CN102419363B - Core clamping mechanism - Google Patents
Core clamping mechanism Download PDFInfo
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- CN102419363B CN102419363B CN201110396446.7A CN201110396446A CN102419363B CN 102419363 B CN102419363 B CN 102419363B CN 201110396446 A CN201110396446 A CN 201110396446A CN 102419363 B CN102419363 B CN 102419363B
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- burden pressure
- plug
- cylinder
- core
- clamping mechanism
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Abstract
The invention relates to a core clamping mechanism. The core clamping mechanism is provided with a cylindrical clamp holder barrel, wherein the inner hole of the barrel is conical and is coincided with the outer wall of an oppositely-opened conical sleeve; one end of the barrel is provided with an external thread which is connected with a burden pressure cylinder, and the other end of the barrel is provided with an internal thread which is connected with an end sleeve; the inner hole of the oppositely-opened conical sleeve is cylindrical; a thin-wall Hastalloy barrel is arranged in the oppositely-opened conical sleeve; the outer wall of the thin-wall Hastalloy barrel is cylindrical and is coincided with the inner hole of the oppositely-opened conical sleeve; the large-head section of the oppositely-opened conical sleeve is provided with external threads and is fastened by a fastening nut; an experiment core is arranged in the thin-wall Hastalloy barrel; an end surface on the upstream of the core is contacted with a burden pressure plug; the burden pressure plug is extended out of the burden pressure cylinder; an end surface on the downstream of the core is contacted with a downstream plug; and the downstream plug is extended out of the end sleeve. By the mechanism, the accuracy of an experiment result is ensured.
Description
Technical field
The present invention relates to a kind of oil, clamping device that geology, exploration industry carry out Diagn simulated experiment, specifically a kind of core clamping mechanism.
Background technology
In order to simulate in actual formation burial diagenesis process, the consecutive variations situation of reservoir physical parameter under compaction, utilizing different made ground matter samples, is a kind of main path to the simulated experiment of sandstone Compaction, and wherein core clamping mechanism is requisite parts in experimentation.Existing core holding unit is made up of shell, rubber tube, the left top of rock core, the right top of rock core, left fixed muffle, right fixed muffle, left fastening sleeve, right fastening sleeve and fixed support mostly.Whole clamper and internal part are cylindrical tube, during test not only rock core pick and place difficulty, most importantly stressed problem, add fluid or gas by entrance mostly owing to testing, core clamping mechanism bears larger acting force, easily causes damage to core clamping mechanism, simultaneously, core clamping mechanism high temperature resistant, corrosion resistance is all poor, thus have impact on the mensuration of experimental index.Simultaneously, what existing instrument used is still the Kazakhstan core holding unit of conventional flowing experiment, it uses rubber tube to coordinate hydraulic pressure to clamp rock core, heatproof due to rubber the highest 250 DEG C (of short duration use), so just limit the highest test temperature of instrument, at high temperature rubber can soften, and softening rubber under high pressure creep can occur, so again limit the highest experimental pressure of instrument.Therefore development function is complete, and the analogue means of all technical and the overall antiseptic property excellence of instrument becomes inevitable.
Summary of the invention
The object of the present invention is to provide the core clamping mechanism used in a kind of Diagenesis simulation experimental apparatus, ensure the accuracy of experimental result.
Technical scheme of the present invention is: a kind of core clamping mechanism, described core clamping mechanism has a columniform clamper cylindrical shell, cylinder bore is taper, this taper coincide with the outer wall splitting taper sheath, there is external thread one end of cylindrical shell, connect burden pressure cylinder, the other end is internal thread, link cover, it is cylindrical for splitting taper sheath endoporus, has thin-walled Hastelloy cylinder in it, the outer wall of thin-walled Hastelloy cylinder be cylindrical and with split taper sheath endoporus and coincide, the major part section of splitting taper sheath has external thread, and fastening with clamp nut; The in-built experiment rock core of thin-walled Hastelloy cylinder, the upstream face of rock core contacts with burden pressure plug, and burden pressure plug stretches out burden pressure cylinder, and downstream end face contacts with downstream plug, downstream plug external part cover.
Preferably: burden pressure plug is made up of the right cylinder of three sections of different-diameters, right section contacts with rock core, and diameter equals the diameter of rock core, stage casing and burden pressure plug contact internal walls, largest diameter, and left section of diameter is minimum and stretch out in burden pressure cylinder; There is a through hole at the center of burden pressure plug, and outer end is core clamping mechanism entrance, the inner upstream face connecting rock core.
Preferably: described downstream plug is made up of the right cylinder of two sections of different-diameters, left section contacts with rock core, and diameter equals the diameter of rock core, right section of diameter is less than left section, and stretch out in block and end cover, there is a through hole at the center of downstream plug, and outer end is core clamping mechanism outlet; Block gear is being split between taper sheath and end cover.
Preferably: described burden pressure plug is provided with burden pressure entrance.
Preferably: the outer setting of described core clamping mechanism has heating mechanism, heating mechanism comprise heating watt and heat-insulation layer.
Preferably: burden pressure plug and all have seal between downstream plug and thin-walled Hastelloy cylinder.
Preferably: between burden pressure plug and the burden pressure inside wall of cylinder, have an O type circle.
Preferably: between the outer wall of burden pressure plug and burden pressure cylinder, have the 2nd O type circle.
Beneficial effect of the present invention is: 1, replace rubber tube with thin-walled Hastelloy cylinder, solve the heatproof of rubber tube, problem of withstand voltage, Hastelloy is the metal alloy that acid and alkali-resistance is best so far simultaneously, also solves corrosion-resistant problem; The effect of 2, splitting taper sheath fits with the endoporus of clamper cylindrical shell to form pressure-bearing body, supports the high pressure in thin-walled Hastelloy cylinder while internally confining thin-walled Hastelloy cylinder, and the operation of loading rock core is convenient to again in the design of splitting; What 3, the design of burden pressure cylinder and burden pressure plug ensure that burden pressure in experiment puts on control; 4, heating watt and the length of heat-insulation layer are only wrapped on the clamper cylindrical shell from burden pressure cylinder right-hand member, while the experimental temperature ensureing rock core, turn avoid upper-coated pressure system temperature too high, avoid the risk that the O type circle in upper-coated pressure system at high temperature lost efficacy.
Accompanying drawing explanation
Fig. 1 is the structural representation of core clamping mechanism of the present invention
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described:
A kind of core clamping mechanism, described core clamping mechanism has a columniform clamper cylindrical shell 1-10, cylinder bore is taper, this taper coincide with the outer wall splitting taper sheath 1-11, there is external thread one end of cylindrical shell, connect burden pressure cylinder 1-3, the other end is internal thread, link cover 1-16, it is cylindrical for splitting taper sheath 1-11 endoporus, thin-walled Hastelloy cylinder 1-12 is had in it, the outer wall of thin-walled Hastelloy cylinder 1-12 be cylindrical and with split taper sheath 1-11 endoporus and coincide, the major part section of splitting taper sheath 1-11 has external thread, and it is fastening with clamp nut 1-1, thin-walled Hastelloy cylinder 1-12 in-built experiment rock core 1-9, the upstream face of rock core 1-9 contacts with burden pressure plug 1-5, and burden pressure plug 1-5 stretches out burden pressure cylinder 1-3, and downstream end face contacts with downstream plug 1-15, downstream plug 1-15 external part cover 1-16.
Burden pressure plug 1-5 is made up of the right cylinder of three sections of different-diameters, and right section contacts with rock core 1-9, and diameter equals the diameter of rock core 1-9, stage casing and burden pressure plug 1-5 contact internal walls, largest diameter, and left section of diameter is minimum and stretch out in burden pressure cylinder 1-3; There is a through hole at the center of burden pressure plug 1-5, and outer end is core clamping mechanism entrance 1-4, the inner upstream face connecting rock core 1-9.
