CN110500067A - Fill out sand tube and reservoir physical simulation experimental provision - Google Patents
Fill out sand tube and reservoir physical simulation experimental provision Download PDFInfo
- Publication number
- CN110500067A CN110500067A CN201810479246.XA CN201810479246A CN110500067A CN 110500067 A CN110500067 A CN 110500067A CN 201810479246 A CN201810479246 A CN 201810479246A CN 110500067 A CN110500067 A CN 110500067A
- Authority
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- China
- Prior art keywords
- fill out
- out sand
- sand tube
- socket
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004576 sand Substances 0.000 title claims abstract description 88
- 238000004088 simulation Methods 0.000 title claims abstract description 26
- 230000004308 accommodation Effects 0.000 claims abstract description 63
- 239000011435 rock Substances 0.000 claims abstract description 20
- 230000004323 axial length Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 72
- 238000007789 sealing Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003921 oil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of fill out sand tube and reservoir physical simulation experimental provision.Wherein, fill out sand tube includes: socket and the plunger assembly that is contained in socket；Plunger assembly includes push rod and the piston piece for being connected to push rod bottom；Piston piece includes: bottom plate, cover board and air bag；The accommodation space for accommodating rock core is formed between bottom plate and the bottom wall of socket；Bottom plate is connected with cover board, and the accommodating chamber for accommodating air bag is formed between bottom plate and cover board；The inside face contact of air bag and socket, to seal accommodation space；Push rod is connected with cover board, and push rod pushes cover board along the axial movement of socket, to adjust the axial length of accommodation space.Fill out sand tube and reservoir physical simulation experimental provision of the present invention, accommodation space is sealed by the inside face contact of air bag and socket, push cover board along the axial movement of socket by push rod, to adjust the axial length of accommodation space, to adjust the length of fill out sand tube, to adapt to different requirement of experiment, the cost of fill out sand tube is saved.
Description
Technical field
The present invention relates to DP technology technical field more particularly to a kind of fill out sand tube and reservoir physical simulation experimental provision.
Background technique
Mid-later development phase in oil field, the low problem of generally existing recovery ratio.Carry out actual job improve recovery ratio it
Before, laboratory physical simulation experiment is usually first carried out, the optimization for numerical simulation and technological parameter provides basic data.Wherein,
Fill out sand tube is the base apparatus of laboratory physical simulation experiment, by the particle for filling unlike material, different-grain diameter in fill out sand tube
The reservoir conditions such as different wettabilities, porosity and permeability are simulated, use scope is very extensive.
In the prior art, the fill out sand tube generallyd use is fixed length, it may be assumed that the length of fill out sand tube is fixed, and is being used
Fill out sand tube is filled full rear with particle and can be used by Cheng Zhongxu, and the length of simulation core is the length of fill out sand tube, passes through setting
A series of fill out sand tube of different lengths meets different requirement of experiment.
But in actual experiment, fixed length back-up sand length of tube is non-adjustable, and laboratory needs to be equipped with different length
Fill out sand tube, inconvenience storage, and increase economic cost.
Summary of the invention
The present invention provides a kind of fill out sand tube and reservoir physical simulation experimental provision, to overcome existing fixed back-up sand length of tube
It cannot be adjusted, the problem that economic cost is high.
The present invention provides a kind of fill out sand tube, comprising: socket and the plunger assembly being contained in the socket；The plunger
Component includes push rod and the piston piece for being connected to the push rod bottom；The piston piece includes: bottom plate, cover board and air bag；
The accommodation space for accommodating rock core is formed between the bottom plate and the bottom wall of the socket；The bottom plate is connected with the cover board, and
The accommodating chamber for accommodating the air bag is formed between the bottom plate and the cover board；The inside of the air bag and the socket
Face contact, to seal the accommodation space；The push rod is connected with the cover board, and the push rod pushes the cover board along the pipe
The axial movement of cylinder, to adjust the axial length of the accommodation space
Fill out sand tube as described above, wherein the bottom plate include the interconnecting piece being set on the push rod and with it is described
The connected abutting part of interconnecting piece；The accommodation space is formed between the abutting part and the bottom wall of the socket；The cover board
It is set on the interconnecting piece.
Fill out sand tube as described above, wherein the piston piece further includes clamp nut；The clamp nut and the connection
Portion is threadedly coupled；The bottom surface of the cover board and the balloon contacts, the top surface of the cover board is abutted with the clamp nut.
Fill out sand tube as described above, wherein the plunger assembly further includes the first pipeline；First is offered on the cover board
One end of through-hole, first pipeline is connected to the air bag, and the other end of first pipeline is used across the first through hole
It is connected in gas source.
Fill out sand tube as described above, wherein liquid collecting channel is equipped in the push rod；The one end in the liquid collecting channel with it is described
Accommodation space connection, the other end in the liquid collecting channel with collection device for being connected to.
Fill out sand tube as described above, wherein the one end in the liquid collecting channel is provided with filter screen.
Fill out sand tube as described above further includes top cover；The top of the socket is provided with first flange, and the top cover passes through
Fixing bolt is fixedly connected with the first flange；The second through-hole and third through-hole are offered on the top cover；First pipe
After the other end of line passes through the first through hole and second through-hole, for being connected to gas source；The other end of the push rod is worn
After crossing the third through-hole, for being connected to the collection device, and the other end of the push rod is fixedly connected with the top cover.
Fill out sand tube as described above, wherein be provided with sealing ring between the first flange and the top cover.
Fill out sand tube as described above, wherein the lateral surface of first pipeline and/or the push rod is provided with mark part,
For identifying the axial length of the accommodation space.
The present invention also provides a kind of reservoir physical simulation experimental provisions, including electric pump and fill out sand tube as described above；Institute
The socket bottom wall for stating fill out sand tube offers connecting hole, and the electric pump is connected to by pipeline with the connecting hole, for filling out to described
Experimental liquid is filled in the accommodation space of sandpipe.
Fill out sand tube and reservoir physical simulation experimental provision of the present invention, by the way that plunger assembly is arranged in the socket of fill out sand tube,
Plunger assembly includes push rod and the piston piece for being connected to push rod bottom；Piston piece includes bottom plate, cover board and air bag, bottom plate and pipe
The accommodation space for accommodating rock core is formed between the bottom wall of cylinder, and accommodation space is sealed by the inside face contact of air bag and socket, is led to
The axial movement that push rod pushes cover board along socket is crossed, to adjust the axial length of accommodation space, so that the length of fill out sand tube is adjusted,
To adapt to different requirement of experiment, the cost of fill out sand tube is saved.
Detailed description of the invention
Described in detail below, the above and other objects, features and advantages general of the embodiment of the present invention by referring to accompanying drawing
It becomes more clearly understood from.In the accompanying drawings, by by example and it is unrestricted in a manner of multiple embodiments of the invention are said
It is bright, in which:
Fig. 1 is the cross-sectional view of fill out sand tube of the present invention；
Fig. 2 is the top view of fill out sand tube of the present invention；
Fig. 3 is the bottom view of fill out sand tube of the present invention；
Fig. 4 is the cross-sectional view of the socket of fill out sand tube of the present invention；
Fig. 5 is the enlarged diagram of A in Fig. 1；
Fig. 6 is the cross-sectional view of the bottom plate of fill out sand tube of the present invention；
Fig. 7 is the enlarged diagram of B in Fig. 1；
Fig. 8 is the structural schematic diagram of one embodiment of reservoir physical simulation experimental provision of the present invention.
Description of symbols:
10: socket；11: first flange；
12: top cover；121: the second through-holes；
122: third through-hole；13: second flange；
14: bottom cover；141: closeouts；
20: plunger assembly；21: bottom plate；
211: interconnecting piece；212: abutting part；
213: connecting hole；214: mounting groove；
22: cover board；221: first through hole；
23: air bag；231: bladder manifolds；
24: clamp nut；25: the first pipelines；
26: push rod；30: accommodation space；
40: filter screen；50: fixing bolt；
60: fixing piece；70: sealing ring；
80: the first crossover subs；90: the second crossover subs；
100: pressure testing blind plugging；1: fill out sand tube；
2: first pipe；3: pressure gauge；
4: gas source；5: collection device；
6: second pipe；7: electric pump；
8: first pressure container；9: second pressure container.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Fig. 1 is the cross-sectional view of fill out sand tube of the present invention；Fig. 2 is the top view of fill out sand tube of the present invention；Fig. 3 is fill out sand tube of the present invention
Bottom view；Fig. 4 is the cross-sectional view of the socket of fill out sand tube of the present invention；Fig. 5 is the enlarged diagram of A in Fig. 1；Fig. 6 is the present invention
The cross-sectional view of the bottom plate of fill out sand tube；Fig. 7 is the enlarged diagram of B in Fig. 1；Fig. 8 is reservoir physical simulation experimental provision of the present invention
The structural schematic diagram of one embodiment.
Firstly the need of explanation, noun of locality "bottom", " bottom end ", " bottom " are referred to close to filling rock core in the present invention
Accommodation space one end, i.e. the direction N in Fig. 1；Noun of locality "top", " top " " top " refer to the receiving far from filling rock core
The one end in space, the i.e. direction M in Fig. 1.
Referring to figs. 1 to Fig. 4, the present embodiment provides a kind of fill out sand tube, comprising: socket 10 and the column being contained in socket 10
Plug assembly 20；Plunger assembly 20 includes push rod 26 and the piston piece for being connected to 26 bottom of push rod；Piston piece includes bottom plate 21, lid
Plate 22 and air bag 23；The accommodation space 30 for accommodating rock core is formed between bottom plate 21 and the bottom wall of socket 10；Bottom plate 21 and cover board
22 are connected, and the accommodating chamber for accommodating air bag 23, the inside of air bag 23 and socket 10 are formed between bottom plate 21 and cover board 22
Face contact, to seal accommodation space 30；Push rod 26 is connected with cover board 22, and push rod 26 pushes cover board 22 to move along the axial direction of socket 10
It is dynamic, to adjust the axial length of accommodation space 30.
Specifically, the present embodiment provides a kind of fill out sand tube, can be applied to reservoir physical simulation experiment, can be plug
Manage simulated experiment, water drive oil physical simulation experiment etc..Fill out sand tube includes socket 10 and plunger assembly 20, and plunger assembly 20 is contained in
In socket 10.The cross section of socket 10 can be arbitrary shape, and the cross section of the preferred socket 10 of the present embodiment is circle.Socket 10
It may include cylinder and bottom wall, and cylinder and the bottom wall are integrally formed, offered on bottom wall for experimental channel connection
Through-hole.Alternatively, socket 10 can also include cylinder and bottom cover, bottom cover lid is located at the bottom end of cylinder, and bottom cover can be with cylinder
Bottom end clamping, threaded connection etc., bottom cover forms the bottom wall of socket.Preferably, the bottom end of socket 10 is provided with second flange 13, the
The outer edge part of two flanges 13 offers multiple threaded holes, circumferencial direction uniform intervals of multiple threaded holes along second flange 13
Setting；Bottom cover 14 and second flange 13 are fixedly connected by multiple bolts 50, the present invention to the quantity of bolt without limitation.Bottom cover
14 center offers connecting hole, for being connect with the fluid pipeline that is filled in experiment, in non-experiment, and closeouts 141 and company
Hole connection is connect, is blocked, rock core is avoided to reveal.Optionally, in order to increase the leakproofness of accommodation space 30,13 He of second flange
Sealing ring is additionally provided between bottom cover 14, sealing ring can be rubber seal, copper sealing ring etc., at this to the structure of sealing ring
Form is without limitation.
Plunger assembly 20 includes push rod 26 and the piston piece for being connected to 26 bottom of push rod；The bottom wall of piston piece and socket 10
Between formed accommodate rock core accommodation space 30；Push rod 26 pushes piston piece along the axial movement of socket 10, to adjust filling rock
The axial length of the accommodation space 30 of the heart, realizes the length adjustment of fill out sand tube.Piston piece may include that piston body and setting exist
Sealing element outside piston body pushes piston body along the axial movement of socket 10 to adjust filling rock by applying forces to push rod
The axial length of the accommodation space 30 of the heart；Sealing element improves the leakproofness of fill out sand tube, to guarantee for sealing accommodation space 30
The accuracy of experiment.
Piston piece includes bottom plate 21, cover board 22 and air bag 23.Bottom plate 21 could be formed with interconnecting piece, be used for and cover board 22
It is connected, alternatively, bottom plate 21 and cover board 22 are all connect with push rod 26.Accommodation space is formed between bottom plate 21 and the bottom wall of socket 10
30, the lateral surface of bottom plate 21 and the inside face contact of socket 10, push rod 26 push bottom plate 21 along homogeneous tube cylinder 10 by cover board 22
Axial movement.The cross-sectional shape of bottom plate 21 is consistent with the cross-sectional shape of socket 10, it is preferable that the cross section of bottom plate 21 is preferred
For circle.
The accommodating chamber formed between the bottom surface of cover board 22 and the top surface of bottom plate 21, for accommodating air bag 23.Air bag 23 and pipe
The inside face contact of cylinder 10 improves the leakproofness of accommodation space 30 to seal accommodation space 30, guarantees the accuracy of experiment.
In the specific use process, plunger assembly 20 is assembled in the outer of socket 10, that is, connect cover board 22 and bottom plate 21
It connects, and air bag 23 is mounted in the accommodating chamber between bottom plate 21 and cover board 22, then assembled plunger assembly 20 is installed
In socket 10, axial movement of the bottom plate 21 along socket 10, accommodation space 30 between regulating base board 21 and the bottom wall of socket 10
Axial length；Then, it is filled with the gas of preset pressure into air bag 23, accommodation space 30 is sealed, preset pressure
It can require to be configured according to actual experiment, it is not limited here.
Fill out sand tube provided in this embodiment, by the way that plunger assembly is arranged in socket, plunger assembly includes push rod and company
Connect the piston piece in push rod bottom；Piston piece includes bottom plate, cover board and air bag, is formed between bottom plate and the bottom wall of socket and accommodates rock
The accommodation space of the heart seals accommodation space by the inside face contact of air bag and socket, and push rod pushes cover board along the axial direction of socket
It is mobile, to adjust the axial length of accommodation space, to adjust the length of fill out sand tube, to adapt to different requirement of experiment, save
The cost of fill out sand tube.
In some specific embodiments, bottom plate 21 includes the interconnecting piece 211 and and interconnecting piece being set on push rod 26
211 connected abutting parts 212；Accommodation space 30 is formed between abutting part 212 and the bottom wall of socket 10；Cover board 22 is set in connection
In portion 211.
Bottom plate 21 includes interconnecting piece 211 and abutting part 212, is formed between the bottom surface of abutting part 212 and the bottom wall of socket 10
The bottom surface of accommodation space 30, abutting part 212 is abutted with the rock core filled in accommodation space 30, the lateral surface and pipe of abutting part 212
The inside face contact of cylinder 10, abutting part 212 can be along the axial movement of homogeneous tube cylinder 10.The cross-sectional shape and pipe of abutting part 212
The cross-sectional shape of cylinder 10 is consistent, it is preferable that the cross section of abutting part 212 is preferably circular.The top surface of abutting part 212 is provided with
Interconnecting piece 211, the diameter of interconnecting piece 211 are less than the diameter of abutting part 212.Interconnecting piece 211 is covered for being fixedly connected with cover board 22
Plate 22 can offer threaded hole, be threadedly coupled with interconnecting piece 211；Alternatively, cover board 22 is set in the outside of interconnecting piece 211, lead to
It crosses clamp nut and realizes being fixedly connected for cover board 22 and interconnecting piece 211；Again alternatively, cover board 22 is integrally formed with interconnecting piece 211
Integral piece.
The abutting part 212 and interconnecting piece 211 of bottom plate 21 offer coaxial connecting hole 213, push rod 26 and 213 spiral shell of connecting hole
Line connection or interference fit etc., alternatively, the integral piece that push rod 26 and interconnecting piece 211 are integrally formed.
Further, in order to facilitate the installation of, a kind of specific embodiment being connect as cover board with interconnecting piece, piston piece
It further include clamp nut 24；Clamp nut 24 is threadedly coupled with interconnecting piece 211；The bottom surface of cover board 22 is contacted with air bag 23, cover board
22 top surface is abutted with clamp nut 24.
Specifically, piston piece further includes clamp nut 24；The interconnecting piece 211 of bottom plate 21 is provided with external screw thread, cover board 22
Center offers through-hole, and cover board 22 is set in outside interconnecting piece 211, and clamp nut 24 is threadedly coupled with interconnecting piece 211, clamp nut
24 bottom surface is contacted with the top surface of cover board 22,24 holddown plate 22 of clamp nut, so that the bottom surface of cover board 22 is contacted with air bag 23,
The accommodation space for accommodating air bag 23 is formed between the bottom surface of cover board 22 and the top surface of abutting part 212.
Further, plunger assembly 20 further includes the first pipeline 25；Offer first through hole 221 on cover board 22, first
One end of pipeline 25 is connected to air bag 23, and the other end of the first pipeline 25 passes through first through hole 221 for being connected to gas source.
Specifically, air bag 23 is inflated for convenience, plunger assembly 20 further includes the first pipeline 25, and gas source passes through the
One pipeline 25 carries out the gas for being filled with preset pressure to air bag 23, guarantees the leakproofness of accommodation space 30.In some embodiments,
One end of first pipeline 25 is directly connected to air bag 23, and the other end of the first pipeline 25 passes through first through hole 221 and is connected to gas source.
In further embodiments, air bag 23 further includes bladder manifolds 231；First through hole 221, air bag are opened up on cover board 22
Branch pipe 231 is connect after passing through first through hole 221 with one end of the first pipeline 25, and the other end and gas source of the first pipeline 25 connect
It connects.It is connected between bladder manifolds 231 and the first pipeline 25 by the second crossover sub 90, it is preferable that the second crossover sub 90 is
Airtight closure, to improve the leakproofness of the inflation of air bag 23.
Further, plunger assembly 20 further includes the second pipeline；One end of second pipeline is connected to accommodation space 30, the
The other end of two pipelines with collection device for being connected to.In specific experiment, the second pipeline is used to that experimental liquid to be discharged, such as
Water, oil, polymer solution etc..Second pipeline and push rod 26 can be two individual parts；Alternatively, the second pipeline and push rod 26
The integral piece being integrally formed.
As a preferred embodiment, liquid collecting channel, the one end in liquid collecting channel and accommodation space 30 are equipped in push rod 26
Connection, the other end in liquid collecting channel with collection device for being connected to.
The one end in liquid collecting channel is connected to by connecting hole 213 with accommodation space 30.Preferably, connecting hole 213 is threaded hole,
The lateral surface of push rod 26 is provided with external screw thread, and one end of push rod 26 is contained in connecting hole 213, the liquid collecting channel of push rod 26 with
While accommodation space 30 is connected to, realization push rod 26 is fixedly connected with abutting part 212, i.e., liquid collecting channel is in connection accommodation space
30 with collection device while, plunger assembly 20 does not need that additional push rod is arranged, by the push rod 26 for being provided with liquid collecting channel
Abutting part 212 can be realized to move axially in socket 10.
Certainly, in order to avoid the rock core disintegrating slag of accommodation space 30, powder etc. enter liquid collecting channel and block liquid collecting channel, collect
The one end in liquid channel is provided with filter screen 40.Specifically, the bottom end of connecting hole 213 offers mounting groove 214, mounting groove 214
Cross-sectional area is greater than the cross-sectional area of connecting hole 213, is equipped with filter screen 40, the filter screen of Different porosities in mounting groove 214
40 can rock core according to specific experiments be configured, it is not limited here.
Referring to figs. 1 to Fig. 4 and Fig. 7, the present embodiment fill out sand tube further includes top cover 12；The top of socket 10 is provided with first
Flange 11, top cover 12 are fixedly connected by fixing bolt 50 with first flange 11；The second through-hole 121 and are offered on top cover 12
Three through-holes 122；After the other end of first pipeline 25 passes through first through hole 221 and the second through-hole 121, for being connected to gas source；It pushes away
After the other end of bar 26 passes through third through-hole 122, for being connected to collection device, and the other end of push rod 26 and top cover 12 are fixed
Connection.
Specifically, the top of socket 10 is provided with first flange 11, and the outer edge part of first flange 11 offers multiple
Threaded hole, multiple threaded holes are arranged along the circumferencial direction uniform intervals of first flange 11；Top cover 12 and first flange 11 pass through more
A bolt 50 is fixedly connected, the present invention to the quantity of bolt without limitation.Central part on top cover 12 offers the second through-hole
121 and third through-hole 122；After the other end of first pipeline 25 passes through first through hole 221 and the second through-hole 121, it is connected with second
Crossover sub 90 is connected to gas source；After the other end of push rod 26 passes through third through-hole 122, it is connected with the first crossover sub 80 and receives
Acquisition means connection.Optionally, during specific experiment, need to verify the leakproofness of accommodation space 30, in verifying accommodation space
During 30 leakproofness, the other end of the first crossover sub 80 is connected with pressure testing blind plugging 100 and blocks and open up in push rod 26
Liquid collecting channel.
In order to avoid during the experiment, push rod 26 is displaced outwardly because of the pressure of accommodation space 30, push rod 26 it is another
End is fixedly connected with top cover 12.For example, the lateral surface of push rod 26 is provided with external screw thread, it is arranged with the third through-hole 122 of top cover 12
Internal screw thread be fixedly connected；Alternatively, push rod 26 is fixedly connected with top cover 12 by other clamping structures being arranged.It is preferred that
Ground, push rod 26 are fixedly connected by fixing piece 60 with top cover 12.Specifically, fixing piece 60 include two sections, first segment it is straight
Diameter is greater than the diameter of second segment, and the lateral surface of second segment is provided with external screw thread, the interior spiral shell being arranged with the third through-hole 122 of top cover 12
Line is fixedly connected；First segment is for applying active force.The center of fixing piece 60 offers axial threaded hole, the threaded hole and push rod
26 are threadedly coupled, and install simple and convenient.
Optionally, sealing ring 70 is provided between first flange 11 and top cover 12.Sealing ring 70 can be rubber seal,
Copper sealing ring etc., without limitation to the structure type of sealing ring at this.
In order to accurately and conveniently know the axial length of accommodation space 30, the lateral surface of the first pipeline 25 and/or push rod 26
It is provided with label layer, for identifying the axial length of accommodation space 30.The first situation, the outside of the first pipeline 25 and push rod 26
Face is provided with label layer, and the length scale in two label layers can be mutually authenticated；Second situation, the only outside of push rod 26
Face is provided with label layer.Preferably, the lateral surface of the third situation, push rod 26 is provided with external screw thread, in order to avoid in push rod 26
Lateral surface setting label layer it is not easy, only the lateral surface of the first pipeline 25 is provided with label layer.
The fill out sand tube structure of one specifically used embodiment is described below, invention is not limited thereto:
Fill out sand tube includes socket 10, and the top of socket 10 is provided with first flange 11, and the bottom end of socket 10 is provided with second
Flange 13.The internal diameter 40mm of socket 10, axial length 800mm, the top of socket 10 are provided with top cover 12, and top cover 12 passes through fixation
Bolt 50 is fixedly connected with first flange 11；The bottom end of socket 10 is provided with bottom cover 14, and bottom cover 14 passes through fixing bolt 50 and the
Two flanges 13 are fixedly connected.
Plunger assembly 20 include bottom plate 21, cover board 22, air bag 23, clamp nut 24, filter screen 40, the first pipeline 25 and
Push rod 26.The abutting part 212 of bottom plate 21 and the outer diameter of cover board 22 are 39mm, and the connecting hole 213 for putting 21 is hermetic seal female thread, gas
The internal diameter of capsule 23 is 12mm, outer diameter 39mm, and with a thickness of 18mm, the both ends of the second crossover sub 90 are hermetic seal female thread, outside
Diameter 7mm, internal diameter 2mm.The axial length of accommodation space 30 is 200mm, is filled with quartz sand rock core.The outer diameter of filter screen 40 is
9mm.The bladder manifolds 231 of air bag 23 are connect with the first pipeline 25 using airtight closure.The outer diameter of first pipeline 25 is 2mm, interior
Diameter is 1mm, length 800mm, and lateral surface is provided with length scale.Push rod 26 is fixedly connected by fixing piece 60 with top cover 12,
The both ends of push rod 26 are hermetic seal pin thread, outer diameter 8mm, internal diameter 2mm, length 800mm.The one of first crossover sub 80
End is the female thread cooperated with push rod 26, and the other end is four points of buttons (female thread), for being cooperatively connected with gas source connecting pipeline.
The present embodiment also provides a kind of reservoir physical simulation experimental provision, including electric pump and fill out sand tube；The pipe of fill out sand tube
10 bottom walls of cylinder offer connecting hole, and electric pump is connected to by pipeline with connecting hole, for being filled with reality in the accommodation space to fill out sand tube
Test liquid.
Specifically, reservoir physical simulation experimental provision provided in this embodiment can be used for water drive oil physical simulation experiment,
It can be used for blocking experiment simulation, it is not limited here.Electric pump can be existing pump structure, and the present invention does not limit herein
It is fixed.Fill out sand tube includes: socket 10 and the plunger assembly being contained in socket 10 20；Plunger assembly 20 includes push rod 26 and connects
Connect the piston piece in 26 bottom of push rod；Piston piece includes bottom plate 21, cover board 22 and air bag 23；The bottom wall of bottom plate 21 and socket 10
Between formed accommodate rock core accommodation space 30；Bottom plate 21 is connected with cover board 22, and is formed between bottom plate 21 and cover board 22 useful
In the accommodating chamber for accommodating air bag 23, the inside face contact of air bag 23 and socket 10, to seal accommodation space 30；Push rod 26 and cover board
22 are connected, and push rod 26 pushes cover board 22 along the axial movement of socket 10, to adjust the axial length of accommodation space 30.The present embodiment
The structure of the fill out sand tube of offer, function and effect are same as the previously described embodiments, are specifically referred to above-described embodiment, herein no longer
It is repeated.
Reservoir physical simulation experimental provision provided in this embodiment, by the way that plunger assembly is arranged in the socket of fill out sand tube,
Plunger assembly includes push rod and the piston piece for being connected to push rod bottom；Piston piece includes bottom plate, cover board and air bag, bottom plate and pipe
The accommodation space for accommodating rock core is formed between the bottom wall of cylinder, and accommodation space is sealed by the inside face contact of air bag and socket, is led to
The axial movement that push rod pushes cover board along socket is crossed, to adjust the axial length of accommodation space, so that the length of fill out sand tube is adjusted,
To adapt to different requirement of experiment, the cost of fill out sand tube is saved.
A kind of water drive oil physical simulation experiment device is detailed below, but invention is not limited thereto:
Referring to Fig. 8, water drive oil physical simulation experiment device provided in this embodiment includes: fill out sand tube 1, first pipe, pressure
Power table 3, gas source 4, collection device 5, second pipe 6, electric pump 7, first pressure container 8, second pressure container 9.The of fill out sand tube 1
One pipeline 25 is connected to by the second crossover sub 90 with one end of first pipe 2, and the other end of second pipe 2 is connected to gas source 4,
And pressure gauge 3 is installed on second pipe 2；The liquid collecting channel opened up in push rod 26 passes through the first crossover sub 80 and the second pipe
The one end in road 6 is connected to, and the other end of second pipe 6 is connected to collection device 5.The connecting hole of 1 low side of fill out sand tube is connected with pipeline,
The other end of pipeline connects a three-way connection, and the Single port of three-way connection is connect by pipeline with first pressure container 8, and first
Pressure vessel 8 is connect by pipeline with electric pump 7；The another port of three-way connection is connect by pipeline with second pressure container 9, the
Two pressure vessels 9 are connect by pipeline with another electric pump 7.
Water drive oil physical simulation experiment is carried out using above-mentioned water drive oil physical simulation experiment device, the specific steps are as follows:
(1) bottom cover 14 is fixedly connected with second flange 13, several quartz sands is packed into fill out sand tube 1, obtain a fixed length
The rock core of degree；
(2) plunger assembly 20 is assembled, and plunger assembly 20 is seated in fill out sand tube 1 on rock core, by 25 He of the first pipeline
Push rod 26 is passed through from top cover 12, then top cover 12 is fixedly connected with first flange 11, using fixing piece 60 that push rod 26 is fixed
On top cover 12；
(3) by reading the outer length scale of the first pipeline 25, the physical length for obtaining sand pack is 201mm；
(4) the first pipeline 25 is connected into first pipe 2 and gas source 4 by the second crossover sub 90, in plunger assembly 20
Air bag 23 inflate, the blowing pressure 5MPa；
(5) first pressure container 8 is connect with the connecting hole of fill out sand tube 1, push rod 26 the first crossover sub 80 it is another
One end connects pressure testing blind plugging 100, and electric pump 7 is pumped into water flooding to 1 pressure testing of fill out sand tube by first pressure container 8, pressure test pressure with
The blowing pressure is identical, is 5MPa, and internal pressure is reduced to 0.01MPa within 5 minutes, is less than 0.1MPa, and pressure testing is qualified；
(6) after pressure testing is qualified, pressure testing blind plugging 100 is opened, pressure in fill out sand tube 1 is shed, push rod 26 and collection device 5 is connected
It is logical；
(7) valve of first pressure container 8 is opened, adjusting electric pump flow is 0.1mL/min, is saturated stratum to fill out sand tube 1
Water；
(8) after being saturated water flooding, the valve of first pressure container 8 is closed, opens the valve of second pressure container 9, is adjusted
Electric pump flow is 0.1mL/min, is saturated crude oil to fill out sand tube 1；
(9) after the outlet end of second pipe 6 is fuel-displaced, 9 valve of second pressure container is closed, opens 8 valve of first pressure container
Door, adjustings electric pump flow are 1mL/min, start flood pot test, in experimentation, the outlet end liquid measure of record second pipe 6,
Moisture content changes with time；
(10) stop experiment when the outlet end production fluid moisture content of second pipe 6 reaches 98%, electric pump is closed, to outlet end
After not going out liquid, pressure in air bag 23 is shed, then disassembled, cleaned to fill out sand tube 1.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the above description, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or
The description of " some examples " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example include
In at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms necessarily needle
Pair be identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can any one or
It can be combined in any suitable manner in multiple embodiment or examples.In addition, without conflicting with each other, those skilled in the art
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined and group
It closes.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of fill out sand tube characterized by comprising socket and the plunger assembly being contained in the socket；
The plunger assembly includes push rod and the piston piece for being connected to the push rod bottom；
The piston piece includes: bottom plate, cover board and air bag；It is formed between the bottom plate and the bottom wall of the socket and accommodates rock core
Accommodation space；The bottom plate is connected with the cover board, and is formed between the bottom plate and the cover board described for accommodating
The accommodating chamber of air bag；The inside face contact of the air bag and the socket, to seal the accommodation space；
The push rod is connected with the cover board, and the push rod pushes the cover board along the axial movement of the socket, to adjust
State the axial length of accommodation space.
2. fill out sand tube according to claim 1, which is characterized in that the bottom plate includes the connection being set on the push rod
Portion and the abutting part being connected with the interconnecting piece；It is empty that the receiving is formed between the abutting part and the bottom wall of the socket
Between；
The cover board is set on the interconnecting piece.
3. fill out sand tube according to claim 2, which is characterized in that the piston piece further includes clamp nut；The compression
Nut is threadedly coupled with the interconnecting piece；
The bottom surface of the cover board and the balloon contacts, the top surface of the cover board is abutted with the clamp nut.
4. fill out sand tube according to claim 1, which is characterized in that the plunger assembly further includes the first pipeline；
First through hole is offered on the cover board, one end of first pipeline is connected to the air bag, first pipeline
The other end passes through the first through hole for being connected to gas source.
5. fill out sand tube according to claim 4, which is characterized in that be equipped with liquid collecting channel in the push rod；The liquid collecting is logical
The one end in road is connected to the accommodation space, and the other end in the liquid collecting channel with collection device for being connected to.
6. fill out sand tube according to claim 5, which is characterized in that the one end in the liquid collecting channel is provided with filter screen.
7. fill out sand tube according to claim 5, which is characterized in that further include top cover；The top of the socket is provided with
One flange, the top cover are fixedly connected by fixing bolt with the first flange；
The second through-hole and third through-hole are offered on the top cover；The other end of first pipeline pass through the first through hole and
After second through-hole, for being connected to gas source；After the other end of the push rod passes through the third through-hole, it is used for and the receipts
Acquisition means connection, and the other end of the push rod is fixedly connected with the top cover.
8. fill out sand tube according to claim 7, which is characterized in that be provided between the first flange and the top cover close
Seal.
9. according to the described in any item fill out sand tube of claim 4-7, which is characterized in that first pipeline and/or the push rod
Lateral surface be provided with label layer, for identifying the axial length of the accommodation space.
10. a kind of reservoir physical simulation experimental provision, which is characterized in that including described in electric pump and claim any one of 1-9
Fill out sand tube；
The socket bottom wall of the fill out sand tube offers connecting hole, and the electric pump is connected to by pipeline with the connecting hole, be used for
Experimental liquid is filled in the accommodation space of the fill out sand tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479246.XA CN110500067A (en) | 2018-05-18 | 2018-05-18 | Fill out sand tube and reservoir physical simulation experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479246.XA CN110500067A (en) | 2018-05-18 | 2018-05-18 | Fill out sand tube and reservoir physical simulation experimental provision |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734342A (en) * | 2020-06-08 | 2020-10-02 | 西安石油大学 | Oil reservoir engineering simulation sand filling experimental device |
| CN111963118A (en) * | 2020-08-25 | 2020-11-20 | 中海石油（中国）有限公司天津分公司 | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation |
| CN114047298A (en) * | 2021-11-17 | 2022-02-15 | 中国石油天然气股份有限公司 | Sand filling model manufacturing device and manufacturing method thereof |
-
2018
- 2018-05-18 CN CN201810479246.XA patent/CN110500067A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734342A (en) * | 2020-06-08 | 2020-10-02 | 西安石油大学 | Oil reservoir engineering simulation sand filling experimental device |
| CN111734342B (en) * | 2020-06-08 | 2022-02-15 | 西安石油大学 | Oil reservoir engineering simulation sand filling experimental device |
| CN111963118A (en) * | 2020-08-25 | 2020-11-20 | 中海石油（中国）有限公司天津分公司 | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation |
| CN111963118B (en) * | 2020-08-25 | 2022-10-11 | 中海石油（中国）有限公司天津分公司 | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation |
| CN114047298A (en) * | 2021-11-17 | 2022-02-15 | 中国石油天然气股份有限公司 | Sand filling model manufacturing device and manufacturing method thereof |
| CN114047298B (en) * | 2021-11-17 | 2024-04-09 | 中国石油天然气股份有限公司 | Sand filling model manufacturing device and manufacturing method thereof |
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