CN107014980B - A kind of semi-open type core holding unit - Google Patents
A kind of semi-open type core holding unit Download PDFInfo
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- CN107014980B CN107014980B CN201710241103.0A CN201710241103A CN107014980B CN 107014980 B CN107014980 B CN 107014980B CN 201710241103 A CN201710241103 A CN 201710241103A CN 107014980 B CN107014980 B CN 107014980B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The present invention relates to a kind of semi-open type core holding units, including left plug, cylinder, profiled seal, lid, right plug, it is characterized by: lid is bolted with cylinder, profiled seal is placed in cylinder top seal slot, left plug matches to merge with inner circle on the left of cylinder to be connected through a screw thread, it is equipped with sealing ring between the two, inner circle cooperates on the right side of right plug and cylinder, it is equipped between the two and adjusts ring and sealing ring, gland matches to merge with baffle ring to be connected through a screw thread with cylinder, packing element both ends cooperate with left plug and right plugged end respectively, right end is placed between circular arc support and lower circular arc support, it is rock core chamber inside packing element, left plug and right plug and rock core cooperative end part offer air slot, inside offers medium holes.The present invention, which is able to achieve, completes the work for quickly taking, filling, easy to use, efficient work to the rock core within the scope of certain length in rock core test.
Description
Technical field
The present invention relates to a kind of rock core reservoir physical simulation experimental rigs, and in particular to a kind of semi-open type core holding unit.
Background technique
Core holding unit is with wide infrastructure component in development experiments, primarily directed in oil and natural gas
In geological prospecting and related development research, by being completed in core holding unit related to rock core to formation at target locations coring
The correlation tests such as permeability, porosity and other formation damages further reflect to obtain rock core items physical parameter
The correlation properties on stratum.The purpose of core holding unit is more single, mainly clamps, stablizes rock core, controls every simulation ground
Layer parameter simultaneously forms confined space, completes the test of various simulated environments and obtains test parameters.
Currently, common core holding unit generallys use middle cylinder, the mode of both ends plug is empty to form sealing control
Between, inner barrel is placed with the packing element of clamping rock core, and packing element is positioned by both ends plug.At work, by cylinder and packing element
Confined space in injection hydraulic oil form rock core and control confining pressure, inject displacing medium simulated formation water, oil etc. at plug both ends.
The case where this mode can be effectively ensured the airtightness of inner space and bear larger internal pressure, but in rock core correlation test, it needs
Test core is continually removed, and inspects periodically, replace packing element, it is very complicated that conventional design makes rock core remove work, needs
It takes out both ends plug and enters the internal rock core of release from one end with push rod.For this reason, it is necessary to design a kind of more efficient, quick
Core holding unit complete the work of rock core dependence test so that the taking of rock core, fill and clamper inside detection work it is more square
Just.
Summary of the invention
The purpose of the invention is to solve the above-mentioned problems, to propose a kind of easy to use, the rock core folder of efficient work
Holder completes the work for quickly taking, filling to the rock core within the scope of certain length in rock core test to realize.
The purpose of the present invention is achieved through the following technical solutions: a kind of semi-open type core holding unit, including left plug, cylinder
Body, profiled seal, lid, right plug, lid are bolted with cylinder, and profiled seal is placed in cylinder top seal slot,
Left plug matches to merge with inner circle on the left of cylinder to be connected through a screw thread, and is equipped with sealing ring, inner circle on the right side of right plug and cylinder between the two
Cooperation is equipped with adjusts ring and sealing ring between the two, and gland matches to merge with baffle ring to be connected through a screw thread with cylinder, packing element both ends difference
Cooperating with left plug and right plugged end, it is rock core chamber inside packing element that right end, which is placed between circular arc support and lower circular arc support,
Left plug and right plug and rock core cooperative end part offer air slot, and inside offers medium holes.
Cylinder both ends and top offer seal groove, and cylinder left end is provided with boss, are used for stabilized seal circle, cylinder
Middle part is symmetrically arranged with cylinder table, and cylinder table arc surface and lid both ends Inner arc cooperate, and cylinder front is provided with convex block, rear portion
It is provided with female hinge, is equipped with tapped through hole in convex block；Lid end face offers seal groove, and lid front is provided with convex block, rear portion
It is provided with sub- hinge, is equipped with through-hole in convex block；Seal groove is offered at left plug and the cooperation of lid left side, outside left plug prism
Side offers via hole；Baffle ring and adjusting ring counterface offer seal groove；Via hole is offered on the outside of gland prism；Baffle ring
Both ends offer seal groove, and there are many width according to testing rock core length different designs for baffle ring；Profiled seal can be adopted according to operating condition
Meet sealing demand with rubber or metal material.
Beneficial effects of the present invention:
1. cylinder and lid are bolted, lid front can be opened, and make internal packing element side by semi-open type structure
Just it takes out, be packed into, clamper left end does not need to dismantle in whole process, and right end only needs suitably to adjust, to realize rock core
Quickly take, fill work；Meanwhile semi-open type structure is easy to check internal condition, can carry out in time more to deformation or failure packing element
It changes, is conducive to going on smoothly for test.
2. according to testing rock core length different designs there are many baffle ring of width, different rule within the scope of achievable certain length
The experiment work of lattice rock core.
Detailed description of the invention
Fig. 1 is the assembly stereoscopic schematic diagram of semi-open type core holding unit；
Fig. 2 is the half sectional view of semi-open type core holding unit；
Fig. 3 is the stereoscopic schematic diagram of cylinder；
Fig. 4 is the stereoscopic schematic diagram of lid；
Fig. 5 is the stereoscopic schematic diagram of left plug；
Fig. 6 is the stereoscopic schematic diagram of right plug；
Fig. 7 is the stereoscopic schematic diagram of gland；
Fig. 8 is the stereoscopic schematic diagram for adjusting ring；
In figure: the left plug of 1-；2- cylinder；3- profiled seal；4- lid；5- packing element；6- gland；The right plug of 7-；8- medium
Hole；9- rock core chamber；10- adjusts ring；11- inlet opening；12- drainage hole；Mother's 13- hinge；Circular arc support under 14-；15- cylinder table；
16- boss；17- convex block；The upper circular arc support of 18-；19- hinge；20- via hole；21- air slot；22- baffle ring.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
As shown in Figure 1, 2, a kind of semi-open type core holding unit, including left plug 1, cylinder 2, profiled seal 3, lid 4, the right side
Plug 7, lid 4 are bolted with cylinder 2, and profiled seal 3 is placed in 2 top seal slot of cylinder, left plug 1 and cylinder 2
Left side inner circle is connected through a screw thread with merging, is equipped with sealing ring between the two, and right plug 7 cooperates with 2 right side inner circle of cylinder, between the two
Equipped with ring 10 and sealing ring is adjusted, gland 6 matches to merge with baffle ring 22 to be connected through a screw thread with cylinder 2,5 both ends of packing element respectively with a left side
Plug 1 and the cooperation of 7 end of right plug, right end are placed between circular arc support 18 and lower circular arc support 14, are rock core inside packing element 5
Chamber 9, left plug 1 and right plug 7 and rock core cooperative end part offer air slot 21, and inside offers medium holes 8, and abnormity is close
Rubber or metal material can be used according to operating condition to meet sealing demand in envelope 3；
As shown in figure 3,2 both ends of cylinder and top offer seal groove, 2 left end of cylinder is provided with boss 16,
For stabilized seal circle, cylinder table 15 is symmetrically arranged in the middle part of cylinder 2,15 arc surface of cylinder table is matched with 4 both ends Inner arc of lid
It closes, 2 front of cylinder is provided with convex block 17, and rear portion is provided with female hinge 13, is equipped with tapped through hole in convex block 17；
As shown in figure 4,4 end face of lid offers seal groove, 4 front of lid is provided with convex block 17, and rear portion is provided with
Sub- hinge 19, convex block 17 is interior to be equipped with through-hole；
As shown in figure 5, seal groove is offered at the left plug 1 and 4 left side cooperation of lid, on the outside of left 1 prism of plug
Offer via hole 20；
As shown in fig. 6, the baffle ring 22 offers seal groove with 10 counterface of ring is adjusted；
As shown in fig. 7, offering via hole 20 on the outside of 6 prism of gland；
As shown in figure 8,22 both ends of baffle ring offer seal groove, baffle ring 22 has according to testing rock core length different designs
A variety of width.
Specific embodiment:
The clamping work for carrying out rock core first, assembles core holding unit and connects exterior tubing, opens lid 4, rotation
Right plug 7 is pulled out to the right one end distance by loosening pressure lid 6, and the packing element 5 for being mounted with rock core is put into the middle part of clamper on the right side, is set
On 14 on lower circular arc support, then it is inserted in left plug 1 to the left, is inserted into the via hole 20 on the outside of 6 prism of gland using assister bar,
Gland 6 is screwed, right plug 7 is made to compress rock core, closing lid 4 makes circular arc support 18 and lower circular arc support 14 clamp 5 right side of packing element
End, at the convex block 17 on enter screw lid 4 made to compress profiled seal 3；After completing rock core clamping and device seal operation, the row of closing
Fluid apertures 12 injects hydraulic oil by inlet opening 11 and carries out the regulation of rock core confining pressure, and displacing medium is injected by left 1 middle part medium holes 8 of plug,
By internal rock core, finally it is discharged by right 7 middle part medium holes 8 of plug；After the completion of test, inlet opening 11 is closed, opens drainage hole
12 carry out confining pressure unloading, are then turned on lid 4, unscrew gland 6, right plug 7 are pulled out a distance to the right, then packing element 5
Left plug 1 is pulled away to the right, finally takes out packing element 5, with changing a packaged packing element 5 for carrying rock core to be measured, completes rock repeatedly
Heart test.
Claims (1)
1. a kind of semi-open type core holding unit, including left plug (1), cylinder (2), profiled seal (3), lid (4), right plug
(7), it is characterised in that: lid (4) is bolted with cylinder (2), and profiled seal (3) is placed in cylinder (2) top seal slot
Interior, inner circle is connected through a screw thread with merging on the left of left plug (1) and cylinder (2), is equipped with sealing ring between the two, right plug (7) and
Inner circle cooperation on the right side of cylinder (2) is equipped with adjusts ring (10) and sealing ring between the two, and gland (6) is matched with baffle ring (22) to be merged and cylinder
Body (2) is connected through a screw thread, and packing element (5) both ends cooperate with left plug (1) and right plug (7) end respectively, and right end is placed in circle
Be between arc support (18) and lower circular arc support (14), inside packing element (5) rock core chamber (9), left plug (1) and right plug (7) and
Rock core cooperative end part offers air slot (21), and inside offers medium holes (8)；
Cylinder (2) both ends and top offer seal groove, and cylinder (2) left end is provided with boss (16), are used for stabilized seal
Circle, cylinder (2) middle part are symmetrically arranged with cylinder table (15), and cylinder table (15) arc surface and lid (4) both ends Inner arc cooperate, cylinder
Body (2) front is provided with convex block (17), and rear portion is provided with female hinge (13), and tapped through hole, cylinder (2) bottom are equipped in convex block (17)
Portion offers the inlet opening (11) and drainage hole (12) for adjusting confining pressure；
Lid (4) end face offers seal groove, and lid (4) front is provided with convex block (17), and rear portion is provided with sub- hinge (19), convex
Through-hole is equipped in block (17)；
Seal groove is offered at left plug (1) and lid (4) left side cooperation, offers via hole on the outside of left plug (1) prism
(20)；
Baffle ring (22) and adjusting ring (10) counterface offer seal groove；
Via hole (20) are offered on the outside of gland (6) prism；
Baffle ring (22) both ends offer seal groove, and there are many width according to testing rock core length different designs for baffle ring (22)；
Rubber or metal material can be used according to operating condition to meet sealing demand in profiled seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241103.0A CN107014980B (en) | 2017-04-13 | 2017-04-13 | A kind of semi-open type core holding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241103.0A CN107014980B (en) | 2017-04-13 | 2017-04-13 | A kind of semi-open type core holding unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107014980A CN107014980A (en) | 2017-08-04 |
| CN107014980B true CN107014980B (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710241103.0A Expired - Fee Related CN107014980B (en) | 2017-04-13 | 2017-04-13 | A kind of semi-open type core holding unit |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108037006A (en) * | 2017-11-30 | 2018-05-15 | 成都岩心科技有限公司 | A kind of axial space adjusts core holding unit and application method |
| CN108381426A (en) * | 2018-04-29 | 2018-08-10 | 江苏拓创科研仪器有限公司 | A kind of three axle clamp holders being conveniently replaceable gum cover |
| CN110208104B (en) * | 2019-06-24 | 2021-06-08 | 东北大学 | Quick-rotation opening type high-pressure rock triaxial pressure chamber with loading structure |
| CN114544457A (en) * | 2022-01-15 | 2022-05-27 | 江苏华安科研仪器有限公司 | Microwave heating nonmetal rock core holder |
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| CN1595098A (en) * | 2004-06-24 | 2005-03-16 | 石油大学(北京) | Rock core gripper for simulating formation multiple stress field coupling action |
| 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 |
| 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 |
| CN102288629A (en) * | 2011-07-01 | 2011-12-21 | 中联煤层气国家工程研究中心有限责任公司 | Core holder |
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| CN104267174A (en) * | 2014-10-25 | 2015-01-07 | 吴建平 | Rock core holder |
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| CN205719757U (en) * | 2016-03-09 | 2016-11-23 | 长江大学 | A kind of square core holding unit |
| CN106525889A (en) * | 2016-11-03 | 2017-03-22 | 中国科学院力学研究所 | Experiment device and method for simulating hole diameter variations in tight oil depletion development process |
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2017
- 2017-04-13 CN CN201710241103.0A patent/CN107014980B/en not_active Expired - Fee Related
Patent Citations (9)
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|---|---|---|---|---|
| CN1595098A (en) * | 2004-06-24 | 2005-03-16 | 石油大学(北京) | Rock core gripper for simulating formation multiple stress field coupling action |
| 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 |
| 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 |
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| CN202903644U (en) * | 2012-09-18 | 2013-04-24 | 中国石油化工股份有限公司 | Core enchanting and dismounting device |
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| CN205210082U (en) * | 2015-12-11 | 2016-05-04 | 西南石油大学 | High pressure rock core holder |
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| CN107014980A (en) | 2017-08-04 |
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