CN105403347B - CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit - Google Patents

CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit Download PDF

Info

Publication number
CN105403347B
CN105403347B CN201510850339.5A CN201510850339A CN105403347B CN 105403347 B CN105403347 B CN 105403347B CN 201510850339 A CN201510850339 A CN 201510850339A CN 105403347 B CN105403347 B CN 105403347B
Authority
CN
China
Prior art keywords
pressure
crude oil
sample kettle
gas
kettle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510850339.5A
Other languages
Chinese (zh)
Other versions
CN105403347A (en
Inventor
吕新华
吴莎
李遵照
杨昌华
林伟民
邓瑞健
赵斌
陈灿
刘静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co
Original Assignee
China Petroleum and Chemical Corp
Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co filed Critical China Petroleum and Chemical Corp
Priority to CN201510850339.5A priority Critical patent/CN105403347B/en
Publication of CN105403347A publication Critical patent/CN105403347A/en
Application granted granted Critical
Publication of CN105403347B publication Critical patent/CN105403347B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/002Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by thermal means, e.g. hypsometer
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/004Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces

Abstract

The present invention relates to a kind of CO2THE MINIMUM MISCIBLE PRESSURE method and dedicated unit are driven, oil field CO is belonged to2It drives and improves recovery efficiency technique field.CO2The dedicated unit of THE MINIMUM MISCIBLE PRESSURE method is driven by CO2Gas cylinder, crude oil bottle, pressure gauge, sample kettle, gas chromatograph and advection pump group at, piston moving up and down is equipped in the cavity of sample kettle, sample kettle top is equipped with pressure gauge, sample kettle top is connect with gas chromatograph by installing valvular pipeline, sample kettle lower part is connect with constant-flux pump by installing valvular pipeline, CO2Gas cylinder and crude oil bottle are connected in parallel by triple valve and sample kettle top.Based on CO2During crude oil mixed phase, with CO2The increase of pressure, the effect of light components in crude oil that extracts constantly enhance, and light components content amplification is larger, after reaching minimum miscibility pressure, the phenomenon that light components content amplification reduces, can easily and accurately determine CO by curve matching2Drive minimum miscibility pressure.

