CN113984625B - Device for measuring porosity of shale reservoir - Google Patents
Device for measuring porosity of shale reservoir Download PDFInfo
- Publication number
- CN113984625B CN113984625B CN202111269777.4A CN202111269777A CN113984625B CN 113984625 B CN113984625 B CN 113984625B CN 202111269777 A CN202111269777 A CN 202111269777A CN 113984625 B CN113984625 B CN 113984625B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- fixed
- block
- side block
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 238000005259 measurement Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 2
- 239000007789 gas Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a device for measuring porosity of a shale reservoir, which relates to the field of shale reservoirs and comprises a workbench, a first motor fixed on the workbench through a fixing piece and a rotary table arranged on an output shaft of the first motor; at least one sleeve arranged on the turntable, a first side block and a second side block which are positioned above the first motor, wherein a placement area is arranged between the first side block and the second side block; the air inlet and the air outlet are formed in the side wall of the first air cavity; the first electromagnetic valve is arranged in the air inlet hole, and the second electromagnetic valve is arranged in the air outlet hole; a first sealing part arranged on the first side block and a second sealing part arranged on the second side block. Through the device, the porosity of the shale reservoir is directly measured on the exploration site, so that the exploration time is shortened.
Description
Technical Field
The invention relates to the field of shale reservoirs, in particular to a device for measuring the porosity of a shale reservoir.
Background
At present, the conventional shale reservoir porosity determination test method by helium comprises the following steps: a plunger-like core of 2.5cm diameter was placed in the sample chamber, and the volume of the sample chamber decreased as helium permeated into the core. The pore volume is calculated according to Boyle's law and then the porosity is obtained. When a typical worker surveys in the field, a certain amount of shale reservoir sample is taken and then transported back to the laboratory for porosity measurements.
The applicant found that: this process takes a long time to take the shale reservoir sample to return to the laboratory for measurement, resulting in an increase in exploration time.
Disclosure of Invention
In view of this, it is an object of one or more embodiments of the present disclosure to provide an apparatus for measuring shale reservoir porosity, so as to solve the technical problem that in the prior art, it takes a long time to take a sample of shale reservoir to transport it back to a laboratory for measurement, resulting in an increase in exploration time.
In view of the above, one or more embodiments of the present disclosure provide an apparatus for measuring shale reservoir porosity, comprising:
the rotary table comprises a workbench, a first motor fixed on the workbench through a fixing piece and a rotary table arranged on an output shaft of the first motor;
the device comprises at least one sleeve arranged on the turntable, a first side block and a second side block which are positioned above the first motor, wherein the first side block and the second side block are respectively fixed on a workbench through a connecting frame, the first side block is opposite to the second side block, a placement area is arranged between the first side block and the second side block, and the width of the placement area is equal to the height of the sleeve;
the air pump comprises a first air cavity, a second air cavity, a first pressure sensor and a second pressure sensor, wherein the first air cavity is arranged on the end face, facing the second side block, of the first side block, the second air cavity is arranged on the end face, facing the first side block, of the second side block, the first pressure sensor is arranged in the first air cavity, the second pressure sensor is arranged in the second air cavity, an air inlet hole and an air outlet hole are formed in the side wall of the first air cavity, the air inlet hole is connected with the air pump, and the air outlet hole is connected with the vacuum pump;
the first electromagnetic valve is arranged in the air inlet hole, and the second electromagnetic valve is arranged in the air outlet hole;
the sleeve comprises a first sealing part arranged on a first side block and a second sealing part arranged on a second side block, wherein when the sleeve rotates to a placement area, the first sealing part is used for sealing the joint between the first side block and the sleeve, and the second sealing part is used for sealing the joint between the second side block and the sleeve.
Further, the method further comprises the following steps:
a first cylinder fixed in the workbench and a supporting plate arranged on an output shaft of the first cylinder;
the cutting knives are fixed at the two ends of the supporting plate, and the distance between the two cutting knives is equal to the height of the sleeve; when the sleeve rotates to the lowest end of the turntable, the center of the sleeve is positioned right above the center between the two cutters.
Further, the device also comprises a supporting block fixed on the workbench, a second air cylinder arranged on the supporting block and a push plate arranged on an output shaft of the second air cylinder.
Further, the push plate comprises a top plate arranged above the push plate, a plug rod fixed on one side of the lower surface of the top plate and a plug pin fixed on the other side of the lower surface of the top plate, and the plug rod is in sliding connection with a slot arranged at the top end of the push plate.
