CN101761333B - Multi-functional true triaxial stress cinder heart clamp holder - Google Patents
Multi-functional true triaxial stress cinder heart clamp holder Download PDFInfo
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- CN101761333B CN101761333B CN2010101220208A CN201010122020A CN101761333B CN 101761333 B CN101761333 B CN 101761333B CN 2010101220208 A CN2010101220208 A CN 2010101220208A CN 201010122020 A CN201010122020 A CN 201010122020A CN 101761333 B CN101761333 B CN 101761333B
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Abstract
The invention relates to a multi-functional true triaxial stress cinder heart clamp holder, belonging to the technical field of hydrocarbon reservoir and coal bed methane protection and damage assessment. The clamp holder is composed of an X axis pressurizing piston, a left fixed block, a clamp holder barrel, a rubber cylinder, a right plunger piston, a right fixed block, a Y axis pressurizing plunger piston and the like. The left end of the clamp holder barrel is provided with the left fixed block and the X axis screw cover, the right fixed block is provided with the X axis pressurizing plunger piston, the left end of the clamp holder barrel is provided with the right fixed block and the right plunger piston, the rubber cylinder is arranged between the left fixed block and the right fixed block. The clamp holder places a sample into the rubber cylinder, then axial load of X, Y and Z axis is respectively controlled by three force pumps with different pressure, finally fluid permeability experiment can be carried out in the presence of true triaxial stress. Dynamic pollution process of slurry in the drilling process such as underbalance, positive differential pressure, balance and the like can be stimulated when a slurry channel is opened. As a result, the problem that in the existing assessment experiment, false triaxial clamp holder can not load different axial load in three axial directions.
Description
Technical field:
The present invention relates to the multi-functional true triaxial stress cinder heart clamp holder under a kind of simulated oil gas reservoir and the coalbed methane reservoir condition, belong to the protection of oil-gas Layer and coal bed gas and damage evaluation tester technical field.
Background technology:
Present Simulation evaluation oil reservoir gas and coal bed gas reserves, and used simulation coal seam coal heart clamp holder in drilling fluid, the evaluation test of completion fluid to the reservoir damage degree in the drilling process, all be based on permeability test under the one dimension confined pressure condition or the permeability test under two-dimentional confined pressure and the axial compression condition.Because the reservoir stress state is not quite similar, also be not quite similar at the formation water square stress that makes progress, so one dimension or two-dimensional stress clamper can not reflect the stress of reservoir and the STRESS VARIATION situation in the recovery process truly, and reservoir permeability is with the variation rule rate of former geostatic stress.Development along with drilling technology, science is the Changing Pattern of the reservoir permeability under the simulated formation stress condition truly, and under true triaxiality state, the dynamic pollution course of mud in the drilling process such as simulation underbalance, positive differential pressure, balance, make reservoir pollution process and seepage flow test process integrated, the stress effect of avoiding the multiple clamping coal sample to produce has become problem demanding prompt solution in oil drilling and the scientific research project.
Summary of the invention:
The object of the invention is to: a kind of permeability test for reservoir under high-temperature and high-pressure conditions and true condition of triaxial stress is provided, the dynamic pollution course of mud in energy simulated oil gas reservoir and the coalbed methane reservoir environment drilling process, the contaminated degree of overall merit reservoir and the degree of depth; And multi-functional true triaxial stress cinder heart clamp holder simple in structure, easy to operate.
The present invention realizes above-mentioned purpose by the following technical solutions:
A kind of multi-functional true triaxial stress cinder heart clamp holder, it is comprised of X-axis gland, left adjusting nut, X-axis pressure plunger, left hold-down nut, left fixed block, clamper cylindrical shell, packing element, hydraulic fill pipeline interface, right plunger, right hold-down nut, right fixed block, right adjusting nut, Y-axis gland, Y-axis pressure plunger, it is characterized in that: the left end of clamper cylindrical shell is fixed with a left fixed block by left hold-down nut, the X-axis pressure plunger is installed in the left fixed block, and the right-hand member of X-axis pressure plunger is square; The left end of left fixed block is fixed with an X-axis gland by left adjusting nut, and the central fovea borehole jack of X-axis gland is contained in the left end of X-axis pressure plunger, and the X-axis pressure plunger is connected with the X-axis gland by set screw; The right-hand member of clamper cylindrical shell is fixed with a right fixed block by right hold-down nut, is fixed with right plunger by right adjusting nut in the right fixed block; The packing element that is square inside and outside being equipped with between left fixed block and the right fixed block, the left end of packing element is sleeved on X-axis pressure plunger and the left fixed block, and the right-hand member of packing element is fixed on the right fixed block.
The upper and lower of described clamper cylindrical shell is equipped with hydraulic fill pipeline interface and phenyl tetrafluoride pad; By bolt the Y-axis gland is installed on the front and back side of clamper cylindrical shell, the Y-axis gland is connected with the Y-axis pressure plunger by extension spring.
Have axial compression pressurization mouth on described X-axis gland, Y-axis gland, the clamper cylindrical shell, X-axis is housed on the axial compression pressurization mouth presses conduit, Y-axis to press conduit and Z axis pressure conduit; Have fluid intake on the X-axis pressure plunger, have fluid issuing on the right plunger.
On described clamper cylindrical shell, left fixed block, X-axis gland, the right fixed block alignment pin is installed.
On described X-axis pressure plunger, left fixed block, right fixed block, right plunger, Y-axis gland, the Y-axis pressure plunger O RunddichtringO is housed; On described X-axis gland, left fixed block, right fixed block, the right plunger axle jump ring is housed.
The present invention's beneficial effect compared with prior art is:
This multi-functional true triaxial stress cinder heart clamp holder is packed laboratory sample into behind the packing element, connect respectively three compression pumps by the axial compression conduit, the axial compression of X-axis, Y-axis, Z axis is by three compression pump controls, three axial compressions can be different, can carry out the fluid permeability test experiments under the true condition of triaxial stress, realize the triaxial stress cinder heart experiment of reservoir samples truly.And after right plunger withdrawed from certain distance, open slurry channel, be used under the true three-dimensional pressure state, the dynamic pollution course of mud in the drilling process such as simulation underbalance, positive differential pressure, balance, make reservoir pollution process and seepage flow test process integrated, avoid the multiple clamping coal sample to produce stress effect.Solve puppet three axle clampers commonly used in the present evaluation experimental and can not three problems that axially load different axial compressions, overcome the defective that fluid displacement experiment, mud contamination test, gas-liquid two-phase displacement experiment will carry out separately.The variation rule rate of energy authentic assessment reservoir permeability under true condition of triaxial stress, and easy to operate, applicable flexibly.
Description of drawings:
Fig. 1 is the X-direction structural representation of multi-functional true triaxial stress cinder heart clamp holder;
Fig. 2 is the Y direction structural representation of multi-functional true triaxial stress cinder heart clamp holder.
Among the figure: 1, X-axis is pressed conduit, 2, fluid intake, 3, the X-axis gland, 4, the axle jump ring, 5, left adjusting nut, 6, the O RunddichtringO, 7, the X-axis pressure plunger, 8, left hold-down nut, 9, left fixed block, 10, set screw, 11, alignment pin, 12, the clamper cylindrical shell, 13, packing element, 14, sample, 15, the hydraulic fill pipeline interface, 16, phenyl tetrafluoride pad, 17, right plunger, 18, right hold-down nut, 19, right fixed block, 20, right adjusting nut, 21, fluid issuing, 22, Y-axis is pressed conduit, 23, bolt, 24, the Y-axis gland, 25, the Y-axis pressure plunger, 26, Z axis is pressed conduit, 27, extension spring.
The specific embodiment:
This multi-functional true triaxial stress cinder heart clamp holder is comprised of X-axis gland 3, left adjusting nut 5, X-axis pressure plunger 7, left hold-down nut 8, left fixed block 9, clamper cylindrical shell 12, packing element 13, hydraulic fill pipeline interface 15, right plunger 17, right hold-down nut 18, right fixed block 19, right adjusting nut 20, Y-axis gland 24, Y-axis pressure plunger 25.The left end of clamper cylindrical shell 12 is fixed with a left fixed block 9 by left hold-down nut 8, in the left fixed block 9 X-axis pressure plunger 7 is installed, and the right-hand member of X-axis pressure plunger 7 is square.The left end of left fixed block 9 is fixed with an X-axis gland 3 by left adjusting nut 5, and the central fovea borehole jack of X-axis gland 3 is contained in the left end of X-axis pressure plunger 7, and X-axis pressure plunger 7 is connected with X-axis gland 3 by set screw 10.The right-hand member of clamper cylindrical shell 12 is equipped with a right fixed block 19 by right hold-down nut 18, by right adjusting nut 20 right plunger 17 is housed in the right fixed block 19; Right plunger 17 carries out left and right adjusting by right adjusting nut 20, moves by left and right adjusting, can realize opening or closing the function of mud contamination passage.The packing element 13 that is square inside and outside being equipped with between left fixed block 9 and the right fixed block 19, the left end of packing element 13 are sleeved on X-axis pressure plunger 7 and the left fixed block 9, and the right-hand member of packing element 13 is fixed on the right fixed block 19.
The upper and lower of clamper cylindrical shell 12 is equipped with hydraulic fill pipeline interface 15, hydraulic fill pipeline interface 15 is by phenyl tetrafluoride pad 16 and 12 sealings of clamper cylindrical shell, hydraulic fill pipeline interface 15 communicates with garden shape passage on the right fixed block 19, when right plunger 17 moved right the regulation displacement, the hydraulic fill pipeline interface 15 of upper and lower formed a complete access way.
By bolt 23 Y-axis gland 24 is installed on the front and back side of clamper cylindrical shell 12, Y-axis gland 24 is connected with Y-axis pressure plunger 25 by extension spring 27, and extension spring 27 can guarantee to reset behind Y-axis axial compression venting, and the sample 14 of being convenient to test takes out from packing element 13.
Have axial compression pressurization mouth on X-axis gland 3, Y-axis gland 24, the clamper cylindrical shell 12, X-axis is housed on the axial compression pressurization mouth presses conduit 1, Y-axis to press conduit 22 and Z axis to press conduit 26, and press conduit 1, Y-axis pressure conduit 22, Z axis to press conduit 26 to be connected with axial compression force (forcing) pump (not shown in FIG.) respectively by X-axis.Have fluid intake 2 on the X-axis pressure plunger 7, have fluid issuing 21 on the right plunger 17, fluid intake 2 is connected with the outlet measuring container with the injection container by pipeline respectively with fluid issuing 21.
Be separately installed with alignment pin 11 on clamper cylindrical shell 12, left fixed block 9, X-axis gland 3, the right fixed block 19; By the set screw 10 on alignment pin 11 and the X-axis pressure plunger 7, can guarantee that the X-direction (or clamper axial direction) of left fixed block 9, X-axis gland 3, X-axis pressure plunger 7, right fixed block 19 is consistent.
On X-axis pressure plunger 7, left fixed block 9, right fixed block 19, right plunger 17, Y-axis gland 24, the Y-axis pressure plunger 25 O RunddichtringO 6 is housed respectively, can forms convenient and swift effective sealing by corresponding O RunddichtringO 6.The axle jump ring 4 of corresponding size is housed respectively on X-axis gland 3, left fixed block 9, right fixed block 19, the right plunger 17, prevents its axial play.
During experiment, laboratory sample 14 is packed in the packing element 13, the X-axis of packing into pressure plunger 7 and X-axis gland 3, pack into and hold out against right plunger 17, press conduit 1, Y-axis to press conduit 22, Z axis to press conduit 26 to be connected with the axial compression force (forcing) pump respectively X-axis, fluid intake 2 is connected with the outlet measuring container with the injection container by pipeline respectively with fluid issuing 21.After Z-axis direction had loaded pressure, packing element 13 formed effective sealing with left fixed block 9, right fixed block 19; The sample 14 of experiment contacts with right fixed block 19, presses conduit 1 to add X-axis to X-axis pressure plunger 7 by the X-axis on the X-axis gland 3 again and presses, and presses conduit 22 to add Y-axis to Y-axis pressure plunger 25 by the Y-axis on the Y-axis gland 24 and presses, press conduit 26 to add Z axis by Z axis and press.The axial compression of X-axis, Y-axis, Z axis is by three axial compression force (forcing) pump controls, and three axial compressions can be not identical, can carry out the fluid permeability test experiments under the true triaxial stress cinder heart condition.
Claims (5)
1. multi-functional true triaxial stress cinder heart clamp holder, it is by X-axis gland (3), left adjusting nut (5), X-axis pressure plunger (7), left hold-down nut (8), left fixed block (9), clamper cylindrical shell (12), packing element (13), hydraulic fill pipeline interface (15), right plunger (17), right hold-down nut (18), right fixed block (19), right adjusting nut (20), Y-axis gland (24), Y-axis pressure plunger (25) forms, it is characterized in that: the left end of clamper cylindrical shell (12) is fixed with a left fixed block (9) by left hold-down nut (8), X-axis pressure plunger (7) is installed in the left fixed block (9), and the right-hand member of X-axis pressure plunger (7) is square; The left end of left fixed block (9) is fixed with an X-axis gland (3) by left adjusting nut (5), the central fovea borehole jack of X-axis gland (3) is contained in the left end of X-axis pressure plunger (7), and X-axis pressure plunger (7) is connected with X-axis gland (3) by set screw (10); The right-hand member of clamper cylindrical shell (12) is fixed with a right fixed block (19) by right hold-down nut (18), is fixed with right plunger (17) by right adjusting nut (20) in the right fixed block (19); The packing element (13) that is square inside and outside being equipped with between left fixed block (9) and the right fixed block (19), the left end of packing element (13) is sleeved on X-axis pressure plunger (7) and the left fixed block (9), and the right-hand member of packing element (13) is fixed on the right fixed block (19).
2. multi-functional true triaxial stress cinder heart clamp holder according to claim 1, it is characterized in that: the upper and lower of described clamper cylindrical shell (12) is equipped with hydraulic fill pipeline interface (15) and phenyl tetrafluoride pad (16); By bolt Y-axis gland (24) is installed on the front and back side of clamper cylindrical shell (12), Y-axis gland (24) is connected with Y-axis pressure plunger (25) by extension spring (27).
3. multi-functional true triaxial stress cinder heart clamp holder according to claim 1, it is characterized in that: have axial compression pressurization mouth on described X-axis gland (3), Y-axis gland (24), the clamper cylindrical shell (12), X-axis is housed on the axial compression pressurization mouth presses conduit (1), Y-axis to press conduit (22) and Z axis pressure conduit (26); Have fluid intake (2) on the X-axis pressure plunger (7), have fluid issuing (21) on the right plunger (17).
4. multi-functional true triaxial stress cinder heart clamp holder according to claim 1 is characterized in that: on described clamper cylindrical shell (12), left fixed block (9), X-axis gland (3), the right fixed block (19) alignment pin (11) is installed.
5. multi-functional true triaxial stress cinder heart clamp holder according to claim 1 is characterized in that: on described X-axis pressure plunger (7), left fixed block (9), right fixed block (19), right plunger (17), Y-axis gland (24), the Y-axis pressure plunger (25) O RunddichtringO (6) is housed; On described X-axis gland (3), left fixed block (9), right fixed block (19), the right plunger (17) axle jump ring (4) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101220208A CN101761333B (en) | 2010-03-03 | 2010-03-03 | Multi-functional true triaxial stress cinder heart clamp holder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101220208A CN101761333B (en) | 2010-03-03 | 2010-03-03 | Multi-functional true triaxial stress cinder heart clamp holder |
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| CN101761333A CN101761333A (en) | 2010-06-30 |
| CN101761333B true CN101761333B (en) | 2013-01-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353584A (en) * | 2011-05-19 | 2012-02-15 | 山东中石大石仪科技有限公司 | Cylindrical rock core true triaxial gripper |
| CN103149118A (en) * | 2013-01-28 | 2013-06-12 | 中国石油大学(华东) | Carbonaceous shale isothermal adsorption/desorption experimental device |
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| CN2164460Y (en) * | 1993-07-03 | 1994-05-11 | 江汉石油学院 | Rock core holder |
| US5493226A (en) * | 1994-04-08 | 1996-02-20 | Mobile Oil Corporation | Method and apparatus for measuring properties of core samples including heating and pressurizing the core sample and measuring the dynamic and static capillary pressure of water in the core sample |
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2010
- 2010-03-03 CN CN2010101220208A patent/CN101761333B/en not_active Expired - Fee Related
Patent Citations (8)
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|---|---|---|---|---|
| CN2164460Y (en) * | 1993-07-03 | 1994-05-11 | 江汉石油学院 | Rock core holder |
| US5493226A (en) * | 1994-04-08 | 1996-02-20 | Mobile Oil Corporation | Method and apparatus for measuring properties of core samples including heating and pressurizing the core sample and measuring the dynamic and static capillary pressure of water in the core sample |
| CN2682411Y (en) * | 2004-04-02 | 2005-03-02 | 中国石油天然气集团公司 | High temperature and high pressure core dynamic damage evaluation tester |
| CN1677082A (en) * | 2004-04-02 | 2005-10-05 | 中国石油天然气集团公司 | High temperature, high pressure core dynamic harm valuation test instrument |
| CN2703257Y (en) * | 2004-04-19 | 2005-06-01 | 余维初 | Intelligent high temperature and high pressure kinetic water loss meter |
| JP2006336435A (en) * | 2005-06-06 | 2006-12-14 | National Institute Of Advanced Industrial & Technology | Temperature gradient addition type core holder device and component output behavior time variation measuring method using the same |
| AU2008244375A1 (en) * | 2007-04-26 | 2008-11-06 | Shell Internationale Research Maatschappij B.V. | Formation core sample holder assembly and testing method |
| CN201635733U (en) * | 2010-03-03 | 2010-11-17 | 中国石油集团钻井工程技术研究院 | Multifunctional true tri-axial stress coal core clamp holder |
Non-Patent Citations (1)
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| CN101761333A (en) | 2010-06-30 |
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