CN207111055U - A kind of restraining liner - Google Patents
A kind of restraining liner Download PDFInfo
- Publication number
- CN207111055U CN207111055U CN201721064012.6U CN201721064012U CN207111055U CN 207111055 U CN207111055 U CN 207111055U CN 201721064012 U CN201721064012 U CN 201721064012U CN 207111055 U CN207111055 U CN 207111055U
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- China
- Prior art keywords
- screen casing
- movable block
- tube
- undershoot
- slit
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Abstract
It the utility model is related to a kind of restraining liner；Belong to mechanical sand control water-control sieve tube technical field.It is made up of basic screen casing, undershoot slit-tube, upper calking pipe and elastomer block retainer ring；Basic screen casing upper end is set with upper calking pipe by upper support ring；Basic screen casing lower end is set with undershoot slit-tube by lower support ring；Flexible fastening ring is provided between upper calking pipe and undershoot slit-tube, filling haydite is filled with respectively in the cavity between undershoot slit-tube and upper calking pipe and basic screen casing.The restraining liner is simple in construction, practicality is good, in the course of work, upper and lower elastomer block can produce small elastic deformation according to the pressure of corresponding oil reservoir, thus the haydite voidage for being caught in sand grains region can be increased, sand grains is entered in basic screen casing with crude oil, and then enables the screen casing to keep certain permeability；Simultaneously as filling haydite surface is coated with the coating that oleophylic goes water characteristic so that this, which fills out screen casing, has the effect of sand control control water, can effectively reduce mined crude oil water content.
Description
Technical field
It the utility model is related to a kind of restraining liner；Belong to mechanical sand control water-control sieve tube technical field.
Background technology
When the series of strata conjunction of set more than having in oil well is adopted, due to the pressure between oil reservoir, reservoir physics property, oil property equal difference
It is different, more serious interlayer interference be present, prevent part oil reservoir from playing due effect.Done to reduce or eliminate interlayer
Disturb, answer separate zone production, including oil production by layer, seperated layer water injection and its supporting technology.Currently used for Oil/gas Well separate zone production and its
Oil production by layer, be oil reservoir be layered position by tripping in fill out screen casing with reach oil reservoir separation, oil production by layer, sand control control water effect
Fruit.Conventional gravel filling screen casing is monoblock type, internal only one type gravel of filling, when there is sand grains to enter inside screen casing, i.e.,
When gravel pore size is less than sand grains diameter, sand grains will be stuck in screen casing gravel, be caught in sand grains it is excessive when, screen casing integrally permeates
Rate step-down, the failure of screen casing may finally be caused.
The content of the invention
The purpose of this utility model is：Offer is a kind of simple in construction, and practicality is good, to solve existing gravel packing screen
Be caught in sand grains it is excessive when, screen casing overall permeability step-down, the restraining liner of screen failure problem may finally be caused.
The technical solution of the utility model is：
A kind of restraining liner, it is made up of basic screen casing, undershoot slit-tube, upper calking pipe and elastomer block retainer ring；It is special
Sign is：Basic screen casing upper end is set with upper calking pipe by upper support ring；Basic screen casing lower end is set with by lower support ring
Undershoot slit-tube；Flexible fastening ring, undershoot slit-tube and upper calking pipe and basic screen casing are provided between upper calking pipe and undershoot slit-tube
Between cavity in be filled with filling haydite respectively, be provided with bullet between the filling haydite and flexible fastening ring in upper calking pipe
Property block, lower elastomer block is provided between the filling haydite and flexible fastening ring in undershoot slit-tube.
Described upper support ring and lower support ring are welded with basic screen casing respectively.
Described filling haydite surface scribbles the coating of the water matter of oleophylic.
Described basic screen casing upper and lower ends termination is respectively arranged with external screw thread.
Described flexible fastening ring is fitting to connection with upper elastomer block and lower elastomer block respectively.
Filling haydite particle diameter between described undershoot slit-tube and basic screen casing is more than between upper calking pipe and basic screen casing
Filling haydite particle diameter.
Described upper elastomer block and lower elastomer block are made up of upper movable block, lower movable block and spring respectively, under upper movable block
Side is provided with lower movable block, is respectively arranged with pilot hole on the corresponding surface of upper movable block and lower movable block, is provided with pilot hole
Spring.
Described upper elastomer block and lower elastomer block are made up of upper movable block, lower movable block and spring respectively, upper movable block bottom
Portion is provided with cavity, and slip cap is equipped with lower movable block in cavity；Bullet is provided with cavity between upper movable block and lower movable block
Spring.
Described upper movable block, lower movable block are made up of elastomeric material respectively.
The utility model has the advantage of：
The restraining liner is simple in construction, and practicality is good, and in the course of work, upper and lower elastomer block can be according to corresponding oil reservoir
Pressure produces small elastic deformation by spring and material property, thus can increase the haydite voidage for being caught in sand grains region, make
Obtaining sand grains can enter in basic screen casing with crude oil, and then enable the screen casing to keep certain permeability；Simultaneously as fill
Fill out haydite surface and be coated with the coating that oleophylic goes water characteristic so that this, which fills out screen casing, has the effect of sand control control water, can effectively reduce exploitation
Crude oil water content out.
To show performance of the present utility model, applicant is tested to its sand controlling result and anti-stifled ability：
Test device whole device is by fluid stocking system, the pressurization feed flow circulatory system, the experimental simulation device that shakes out, oil-sand
Piece-rate system, the part of automatic data acquisition system five are formed；
Fluid stocking system is used to store test fluid；
Pressurization the feed flow circulatory system be mainly made up of high-pressure plunger membrane pump with variable-frequency motor, thus it is possible to vary discharge pressure with
And flow, analogue means is circulated and feeds oil-sand mixed liquor.
The experimental simulation device that shakes out is the main body of complete equipment, diameter 1m, height 0.6m, wall thickness 25mm, maximum pressure-bearing energy
Power 30MPa, whole autoclave body are forged by 16 manganese steel, inside and outside zinc-plated anti-corrosion.Four oil-feeds are symmetrical arranged in the middle part of kettle surrounding
Mouthful, bottom sets an oil-out, and autoclave body radially inside sets 3 pressure sensors in diverse location, to test
Pressure change before and after sand control blockage.Circumferentially spirality sets four perspective mouths to inner wall of kettle respectively, installs high pressure steel
Change glass and minisize pick-up head, to observe the blocking situation of sand control tube outer surface in experimentation.
Oil-sand separation system is made up of two rotation riddlers and a supersonic wave cleaning machine, and 400 mesh of installation are accurate in rotation riddler
Wire screen is filtered, all particles for being more than 38 μm can be filtered, reach the purpose of oil-sand separation.Supersonic wave cleaning machine will pass through sand control
The sand separated after pipe by rotation riddler carries out washing oil drying, subsequently to be measured sample.
Automatic data acquisition system includes a computer, the data collecting card of 36 passage and a set of data acquisition
Software, real-time collection, display and the store function of data can be realized.
Measurement device parameter
Three pressure sensors are set, measure inlet pressure, sand-proof pipe external pressure, outlet pressure respectively；
Flow sensor, measurement experiment flow are set；
Sand production rate is determined, calculates output sand sand content in oil；
Grain size analysis is carried out to output sand, evaluates sand block precision；
Different gravel filling thickness Imitating experiments can be carried out.
Sand control method choice experiment is studied
（1）Object of experiment
By simulated target different reservoir characteristic, production capacity, sand production rate and the sand block precision under different sand control methods are evaluated,
Establish the sand control method for being adapted to target oil gas field optimal.
（2）Experimental principle
This experiment is glued by simulating the size distribution under certain reservoir conditions, shale content, clay mineral component, fluid
Degree, tests the flow, pressure difference and sand production rate by sand-proof pipe, calculate rice productivity index IP come the conveyance capacity of evaluating sand prevention tube with
Anti-clogging.
（3）Experimentation and flow
1) equipment debugging, installation.It is initially injected experimental oil, it is ensured that each note oil inlet has fluid outflow, while to pressure
Measuring system is proofreaded；
2) carried out matching somebody with somebody sand according to the size distribution of simulated formation, screen casing is put into autoclave, and the reservoir sand matched somebody with somebody is filled out
Around screen casing, then carry out autoclave sealing；
3) autoclave outlet is closed, starts the pressurization feed flow circulatory system, circulation of fluid, is stable at test pressure, opens out
Mouth valve, while computer data acquisition system is opened, start to test, the data such as record flow, each point pressure；
4) for the output sand of experiment, carry out laser particle size analysis and measure the quality of sand grains in different periods；
5) when flow, pressure and other parameters are stablized 40 minutes, termination of pumping, sand-proof pipe is split out, taken pictures, circulating pump, dredge pipeline,
Cleaning equipment.
（4）Experiment condition
1) reservoir median grain diameter：250um
2) shale content：10%
3) viscosity of crude：200mpa.s
4) Gravel packing：16-30 mesh
5) screen casing pattern：The utility model screen casing, fixed filling screen casing, high-quality screen casing
（5）Comparison of experiment results
。
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is mplifying structure schematic diagram at the A in Fig. 1；
Fig. 3 is the structural representation of the elastomer block after the utility model improves；
Fig. 4 is the structural representation of the elastomer block after the utility model improves again.
In figure：1st, basic screen casing, 2, upper calking pipe, 3, undershoot slit-tube, 4, elastomer block retainer ring, 5, upper support ring, 6, under
Support ring, 7, upper elastomer block, 8, lower elastomer block, 9, filling haydite, 10, upper movable block, 11, lower movable block, 12, spring, 13, recessed
Chamber.
Embodiment
The restraining liner is made up of basic screen casing 1, upper calking pipe 2, undershoot slit-tube 3 and elastomer block retainer ring 4；Basis sieve
The upper end of pipe 1 is set with upper calking pipe 2 by the upper support ring 5 of welding；6 sets of the lower support ring that the basic lower end of screen casing 1 passes through welding
Equipped with undershoot slit-tube 3；Flexible fastening ring 4 is installed between upper calking pipe 2 and undershoot slit-tube 3；Undershoot slit-tube 3 and upper calking pipe 2
Filling haydite 9 is filled with cavity between basic screen casing 1 respectively, filling haydite 9 surface scribbles the painting of the water matter of oleophylic
Layer.Filling haydite 9 particle diameter between undershoot slit-tube 3 and basic screen casing 1 is more than the filling between upper calking pipe 2 and basic screen casing 1
The particle diameter of haydite 9.Elastomer block 7 is provided between filling haydite 9 and flexible fastening ring 4 in upper calking pipe 2, in undershoot slit-tube 3
Filling haydite 9 and flexible fastening ring 4 between be provided with lower elastomer block 8.Upper elastomer block 7 and lower elastomer block 8 are consolidated with elasticity respectively
Determine ring 4 to be fitting to connection（Referring to accompanying drawing 1-2）.
Upper elastomer block 7 and lower elastomer block 8 are made up of upper movable block 10, lower movable block 11 and spring 12 respectively, upper movable block
10 lower sections are provided with lower movable block 11, and pilot hole is respectively arranged with the corresponding surface of upper movable block 10 and lower movable block 11, assemble
Spring 12 is provided with hole（Referring to accompanying drawing 3）, during assembling, by basic screen casing 1 and calking pipe to upper elastomer block 7 and lower elastomer block
8 both sides form sealing, with prevent sand sedimentation youngster between upper movable block 10 and lower movable block 11 cause upper movable block 10 with
It can not be closed between lower movable block 11.
The upper and lower ends termination of basic screen casing 1 of the restraining liner is respectively arranged with external screw thread, with when in use be used for and
Box cupling connects.During work, by the restraining liner lower going-into-well middle finger stand oil layer separating layer, due to undershoot slit-tube 3 and basic screen casing 1
Between filling haydite 9 particle diameter be more than the particle diameter of filling haydite 9 between upper calking pipe 2 and basic screen casing 1 so that undershoot slit-tube 3
Permeability it is relatively bigger；And because upper elastomer block 7 and lower elastomer block 8 are made up of elastomeric material respectively.Can in the course of work
The small elasticity of compression is produced by spring 12 and material property to deform, thus can increase filling with the pressure according to corresponding oil reservoir
Voidage between haydite 9 so that sand grains can enter in basic screen casing 1 with crude oil, so that the restraining liner is protected
Hold certain permeability.Simultaneously as filling haydite 9 surface scribbles the coating of the water matter of oleophylic；So that the restraining liner
With sand control and control water effect, effectively the moisture content of crude oil can be gone out by exploitation reducig.
As the improvement of upper elastomer block 7 and lower elastomer block 8, upper elastomer block 7 and lower elastomer block 8 respectively by upper movable block 10,
Lower movable block 11 and spring 12 are formed, and the upper bottom of movable block 7 is provided with cavity 13, and slip cap is equipped with lower movable block 8 in cavity 13；
Spring 12 is provided with inner cavity 13 between upper movable block 7 and lower movable block 8.By upper movable block 10 and lower movable block 11 it
Between mutual sheathing, can effectively increase the sealing property between upper movable block 10 and lower movable block 11, can root in the course of work
According to the pressure of corresponding oil reservoir by the compression of material property and structure, increase the voidage between filling haydite 9 so that sand
Grain can enter in basic screen casing 1 with crude oil, so that the restraining liner keeps certain permeability.
Claims (9)
1. a kind of restraining liner, it is by basic screen casing（1）, undershoot slit-tube（3）, upper calking pipe（2）With elastomer block retainer ring（4）
Form；It is characterized in that：Basic screen casing（1）Upper end passes through upper support ring（5）It is set with calking pipe（2）；Basic screen casing（1）Under
End passes through lower support ring（6）It is set with undershoot slit-tube（3）；Upper calking pipe（2）With undershoot slit-tube（3）Between be provided with flexible fastening
Ring（4）, undershoot slit-tube（3）With upper calking pipe（2）With basic screen casing（1）Between cavity in be filled with filling haydite respectively（9）,
Upper calking pipe（2）Interior filling haydite（9）With flexible fastening ring（4）Between be provided with elastomer block（7）, undershoot slit-tube（3）It is interior
Filling haydite（9）With flexible fastening ring（4）Between be provided with lower elastomer block（8）.
A kind of 2. restraining liner according to claim 1, it is characterised in that：Described upper support ring（5）With lower support
Ring（6）Respectively with basic screen casing（1）Welding.
A kind of 3. restraining liner according to claim 1, it is characterised in that：Described basic screen casing（1）Upper and lower ends
Termination is respectively arranged with external screw thread.
A kind of 4. restraining liner according to claim 1, it is characterised in that：Described flexible fastening ring（4）Respectively with
Upper elastomer block（7）With lower elastomer block（8）It is fitting to connection.
A kind of 5. restraining liner according to claim 1, it is characterised in that：Described undershoot slit-tube（3）Sieved with basis
Pipe（1）Between filling haydite（9）Particle diameter is more than upper calking pipe（2）With basic screen casing（1）Between filling haydite（9）Particle diameter.
A kind of 6. restraining liner according to claim 1 or 5, it is characterised in that：Described filling haydite（9）Surface applies
There is the coating of the water matter of oleophylic.
A kind of 7. restraining liner according to claim 1, it is characterised in that：Described upper elastomer block（7）With lower elasticity
Block（8）Respectively by upper movable block（10）, lower movable block（11）And spring（12）Form, upper movable block（10）Lower section is provided with lower work
Motion block（11）, upper movable block（10）With lower movable block（11）Corresponding surface on be respectively arranged with pilot hole, be provided with pilot hole
Spring（12）.
A kind of 8. restraining liner according to claim 1, it is characterised in that：Described upper elastomer block（7）With lower elasticity
Block（8）Respectively by upper movable block（10）, lower movable block（11）And spring（12）Form, upper movable block（10）Bottom is provided with cavity
（13）, cavity（13）Interior slip cap is equipped with lower movable block（11）；Upper movable block（10）With lower movable block（11）Between cavity
（13）Inside it is provided with spring（12）.
A kind of 9. restraining liner according to claim 7 or 8, it is characterised in that：Described upper movable block（10）With under
Movable block（11）It is made up respectively of elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721064012.6U CN207111055U (en) | 2017-08-24 | 2017-08-24 | A kind of restraining liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721064012.6U CN207111055U (en) | 2017-08-24 | 2017-08-24 | A kind of restraining liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111055U true CN207111055U (en) | 2018-03-16 |
Family
ID=61570598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721064012.6U Expired - Fee Related CN207111055U (en) | 2017-08-24 | 2017-08-24 | A kind of restraining liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111055U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756831A (en) * | 2018-05-28 | 2018-11-06 | 中国海洋石油集团有限公司 | A kind of horizontal well control water completion structure of self-adaptation type |
| CN110715887A (en) * | 2018-07-12 | 2020-01-21 | 中国石油化工股份有限公司 | Bituminous sand porosity determination device and method |
| CN112392447A (en) * | 2020-12-04 | 2021-02-23 | 中国石油大学(北京) | Sieve tube |
-
2017
- 2017-08-24 CN CN201721064012.6U patent/CN207111055U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756831A (en) * | 2018-05-28 | 2018-11-06 | 中国海洋石油集团有限公司 | A kind of horizontal well control water completion structure of self-adaptation type |
| CN110715887A (en) * | 2018-07-12 | 2020-01-21 | 中国石油化工股份有限公司 | Bituminous sand porosity determination device and method |
| CN112392447A (en) * | 2020-12-04 | 2021-02-23 | 中国石油大学(北京) | Sieve tube |
| CN112392447B (en) * | 2020-12-04 | 2022-04-19 | 中国石油大学(北京) | Sieve tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20200824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |