CN102706786B - A kind of dynamic shale pore pressure transmission tester - Google Patents
A kind of dynamic shale pore pressure transmission tester Download PDFInfo
- Publication number
- CN102706786B CN102706786B CN201210200455.9A CN201210200455A CN102706786B CN 102706786 B CN102706786 B CN 102706786B CN 201210200455 A CN201210200455 A CN 201210200455A CN 102706786 B CN102706786 B CN 102706786B
- Authority
- CN
- China
- Prior art keywords
- holding unit
- piston container
- valve
- downstream
- core holding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of dynamic shale pore pressure transmission tester, overcome and at present also the deficiency effectively analyzed is not carried out on the impact of the convection cell migrations such as the materialization effect of property of drilling fluid etc. and mud shale permeability, in this device: core holding unit comprises early-stage work room and downstream operating room, confined pressure is connected to core holding unit from motion tracking pump by pipeline, downstream piston container and vacuum pump common pall are connected to the downstream operating room of core holding unit, the endpiece of the first upstream piston container and the endpiece common pall of the second upstream piston container are connected to the early-stage work room of core holding unit, high-pressure air source provides back pressure to core holding unit end face, downstream piston container is connected with mechanically aided pump, and vacuum pump is connected on the pipeline between core holding unit and downstream piston container.The present invention can Study of Fluid on the impact of shale semipermeable partition efficiency.
Description
Technical field
The present invention relates to dynamic shale pore pressure and transmit analytical technology, particularly relate to a kind of dynamic shale pore pressure transmission tester.
Background technology
The borehole well instability that Pressure Transmission causes is a research puzzle of Oil-Gas Well Engineering, its mechanism of action and major control factors thereof be the basic problem urgently studied of current oil-gas exploration and development field it
In mud shale, fluid migration (leak-off) speed depends on permeability and drilling fluid/rock materialization/mechanical function between the two etc. the factor of the difference DELTA P of fluid column pressure and pore pressure in well, property of drilling fluid, rock of borehole.Because mud shale permeability is low, hydraulic conductivity speed is little, the change of pore pressure can not pass rapidly, therefore nearly borehole wall area is along with the migration of fluid, Δ P can level off to for zero (forward/negative sense all likely), when rock permeability is certain, pressure transmission is determined by Δ P and property of drilling fluid.
But also there is no at present relevant art to analyze the impact of the convection cell migrations such as Δ P, property of drilling fluid, the materialization effect of drilling fluid/rock and mud shale permeability.
Summary of the invention
Technical matters to be solved by this invention overcomes at present also not carry out effective deficiency analyzed to the impact that the convection cells such as the materialization effect of the difference DELTA P of fluid column pressure in well and pore pressure, property of drilling fluid, drilling fluid/rock and mud shale permeability moves.
In order to solve the problems of the technologies described above, the invention provides a kind of dynamic shale pore pressure transmission tester, comprise core holding unit (10), confined pressure from motion tracking pump (17), vacuum pump (18), mechanically aided pump (24), high-pressure air source (16), the first upstream piston container (5), the second upstream piston container (6) and downstream piston container (23), wherein:
Core holding unit (10) comprises early-stage work room and downstream operating room, confined pressure is connected to core holding unit (10) from motion tracking pump (17) by pipeline, downstream piston container (23) and vacuum pump (18) common pall are connected to the downstream operating room of core holding unit (10), the endpiece of the first upstream piston container (5) and the endpiece common pall of the second upstream piston container (6) are connected to the early-stage work room of core holding unit (10), and high-pressure air source (16) provides back pressure to core holding unit (10) end face; Downstream piston container (23) is connected with mechanically aided pump (24), and vacuum pump (18) is connected on the pipeline between core holding unit (10) and downstream piston container (23).
Preferably, high-pressure air source (16) provides back pressure by check valve (13) to core holding unit (10) end face.
Preferably, the 6th valve (11), pressure regulator valve (15) and this check valve (13) is provided with between high-pressure air source (16) and core holding unit (10).
Preferably, pipeline between the 6th valve (11) and check valve (13) is provided with the 6th valve (12), the pipeline between check valve (13) and pressure regulator valve (15) is provided with the second pressure transducer (14).
Preferably, the inlet end of the first upstream piston container (5) is provided with the second valve (3), and endpiece is provided with the 4th valve (7); The inlet end of the second upstream piston container (6) is provided with the 3rd valve (4), and endpiece is provided with the 5th valve (8).
Preferably, the inlet end of the first upstream piston container (5) and the inlet end common pall of the second upstream piston container (6), this common pall is provided with the first valve (2).
Preferably, the endpiece of the first upstream piston container (5) and the endpiece common pall of the second upstream piston container (6) are connected on core holding unit (10), this common pall are provided with the first pressure transducer (9).
Preferably, the pipeline between core holding unit (10) and downstream piston container (23) and vacuum pump (18) is provided with valve downstream (20).
Preferably, the 3rd pressure transducer (19) is provided with between the early-stage work room of core holding unit (10) and valve downstream (20).
Preferably, pipeline between 3rd pressure transducer (19) and downstream piston container (23) is provided with the 9th valve (21) and this valve downstream (20), the pipeline connecting vacuum pump (18) is drawn from the pipeline between this valve downstream (20) and the 9th valve (21).
Compared with prior art, embodiments of the invention are rational in infrastructure, easy to operate, and can measure the transfer characteristic of different fluid in shale by simulation stratum condition, Study of Fluid is on the impact of shale semipermeable partition efficiency.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in instructions, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining technical scheme of the present invention, does not form the restriction to technical solution of the present invention.
Fig. 1 is the organigram of embodiment of the present invention dynamic shale pore pressure transmission tester.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
As shown in Figure 1, the dynamic shale pore pressure transmission tester of the embodiment of the present invention mainly comprises core holding unit 10, ISCO pump 1, confined pressure from motion tracking pump 17, vacuum pump 18, mechanically aided pump 24, high-pressure air source 16, first upstream piston container 5, second upstream piston container 6 and downstream piston container 23 etc.
Core holding unit 10 comprises early-stage work room, downstream operating room and porous plate etc., and core holding unit 10 can apply confined pressure.The porous plate of clamper upstream being connected with adjuster bar, when using different length rock core, the position of porous plate can being regulated to compress rock core.
Confined pressure is connected to core holding unit 10 from motion tracking pump 17 by pipeline, downstream piston container 23 and vacuum pump 18 common pall are connected to the downstream operating room of core holding unit 10, the endpiece of the first upstream piston container 5 and the endpiece common pall of the second upstream piston container 6 are connected to the early-stage work room of core holding unit 10, and high-pressure air source 16 (than if provide the gas cylinder etc. of gases at high pressure) provides back pressure to core holding unit 10 end face by check valve 13.Downstream piston container 23 is connected with mechanically aided pump 24, and vacuum pump 18 is connected on the pipeline between core holding unit 10 and downstream piston container 23.
When utilizing the embodiment of the present invention to test, in core holding unit 10, splendid attire mud shale rock core is as rock sample, adopts confined pressure from motion tracking pump 17 for core holding unit applies constant confining pressure.After adopting vacuum pump 18 to vacuumize the first upstream piston container 5, second upstream piston container 6, core holding unit 10 and downstream piston container 23, ISCO pump 1 is adopted to be pressurizeed to the early-stage work room of core holding unit 10 by the first upstream piston container 5, and pressurizeed to the downstream operating room of core holding unit 10 by mechanically aided pump 24 and downstream piston container 23, in core holding unit 10, the upstream and downstream operating room two ends testing liquid of rock sample sets up pressure differential deltap P=0.Then, close the second valve 3 being arranged on the first upstream piston container 5 inlet end and the 4th valve 7 being arranged on the first upstream piston container 5 endpiece, and open the 6th valve 11 between high-pressure air source 16 and core holding unit 10 on pipeline and the check valve 13 be arranged between high-pressure air source 16 and the 6th valve 11 and pressure regulator valve 15 are set, by the early-stage work room pressurization that high-pressure air source is core holding unit 10, core holding unit 10 end face is set up a fixing back pressure.Now, to be replaced the testing liquid in the early-stage work room of core holding unit 10 with low-activity testing liquid by the second upstream piston container 6, the valve downstream 20 of closing on the pipeline that is arranged between core holding unit 10 and downstream piston container 23 and vacuum pump 18 forms blind end.Treat that two ends, core holding unit 10 upstream and downstream form chemical potential difference, detect rock sample downstream blind end Pressure behaviour in real time by the 3rd pressure transducer 19 be arranged between the early-stage work room of core holding unit 10 and valve downstream 20 change and record pressure-time curve, obtain test figure when downstream pressure reduces, now can terminate test.
In embodiments of the invention, what the 3rd pressure transducer 19 was selected is micro pressure sensor, by itself and valve downstream 20 integrated setting, can reduce downstream dead volume, accurately measure downstream chamber pressure situation over time.
As shown in Figure 1, in the embodiment of the present invention, the inlet end of the first upstream piston container 5 and the inlet end common pall of the second upstream piston container 6 are connected on ISCO pump 1, and are provided with the first valve 2 on the pipeline shared.The pipeline of the second upstream piston container 6 inlet end is provided with the 3rd valve 4, the pipeline of the second upstream piston container 6 endpiece is provided with the 5th valve 8.
As shown in Figure 1, in the embodiment of the present invention, the endpiece of the first upstream piston container 5 and the endpiece of the second upstream piston container 6 are connected on the common pall of core holding unit 10, are provided with the first pressure transducer 9.
As shown in Figure 1, in the embodiment of the present invention, the pipeline between the 6th valve 11 and check valve 13 is provided with the 6th valve 12, the pipeline between check valve 13 and pressure regulator valve 15 is provided with the second pressure transducer 14.
As shown in Figure 1, in the embodiment of the present invention, the pipeline between the 3rd pressure transducer 19 and downstream piston container 23 is provided with valve downstream 20 and the 9th valve 21.The pipeline connecting vacuum pump 18 is drawn from the pipeline between valve downstream 20 and the 9th valve 21.
In embodiments of the invention, piston container is mainly used to store and transportation work medium, and has the effect of compensator or trimmer pressure ripple.Displacement fluid and actuating medium, with separator piston, can be kept apart by the piston container in the embodiment of the present invention.In the embodiment of the present invention, piston uses O type circle and Y-shaped ring to carry out double seal, ensures sealing property.
By embodiments of the invention, parameters such as obtaining the membrane efficiency of rock sample and permeability can be calculated.
Can also insulation can be comprised in enforcement of the present invention, be placed in insulation can with regard to the whole device shown in Fig. 1 and carry out temperature-pressure test.
What the power source of the embodiment of the present invention adopted low flow noise, no pulse can the import high-pressure metering pump of constant voltage and constant current, this pump volume is little and easy to operate, can start fast, close, carry out flow velocity, the operation of pressure parameter and the operation of other function, can liquid be driven to continuously upstream piston container.
Embodiments of the invention are under simulation stratum condition, and measure the transfer characteristic of different fluid in shale (pore pressure over time), Study of Fluid is on the impact of shale semipermeable partition efficiency.Embodiments of the invention, can the materialization effect of the difference of fluid column pressure and pore pressure, property of drilling fluid, drilling fluid/rock and mud shale permeability convection cell move in accurate analysis well impact by dynamic shale pore pressure transmission experiment.
Although the embodiment disclosed by the present invention is as above, the embodiment that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Those of skill in the art belonging to any the present invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (7)
1. a dynamic shale pore pressure transmission tester, comprise core holding unit (10), confined pressure from motion tracking pump (17), vacuum pump (18), mechanically aided pump (24), high-pressure air source (16), the first upstream piston container (5), the second upstream piston container (6) and downstream piston container (23), wherein:
Core holding unit (10) comprises early-stage work room and downstream operating room, confined pressure is connected to core holding unit (10) from motion tracking pump (17) by pipeline, downstream piston container (23) and vacuum pump (18) common pall are connected to the downstream operating room of core holding unit (10), the endpiece of the first upstream piston container (5) and the endpiece common pall of the second upstream piston container (6) are connected to the early-stage work room of core holding unit (10), and high-pressure air source (16) provides back pressure to core holding unit (10) end face; Downstream piston container (23) is connected with mechanically aided pump (24), and vacuum pump (18) is connected on the pipeline between core holding unit (10) and downstream piston container (23); The inlet end of the first upstream piston container (5) and the inlet end common pall of the second upstream piston container (6), this common pall is provided with the first valve (2); Pipeline between core holding unit (10) and downstream piston container (23) and vacuum pump (18) is provided with valve downstream (20); The 3rd pressure transducer (19) is provided with, valve downstream (20) and the 3rd pressure transducer (19) integrated setting between the downstream operating room of core holding unit (10) and valve downstream (20).
2. dynamic shale pore pressure transmission tester according to claim 1, wherein:
High-pressure air source (16) provides back pressure by check valve (13) to core holding unit (10) end face.
3. dynamic shale pore pressure transmission tester according to claim 2, wherein:
The 6th valve (11), pressure regulator valve (15) and this check valve (13) is provided with between high-pressure air source (16) and core holding unit (10).
4. dynamic shale pore pressure transmission tester according to claim 3, wherein:
Pipeline between the 6th valve (11) and check valve (13) is provided with the 6th valve (12), the pipeline between check valve (13) and pressure regulator valve (15) is provided with the second pressure transducer (14).
5. dynamic shale pore pressure transmission tester according to claim 1, wherein:
The inlet end of the first upstream piston container (5) is provided with the second valve (3), and endpiece is provided with the 4th valve (7);
The inlet end of the second upstream piston container (6) is provided with the 3rd valve (4), and endpiece is provided with the 5th valve (8).
6. dynamic shale pore pressure transmission tester according to claim 1, wherein:
The endpiece of the first upstream piston container (5) and the endpiece common pall of the second upstream piston container (6) are connected on core holding unit (10), this common pall are provided with the first pressure transducer (9).
7. dynamic shale pore pressure transmission tester according to claim 1, wherein:
Pipeline between 3rd pressure transducer (19) and downstream piston container (23) is provided with the 9th valve (21) and this valve downstream (20), the pipeline connecting vacuum pump (18) is drawn from the pipeline between this valve downstream (20) and the 9th valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200455.9A CN102706786B (en) | 2012-06-14 | 2012-06-14 | A kind of dynamic shale pore pressure transmission tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200455.9A CN102706786B (en) | 2012-06-14 | 2012-06-14 | A kind of dynamic shale pore pressure transmission tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102706786A CN102706786A (en) | 2012-10-03 |
| CN102706786B true CN102706786B (en) | 2015-12-02 |
Family
ID=46899728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210200455.9A Active CN102706786B (en) | 2012-06-14 | 2012-06-14 | A kind of dynamic shale pore pressure transmission tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102706786B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868841B (en) * | 2014-03-28 | 2016-03-02 | 海安县石油科研仪器有限公司 | Measure the experimental provision of extremely low mud shale permeability and membrane efficiency |
| CN104101564B (en) * | 2014-07-16 | 2016-08-24 | 西南石油大学 | A kind of method of unstable state High Temperature High Pressure test flow in low permeability core free-boundary problem |
| CN106153856B (en) * | 2015-04-20 | 2019-01-01 | 中国石油化工股份有限公司 | One kind evaluating apparatus of shale stability containing crack and method |
| CN105445161B (en) * | 2015-11-16 | 2018-07-27 | 中国石油大学(北京) | The characterizing method of shale full aperture pore volume |
| CN108049863A (en) * | 2018-01-11 | 2018-05-18 | 中国海洋石油集团有限公司 | A kind of drilling fluid chemosmosis pressure difference test device and test method |
| CN109813644B (en) * | 2019-03-19 | 2021-06-22 | 苏州开洛泰克科学仪器科技有限公司 | System and method for measuring porosity of low-permeability rock ore |
| CN111912757B (en) * | 2019-05-10 | 2023-07-25 | 中国石油天然气股份有限公司 | Shale parameter measuring device |
| CN110441206B (en) * | 2019-07-26 | 2020-07-17 | 中国石油大学(北京) | Shale imbibition device integrating imbibition and cutting and method for determining imbibition efficiency parameters |
| CN110308085B (en) * | 2019-08-01 | 2020-11-13 | 西南石油大学 | Pore pressure transmission experiment system and method under hydraulic-chemical coupling action |
| CN111307685B (en) * | 2020-01-16 | 2022-08-02 | 中国石油大学(华东) | Device and method for testing displacement, steady state and transient permeability of low-permeability rock |
| CN111693433A (en) * | 2020-06-08 | 2020-09-22 | 中国石油天然气股份有限公司 | Core vacuumizing and pressurizing saturated water device and method |
| CN111720110B (en) * | 2020-06-30 | 2021-09-21 | 重庆科技学院 | Pressure automatic tracking control gas well production simulation yield control device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536341A (en) * | 2003-04-03 | 2004-10-13 | 中海油田服务股份有限公司 | Channeling measuring method and its device |
| CN101967970A (en) * | 2010-10-22 | 2011-02-09 | 中国石油大学(北京) | Method for measuring dynamic capillary pressure of core under conditions of reservoir temperature and pressure |
| CN102183448A (en) * | 2011-03-09 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | Method and device for measuring breakthrough pressure of porous medium material |
-
2012
- 2012-06-14 CN CN201210200455.9A patent/CN102706786B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536341A (en) * | 2003-04-03 | 2004-10-13 | 中海油田服务股份有限公司 | Channeling measuring method and its device |
| CN101967970A (en) * | 2010-10-22 | 2011-02-09 | 中国石油大学(北京) | Method for measuring dynamic capillary pressure of core under conditions of reservoir temperature and pressure |
| CN102183448A (en) * | 2011-03-09 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | Method and device for measuring breakthrough pressure of porous medium material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102706786A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102706786B (en) | A kind of dynamic shale pore pressure transmission tester | |
| CN103233725B (en) | Device and method for determining high temperature and high pressure full diameter core mud pollution evaluation | |
| CN102778554B (en) | Experimental device for improving permeability of shale gas storage layer in supercritical CO2 fracturing process | |
| CN104005741B (en) | The integrated physical simulation experiment device of the heterogeneous fluid displacement of reservoir oil-pulse release and method | |
| CN103868841B (en) | Measure the experimental provision of extremely low mud shale permeability and membrane efficiency | |
| CN106353197B (en) | High-pressure multiphase flow coupling rock true triaxial test system and method thereof | |
| CN110907334B (en) | Device and method for measuring radial flow oil-water relative permeability of conglomerate full-diameter core | |
| CN106769790B (en) | Shale permeability testing device and method based on liquid pressure pulse under ultrasonic action | |
| CN206410978U (en) | A kind of tight rock gas phase relative permeability measurement apparatus | |
| CN106841000A (en) | The sample component and its test method of special hypotonic rock radial penetration rate testing experiment | |
| RU2008118158A (en) | METHODS AND SYSTEMS FOR DETERMINING PROPERTIES OF UNDERGROUND FORMATIONS | |
| CN107130960B (en) | Numerical simulation method considering nonlinear seepage characteristics of tight sandstone reservoir | |
| Li et al. | Pressures acting in counter-current spontaneous imbibition | |
| CN109030318B (en) | Pressure chamber structure and permeability testing system | |
| CN105804726A (en) | Bubble point pressure testing device and method | |
| CN206583769U (en) | Shale permeability test device based on fluid pressure pulse under a kind of ul-trasonic irradiation | |
| CN109752306A (en) | Dynamic load perturbation process rock permeability test method and its test macro | |
| CN103760065B (en) | A kind of method of testing of polymer solution flow effective apparent viscosity and test macro thereof | |
| CN202735216U (en) | Drilling fluid semipermeable membrane evaluation device | |
| Baldygin et al. | New laboratory core flooding experimental system | |
| CN105422066A (en) | Method for reducing CO<2> flooding minimum miscible pressure | |
| CN111879674B (en) | Testing device and method for determining reasonable well closing time based on shale imbibition permeability | |
| Roshan et al. | Effect of solid–fluid thermal expansion on thermo-osmotic tests: an experimental and analytical study | |
| CN113295540A (en) | Triaxial test device containing natural gas hydrate sediment | |
| CN205826624U (en) | A kind of long cores hydrocarbon gas drives experimental provision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |