CN107478807A - Plane heterogeneous model water invasion simulation experiment method and experiment device thereof - Google Patents
Plane heterogeneous model water invasion simulation experiment method and experiment device thereof Download PDFInfo
- Publication number
- CN107478807A CN107478807A CN201710778138.8A CN201710778138A CN107478807A CN 107478807 A CN107478807 A CN 107478807A CN 201710778138 A CN201710778138 A CN 201710778138A CN 107478807 A CN107478807 A CN 107478807A
- Authority
- CN
- China
- Prior art keywords
- pressure
- water
- core sample
- model
- gas
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 238000002474 experimental method Methods 0.000 title claims abstract description 61
- 230000009545 invasion Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004088 simulation Methods 0.000 title claims abstract description 24
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 11
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 83
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000011160 research Methods 0.000 abstract description 15
- 238000011161 development Methods 0.000 abstract description 11
- 238000009738 saturating Methods 0.000 abstract 2
- 230000018109 developmental process Effects 0.000 description 10
- 238000013459 approach Methods 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 235000014375 Curcuma Nutrition 0.000 description 1
- 244000164439 Curcuma angustifolia Species 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a water invasion simulation experiment method and an experiment device for a planar heterogeneous model, wherein the method comprises the following steps: selecting a heterogeneous core sample; filling a rock core sample into a rock core holder to form a model unit, placing at least four model units to form a planar heterogeneous model, and applying confining pressure to each model unit; saturating gas in the pores of each core sample by adopting a high-pressure gas source, and stopping the saturating gas and closing the gas source when the pore pressure of the core sample is balanced to a value required by an experiment; filling water into the intermediate container and pressurizing to the experiment preset pressure to form a simulated water body; communicating one end of each saturated gas core sample with a simulated water body; and (3) releasing gas in the pores of the core sample from the other end of the core sample through valve control, recording experiment parameters, and ending the experiment when the gas flow is zero. The experimental method and the experimental device thereof can reflect the real gas reservoir water invasion mechanism, realize the research on the gas reservoir plane heterogeneous model water invasion rule and provide a basis for the scientific development of the gas reservoir.
Description
Technical field
The present invention relates to oil-gas field development core experiment analysis technology, more particularly to a kind of plain heterogeneity model water enchroachment (invasion) mould
Draft experiment method and its experimental provision.
Background technology
Most gas reservoir developments show that the non-homogeneous water enchroachment (invasion) of plane can cause gas well deliverability and gas deposit recovery efficiency significantly to decline,
Turn into one of important risk factor for influenceing development effectiveness, therefore, need badly and strengthen water enchroachment (invasion) experimental study, disclose water-invasion mechanism,
Analysis prediction water enchroachment (invasion) risk, technical support is provided for the exploitation of gas reservoir control water.
The experimental method for carrying out gas reservoir water enchroachment (invasion) research at present mainly has microcosmic visual virtual design experimental method [Fan of low pressure
, Zhong Bing, Li Xiao equality slit formations production Gas Reservoirs water-invasion mechanism studies [J] natural gas geosciences, 2012,23 (6) in bosom] and
One-dimensional core physical simulation experimental method [Hu Yong；Li Xi Zhe；The fractured gas reservoirs water-invasion mechanism such as ten thousand radix curcumaes and exploitation is influenceed real
Test the phases of research [J] natural gas geosciences .2016 05].The microcosmic visual virtual design experimental method of low pressure is pressed due to experiment
Power is relatively low, and model be usually glass etching model and non-genuine gas reservoir rock core, therefore, it is difficult to reflect real gas reservoir
Water-invasion mechanism；One-dimensional core physical simulation experimental method is generally adopted by uniform soft soil base or Fracture-Pore model, it is difficult to anti-
Gas reservoir plain heterogeneity feature is reflected, therefore, needs badly and explores new experimental method and its device, research understanding gas reservoir plain heterogeneity
Model Water invasion rule, foundation is provided for gas reservoir scientific development.
Thus, the present inventor relies on experience and the practice for being engaged in relevant industries for many years, proposes a kind of plain heterogeneity model
Water enchroachment (invasion) analogue experiment method and its experimental provision, the defects of to overcome prior art.
The content of the invention
It is an object of the invention to provide a kind of plain heterogeneity model water enchroachment (invasion) analogue experiment method and its experimental provision, gram
Problems of the prior art are taken, the experimental method and its experimental provision can reflect real gas reservoir water-invasion mechanism, realize
Research to gas reservoir plain heterogeneity model water enchroachment (invasion) path, water enchroachment (invasion) speed, foundation is provided for gas reservoir scientific development.
The object of the present invention is achieved like this, a kind of plain heterogeneity model water enchroachment (invasion) analogue experiment method, including following
Step：
Step a, selection needs to carry out heterogeneous core sample of experiment test；
Step b, a core sample is loaded into a core holding unit and forms a model unit, level puts at least four models
After unit forms plain heterogeneity model, confined pressure is added to each model unit；
Step c, using high-pressure air source into the hole of each core sample saturated air, when core sample pore pressure balance
During to experiment desirable value, stop saturated air and close source of the gas；
Step d, load water in intermediate receptacle and be forced into experiment predetermined pressure, form simulation water body；
Step e, one end of the core sample of each saturated air is connected with simulation water body；
Step f, by Valve controlling, gas in the hole of core sample is discharged from the other end of core sample, records gas
When flow, water-carrying capacity, accumulative throughput, accumulative water-carrying capacity, gas pressure, experimental period and water breakthrough time to throughput are zero
Experiment terminates.
In the better embodiment of the present invention, in step a, the core sample is gas reservoir natural core.
In the better embodiment of the present invention, in step b, from it is at least four horizontal, circumferentially uniform intervals and
Axis forms plain heterogeneity model in model unit arranged in a crossed manner, and each core sample is air water close to one end of crossing center
Outlet, each core sample are air water entrance away from one end that the air water exports, and the middle part of each core holding unit sets confined pressure to connect
Port.
In the better embodiment of the present invention, in step b, the numerical value of the confined pressure is core sample in formation conditions
Under the overburden pressure born.
In the better embodiment of the present invention, in step c, the high-pressure air source is the air or nitrogen that high pressure is dried
Gas.
In the better embodiment of the present invention, in step d, the intermediate receptacle is the pressure-resistant 70Mpa of energy stainless steel
Container.
In the better embodiment of the present invention, in step f, record throughput, water-carrying capacity, add up throughput, add up
The frequency of water-carrying capacity and gas pressure for it is per minute once.
The purpose of the present invention can also be achieved in that the experiment for plain heterogeneity model water enchroachment (invasion) analogue experiment method fills
Put, the experimental provision includes plain heterogeneity model, and it is horizontal, circumferentially equal that the plain heterogeneity model includes at least four
Even interval and axis are in model unit arranged in a crossed manner, and the Axis Cross of each model unit forms crossing center, each described
Model unit includes a core holding unit, and heterogeneous core sample, each core sample are provided with the core holding unit
Product export close to one end of the crossing center for air water, and the pipeline in each air water exit intersects at the crossing center
Connection forms plain heterogeneity mold exit, and each core sample is air water entrance away from one end that the air water exports, respectively
The middle part of core holding unit sets confined pressure connected entrance；Each air water entrance can be with the high-pressure air source, the simulation water that are arranged in parallel
Body connect, it is described simulation water body by intermediate receptacle load water and be forced into experiment predetermined pressure form, the high-pressure air source and
First pressure sensor is serially connected between the simulation water body and each air water entrance, each confined pressure connected entrance can be with enclosing
Pressure device is connected, and second pressure sensor is serially connected between each confined pressure connected entrance and the confining pressure device；The plane is non-
Uniform soft soil base outlet can sequential communication moisture trap and gas flow meter, the plain heterogeneity mold exit and the air water
Concatenation is communicated with the 3rd pressure sensor between separator.
In the better embodiment of the present invention, the exit of the simulation water body sets the first valve, the high pressure
The exit of source of the gas sets the second valve, and each air water porch is sequentially set with inlet pressure transducer and inlet valve
Door, each air water exit are sequentially set with outlet pressure sensor and outlet valve, equal at each confined pressure connected entrance
Confined pressure valve is provided with, the 3rd valve is serially connected between the 3rd pressure sensor and the moisture trap.
In the better embodiment of the present invention, the confining pressure device is high pressure syringe pump, and the high pressure syringe pump is also
It can be connected with the high-pressure air source.
From the above mentioned, plain heterogeneity model water enchroachment (invasion) analogue experiment method and its experimental provision provided by the invention have such as
Lower beneficial effect：
In the plain heterogeneity model water enchroachment (invasion) analogue experiment method of the present invention, core sample is gas reservoir natural core, multiple
Core sample forms plain heterogeneity model by specific disposing way, the air water of each model unit in plain heterogeneity model
Entrance is at circumferential evenly spaced angle, and the gas of each model unit, the approach axis of water are different so as to gas reservoir
The research of natural core sample is more comprehensive, and experimental data is more true and reliable, so as to reflect real gas reservoir water enchroachment (invasion) machine
Reason, realizes the research to gas reservoir plain heterogeneity model Water invasion rule, foundation is provided for gas reservoir scientific development；The experiment of the present invention
The core holding unit used in device has high pressure resistant and high-temperature stability so that the pressure that core sample is born in experiment can
Reach the pressure in true gas reservoir；Pressure sensor is set on the experimental provision of the present invention, pressure is monitored in real time.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1：For the structural representation of the experimental provision of the present invention.
In figure：
100th, experimental provision；
1st, plain heterogeneity model；
10th, plain heterogeneity mold exit；
11st, model unit；111st, core holding unit；112nd, confined pressure connected entrance；
12nd, air water exports；
13rd, air water entrance；
2nd, high-pressure air source；
3rd, water body is simulated；31st, intermediate receptacle；
4th, confining pressure device；
5th, moisture trap；
6th, gas flowmeter；
71st, first pressure sensor；72nd, second pressure sensor；73rd, the 3rd pressure sensor；74th, inlet pressure senses
Device；75th, outlet pressure sensor；
81st, the first valve；82nd, the second valve；83rd, the 3rd valve；84th, inlet valve；85th, outlet valve；86th, confined pressure valve
Door.
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now control illustrates this hair
Bright embodiment.
The present invention provides a kind of plain heterogeneity model water enchroachment (invasion) analogue experiment method, comprises the following steps：
Step a, selection needs to carry out heterogeneous core sample of experiment test：
Core sample is gas reservoir natural core so that final experimental result can reflect real gas reservoir water-invasion mechanism；
In the specific embodiment of the present invention, the diameter of the cross section of core sample can be 2.5cm, 3.8cm or 10cm, and length is
10~20cm.
Step b, a core sample is loaded into a core holding unit and forms a model unit, level puts at least four models
After unit forms plain heterogeneity model, confined pressure is added to each model unit：
Specifically, formed from least four levels, circumferentially uniform intervals and axis in model unit arranged in a crossed manner
Plain heterogeneity model, each core sample export close to one end of crossing center for air water, and each core sample is away from the air water
One end of outlet is air water entrance, and the middle part of each core holding unit sets confined pressure connected entrance.Each model in plain heterogeneity model
The air water entrance of unit is at circumferential evenly spaced angle, and the gas of each model unit, the approach axis of water are different,
So that the research to core sample is more comprehensive, experimental data is more true and reliable.
Core holding unit should have high pressure resistant and high-temperature stability, in the specific embodiment of the present invention, rock core clamping
The maximum pressure of device is up to 70Mpa, and maximum temperature is up to 150 DEG C.
Confined pressure is added to be completed using prior art, in the present embodiment, it is to use computer controlled automatic to add confined pressure
High pressure syringe pump realizes supercharging (prior art) by compressing water in core holding unit annular space or gas, for wrapping up rock core
Core sample in clamper, the water or gas for adding confined pressure can only contact with the rubber sleeve (prior art) of core holding unit,
Can not directly it be contacted with the surface of core sample.The numerical value of confined pressure is the overlying rock pressure that core sample is born under formation conditions
Power (prior art, equal or close), its numerical value carry out calculating determination by depth of stratum residing for core sample and (calculated
Method is prior art), the size of confined pressure can automatically control, its numerical value can not with core sample pore pressure change and
Change.
Step c, using high-pressure air source into the hole of each core sample saturated air, when core sample pore pressure balance
During to experiment desirable value (simulation gas pressure), stop saturated air and close source of the gas：
Wherein, into the hole of core sample, saturated air is directed to fill gas in the hole of core sample, high-pressure air source
The air or nitrogen dried for high pressure, in the specific embodiment of the present invention, the maximum pressure of high-pressure air source is 70MPa；Hole
Gap pressure balance refers to that gas pressure is consistent in each position hole of core sample, and pore pressure size should be with goal in research block
Original gas pressure is close, and it is high-pressure air source is disconnected with core sample to close source of the gas, and core sample is in the pressure of Equilibrium
In Force system.
Step d, load water in intermediate receptacle and be forced into experiment predetermined pressure, form simulation water body：
Wherein, in the specific embodiment of the present invention, intermediate receptacle is the pressure-resistant 70Mpa of energy rustless steel container, middle
The volume of container can be 1000ml, 2000ml, 5000ml.In the specific embodiment of the present invention, load in intermediate receptacle
Water is simultaneously forced into 20MPa.
Step e, one end (i.e. air water entrance) of the core sample of each saturated air is connected with simulation water body；
Step f, by Valve controlling, out of, the other end (i.e. air water exports) release core sample of core sample hole
Gas, record throughput, water-carrying capacity, accumulative throughput, accumulative water-carrying capacity, gas pressure, experimental period and water breakthrough time, to gas
Experiment terminates when flow is zero：
Wherein, gas in the hole of core sample is discharged to refer to the intrapore gas of certain throughput release core sample
Body, the size of throughput are controlled by valve, record throughput, water-carrying capacity, accumulative throughput, the gentle lamination of accumulative water-carrying capacity
The frequency of power for it is per minute once, throughput, water-carrying capacity, accumulative throughput, accumulative water-carrying capacity, gas pressure, experimental period and
Water breakthrough time is experiment parameter necessary to plain heterogeneity model water enchroachment (invasion) simulation experiment study.
In the plain heterogeneity model water enchroachment (invasion) analogue experiment method of the present invention, core sample is gas reservoir natural core, plane
The air water entrance of each model unit is at circumferential evenly spaced angle in non-homogeneous model, gas, the water of each model unit
Approach axis it is different so that the research to gas reservoir natural core sample is more comprehensive, and experimental data is more true and reliable,
So as to reflect real gas reservoir water-invasion mechanism, the research to gas reservoir plain heterogeneity model Water invasion rule is realized, is gas reservoir
Scientific development provides foundation.
Filled as shown in figure 1, the present invention also provides a kind of experiment for plain heterogeneity model water enchroachment (invasion) analogue experiment method
100 are put, experimental provision 100 includes plain heterogeneity model 1, and it is horizontal, circumferentially equal that plain heterogeneity model 1 includes at least four
Even interval and axis are in model unit 11 arranged in a crossed manner, and the Axis Cross of each model unit 11 forms crossing center, each model
Unit 11 includes a core holding unit 111, and core holding unit 111 should have high pressure resistant and high-temperature stability, the one of the present invention
In specific embodiment, the maximum pressure of core holding unit 111 reaches 70Mpa, 150 DEG C of maximum temperature.Set in core holding unit 111
There is heterogeneous core sample, core sample is gas reservoir natural core so that final experimental result can reflect real gas
Hide water-invasion mechanism；Each core sample is air water outlet 12 close to one end of crossing center, and the pipeline at each air water outlet 12 is being handed over
Intersect connection at fork center and form plain heterogeneity mold exit 10, the one end of each core sample away from air water outlet 12 is air water
Entrance 13, the middle part of each core holding unit 111 set confined pressure connected entrance 112；Each air water entrance 13 can be with the height that is arranged in parallel
Pressurized air source 2, simulation water body 3 are connected, and simulation water body 3 is formed by loading water in intermediate receptacle 31 and being forced into experiment predetermined pressure,
First pressure sensor 71, each confined pressure connected entrance 112 are serially connected between high-pressure air source 2 and simulation water body 3 and each air water entrance 13
It can be connected with confining pressure device 4, second pressure sensor 72 is serially connected between each confined pressure connected entrance 112 and confining pressure device 4；Plane
Non-homogeneous model outlet 10 can the and gas flow meter 6 of sequential communication moisture trap 5, plain heterogeneity mold exit 10 and air water
Concatenation is communicated with the 3rd pressure sensor 73 between separator 5.In the experimental provision of the present invention, the rock core clamping of model unit 11
Be coated with gas reservoir natural core in device, in plain heterogeneity model 1 the air water entrance of each model unit 11 be in it is circumferential uniformly between
Every angle at, the gas of each model unit, the approach axis of water are different so that the research to gas reservoir natural core sample
More comprehensively, experimental data is more true and reliable, so as to reflect real gas reservoir water-invasion mechanism, realizes non-to gas reservoir plane
The research of uniform soft soil base Water invasion rule, foundation is provided for gas reservoir scientific development；The rock core folder used in the experimental provision of the present invention
Holder has high pressure resistant and high-temperature stability so that the pressure that core sample is born in experiment can reach the pressure in true gas reservoir
Power；Pressure sensor is set on the experimental provision of the present invention, pressure is monitored in real time.
Further, as shown in figure 1, the exit of simulation water body 3 sets the first valve 81, the exit of high-pressure air source 2 is set
The second valve 82 is put, inlet pressure transducer 74 and inlet valve 84 are sequentially set with each air water entrance 13, each air water goes out
Outlet pressure sensor 75 and outlet valve 85 are sequentially set with mouth 12, confined pressure is provided with each confined pressure connected entrance 112
Valve 86, the 3rd valve 83 is serially connected between the 3rd pressure sensor 73 and moisture trap 5.In this experimental provision, own
Connecting pipeline is high pressure resistant hollow pipeline.
Further, confining pressure device 4 is high pressure syringe pump (prior art), and high pressure syringe pump can also connect with high-pressure air source 2,
Increase pressure for high-pressure air source 2, in the specific embodiment of the present invention, the maximum pressure of high pressure syringe pump is 70MPa.
When experimental provision 100 carries out simulated experiment, core sample is fitted into composition model list in core holding unit 111 first
Member 11, by four model units 11 flatly, while axis forms plain heterogeneity model 1 in putting crosswise, complete
The assembling of 100 each instrument of experimental provision.Each confined pressure valve 86 is opened, remaining each valve is closed, by high pressure syringe pump to rock core
Core sample in clamper 111 adds confined pressure, simulates overlying rock (prior art) pressure, closes each confined pressure valve 86 afterwards,
The inlet valve 84 of the second valve 82 that high-pressure air source 2 exports and each model unit 11 is opened, by high-pressure air source 2 to core sample
The hole saturated air of product, simulates Gas Reservoir reset pressure, and the pressure at two ends of saturated air to core sample is balanced to test institute
When needing pressure, the second valve 82 is closed, core sample is disconnected with high-pressure air source 2, in the pressure system of itself；Centre is held
Load water in device 31 and be forced into form consistent with the pore pressure of core sample and simulate water body 3, open the first valve 81, make mould
Intend water body 3 to keep connecting with the gas-bearing formation of core sample, in same pressure system；Each outlet valve 85 is opened afterwards, passes through
Three valves 83 control throughput simulation gas well is exploited, and in whole experiment process, is passed through each pressure sensor and is carried out pressure monitoring, see
Examine and record the Water Invasion Characteristics during plain heterogeneity gas reservoir development.
From the above mentioned, plain heterogeneity model water enchroachment (invasion) analogue experiment method and its experimental provision provided by the invention have such as
Lower beneficial effect：
In the plain heterogeneity model water enchroachment (invasion) analogue experiment method of the present invention, core sample is gas reservoir natural core, multiple
Core sample forms plain heterogeneity model by specific disposing way, the air water of each model unit in plain heterogeneity model
Entrance is at circumferential evenly spaced angle, and the gas of each model unit, the approach axis of water are different so as to gas reservoir
The research of natural core sample is more comprehensive, and experimental data is more true and reliable, so as to reflect real gas reservoir water enchroachment (invasion) machine
Reason, realizes the research to gas reservoir plain heterogeneity model Water invasion rule, foundation is provided for gas reservoir scientific development；The experiment of the present invention
The core holding unit used in device has high pressure resistant and high-temperature stability so that the pressure that core sample is born in experiment can
Reach the pressure in true gas reservoir；Pressure sensor is set on the experimental provision of the present invention, pressure is monitored in real time.
The schematical embodiment of the present invention is the foregoing is only, is not limited to the scope of the present invention.It is any
Those skilled in the art, made equivalent variations and modification on the premise of the design of the present invention and principle is not departed from,
The scope of protection of the invention should be belonged to.
Claims (10)
1. a kind of plain heterogeneity model water enchroachment (invasion) analogue experiment method, it is characterised in that comprise the following steps：
Step a, selection needs to carry out heterogeneous core sample of experiment test；
Step b, a core sample is loaded into a core holding unit and forms a model unit, level puts at least four model units
After forming plain heterogeneity model, confined pressure is added to each model unit；
Step c, using high-pressure air source into the hole of each core sample saturated air, when the pore pressure of core sample is balanced to reality
When testing desirable value, stop saturated air and close source of the gas；
Step d, load water in intermediate receptacle and be forced into experiment predetermined pressure, form simulation water body；
Step e, one end of the core sample of each saturated air is connected with simulation water body；
Step f, by Valve controlling, the gas out of the other end release core sample of core sample hole, record throughput,
Experiment knot when water-carrying capacity, accumulative throughput, accumulative water-carrying capacity, gas pressure, experimental period and water breakthrough time to throughput are zero
Beam.
2. plain heterogeneity model water enchroachment (invasion) analogue experiment method as claimed in claim 1, it is characterised in that described in step a
Core sample is gas reservoir natural core.
3. plain heterogeneity model water enchroachment (invasion) analogue experiment method as claimed in claim 1, it is characterised in that in step b, select
At least four is horizontal, circumferentially uniform intervals and axis are in that model unit arranged in a crossed manner forms plain heterogeneity model, each rock
Heart sample exports close to one end of crossing center for air water, and each core sample enters away from one end that the air water exports for air water
Mouthful, the middle part of each core holding unit sets confined pressure connected entrance.
4. plain heterogeneity model water enchroachment (invasion) analogue experiment method as claimed in claim 1, it is characterised in that described in step b
The numerical value of confined pressure is the overburden pressure that core sample is born under formation conditions.
5. plain heterogeneity model water enchroachment (invasion) analogue experiment method as claimed in claim 1, it is characterised in that described in step c
High-pressure air source is the air or nitrogen that high pressure is dried.
6. plain heterogeneity model water enchroachment (invasion) analogue experiment method as claimed in claim 1, it is characterised in that described in step d
Intermediate receptacle is the pressure-resistant 70Mpa of energy rustless steel container.
7. plain heterogeneity model water enchroachment (invasion) analogue experiment method as claimed in claim 1, it is characterised in that in step f, record
Throughput, water-carrying capacity, accumulative throughput, the frequency of accumulative water-carrying capacity and gas pressure for it is per minute once.
8. it is used for the experimental provision of the plain heterogeneity model water enchroachment (invasion) analogue experiment method as described in any one of claim 1 to 7,
Characterized in that, the experimental provision includes plain heterogeneity model, the plain heterogeneity model include it is at least four horizontal,
Circumferentially uniform intervals and axis are in model unit arranged in a crossed manner, and the Axis Cross of each model unit is formed in intersection
The heart, each model unit include a core holding unit, heterogeneous core sample, each institute are provided with the core holding unit
State core sample to export for air water close to one end of the crossing center, the pipeline in each air water exit is in the intersection
Intersect connection at the heart and form plain heterogeneity mold exit, each core sample is air water away from one end that the air water exports
Entrance, the middle part of each core holding unit set confined pressure connected entrance；Each air water entrance can be arranged in parallel high-pressure air source,
Water body connection is simulated, the simulation water body is formed by loading water in intermediate receptacle and being forced into experiment predetermined pressure, the high pressure
First pressure sensor is serially connected between source of the gas and the simulation water body and each air water entrance, each confined pressure connected entrance is equal
It can be connected with confining pressure device, second pressure sensor is serially connected between each confined pressure connected entrance and the confining pressure device；It is described
Plain heterogeneity mold exit energy sequential communication moisture trap and gas flow meter, the plain heterogeneity mold exit and institute
Concatenation is communicated with the 3rd pressure sensor between stating moisture trap.
9. experimental provision as claimed in claim 8, it is characterised in that the exit of the simulation water body sets the first valve,
The exit of the high-pressure air source sets the second valve, each air water porch be sequentially set with inlet pressure transducer and
Inlet valve, each air water exit are sequentially set with outlet pressure sensor and outlet valve, each confined pressure connection
Confined pressure valve is provided with mouthful, the 3rd valve is serially connected between the 3rd pressure sensor and the moisture trap.
10. experimental provision as claimed in claim 9, it is characterised in that the confining pressure device is high pressure syringe pump, the high pressure
Syringe pump can also connect with the high-pressure air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778138.8A CN107478807A (en) | 2017-09-01 | 2017-09-01 | Plane heterogeneous model water invasion simulation experiment method and experiment device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778138.8A CN107478807A (en) | 2017-09-01 | 2017-09-01 | Plane heterogeneous model water invasion simulation experiment method and experiment device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107478807A true CN107478807A (en) | 2017-12-15 |
Family
ID=60603307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710778138.8A Pending CN107478807A (en) | 2017-09-01 | 2017-09-01 | Plane heterogeneous model water invasion simulation experiment method and experiment device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107478807A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344853A (en) * | 2018-01-24 | 2018-07-31 | 西南石油大学 | Plane heterogeneity constant volume dry gas reservoir straight well absolute open flow (AOF) test method |
| CN109307755A (en) * | 2018-10-25 | 2019-02-05 | 中国石油天然气股份有限公司 | Physical simulation experiment device and method for gas reservoir water invasion and water drainage gas production |
| CN111594159A (en) * | 2020-06-12 | 2020-08-28 | 西南石油大学 | Device and method for testing flow line distribution in seepage process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793137A (en) * | 2010-01-29 | 2010-08-04 | 西南石油大学 | Oil-water displacement efficiency experimental method of longitudinal and planar nonhomogeneous slab models |
| CN102830214A (en) * | 2012-08-15 | 2012-12-19 | 中国石油天然气股份有限公司 | Dynamic physical simulation experiment method and device for water invasion of fractured bottom water gas reservoir |
| CN104675394A (en) * | 2015-01-22 | 2015-06-03 | 西南石油大学 | Three-dimensional physical simulation experimental apparatus of heterogeneous bottom-water reservoir and saturation determining method thereof |
| CN105715239A (en) * | 2016-01-22 | 2016-06-29 | 中国石油大学(华东) | Visual nanometer magnetofluid panel oil displacement experiment device and experiment method |
| CN205422664U (en) * | 2016-03-25 | 2016-08-03 | 贵州师范学院 | Three -dimensional exploration seepage flow physical model system in plane and fore -and -aft oil field |
-
2017
- 2017-09-01 CN CN201710778138.8A patent/CN107478807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793137A (en) * | 2010-01-29 | 2010-08-04 | 西南石油大学 | Oil-water displacement efficiency experimental method of longitudinal and planar nonhomogeneous slab models |
| CN102830214A (en) * | 2012-08-15 | 2012-12-19 | 中国石油天然气股份有限公司 | Dynamic physical simulation experiment method and device for water invasion of fractured bottom water gas reservoir |
| CN104675394A (en) * | 2015-01-22 | 2015-06-03 | 西南石油大学 | Three-dimensional physical simulation experimental apparatus of heterogeneous bottom-water reservoir and saturation determining method thereof |
| CN105715239A (en) * | 2016-01-22 | 2016-06-29 | 中国石油大学(华东) | Visual nanometer magnetofluid panel oil displacement experiment device and experiment method |
| CN205422664U (en) * | 2016-03-25 | 2016-08-03 | 贵州师范学院 | Three -dimensional exploration seepage flow physical model system in plane and fore -and -aft oil field |
Non-Patent Citations (1)
| Title |
|---|
| 胡勇，等: "低渗气藏储层孔隙中水的赋存模式及对气藏开发的影响", 《天然气地球科学》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344853A (en) * | 2018-01-24 | 2018-07-31 | 西南石油大学 | Plane heterogeneity constant volume dry gas reservoir straight well absolute open flow (AOF) test method |
| CN109307755A (en) * | 2018-10-25 | 2019-02-05 | 中国石油天然气股份有限公司 | Physical simulation experiment device and method for gas reservoir water invasion and water drainage gas production |
| CN109307755B (en) * | 2018-10-25 | 2021-06-01 | 中国石油天然气股份有限公司 | Physical simulation experiment device and method for gas reservoir water invasion and water drainage gas production |
| US11353442B2 (en) * | 2018-10-25 | 2022-06-07 | Petrochina Company Limited | Physical simulation experimental device and method for water invasion and drainage gas recovery in gas reservoirs |
| CN111594159A (en) * | 2020-06-12 | 2020-08-28 | 西南石油大学 | Device and method for testing flow line distribution in seepage process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110470585B (en) | Experimental test device and method for shale dynamic imbibition capacity | |
| CN105239973B (en) | Condensate gas reservoir blocking removal physical simulation experiment device and experiment method thereof | |
| CN104713802B (en) | A kind of shale gas reservoir gassiness weight testing method | |
| CN106525690A (en) | Method for measuring gas-water relative permeability curve by tight sandstone steady-state method | |
| CN107478807A (en) | Plane heterogeneous model water invasion simulation experiment method and experiment device thereof | |
| CN207263565U (en) | A kind of multifunctional coal/shale extra-high absorption and Seepage Experiment evaluating apparatus | |
| CN106596377A (en) | Sealed shale gas flow testing method and device | |
| CN104390883A (en) | Novel adsorption and desorption experiment device and novel adsorption and desorption experiment method | |
| CN209485936U (en) | A kind of automatic rock core hole infiltration translocation device | |
| CN109975140A (en) | Supercritical carbon dioxide pulse fracturing and permeability testing integrated experimental device and method | |
| CN107762482A (en) | A kind of rock fracture seepage flow underground heat exploits simulation system | |
| CN114482969B (en) | Experimental device for simulating stewing fracturing fluid flowback of multistage fracturing in unequal time | |
| CN109946215A (en) | A kind of original position coal body gas absorption amount test simulator | |
| CN108179999A (en) | Compare the method and apparatus in carbon dioxide-foam flooding displacement stage | |
| CN107121354A (en) | A kind of device and its application method for testing Karst grouting material dispersion resistance matter under water | |
| CN109101046A (en) | Gas flow control system for gas storage physical simulation injection and production | |
| CN103114851B (en) | Different cranny development coal seams aerogenesis contribution capacity of water testing arrangement | |
| CN106442253B (en) | Method and device for evaluating artificial crack wall compaction damage caused by proppant embedding | |
| CN109854235B (en) | Oil and gas reservoir failure and huff and puff exploitation simulator | |
| CN112986091B (en) | Resistivity test-based oil saturation evaluation method for bedding joint development shale | |
| CN105717255B (en) | Composite solvent soaking huff-puff circulation experiment device and simulated mining method | |
| CN108240957A (en) | The measuring method and device of a kind of dynamic characteristics | |
| CN203097887U (en) | Device for testing gas production contribution ability of coal bed with different fracture development degrees | |
| CN105372405B (en) | Reservoir gas supply capacity detection system and use method | |
| CN112377169B (en) | System and method for simulating injection and production sand of gas storage well |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171215 |