CN104632149B - Layered pressure measuring and production allocator and underground layered oil production device - Google Patents
Layered pressure measuring and production allocator and underground layered oil production device Download PDFInfo
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- CN104632149B CN104632149B CN201410838162.2A CN201410838162A CN104632149B CN 104632149 B CN104632149 B CN 104632149B CN 201410838162 A CN201410838162 A CN 201410838162A CN 104632149 B CN104632149 B CN 104632149B
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- production mandrel
- debugging
- main body
- production
- blanking plug
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- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- 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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a layered pressure measuring and yield allocation device, which solves the technical problem that a layered oil extraction pump in the prior art has poor layered oil extraction effect, and comprises: the production allocation device comprises a throwing and fishing pressure measuring blanking plug, an outer sleeve, a production allocation device main body, a guide upper joint, a lower joint, a throwing head, a fishing head, a debugging shaft, a debugging sleeve and a sealing body; the inner hole is formed in the production allocator main body along the axis, the dropping and fishing pressure measuring blanking plug is positioned in the inner hole, the outer sleeve is fixedly sleeved outside the production allocator main body, the upper end of the outer sleeve is fixedly guided to the upper joint, the lower end of the outer sleeve is fixedly connected with the lower joint, the upper end of the dropping and fishing pressure measuring blanking plug is provided with a fishing head, the fishing head is arranged in the dropping and conveying head, the upper end of the sealing body is connected with the dropping and conveying head, the lower end of the sealing body is connected with the debugging sleeve, and the debugging sleeve is sleeved with the. The method realizes more controllable and more efficient layered oil production, and has better effect compared with the existing layered oil production mode.
Description
Technical field
The dress the invention belongs to oil recovery technique field, more particularly to a kind of delaminating pressure testing production mandrel and laminated distributor under well recover the oil
Put.
Background technology
In order to give full play to the productive potentialities of each oil reservoir, to multiple zone commingled producing well, at present using layered oil pump realizing
Two-layer or commingling production, improve single well productivity.
Layered oil pump is the mode being combined that two-stage (two-speed) pump links together, and separates two production layers with packer
The fluid of two oil reservoirs is produced by position, the feed pathway of each pump respectively, and is converged at top oil pipe or upper pump standing valve
Extraction.
But, existing layered oil pump is to combine two-stage (two-speed) pump, can only not only realize that dividing for two oil reservoirs adopts well,
And oil production by layer pressure measurement cannot be carried out, it can thus be seen that existing oil production by layer mode effect on driving birds is not good.
The content of the invention
It is an object of the invention to provide a kind of delaminating pressure testing production mandrel and laminated distributor under well extracting device of oil, substitute original layering
The oil production method of oil extraction pump, solving layered oil pump of the prior art carries out the technical problem of oil production by layer effect on driving birds is not good.
In a first aspect, the invention provides a kind of delaminating pressure testing production mandrel, including：Pulling pressure measurement blanking plug, overcoat, with product
Device main body, is oriented to top connection, and head is delivered in lower contact, and fishing head debugs axle, debugging set, seal；
The production mandrel main body is provided with endoporus along axis, and the pulling pressure measurement blanking plug is positioned in the endoporus, described
Production mandrel main body fixed sleeves fill the overcoat, and the guiding top connection, the lower end of the overcoat are fixed in the upper end of the overcoat
The fixation lower contact, the pulling pressure measurement blanking plug upper end have fishing head, and the fishing head is placed in the delivery head, described
The upper end of seal is connected with the delivery head, and the lower end of the seal is connected with the debugging set, and the debugging covers and institute
State debugging axle socket；
Wherein, the debugging axle top is provided with ground laminar flow pressure gaging hole, is laterally provided with stratum static opening, by the debugging
Threaded adjusting between set and the debugging axle, controls the stratum static opening and is in open mode or closed mode.
Preferably, the middle part of the production mandrel main body is laterally provided with birth pore, and the pulling pressure measurement blanking plug is laterally provided with
With it is described with birth pore connect with produce pressure tap.
Preferably, the inside of the production mandrel main body is provided with positioning taper hole, is formed with bullet in the middle part of the seal；
Wherein, when the bullet forms positioning with the positioning taper hole so that the pulling pressure measurement blanking plug is positioned at
In the endoporus, and cause it is described with birth pore with described with producing the corresponding connection of pressure tap.
Preferably, cam is provided with the pulling pressure measurement blanking plug, the camshaft that the seal top is arranged is fixed
The cam, limited location stuck point between the bottom of the fishing head and the cam, the spacing stuck point adjust the cam and exist
Block the lower surface for being oriented to top connection.
Preferably, torsion spring is provided with the cam.
Preferably, O-ring seal is cased with the middle part of the seal, the centre bore fitted seal with the production mandrel main body.
Preferably, the lower end of the debugging axle is formed with guiding cone.
Preferably, the inside of the debugging axle is formed with cavity along axis, is provided with piezometer in the cavity.
Preferably, the delaminating pressure testing production mandrel includes multiple pulling pressure measurement blanking plugs being arranged concentrically, wherein, it is many
The diameter of the individual pulling pressure measurement blanking plug is different.
Second aspect, the invention provides a kind of laminated distributor under well extracting device of oil, including packer, rod-type pumping unit, and
Any one delaminating pressure testing production mandrel described in first aspect,
Wherein, the delaminating pressure testing production mandrel, including：Pulling pressure measurement blanking plug, overcoat, production mandrel main body are connect in guiding
Head, lower contact deliver head, and fishing head debugs axle, debugging set, seal；
The production mandrel main body is provided with endoporus along axis, and the pulling pressure measurement blanking plug is positioned in the endoporus, described
Production mandrel main body fixed sleeves fill the overcoat, and the guiding top connection, the lower end of the overcoat are fixed in the upper end of the overcoat
The fixation lower contact, the pulling pressure measurement blanking plug upper end have fishing head, and the fishing head is placed in the delivery head, described
The upper end of seal is connected with the delivery head, and the lower end of the seal is connected with the debugging set, and the debugging covers and institute
State debugging axle socket；
Wherein, the debugging axle top is provided with ground laminar flow pressure gaging hole, is laterally provided with stratum static opening, by the debugging
Threaded adjusting between set and the debugging axle, controls the stratum static opening and is in open mode or closed mode.
By technical scheme provided by the present invention, at least have the following technical effect that or advantage：
By delaminating pressure testing production mandrel provided by the present invention, can be supporting with packer, rod-type pumping unit, use packer
Each oil reservoir is separated, delaminating pressure testing production mandrel is delivered among the main body of delaminating pressure testing production mandrel by throw in catcher, is formed
The independent oil inlet passage of each oil reservoir, it is to avoid the interference of the interlayer pressure difference of each oil reservoir, effectively plays each oil reservoir production potential.
Stream pressure value when oil reservoir production is measured when oil reservoir is produced is realized, oil reservoir measures the static pressure of oil reservoir when closing, and then realizes
More controllable, more efficient oil production by layer, compares existing oil production by layer mode better.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the profile of delaminating pressure testing production mandrel in the embodiment of the present invention；
Profiles of the Fig. 2 for institute's displacement structure in production mandrel main body in Fig. 1.
Specific embodiment
In order to solve the technical problem of oil production by layer mode effect on driving birds is not good in prior art, the invention provides a kind of layering
Pressure measurement production mandrel, total thinking are as follows：
Delaminating pressure testing production mandrel is constituted by production mandrel main body and pulling pressure measurement blanking plug etc., pulling pressure measurement blanking plug is delivered
Among the production mandrel main body of delaminating pressure testing production mandrel, the oil inlet passage of each oil reservoir independence formed, it is to avoid interlayer between each oil reservoir
Interference, effectively plays each oil reservoir production potential, realizes that oil reservoir measures stream pressure value when oil reservoir is produced when producing, when oil reservoir is closed
Measure the static pressure of oil reservoir.And then more controllable, more efficient oil production by layer is realized, compare existing oil production by layer mode effect
More preferably.
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to Fig. 1, shown in Fig. 2, Fig. 1 is the profile of delaminating pressure testing production mandrel in the embodiment of the present invention, during Fig. 2 is Fig. 1
The profile of institute's displacement structure in production mandrel main body, the delaminating pressure testing production mandrel in the embodiment of the present invention include：Pulling pressure measurement is blocked up
Plug device 1, overcoat 2, production mandrel main body 3 are oriented to top connection 4, and lower contact 5, delivery 6, fishing head 7 are debugged axle 8, debug set 9,
Seal 10；
In embodiments of the present invention, production mandrel main body 3 is provided with endoporus along axis, and pulling pressure measurement blanking plug 1 is seated at production mandrel
In the endoporus of main body 3 and positioned, 3 fixed sleeves of production mandrel main body are equipped with overcoat 2, connect in the upper end fixed guide of overcoat 2
4, lower contact 5 is fixed in the lower end of overcoat 2.
Specifically, the top of overcoat 2 is formed with female thread, and the bottom for being oriented to top connection 4 is formed with external screw thread, so as to overcoat
2 top is to be threadedly coupled with top connection 4 is oriented to, to realize being oriented to the fixation of top connection 4 and overcoat 2.
Specifically, the bottom of overcoat 2 is formed with female thread, and the top of lower contact 5 is formed with female thread, so as to overcoat 2
Bottom is to be threadedly coupled with lower contact 5, to realize the fixation of lower contact 5 and overcoat 2.
Specifically, the middle part of overcoat 2 is welded as a whole with production mandrel main body 3.
Specifically, the top for being oriented to top connection 4 is formed with tubing round thread, and for connected pipes, the bottom of lower contact 5 is formed
There is tubing round thread, for connected pipes.
In embodiments of the present invention, there is fishing head 7 upper end of pulling pressure measurement blanking plug 1, and fishing head 7 is placed in delivery 6.
Specifically, spring 11 is provided between fishing head 7 and delivery 6, can cause the length of fishing heads 7 is adjusted relative to delivery 6
Degree.
In embodiments of the present invention, pulling pressure measurement blanking plug 1 is outer has seal 10, upper end and the delivery head of seal 10
6 connections, the lower end of seal 10 are connected with debugging set 9, and bottom and the debugging axle 8 of debugging set 9 are socketed.
Specifically, there is pin hole on the top of delivery 6, pin is delivered for delivering to install during pulling pressure measurement blanking plug 1.
Meanwhile, external screw thread is formed with the bottom of delivery 6, be threadedly coupled with the female thread on 10 top of seal, realized close
The upper end of envelope body 10 and the connection of delivery 6.
Specifically, external screw thread is formed with the bottom of seal 10, be threadedly coupled with the female thread of debugging set 9, it is real
The lower end of seal 10 and the connection of debugging set 9 are showed.
Specifically, the bottom of debugging set 9 is formed with female thread, and the external screw thread formed with the top of debugging axle 8 is carried out
Threaded connection, it is achieved thereby that the bottom of debugging set 9 and the socket for debugging axle 8.
In specific implementation process, the inside center of seal 10 is also combined sealing with debugging axle 8.
In embodiments of the present invention, it is provided with pulling pressure measurement blanking plug 1 with pressure tap 12 is produced, is provided with production mandrel main body 3
With with produce pressure tap 12 communicate with birth pore 13.The top of debugging axle 8 is provided with ground laminar flow pressure gaging hole 14, debugs the medial side of axle 8
To being provided with stratum static opening 15.
Specifically, the middle part of production mandrel main body 3 is opened in birth pore 13, can is one or more, specifically, Ke Yi
The middle part of production mandrel main body 3 is laterally provided with two or three with birth pore 13.
Specifically, the delaminating pressure testing production mandrel in the embodiment of the present invention includes multiple pulling pressure measurement blanking plugs being arranged concentrically
1, wherein, the diameter of multiple pulling pressure measurement blanking plugs 1 is different, realizes multiple zone pressure measurement.
In one embodiment, the state debugging set 9 and debugging axle 8 of ground laminar flow pressure gaging hole 14 and stratum static opening 15
Between threaded adjusting adjust controlling, specifically, by debugging the threaded adjusting between set 9 and debugging axle 8, control stratum
Stream pressure gaging hole 14 is in open mode or closed mode, and control stratum static opening 15 is in open mode or closes shape
State：
1st, axle 8 is debugged when elongation is to maximum, communicate with ground laminar flow pressure pressure tap 14 with pressure tap 12 is produced, then debug axle 8
On ground laminar flow pressure hole 14 be now that in open mode, stratum static pressure pressure tap 15 is to be closed, at this moment this layer of position
For production status, at this point it is possible to measure the ground laminar flow pressure value of production layer position；
2nd, axle 8 is debugged when minimum is foreshortened to, communicated with stratum static opening 15 with pressure tap 12 is produced, on debugging axle 8
Ground laminar flow pressure gaging hole 14 is now in closed mode, and stratum static pressure pressure tap 15 is in open mode.
In another embodiment, ground laminar flow pressure gaging hole 14 can fill plug sealing, control by way of plug is sealed
Ground laminar flow presses the state of gaging hole 14.Specifically, when local laminar flow pressure gaging hole 14 is equipped with sealing plug, at ground laminar flow pressure gaging hole 14
In closed mode；When local laminar flow pressure gaging hole 14 is without sealing plug, laminar flow pressure gaging hole 14 in ground is in open mode.And stratum is quiet
The state reference aforementioned embodiments of pressure gaging hole 15.
By aforementioned delaminating pressure testing production mandrel, deliver 6 pulling pressure measurement blanking plug 1 is delivered to into production mandrel main body 3 among,
On pulling pressure measurement blanking plug 1 with pressure tap 12 and communicating with birth pore 13 in production mandrel main body 3 is produced, it is right by regulation on ground
Screw thread of the debugging axle 8 between debugging set 9 is elongated or shortened：
(1) axle 8, is debugged when elongation is to maximum, ground laminar flow pressure hole 14 is in open mode, and stratum static pressure pressure tap 1 is
It is closed, at this moment this layer of position is production status, can measure the ground laminar flow pressure value of production layer position；
(2) axle 8, is debugged when foreshortening to minimum, laminar flow pressure gaging hole 14 in ground is closed, at stratum static pressure pressure tap 15
In open mode, at this moment this layer of position is closed mode, it is impossible to produces, can measure the stratum static pressure of closed layer position.
Could be aware that based on above-mentioned operation principle, according to geology production requirement, pulling pressure measurement blanking plug 1 is delivered to accordingly
Layer position, then equivalent layer position be at producing or closes production status, production layer position then measures ground laminar flow pressure value during production, does not give birth to
What payzone position then measured is stratum static pressure.It is achieved thereby that the ground laminar flow of production layer position is obtained by pulling pressure measurement blanking plug 1
Pressure value and do not produce the stratum static pressure of layer position and enroll out, for analyzing and judging the formation pressure of each layer position during oil well production
Situation of change.
Further, the delaminating pressure testing production mandrel provided by the embodiment of the present invention, is additionally provided with pulling pressure measurement blanking plug 1
Cam 16, the lower surface for being oriented to top connection 4 can block cam 16, because during pulling pressure measurement blanking plug 1, cam 16 is anchored to guiding
Under top connection 4 so that cut off the delivery pin in delivery 6, pulling pressure measurement blanking plug 1 can successfully disengage dropping feeder 6.
In order to adjust whether the lower surface for being oriented to top connection 4 blocks cam 16, the limited location card between the bottom of fishing head 7 and cam 16
Point, whether to be blocked in the lower surface for being oriented to top connection 4 by spacing stuck point adjustment cam 16.
Further, in order to fix cam 16, the top of seal 10 is provided with camshaft, cam 16 is fixed in cam
On axle.
Further, in order that pulling pressure measurement blanking plug 1 smoothly can be proposed, torsion spring is provided with cam 16, there is provided
Twisting resistance come ensure fishing head 7 above carry when, cam 16 can return, so as to pulling pressure measurement blanking plug 1 can be suggested.
Further, the middle part suit O-ring seal 17 of seal 10, the centre bore fitted seal with production mandrel main body 3, also
Can coordinate to seal stratum baroport 15 with seal 10.
Further, the middle part of seal 10 is formed with bullet A, corresponding, is formed with the inner side of production mandrel main body 3 suitable
Bullet A in the middle part of the positioning taper hole matched somebody with somebody, with seal 10 is formed and is accurately positioned, at this moment, in production mandrel main body 3 with birth pore 13
It is just right with pressure tap 12 is produced with pulling pressure measurement blanking plug 1, pressure tap 12 is produced with matching somebody with somebody with ditch wildcard birth pore 13.
Delaminating pressure testing production mandrel in the embodiment of the present invention, is additionally included in inside production mandrel main body 3 and is provided with guiding taper hole, just
Among pulling pressure measurement blanking plug 1 is seated at the endoporus of production mandrel main body 3, and guiding cone is formed with the lower end of debugging axle 8,
Enter in production mandrel main body 3 in order to pulling pressure measurement blanking plug 1.
Specifically, in order to realize formation testing pressure, the inside for debugging axle 8 is formed with cavity 18 along axis, and cavity 18 is filled
There is piezometer, for formation testing pressure, but, in specific implementation process, thermometer can also be installed in cavity 18, be used for
Formation testing temperature.
Based on same inventive concept, another embodiment of the present invention provides a kind of laminated distributor under well extracting device of oil, including packing
Device, rod-type pumping unit, and any one the delaminating pressure testing production mandrel described in previous embodiment, with reference to shown in Fig. 1 and Fig. 2, including：
Pulling pressure measurement blanking plug 1, overcoat 2, production mandrel main body 3 are oriented to top connection 4, and axle is debugged in lower contact 5, delivery 6, fishing head 7
8, debugging set 9；Production mandrel main body 3 is provided with endoporus along axis, and pulling pressure measurement blanking plug 1 is positioned in endoporus, outside production mandrel main body 3
Fixed suit overcoat 2, the upper end fixed guide top connection 4 of overcoat 2, lower contact 5, pulling pressure measurement blocking are fixed in the lower end of overcoat 2
There is fishing head 71 upper end of device, and fishing head 7 is placed in delivery 6, and the upper end of seal 10 is connected with delivery 6, seal 10
Lower end is connected with debugging set 9, and debugging set 9 is socketed with debugging axle 8；Wherein, debug 8 top of axle and be provided with ground laminar flow pressure gaging hole 14, side
To stratum static opening 15 is provided with, by debugging the threaded adjusting between set 9 and debugging axle 8, control at stratum static opening 15
In open mode or closed mode.
Delaminating pressure testing production mandrel in the present embodiment refers to previous embodiment, and miscellaneous part refers to prior art, in order to say
Bright book it is succinct, be not described herein.
Technical scheme in the embodiments of the present invention, at least has the following technical effect that or advantage：
By delaminating pressure testing production mandrel provided by the present invention, can be supporting with packer, rod-type pumping unit, use packer
Each oil reservoir is separated, delaminating pressure testing production mandrel is delivered among the main body of delaminating pressure testing production mandrel by throw in catcher, is formed
The independent oil inlet passage of each oil reservoir, it is to avoid the interference of the interlayer pressure difference of each oil reservoir, effectively plays each oil reservoir production potential.
Stream pressure value when oil reservoir production is measured when oil reservoir is produced is realized, oil reservoir measures the static pressure of oil reservoir when closing, and then realizes
More controllable, more efficient oil production by layer, compares existing oil production by layer mode better.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of delaminating pressure testing production mandrel, it is characterised in that include：Pulling pressure measurement blanking plug, overcoat, production mandrel main body are oriented to
Head is delivered in top connection, lower contact, and fishing head debugs axle, debugging set, seal；
The production mandrel main body is provided with endoporus along axis, and the pulling pressure measurement blanking plug is positioned in the endoporus, described with product
Device main body fixed sleeves fill the overcoat, and the guiding top connection is fixed in the upper end of the overcoat, and the lower end of the overcoat is fixed
The lower contact, the pulling pressure measurement blanking plug upper end have fishing head, and the fishing head is placed in the delivery head, the sealing
The upper end of body is connected with the delivery head, and the lower end of the seal is connected with the debugging set, and the debugging covers and the tune
Examination axle socket；
Wherein, the debugging axle top is provided with ground laminar flow pressure gaging hole, is laterally provided with stratum static opening, by the debugging set with
Threaded adjusting between the debugging axle, controls the stratum static opening and is in open mode or closed mode.
2. delaminating pressure testing production mandrel as claimed in claim 1, it is characterised in that the middle part of the production mandrel main body is laterally provided with
With birth pore, the pulling pressure measurement blanking plug be laterally provided with it is described with birth pore connect with produce pressure tap.
3. delaminating pressure testing production mandrel as claimed in claim 2, it is characterised in that the inside of the production mandrel main body is provided with positioning
Taper hole, is formed with bullet in the middle part of the seal；
Wherein, when the bullet forms positioning with the positioning taper hole so that the pulling pressure measurement blanking plug is positioned at described
In endoporus, and cause it is described with birth pore with described with producing the corresponding connection of pressure tap.
4. delaminating pressure testing production mandrel as claimed in claim 1, it is characterised in that be provided with the pulling pressure measurement blanking plug convex
Wheel, the camshaft that the seal top is arranged fix the cam, limited between the bottom of the fishing head and the cam
Position stuck point, the spacing stuck point adjust the cam and block in the lower surface for being oriented to top connection.
5. delaminating pressure testing production mandrel as claimed in claim 4, it is characterised in that be provided with torsion spring on the cam.
6. delaminating pressure testing production mandrel as claimed in claim 1, it is characterised in that be cased with fluid sealant in the middle part of the seal
Circle, the centre bore fitted seal with the production mandrel main body.
7. delaminating pressure testing production mandrel as claimed in claim 1, it is characterised in that the lower end of the debugging axle is formed with guide cone
Body.
8. delaminating pressure testing production mandrel as claimed in claim 7, it is characterised in that the inside of the debugging axle is formed with along axis
Cavity, is provided with piezometer in the cavity.
9. delaminating pressure testing production mandrel as claimed in claim 1, it is characterised in that the delaminating pressure testing production mandrel includes multiple same
The pulling pressure measurement blanking plug that the heart is arranged, wherein, the diameter of multiple pulling pressure measurement blanking plugs is different.
10. a kind of laminated distributor under well extracting device of oil, it is characterised in that including packer, rod-type pumping unit, and such as claim 1-
Delaminating pressure testing production mandrel in 9 described in arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838162.2A CN104632149B (en) | 2014-12-29 | 2014-12-29 | Layered pressure measuring and production allocator and underground layered oil production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838162.2A CN104632149B (en) | 2014-12-29 | 2014-12-29 | Layered pressure measuring and production allocator and underground layered oil production device |
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| CN104632149A CN104632149A (en) | 2015-05-20 |
| CN104632149B true CN104632149B (en) | 2017-04-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888650B (en) * | 2016-04-15 | 2019-10-29 | 中国石油天然气股份有限公司 | Gas well storage type integrated layered production allocation pressure gauge |
| CN107120079B (en) * | 2017-06-14 | 2020-09-18 | 中国石油天然气股份有限公司 | Throwing and fishing type back flushing valve |
| CN114856548A (en) * | 2022-05-20 | 2022-08-05 | 西南石油大学 | Chemical flooding pressure-dividing well layering pressure measuring device |
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| CN201687465U (en) * | 2010-04-07 | 2010-12-29 | 大庆油田有限责任公司 | Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead |
| CN202500553U (en) * | 2012-01-29 | 2012-10-24 | 孙忠国 | Device for monitoring pressure and temperature in layered water injection |
| CN103510906A (en) * | 2013-10-21 | 2014-01-15 | 东北石油大学 | Adjustable variable-differential-pressure constant-flow blanking plug |
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