CN105445143A - Device for rapidly measuring capillary pressure of semi-permeable partition rock core - Google Patents
Device for rapidly measuring capillary pressure of semi-permeable partition rock core Download PDFInfo
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- CN105445143A CN105445143A CN201510771223.2A CN201510771223A CN105445143A CN 105445143 A CN105445143 A CN 105445143A CN 201510771223 A CN201510771223 A CN 201510771223A CN 105445143 A CN105445143 A CN 105445143A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
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Abstract
The invention relates to the technical field of measurement of the capillary pressure of rock cores and discloses a device for rapidly measuring the capillary pressure of a semi-permeable partition rock core. The device comprises a rock core displacement device and a weighing metering device, wherein the rock core displacement device comprises a base, a rock core cylinder, an upper sealing cap and a transverse H-shaped pressure shaft; the rock core cylinder is fixedly mounted on the base, the upper sealing cap is fixedly mounted on the top of the rock core cylinder, and a sealing cavity is formed among the base, the rock core cylinder and the upper sealing cap. The device is reasonable and compact in structure and convenient to use; the interior of the sealing cavity is pressurized through a displacement pressure hole to communicate vent holes of a hollow groove and the sealing cavity to simultaneously pressurize the upper end surface and the periphery of the rock core, so that the displacement period is greatly shortened; by virtue of the cooperation of a displacement liquid tube, an upper control valve and a lower control valve, the requirement for filling the path from a liquid filling hole to the replacement liquid tube with replacement liquid is met, and the groundwork is prepared for the accurate weighing metering; by virtue of the cooperation of a closed weighing metering cover, a weighing module, a dropper and a liquid storage tube, an accurate weighing purpose is achieved.
Description
Technical field
the present invention relates to rock core capillary pressure field of measuring technique, is a kind of for semi-permeable plate rock core capillary pressure rapid measurement device.
Background technology
for a long time, semi-permeable plate rock core capillary pressure is measured because measuring period is long, and is not used widely.Comparatively conventional at present: one end of rock core is used for the displacement end of the intrapore liquid of displacement rock core, the other end is used for, with the outlet end of semi-permeable plate end coupling, measuring rock core capillary pressure; Because this measurement mechanism adopts rock core periphery to add confined pressure sealing, rock core end face is coupled with displacement end face, semi-permeable plate, the mode of displacing fluid glass tube metering displacing fluid.Make displacement long for measuring period, the metering of displacing fluid glass tube can because range estimation angle is different and ambient temperature effect causes fluid error in dipping.
Summary of the invention
the invention provides a kind of for semi-permeable plate rock core capillary pressure rapid measurement device, overcome the deficiency of above-mentioned prior art, it effectively can solve rock core periphery pressurization displacement and cause displacement long for measuring period, adopts glass tube metering to cause the problem that fluid error in dipping is large.
the present invention also solves further and influenced by ambient temperaturely causes the problem that fluid error in dipping is large.
technical scheme of the present invention is realized by following measures: a kind of for semi-permeable plate rock core capillary pressure rapid measurement device, comprises rock core displacement device and Weighing device, rock core displacement device comprises base, core container, upper sealing cap and I-shaped pressure axis, core container is fixedly mounted on base, sealing cap is installed with at the top of core container, base, annular seal space is formed between core container and upper sealing cap, base is provided with the topping up hole be connected with annular seal space, the semi-permeable plate blocking topping up hole is installed in annular seal space, upper sealing cap is respectively arranged with the displacement pressure hole and up big and down small shoulder hole that are connected with annular seal space, hydraulic pressure cap is installed with on the top of shoulder hole, collar stop is fixed with in the lower inside of shoulder hole, the top of I-shaped pressure axis be sleeved on the bottom of shoulder hole and seat on collar stop, I-shaped pressure axis, hydraulic cavities is formed between upper sealing cap and hydraulic pressure cap, hydraulic pressure cap is provided with the pressure transmission hole be connected with hydraulic cavities, rock core pressure cap is fixedly installed with in the bottom of I-shaped pressure axis, the lower surface of rock core pressure cap is provided with groove, rock core pressure cap has the air hole be connected with groove, Weighing device comprises displacing fluid pipe, upper operation valve, lower operation valve, dropper, airtight Weighing cover, Weighing module, pallet and liquid storage pipe, displacing fluid pipe is inverted u-shaped, displacing fluid pipe comprises the left pipe be fixedly connected together, transverse tube and right pipe, left pipe is connected by pipe fitting with topping up hole, right pipe top is provided with operation valve, bottom right pipe, lower operation valve is installed, the dropper through airtight Weighing cover top is communicated with bottom lower operation valve, airtight Weighing cover bottom inside is fixed with Weighing module, there is pallet at the Weighing module seat of honour, pallet is provided with liquid storage pipe, be positioned at liquid storage pipe inside bottom dropper and do not touch with liquid storage pipe inwall.
here is the further optimization and/or improvements to foregoing invention technical scheme:
above-mentioned base top is provided with core container mounting groove, and the bottom of core container is fixedly mounted in core container mounting groove by screw thread, and be provided with force breach outside the middle part of core container, the pressure transmission hole on hydraulic pressure cap is connected with pressure transducer.
above-mentionedly can be provided with the precession snap ring being fixed on core container outside by screw thread on the upper surface of base, the lower outside of precession snap ring is fixed with lower lock block, snap ring cutting ferrule is installed with in the upper outside of base, force breach is provided with outside the middle part of snap ring cutting ferrule, the upper inner of snap ring cutting ferrule is fixed with upper holder block, and the upper holder block on snap ring cutting ferrule is pressed on the lower lock block of precession snap ring.
can have semi-permeable plate seat in above-mentioned annular seal space, be fixed with mounting blocks in the bottom of semi-permeable plate seat, the upper center of base is provided with the first mounting groove, mounting blocks is arranged in the first mounting groove; The top of semi-permeable plate seat is provided with the second mounting groove, in the second mounting groove, is provided with the filter screen corresponding with the second mounting groove and semi-permeable plate from bottom to up, mounting blocks mates with topping up hole the through hole be connected with semi-permeable plate seat is equipped with.
above-mentioned displacing fluid pipe, lower operation valve outside can be provided with and store metering cover, store metering cover internal fixtion and have Connection Block, Connection Block upper port is connected with left pipe, and Connection Block lower port is connected with topping up hole, store the corresponding right pipe position of metering cover and be provided with view window, right pipe is provided with scale.
can be fixed with signaling interface outside above-mentioned airtight Weighing cover, signaling interface is connected with Weighing module.
the inside of above-mentioned airtight Weighing cover can be installed with temperature sensor, and temperature sensor is connected with signaling interface.
be fixedly installed togather by screw thread between above-mentioned snap ring cutting ferrule and base, be fixedly installed togather by screw thread between upper sealing cap and core container, be fixedly installed togather by screw thread between hydraulic pressure cap and upper sealing cap.
above-mentionedly O-ring seal can be installed between hydraulic pressure cap and upper sealing cap, between core container and upper sealing cap, O-ring seal be installed, between I-shaped pressure axis and upper sealing cap, O-ring seal be installed.
reasonable and compact in structure of the present invention, easy to use, it is pressurizeed in annular seal space by displacement pressure hole, and the air hole being communicated with groove and annular seal space realizes the upper surface of rock core and periphery pressurizes simultaneously, and high degree shortens the displacement cycle; Coordinated by displacing fluid pipe, upper operation valve and lower operation valve, realize the needs being full of displacing fluid from topping up hole to displacing fluid pipe, for accurate Weighing carries out place mat work; By airtight Weighing cover, Weighing module, dropper and liquid storage pipe with the use of, realize the object of accurately weighing.
Accompanying drawing explanation
accompanying drawing 1 is that the master of preferred embodiment looks sectional structure schematic diagram.
coding in accompanying drawing is respectively: 1 is base, 2 is core container, 3 is upper sealing cap, 4 is I-shaped pressure axis, 5 is annular seal space, 6 is topping up hole, 7 is semi-permeable plate, 8 is displacement pressure hole, 9 is hydraulic pressure cap, 10 is collar stop, 11 is hydraulic cavities, 12 is pressure transmission hole, 13 is rock core pressure cap, 14 is groove, 15 is upper operation valve, 16 is lower operation valve, 17 is dropper, 18 is airtight Weighing cover, 19 is Weighing module, 20 is pallet, 21 is liquid storage pipe, 22 is left pipe, 23 is transverse tube, 24 is right pipe, 25 is force breach, 26 is precession snap ring, 27 is snap ring cutting ferrule, 28 is semi-permeable plate seat, 29 is mounting blocks, 30 is filter screen, 31 for storing metering cover, 32 is Connection Block, 33 is view window, 34 is signaling interface, 35 is temperature sensor, 36 is O-ring seal.
Embodiment
the present invention by the restriction of following embodiment, can not 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 be described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
as shown in Figure 1, this is used for semi-permeable plate rock core capillary pressure rapid measurement device and comprises rock core displacement device and Weighing device, rock core displacement device comprises base 1, core container 2, upper sealing cap 3 and I-shaped pressure axis 4, core container 2 is fixedly mounted on base 1, sealing cap 3 is installed with at the top of core container 2, base 1, annular seal space 5 is formed between core container 2 and upper sealing cap 3, base 1 is provided with the topping up hole 6 be connected with annular seal space 5, the semi-permeable plate 7 blocking topping up hole 6 is installed in annular seal space 5, upper sealing cap 3 is respectively arranged with the displacement pressure hole 8 be connected with annular seal space 5 and up big and down small shoulder hole, hydraulic pressure cap 9 is installed with on the top of shoulder hole, collar stop 10 is fixed with in the lower inside of shoulder hole, the top of I-shaped pressure axis 4 be sleeved on the bottom of shoulder hole and seat on collar stop 10, I-shaped pressure axis 4, hydraulic cavities 11 is formed between upper sealing cap 3 and hydraulic pressure cap 9, hydraulic pressure cap 9 is provided with the pressure transmission hole 12 be connected with hydraulic cavities 11, rock core pressure cap 13 is fixedly installed with in the bottom of I-shaped pressure axis 4, the lower surface of rock core pressure cap 13 is provided with groove 14, rock core pressure cap 13 has the air hole be connected with groove 14, Weighing device comprises displacing fluid pipe, upper operation valve 15, lower operation valve 16, dropper 17, airtight Weighing cover 18, Weighing module 19, pallet 20 and liquid storage pipe 21, displacing fluid pipe is inverted u-shaped, displacing fluid pipe comprises the left pipe 22 be fixedly connected together, transverse tube 23 and right pipe 24, left pipe 22 is connected by pipe fitting with topping up hole 6, right pipe 24 top is provided with operation valve 15, bottom right pipe 24, lower operation valve 16 is installed, the dropper 17 through airtight Weighing cover 18 top is communicated with bottom lower operation valve 16, airtight Weighing cover 18 bottom inside is fixed with Weighing module 19, there is pallet 20 at Weighing module 19 seat of honour, pallet 20 is provided with liquid storage pipe 21, be positioned at liquid storage pipe 21 inside bottom dropper 17 and do not touch with liquid storage pipe 21 inwall.
like this, I-shaped pressure axis 4 can move up and down, and prevents rock core pressure cap 13 pairs of rock cores in installation process from causing damage; Mounting means between I-shaped pressure axis 4 and upper sealing cap 3, rock core pressure cap 13 is existing known field engineering, first can process the hole matched with I-shaped pressure axis 4 two diameter, after I-shaped pressure axis 4 one load holes, again by with the annulus that I-shaped pressure axis 4 intermediate shaft mates adopt to weld etc. known mode be fixed on load I-shaped pressure axis 4 hole on, can overlap and install I-shaped pressure axis 4; Semi-permeable plate 7 is existing public equipment, semi-permeable plate 7 displacing fluid can only be made to pass through and gas not by; Air hole on rock core pressure cap 13 is communicated with groove 14 and annular seal space 5 and realizes the upper surface of rock core and periphery pressurizes simultaneously, carries out displacement from the upper surface of rock core to be measured and periphery simultaneously; Rock core pressure cap 13 in up-narrow and down-wide round table-like, can increase rock core lifting surface area and avoids damaging rock core; Displacing fluid pipe, upper operation valve 15 and lower operation valve 16 coordinate, and realize the needs being full of displacing fluid from topping up hole 6 to displacing fluid pipe, for accurate Weighing carries out place mat work; Airtight Weighing cover 18 can avoid external air flow and foreign material on the impact of weighing, and reduces the impact of temperature on accurate-metering; Contactless dropper 17 and liquid storage pipe 21, substantially increase the accuracy that rock core displacement liquid is weighed, and measuring accuracy can bring up to more than per mille; Weighing module 19 is existing public technology, and it can be and measures weighing balance accurately; By base 1, core container 2, upper sealing cap 3, I-shaped pressure axis 4 and semi-permeable plate 7, make the displacing fluid displacement in rock core to Weighing device carry out measuring thus calculate the object of rock core capillary pressure, have safe and reliable, convenient disassembly and measuring period short feature, facilitate operation, improve work efficiency.Upper sealing cap 3, core container 2 and I-shaped pressure axis 4 all can be stainless steel; Rock core pressure cap 13 can be teflon.
can according to actual needs, make further optimization and/or improvements for semi-permeable plate rock core capillary pressure rapid measurement device above-mentioned:
as shown in Figure 1, base 1 top is provided with core container mounting groove, and the bottom of core container 2 is fixedly mounted in core container 2 mounting groove by screw thread, and be provided with force breach 25 outside the middle part of core container 2, the pressure transmission hole 12 on hydraulic pressure cap 9 is connected with pressure transducer.Like this can pressure in at-once monitor annular seal space 5, along with core container 2 is by the downward precession of screw thread, coupling pressure reaches setting value fast, both ensure that the needs that displacement seals, and meets again the demand to rock core end face and semi-permeable plate 7 end coupling pressure; When force breach 25 is convenient to install, instrument exerts a force.
as shown in Figure 1, the upper surface of base 1 is provided with the precession snap ring 26 being fixed on core container 2 outside by screw thread, the lower outside of precession snap ring 26 is fixed with lower lock block, snap ring cutting ferrule 27 is installed with in the upper outside of base 1, force breach 25 is provided with outside the middle part of snap ring cutting ferrule 27, the upper inner of snap ring cutting ferrule 27 is fixed with upper holder block, and the upper holder block on snap ring cutting ferrule 27 is pressed on the lower lock block of precession snap ring 26.Because core container 2 needs frequent precession to operate, the former circle of screw thread very easily damages; Continue to ensure use of the present invention by quick-replaceable precession snap ring 26 after the design of precession snap ring 26 can make screw thread damage, snap ring cutting ferrule 27 ensure that the fixing of precession snap ring 26 and convenient replacing, and when force breach 25 is convenient to install, instrument exerts a force.
as shown in Figure 1, have semi-permeable plate seat 28 in annular seal space 5, be fixed with mounting blocks 29 in the bottom of semi-permeable plate seat 28, the upper center of base 1 is provided with the first mounting groove, mounting blocks 29 is arranged in the first mounting groove; The top of semi-permeable plate seat 28 is provided with the second mounting groove, in the second mounting groove, be provided with the filter screen 30 corresponding with the second mounting groove and semi-permeable plate 7 from bottom to up, mounting blocks 29 mates with topping up hole 6 through hole be connected with semi-permeable plate seat 28 is equipped with.Like this, semi-permeable plate seat 28 ensure that the taking-up of semi-permeable plate 7, replacing and easy maintenance are quick; Filter screen 30 ensure further displacing fluid pass through and gas not by.
as shown in Figure 1, displacing fluid pipe, lower operation valve 16 outside are provided with and store metering cover 31, store metering cover 31 internal fixtion and have Connection Block 32, Connection Block 32 upper port is connected with left pipe 22, Connection Block 32 lower port is connected with topping up hole 6, store metering corresponding right pipe 24 position of cover 31 and be provided with view window 33, right pipe 24 is provided with scale.Be convenient to like this observe the situation in the whole process of rock core displacement in displacing fluid pipe, thus carry out exact operations; Can also Fast Coarse approximation quantity of fluid.
as shown in Figure 1, be fixed with signaling interface 34 outside airtight Weighing cover 18, signaling interface 34 is connected with Weighing module 19.Signaling interface 34 is connected with control treatment device, realizes clearing, weighing operation fast.
as shown in Figure 1, the inside of airtight Weighing cover 18 is installed with temperature sensor 35, and temperature sensor 35 is connected with signaling interface 34.Such can temperature variation in the airtight Weighing cover 18 of monitoring, and import signal into control treatment device by signaling interface 34, correct, realize not influenced by ambient temperature under accurate measurement.
as shown in Figure 1, be fixedly installed togather by screw thread between snap ring cutting ferrule 27 and base 1, be fixedly installed togather by screw thread between upper sealing cap 3 and core container 2, be fixedly installed togather by screw thread between hydraulic pressure cap 9 and upper sealing cap 3.Like this, each parts are fixedly installed togather by screw thread, are convenient to installation and removal.
as shown in Figure 1, O-ring seal 36 is installed between hydraulic pressure cap 9 and upper sealing cap 3, O-ring seal 36 is installed between core container 2 and upper sealing cap 3, between I-shaped pressure axis 4 and upper sealing cap 3, O-ring seal 36 is installed.Better sealing effectiveness can be played between each like this parts.
above technical characteristic constitutes most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
the use procedure of preferred embodiment:
step one: the semi-permeable plate 7 being full of saturated displacing fluid is loaded semi-permeable plate seat 28, semi-permeable plate seat 28 insertion apparatus base 1.
step 2: upper operation valve 15 emptying on Weighing device, upper operation valve 15 is connected fast with impregnator, displacing fluid is full of by 6 to the displacing fluid pipe of topping up hole, after observing bubble-free spilling by view window 33, take off impregnator, upper operation valve 15 puts gas drive state of a control, open lower operation valve 16, liquid in right pipe 24 is put into liquid storage pipe 21, liquid in right pipe 24 is blown off by upper operation valve 15 by gas, reset by signaling interface 34 and Weighing module 19, close and close operation valve 15 and lower operation valve 16.
step 3: be placed on by the rock core being full of saturated displacing fluid on semi-permeable plate 7, enters base 1 by core container 2 precession connecting upper sealing cap 3, and the pressure transmission hole 12 Bonding pressure sensor on hydraulic pressure cap 9, is tightened to specified pressure.
step 4: displacement pressure hole 8 connects displacement pressure, setting displacement pressure.
step 5: start displacement, displacement to view window 33 observe liquid level constant time, open lower operation valve 16, liquid in right pipe 24 is put into liquid storage pipe 21, upper operation valve 15 is put gas drive state and is blown off liquid in right pipe 24, by signaling interface 34 and Weighing module 19 Weighing, close lower operation valve 16 and upper operation valve 15.
step 6: increase displacement pressure displacement, repeats the operation of step 5; Until rock core no longer fluid, complete displacement and measure.
step 7: calculate semi-permeable plate 7 rock core capillary pressure.
Claims (10)
1., for a semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that comprising rock core displacement device and Weighing device, rock core displacement device comprises base, core container, upper sealing cap and I-shaped pressure axis, core container is fixedly mounted on base, sealing cap is installed with at the top of core container, base, annular seal space is formed between core container and upper sealing cap, base is provided with the topping up hole be connected with annular seal space, the semi-permeable plate blocking topping up hole is installed in annular seal space, upper sealing cap is respectively arranged with the displacement pressure hole and up big and down small shoulder hole that are connected with annular seal space, hydraulic pressure cap is installed with on the top of shoulder hole, collar stop is fixed with in the lower inside of shoulder hole, the top of I-shaped pressure axis be sleeved on the bottom of shoulder hole and seat on collar stop, I-shaped pressure axis, hydraulic cavities is formed between upper sealing cap and hydraulic pressure cap, hydraulic pressure cap is provided with the pressure transmission hole be connected with hydraulic cavities, rock core pressure cap is fixedly installed with in the bottom of I-shaped pressure axis, the lower surface of rock core pressure cap is provided with groove, rock core pressure cap has the air hole be connected with groove, Weighing device comprises displacing fluid pipe, upper operation valve, lower operation valve, dropper, airtight Weighing cover, Weighing module, pallet and liquid storage pipe, displacing fluid pipe is inverted u-shaped, displacing fluid pipe comprises the left pipe be fixedly connected together, transverse tube and right pipe, left pipe is connected by pipe fitting with topping up hole, right pipe top is provided with operation valve, bottom right pipe, lower operation valve is installed, the dropper through airtight Weighing cover top is communicated with bottom lower operation valve, airtight Weighing cover bottom inside is fixed with Weighing module, there is pallet at the Weighing module seat of honour, pallet is provided with liquid storage pipe, be positioned at liquid storage pipe inside bottom dropper and do not touch with liquid storage pipe inwall.
2. according to claim 1 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that base top is provided with core container mounting groove, the bottom of core container is fixedly mounted in core container mounting groove by screw thread, be provided with force breach outside the middle part of core container, the pressure transmission hole on hydraulic pressure cap is connected with pressure transducer.
3. according to claim 2 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that on the upper surface of base, be provided with the precession snap ring being fixed on core container outside by screw thread, the lower outside of precession snap ring is fixed with lower lock block, snap ring cutting ferrule is installed with in the upper outside of base, force breach is provided with outside the middle part of snap ring cutting ferrule, the upper inner of snap ring cutting ferrule is fixed with upper holder block, and the upper holder block on snap ring cutting ferrule is pressed on the lower lock block of precession snap ring.
4. according to claim 1 or 2 or 3 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that in annular seal space, there is semi-permeable plate seat, mounting blocks is fixed with in the bottom of semi-permeable plate seat, the upper center of base is provided with the first mounting groove, and mounting blocks is arranged in the first mounting groove; The top of semi-permeable plate seat is provided with the second mounting groove, in the second mounting groove, is provided with the filter screen corresponding with the second mounting groove and semi-permeable plate from bottom to up, mounting blocks mates with topping up hole the through hole be connected with semi-permeable plate seat is equipped with; Or/and displacing fluid pipe, lower operation valve outside are provided with and store metering cover, storing metering cover internal fixtion has Connection Block, Connection Block upper port is connected with left pipe, Connection Block lower port is connected with topping up hole, and store the corresponding right pipe position of metering cover and be provided with view window, right pipe is provided with scale.
5. according to claim 1 or 2 or 3 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that being fixed with signaling interface outside airtight Weighing cover, signaling interface is connected with Weighing module.
6. according to claim 4 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that being fixed with signaling interface outside airtight Weighing cover, signaling interface is connected with Weighing module.
7. according to claim 5 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that the inside of airtight Weighing cover is installed with temperature sensor, temperature sensor is connected with signaling interface.
8. according to claim 6 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that the inside of airtight Weighing cover is installed with temperature sensor, temperature sensor is connected with signaling interface.
9. according to claim 1 or 2 or 3 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that being fixedly installed togather by screw thread between snap ring cutting ferrule and base, be fixedly installed togather by screw thread between upper sealing cap and core container, be fixedly installed togather by screw thread between hydraulic pressure cap and upper sealing cap; Or/and, between hydraulic pressure cap and upper sealing cap, O-ring seal is installed, between core container and upper sealing cap, O-ring seal is installed, between I-shaped pressure axis and upper sealing cap, O-ring seal is installed.
10. according to claim 8 for semi-permeable plate rock core capillary pressure rapid measurement device, it is characterized in that being fixedly installed togather by screw thread between snap ring cutting ferrule and base, be fixedly installed togather by screw thread between upper sealing cap and core container, be fixedly installed togather by screw thread between hydraulic pressure cap and upper sealing cap; Or/and, between hydraulic pressure cap and upper sealing cap, O-ring seal is installed, between core container and upper sealing cap, O-ring seal is installed, between I-shaped pressure axis and upper sealing cap, O-ring seal is installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510771223.2A CN105445143A (en) | 2015-11-12 | 2015-11-12 | Device for rapidly measuring capillary pressure of semi-permeable partition rock core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510771223.2A CN105445143A (en) | 2015-11-12 | 2015-11-12 | Device for rapidly measuring capillary pressure of semi-permeable partition rock core |
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| CN109564125A (en) * | 2016-06-03 | 2019-04-02 | 福伊特专利有限公司 | To knowing for the liquid level in fluid coupling |
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