Further, the sleeves are at least two, and the sleeves are distributed on the periphery of the central axis of the turntable in an annular array.
Further, the first sealing part includes:
the first electromagnet is fixed on the first fixed block;
the sealing device comprises a first sealing cylinder sleeved on a first side block and a first spring positioned between the first sealing cylinder and a first fixing block, wherein one end of the first spring is fixed on the first fixing block, the other end of the first spring is fixed on one side of the first sealing cylinder, and a rubber layer is arranged on the inner side wall of the first sealing cylinder.
Further, an inclined slope is arranged at the side edge of the end part of the sleeve, which faces the second side block, so that the end face of the sleeve forms a cutting surface.
Further, the second sealing part includes:
the second fixed block is fixed on the side surface of the second side block, and the second electromagnet is fixed on the second fixed block;
the second sealing cylinder is sleeved on the second side block, the second spring is arranged between the second sealing cylinder and the second fixing block, one end of the second spring is fixed to the second fixing block, the other end of the second spring is fixed to one side of the second sealing cylinder, the end portion, facing the turntable, of the second sealing cylinder is provided with a sealing end, the inner side face of the sealing end is matched with the inclined plane, and the end face, facing the turntable, of the second side block is provided with a shrinkage groove matched with the sealing end.
Further, the cutting device also comprises a plurality of cutting rods with one ends fixed on the inclined planes.
Further, the method further comprises the following steps:
the rotary block is arranged on the through hole of the rotary disc and fixed on the side wall of the through hole, the sleeve penetrates through the through hole, and the rotary block is rotationally connected with the annular groove arranged on the side surface of the sleeve;
the second motor is fixed on the turntable, and the gear is meshed with a rack arranged on the side surface of the sleeve and used for driving the sleeve to rotate.
The invention has the beneficial effects that: when the device for measuring the porosity of the shale reservoir is used for field exploration, when a worker takes a shale reservoir sample, the sample can be placed on the upper surface of the fixed block, meanwhile, the first motor is started, the rotary table rotates to drive the sleeve to rotate to a position far away from the placement area, the sample is pushed into the sleeve, a part of the sample enters the sleeve and finally passes through the sleeve, the second cylinder is restored to the original position after the completion, the worker cuts off the protruding sample along the end face of the sleeve through the blade, at the moment, the first motor is started again to drive the sleeve to rotate into the placement area, the first motor stops driving, then the first sealing part seals the joint between the first side block and the sleeve, and the second sealing part seals the joint between the second side block and the sleeve. After completion, the first electromagnetic valve is closed, the second electromagnetic valve is started, the vacuum pump is started simultaneously, the first air cavity, the second air cavity and the gas in the shale reservoir layer sample are all extracted, at the moment, the second electromagnetic valve is closed first, the vacuum pump is stopped again, then the first electromagnetic valve is started again, and finally the air pump is started, so that the gas is gradually filled into the first air cavity, and after a certain amount of gas is filled, the first electromagnetic valve is closed, and the air pump is stopped. After a period of time, when the pressure sensed by the first pressure sensor and the pressure sensed by the second pressure sensor are equal, the gas volume of the reservoir in the sample can be calculated through the gram-lambertian Long Fangcheng, so that the porosity of the shale reservoir can be calculated. During the above process, the personnel may remove the next shale to be stored. By the device, the porosity of the adopted shale reservoir can be directly measured on the exploration site, so that the exploration time is shortened.
Drawings
For a clearer description of one or more embodiments of the present description or of the solutions of the prior art, the drawings that are necessary for the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only one or more embodiments of the present description, from which other drawings can be obtained, without inventive effort, for a person skilled in the art.
FIG. 1 is a front cross-sectional view of a specific implementation of an embodiment of the present invention;
FIG. 2 is a side cross-sectional view of a turntable in a specific implementation of an embodiment of the invention;
FIG. 3 is a partial schematic view of a first side block and a second side block in a specific implementation of an embodiment of the invention;
FIG. 4 is a schematic diagram of a second cylinder in an embodiment of the present invention;
FIG. 5 is a schematic diagram I of a cutter in an embodiment of the present invention;
fig. 6 is a schematic diagram II of the cutter according to the embodiment of the present invention.
1, a first motor; 2. a turntable; 3. a sleeve; 4. a first cylinder; 5. a supporting plate; 6. a cutter; 7. a support block; 8. a second cylinder; 9. a push plate; 10. a first side block; 11. a first pressure sensor; 12. a first air chamber; 13. a second side block; 14. a second pressure sensor; 15. a second air chamber; 16. an air inlet hole; 17. an air outlet hole; 18. a first electromagnetic valve; 19. a second electromagnetic valve; 20. a first fixed block; 21. a first electromagnet; 22. a first spring; 23. a first seal cartridge; 24. a second motor; 25. a gear; 26. cutting a rod; 27. a through hole; 28. a rotating block; 29. an annular groove; 30. a second fixed block; 31. a second electromagnet; 32. a second spring; 33. a second seal cartridge; 34. a shrink tank; 35. a top plate; 36. a slot; 37. a rod; 38. and (5) inserting pins.
Detailed Description
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made in detail to the following specific examples.
It is noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present disclosure should be taken in a general sense as understood by one of ordinary skill in the art to which the present disclosure pertains. The use of the terms "first," "second," and the like in one or more embodiments of the present description does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
With the above object in view, in a first aspect, the present invention proposes an embodiment of an apparatus for measuring the porosity of a shale reservoir, as shown in fig. 1, 2, 3 and 4, comprising:
the device comprises a workbench, a first motor 1 fixed on the workbench through a fixing piece and a rotary table 2 arranged on an output shaft of the first motor 1;
the device comprises at least one sleeve 3 arranged on the turntable 2, a first side block 10 and a second side block 13 positioned above the first motor 1, wherein the first side block 10 and the second side block 13 are respectively fixed on a workbench through a connecting frame, the first side block 10 is opposite to the second side block 13, a placement area is arranged between the first side block 10 and the second side block 13, and the width of the placement area is equal to the height of the sleeve 3;
the air pump comprises a first air cavity 12 arranged on the end face of a first side block 10 facing a second side block 13, a second air cavity 15 arranged on the end face of a second side block 13 facing the first side block 10, a first pressure sensor 11 arranged on the first air cavity 12 and a second pressure sensor 14 arranged on the second air cavity 15, wherein an air inlet hole 16 and an air outlet hole 17 are arranged on the side wall of the first air cavity 12, the air inlet hole 16 is connected with the air pump, and the air outlet hole 17 is connected with the vacuum pump;
a first electromagnetic valve 18 arranged in the air inlet hole 16 and a second electromagnetic valve 19 arranged in the air outlet hole 17;
a first sealing part arranged on the first side block 10 and a second sealing part arranged on the second side block 13, wherein when the sleeve 3 rotates to a placement area, the first sealing part is used for sealing the joint between the first side block 10 and the sleeve 3, and the second sealing part is used for sealing the joint between the second side block 13 and the sleeve 3.
In the present embodiment, the volume of the first air chamber 12 is v 1 The volume of the first air chamber 12 is v 2 The volume of the interior of the sleeve 3 is v 3 When the field exploration is carried out, when a shale reservoir sample is taken by a worker, the sample can be placed on the upper surface of the supporting block 7, meanwhile, the first motor 1 is started, the rotary table 2 rotates to drive the sleeve 3 to rotate to a position far away from the placement area, the sample is pushed into the sleeve 3, a part of the sample enters the sleeve 3 and finally passes through the sleeve 3, the second cylinder 8 is restored to the original position after the completion, then the worker cuts off the protruding sample along the end face of the sleeve 3 through a blade, at the moment, the first motor 1 is started again to drive the sleeve 3 to rotate into the placement area, the first motor 1 stops driving, then the first sealing part seals the joint between the first side block 10 and the sleeve 3, and the second sealing part seals the joint between the second side block 13 and the sleeve 3. After completion, the first electromagnetic valve 18 is closed, the second electromagnetic valve 19 is started, the vacuum pump is started simultaneously, the first air cavity 12, the second air cavity 15 and the gas in the shale reservoir sample are all extracted, at the moment, the second electromagnetic valve 19 is closed firstly, the vacuum pump is stopped again, then the first electromagnetic valve 18 is started again, and finally the air pump is started, so that the gas is gradually filled into the first air cavity 12, after a certain amount of gas is filled, the gas with the mass of m is filled together, and after the first electromagnetic valve 18 is closed, the air pump is stopped. After a period of time, when the pressure sensed by the first pressure sensor 11 and the pressure sensed by the second pressure sensor 14 are p, the gas mass in the first gas chamber 12 is m 1 The second air cavity 15 the mass of the gas in the reactor is m 2 The temperature of the gas is t, defined by keabb Long Fangcheng:
PV＝NRT；
where n=m/M, M represents the gas mass, M represents the gas molar mass;
p represents the gas pressure; v represents the gas volume;
r represents an ideal gas constant; t represents the gas temperature;
obtaining m 1 ＝(p v 1 M)/(Rt)；m 2 ＝(p v 2 M)/(Rt); such that the mass of gas in the sample in the sleeve 3 is m 3 ＝m-m 1 -m 2 The method comprises the steps of carrying out a first treatment on the surface of the Further, the volume of the pores in the sample in the sleeve 3 is calculated to be v by the Kearab Long Fangcheng 4 ＝(m 3 Rt)/(p M) such that the void fraction is (v) 4 /v 3 ) 100%; by the device, the porosity of the adopted shale reservoir can be directly measured on the exploration site, so that the exploration time is shortened.
As an embodiment, as shown in fig. 5 and 6, the method further includes:
a first cylinder 4 fixed in the workbench and a stay plate 5 mounted on an output shaft of the first cylinder 4;
the cutters 6 are fixed at the two ends of the supporting plate 5, and the distance between the two cutters 6 is equal to the height of the sleeve 3; when the sleeve 3 is turned to the lowest end of the turntable 2, the centre of the sleeve 3 is located directly above the centre between the two cutters 6.
Here, after the sample enters the sleeve 3, the first cylinder 4 is started to push the cutter 6 to move upwards, so that the part protruding out of the sample in the sleeve 3 can be cut off, and then the first cylinder 4 is restored to the original position, so that the method is convenient and quick.
In addition, as shown in fig. 1 and 4, the device further comprises a supporting block 7 fixed on the workbench, a second air cylinder 8 installed on the supporting block 7, and a push plate 9 installed on an output shaft of the second air cylinder 8, so that a worker can place a sample on the upper surface of the supporting block 7, after the sleeve 3 rotates to be right opposite to the second air cylinder 8, the second air cylinder 8 is started, the push plate 9 pushes the sample to move towards the sleeve 3, after the sample contacts with the sleeve 3, the second air cylinder 8 continues to push, and a part of the sample enters the sleeve 3 under the cutting of the end face of the sleeve 3, so that the device is more convenient for the worker to operate.
In the above device, as shown in fig. 4, the device further comprises a top plate 35 disposed above the push plate 9, a plug rod 37 fixed on one side of the lower surface of the top plate 35, and a pin 38 fixed on the other side of the lower surface of the top plate 35, wherein the plug rod 37 is slidably connected with a slot 36 disposed at the top end of the push plate 9, so that after the sample is placed on the upper surface of the support block 7, the pin 38 is inserted into the sample by applying a downward external force to the top plate 35, thereby fixing the sample and preventing the sample from moving.
As an embodiment, as shown in fig. 1 and fig. 2, at least two sleeves 3 are provided, and the sleeves 3 are distributed in a ring array around the central axis of the turntable 2. In this way, while one of the sleeves 3 is being tested in the placement area, another sample can be placed on the support block 7 and then pushed into the other sleeve 3 by the second cylinder 8, so that the testing efficiency is higher.
As an embodiment, as shown in fig. 1 and 3, the first sealing portion includes:
a first fixed block 20 fixed to a side surface of the first side block 10, and a first electromagnet 21 fixed to the first fixed block 20;
the first sealing cylinder 23 sleeved on the first side block 10 and the first spring 22 positioned between the first sealing cylinder 23 and the first fixed block 20, wherein one end of the first spring 22 is fixed on the first fixed block 20, the other end of the first spring 22 is fixed on one side of the first sealing cylinder 23, and a rubber layer is arranged on the inner side wall of the first sealing cylinder 23.
Here, before the sleeve 3 enters the placement area, the first electromagnet 21 is energized to generate attractive force to the first sealing cylinder 23, so that the first sealing cylinder 23 overcomes the elastic force of the first spring 22, and the first sealing cylinder 23 is fully contracted onto the first side block 10, and then after the sleeve 3 enters the placement area, the first electromagnet 21 is de-energized, so that the first sealing cylinder 23 seals the joint between the first side block 10 and the sleeve 3 through the first sealing cylinder 23 under the action of the first spring 22.
In order to make the sample more smoothly introduced into the sleeve 3 by pushing the second cylinder 8, as an embodiment, as shown in fig. 3, 5 and 6, the side edge of the end of the sleeve 3 facing the second side block 13 is provided with an inclined slope, so that the end surface of the sleeve 3 forms a cutting surface.
As an embodiment, as shown in fig. 3, the second sealing part includes:
a second fixed block 30 fixed to a side surface of the second side block 13 and a second electromagnet 31 fixed to the second fixed block 30;
the second sealing cylinder 33 sleeved on the second side block 13 and the second spring 32 positioned between the second sealing cylinder 33 and the second fixed block 30, one end of the second spring 32 is fixed on the second fixed block 30, the other end of the second spring 32 is fixed on one side of the second sealing cylinder 33, the end part of the second sealing cylinder 33, facing the turntable 2, is provided with a sealing end, the inner side surface of the sealing end is matched with an inclined surface, and the end surface, facing the turntable 2, of the second side block 13 is provided with a shrinkage groove 34 matched with the sealing end.
In this embodiment, before the sleeve 3 enters the placement area, the second electromagnet 31 is powered to generate an attractive force to the second sealing cylinder 33, so that the second sealing cylinder 33 overcomes the elastic force of the second spring 32, the sealing end of the second sealing cylinder 33 is contracted in the contraction groove 34, and then after the sleeve 3 enters the placement area, the second electromagnet 31 is powered off, so that the second sealing cylinder 33 is combined with the inclined surface of the sleeve 3 under the action of the second spring 32.
In addition, as shown in fig. 5 and 6, the cutting bar also comprises a plurality of cutting bars 26 with one ends fixed on the inclined plane. Thus, when a part of the sample enters the sleeve 3, the other part is outside the sleeve 3, and the part can be cut through the cutting rod 26, so that the sample enters the sleeve 3 more smoothly.
As an embodiment, as shown in fig. 1, 5 and 6, the method further includes:
a through hole 27 formed in the turntable 2 and a rotating block 28 fixed to a side wall of the through hole 27, wherein the sleeve 3 passes through the through hole 27, and the rotating block 28 is rotatably connected with an annular groove 29 formed in a side surface of the sleeve 3;
a second motor 24 corresponding to the sleeve 3 and a gear 25 mounted on an output shaft of the second motor 24, wherein the second motor 24 is fixed on the turntable 2, and the gear 25 is meshed with a rack provided on a side surface of the sleeve 3 and is used for driving the sleeve 3 to rotate.
Here, when the second motor 24 is started, the sleeve 3 is driven to rotate, so that the efficiency of cutting the sample is higher and the cutting position is smoother.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; combinations of features of the above embodiments or in different embodiments are also possible within the spirit of the present disclosure, steps may be implemented in any order, and there are many other variations of the different aspects of one or more embodiments described above which are not provided in detail for the sake of brevity.
The present disclosure is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the one or more embodiments of the disclosure, are therefore intended to be included within the scope of the disclosure.
Claims (8)
1. An apparatus for measuring shale reservoir porosity, comprising:
the rotary table comprises a workbench, a first motor fixed on the workbench through a fixing piece and a rotary table arranged on an output shaft of the first motor;
the device comprises at least one sleeve arranged on the turntable, a first side block and a second side block which are positioned above the first motor, wherein the first side block and the second side block are respectively fixed on a workbench through a connecting frame, the first side block is opposite to the second side block, a placement area is arranged between the first side block and the second side block, and the width of the placement area is equal to the height of the sleeve;
the air pump comprises a first air cavity, a second air cavity, a first pressure sensor and a second pressure sensor, wherein the first air cavity is arranged on the end face, facing the second side block, of the first side block, the second air cavity is arranged on the end face, facing the first side block, of the second side block, the first pressure sensor is arranged in the first air cavity, the second pressure sensor is arranged in the second air cavity, an air inlet hole and an air outlet hole are formed in the side wall of the first air cavity, the air inlet hole is connected with the air pump, and the air outlet hole is connected with the vacuum pump;
the first electromagnetic valve is arranged in the air inlet hole, and the second electromagnetic valve is arranged in the air outlet hole;
the first sealing part is arranged on the first side block and the second sealing part is arranged on the second side block, when the sleeve rotates to the placement area, the first sealing part is used for sealing the joint between the first side block and the sleeve, and the second sealing part is used for sealing the joint between the second side block and the sleeve;
further comprises:
a first cylinder fixed in the workbench and a supporting plate arranged on an output shaft of the first cylinder;
the cutting knives are fixed at the two ends of the supporting plate, and the distance between the two cutting knives is equal to the height of the sleeve; when the sleeve rotates to the lowest end of the turntable, the center of the sleeve is positioned right above the center between the two cutters;
the side edge of the end of the sleeve facing the second side block is provided with an inclined slope, so that the end face of the sleeve forms a cutting surface.
2. The apparatus for measuring shale reservoir porosity of claim 1, further comprising a spacer fixed to the table, a second cylinder mounted to the spacer, and a push plate mounted to an output shaft of the second cylinder.
3. The device for measuring the porosity of a shale reservoir according to claim 2, further comprising a top plate arranged above the pushing plate, a plug rod fixed on one side of the lower surface of the top plate, and a plug pin fixed on the other side of the lower surface of the top plate, wherein the plug rod is in sliding connection with a slot arranged at the top end of the pushing plate.
4. A shale reservoir porosity measurement apparatus as claimed in claim 3, wherein at least two sleeves are provided and the sleeves are distributed in an annular array around the central axis of the rotary disc.
5. The apparatus for measuring shale reservoir porosity of claim 1, wherein the first seal comprises:
the first electromagnet is fixed on the first fixed block;
the sealing device comprises a first sealing cylinder sleeved on a first side block and a first spring positioned between the first sealing cylinder and a first fixing block, wherein one end of the first spring is fixed on the first fixing block, the other end of the first spring is fixed on one side of the first sealing cylinder, and a rubber layer is arranged on the inner side wall of the first sealing cylinder.
6. The apparatus for measuring shale reservoir porosity as claimed in claim 1, wherein said second seal comprises:
the second fixed block is fixed on the side surface of the second side block, and the second electromagnet is fixed on the second fixed block;
the second sealing cylinder is sleeved on the second side block, the second spring is arranged between the second sealing cylinder and the second fixing block, one end of the second spring is fixed to the second fixing block, the other end of the second spring is fixed to one side of the second sealing cylinder, the end portion, facing the turntable, of the second sealing cylinder is provided with a sealing end, the inner side face of the sealing end is matched with the inclined plane, and the end face, facing the turntable, of the second side block is provided with a shrinkage groove matched with the sealing end.
7. The apparatus for measuring shale reservoir porosity as recited in claim 1, further comprising a plurality of cutting bars secured at one end to the inclined ramp.
8. The apparatus for measuring shale reservoir porosity as claimed in claim 1, further comprising:
the rotary block is arranged on the through hole of the rotary disc and fixed on the side wall of the through hole, the sleeve penetrates through the through hole, and the rotary block is rotationally connected with the annular groove arranged on the side surface of the sleeve;
the second motor is fixed on the turntable, and the gear is meshed with a rack arranged on the side surface of the sleeve and used for driving the sleeve to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269777.4A CN113984625B (en) | 2021-10-29 | 2021-10-29 | Device for measuring porosity of shale reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269777.4A CN113984625B (en) | 2021-10-29 | 2021-10-29 | Device for measuring porosity of shale reservoir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113984625A CN113984625A (en) | 2022-01-28 |
| CN113984625B true CN113984625B (en) | 2024-04-09 |
Family
ID=79744161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269777.4A Active CN113984625B (en) | 2021-10-29 | 2021-10-29 | Device for measuring porosity of shale reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113984625B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE868774A (en) * | 1977-07-06 | 1978-11-03 | American Coldset Corp | METHOD AND CORE FOR OBTAINING AND RECOVERING SAMPLES OF UNDERGROUND LAYERS |
| US4573342A (en) * | 1984-09-14 | 1986-03-04 | Marathon Oil Company | Apparatus and method for the automatic porosity and permeability testing of multiple core samples |
| US4649737A (en) * | 1984-09-14 | 1987-03-17 | Marathon Oil Company | Apparatus and method for automatic testing of core samples |
| US4950844A (en) * | 1989-04-06 | 1990-08-21 | Halliburton Logging Services Inc. | Method and apparatus for obtaining a core sample at ambient pressure |
| CN1508531A (en) * | 2002-12-13 | 2004-06-30 | 石油大学(北京) | Method for Measuring Porosity of Tight Rock |
| CN102353625A (en) * | 2011-08-31 | 2012-02-15 | 中国石油大学(北京) | Method for measuring overburden porosity with water in permeation fluid mechanics experiment |
| ES2387277A1 (en) * | 2012-03-30 | 2012-09-19 | Universidad De Oviedo | Device and method for conducting tests that determine the breaking mechanism on rock samples using cutting discs (Machine-translation by Google Translate, not legally binding) |
| CN103233725A (en) * | 2013-04-17 | 2013-08-07 | 西南石油大学 | Device and method for determining high temperature and high pressure full diameter core mud pollution evaluation |
| CN104729974A (en) * | 2015-04-16 | 2015-06-24 | 中国石油大学(华东) | Gasometric porosity measuring method taking temperature effect into consideration |
| CN105873706A (en) * | 2013-12-30 | 2016-08-17 | Bp北美公司 | Sample preparation apparatus for direct numerical simulation of rock properties |
| WO2016186626A1 (en) * | 2015-05-15 | 2016-11-24 | Halliburton Energy Services, Inc. | Determining core sample volume within a sealed pressure vessel |
| CN106932323A (en) * | 2017-02-22 | 2017-07-07 | 中国石油大学(北京) | A kind of shale gas reservoir gas effecive porosity inversion method |
| CN208653995U (en) * | 2018-11-16 | 2019-03-26 | 西南石油大学 | A shale reservoir porosity measurement device |
| CN110095397A (en) * | 2019-04-26 | 2019-08-06 | 四川杰瑞泰克科技有限公司 | The multi-functional full-automatic shale gas gaging hole porosity measurement method of GRT-1 type and device |
| RU2702490C1 (en) * | 2019-06-28 | 2019-10-08 | Общество с ограниченной ответственностью "Скуратовский опытно-экспериментальный завод" | Method of monitoring condition of rock cutting tools |
| AU2020101815A4 (en) * | 2020-08-14 | 2020-09-17 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | An experimental instrument for rock mass tension and compression synergy |
| CN212419986U (en) * | 2020-04-22 | 2021-01-29 | 山东莱钢永锋钢铁有限公司 | Sample holding device of linear cutting equipment |
| CN112485175A (en) * | 2020-11-12 | 2021-03-12 | 武汉古生代检测科技有限公司 | Rock porosity measuring method and measuring device |
| WO2021051968A1 (en) * | 2019-09-18 | 2021-03-25 | 中国科学院广州地球化学研究所 | Centrifugal continuous gas sampling thermal simulation experiment device for source rock hydrocarbon genertion |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347284B2 (en) * | 2004-10-20 | 2008-03-25 | Halliburton Energy Services, Inc. | Apparatus and method for hard rock sidewall coring of a borehole |
| US7372018B2 (en) * | 2005-07-26 | 2008-05-13 | Baker Hughes Incorporated | Determination of gas pressure and saturation simultaneously |
| US8739898B2 (en) * | 2010-04-09 | 2014-06-03 | Bp Corporation North America Inc. | Apparatus and methods for detecting gases during coring operations |
| US11371905B2 (en) * | 2019-05-24 | 2022-06-28 | Saudi Arabian Oil Company | Methods for detecting leakage in permeability measurement system |
-
2021
- 2021-10-29 CN CN202111269777.4A patent/CN113984625B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE868774A (en) * | 1977-07-06 | 1978-11-03 | American Coldset Corp | METHOD AND CORE FOR OBTAINING AND RECOVERING SAMPLES OF UNDERGROUND LAYERS |
| US4573342A (en) * | 1984-09-14 | 1986-03-04 | Marathon Oil Company | Apparatus and method for the automatic porosity and permeability testing of multiple core samples |
| US4649737A (en) * | 1984-09-14 | 1987-03-17 | Marathon Oil Company | Apparatus and method for automatic testing of core samples |
| US4950844A (en) * | 1989-04-06 | 1990-08-21 | Halliburton Logging Services Inc. | Method and apparatus for obtaining a core sample at ambient pressure |
| CN1508531A (en) * | 2002-12-13 | 2004-06-30 | 石油大学(北京) | Method for Measuring Porosity of Tight Rock |
| CN102353625A (en) * | 2011-08-31 | 2012-02-15 | 中国石油大学(北京) | Method for measuring overburden porosity with water in permeation fluid mechanics experiment |
| ES2387277A1 (en) * | 2012-03-30 | 2012-09-19 | Universidad De Oviedo | Device and method for conducting tests that determine the breaking mechanism on rock samples using cutting discs (Machine-translation by Google Translate, not legally binding) |
| CN103233725A (en) * | 2013-04-17 | 2013-08-07 | 西南石油大学 | Device and method for determining high temperature and high pressure full diameter core mud pollution evaluation |
| CN105873706A (en) * | 2013-12-30 | 2016-08-17 | Bp北美公司 | Sample preparation apparatus for direct numerical simulation of rock properties |
| CN104729974A (en) * | 2015-04-16 | 2015-06-24 | 中国石油大学(华东) | Gasometric porosity measuring method taking temperature effect into consideration |
| WO2016186626A1 (en) * | 2015-05-15 | 2016-11-24 | Halliburton Energy Services, Inc. | Determining core sample volume within a sealed pressure vessel |
| CN106932323A (en) * | 2017-02-22 | 2017-07-07 | 中国石油大学(北京) | A kind of shale gas reservoir gas effecive porosity inversion method |
| CN208653995U (en) * | 2018-11-16 | 2019-03-26 | 西南石油大学 | A shale reservoir porosity measurement device |
| CN110095397A (en) * | 2019-04-26 | 2019-08-06 | 四川杰瑞泰克科技有限公司 | The multi-functional full-automatic shale gas gaging hole porosity measurement method of GRT-1 type and device |
| RU2702490C1 (en) * | 2019-06-28 | 2019-10-08 | Общество с ограниченной ответственностью "Скуратовский опытно-экспериментальный завод" | Method of monitoring condition of rock cutting tools |
| WO2021051968A1 (en) * | 2019-09-18 | 2021-03-25 | 中国科学院广州地球化学研究所 | Centrifugal continuous gas sampling thermal simulation experiment device for source rock hydrocarbon genertion |
| CN212419986U (en) * | 2020-04-22 | 2021-01-29 | 山东莱钢永锋钢铁有限公司 | Sample holding device of linear cutting equipment |
| AU2020101815A4 (en) * | 2020-08-14 | 2020-09-17 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | An experimental instrument for rock mass tension and compression synergy |
| CN112485175A (en) * | 2020-11-12 | 2021-03-12 | 武汉古生代检测科技有限公司 | Rock porosity measuring method and measuring device |
Non-Patent Citations (5)
| Title |
|---|
| Numerical Investigation on Rock-Fracturing Mechanism by Using Splitter under Hole Assistance;Hongsheng Li等;《Shock snd Vibration》;20190916;第2019卷;1-14 * |
| 低孔隙度低渗透率岩石孔隙度与渗透率关系研究;王凤翔;《石化技术》;20151228;第22卷(第12期);167 * |
| 张玄奇.《石油工程实验教程》.西北大学出版社,2001,(第1版),63-68. * |
| 沉积盆地地层孔隙动力学研究进展;刘震等;《石油学报》;20161025;第37卷(第10期);1193-1215 * |
| 泥页岩微纳米孔隙结构及储气能力研究;阴建新;《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》;20190715(第7期);5-8 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113984625A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2890818C (en) | Apparatus and methodology for measuring properties of microporous material at multiple scales | |
| FR2570496A1 (en) | APPARATUS AND METHOD FOR AUTOMATIC POROSITY TESTING AND PERMEABILITY OF MULTIPLE CARROT SAMPLES | |
| US6453727B1 (en) | Method of evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom | |
| CN102621034B (en) | Reservoir capillary pressure curve determinator under high temperature and pressure | |
| US5086643A (en) | System and method for determining multi-phase relative permeability of a subterranean reservoir | |
| US20040211252A1 (en) | Method and device for evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom | |
| CN108414560A (en) | A kind of method of the fine and close oily filling process of nuclear-magnetism-displacement combined apparatus evaluation | |
| CN211148622U (en) | Sampling device for water quality testing | |
| CN113984625B (en) | Device for measuring porosity of shale reservoir | |
| CA2889823A1 (en) | Characterization of rock and other samples by process and system for the preparation of samples using castable mounting materials | |
| CN101424600B (en) | Method for preparing high smectite sandstone casting slice | |
| CA3180724A1 (en) | High pressure core chamber and experimental vessel | |
| US20160082484A1 (en) | Method and apparatus for cleaning rock cores | |
| CN112526003A (en) | Automatic pouring and recycling device and method for couplant of ultrasonic probe | |
| Mason et al. | Effect of sample shape on counter-current spontaneous imbibition production vs time curves | |
| US6539795B1 (en) | Method for determining a fluid contact level in a hydrocarbon fluid bearing formation | |
| CN113777002B (en) | Shale oil seepage characteristic evaluation device and method | |
| CN108152105B (en) | A device and method for saturating dense rock | |
| Manheim et al. | Description of a hydraulic sediment squeezer | |
| EP0473472A1 (en) | Device for making thermodynamic measurements on samples coming preferably from oil formations | |
| CN112665987B (en) | Device and method for testing tensile strength of rock core under confining pressure condition based on Brazilian splitting | |
| CN215598958U (en) | A core holder and a core radial permeability measuring device | |
| CN114460269A (en) | Plug-in type soil water content rapid detection device and operation method thereof | |
| CN212340951U (en) | Porosity measuring device | |
| Kokkedee et al. | Towards measurement of capillary pressure and relative permeability at representative wettability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |