CN116223331A - Core holder for testing shale oil - Google Patents
Core holder for testing shale oil Download PDFInfo
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- CN116223331A CN116223331A CN202211595890.6A CN202211595890A CN116223331A CN 116223331 A CN116223331 A CN 116223331A CN 202211595890 A CN202211595890 A CN 202211595890A CN 116223331 A CN116223331 A CN 116223331A
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 239000003079 shale oil Substances 0.000 title claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 57
- 239000004576 sand Substances 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 43
- 239000000049 pigment Substances 0.000 claims description 37
- 239000008187 granular material Substances 0.000 claims description 23
- 239000011435 rock Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 230000001680 brushing effect Effects 0.000 claims description 12
- 239000008188 pellet Substances 0.000 claims description 12
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000002657 fibrous material Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 18
- 238000002474 experimental method Methods 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 abstract description 4
- 238000005429 filling process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 12
- 230000003204 osmotic effect Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a core holder for testing shale oil, which is applied to the technical field of petrochemical core experiment tools, and is characterized in that a movable plug is operated to press into a clamping plug, so that a sand filling bag is contacted with the section of a core sample, a particle ball in the sand filling bag is filled according to the section structure, the effect of butt joint of the clamping plug and the section of the core sample is achieved, the clamping plug is convenient for applying pressure required by testing the core sample, meanwhile, too much manual intervention is not performed on the section, the real effect of a test is improved, a swinging gathering piece is pressed to expand outwards in the filling process of the particle ball, a connecting gear drives a sealing rod to pull out outwards, a fluid outlet at the inner end of a seepage fluid channel is synchronously opened, test fluid is firstly dispersed through the particle ball and then contacts with the section of the sample, the contact area of the test fluid and the section of the sample is effectively improved, and the seepage efficiency of the test is improved, and the test time is reduced.
Description
Technical Field
The application relates to the technical field of petrochemical core experiment tools, in particular to a core holder for testing shale oil.
Background
Shale oil refers to petroleum resources contained in shale layers mainly comprising shale, wherein the shale oil comprises petroleum in shale pores and cracks, and also comprises petroleum resources in adjacent layers and interlayers of tight carbonate or clastic rock in the shale layers, and a core holder is used for holding a core sample by plugs at two ends and testing the gas or liquid permeability of the core.
The rock core is the cylinder of garrulous segmentation when the sample exploitation comes out, the terminal surface of rock core is the rugged section, consequently need cut these sections when carrying out the centre gripping test and polish, the cutting operation of rock core terminal surface occupies a large amount of test experiment time, simultaneously caused artificial intervention to the rock core sample at the cutting in-process of polishing, the seepage space of easily destroying the rock core tip influences the result of rock core test experiment, but if not cut the section of rock core sample and polish, the section of rock core sample is not level and smooth enough, the plug of rock core holder just can't exert the pressure of centre gripping to the rock core sample, can't carry out the operation of experiment.
To above-mentioned problem, this technical scheme carries out corresponding technical hypothesis, does not cut the polishing to the rock core sample, but carries out simple beating to the rock core section, makes the section level relatively, lays a sand bag between the end cap of rock core holder and the section of rock core sample, is equipped with the ball of packing in the sand bag, fills the uneven section through the ball for the end cap of rock core holder can apply clamping pressure to the section of rock core sample, and the fluid of test can also simulate the seepage flow mode in stratum through the sand bag simultaneously, in order to improve experimental test's authenticity.
Disclosure of Invention
This application aim at realizes directly carrying out the centre gripping test to irregular section's rock core sample, compare prior art and provide a rock core holder for testing shale oil, the inside cover through the centre gripping end cap is equipped with movable plug, and the inner fixedly connected with of movable plug fills the sand bag, the inside cladding of sand bag has the granule ball, swing joint has the swing piece of drawing in between the inside both sides of sand bag and the movable plug of filling, and swing the inner fixedly connected with connecting gear of drawing in the piece, the seepage fluid passageway has been seted up to the inside of movable plug, the fluid outlet has been seted up to seepage fluid passageway's inner, and the outside activity grafting of fluid outlet has the seal bar, seal bar and connecting gear meshing.
The core sample after simple treatment is placed into the annular sleeve, the movable plug in the clamping plug is firstly pressed inwards, so that the filling sand bag in the clamping plug is contacted with the section of the core sample, the particle balls in the filling sand bag are filled according to the section structure, the effect of butt joint of the clamping plug and the section of the core sample is achieved, the clamping plug is convenient for applying the pressure required by the test to the core sample, meanwhile, the manual intervention on the section is avoided, the real effect of the test is improved, the swinging gathering piece is pressed to expand outwards in the particle ball filling process, the connecting gear drives the sealing rod to pull out outwards, the fluid outlet at the inner end of the seepage fluid channel is opened, the osmotic pressure test operation of the inner core is carried out, the test fluid is firstly dispersed through the particle balls and then contacted with the section of the sample, the contact area of the test fluid and the section of the sample is effectively improved, the osmotic efficiency of the test is improved, and the test time is reduced.
Further, the pellet ball is made by stainless steel material, and the inside of pellet ball is inlayed and is had magnet ball, and the sand bag of filling up is made by wear-resisting tensile fiber material, and the pellet ball compressive strength that stainless steel material made is effectual, and inside inlayed magnet ball is convenient for pellet ball agglomeration, effectively avoids single pellet ball to miss, and the sand bag of filling up that wear-resisting tensile fiber material made life is high.
Further, the inner wall fixedly connected with extrusion spheroid of sand bag is filled up, and extrusion spheroid is contradicted with the granule ball and is connected, and extrusion spheroid is connected with swing and is drawn in the piece and can dismantle, through extrusion spheroid and granule ball's conflict extrusion, realizes oppression swing and is drawn in the piece and outwards expands, and follow-up in the swing draw in the piece and restore the in-process to sand bag of filling up is drawn in, is convenient for fill up the sand bag and get back to in the centre gripping end cap.
Further, the back of the swing gathering piece and the inner end of the movable plug are fixedly connected with a push piece which is in V-shaped arrangement, the push piece is made of elastic metal materials, the push piece applies resetting power to the swing gathering piece through self elasticity, and the swing gathering piece is convenient to guide to gather and reset.
Further, the inner wall swing joint of centre gripping end cap has the slip pivot, and the inner fixedly connected with of slip pivot snatchs the piece, and snatchs the piece and fill up the sand bag and correspond, through slip pivot rotation drive snatch the piece, utilize snatch the piece to block back to the sand bag that fills up in the centre gripping end cap, effectively improve the stability effect of depositing of filling up the sand bag.
Further, the surface of the sliding rotating shaft is provided with a guide chute, the outer end of the guide chute is spirally arranged, the inner end surface of the movable plug is fixedly connected with a sliding gasket which is in sliding connection with the guide chute, the movable plug slides in the guide chute through the sliding gasket in the process of telescopic movement, and the rotating movement of the sliding rotating shaft is realized when the movable plug slides to the spiral position of the guide chute.
Optionally, the inside cover of oozing fluid channel is equipped with the connecting rib, and the one end and the sealed stick fixed connection of connecting rib, connecting rib surface fixedly connected with support scrub the hair, and support scrub hair and ooze fluid channel inner wall swing joint, the sealed stick plug in-process drives the connecting rib and moves in ooze fluid channel, utilizes the support scrub hair to brush ooze fluid channel's inner wall simultaneously, effectively avoids the piece adhesion of sample to detain.
Further, the connecting rib is collinear with the axis of the seepage fluid channel, the connecting rib is made of carbon fiber materials, the supporting brushing hair is made of wear-resistant plastics, the connecting rib made of the carbon fiber materials has good tensile effect and certain toughness, the disassembly operation of the connecting rib is convenient, the supporting brushing Mao Naimo made of the wear-resistant plastics is good, and therefore the service life of the connecting rib is prolonged.
Further, the outer end flange joint of movable cock stem has the installation back lid, and the inside fixedly connected with deformation stick of installation back lid, the other end and the middle part fixed connection of deformation stick of connecting rod, and deformation stick is made by elastic rubber material, and the closed stick plug in-process drives the connecting rod motion, and the bending deformation of connecting rod pulling deformation stick, the deformation stick pulling connecting rod that follow-up elastic rubber material was made is recovered, realizes the repetitive motion of connecting rod.
Further, both ends of deformation stick all fixedly connected with instruct liquid cover, and the inside fixedly connected with extrusion string bag of instructing liquid cover, the inside cladding of extrusion string bag has pigment honeycomb piece, the inside cover of deformation stick is equipped with tensile silk, and the both ends of tensile silk run through pigment honeycomb piece respectively and with the top fixed connection of extrusion string bag, pigment honeycomb piece is made by the sponge, the process of deformation stick bending deformation drives tensile silk and pulls extrusion string bag, extrusion string bag draws in extrusion pigment honeycomb piece, thereby extrude the interior absorptive pigment of pigment honeycomb piece, the pigment of extrusion and pigment honeycomb piece own colour appearance contrast, realize instruct the colour change suggestion of liquid cover, judge the bending condition of deformation stick through pigment extrusion's rarefaction degree, indirect judgement fills the filling condition of sand bag.
Compared with the prior art, the advantage of this application lies in:
(1) According to the scheme, a core sample is placed into the annular pressing sleeve, the movable plug in the clamping plug is firstly pressed inwards, so that a filling sand bag in the clamping plug is contacted with the section of the core sample, a particle ball in the filling sand bag is filled according to the section structure, the effect of butt joint of the clamping plug and the section of the core sample is achieved, the clamping plug is convenient to apply pressure required by test to the core sample, meanwhile, too much manual intervention is not carried out on the section, the real effect of a test is improved, the swinging gathering piece is pressed to expand outwards in the particle ball filling process, the connecting gear is used for driving the sealing rod to pull outwards, the fluid outlet at the inner end of a seepage fluid channel is opened, the osmotic pressure test operation of the core is realized, the test fluid is firstly dispersed through the particle ball and then contacted with the section of the sample, the contact area of the test fluid and the section of the sample is effectively improved, the osmotic efficiency of the test is improved, and the test time is reduced.
(2) The pellet ball is made by stainless steel material, and the inside of pellet ball is inlayed and is had the magnet ball, and the sand bag of filling up is made by wear-resisting tensile fiber material, and the pellet ball compressive strength that stainless steel material made is effectual, and inside inlayed magnet ball is convenient for pellet ball agglomeration, effectively avoids single pellet ball to miss, and the sand bag of filling up that wear-resisting tensile fiber material made life is high.
(3) The inner wall fixedly connected with extrusion spheroid of sand bag is filled up, and extrusion spheroid is contradicted with the granule ball and is connected, and extrusion spheroid is drawn in the piece and can be dismantled with the swing and be connected, through extrusion spheroid and granule ball's conflict extrusion, realizes oppression swing and draws in the piece outwards to expand, and follow-up is drawn in the piece in the swing and is drawn in the in-process that restores to the sand bag of filling up, is convenient for fill up the sand bag and get back to in the centre gripping end cap.
(4) The back of the swing gathering piece and the inner end of the movable plug are fixedly connected with a push piece which is arranged in a V shape, the push piece is made of elastic metal materials, the push piece applies resetting power to the swing gathering piece through self elasticity, and the swing gathering piece is conveniently guided to gather and reset.
(5) The inner wall swing joint of centre gripping end cap has the slip pivot, and the inner fixedly connected with of slip pivot snatchs the piece, and snatchs the piece and corresponds with the sand bag that fills up, and rotatory drive the piece of snatching through the slip pivot, utilize to snatch the piece and block the sand bag that fills up that returns to in the centre gripping end cap, effectively improve the stability effect of depositing of sand bag that fills up.
(6) The surface of the sliding rotating shaft is provided with a guide chute, the outer end of the guide chute is spirally arranged, the inner end surface of the movable plug is fixedly connected with a sliding gasket which is in sliding connection with the guide chute, the movable plug slides in the guide chute through the sliding gasket in the process of telescopic movement, and the rotating movement of the sliding rotating shaft is realized when the movable plug slides to the spiral position of the guide chute.
(7) The inside cover of oozing the fluid passageway is equipped with the connecting rib, and the one end and the sealed stick fixed connection of connecting rib, connecting rib surface fixedly connected with support scrub the hair, and support scrub hair and ooze fluid passageway inner wall swing joint, and the sealed stick plug in-process drives the connecting rib and ooze fluid passageway internal motion, utilizes the support scrub hair to brush the inner wall of ooze fluid passageway simultaneously, effectively avoids the piece adhesion of sample to stay.
(8) The connecting ribs are collinear with the axis of the seepage fluid channel, the connecting ribs are made of carbon fiber materials, the supporting brushing hair is made of wear-resistant plastics, the connecting ribs made of the carbon fiber materials have good tensile effect and certain toughness, the disassembly operation of the connecting ribs is convenient, the supporting brushing Mao Naimo made of the wear-resistant plastics is good, and therefore the service life of the connecting ribs is prolonged.
(9) The outer end flange joint of activity cock stem has the installation back lid, and the inside fixedly connected with deformation stick of installation back lid, the other end and the middle part fixed connection of deformation stick of connecting rib, deformation stick are made by elastic rubber material, and the closed stick plug in-process drives the connecting rib motion, and the bending deformation of connecting rib pulling deformation stick, the deformation stick pulling connecting rib that follow-up elastic rubber material was made is recovered, realizes the repetitive motion of connecting rib.
(10) Both ends of deformation stick all fixedly connected with instruct liquid cover, and the inside fixedly connected with extrusion string bag of instruct liquid cover, the inside cladding of extrusion string bag has pigment honeycomb piece, the inside cover of deformation stick is equipped with tensile silk, and the both ends of tensile silk run through pigment honeycomb piece respectively and with the top fixed connection of extrusion string bag, pigment honeycomb piece is made by the sponge, the process of deformation stick bending deformation drives tensile silk and pulls extrusion string bag, extrusion string bag draws in extrusion pigment honeycomb piece, thereby extrude the interior absorptive pigment of pigment honeycomb piece, the pigment of extrusion and pigment honeycomb piece itself colour appearance contrast, realize instruct the color variation suggestion of liquid cover, judge the bending condition of deformation stick through pigment extruded rarefaction degree, indirect judgement fills the filling condition of sand bag.
Drawings
FIG. 1 is a pictogram of the variation of the movement of the filling sandbag of the present application;
FIG. 2 is a perspective view of the structure of the present application;
FIG. 3 is a side cross-sectional view of the present application;
FIG. 4 is a pictogram of the variation of the gripping block rotary gripping filled sandbag of the present application;
FIG. 5 is an enlarged view of a portion of the inner end of the movable plug of the present application;
FIG. 6 is an enlarged view of a partial structure of the drawings of the present application;
FIG. 7 is a perspective view of a sliding shaft according to the present application;
FIG. 8 is a perspective view of the rear cover of the present application;
FIG. 9 is a side cross-sectional view of the lid of the present application after installation;
fig. 10 is a pictogram of the pigment extrusion variation of the pigment honeycomb block of the present application.
The reference numerals in the figures illustrate:
the device comprises a cylinder body with a holder, a clamping plug with a holder, a sleeve with a ring pressing 3, a core with a test 4, a movable plug with a movable plug 5, a sand filling bag with a flat 6, a granule ball with a granule ball 601, a swinging gathering piece with a granule ball 602, a connecting gear with a granule ball 603, a sealing rod with a granule ball 605, a pushing piece with a granule ball 606, a seepage flow channel with a granule ball 606, a fluid outlet with a granule ball 701, a sliding rotating shaft with a granule ball 8, a grabbing block with a granule ball 801, a guiding chute with a granule ball 803, a connecting rib with a granule ball 9, a hair brushing with a granule ball 901, a rear cover with a granule ball 10, a deformation rod with a granule ball 1001, a liquid cover with a granule ball 1002, a pigment honeycomb block with a granule ball 1004, and a stretching wire 1005.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments in the present application are all within the scope of protection of the present application.
Examples:
the invention provides a core holder for testing shale oil, please refer to fig. 1-3, including holder barrel 1, and both ends of holder barrel 1 are all movably connected with clamping plugs 2, clamping plug 2 applies clamping pressure to both ends of core sample, the middle part of holder barrel 1 is fixedly connected with ring pressing sleeve 3, ring pressing sleeve 3 implements outside test ring pressing to core sample, while fixing core sample, the inside of ring pressing sleeve 3 is sleeved with test core 4, shale oil core for testing will simply process the section before testing, make the section not too uneven, both ends of test core 4 are in abutting connection with two clamping plugs 2 respectively, the inside sleeve of clamping plug 2 is equipped with movable plug 5, and the inner end of movable plug 5 is fixedly connected with filling sand bag 6, the particle ball 601 made of wear-resistant tensile fiber material has good effect, the inside sleeve 6 is covered with particle ball 601, the particle ball 601 of the inside is convenient for forming clusters, the single ball 601 will simply process the section before testing, the two ends of test core 4 are in abutting connection with two clamping plugs 2 respectively, the inside sleeve of clamping plug 2 is equipped with movable plug 5, and the inner end 6 is fixedly connected with filling sand bag 6, the inner end of sand bag 6 has high service life, particle ball 601 is easy to fill up the core 2, the effect of the core is easy to be filled with the core 2, the core is filled with the sand bag 2, the test is in the core 2, and the core is filled with the core 2 and is in the core 2;
referring to fig. 4-6, swing gathering pieces 602 are movably connected between two sides of the interior of the sand filling bag 6 and the movable plug 5, abutting pushing pieces 606 are fixedly connected to the back of the swing gathering pieces 602 and the inner end of the movable plug 5, the abutting pushing pieces 606 are made of elastic metal materials, the abutting pushing pieces 606 apply resetting power to the swing gathering pieces 602 through self elasticity, so as to guide the swing gathering pieces 602 to gather and reset, the inner wall of the sand filling bag 6 is fixedly connected with extrusion balls 605, the extrusion balls 605 are in abutting connection with the particle balls 601, the extrusion balls 605 are in abutting extrusion with the particle balls 601 to realize pressing and outward expanding of the swing gathering pieces 602, the sand filling bag 6 is subsequently gathered in the restoration process of the swing gathering pieces 602, the sand filling bag 6 is conveniently returned to the clamping plug 2, the extrusion balls 605 are detachably connected with the swing gathering pieces 602, the sand filling bag 6 is conveniently detached and replaced, the inner end of the swinging gathering piece 602 is fixedly connected with a connecting gear 603, a seepage fluid channel 7 is arranged in the movable plug 5, a fluid outlet 701 is arranged in the seepage fluid channel 7, a sealing rod 604 is movably inserted outside the fluid outlet 701, the sealing rod 604 is meshed with the connecting gear 603, when the swinging gathering piece 602 expands outwards, the sealing rod 604 is driven to be pulled outwards through the connecting gear 603 to realize the opening of the fluid outlet 701 in the inner end of the seepage fluid channel 7, so as to perform the osmotic pressure test operation of an inner core, when the core sample is subjected to osmotic pressure test by test fluid, the test fluid passing through the filled particle 601 is effectively dispersed, the osmotic efficiency of the test fluid is effectively improved, the test time is reduced, the subsequent sealing rod 604 resets to block the fluid outlet 701, the chip is prevented from being brought into the seepage fluid channel 7 by the test fluid reflux, the blockage of the seepage fluid channel 7 is effectively avoided;
referring to fig. 5 and 7, the inner wall of the clamping plug 2 is movably connected with a sliding rotating shaft 8, the sliding rotating shaft 8 guides the movement direction of the movable plug 5 to prevent the movable plug 5 from rotating, a guide chute 802 is formed on the surface of the sliding rotating shaft 8, the outer end of the guide chute 802 is spirally arranged, the inner end surface of the movable plug 5 is fixedly connected with a sliding gasket 803 which is slidably connected with the guide chute 14, the movable plug 5 slides in the guide chute 802 through the sliding gasket 803 in the process of telescopic movement, the sliding rotating shaft 8 is rotated when sliding to the spiral position of the guide chute 802, the sliding rotating shaft 8 drives a grabbing block 801, the grabbing block 801 is utilized to clamp a filling sand bag 6 back into the clamping plug 2, the filling sand bag 6 is stably clamped and fixed, and the storage stability of the filling sand bag 6 is effectively improved;
referring to fig. 5 and 8, a connecting rib 9 is sleeved in the seepage flow channel 7, one end of the connecting rib 9 is fixedly connected with a sealing rod 604, the connecting rib 9 is collinear with the axis of the seepage flow channel 7, the connecting rib 9 is positioned on the axis of the seepage flow channel 7, the influence on the circulation of test fluid is reduced, the connecting rib 9 made of carbon fiber materials has good tensile effect and has certain toughness, the disassembly operation of the connecting rib 9 is convenient, the supporting brushing hair 901 is fixedly connected to the surface of the connecting rib 9, the supporting brushing hair 901 provides support for the connecting rib 9, the supporting brushing hair 901 made of wear-resistant plastics has good wear-resistant effect, the connecting rib 9 is prevented from rubbing the inner wall of the seepage flow channel 7, the service life of the connecting rib 9 is prolonged, the supporting hair 901 is movably connected with the inner wall of the seepage flow channel 7, the connecting rib 9 is driven to move in the seepage flow channel 7 in the inserting and pulling process of the sealing rod 604, meanwhile, the inner wall of the seepage flow channel 7 is cleaned by the supporting brushing hair 901, and the chip adhesion retention of a sample is effectively avoided;
referring to fig. 8-10, the outer end flange of the movable plug 5 is connected with a rear mounting cover 10, the inner part of the rear mounting cover 10 is fixedly connected with a deformation rod 1001, the other end of the connecting rib 9 is fixedly connected with the middle part of the deformation rod 1001, the deformation rod 1001 is made of elastic rubber material, the connecting rib 9 is driven to move in the plugging process of the sealing rod 604, the connecting rib 9 pulls the deformation rod 1001 to bend and deform, the deformation rod 1001 made of subsequent elastic rubber material pulls the connecting rib 9 to recover, the repeated movement of the connecting rib 9 is realized, both ends of the deformation rod 1001 are fixedly connected with an indication liquid cover 1002, the inner part of the indication liquid cover 1002 is fixedly connected with an extrusion net 1003, the inner part of the extrusion net 1003 is coated with a pigment honeycomb block 1004, the pigment honeycomb block 1004 is made of sponge, pigment used for indication is adsorbed in the pigment honeycomb block 1004, the color of pigment is different with the color of pigment honeycomb block 1004 itself to realize the contrast of color, the inside cover of deformation stick 1001 is equipped with tensile silk 1005, and the both ends of tensile silk 1005 run through pigment honeycomb block 1004 respectively and with the top fixed connection of extrusion string bag 1003, the process of deformation stick 1001 crooked deformation drives tensile silk 1005 and pulls extrusion string bag 1003, extrusion string bag 1003 draws in extrusion pigment honeycomb block 1004, thereby extrude the pigment that adsorbs in the pigment honeycomb block 1004, the pigment that extrudes and pigment honeycomb block 1004 itself color appearance contrast, realize the color change suggestion of instruct liquid cover 1002, judge the crooked condition of deformation stick 1001 through the rarefaction degree that pigment extruded, indirect judgement fills the filling condition of sand bag 6.
Working principle:
when the clamp holder is used, a shale oil core sample to be tested is selected, the section of the sample is simply knocked, the end face is relatively smooth, the core sample is placed into the annular sleeve 3, the annular sleeve 3 is pressurized in advance, the annular sleeve 3 is hooped by the core sample, the clamping plug 2 is operated to extend into the annular sleeve 3, the movable plug 5 in the clamping plug 2 is pressed inwards, the sand bag 6 filled in the clamping plug 2 is contacted with the section of the core sample, the sand bag 6 is pressurized, the particle ball 601 in the sand bag 6 is filled in according to the section structure, the effect of butt joint of the clamping plug 2 and the section of the core sample is achieved, the excessive manual intervention is avoided, the real effect of test is improved, in the process, the particle ball 601 is pressed and swings the gathering piece 602 outwards, accordingly, the connecting gear 603 drives the sealing rod 604 to be pulled outwards, the fluid outlet 701 at the inner end of the seepage fluid channel 7 is opened, the test fluid in the fluid channel 7 enters the annular sleeve 2 to contact with the section of the annular sleeve, the sand bag 6 is filled in the sand bag 6, the test fluid is prevented from flowing back into the sealing rod 7, the sealing fluid is effectively, the sealing fluid is prevented from flowing back into the sealing fluid channel 7, and the sealing fluid is prevented from flowing back into the sealing fluid channel, and the sealing fluid is effectively filled in the sealing rod 7, and the sealing fluid is prevented from flowing back to be filled.
The foregoing description is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should apply to the present application, and all changes and modifications as fall within the scope of the present application.
Claims (10)
1. The utility model provides a rock core holder for testing shale oil, includes holder barrel (1), and the equal swing joint in both ends of holder barrel (1) has centre gripping end cap (2), the middle part fixedly connected with ring of holder barrel (1) presses sleeve pipe (3), and the inside cover of pressing sleeve pipe (3) is equipped with test core (4) the both ends of test core (4) contradict with two centre gripping end caps (2) respectively and be connected, a serial communication port, the inside cover of centre gripping end cap (2) is equipped with movable plug (5), and the inner fixedly connected with of movable plug (5) fills up sand bag (6), the inside cladding of filling up sand bag (6) has granule ball (601), the inside both sides of filling up sand bag (6) and movable plug (5) between swing joint have swing to draw in piece (602), and the inner fixedly connected with connecting gear (603) of swing to draw in piece (602), the inside of movable plug (5) has been seted up and has been oozed fluid passageway (7), the inner of fluid passageway (7) has been seted up fluid outlet (604), and has been sealed with outside plug (604) and has been meshed with outside plug (604).
2. Core holder for testing shale oil according to claim 1, characterized in that the pellet balls (601) are made of stainless steel material, and the inside of the pellet balls (601) is embedded with magnet balls, and the filling sand bags (6) are made of wear-resistant tensile fiber material.
3. The core holder for testing shale oil according to claim 1, wherein an extrusion sphere (605) is fixedly connected to the inner wall of the sand pack (6), the extrusion sphere (605) is in abutting connection with the particle sphere (601), and the extrusion sphere (605) is detachably connected with the swinging gathering piece (602).
4. The core holder for testing shale oil according to claim 1, wherein the back surface of the swinging gathering piece (602) and the inner end of the movable plug (5) are fixedly connected with a pushing piece (606), the pushing piece (606) is arranged in a V shape, and the pushing piece (606) is made of an elastic metal material.
5. The core holder for testing shale oil according to claim 1, wherein the inner wall of the clamping plug (2) is movably connected with a sliding rotating shaft (8), the inner end of the sliding rotating shaft (8) is fixedly connected with a grabbing block (801), and the grabbing block (801) corresponds to the sand filling bag (6).
6. The core holder for testing shale oil according to claim 5, wherein a guide chute (802) is formed on the surface of the sliding rotating shaft (8), the outer end of the guide chute (802) is spirally arranged, and a sliding gasket (803) which is in sliding connection with the guide chute (14) is fixedly connected to the inner end surface of the movable plug (5).
7. The core holder for testing shale oil according to claim 1, wherein a connecting rib (9) is sleeved in the seepage flow channel (7), one end of the connecting rib (9) is fixedly connected with the sealing rod (604), supporting brushing hair (901) is fixedly connected to the surface of the connecting rib (9), and the supporting brushing hair (901) is movably connected with the inner wall of the seepage flow channel (7).
8. Core holder for testing shale oil according to claim 7, characterized in that the connecting ribs (9) are co-linear with the axis of the seepage flow channel (7), and the connecting ribs (9) are made of carbon fiber material, and the supporting brushing hair (901) is made of wear-resistant plastic.
9. The core holder for testing shale oil according to claim 7, wherein the outer end flange of the movable plug (5) is connected with a rear mounting cover (10), a deformation rod (1001) is fixedly connected to the inner part of the rear mounting cover (10), the other end of the connecting rib (9) is fixedly connected with the middle part of the deformation rod (1001), and the deformation rod (1001) is made of elastic rubber materials.
10. The core holder for testing shale oil according to claim 9, wherein both ends of the deformation rod (1001) are fixedly connected with an indication liquid cover (1002), an extrusion net bag (1003) is fixedly connected to the inside of the indication liquid cover (1002), pigment honeycomb blocks (1004) are coated on the inside of the extrusion net bag (1003), a stretching wire (1005) is sleeved on the inside of the deformation rod (1001), and both ends of the stretching wire (1005) penetrate through the pigment honeycomb blocks (1004) respectively and are fixedly connected with the top of the extrusion net bag (1003), and the pigment honeycomb blocks (1004) are made of sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211595890.6A CN116223331A (en) | 2022-12-12 | 2022-12-12 | Core holder for testing shale oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211595890.6A CN116223331A (en) | 2022-12-12 | 2022-12-12 | Core holder for testing shale oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116223331A true CN116223331A (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211595890.6A Pending CN116223331A (en) | 2022-12-12 | 2022-12-12 | Core holder for testing shale oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116223331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115877044A (en) * | 2022-11-30 | 2023-03-31 | 南通市飞宇石油科技开发有限公司 | Resistivity rock core holder |
| CN116818632A (en) * | 2023-08-29 | 2023-09-29 | 中国地质调查局油气资源调查中心 | Core permeability testing device |
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