Description

CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit
Technical field
The present invention relates to a kind of CO2The measuring method and dedicated unit for driving minimum miscibility pressure, belong to oil field CO2It drives and improves Recovery efficiency technique field.
Background technique
CO2Drive is to improve one of most promising method of oil recovery, and the height of oil displacement efficiency depends primarily on drive For pressure, only when displacement pressure is higher than CO2It is likely to achieve the effect that mixed phase drives when the minimum miscibility pressure of drive.Therefore, most Small miscible pressure is CO2Mixed phase drives an important parameter of exploitation, Accurate Determining CO2Minimum miscibility pressure is driven to raising CO2Drive is adopted Yield is of great significance.
There are three ways to determining minimum miscibility pressure at present: empirical formula method, state Equation Method and experimental method.
Empirical formula method is mainly according to a large amount of block crude oil of forefathers and CO2Minimum miscibility pressure analysis fitting obtains, the party Method is simply direct, but since it is established on the basis of the actual conditions gas injection mixed phase in some specific oil fields drives research experiment, is applicable in Range is very limited, and the expression-form of each empirical equation is different, and the minimum miscibility pressure value possible error finally obtained is very Greatly.
State Equation Method is minimum miscibility pressure and CO2The phase behavior of crude oil system connects, by CO2It is former Oil systems bubble point is sought, and is used miscibility function as judgment basis, is finally acquired CO2The minimum miscibility pressure of crude oil system, but The critical value of heavy component and eccentric factor are acquired by rule-of-thumb relation in this method, and acquiring these values is by testing Out, there is a certain error for the critical value and eccentric factor calculated in this way, therefore its CO for seeking2Minimum miscibility pressure is driven to exist Error.
Experimental method mainly has liter bubble instrument method, vapour density method, interfacial tension method and a slim-tube test method.
Rising bubble instrument method is the bubble an action shot of bat in visual observation certain pressure during the experiment to determine most Small miscible pressure can only determine that positive contact reaches the minimum miscibility pressure of mixed phase process, and measurement result is not accurate enough.
Interfacial tension method is using the interfacial tension under the conditions of interfacial tension tester measurement different pressures, by observing boundary Face tension becomes state when 0, and when interfacial tension is 0, corresponding pressure is minimum miscibility pressure.But this method is by people For being affected for subjective observation, less reproducible, there is a problem with large errors.
Oil and gas industry standard SY/T 6573-2003 " minimum miscibility pressure (MMP) slim-tube test measuring method " is laboratory Measure CO2The one kind for driving minimum miscibility pressure is common, accurate method, and measured value is suitble to engineer application and studied personnel are wide To approve.But this method needs to test 4-6 pressure point data, each pressure spot will by tubule cleaning, saturation crude oil, CO2The stages such as displacement crude oil, therefore, testing time are long (5-10 days), at high cost, and viscosity is high, heavy components content is high Crude oil is easy to generate blocking to tubule in displacement process.
ZL 201210289799.1 discloses multi-tube type minimum mixed-phase pressure measurement method and device, more tubule parallel connections Connection carries out saturated oils operation to every tubule, successively measures the recovery ratio under the conditions of different pressures, is fitted pressure and recovery ratio Relation curve obtains minimum miscibility pressure value, but this method crude oil dosage and CO according to knee of curve2Gas usage is larger, holds Easy blocking pipeline and leakage, and test period is long, the testing time is generally 7 days or so.
Application No. is 201410098384.5 patent applications to disclose a kind of application CT measurement oil gas minimum miscibility pressure Apparatus and method, this method obtains the CT image of gas mixture under different gas injection pressures using CT scan, after processing The mutually gentle mutually pressure-dependent density value of oil is respectively obtained, the intersection point of oil with air tightness difference curve and pressure axis is determined, obtains To the minimum miscibility pressure of oil gas.But this method is in CO2It drives in minimum miscibility pressure measurement, oil is mutually and gas phase is in supercritical state The density of states is closer to, it is difficult to it distinguishes, it is larger so as to cause measurement error.And the X-ray used has radiation, to experimental implementation The labor protection of personnel is more demanding, and equipment is costly.
Application No. is 201210522657.5 patent applications to disclose a kind of utilization mr imaging technique measurement oil gas The apparatus and method of minimum miscibility pressure, this method determine signal strength oily in flat based tubes point using mr imaging technique Cloth obtains signal strength oily in gas-liquid two-phase in visual field at a certain temperature with the change curve of pressure, passes through determination The intersection point of intensity curves and pressure axis obtains the minimum miscibility pressure of gas and oil.But this method is in CO2Drive minimum mixed phase In pressure measurement, oil is mutually closer in supercriticality due to being mutually dissolved density with gas phase, and signal strength is difficult to differentiate between;And And nuclear magnetic resonance equipment is used, the maintenance cost of experimental cost and equipment is higher.
Summary of the invention
The purpose of the present invention is be directed to CO of the existing technology2Drive that THE MINIMUM MISCIBLE PRESSURE error is big, measurement experiment The problems such as period is long provides a kind of CO2Drive THE MINIMUM MISCIBLE PRESSURE method.
It is a further object to provide above-mentioned CO2Drive the dedicated unit of THE MINIMUM MISCIBLE PRESSURE method.
CO2The dedicated unit of THE MINIMUM MISCIBLE PRESSURE method is driven by CO2Gas cylinder, crude oil bottle, pressure gauge, sample kettle, gas phase Chromatograph and advection pump group at, piston moving up and down is equipped in the cavity of sample kettle, sample kettle top is equipped with pressure gauge, Sample kettle top is connect with gas chromatograph by installing valvular pipeline, and sample kettle lower part and constant-flux pump are by being equipped with valve The pipeline connection of door, CO2Gas cylinder and crude oil bottle are connected in parallel by triple valve and sample kettle top.
A kind of CO2THE MINIMUM MISCIBLE PRESSURE method is driven, step includes:
(1) successively by the crude oil and CO to be measured in crude oil bottle2CO in gas cylinder2It is added in sample kettle, closes CO2Gas cylinder With crude oil bottle;
(2) temperature in sample kettle is risen into reservoir temperature, makes CO2It sufficiently dissolves to reach with crude oil to be measured and balance each other, shape At rich CO2Mutually with rich crude oil phase, the intracorporal initial pressure of sample kettle chamber is recorded;
(3) by the rich CO in sample kettle2Phase gas, which is introduced into gas chromatograph, carries out component analysis, and measures rich CO2Phase The molar content of light hydrocarbon component in gas;
(4) constant-flux pump is opened, is pressurized in the lower cavity of the piston into sample kettle, is pushed on the piston in sample kettle Row makes to be pressurized in the upper chamber of the piston in sample kettle by the barometric gradient of 1-3MPa, makes CO2With crude oil mixed system to be measured Sufficiently dissolution, which reaches, balances each other, and closes constant-flux pump, determines in the rich CO to balance each other under state2Light hydrocarbon component rubs in phase gas Corresponding relationship under that content and the pressure state;
(5) repeat the above steps (4), determines the rich CO to balance each other under state2The molar content of light hydrocarbon component in phase gas Pressure-dependent corresponding relationship obtains CO2Minimum miscibility pressure between crude oil to be measured.
The rich CO2Light hydrocarbon component in phase gas includes the alkane of C1 to C5.
Beneficial effects of the present invention: utilizing sample kettle and gas chromatograph, by being gradually pressurized, obtains in the shape that balances each other Rich CO under state2The pressure-dependent rule of the molar content of light hydrocarbon component in phase gas is based on CO2During crude oil mixed phase, With CO2The increase of pressure, the effect for extracting light components in crude oil constantly enhance, and light components content amplification is larger, reaches After minimum miscibility pressure, light components content amplification reduce the phenomenon that, CO can easily and accurately be determined by curve matching2It drives Minimum miscibility pressure.And the testing time is less than 24 hours.
Detailed description of the invention
Fig. 1 is apparatus of the present invention schematic diagram;
Fig. 2 is the light hydrocarbon component content of certain crude oil measurement with pressure variation.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1:
As shown in Figure 1, CO2The dedicated unit of THE MINIMUM MISCIBLE PRESSURE method is driven by CO2Gas cylinder 1, crude oil bottle 2, pressure gauge 4, sample kettle 6, gas chromatograph 8 and constant-flux pump 10 form, and piston 7 moving up and down, sample are equipped in the cavity of sample kettle 6 6 top of kettle is equipped with pressure gauge 4, and 6 top of sample kettle is connect with gas chromatograph 8 by being equipped with the pipeline of valve 5, sample 6 lower part of kettle is connect with constant-flux pump 10 by being equipped with the pipeline of valve 9, CO2Gas cylinder 1 and crude oil bottle 2 pass through triple valve 3 and sample 6 top of kettle is connected in parallel.
A kind of CO2Drive THE MINIMUM MISCIBLE PRESSURE method, comprising the following steps:
(1) certain CO is taken2Oil reservoirs crude oil is placed in crude oil bottle 2, by the crude oil and CO in crude oil bottle 22CO in gas cylinder 12 It is added in sample kettle 6, closes CO2Gas cylinder 1 and crude oil bottle 2;
(2) temperature in sample kettle 6 is risen to 85 DEG C of reservoir temperature, makes crude oil and CO2It is filled in 6 upper chamber of sample kettle Divide dissolution to reach to balance each other, forms richness CO2Phase and rich crude oil phase, and recording the intracorporal initial pressure of 6 chamber of sample kettle is 8MPa;
(3) by the intracorporal richness CO of 6 upper chambers of sample kettle2Phase gas, which is introduced into gas chromatograph 8, carries out component analysis, and Measure richness CO2The molar content of light hydrocarbon component is 1.05% in phase gas;
(4) constant-flux pump 10 is opened, is pressurized in the lower cavity of the piston 7 into sample kettle 6, the work in sample kettle 6 is pushed 7 uplinks are filled in, the barometric gradient of the intracorporal pressure increase 2MPa of the upper chambers of the piston 7 in sample kettle 6 is made, and make CO2With crude oil It sufficiently dissolves to reach again in 6 upper chamber of sample kettle and balance each other, constant-flux pump 10 is closed, at 8 measurement of gas chromatograph Rich CO under this balances each other state2The molar content of light hydrocarbon component is 1.17% in phase gas;
(5) it repeats the above steps 4, is measured using gas chromatograph 8 corresponding in balancing each other under shape after each pressurization Rich CO2The molar content values of light hydrocarbon component, measurement result are as shown in table 1 in phase gas.
1 richness CO of table2The molar content of light hydrocarbon component is with pressure variation table in phase gas
(6) it according to the measurement result of table 1, draws as shown in Figure 2 in the rich CO to balance each other under shape2Lighter hydrocarbons in phase gas The molar content of component and the relation curve of pressure are inflection point occur near 36.0MPa, therefore pressing in pressure known to curve Power is less than the point fitting a straight line y1 of 36.0MPa, and pressure is more than or equal to point the fitting a straight line y2, R of 36.0MPa2Indicate the phase of fitting Relationship number, pressure corresponding to the intersection point of two straight lines of fitting are 35.3MPa, as CO2Minimum miscibility pressure value is driven, when test Between be 15 hours.
Embodiment 2 and embodiment 3:
The step of embodiment 2, is same as Example 1, and difference is that the barometric gradient in step (4) is 3MPa, measures Minimum miscibility pressure is 35.0MPa, and the testing time is 10 hours.
The step of embodiment 3, is same as Example 1, and difference is that the barometric gradient in step (4) is 1MPa, measures Minimum miscibility pressure is 35.8MPa, and the testing time is 20 hours.
It is measured using oil and gas industry standard SY/T 6573-2003 " minimum miscibility pressure (MMP) slim-tube test measuring method " The crude oil and CO2Between minimum miscibility pressure be 36.2MPa, and of the invention to measure result close.Comparative example 1-3 can be with Find out, when the barometric gradient in step (4) is 1MPa, the result and oil and gas industry standard SY/T 6573-2003 that measure The result of " minimum miscibility pressure (MMP) slim-tube test measuring method " measurement is surveyed more closely, illustrate that the barometric gradient in step (4) is smaller It is more accurate to determine result.Can to sum up obtain, the present invention is simple to operation, can quickly, it is accurate, economically measure CO2It drives minimum mixed Phase pressure.

Claims (3)

1.CO2Drive the measuring method of minimum miscibility pressure, it is characterised in that: the following steps are included:
(1) successively by the crude oil and CO to be measured in crude oil bottle (2)2CO in gas cylinder (1)2It is added in sample kettle (6), closes CO2 Gas cylinder (1) and crude oil bottle (2);
(2) temperature in sample kettle (6) is risen into reservoir temperature, makes CO2It sufficiently dissolves to reach with crude oil to be measured and balance each other, formed Rich CO2Mutually with rich crude oil phase, the intracorporal initial pressure of sample kettle (6) chamber is recorded;
(3) by the rich CO in sample kettle (6)2Phase gas, which is introduced into gas chromatograph (8), carries out component analysis, and measures rich CO2 The molar content of light hydrocarbon component in phase gas;
(4) constant-flux pump (10) are opened, pressurization in the lower cavity of the piston (7) into sample kettle (6) pushes in sample kettle (6) Piston (7) uplink, make the barometric gradient pressurization in the upper chamber of the piston (7) in sample kettle (6) by 1-3MPa, make CO2 It sufficiently dissolves to reach with crude oil mixed system to be measured and balance each other, close constant-flux pump (10), determine in the richness to balance each other under state CO2Corresponding relationship in phase gas under the molar content of light hydrocarbon component and the pressure state;
(5) repeat the above steps (4), determines the rich CO to balance each other under state2The molar content of light hydrocarbon component is with pressure in phase gas The corresponding relationship of variation obtains CO2Minimum miscibility pressure between crude oil to be measured.
2. CO according to claim 12Drive the measuring method of minimum miscibility pressure, it is characterised in that: the rich CO2Phase Light hydrocarbon component in gas includes the alkane of C1 to C5.
3. one kind is exclusively used in implementing CO as claimed in claim 1 or 22The measurement device of the measuring method of minimum miscibility pressure is driven, It is characterized by: the measurement device is by CO2Gas cylinder (1), crude oil bottle (2), pressure gauge (4), sample kettle (6), gas chromatograph (8) It is formed with constant-flux pump (10), it is characterized in that: piston moving up and down (7) are equipped in the cavity of sample kettle (6), sample kettle (6) Top is equipped with pressure gauge (4), and sample kettle (6) top is connect with gas chromatograph (8) by being equipped with the pipeline of valve (5), Sample kettle (6) lower part is connect with constant-flux pump (10) by being equipped with the pipeline of valve (9), CO2Gas cylinder (1) and crude oil bottle (2) are logical Triple valve (3) is crossed to be connected in parallel with sample kettle (6) top.
CN201510850339.5A 2015-11-27 2015-11-27 CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit Active CN105403347B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510850339.5A CN105403347B (en) 2015-11-27 2015-11-27 CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510850339.5A CN105403347B (en) 2015-11-27 2015-11-27 CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit

Publications (2)

Publication Number Publication Date
CN105403347A CN105403347A (en) 2016-03-16
CN105403347B true CN105403347B (en) 2019-09-06

Family

ID=55468972

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510850339.5A Active CN105403347B (en) 2015-11-27 2015-11-27 CO2Drive THE MINIMUM MISCIBLE PRESSURE method and dedicated unit

Country Status (1)

Country Link
CN (1) CN105403347B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105890839B (en) * 2016-03-29 2018-04-27 中国石油大学(华东) Measure supercritical CO2The device and method of microemulsion system cloud-point pressure and density
CN106124118B (en) * 2016-07-05 2018-12-28 中国石油天然气股份有限公司 Rise bubble instrument and its application method
CN108952647A (en) * 2017-05-22 2018-12-07 中国石油化工股份有限公司 A method of measuring and calculating the hydrocarbon component influences oil gas minimum miscibility pressure
CN110068651B (en) * 2018-01-23 2020-08-14 北京大学 CO2Oil displacement mixing aid mixing effect evaluation method and CO2Oil displacement mixing aid screening method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455860A (en) * 1982-12-07 1984-06-26 Mobil Oil Corporation Method and apparatus for determining CO2 minimum miscibility pressure of reservoir oil
CN102159675A (en) * 2007-11-28 2011-08-17 沙特阿拉伯石油公司 Process to upgrade whole crude oil by hot pressurized water and recovery fluid
CN102798499A (en) * 2012-08-15 2012-11-28 中国石油天然气股份有限公司 Multi-tube type minimum mixed-phase pressure measuring method and device
CN103018134A (en) * 2012-12-08 2013-04-03 大连理工大学 Device and method for determination of oil gas minimum miscibility pressure through magnetic resonance imaging technology
CN103900755A (en) * 2014-03-14 2014-07-02 大连理工大学 Device and method for measuring minimum miscibility pressure of oil and gas through CT
CN104502237A (en) * 2014-12-15 2015-04-08 中国石油大学(华东) Device for measuring diffusion coefficient of CO2 diffusing from aqueous phase to oil phase and operating method thereof
CN104533362A (en) * 2014-12-22 2015-04-22 中国石油大学(北京) Method for increasing volume expansion of CO2 and crude oil system liquid phase in non-miscible-phase displacement
CN104975829A (en) * 2015-06-08 2015-10-14 中国石油大学(北京) Carbon dioxide drive oil reservoir production method capable of realizing stage control on fluidity
CN105041280A (en) * 2015-06-03 2015-11-11 东北石油大学 Method and device for realizing carbon dioxide miscible-phase displacement laboratory experiment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX361200B (en) * 2014-05-14 2018-11-07 Mexicano Inst Petrol Measurement process of minimum miscibility pressure (mmp) and critical points of a gas in crude oils or binary mixtures.
CN104462753B (en) * 2014-10-31 2018-09-18 中国石油化工股份有限公司 A kind of CO2Drive the prediction technique of minimum miscibility pressure
CN104610953B (en) * 2015-02-02 2017-10-20 中国石油大学(华东) It is a kind of to reduce the Microemulsions in Supercritical Carbon Dioxide of carbon dioxide and crude oil minimum miscibility pressure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455860A (en) * 1982-12-07 1984-06-26 Mobil Oil Corporation Method and apparatus for determining CO2 minimum miscibility pressure of reservoir oil
CN102159675A (en) * 2007-11-28 2011-08-17 沙特阿拉伯石油公司 Process to upgrade whole crude oil by hot pressurized water and recovery fluid
CN102798499A (en) * 2012-08-15 2012-11-28 中国石油天然气股份有限公司 Multi-tube type minimum mixed-phase pressure measuring method and device
CN103018134A (en) * 2012-12-08 2013-04-03 大连理工大学 Device and method for determination of oil gas minimum miscibility pressure through magnetic resonance imaging technology
CN103900755A (en) * 2014-03-14 2014-07-02 大连理工大学 Device and method for measuring minimum miscibility pressure of oil and gas through CT
CN104502237A (en) * 2014-12-15 2015-04-08 中国石油大学(华东) Device for measuring diffusion coefficient of CO2 diffusing from aqueous phase to oil phase and operating method thereof
CN104533362A (en) * 2014-12-22 2015-04-22 中国石油大学(北京) Method for increasing volume expansion of CO2 and crude oil system liquid phase in non-miscible-phase displacement
CN105041280A (en) * 2015-06-03 2015-11-11 东北石油大学 Method and device for realizing carbon dioxide miscible-phase displacement laboratory experiment
CN104975829A (en) * 2015-06-08 2015-10-14 中国石油大学(北京) Carbon dioxide drive oil reservoir production method capable of realizing stage control on fluidity

Also Published As

Publication number Publication date
CN105403347A (en) 2016-03-16

Similar Documents

Publication Publication Date Title
US10060247B2 (en) Hydrocarbon well performance monitoring system
CN106437637B (en) High temperature and pressure carbon dioxide flooding super-viscous oil visualizes microcosmos experiment method
CN103954544B (en) A kind of polymer control water increases experimental provision and the experimental technique of gas effect assessment
Richardson et al. Laboratory determination of relative permeability
CN106896043B (en) True triaxial stress Imitating crack initiation and the device for evaluating fisstured flow
US10436696B2 (en) Methods and systems for determining gas permeability of a subsurface formation
CN102980837B (en) Hydro carbons diffusion coefficients equipment and assay method in rock under High Temperature High Pressure
CN103541723B (en) Based on the rod-pumped well real-time working condition diagnostic method of surface dynamometer card area change
EP2460017B1 (en) Pvt analysis of pressurized fluids
CN104677771B (en) A method of shale porosity is determined based on magnetic suspension gravimetric method
CN203658217U (en) Seepage starting pressure gradient test device
CN104297126B (en) low permeability reservoir gas seepage starting pressure gradient measuring device and measuring method
CN106525690B (en) Method for measuring gas-water relative permeability curve by tight sandstone steady-state method
CN103674799B (en) The device and method of a kind of mensurated gas composition axial diffusion coefficient in porous medium
CN102221514B (en) Joint testing device and method of rheological property of polymer solution and relative permeability of core
CN102914494B (en) Device for measuring dynamic leak-off of foam fracturing fluid and working method thereof
CN203630018U (en) Unstable-state determination device for permeability of hyposmosis rock
US20060070425A1 (en) Electronic humidity chamber for vapor desorption to determine high capillary pressures
CN103645126A (en) Determining method for stratum high-temperature high-pressure gas-phase and water-phase relative permeability curve
CN106814018A (en) A kind of tight rock gas phase relative permeability measurement apparatus and method
CN103760085B (en) A kind of test unit and test method thereof measuring multiscale rock permeability
CN104101564A (en) Device and method for testing low-permeability core starting pressure gradient at high temperature and high pressure with unsteady state method
CN104729972B (en) Determine the method and device of carbonate rock Gas And Water Relative Permeability
US20170248506A1 (en) Coreflood Testing System and Methods for Simultaneous Measurement of Key Core Properties
RU2008118158A (en) Methods and systems for determining properties of underground formations

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant