CN2613754Y - Preheatable constant-temp. three axial stress core holder - Google Patents
Preheatable constant-temp. three axial stress core holder Download PDFInfo
- Publication number
- CN2613754Y CN2613754Y CN 03246355 CN03246355U CN2613754Y CN 2613754 Y CN2613754 Y CN 2613754Y CN 03246355 CN03246355 CN 03246355 CN 03246355 U CN03246355 U CN 03246355U CN 2613754 Y CN2613754 Y CN 2613754Y
- Authority
- CN
- China
- Prior art keywords
- axial
- axial pressure
- pressurizing
- cap
- fluid
- Prior art date
Links
- 240000006028 Sambucus nigra Species 0.000 title abstract 3
- 239000011435 rock Substances 0.000 claims abstract description 41
- 238000005485 electric heating Methods 0.000 claims abstract description 9
- 239000000463 materials Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 44
- 238000005755 formation reactions Methods 0.000 claims description 44
- 239000007788 liquids Substances 0.000 claims description 28
- 238000005538 encapsulation Methods 0.000 claims description 3
- 210000000576 Arachnoid Anatomy 0.000 claims description 2
- 230000001808 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reactions Methods 0.000 claims description 2
- 230000035882 stress Effects 0.000 description 21
- 238000010438 heat treatment Methods 0.000 description 7
- 238000004458 analytical methods Methods 0.000 description 5
- 230000000704 physical effects Effects 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 methods Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 280000063503 Clamper companies 0.000 description 1
- 238000006073 displacement reactions Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gases Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixtures Substances 0.000 description 1
- 239000003921 oils Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Abstract
Description
Technical field: the utility model relates to the geological exploration and development industry, is used for formation core is done a kind of experimental provision of rock core Physical Property Analysis, is referred to as core holding unit usually.
Background technology: in geological exploration and development, the particularly geologic prospecting of oil and rock gas and production exploitation aspect, need be from the relevant formation core of underground taking-up, take ground and do the experiment of rock core Physical Property Analysis, physical parameters such as the factor of porosity of measurement rock core, permeability perhaps carry out the displacement test relevant with production technique research.These requirement of experiment can simulated formation environment, the i.e. temperature on rock core stratum of living in, pressure etc.Generally, the formation temperature gradient is about 0.04 ℃/m, and pressure gradient is about 2.5KPa/m, the stratum that 4000m～7000m is dark, and temperature can reach 150 ℃～250 ℃, and terrastatic pressure is about 100MPa～175MPa.Therefore, the experimental provision that requires to be used for formation core is done the rock core Physical Property Analysis should be realized heated constant temperature to rock core and by the fluid of rock core, can realize that three axial stresses load to rock core again, with the environmental baseline on simulation stratum, rock core place.
The present core holding unit that uses, it is that rock core is placed in the packing element, and a steel plug is respectively placed at the two ends of rock core, and there is a through hole at the plug center, is connected to pipeline respectively, can allow Experimental Flowing Object cross rock core by pipe flow will; Packing element places in the steel cylinder and forms airtight annular space with steel cylinder, acts on the packing element outer wall when annular space is injected highly pressurised liquid, can make packing element produce distortion extruding rock core, in the experiment test just with this extruding force simulated formation pressure; Outer wall at packing element also is equipped with electric heating device, and available this electric heating device is to the heating of the liquid in the annular space, and liquid passes to rock core with heat by packing element again and makes the rock core heating, with the method simulated formation temperature.
Obviously there are two problems in above-mentioned core holding unit: the first acts on the packing element outer wall and makes packing element produce distortion when pushing rock core when annular space being injected highly pressurised liquid, this extruding force can only act on rock core radially can not act on rock core axially, therefore, it in fact only simulated rock core two dimensions on stratum to stressed.In fact, rock core is to be in a kind of three-dimensional stress on the stratum, obviously the stress that it can not the real simulation formation core.It two is when cryogen flows through rock core by pipeline and plug, pass to the heat of rock core owing to can not in time add hot fluid by packing element, fluid does not reach the simulated formation temperature of setting on the one hand, also make the core temperature reduction on the other hand and do not reach the simulated formation temperature of setting, therefore, the temperature that it can not the real simulation formation core.
Because two problems that above-mentioned core holding unit exists, the experiment test that uses this clamper to carry out obtains data and has departed from its actual value, causes certain experimental error.Yet there are no about can real simulation the patented technology of this class experimental provision of formation condition open.Therefore, need a kind of experimental provision that is used for formation core is done the rock core Physical Property Analysis of invention, should realize preheating constant temperature to the experiment formation core and by the fluid of rock core, can realize that three axial stresses load to the experiment formation core again, thereby can solve above-mentioned two problems.
Summary of the invention: but the purpose of this utility model is to provide a kind of preheating constant temperature three axial stress core holding units, but this preheating constant temperature three axial stress core holding units, can to rock core and by experiment the fluid of formation core realize preheating constant temperature, can realize that three axial stresses load to the experiment formation core again.
According to the purpose of this utility model, but a kind of preheating constant temperature three axial stress core holding units that provided, but the inlet plug locking cap of preheating constant temperature three axial stress core holding units and outlet plug locking cap are fixed on pressurized cylinder two ends radially; One is installed in axial pressure fluid cylinder end center pit, can deformation-compensated in axial sliding bar, and the distortion of compensation heat exchange coil under Axial Loads; The axial pressure liquid flowing line that the axial pressure operation valve is installed is communicated with the axial pressure fluid cylinder; The radially pressurization liquid flowing line of pressurization control valve radially is installed to be communicated with pressurized cylinder radially; Fluid intake joint pipeline, be communicated with the heat exchange coil and the axial pressure piston of the coiling of fluid intake pipeline same material, and place in the axial pressure fluid cylinder, the axial pressure piston cap is threaded with the axial pressure fluid cylinder; The packing element two ends of encapsulation rock core are installed on respectively on axial pressure piston and the outlet plug locking cap; Electric heating device is installed on the external cylindrical surface of pressurized cylinder radially; The outlet plug is communicated with the fluid outlet connection pipeline; O-ring seal sealing can deformation-compensated in axial sliding bar and axial pressure piston; Temperature sensor is pressed close to packing element sealing and is installed in radially in the pressurized cylinder; The pressure of simulated formation provides with a force (forcing) pump in the experiment test, and the temperature of simulated formation realizes that with electrically heated method big or small available computers or other control methods of simulated formation pressure and simulated formation temperature are controlled.
Aforesaid axial pressure fluid cylinder is characterized in that: this axial pressure fluid cylinder left end cap has an eccentric orfice, but coupling shaft to the pressurization liquid flowing line, left end cap also has a center pit, becomes movingly with deformation-compensated bar, has a seal groove in the hole.
Aforesaid heat exchange coil, it is characterized in that: the material of the material of heat exchange coil and fluid intake piping material and measure-alike, coil diameter is slightly less than axial pressure fluid cylinder internal diameter, coil lengths is advisable with the simulated formation temperature that the temperature in that can make fluid after the heat exchange arrive rock core equals to set, heat exchange coil one end and fluid intake joint pipeline are connected, and the center pit of the other end and axial pressure piston is connected.
Aforesaid axial pressure piston, it is characterized in that: the diameter at butt end of axial pressure piston becomes movingly and with O-ring seal to seal with axial pressure fluid cylinder internal diameter, top diameter is identical with the experiment core diameter, the axial pressure piston has a center pit, left end is communicated with heat exchange coil, and the arachnoid groove of opening on right-hand member and the end face links up.
Aforesaid axial pressure piston cap, it is characterized in that: the internal thread of axial pressure piston cap cooperates with the external thread of axial pressure fluid cylinder right-hand member, the axial pressure piston cap has a center pit, center-hole diameter is identical with the top diameter of axial pressure piston, and the external diameter of axial pressure piston cap becomes stationary fit with the bayonet socket internal diameter of packing element.
Compare with the existing core holding unit that is used for formation core is done the rock core Physical Property Analysis, but the utility model provides a kind of preheating constant temperature three axial stress core holding units, owing to designed heat exchange coil and by the axial pressure liquid flowing line, the axial pressure operation valve, the axial pressure fluid cylinder, O-ring seal, the axial pressure piston, the axial load maintainer that axial pressure piston cap etc. are formed, therefore, but its advantage is this preheating constant temperature three axial stress core holding units, can realize preheating constant temperature to the experiment formation core and by the fluid of rock core, can realize that three axial stresses load to the experiment formation core again.
Description of drawings: but a kind of preheating constant temperature three axial stress core holding unit structural drawing that Fig. 1 provides for the utility model.
Embodiment:, but provide a kind of illustrated embodiment of preheating constant temperature three axial stress core holding units as the utility model referring to Fig. 1.
But the utility model provides a kind of composition of preheating constant temperature three axial stress core holding units to be: but preheating constant temperature three axial stress core holding units are by inlet plug locking cap 1, deformation-compensated bar 2, fluid intake joint pipeline 3, axial pressure liquid flowing line 4, axial pressure operation valve 5, liquid flowing line 6 radially pressurizes, radially pressurization control valve 7, heat exchange coil 8, axial pressure fluid cylinder 9, O-ring seal 10, axial pressure piston cap 11, axial pressure piston 12, the packing element 13 of encapsulation rock core, experiment formation core 14, electric heating device 15, radially pressurized cylinder 16, outlet plug locking cap 17, outlet plug 18, fluid outlet connection pipeline 19 and temperature sensor 20 are formed.
But the utility model provides a kind of structure of preheating constant temperature three axial stress core holding units to be: inlet plug locking cap 1 and outlet plug locking cap 17 are fixed on the radially two ends of pressurized cylinder 16, packing element 13 1 ends are installed on the external cylindrical surface of outlet plug locking cap 17, and the other end is installed on the external cylindrical surface of axial pressure piston cap 11; Experiment formation core 14 is contained in the packing element 13, one end is tested formation core 14 with outlet plug 18 by cooperating precession to hold out against with outlet plug locking cap 17, other end process axial pressure liquid flowing line 4 and axial pressure operation valve 5, but by axial pressure fluid cylinder 9 pressurization impeller-hubs are held out against experiment formation core 14 to pressurizing piston 12; Fluid intake joint pipeline 3, deformation-compensated bar 2, heat exchange coil 8, axial pressure piston 12, experiment formation core 14, outlet plug 18 and fluid outlet connection pipeline 19 are communicated with; Heat exchange coil 8, axial pressure piston 12 are installed in the axial pressure fluid cylinder 9, and seal with O-ring seal, the internal thread of axial pressure piston cap 11 is connected with the left end external thread of axial pressure fluid cylinder 9, and the stroke of restrictive axial pressurizing piston 12 also provides clamping position for packing element 13; Axial pressure liquid flowing line 4 is communicated with an eccentric orfice of axial pressure fluid cylinder 9 left end caps, and axial pressure operation valve 5 installation shaft are on pressurization liquid flowing line 4; The liquid flowing line 6 that radially pressurizes is communicated with the ring cavity of pressurized cylinder 16 radially, and radially pressurization control valve 7 is installed on the liquid flowing line 6 that radially pressurizes; Electric heating device 15 is installed in radially on pressurized cylinder 16 external cylindrical surfaces; Temperature sensor 20 presses close to that packing element 13 is airtight to be installed in radially in the pressurized cylinder 16.
But the utility model provides a kind of principle of work of preheating constant temperature three axial stress core holding units to be: it is that rock core 14 is placed in the packing element 13, allow the 18 suitable precessions of outlet plug hold out against experiment formation core 14, the other end is by holding out against experiment formation core 14 to axial pressure fluid cylinder 9 pressurization impeller-hubs to pressurizing piston 12, can inject liquid to axial pressure fluid cylinder 9 with force (forcing) pump by axial pressure liquid flowing line 4 and axial pressure operation valve 5, can calculate according to the end area of moulding pressure and axial pressure piston 12 and to act on the axial stress of experiment formation core 14 on axially, liquid flowing line 6 and pressurization control valve 7 radially can be injected liquid to pressurized cylinder 16 radially with force (forcing) pump by radially pressurizeing, highly pressurised liquid enters the airtight annular space of packing element 13 and pressurized cylinder 16 radially and acts on the outer wall of packing element 13, make packing element 13 produce distortion extrusion experiment formation core 14, both can determine to act on the radial stress that experiment formation core 14 footpaths make progress according to moulding pressure, thereby three axially loaded states of experiment formation core 14 have been determined, with the pressure on stratum, the method simulated experiment formation core place; At the external cylindrical surface of pressurized cylinder 16 radially electric heating device 15 is installed also, liquid heating in 15 pairs of annular spaces of available this electric heating device, liquid passes to experiment formation core 14 with heat by packing element 13 again and makes the rock core heating, simultaneously also to deformation-compensated bar 2, heat exchange coil 8, axial pressure piston 12,9 heating of axial pressure fluid cylinder, when Experimental Flowing Object passes through deformation-compensated bar 2, heat exchange coil 8, axial pressure piston 12, when axial pressure fluid cylinder 9 flows through experiment formation core 14, because the heating path length of liquid stream process, and because of the thermal capacity of the liquid in the axial pressure fluid cylinder 9 big, before being enough to make liquid stream to flow into experiment formation core 14, reach the simulated formation temperature of setting by the heat exchange of heating coil 8, thereby simulated the formation temperature at rock core 14 places; With the reservoir pressure of being simulated in computing machine or other control methods control experiment test and the size of formation temperature.
Basic thought of the present utility model and illustrated embodiment more than have been described in detail; the person skilled in the art; do not deviating under the spirit of the present utility model and can make many changes, protection domain of the present utility model is determined by additional claims and equivalent thereof the utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246355 CN2613754Y (en) | 2003-04-18 | 2003-04-18 | Preheatable constant-temp. three axial stress core holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246355 CN2613754Y (en) | 2003-04-18 | 2003-04-18 | Preheatable constant-temp. three axial stress core holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613754Y true CN2613754Y (en) | 2004-04-28 |
Family
ID=34251992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03246355 CN2613754Y (en) | 2003-04-18 | 2003-04-18 | Preheatable constant-temp. three axial stress core holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613754Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799485A (en) * | 2010-04-12 | 2010-08-11 | 哈尔滨工业大学 | Core holder and zeta electric potential measuring system and method using same |
| CN101509982B (en) * | 2009-03-06 | 2011-05-11 | 大庆油田有限责任公司 | Core electrofiltration potential measuring gripper |
| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN102561970A (en) * | 2011-12-20 | 2012-07-11 | 大连理工大学 | Fidelity transfer device for natural drill cores of natural gas hydrates and method |
| CN102852517A (en) * | 2012-09-07 | 2013-01-02 | 中国石油天然气集团公司 | Physical simulation method and device for formation temperature and pressure one-dimensional distribution |
| CN103061729A (en) * | 2013-01-08 | 2013-04-24 | 北京科技大学 | Anaerobic simple core flooding simulation system simulating method |
| CN103245769A (en) * | 2013-04-17 | 2013-08-14 | 中国石油天然气股份有限公司 | Long core water injection test simulation system |
| CN104807958A (en) * | 2015-04-02 | 2015-07-29 | 中国石油天然气股份有限公司 | Triaxial self-positioning core holder |
| CN105158446A (en) * | 2015-10-20 | 2015-12-16 | 北京瑞莱博石油技术有限公司 | High-temperature-resisting and high-pressure-resisting sealing piston, piston rod combination and thickened oil high-pressure texture analyzer |
| CN106198346A (en) * | 2016-07-05 | 2016-12-07 | 西安交通大学 | A kind of can measure mechanics parameter and the core holding unit of permeability and measuring method |
| US10845291B2 (en) | 2017-05-16 | 2020-11-24 | King Fahd University Of Petroleum And Minerals | Radial core flooding apparatus and method for analysis of static and/or dynamic properties of reservoir rock |
-
2003
- 2003-04-18 CN CN 03246355 patent/CN2613754Y/en not_active IP Right Cessation
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509982B (en) * | 2009-03-06 | 2011-05-11 | 大庆油田有限责任公司 | Core electrofiltration potential measuring gripper |
| CN101799485A (en) * | 2010-04-12 | 2010-08-11 | 哈尔滨工业大学 | Core holder and zeta electric potential measuring system and method using same |
| CN102411044B (en) * | 2011-12-05 | 2014-04-30 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus |
| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN102561970A (en) * | 2011-12-20 | 2012-07-11 | 大连理工大学 | Fidelity transfer device for natural drill cores of natural gas hydrates and method |
| CN102852517A (en) * | 2012-09-07 | 2013-01-02 | 中国石油天然气集团公司 | Physical simulation method and device for formation temperature and pressure one-dimensional distribution |
| CN103061729B (en) * | 2013-01-08 | 2015-08-26 | 北京科技大学 | A kind of anaerobism simple and easy core flooding test simulation system analogy method |
| CN103061729A (en) * | 2013-01-08 | 2013-04-24 | 北京科技大学 | Anaerobic simple core flooding simulation system simulating method |
| CN103245769A (en) * | 2013-04-17 | 2013-08-14 | 中国石油天然气股份有限公司 | Long core water injection test simulation system |
| CN103245769B (en) * | 2013-04-17 | 2015-01-21 | 中国石油天然气股份有限公司 | Long core water injection test simulation system |
| CN104807958A (en) * | 2015-04-02 | 2015-07-29 | 中国石油天然气股份有限公司 | Triaxial self-positioning core holder |
| CN104807958B (en) * | 2015-04-02 | 2016-07-06 | 中国石油天然气股份有限公司 | A kind of three axial self-align core holding units |
| CN105158446A (en) * | 2015-10-20 | 2015-12-16 | 北京瑞莱博石油技术有限公司 | High-temperature-resisting and high-pressure-resisting sealing piston, piston rod combination and thickened oil high-pressure texture analyzer |
| CN106198346A (en) * | 2016-07-05 | 2016-12-07 | 西安交通大学 | A kind of can measure mechanics parameter and the core holding unit of permeability and measuring method |
| CN106198346B (en) * | 2016-07-05 | 2019-04-09 | 西安交通大学 | A kind of core holding unit and measurement method that can measure mechanics parameter and permeability |
| US10845291B2 (en) | 2017-05-16 | 2020-11-24 | King Fahd University Of Petroleum And Minerals | Radial core flooding apparatus and method for analysis of static and/or dynamic properties of reservoir rock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105510142B (en) | A kind of axle crushing test device of coal petrography multiphase different fluid three and test method | |
| CN102778554B (en) | Experimental device for improving permeability of shale gas storage layer in supercritical CO2 fracturing process | |
| CN104502224B (en) | Saturation water Coal Under rock isothermal desorption curve determination device and method | |
| Li et al. | Diffusion coefficients of supercritical CO2 in oil-saturated cores under low permeability reservoir conditions | |
| CN106896043B (en) | True triaxial stress Imitating crack initiation and the device for evaluating fisstured flow | |
| CN100545417C (en) | High-temperature high-pressure clay cake interface agglutination simulating-estimating device | |
| US4848145A (en) | In-situ linear flow proppant conductivity test cell | |
| CN103063557B (en) | A kind of rock gas penetration test device and assay method | |
| CN104535715B (en) | A kind of crack particle diverting agent is stifled merit rating apparatus and method temporarily | |
| AU2011294945B2 (en) | Apparatus and methods for continuous compatibility testing of subterranean fluids and their compositions under wellbore conditions | |
| CN201372765Y (en) | Testing device of rubber cylinder of packer | |
| US6817238B2 (en) | Cement expansion/contraction test apparatus | |
| CN104849194B (en) | The three axle seepage stress temperature creep coupling experiment devices based on digital picture | |
| Mazumder et al. | Swelling of coal in response to CO2 sequestration for ECBM and its effect on fracture permeability | |
| CN103510944B (en) | A kind of High Temperature High Pressure closure/prevent telling simulating-estimating device and its evaluation methodology | |
| CN202330233U (en) | Experiment test device for permeability of rock core under condition of formation pressure | |
| CN202330168U (en) | Simulation test device of separate layer fracturing layer cross flow | |
| CN103940722B (en) | The proving installation of a kind of gas bearing shale factor of porosity and absorption parameter and method | |
| US20150059447A1 (en) | Methods And Systems For Testing Fluids On Crushed Formation Materials Under Conditions Of Stress | |
| CN103076268A (en) | Permeability measurement device and measurement method in rock rheological process | |
| CN105203411A (en) | Slit shear-seepage coupling test system of triaxial cell and test method | |
| CN104236817B (en) | A kind of plunger cylinder sleeve movable sealing performance test methods and device | |
| EP0577300A2 (en) | Low permeability subterranean formation testing method | |
| CN102967525A (en) | Experiment device for replacing CH4 in adsorption storage layer by multi-phase-state CO2 and mixed gas | |
| CN101482009B (en) | High-temperature high-pressure multifunctional horizontal well damage appraisement instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |