CN102230878B - Confining pressure specimen clamper - Google Patents
Confining pressure specimen clamper Download PDFInfo
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- CN102230878B CN102230878B CN 201110164202 CN201110164202A CN102230878B CN 102230878 B CN102230878 B CN 102230878B CN 201110164202 CN201110164202 CN 201110164202 CN 201110164202 A CN201110164202 A CN 201110164202A CN 102230878 B CN102230878 B CN 102230878B
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Abstract
The invention relates to the technical field of specimen clampers of self-healing cement paste performance evaluating devices, in particular to a confining pressure specimen clamper, which comprises a first plunger, a clamping device, a positioning barrel, a plunger choke plug and a second plunger, wherein the first plunger has a cylindrical structure of which the left end is enclosed; the second plunger has a cylindrical structure; the second plunger is arranged on the right side of the first plunger; the first plunger and the second plunger are a certain distance away from each other; the outer diameter of the first plunger is equal to that of the second plunger; the left part of the first plunger is provided with an oil inlet hole which is communicated with the inside of the first plunger; an adjusting valve is fixedly arranged on the oil inlet hole; and the clamping device is fixedly arranged outside the first plunger and the second plunger. The confining pressure specimen clamper has a reasonable and compact structure; and the underground real condition can be better approached to evaluate the capability of a cement sheath for automatically repairing a crack for blocking an oil-gas layer when a micro-crack is formed on the cement sheath and meets oil gas rising upwards, so that data acquired by an evaluation device is more real.
Description
Technical field
The present invention relates to the specimen holder technical field of self-healing grout assess performance device, is a kind of clamp holder for confining pressure sample.
Background technology
After well cementing operation was completed, cement mantle was subjected to the impact of terrestrial stress, perforation, well-completion practice and produces microfracture, and cement mantle is met oil gas and can be caused oil gas to be formed by microfracture altering groove, cause the packing inefficacy; At present, the mortar architecture that addresses this problem does not also have maturation, and an external oil company released the self-healing system in 2007, at present just in experimental stage; The evaluating apparatus of the said firm can only be estimated the crack of cement mantle the first cementation interface formation and meet the ability that the self-healing of oil gas cement mantle reaches the packing effect, the microfracture of Behavior of Hardened Cement Paste body does not relate to, there is limitation in the evaluating apparatus of the said firm, and sense data simply and easily.
Summary of the invention
The invention provides a kind of clamp holder for confining pressure sample, overcome the deficiency of above-mentioned prior art, it can effectively solve evaluating apparatus and have limitation, and the problem of sense data simply and easily.
Technical scheme of the present invention realizes by following measures: a kind of clamp holder for confining pressure sample comprises the first plunger, clamping device, positioning tube, plunger caulking and the second plunger; The first plunger is the tubular of left end sealing, and the second plunger is tubular, and there is the second plunger on the first plunger right-hand, between the first plunger and the second plunger, distance arranged; The external diameter of the first plunger equates with the external diameter of the second plunger; The oil supply hole that communicates with the first plunger inside is arranged at the left part of the first plunger, be installed with variable valve on oil supply hole; External stability at the first plunger and the second plunger is equipped with clamping device, form toroidal cavity between the first plunger, the second plunger and clamping device, the confined pressure oil supply hole is arranged on the clamping device corresponding with toroidal cavity, be installed with variable valve on the confined pressure oil supply hole; Be fixedly connected with positioning tube outside the right part of the second plunger, on the positioning tube corresponding with the second plunger, fluid hole is arranged, fluid hole communicates with the inside of the second plunger, is installed with variable valve on fluid hole, is fixed with the plunger caulking that the right output port of the second plunger can be blocked in positioning tube.
The below is the further optimization and/or improvements to the foregoing invention technical scheme:
Above-mentioned clamping device can comprise gum cover, clamper cylinder, the first pretension cap and the second pretension cap; There is gum cover in the outside at the first plunger and the second plunger, left at gum cover has the first pretension cap, the second pretension cap is arranged on gum cover right-hand, there is draw-in groove outside at gum cover, the clamper cylinder is positioned at draw-in groove, on gum cover and clamper cylinder, the confined pressure oil supply hole is arranged, be fixed together outside the right part inboard of the first pretension cap and the left part of clamper cylinder, be fixed together outside the left part inboard of the second pretension cap and the right part of clamper cylinder, gum cover and clamper cylinder can be fixed on the first plunger and the second plunger by the first pretension cap and the second pretension cap.
The outer left side of the inner right side of above-mentioned the first pretension cap and clamper cylinder can be fixed together by screw thread, and the outside right side of the inside left of the second pretension cap and clamper cylinder fixedly is fixed together by screw thread.
The left part of above-mentioned the first plunger can have positioning boss, and the oil supply hole that communicates with the first plunger inside is arranged on positioning boss; The first pretension cap, gum cover and the second pretension cap are fixed on the first plunger and the second plunger between positioning boss and positioning tube.
The outside right side of above-mentioned the second plunger can be fixed with baffle ring, and the mounting groove of annular is arranged in the positioning tube inside left, and baffle ring is arranged in the mounting groove of positioning tube.
Can there be the cylindrical shell boss above-mentioned positioning tube right-hand member inboard, is fixedly connected with locating sleeve at the endoporus of cylindrical shell boss, is fixedly connected with plunger caulking in locating sleeve.
The inside of above-mentioned locating sleeve and the outside of plunger caulking can be fixed together by screw thread.
Reasonable and compact in structure of the present invention can better closely be descended truth, runs into after evaluation cement mantle body generation microfracture and alters oil gas, and cement mantle is repaired the ability of Crack Sealing oil removal gas-bearing formation automatically; This evaluating apparatus also has automatic data collection, automatic mapping function, and is simple to operate.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of most preferred embodiment of the present invention.
Coding in accompanying drawing is respectively: 1 is the first plunger, and 2 is positioning boss, and 3 is oil supply hole, 4 is variable valve, and 5 is baffle ring, and 6 is the confined pressure oil supply hole, 7 is positioning tube, and 8 is fluid hole, and 9 is plunger caulking, 10 is the second plunger, and 11 is gum cover, and 12 is the clamper cylinder, 13 is the first pretension cap, and 14 is the second pretension cap, and 15 is the cylindrical shell boss, 16 is locating sleeve, and 17 is toroidal cavity.
Embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
In the present invention, for convenience of description, the description of the relative position relation of each parts is all that the Butut mode according to Figure of description is described, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
The invention will be further described below in conjunction with embodiment and accompanying drawing:
As shown in Figure 1, this clamp holder for confining pressure sample comprises the first plunger 1, clamping device, positioning tube 7, plunger caulking 9 and the second plunger 10; The first plunger 1 is the tubular of left end sealing, and the second plunger 10 is tubular, and the first plunger 1 right-hand has between the second plunger 10, the first plungers 1 and the second plunger 10 distance is arranged; The external diameter of the first plunger 1 equates with the external diameter of the second plunger 10; The oil supply hole 3 that communicates with the first plunger inside is arranged at the left part of the first plunger 1, be installed with variable valve 4 on oil supply hole 3; External stability at the first plunger 1 and the second plunger 10 is equipped with clamping device, form toroidal cavity 17 between the first plunger 1, the second plunger 10 and clamping device, on the clamping device corresponding with toroidal cavity 17, confined pressure oil supply hole 6 is arranged, be installed with variable valve 4 on confined pressure oil supply hole 6; Be fixedly connected with positioning tube 7 outside the right part of the second plunger 10, on the positioning tube 7 corresponding with the second plunger 2, fluid hole 8 is arranged, fluid hole 8 communicates with the inside of the second plunger 10, be installed with variable valve 4 on fluid hole 8, be fixed with the plunger caulking 9 that the right output port of the second plunger 10 can be blocked in positioning tube 7.
as shown in Figure 1, clamping device comprises gum cover 11, clamper cylinder 12, the first pretension cap 13 and the second pretension cap 14, there is gum cover 11 in the outside at the first plunger 1 and the second plunger 10, left at gum cover 11 has the first pretension cap 13, the second pretension cap 14 is arranged on gum cover 11 right-hand, there is draw-in groove outside at gum cover 11, clamper cylinder 12 is positioned at draw-in groove, on gum cover 11 and clamper cylinder 12, confined pressure oil supply hole 6 is arranged, be fixed together outside the right part inboard of the first pretension cap 13 and the left part of clamper cylinder 12, be fixed together outside 14 left parts inboards of the second pretension cap and the right part of clamper cylinder 12, gum cover 11 and clamper cylinder 12 can be fixed on the first plunger 1 and the second plunger 10 by the first pretension cap 13 and the second pretension cap 14, fixed form can adopt pin to fix.
As shown in Figure 1, for the ease of installation and removal, be fixed together by screw thread outside the right part inboard of the first pretension cap 13 and the left part of clamper cylinder 12, fixedly be fixed together by screw thread outside the left part inboard of the second pretension cap 14 and the right part of clamper cylinder 12.
As shown in Figure 1, at the left part of the first plunger 1, positioning boss 2 is arranged, the oil supply hole 3 that communicates with the first plunger 1 inside is arranged on positioning boss 2; The first pretension cap 13, gum cover 11 and the second pretension cap 14 are fixed on the first plunger 1 and the second plunger 10 between positioning boss 2 and positioning tube 7.
As shown in Figure 1, be fixed with baffle ring 5 in the right part of the second plunger 10 outside, the mounting groove of annular is arranged in positioning tube 7 left part inboards, baffle ring 5 is installed in mounting groove.
As shown in Figure 1, in positioning tube 7 right-hand member inboards, cylindrical shell boss 15 is arranged, be fixedly connected with locating sleeve 16 at the endoporus of cylindrical shell boss 15, be fixedly connected with plunger caulking 9 in locating sleeve 16.
As shown in Figure 1, the outside of the inside of locating sleeve 16 and plunger caulking 9 is fixed together by screw thread.
Above technical characterictic has consisted of most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
The installation of most preferred embodiment of the present invention and use procedure: at first make a microfracture as experiment product in the Behavior of Hardened Cement Paste body, take out gum cover 11 and clamper cylinder 12, clamper cylinder 12 is arranged in the draw-in groove of gum cover 11 outsides, the Behavior of Hardened Cement Paste body is positioned in gum cover 11, the first pretension cap 13 is arranged on gum cover 11 left ends fixes, then the first plunger 1 is arranged on the inside left of gum cover 11; Again the second pretension cap 14 is arranged on gum cover 11 right parts and fixes, then the second plunger 10 is arranged in the right part of gum cover 11, the Behavior of Hardened Cement Paste body is positioned at toroidal cavity 17; And then positioning tube 7 is fixed clamping device from the right side, and block the right output port of the second plunger 14 from the inside screw-in of locating sleeve 16 with plunger caulking 9, install.
Mounted invention, liquid supply rate and the liquid supply pressure of fueller are set by imposing a condition, inject from confined pressure oil supply hole 6 confined pressure that oil provides sample, set the confined pressure value of confining pressure device, then provide fluid by inlet opening 3, flow out from fluid hole 8 by the gap on the Behavior of Hardened Cement Paste body, discharge converges on weighing device, by harvester, the liquid outlet quantity data are imported database again, draw out appraisal curve figure according to the assess performance needs, can estimate out cement mantle self-healing performance from curve map.
Claims (10)
1. a clamp holder for confining pressure sample, is characterized in that comprising the first plunger, clamping device, positioning tube, plunger caulking and the second plunger; The first plunger is the tubular of left end sealing, and the second plunger is tubular, and there is the second plunger on the first plunger right-hand, between the first plunger and the second plunger, distance arranged; The external diameter of the first plunger equates with the external diameter of the second plunger; The oil supply hole that communicates with the first plunger inside is arranged at the left part of the first plunger, be installed with variable valve on oil supply hole; External stability at the first plunger and the second plunger is equipped with clamping device, form toroidal cavity between the first plunger, the second plunger and clamping device, the confined pressure oil supply hole is arranged on the clamping device corresponding with toroidal cavity, be installed with variable valve on the confined pressure oil supply hole; Be fixedly connected with positioning tube outside the right part of the second plunger, on the positioning tube corresponding with the second plunger, fluid hole is arranged, fluid hole communicates with the inside of the second plunger, is installed with variable valve on fluid hole, is fixed with the plunger caulking that the right output port of the second plunger can be blocked in positioning tube.
2. clamp holder for confining pressure sample according to claim 1, is characterized in that clamping device comprises gum cover, clamper cylinder, the first pretension cap and the second pretension cap; There is gum cover in the outside at the first plunger and the second plunger, left at gum cover has the first pretension cap, the second pretension cap is arranged on gum cover right-hand, there is draw-in groove outside at gum cover, the clamper cylinder is positioned at draw-in groove, on gum cover and clamper cylinder, the confined pressure oil supply hole is arranged, be fixed together outside the right part inboard of the first pretension cap and the left part of clamper cylinder, be fixed together outside the left part inboard of the second pretension cap and the right part of clamper cylinder, gum cover and clamper cylinder can be fixed on the first plunger and the second plunger by the first pretension cap and the second pretension cap.
3. clamp holder for confining pressure sample according to claim 2, it is characterized in that the inner right side of the first pretension cap and the outer left side of clamper cylinder are fixed together by screw thread, the outside right side of the inside left of the second pretension cap and clamper cylinder fixedly is fixed together by screw thread.
4. clamp holder for confining pressure sample according to claim 2, is characterized in that the left part of the first plunger has positioning boss, and the oil supply hole that communicates with the first plunger inside is arranged on positioning boss; The first pretension cap, gum cover and the second pretension cap are fixed on the first plunger and the second plunger between positioning boss and positioning tube.
5. clamp holder for confining pressure sample according to claim 3, is characterized in that the left part of the first plunger has positioning boss, and the oil supply hole that communicates with the first plunger inside is arranged on positioning boss; The first pretension cap, gum cover and the second pretension cap are fixed on the first plunger and the second plunger between positioning boss and positioning tube.
6. clamp holder for confining pressure sample according to claim 1 and 2, is characterized in that the outside right side of the second plunger is fixed with baffle ring, and the mounting groove of annular is arranged in the positioning tube inside left, and baffle ring is arranged in the mounting groove of positioning tube.
7. clamp holder for confining pressure sample according to claim 5, is characterized in that the outside right side of the second plunger is fixed with baffle ring, and the mounting groove of annular is arranged in the positioning tube inside left, and baffle ring is arranged in the mounting groove of positioning tube.
8. clamp holder for confining pressure sample according to claim 1 and 2 is characterized in that there is the cylindrical shell boss positioning tube right-hand member inboard, is fixedly connected with locating sleeve at the endoporus of cylindrical shell boss, is fixedly connected with plunger caulking in locating sleeve.
9. clamp holder for confining pressure sample according to claim 7 is characterized in that there is the cylindrical shell boss positioning tube right-hand member inboard, is fixedly connected with locating sleeve at the endoporus of cylindrical shell boss, is fixedly connected with plunger caulking in locating sleeve.
10. the clamp holder for confining pressure sample of stating according to claim 9 is characterized in that the inside of locating sleeve and the outside of plunger caulking are fixed together by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164202 CN102230878B (en) | 2011-06-18 | 2011-06-18 | Confining pressure specimen clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164202 CN102230878B (en) | 2011-06-18 | 2011-06-18 | Confining pressure specimen clamper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230878A CN102230878A (en) | 2011-11-02 |
| CN102230878B true CN102230878B (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110164202 Active CN102230878B (en) | 2011-06-18 | 2011-06-18 | Confining pressure specimen clamper |
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| Country | Link |
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| CN (1) | CN102230878B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485762B (en) * | 2012-06-08 | 2017-02-01 | 中国石油化工股份有限公司 | Visual simulation shale micro-crack plugging capacity test system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88105876A (en) * | 1988-03-14 | 1988-09-28 | 四川石油管理局川西南矿区地质大队 | The core high pressure oozes, hole analyzer and using method |
| CN2204421Y (en) * | 1994-07-30 | 1995-08-02 | 中国石油天然气总公司石油勘探开发科学研究院廊坊分院 | Device for measuring diffusion-coefficient of rock |
| CN201527390U (en) * | 2009-11-04 | 2010-07-14 | 山东中石大石仪科技有限公司 | Core holding unit with adjustable quick installation core plug |
| CN202101896U (en) * | 2011-06-18 | 2012-01-04 | 中国石油集团西部钻探工程有限公司 | Clamp holder for confining pressure sample |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2716536B1 (en) * | 1994-02-22 | 1996-04-26 | Geophysique Cie Gle | Method and device for measuring the permeability of a rock medium. |
-
2011
- 2011-06-18 CN CN 201110164202 patent/CN102230878B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88105876A (en) * | 1988-03-14 | 1988-09-28 | 四川石油管理局川西南矿区地质大队 | The core high pressure oozes, hole analyzer and using method |
| CN2204421Y (en) * | 1994-07-30 | 1995-08-02 | 中国石油天然气总公司石油勘探开发科学研究院廊坊分院 | Device for measuring diffusion-coefficient of rock |
| CN201527390U (en) * | 2009-11-04 | 2010-07-14 | 山东中石大石仪科技有限公司 | Core holding unit with adjustable quick installation core plug |
| CN202101896U (en) * | 2011-06-18 | 2012-01-04 | 中国石油集团西部钻探工程有限公司 | Clamp holder for confining pressure sample |
Non-Patent Citations (1)
| Title |
|---|
| 冉训等.岩心高压三轴向物性测试仪.《天然气工业》.1998,第18卷(第6期), * |
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| CN102230878A (en) | 2011-11-02 |
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