CN101975727B - High-temperature static mixed plugging agent initial setting time detection device - Google Patents
High-temperature static mixed plugging agent initial setting time detection device Download PDFInfo
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- CN101975727B CN101975727B CN2010102914822A CN201010291482A CN101975727B CN 101975727 B CN101975727 B CN 101975727B CN 2010102914822 A CN2010102914822 A CN 2010102914822A CN 201010291482 A CN201010291482 A CN 201010291482A CN 101975727 B CN101975727 B CN 101975727B
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- 230000003068 static effect Effects 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- 210000004907 gland Anatomy 0.000 claims abstract description 55
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 34
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 40
- 238000010276 construction Methods 0.000 abstract description 8
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
High-temperature static mixed plugging agent initial setting time detection device is applied to the oil field and is used for detecting the high-temperature static initial setting time of mixed plugging agent. Comprises a torsion meter part, an outer cylinder part and an inner cylinder part. A torsion meter part: the top of the torsion meter is a disk-shaped handle, the upper surface of the handle is provided with torsion scales, the outer end of the spiral spring steel sheet is fixed on the handle, the inner end of the spiral spring steel sheet is fixed with a torsion pointer center rod, and the center of the lower plane of the inner disk is fixed with a connector. An outer cylinder part: the steel cylinder gland and the steel cylinder sealing cover are connected to the upper portion of the steel cylinder, a central shaft is arranged in a central hole of the steel cylinder sealing cover, and the upper end of the central shaft is connected with a connector of the torsion meter portion. The inner barrel part comprises a paddle barrel and a test paddle. The upper end of the cylindrical rod is connected with the lower end of the central shaft. The effect is as follows: the initial setting time detection of the mixed plugging agent can be carried out under the condition of simulating the temperature of a construction well section or a stratum, and the method is more suitable for the optimization of the formulas of the plugging agent and the additive.
Description
Technical field
The present invention relates to the oil field and use testing laboratory's pick-up unit, particularly a kind of detection mixes the high temperate zone of type stifled agent and presses static presetting period device.
Background technology
At present; In recent years; But it is found that can be fixed and multiviscosisty class material in the work progress of oil field, have special advantages, so but in the construction in later period process in oil field, use multiviscosisty class field of materials and constantly enlarge, and successfully be applied to the water blockoff, profile control, seal, leak stopping etc. in oil field; In the work progress, kind also is being on the increase.But belong to consolidated like cement, there are strict detection method and standard the thickening time under the different temperatures, but but a lot of in recent years oil field use can be fixed and multiviscosisty class material belong to the Compositional type potpourri.Portion has added cement, superfine cement, flyash, lime, gypsum, resin, fiber, polymkeric substance etc. within it; When using is to be mixed with slurry with water according to certain ratio; With pump its slurry is injected into zone of interest then; Under the environment of zone of interest through multiviscosisty or curing behind the certain hour, thereby reach the purpose of shutoff zone of interest.Multiviscosisty or solidify also can appear in this type material under the different time different temperatures, but it is difficult to or can not be directly detects with the standard of cement, but different manufacturers produce can fixedly to reach multiviscosisty class material product performance difference bigger.Multiviscosisty degree under the different time different temperatures---" presetting period " is a key index of this material construction safety performance of check, but to this index neither one unified detection method and device.If can carry out the detection in " presetting period " with the method for normal pressure below 80 ℃, but under high temperature (as more than 100 ℃) condition, seethe with excitement owing to water, existing apparatus can't detect this index.
Summary of the invention
The objective of the invention is: provide a kind of high temperature static to mix a type stifled agent presetting period pick-up unit; Before construction, the presetting period of mixing type stifled agent is detected and regulates; Under the temperature conditions on construction simulation well section or stratum; The kind of complex additive, adding quantity (concentration), water addition ratio example, thereby the requirement of the construction at satisfied scene.
The technical scheme that the present invention adopts is: high temperature static is mixed a type stifled agent presetting period pick-up unit, mainly by comprising torsion gage part, urceolus part and inner cylindrical portion.
1, torsion gage part:
The top of torsion gage is discoid handle; There is the scale of torque magnitude the upper surface outer of discoid handle; In the bottom of discoid handle interior disk is arranged; The outer end of spiral spring steel disc is fixed on the discoid handle with the screw spiral spring steel disc that two is fixing between discoid handle and interior disk, to have one, and the inner of spiral spring steel disc is fixed with torsion pointer center-pole; The center pit of discoid handle is passed in the center-pole upper end, and the upper end of center-pole is fixed with the torsion pointer.The inner of interior disk and spiral spring steel disc is fixed, and the lower plane center fixation of interior disk has connector.Handle with hand slewing circle plate-like; Discoid handle makes the spiral spring steel disc stressed; The spiral spring steel disc drives inner fixing torsion pointer, interior disk and connector rotation; When rotating the torsion gage handle before the tested stifled agent initial set, under the situation of acceptor center axle resistance, torsion pointer, dial plate, connector do not drive central shaft and rotate (if disregarding frictional resistance) synchronously with discoid handle connector; , tested stifled agent rotates the torsion gage handle when being tending towards multiviscosisty or initial set; The resistance of connector acceptor center axle; The pointer velocity of rotation will lag behind handle and dial plate, and along with the rotational angle of the increase pointer of central shaft torsion reduces, thereby make the torsion pointer demonstrate the size of torsion.
2, urceolus part: comprise central shaft seal pressure cap, steel cylinder gland bonnet, central shaft O-ring seal, steel cylinder, central shaft and steel cylinder gland.There is the steel cylinder top exterior walls at the end that screw thread is arranged cylindrical; The steel cylinder gland is through being threaded in the top of steel cylinder; Be stamped the steel cylinder gland bonnet in the bottom of steel cylinder gland and in the upper end of steel cylinder; There is protruding hollow cylinder at the center, upper surface of steel cylinder gland bonnet, and hollow cylinder and steel cylinder gland bonnet are as a whole, and hollow cylinder is upward through steel cylinder gland center pit.Tighten the steel cylinder gland, steel cylinder gland bonnet and steel cylinder are compressed, reach the effect of sealing.The right cylinder of steel cylinder gland bonnet has center pit, and a central shaft is arranged in steel cylinder gland bonnet center pit, between central shaft and the steel cylinder gland bonnet center bore inner wall central shaft O-ring seal is arranged.Internal thread is arranged at the center pit top at the steel cylinder gland bonnet; Steel cylinder gland bonnet top is fixed with cylinder bodily form central shaft seal pressure cap through screw thread; The central shaft seal pressure cap has center pit; The center pit of central shaft seal pressure cap is passed in the central shaft upper end, is connected with the connector of torsion gage part in the upper end of central shaft.Steel cylinder gland bonnet center pit is passed in the central shaft lower end.
3, inner cylindrical portion: comprise slurry tube and test oar.Slurry tube has the cylinder at the end for the cylinder bodily form, is fixed with a slurry cup geometrical clamp below the steel cylinder gland bonnet, and a slurry glass geometrical clamp is fixed the slurry tube of lower end; The slurry tube is fixed in the steel cylinder.In the slurry tube, a test oar is arranged, the structure of test oar is on the wall of cylindrical bar, to be fixed with two-layer blade up and down, and every layer of blade is made up of two blades, and two blades outwards stretch from cylindrical bar symmetrically, and two-layer blade and cylindrical bar are as a whole.The upper end of cylindrical bar is connected with central shaft, and the bolt of central shaft lower end links together the cylindrical bar at central shaft and blade center.
Starch tube inside and be placed with the tested stifled agent for preparing, the test oar is immersed in the tested stifled agent, the torsion when the test oar is used for transmitting top torsion gage rotation.
For simplified structure, described steel cylinder gland bonnet and steel cylinder gland are made as one.
Install for ease; The connector of described torsion gage part is the cylinder bodily form; In the lower surface of connector is the circular cone inclined-plane; The protruding rectangle tongue piece in central upper portion position, circular cone inclined-plane, there is a Baltimore groove of laterally opening at the central shaft top along diametric(al), and the tongue-like pieces of circular cone inclined-plane upper lobes directly is inserted in the central shaft top to be had in the Baltimore groove.
On the steel cylinder gland bonnet and a ring groove being arranged, a resistant to elevated temperatures sealing gasket is arranged in the groove with the steel cylinder contact portion.
The principle of work that the summary high temperature static is mixed type stifled agent presetting period pick-up unit.Consult Fig. 1.
At first need mix a type stifled agent presetting period pick-up unit and demarcate high temperature static, then could official testing.
The tested stifled agent 10 of mixing class in the slurry tube 7 multiviscosisty or solidification phenomenon can occur in uniform temperature with in the time, and along with presetting period of the tested stifled agent 10 of the rising of temperature can shorten, this device is to accomplish detection by the mode of survey torsion.Because the torsion in different tested stifled 10 presetting periods of agent is different.
The tested stifled agent 10 for preparing is packed in the slurry tube 7; The outside of slurry tube 7 is heat transfer medium 8 (water), and whole steel cylinder 9 is an air-tight state, when ambient temperature raises; The temperature of the tested stifled agent 10 of slurry tube 7 inside also slowly rises thereupon; Along with the prolongation of time, after slurry tube 7 temperature inside and ambient temperature reach equilibrium state, begin to keep temperature constant state.
, tested stifled agent 10 is in flow state before getting into the initial set state; At this moment frictional resistance is smaller in the tested stifled agent 10; Rotate the torsion gage 1 on top; Torsion gage 1 drives the test oar 6 that is immersed in the tested stifled agent 10 through central shaft 11 and rotates, and the resistance that the blade of 10 pairs of test oars 6 of at this moment tested stifled agent produces is less, and the torque value that shows on the torsion gage 1 also is very little; Along with the tested stifled agent 10 of the prolongation of time gets into initial multiviscosisty state, when at this moment rotating torsion gage 1, torque value is higher relatively, and promptly tested stifled agent 10 has begun to get into the multiviscosisty state, and the resistance of the blade of 10 pairs of test oars 6 of tested stifled agent increases; When tested stifled agent 10 gets into the initial set state; Tested stifled agent 10 has been in semisolid or solid-state; At this moment it is very difficult at slurry tube 7 internal activities to test oar 6; Be shown as very high torque value on the torsion gage 1 or for infinitely great, promptly tested stifled agent 10 has reached the initial set state, begin to get into that the time to the initial set state is the tested presetting period of stifled agent 10 under this temperature when keeping constant temperature from tested stifled agent 10.
Beneficial effect of the present invention: high temperature static of the present invention is mixed a type stifled agent presetting period pick-up unit, can be under the temperature conditions on construction simulation well section or stratum, and the stifled agent presetting period of type of mixing is detected, and is more suitable in blocking up the preferred of agent and additive formulations.Can under 100 ℃～150 ℃ temperature conditions, carry out the detection in " presetting period ", this device duty is good, dependable performance, and test result data repeatability is better, the difference of same sample repeated test＜5%.Before constructing, the presetting period of mixing type stifled agent is detected and regulates, in kind, adding quantity (concentration), the water addition ratio example of complex additive, thus the requirement of the construction at satisfied scene.Simple in structure, easy to operate, advantages of small volume detects, experimental cost is low.
Description of drawings
Fig. 1 is that high temperature static of the present invention is mixed a type stifled agent presetting period pick-up unit structural profile synoptic diagram.
Among the figure, 1. torsion gage, 2. central shaft seal pressure cap, 3. steel cylinder gland bonnet, 4. central shaft O-ring seal; 5. sealing gasket is 6. tested oar, 7. slurry tube, 8. heat transfer medium, 9. steel cylinder; 10. tested stifled agent, 11. central shafts, 12. steel cylinder glands, 13. bolts, 14. slurry cup geometrical clamps.
Embodiment
Embodiment 1: mixing a type stifled agent presetting period pick-up unit with a high temperature static is example, and the present invention is done further explain.
Consult Fig. 1.High temperature static of the present invention is mixed a type stifled agent presetting period pick-up unit, comprises torsion gage part, urceolus part and inner cylindrical portion.
The torsion gage part: the top of torsion gage 1 is discoid handle; There is the torsion scale upper surface outer of discoid handle; In the bottom of discoid handle interior disk is arranged; The outer end of spiral spring steel disc is fixed on the discoid handle with the screw spiral spring steel disc that two is fixing between discoid handle and interior disk, to have one, and the inner of spiral spring steel disc is fixed with torsion pointer center-pole; The center pit of discoid handle is passed in the center-pole upper end, and the upper end of center-pole is fixed with the torsion pointer.The inner of interior disk and spiral spring steel disc is fixed, and the lower plane center fixation of interior disk has connector.The connector of torsion gage part is the cylinder bodily form; In the lower surface of connector is the circular cone inclined-plane; The protruding rectangle tongue piece in central upper portion position, circular cone inclined-plane; There is a Baltimore groove of laterally opening at central shaft 11 tops along diametric(al), and the tongue-like pieces of circular cone inclined-plane upper lobes directly is inserted in central shaft 11 tops to be had in the Baltimore groove.
Urceolus part: comprise central shaft seal pressure cap 2, steel cylinder gland bonnet 3, central shaft O-ring seal 4, sealing gasket 5, steel cylinder 9, central shaft 11 and steel cylinder gland 12.Steel cylinder 9 adopts stainless steel to process, and barrel is an integral body with the tube end, and internal diameter is 63.5mm, degree of depth 157mm, and wall thickness 9.25mm, internal volume are 500ml.There are steel cylinder 9 top exterior walls at the end that screw thread is arranged cylindrical; Steel cylinder gland 12 is through being threaded in the top of steel cylinder 9; Be stamped steel cylinder gland bonnet 3 in the bottom of steel cylinder gland 12 and in the upper end of steel cylinder 9; There is protruding right cylinder at the center, upper surface of steel cylinder gland bonnet 3, and right cylinder passes steel cylinder gland 12 center pits.The right cylinder of steel cylinder gland bonnet 3 has center pit, and a central shaft 11 is arranged in steel cylinder gland bonnet 3 center pits, between central shaft 11 and steel cylinder gland bonnet 3 center bore inner walls central shaft O-ring seal 4 is arranged.Internal thread is arranged at the center pit top at steel cylinder gland bonnet 3; Steel cylinder gland bonnet 3 tops are fixed with cylinder bodily form central shaft seal pressure cap 2 through screw thread; Central shaft seal pressure cap 2 has center pit; The center pit of central shaft seal pressure cap 2 is passed in central shaft 11 upper ends, and the groove that connects the torsion gage part is arranged in the upper end of central shaft 11.Steel cylinder gland bonnet 3 center pits are passed in central shaft 11 lower ends.On steel cylinder gland bonnet 3 and a ring groove is being arranged, be placed with a resistant to elevated temperatures sealing gasket 5 in the groove with steel cylinder 9 contact portions.
Inner cylindrical portion comprises slurry tube 7 and test oar 6.Slurry tube 7 has the cylinder at the end for the cylinder bodily form, and slurry 7 internal diameter are 53mm, and length is 132mm, and internal volume is 240ml.Be fixed with a slurry cup geometrical clamp 14 below the steel cylinder gland bonnet 3, the fixing slurry tube 7 in slurry cup geometrical clamp 14 lower ends; Slurry tube 7 is fixed in the steel cylinder 9.At slurry tube 7 a test oar 6 is arranged, the structure of test oar 6 is on the wall of cylindrical bar, to be fixed with two-layer blade up and down, and every layer of blade is made up of two blades, and two blades outwards stretch from cylindrical bar symmetrically, and two-layer blade and cylindrical bar are as a whole.The upper end of cylindrical bar is connected with central shaft 11, and the bolt 13 of central shaft lower end links together the cylindrical bar at central shaft and blade center.
Between slurry tube 7 and the steel cylinder 9 is heat-conducting medium (water), and test oar 6 is hung vertically in the centre position in the slurry tube 7.
Claims (4)
1. a high temperature static is mixed a type stifled agent presetting period pick-up unit, comprises torsion gage part, urceolus part and inner cylindrical portion, it is characterized in that:
The torsion gage part: the top of torsion gage (1) is discoid handle; There is the torsion scale upper surface outer of discoid handle; In the bottom of discoid handle interior disk is arranged; The outer end of spiral spring steel disc is fixed on the discoid handle with the screw spiral spring steel disc that two is fixing between discoid handle and interior disk, to have one, and the inner of spiral spring steel disc is fixed with torsion pointer center-pole; The center pit of discoid handle is passed in torsion pointer center-pole upper end, and the upper end of torsion pointer center-pole is fixed with the torsion pointer; The inner of interior disk and spiral spring steel disc is fixed, and the lower plane center fixation of interior disk has connector;
Urceolus part: comprise central shaft seal pressure cap (2), steel cylinder gland bonnet (3), central shaft O-ring seal (4), steel cylinder (9), central shaft (11) and steel cylinder gland (12); There is steel cylinder (9) top exterior walls at the end that screw thread is arranged cylindrical; Steel cylinder gland (12) is through being threaded in the top of steel cylinder (9); Be stamped steel cylinder gland bonnet (3) in the bottom of steel cylinder gland (12) and in the upper end of steel cylinder (9); There is protruding hollow cylinder at the center, upper surface of steel cylinder gland bonnet (3), and hollow cylinder and steel cylinder gland bonnet are as a whole, and hollow cylinder is upward through steel cylinder gland (12) center pit; The hollow cylinder of steel cylinder gland bonnet (3) has center pit; A central shaft (11) is arranged in the center pit of steel cylinder gland bonnet (3); Between central shaft (11) and steel cylinder gland bonnet (3) center bore inner wall central shaft O-ring seal (4) is arranged, on the center pit top of steel cylinder gland bonnet (3) internal thread is arranged, steel cylinder gland bonnet (3) top is fixed with cylinder bodily form central shaft seal pressure cap (2) through screw thread; Central shaft seal pressure cap (2) has center pit; The center pit of central shaft seal pressure cap (2) is passed in central shaft (11) upper end, is connected with the connector of torsion gage part in the upper end of central shaft (11), and steel cylinder gland bonnet (3) center pit is passed in central shaft (11) lower end;
Inner cylindrical portion comprises slurry tube (7) and test oar (6), and slurry tube (7) has the cylinder at the end for the cylinder bodily form, is fixed with a slurry cup geometrical clamp (14) below the steel cylinder gland bonnet (3), and slurry glass geometrical clamp (14) is fixed the slurry tube (7) of lower end; Slurry tube (7) is fixed in the steel cylinder (9); In slurry tube (7), a test oar (6) is arranged; The structure of test oar (6) is on the wall of cylindrical bar, to be fixed with two-layer blade up and down, and every layer of blade is made up of two blades, and two blades are symmetrical; The upper end of cylindrical bar is connected with central shaft (11), and the bolt of central shaft lower end (13) links together the cylindrical bar at central shaft and blade center.
2. high temperature static according to claim 1 is mixed a type stifled agent presetting period pick-up unit, it is characterized in that: described steel cylinder gland bonnet (3) and steel cylinder gland (12) are one.
3. high temperature static according to claim 1 and 2 is mixed a type stifled agent presetting period pick-up unit; It is characterized in that: the connector of described torsion gage part is the cylinder bodily form; In the lower surface of connector is the circular cone inclined-plane; The protruding rectangle tongue piece in central upper portion position, circular cone inclined-plane, there is a Baltimore groove of laterally opening at central shaft (11) top along diametric(al), and the tongue-like pieces of circular cone inclined-plane upper lobes directly is inserted in central shaft (11) top to be had in the Baltimore groove.
4. high temperature static according to claim 1 and 2 is mixed a type stifled agent presetting period pick-up unit, it is characterized in that: on steel cylinder gland bonnet (3) and with steel cylinder (9) contact portion a ring groove being arranged, a sealing gasket (5) is arranged in the groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102914822A CN101975727B (en) | 2010-09-21 | 2010-09-21 | High-temperature static mixed plugging agent initial setting time detection device |
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| CN2010102914822A CN101975727B (en) | 2010-09-21 | 2010-09-21 | High-temperature static mixed plugging agent initial setting time detection device |
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| CN101975727A CN101975727A (en) | 2011-02-16 |
| CN101975727B true CN101975727B (en) | 2012-03-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103760328B (en) * | 2014-01-18 | 2015-09-02 | 太原理工大学 | The method of testing in a kind of fill paste slip presetting period and proving installation thereof |
| CN110320131B (en) * | 2019-07-10 | 2022-02-08 | 中国石油大学(华东) | Device and method for evaluating underground viscosity characteristic change of pH sensitive annular plugging agent |
| CN110967274B (en) * | 2019-12-12 | 2022-11-29 | 大连海事大学 | Comprehensive evaluation instrument for new mixing performance of cement-based material |
| CN112903533B (en) * | 2021-01-19 | 2023-05-26 | 永州红狮水泥有限公司 | Standard consistency safety monitoring system for cement building material production and monitoring method thereof |
| CN116983865B (en) * | 2023-09-28 | 2023-12-19 | 成都理工大学 | Thickening device and method for realizing uniform solidification of liquid and particle solidified plugging material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676873A (en) * | 2005-04-19 | 2005-10-05 | 西南石油学院 | High temperature high pressure oil well cement paste coagulation instrument and its coagulation time measuring method |
| CN101013125A (en) * | 2006-09-01 | 2007-08-08 | 中国水电顾问集团中南勘测设计研究院 | Fixing time detecting method for roller compacted concrete construction site |
| CN201810304U (en) * | 2010-09-21 | 2011-04-27 | 中国石油天然气股份有限公司 | High-temperature static mixed plugging agent initial setting time detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6997045B2 (en) * | 2003-12-19 | 2006-02-14 | W.R. Grace & Co.-Conn. | Rheomixer device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676873A (en) * | 2005-04-19 | 2005-10-05 | 西南石油学院 | High temperature high pressure oil well cement paste coagulation instrument and its coagulation time measuring method |
| CN101013125A (en) * | 2006-09-01 | 2007-08-08 | 中国水电顾问集团中南勘测设计研究院 | Fixing time detecting method for roller compacted concrete construction site |
| CN201810304U (en) * | 2010-09-21 | 2011-04-27 | 中国石油天然气股份有限公司 | High-temperature static mixed plugging agent initial setting time detection device |
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