Described downstream plug 1-15 is made up of the right cylinder of two sections of different-diameters, left section contacts with rock core 1-9, diameter equals the diameter of rock core 1-9, right section of diameter is less than left section, and stretch out in block 1-13 and end cover 1-16, there is a through hole at the center of downstream plug 1-15, and outer end is core clamping mechanism outlet 1-14; Block 1-13 keeps off and splitting between taper sheath 1-11 and end cover 1-16.
Described burden pressure plug 1-5 is provided with burden pressure entrance 1-2.
The outer setting of described core clamping mechanism has heating mechanism, and heating mechanism comprises heating watt 2-1 and heat-insulation layer 2-2.
Seal 1-8 is all had between burden pressure plug 1-5 and downstream plug 1-15 and thin-walled Hastelloy cylinder 1-12.
An O type circle 1-7 is had between burden pressure plug 1-5 and burden pressure cylinder 1-3 inwall.
The 2nd O type circle 1-6 is had between the outer wall of burden pressure plug 1-5 and burden pressure cylinder 1-3.
The present invention is used to carry out following experiment:
1) Diagn to rock when various fluid and rock under high-temperature and high-pressure conditions move Static Contact can be simulated, as acid Diagn, alkali diagenesis, corrosion etc.;
2) compaction of energy simulation test is on the impact of diagenetic process;
3) can the change of dynamic monitoring core permeability in the process of Petrogenetic Simulation, the change of factor of porosity;
4) can the change of dynamic monitoring fluid composition in the process of Petrogenetic Simulation;
Claims (1)
1. a core clamping mechanism, it is characterized in that: described core clamping mechanism has a columniform clamper cylindrical shell (1-10), cylinder bore is taper, this taper coincide with the outer wall splitting taper sheath (1-11), there is external thread one end of cylindrical shell, connect burden pressure cylinder (1-3), the other end is internal thread, link cover (1-16), it is cylindrical for splitting taper sheath (1-11) endoporus, thin-walled Hastelloy cylinder (1-12) is had in it, the outer wall of thin-walled Hastelloy cylinder (1-12) be cylindrical and with split taper sheath (1-11) endoporus and coincide, the major part section of splitting taper sheath (1-11) has external thread, and it is fastening with clamp nut (1-1), the in-built experiment rock core (1-9) of thin-walled Hastelloy cylinder (1-12), the upstream face of rock core (1-9) contacts with burden pressure plug (1-5), burden pressure plug (1-5) stretches out burden pressure cylinder (1-3), downstream end face contacts with downstream plug (1-15), downstream plug (1-15) external part cover (1-16), burden pressure plug (1-5) is made up of the right cylinder of three sections of different-diameters, right section contacts with rock core (1-9), diameter equals the diameter of rock core (1-9), stage casing and burden pressure cylinder (1-3) contact internal walls, largest diameter, left section of diameter is minimum and stretch out in burden pressure cylinder (1-3), there is a through hole at the center of burden pressure plug (1-5), outer end is core clamping mechanism entrance (1-4), the inner upstream face connecting rock core (1-9), described downstream plug (1-15) is made up of the right cylinder of two sections of different-diameters, left section contacts with rock core (1-9), diameter equals the diameter of rock core (1-9), right section of diameter is less than left section, and stretch out in block (1-13) and end cover (1-16), there is a through hole at the center of downstream plug (1-15), and outer end is core clamping mechanism outlet (1-14), block (1-13) gear is being split between taper sheath (1-11) and end cover (1-16), described burden pressure plug (1-5) is provided with burden pressure entrance (1-2), the outer setting of described core clamping mechanism has heating mechanism, heating mechanism comprises heating watt (2-1) and heat-insulation layer (2-2), burden pressure plug (1-5) and all have seal (1-8) between downstream plug (1-15) and thin-walled Hastelloy cylinder (1-12), an O type circle (1-7) is had between burden pressure plug (1-5) and burden pressure cylinder (1-3) inwall, the 2nd O type circle (1-6) is had between the outer wall of burden pressure plug (1-5) and burden pressure cylinder (1-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396446.7A CN102419363B (en) | 2011-12-05 | 2011-12-05 | Core clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396446.7A CN102419363B (en) | 2011-12-05 | 2011-12-05 | Core clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102419363A CN102419363A (en) | 2012-04-18 |
| CN102419363B true CN102419363B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110396446.7A Expired - Fee Related CN102419363B (en) | 2011-12-05 | 2011-12-05 | Core clamping mechanism |
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| CN (1) | CN102419363B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163280B (en) * | 2013-02-22 | 2015-10-14 | 中国石油天然气股份有限公司 | Reaction device for simulating sedimentary rock diagenetic process |
| CN103823042B (en) * | 2014-03-07 | 2016-01-20 | 中国科学院地质与地球物理研究所 | Petrophysical parameter experiment probe under the full cementstone High Pressure Drain condition of a kind of measurement |
| CN104267174A (en) * | 2014-10-25 | 2015-01-07 | 吴建平 | Rock core holder |
| CN104596908B (en) * | 2015-01-28 | 2017-02-22 | 太原理工大学 | Test sample sealing device for high-temperature and high-pressure measurement for shear-flow of rock |
| CN104568703B (en) * | 2015-01-29 | 2015-09-16 | 南通市中京机械有限公司 | Cover pressure hole and ooze clamper |
| CN104677805B (en) * | 2015-03-20 | 2018-11-02 | 中国海洋石油集团有限公司 | A kind of the rock core damage evaluation experimental method and pollution kettle of core holding unit |
| CN104792971B (en) * | 2015-04-23 | 2016-07-13 | 中国石油天然气股份有限公司勘探开发研究院廊坊分院 | A kind of grasping system suitable in many specifications rock core |
| CN106353479B (en) * | 2016-08-05 | 2019-07-19 | 西南石油大学 | Full-hole core clamper and full-hole core are acidified simulator |
| CN106769165B (en) * | 2016-09-29 | 2020-05-08 | 中国石油天然气股份有限公司 | Core clamping system |
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| US4542655A (en) * | 1984-05-09 | 1985-09-24 | University Of Alabama | Borehole stress-meter and method and apparatus for the installation thereof |
| US4710948A (en) * | 1985-12-13 | 1987-12-01 | Atlantic Richfield Company | Geologic core holder with composite barrel |
| CN101446542A (en) * | 2008-12-15 | 2009-06-03 | 南通市飞宇石油科技开发有限公司 | Triaxial core holder |
| CN101576471A (en) * | 2009-04-27 | 2009-11-11 | 中国石油大学(北京) | Test device for realizing multiphase pipe flow and washing erosion in high-temperature high-pressure reaction kettle |
| CN102162784A (en) * | 2010-12-17 | 2011-08-24 | 中国石油天然气股份有限公司 | Heterogeneous multi-layer core holder for CT scanning |
| CN202404087U (en) * | 2011-12-05 | 2012-08-29 | 中国石油大学(华东) | Core clamping mechanism |
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2011
- 2011-12-05 CN CN201110396446.7A patent/CN102419363B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542655A (en) * | 1984-05-09 | 1985-09-24 | University Of Alabama | Borehole stress-meter and method and apparatus for the installation thereof |
| US4710948A (en) * | 1985-12-13 | 1987-12-01 | Atlantic Richfield Company | Geologic core holder with composite barrel |
| CN101446542A (en) * | 2008-12-15 | 2009-06-03 | 南通市飞宇石油科技开发有限公司 | Triaxial core holder |
| CN101576471A (en) * | 2009-04-27 | 2009-11-11 | 中国石油大学(北京) | Test device for realizing multiphase pipe flow and washing erosion in high-temperature high-pressure reaction kettle |
| CN102162784A (en) * | 2010-12-17 | 2011-08-24 | 中国石油天然气股份有限公司 | Heterogeneous multi-layer core holder for CT scanning |
| CN202404087U (en) * | 2011-12-05 | 2012-08-29 | 中国石油大学(华东) | Core clamping mechanism |
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| Publication number | Publication date |
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| CN102419363A (en) | 2012-04-18 |
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Granted publication date: 20141217 Termination date: 20171205 |