CN106814018A - A kind of tight rock gas phase relative permeability measurement apparatus and method - Google Patents

A kind of tight rock gas phase relative permeability measurement apparatus and method Download PDF

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Publication number
CN106814018A
CN106814018A CN201710039784.2A CN201710039784A CN106814018A CN 106814018 A CN106814018 A CN 106814018A CN 201710039784 A CN201710039784 A CN 201710039784A CN 106814018 A CN106814018 A CN 106814018A
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China
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valve
pressure
volume
variable
upstream
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CN201710039784.2A
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Chinese (zh)
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郑玲丽
胡鹏轩
李闽
赵金洲
肖文联
魏铭江
任席瑶
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西南石油大学
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Priority to CN201710039784.2A priority Critical patent/CN106814018A/en
Publication of CN106814018A publication Critical patent/CN106814018A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/0806Details, e.g. sample holders, mounting samples for testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample
    • G01N15/0826Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change

Abstract

The invention discloses a kind of tight rock gas phase relative permeability measurement apparatus, it includes:Core holding unit, confined pressure pump, variable-volume upstream pressure room, variable-volume downstream pressure room, high-pressure air source, console and NMR;The gas outlet of the high-pressure air source passes sequentially through valve a, first pressure controller and valve b and is connected with the import of variable-volume upstream pressure room, and the outlet of variable-volume upstream pressure room is connected by valve c with core holding unit;Core holding unit is connected by valve d with the import of variable-volume downstream pressure room, and the outlet of variable-volume downstream pressure room is connected by valve f with pressure relief opening;Core holding unit is arranged on inside the measurement chamber of NMR.The present invention provides a set of measuring method based on this measurement apparatus simultaneously.The present invention has the beneficial effect of the gas relative permeability that can quickly and efficiently measure tight rock.

Description

A kind of tight rock gas phase relative permeability measurement apparatus and method

Technical field

The present invention relates to a kind of tight rock gas phase relative permeability measurement apparatus and measuring method, belong to gas phase to oozing Saturating rate fields of measurement.

Background technology

The natural gas resources of hypotonic compact reservoir occupy very big ratio in China's geological resource reserves.Accurate Determining Calculating, dynamic analysis, numerical value of the physical property (such as gas phase relative permeability) of such reservoir rock to reservoir gas well yield Simulation etc. is extremely important, but is difficult Accurate Determining tight rock gas water relative permeability at present.

The test of existing gas water relative permeability laboratory experiment is both referred to GB/T 28912-2012 (two phase flows in rock Body phase is to permeability determination method), i.e., gas water relative permeability is determined with two methods of steady state method and cold store enclosure.Stable state Method is that gas water is at the uniform velocity injected into rock sample in certain flow ratio, until rock sample imports and exports pressure at two ends and the gas water for passing through rock sample Flow reaches stabilization, and the water saturation of rock sample is when also no longer changing, and effectively infiltration is directly calculated by Darcy formula Rate and relative permeability;The method is adapted to the rock (easily reaching stabilization) of good penetrability, for tight rock due to stabilization Time is oversize and invalid.

But, the measure of the gas water relative permeability of hypotonic tight rock is typically using in standard GB/T28912-2012 Cold store enclosure, be first to use water saturation test sample, with certain pressure or flow velocity injection gas displacement saturation water rock sample, note Record displacement pressure, aquifer yield and gas production change with time relation, wherein paying special attention to observation and the note of water breakthrough time node Record, and then calculate gas water relative permeability with J.B.N methods;Although the method shortens the testing time, improves test effect Rate, however but have ignored capillary pressure influence (in compact reservoir capillarity very protrusion (refers to:capillary Pressure and permeability relationships in tight gas sands [Wells etc., 1985]), and Influence to gas water relative permeability is notable), the determination of water breakthrough time node in addition often exists delayed, and these all make to bring about the desired sensation/ Effective measure of water relative permeability can not be guaranteed.

The content of the invention

Regarding to the issue above and not enough, the technical problems to be solved by the invention are:How to provide a kind of in consideration hollow billet Gas relative permeability can be quickly measured in the case of the effect of pressure, typical measuring arrangements and its measuring method can be reduced again The gas phase relative permeability measurement apparatus of human error are easily caused due to complex steps.

The present invention provides a set of measuring method based on this measurement apparatus simultaneously.

In order to solve the above problems, present invention employs following technical scheme.

A kind of tight rock gas phase relative permeability measurement apparatus, it includes:Core holding unit, confined pressure pump, variable-volume Upstream pressure room, variable-volume downstream pressure room, high-pressure air source, console and NMR;The core holding unit is built-in Rock core is loaded with, core holding unit is provided with thermometer;

The gas outlet of the high-pressure air source passes sequentially through valve a, first pressure controller and valve b and variable-volume upstream The import of balancing gate pit is connected, and the outlet of the variable-volume upstream pressure room passes through the front end phase of valve c and core holding unit Connection;The rear end of core holding unit is connected by valve d with the import of variable-volume downstream pressure room, under the variable-volume The outlet for swimming balancing gate pit is connected by valve f with pressure relief opening;The rear end of core holding unit is connected by valve e with discharge outlet Connect;The gas outlet of confined pressure pump passes sequentially through valve g and second pressure controller is connected with the front end of core holding unit;

Valve h is provided between the import of the front end of the core holding unit and the variable-volume downstream pressure room;

Upstream pressure sensor P1 for monitoring variable-volume upstream pressure chamber pressure force value is electrically connected with console;For The downstream pressure sensor P2 for monitoring variable-volume downstream pressure chamber pressure force value is electrically connected with console;The variable-volume upstream Differential pressure pickup, the differential pressure pickup are provided between the outlet and the import of the variable-volume downstream pressure room of balancing gate pit Electrically connected with console;The thermometer is electrically connected with console.

Further, the core holding unit is arranged on inside the measurement chamber of NMR.

A kind of tight rock gas phase relative permeability measuring method, it is comprised the following steps:

S1, the rock core of drying is put into core holding unit, opens valve g, apply the confined pressure of setting to rock core with confined pressure pump Afterwards, the volume of variable-volume upstream pressure room and variable-volume downstream pressure room is adjusted to match with rock sample pore volume Value, opens valve h, valve d, valve c, valve a and valve b, closes valve e and valve f, and pressure in system is applied into design Value Pm, after after system stabilization, valve b, valve a, valve c and valve h are closed, stay open valve d;

S2, opening valve a and valve b, a pulse is applied to variable-volume upstream pressure room, when variable-volume upstream pressure When power chamber pressure rises and reaches the pressure for setting, valve a and valve b is closed, treat that variable-volume upstream pressure chamber pressure is steady Regularly, valve c is opened, until variable-volume upstream pressure chamber pressure and variable-volume downstream pressure chamber pressure tend towards stability When, stop experiment;

Computer on S3, console collects variable-volume upstream pressure chamber pressure force value P by data collecting card1、 Variable-volume downstream pressure chamber pressure force value P2, upstream and downstream pressure differential △ P and temperature t, draw upstream and downstream pressure differential △ P and time Relation curve, and calculate slope1

Calculated according to formula 1:Before saturation water, internal pressure PmUnder absolute permeability kab

Wherein, α1Dimension be s-1;μ is the viscosity of gas, dimension mPas;L is rock sample length, dimension cm;fzBe with The related coefficient of nitrogen property, dimensionless;A is the sectional area of rock sample, dimension cm2;PmIt is pore pressure, dimension MPa;V1It is rock The upstream water tank and pipeline of sample upstream, the cumulative volume of valve, dimension cm3;V2Be the water tank and pipeline in rock sample downstream, valve it is total Volume, dimension cm3;kabIt is absolute permeability;

S4, from core holding unit will rock core take out and saturation water after rock core is put back in core holding unit again, open nuclear-magnetism Resonance instrument checks that rock core includes the water saturation whether water volume reaches saturation requirement and real-time monitored rock core, close valve d, Valve f and valve h, corresponding displacement pressure difference is chosen with reference to the rock core air water capillary pressure curve, opens valve valve e, valve C, valve b and valve a, with nitrogen flooding for the water in rock core, when observing that water saturation reaches preset value from NMR During β %, close valve e, open valve d, valve f and valve h, repeat step S1-S3, draw upstream and downstream pressure differential △ P and when Between relation curve, and calculate slope2

Calculated according to formula 2:When water saturation is β % in rock core, internal pressure PmUnder permeability kap

Wherein, α2Dimension be s-1;kapIt is apparent permeability;

Gas relative permeability k is drawn according to formula 3r

S5, continuation nitrogen flooding repeat S4, and can obtain difference according to formula 1, formula 2 and formula 3 for the water in rock core Gas phase permeability under water saturation.

The present invention has the advantages that:(1) the stable flow velocity of flow in low permeability core is measured without devoting a tremendous amount of time; (2) gas phase permeability under multiple saturation degrees can in a short time be obtained;(3) stability of real-time monitoring and decision-making system, and Help adjusts testing scheme and test process, and the presence of system and human error is avoided as far as possible.(4) hollow billet is considered in measurement process The effect of pressure so that effective measure of gas water relative permeability is guaranteed.

In sum, the present invention is with the beneficial of the gas relative permeability that can quickly and efficiently measure tight rock Effect.

Brief description of the drawings

Fig. 1 is structural representation of the invention.

In figure, 1- valves a, 2- valve b, 3- valve c, 4- valve d, 5- valve e, 6- valve f, 7- valve g, 8- valve h, 9- confined pressure pumps, 10- pressure controllers 1,11- pressure controllers 2,12- differential pressure pickups, 13- upstream pressure sensors, under 14- Trip pressure sensor, 15- thermometers, 16- discharge outlet, 17- pressure relief openings, 18- core holding units, 19- NMRs, 20- can Variable volume upstream pressure room, 21- variable-volume downstream pressures room, 22- consoles, 23- high-pressure air sources.

Specific embodiment

As shown in Figure 1:The present invention is the device that a kind of cold store enclosure surveys gas relative permeability, and apparatus structure feature is such as Under:It is main by core holding unit 18, confined pressure pump 9, variable-volume upstream pressure room 20, variable-volume downstream pressure room 21, height Pressurized air source 23, console 22 and NMR 19 are constituted;

The present invention can be used to measure gas phase relative permeability and gas phase phase in gas water two phase fluid flow in oil/gas two phase fluid flow To permeability, illustrated by gas phase relative permeability in gas water two phase fluid flow below.

The rock core for testing is mounted with core holding unit 18, core holding unit is provided with thermometer.On variable-volume Trip balancing gate pit 20 and the equal adjustable volume size in variable-volume downstream pressure room 21, and the volume of variable-volume upstream pressure room 20 More than variable-volume downstream pressure room 21, because the combination of upstream and downstream volume is different, can make total time that pressure pulse is propagated and The overall presure drop that can be produced is had any different, therefore uses adjustable balancing gate pit, according to the different volume ratio in upstream and downstream balancing gate pit, with reference to Actual conditions can more accurately measure the gas permeability under this saturation degree.

The gas outlet of high-pressure air source 23 is connected by valve a1 with the entrance of first pressure controller 10, first pressure control The outlet of device processed 10 is connected by valve b2 with the import of variable-volume upstream pressure room 20, variable-volume upstream pressure room 20 Outlet be connected with the front end of core holding unit 18 by valve c3, the rear end of core holding unit 18 by valve d4 with it is variable The import of volume downstream pressure room 21 is connected, and the outlet of variable-volume downstream pressure room 21 passes through valve f6 and the phase of pressure relief opening 17 Connection;The rear end of core holding unit 18 is connected by valve e5 with discharge outlet 16;The gas outlet of confined pressure pump 9 passes sequentially through valve G7 and second pressure controller 11 are connected with the front end of core holding unit 18;Under the front end of core holding unit 18 and variable-volume Valve h8 is provided between the import for swimming balancing gate pit 21;Upstream pressure for monitoring variable-volume upstream pressure chamber pressure force value is passed Sensor P113 is electrically connected with console 22;Downstream pressure sensor P214 for monitoring variable-volume downstream pressure chamber pressure force value Electrically connected with console 22;The import of the outlet of variable-volume upstream pressure room 20 and the variable-volume downstream pressure room 21 it Between be provided with differential pressure pickup 12, differential pressure pickup 12 is electrically connected with console 22;Thermometer 15 is electrically connected with console 22.

The present invention realizes measurement with pressure pulse method, and its measuring principle is as follows:Gas phase is determined to oozing with pressure pulse method Saturating rate, first applies a certain amount of pulse to rock upstream, makes gas in rock interior one dimensional fluid flow, and upstream pressure reduces, downstream Pressure increases, can with pressure differential to rock upstream and downstream and time relation curve and data.Based on Darcy's law and gas The continuity equation of body, can obtain the numerical solution of the diffusion equation of gas;Transient state arteries and veins is explained with the numerical solution of diffusion equation The experimental data that the method for punching is obtained, obtains the absolute permeability of the permeability of rock, i.e. rock.Rock will be put into after rock saturation water again In heart clamp holder, nitrogen driven water-replacing is monitored with nuclear magnetic resonance device, now form the water saturation of β %, it is assumed that water is in an experiment Will not move, a certain amount of pulse, the pressure differential of the rock upstream and downstream under available this water saturation and time are applied to upstream Relation curve and data, and then the gas phase permeability of the permeability under this gas saturation, i.e. rock can be obtained, gas phase It is as follows to computing permeability formula:

Wherein:α is the slope for being fitted pressure differential and time relationship respectively twice, dimension s-1.μ is the viscosity of gas, dimension mPa·s.L is rock sample length, dimension cm.fzIt is the coefficient related to nitrogen property, dimensionless.A is the sectional area of rock sample, amount Guiding principle cm2。pmIt is pore pressure, dimension mPa.V1It is upstream water tank and pipeline, the cumulative volume of valve of rock sample upstream, dimension cm3。V2 It is water tank and pipeline, the cumulative volume of valve in rock sample downstream, dimension cm3。kabIt is absolute permeability.kapIt is gas phase permeability.kr It is gas relative permeability.

The foundation of water saturation:The air water capillary pressure curve of the rock sample is measured, different hairs are chosen according to this from small to large Pipe pressure, each capillary pressure one water saturation β % of correspondence, gas phase under each saturation degree that just measurement is chosen in an experiment Permeability.Each saturation degree one capillary pressure of correspondence, then the size of pulse is that the selection of △ P just has on one in an experiment Limit, the pressure difference △ p and upper, variable-volume come in contrived experiment by the pressure chosen in the size and capillary pressure curve of porosity The volume of downstream pressure room.

Core holding unit is placed in the instrument of nuclear magnetic resonance, state of the whole core holding unit all in hydrogen-free.

Cumulative volume V in determination upstream before test1With downstream cumulative volume V2

The specific method that pressure pulse surveys gas relative permeability is divided into following steps:

S1, the rock core of drying is put into core holding unit, opens valve g7, applying setting to rock core with confined pressure pump 9 encloses After pressure, by variable-volume upstream pressure room 20 and variable-volume downstream pressure room 21 be adjusted to most suitable volume size (namely It is the value matched with rock sample pore volume), open valve h8, valve d4, valve c3, valve a1, valve b2, closing valve E5, valve f6, design load P is applied to by pressure in systemm, after after system stabilization (about two hours), close valve b2, valve A1, valve c3 and valve h8, stay open valve d4;

S2, opening valve a1 and valve b2, apply a pulse, when on variable-volume to variable-volume upstream pressure room 20 When trip pressure chamber pressure rises and reaches the pressure for setting, valve a1 and valve b2 is closed, treat variable-volume upstream pressure room During pressure stability, valve c3 is opened, until variable-volume upstream pressure chamber pressure and variable-volume downstream pressure chamber pressure become When stablizing, stop experiment;

Computer on S3, console collects variable-volume upstream pressure chamber pressure force value P by data collecting card1、 Variable-volume downstream pressure chamber pressure force value P2, upstream and downstream pressure differential △ P and temperature t, draw upstream and downstream pressure differential △ P and time Relation curve, and calculate slope1

Calculated according to formula 1:Before saturation water, internal pressure PmUnder absolute permeability kab

Wherein, α1Dimension be s-1;μ is the viscosity of gas, dimension mPas;L is rock sample length, dimension cm;fzBe with The related coefficient of nitrogen property, dimensionless;A is the sectional area of rock sample, dimension cm2;PmIt is pore pressure, dimension MPa;V1It is rock The upstream water tank and pipeline of sample upstream, the cumulative volume of valve, dimension cm3;V2Be the water tank and pipeline in rock sample downstream, valve it is total Volume, dimension cm3;kabIt is absolute permeability;

S4, from core holding unit by rock core take out and saturation water (with reference to GB/T 28912-2012) afterwards again put back to rock core press from both sides In holder 18, open NMR 19 and check that rock core includes whether water volume reaches saturation requirement and real-time monitored rock core contains Water saturation, closes valve d4, valve f6 and valve h8, and corresponding displacement pressure is chosen with reference to the rock core air water capillary pressure curve Difference, opens valve e5, valve c3, valve b2 and valve a1, with nitrogen flooding for the water in rock core, when the observation from NMR When reaching preset value β % to water saturation, valve e5 is closed, opens valve d4, valve f6 and valve h8, repeat step S1-S3, The relation curve of upstream and downstream pressure differential △ P and time is drawn, and calculates slope2

Calculated according to formula 2:When water saturation is β % in rock core, internal pressure PmUnder permeability kap

Wherein, α2Dimension be s-1;kapIt is apparent permeability;

Gas relative permeability k is drawn according to formula 3r

S5, continuation nitrogen flooding repeat S4, and can obtain difference according to formula 1, formula 2 and formula 3 for the water in rock core Gas phase permeability under water saturation.

Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this In the middle of the right of invention.

Claims (3)

1. a kind of tight rock gas phase relative permeability measurement apparatus, it is characterised in that including:Core holding unit (18), confined pressure Pump (9), variable-volume upstream pressure room (20), variable-volume downstream pressure room (21), high-pressure air source (23) and console (22); Rock core is mounted with the core holding unit (18), core holding unit (18) is provided with thermometer (15);
The gas outlet of the high-pressure air source (23) pass sequentially through valve a (1), first pressure controller (10) and valve b (2) with can The import of variable volume upstream pressure room (20) is connected, and the outlet of the variable-volume upstream pressure room (20) passes through valve c (3) Front end with core holding unit (18) is connected;Pressed with variable-volume downstream by valve d (4) rear end of core holding unit (18) The import of power room (21) is connected, and the outlet of the variable-volume downstream pressure room (21) is by valve f (6) and pressure relief opening (17) It is connected;The rear end of core holding unit (18) is connected by valve e (5) with discharge outlet (16);The outlet of confined pressure pump (9) is successively It is connected with the front end of core holding unit (18) by valve g (7) and second pressure controller (11);
Valve h is provided between the front end of the core holding unit (18) and the import of the variable-volume downstream pressure room (21) (8);
Upstream pressure sensor P1 (13) for monitoring variable-volume upstream pressure chamber pressure force value is electrically connected with console (22); Downstream pressure sensor P2 (14) for monitoring variable-volume downstream pressure chamber pressure force value is electrically connected with console (22);It is described Pressure difference is provided between the outlet of variable-volume upstream pressure room (20) and the import of the variable-volume downstream pressure room (21) Sensor (12), the differential pressure pickup (12) electrically connects with console (22);The thermometer (15) and console (22) electricity Connection.
2. gas phase relative permeability measurement apparatus in a kind of tight rock according to claim 1, it is characterised in that described Core holding unit (18) is arranged on inside the measurement chamber of NMR (19).
3. a kind of tight rock gas phase relative permeability measuring method, it is characterised in that it is comprised the following steps:
S1, the rock core of drying is put into core holding unit, opens valve g (7), applying setting to rock core with confined pressure pump (9) encloses After pressure, the volume of variable-volume upstream pressure room (20) and variable-volume downstream pressure room (21) is adjusted to and rock sample pore-body The value that matches of product, opens valve h (8), valve d (4), valve c (3), valve a (1) and valve b (2), closing valve e (5) and Valve f (6), design load P is applied to by pressure in systemm, after after system stabilization, close valve b (2), valve a (1), valve c (3) and valve h (8), valve d (4) is stayed open;
S2, opening valve a (1) and valve b (2), a pulse is applied to variable-volume upstream pressure room (20), works as variable-volume When upstream pressure chamber pressure rises and reaches the pressure for setting, valve a (1) and valve b (2) are closed, treat variable-volume upstream During balancing gate pit's pressure stability, valve c (3) is opened, until variable-volume upstream pressure chamber pressure and variable-volume downstream pressure room When pressure tends towards stability, stop experiment;
Computer on S3, console collects variable-volume upstream pressure chamber pressure force value P by data collecting card1, can variant Product downstream pressure chamber pressure force value P2, upstream and downstream pressure differential △ P and temperature t, show that the relation of upstream and downstream pressure differential △ P and time is bent Line, and calculate slope1
Calculated according to formula 1:Before saturation water, internal pressure PmUnder absolute permeability kab
Wherein, α1Dimension be s-1;μ is the viscosity of gas, dimension mPas;L is rock sample length, dimension cm;fzIt is and nitrogen The coefficient of qualitative correlation, dimensionless;A is the sectional area of rock sample, dimension cm2;PmIt is pore pressure, dimension MPa;V1It is rock sample upstream Upstream water tank and pipeline, the cumulative volume of valve, dimension cm3;V2It is water tank and pipeline, the cumulative volume of valve in rock sample downstream, amount Guiding principle cm3;kabIt is absolute permeability;
S4, rock core is taken out and again puts back in core holding unit (18) rock core after saturation water from core holding unit, open nuclear-magnetism Resonance instrument (19) checks that rock core includes the water saturation whether water volume reaches saturation requirement and real-time monitored rock core, shutoff valve Door d (4), valve f (6) and valve h (8), corresponding displacement pressure difference is chosen with reference to the rock core air water capillary pressure curve, opens valve Gate valve door e (5), valve c (3), valve b (2) and valve a (1), with nitrogen flooding for the water in rock core, when from NMR It was observed that when water saturation reaches preset value β %, closing valve e (5), valve d (4), valve f (6) and valve h (8), weight are opened Multiple step S1-S3, draws the relation curve of upstream and downstream pressure differential △ P and time, and calculate slope2
Calculated according to formula 2:When water saturation is β % in rock core, internal pressure PmUnder permeability kap
Wherein, α2Dimension be s-1;kapIt is apparent permeability;
Gas relative permeability k is drawn according to formula 3r
S5, continuation nitrogen flooding repeat S4 for the water in rock core, and it is full to can obtain different water according to formula 1, formula 2 and formula 3 With the gas phase permeability under degree.
CN201710039784.2A 2017-01-18 2017-01-18 A kind of tight rock gas phase relative permeability measurement apparatus and method CN106814018A (en)

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CN107703037A (en) * 2017-08-30 2018-02-16 中国石油天然气股份有限公司 For HTHP Natural Gas Migration And Accumulation visual detection device and method
CN108088778A (en) * 2017-12-06 2018-05-29 中国科学院武汉岩土力学研究所 A kind of rock type materials permeability, porosity testing device
CN108414419A (en) * 2018-01-31 2018-08-17 中国矿业大学 A kind of test of three-axis penetration rate and CO2Displacement simulation experimental rig
CN108414727A (en) * 2018-01-31 2018-08-17 中国矿业大学 A kind of CO2Displacement simulation test method
CN108414418A (en) * 2018-01-31 2018-08-17 中国矿业大学 A kind of three-axis penetration rate test method
CN108717036A (en) * 2018-05-18 2018-10-30 西南石油大学 The experimental evaluation method of dynamic phase percolation curve during a kind of reservoir water
CN109342287A (en) * 2018-10-25 2019-02-15 中国石油天然气股份有限公司 A kind of determination method of air water stable percolation
CN109470616A (en) * 2018-10-31 2019-03-15 重庆大学 Rock multifunction seepage test macro
CN109884726A (en) * 2019-03-07 2019-06-14 中国石油大学(北京) The gas breakthrough time prediction technique and device of gas-drive pool
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CN110702586A (en) * 2019-11-05 2020-01-17 清华大学 Method and device for measuring permeability of rock core

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107703037A (en) * 2017-08-30 2018-02-16 中国石油天然气股份有限公司 For HTHP Natural Gas Migration And Accumulation visual detection device and method
CN108088778A (en) * 2017-12-06 2018-05-29 中国科学院武汉岩土力学研究所 A kind of rock type materials permeability, porosity testing device
CN108414419A (en) * 2018-01-31 2018-08-17 中国矿业大学 A kind of test of three-axis penetration rate and CO2Displacement simulation experimental rig
CN108414727A (en) * 2018-01-31 2018-08-17 中国矿业大学 A kind of CO2Displacement simulation test method
CN108414418A (en) * 2018-01-31 2018-08-17 中国矿业大学 A kind of three-axis penetration rate test method
CN108414418B (en) * 2018-01-31 2020-08-25 中国矿业大学 Triaxial permeability testing method
CN108717036A (en) * 2018-05-18 2018-10-30 西南石油大学 The experimental evaluation method of dynamic phase percolation curve during a kind of reservoir water
CN109342287A (en) * 2018-10-25 2019-02-15 中国石油天然气股份有限公司 A kind of determination method of air water stable percolation
CN109470616A (en) * 2018-10-31 2019-03-15 重庆大学 Rock multifunction seepage test macro
CN109884726A (en) * 2019-03-07 2019-06-14 中国石油大学(北京) The gas breakthrough time prediction technique and device of gas-drive pool
CN109884726B (en) * 2019-03-07 2020-08-04 中国石油大学(北京) Gas-drive reservoir gas-visible time prediction method and device
CN110618071A (en) * 2019-09-06 2019-12-27 中国科学院地质与地球物理研究所 Gas phase critical filling pressure measuring device and method
CN110702586A (en) * 2019-11-05 2020-01-17 清华大学 Method and device for measuring permeability of rock core

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