CN110513072A - A kind of ultradeep well open hole packer - Google Patents
A kind of ultradeep well open hole packer Download PDFInfo
- Publication number
- CN110513072A CN110513072A CN201910997134.8A CN201910997134A CN110513072A CN 110513072 A CN110513072 A CN 110513072A CN 201910997134 A CN201910997134 A CN 201910997134A CN 110513072 A CN110513072 A CN 110513072A
- Authority
- CN
- China
- Prior art keywords
- central tube
- tube
- rubber sleeve
- packing rubber
- open hole
- 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.)
- Withdrawn
Links
- 238000012856 packing Methods 0.000 claims abstract description 63
- 238000001802 infusion Methods 0.000 claims abstract description 38
- 241000459479 Capsula Species 0.000 claims abstract description 23
- 230000010412 perfusion Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 21
- 238000005213 imbibition Methods 0.000 claims description 9
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 15
- 238000005457 optimization Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of ultradeep well open hole packers, including central tube, the top connection on central tube and lower contact, the packing rubber sleeve between top connection and lower contact, are equipped with interior plugging mechanism in the central tube；The interior plugging mechanism includes the main infusion tube being set to inside central tube, several secondary perfusion tubes, the expansion capsula interna between central tube and packing rubber sleeve for being connected in main infusion tube.The ultradeep well open hole packer, required oil mass when reducing work compared to conventional packer, and expansion capsula interna is provided in packing rubber sleeve, packing rubber sleeve can be prevented to be damaged in well and packing is caused to be failed, safety is higher, and layered extraction can be carried out by central tube after designated position blocks, can be used for carrying out the sampling or acquisition of different depth, it is functional stronger.
Description
Technical field
The invention belongs to packer fields, and in particular to the multi-functional and highly-safe ultradeep well of one kind is insulated with naked eye
Device.
Background technique
Packer means with elastic sealing elements, and insulated between various sizes tubing string and wellbore whereby and tubing string it
Between annular space, and completely cut off payzone, (note) liquid produced with control, the downhole tool of protection sleeve pipe, which reduce Wel packings to block up
Water working procedure can conveniently realize no killing well operation without open flow, and the two-way receiving high pressure of energy, long service life.
The common packers that power source is blocked using oily or water some at present, mostly carried out by central tube
It conveys inside hydraulic oil to packing rubber sleeve, until down space on packing rubber sleeve deformation partition pipeline, but this kind of packer can only
Enough play the role of blocking pipeline, can not directly carry out liquid in extraction well, and play the role of the packing rubber sleeve of packing
Once impaired, then the oil pressure that will lead to inside is unstable, is ruptured so as to cause packing rubber sleeve so that failure is insulated, without one
Fixed subsequent protection and emergency function.
Summary of the invention
The object of the invention is that solve the above-mentioned problems and to provide a kind of structure simple, design reasonable a kind of more
Function and highly-safe ultradeep well open hole packer.
The present invention through the following technical solutions to achieve the above objectives:
A kind of ultradeep well open hole packer, top connection and lower contact including central tube, on central tube are set to top connection
Packing rubber sleeve between lower contact, the central tube is interior to be equipped with interior plugging mechanism；
The interior plugging mechanism includes the main infusion tube being set to inside central tube, several pair infusions being connected in main infusion tube
Pipe, the expansion capsula interna between central tube and packing rubber sleeve, expansion capsula interna has certain deformability, and has centainly
Toughness.
As a further optimization solution of the present invention, central tube, and main infusion tube are run through in the upper end of the main infusion tube
Upper end is open end, and the lower end of the main infusion tube is closed end, and the upper end of main infusion tube is located at the lower position of central nozzle,
Guarantee that the course of work between main infusion tube and central tube will not interfere with each other.
As a further optimization solution of the present invention, central tube, the expansion capsula interna are run through in one end of the secondary perfusion tube
It is connect by secondary perfusion tube with main infusion tube.
As a further optimization solution of the present invention, the secondary perfusion tube is evenly distributed on the inside of central tube, and secondary defeated
Sealing element is equipped between liquid pipe and central tube, secondary perfusion tube, which is uniformly distributed, can guarantee the energy when oil or water enter in expansion capsula interna
It is enough even into, it is ensured that expansion capsula interna can uniformly be heaved.
As a further optimization solution of the present invention, it is equipped in the top connection solid on top connection sealing ring and packing rubber sleeve
Determine part, top connection sealing ring is located at the upper end of top connection, and packing rubber sleeve upper fixing element is located at the lower end of top connection.
As a further optimization solution of the present invention, it is equipped in the lower contact solid under lower contact sealing ring and packing rubber sleeve
Determine part, lower contact sealing ring is located at the lower end of lower contact, and fixing piece is located at the upper end of lower contact under packing rubber sleeve.
As a further optimization solution of the present invention, the upper end of the packing rubber sleeve is fixed on top connection and packing rubber sleeve
Between fixing piece, the lower end of the packing rubber sleeve is fixed under lower contact and packing rubber sleeve between fixing piece.
As a further optimization solution of the present invention, the central tube is equipped with several imbibition slots, and imbibition slot uniformly divides
For cloth on the lower end wall of central tube, on the one hand imbibition slot can make liquid absorption amount increase, while it is also possible that in liquid one
A little magazines can be left out.
As a further optimization solution of the present invention, it is connected with valve at the upper end of the main infusion tube, control is facilitated to press
Power.
As a further optimization solution of the present invention, the central tube inner space and the inner space of interior plugging mechanism are mutual
It is not connected to, the diameter of the diameter of the main infusion tube and secondary perfusion tube is respectively less than the diameter of central tube.
The beneficial effects of the present invention are:
1) present invention is provided with independent pressure charging system, the work of independent control packing rubber sleeve, oil or water from master in central tube
Perfusion tube and secondary perfusion tube enter in expansion capsula interna after flowing through, and expand space of the capsula interna in and are gradually filled and heave, heave
Expansion capsula interna prop up packing rubber sleeve, until packing rubber sleeve packing drilling, and is influenced in packing rubber sleeve by extraneous factor
And it is damaged, then expanding capsula interna can prevent internal grease from leaking from breakage, have duplicate protection, and safety is higher；
2) without circulation between the central tube and liquid-transport pipe-line in the present invention, it is ensured that the mutual not shadow between packing process and drawing liquid process
It rings, after the upper down space packing that will drill, can carry out extracting the liquid in the lower space of packing rubber sleeve packing by central tube
The liquid of body, extraction circulates in central tube, and does not interfere with the oil pressure in infusion supervisor and infusion adjutant, is suitable for carrying out
Layered extraction and sampling；
3) the configuration of the present invention is simple, stability is high, and design rationally, is easy to implement.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is partial cutaway view of the invention；
Fig. 3 is the sectional view at B-B of the present invention；
Fig. 4 is the enlarged view at A of the present invention.
In figure: 1, central tube；2, interior plugging mechanism；20, main infusion tube；21, capsula interna is expanded；22, secondary perfusion tube；23, close
Sealing；3, top connection；30, top connection sealing ring；31, packing rubber sleeve upper fixing element；4, packing rubber sleeve；5, lower contact；50, it is connect under
Head sealing ring；51, fixing piece under packing rubber sleeve.
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below
Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field
Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
Embodiment 1
As shown in Figs 1-4, a kind of ultradeep well open hole packer, including central tube 1, the top connection 3 on central tube 1 under
Connector 5, the packing rubber sleeve 4 between top connection 3 and lower contact 5, central tube 1 is interior to be equipped with interior plugging mechanism 2；
Interior plugging mechanism 2 includes that main infusion tube 20 inside the central tube 1, several pairs being connected in main infusion tube 20 are defeated
Liquid pipe 22, the expansion capsula interna 21 between central tube 1 and packing rubber sleeve 4, expansion capsula interna 21 are used to receive oil or water, and one
Gradually expansion is heaved under fixed output pressure, enriches the gap between central tube 1 and packing rubber sleeve 4 and gradually by packing rubber sleeve
4 jack up, and make its homogeneous deformation until wellhole is insulated, so that being spatially separating up and down；
Central tube 1 is run through in the upper end of main infusion tube 20, and the upper end of main infusion tube 20 is open end, and the lower end of main infusion tube 20 is
Closed end, the upper end of main infusion tube 20 are connected with the output pressure mechanism of oil or water, under certain pressure effect so that oil or
Water from circulation in main infusion tube 20 and secondary perfusion tube 22 and until in expansion capsula interna 21, expansion capsula interna 21 under the action of liquid by
Gradually heave, tamp the gap between packing rubber sleeve 4 and central tube 1, and make packing rubber sleeve 4 with expansion heaving for capsula interna 21 and
Deformation until packing rubber sleeve 4 touches borehole wall, and forms certain pressure, so that wellhole is broken by the upper down space at packing
Layer；
Central tube 1 is run through in one end of secondary perfusion tube 22, and expansion capsula interna 21 passes through secondary perfusion tube 22 and connect with main infusion tube 20, secondary defeated
Liquid pipe 22 and 20 junction of main infusion tube keep sealing, and can use and be integrated；
Secondary perfusion tube 22 is evenly distributed on the inside of central tube 1, and is equipped with sealing element 23 between secondary perfusion tube 22 and central tube 1,
Sealing element 23 may insure central tube 1 do not had in drawing liquid liquid from the gap location between secondary perfusion tube 22 and central tube 1 into
Enter in packing rubber sleeve 4, it is ensured that not circulating mutually between two infusion routes；
Top connection sealing ring 30 and packing rubber sleeve upper fixing element 31 are equipped in top connection 3, top connection sealing ring 30 is located at top connection 3
Upper end, packing rubber sleeve upper fixing element 31 is located at the lower end of top connection 3；
Fixing piece 51 under lower contact sealing ring 50 and packing rubber sleeve is equipped in lower contact 5, lower contact sealing ring 50 is located at lower contact 5
Lower end, fixing piece 51 is located at the upper end of lower contact 5 under packing rubber sleeve；The upper end of packing rubber sleeve 4 is fixed on top connection 3 and packing
Between packing element upper fixing element 31, the lower end of packing rubber sleeve 4 is fixed under lower contact 5 and packing rubber sleeve between fixing piece 51；
Central tube 1 is equipped with several imbibition slots, and imbibition slot is evenly distributed on the lower end wall of central tube 1, the size of imbibition slot
The imbibition slot of different accuracy can be opened up on central tube 1, can play increase liquid absorption amount according to the place actually utilized
With the effect of impurity screening；
It is connected with valve at the upper end of main infusion tube 20, valve closing when expanding capsula interna 21 and heaving to required degree can be true
The stabilization of packing pressure, and when needing to take out packer, valve is opened to the oil or water that may make in expansion capsula interna 21
Enough pressure is lost, and is squeezed out under packing rubber sleeve 4 and the rebound effect power of expansion 21 deformation of capsula interna；
1 inner space of central tube is not connected to mutually with the inner space of interior plugging mechanism 2, the diameter of main infusion tube 20 and secondary perfusion tube
22 diameter is respectively less than the diameter of central tube 1, and the gap between main infusion tube 20 and central tube 1 is used for drawing liquid.
It should be noted that the device connected at the port of the main infusion tube 20 in central tube 1 and interior plugging mechanism 2 is equal
It is the prior art, such as pump, pressure control device.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (10)
1. a kind of ultradeep well open hole packer, including central tube (1), the top connection (3) and lower contact that are set on central tube (1)
(5), the packing rubber sleeve (4) being set between top connection (3) and lower contact (5), it is characterised in that: be equipped in the central tube (1)
Interior plugging mechanism (2)；
The interior plugging mechanism (2) includes set on central tube (1) internal main infusion tube (20), is connected on main infusion tube (20)
Several secondary perfusion tubes (22), the expansion capsula interna (21) that is set between central tube (1) and packing rubber sleeve (4).
2. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: the main infusion tube (20)
Central tube (1) is run through in upper end, and the upper end of main infusion tube (20) is open end, and the lower end of the main infusion tube (20) is silent
End.
3. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: the pair perfusion tube (22)
Central tube (1) is run through in one end, and the expansion capsula interna (21) passes through secondary perfusion tube (22) and connect with main infusion tube (20).
4. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: the pair perfusion tube (22) is equal
The even inside for being centrally located pipe (1), and sealing element (23) are equipped between secondary perfusion tube (22) and central tube (1).
5. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: set in the top connection (3)
There are top connection sealing ring (30) and packing rubber sleeve upper fixing element (31), top connection sealing ring (30) is located at the upper end of top connection (3),
Packing rubber sleeve upper fixing element (31) is located at the lower end of top connection (3).
6. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: set in the lower contact (5)
There is fixing piece (51) under lower contact sealing ring (50) and packing rubber sleeve, lower contact sealing ring (50) is located at the lower end of lower contact (5),
Fixing piece (51) is located at the upper end of lower contact (5) under packing rubber sleeve.
7. a kind of ultradeep well open hole packer according to claim 5 or 6, it is characterised in that: the packing rubber sleeve (4)
Upper end be fixed between top connection (3) and packing rubber sleeve upper fixing element (31), the lower end of the packing rubber sleeve (4) is fixed on down
Under connector (5) and packing rubber sleeve between fixing piece (51).
8. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: set on the central tube (1)
There are several imbibition slots, imbibition slot is evenly distributed on the lower end wall of central tube (1).
9. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: the main infusion tube (20)
Valve is connected at upper end.
10. a kind of ultradeep well open hole packer according to claim 1, it is characterised in that: the central tube (1) is internal
Space is not connected to mutually with the inner space of interior plugging mechanism (2), the diameter of the main infusion tube (20) and secondary perfusion tube (22)
Diameter is respectively less than the diameter of central tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997134.8A CN110513072A (en) | 2019-10-20 | 2019-10-20 | A kind of ultradeep well open hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997134.8A CN110513072A (en) | 2019-10-20 | 2019-10-20 | A kind of ultradeep well open hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110513072A true CN110513072A (en) | 2019-11-29 |
Family
ID=68634351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910997134.8A Withdrawn CN110513072A (en) | 2019-10-20 | 2019-10-20 | A kind of ultradeep well open hole packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513072A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206266U (en) * | 1986-08-30 | 1988-10-12 | 华北石油管理局采油工艺研究所 | Multifunctional blockage |
| CN2091349U (en) * | 1991-04-19 | 1991-12-25 | 化学工业部沈阳橡胶工业制品研究所 | Expansion glue tube |
| CN2528933Y (en) * | 2001-11-02 | 2003-01-01 | 中国石油天然气股份有限公司 | Oil well fracture gravel filling anti-sand device |
| US20030196795A1 (en) * | 2002-04-17 | 2003-10-23 | Andrew Kutac | Inflatable packer with prestressed bladder |
| CN200971777Y (en) * | 2006-07-09 | 2007-11-07 | 蔺吉荣 | Multifunction oil output increasing device |
| CN101089360A (en) * | 2007-07-12 | 2007-12-19 | 西南石油大学 | Well completion method and device of diverticulum with outer packer combined with sieve tube |
| CN104653145A (en) * | 2013-11-25 | 2015-05-27 | 天津大港油田钻采技术开发公司 | Long-rubber-barrel differential pressure type water filling packer capable of washing well |
| CN204877367U (en) * | 2015-07-23 | 2015-12-16 | 成都科特柯本科技有限公司 | Open hole packer packing element |
| CN107882518A (en) * | 2017-11-27 | 2018-04-06 | 山东省邱集煤矿 | Hydrology hole hole cleaning device and application method |
| CN107939358A (en) * | 2017-11-28 | 2018-04-20 | 中国石油化工股份有限公司 | Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method |
| CN108386160A (en) * | 2018-01-30 | 2018-08-10 | 中国石油天然气股份有限公司 | The deblocking type sand control pipe structure of screen casing under energy flushing pump |
| CN108397176A (en) * | 2017-02-08 | 2018-08-14 | 中国石油化工股份有限公司 | A kind of horizontal well injecting type segmentation packing steam injection string and technique |
| CN109594962A (en) * | 2018-11-18 | 2019-04-09 | 东北石油大学 | Pressure break returns row's sand control component, big orifice sand control back-off packer and sand-preventing process |
| WO2019071357A1 (en) * | 2017-10-12 | 2019-04-18 | Beth Louise Parker | Depth discrete multi-level downhole system for groundwater testing and management |
| CN109723404A (en) * | 2019-03-04 | 2019-05-07 | 中国煤炭地质总局广东煤炭地质局勘查院 | Coal measure gas prospect pit naked eye device for plugging and method |
| CN209040800U (en) * | 2018-07-23 | 2019-06-28 | 中交通力建设股份有限公司 | A kind of improved air bag stop grouting plug |
| CN210564457U (en) * | 2019-10-20 | 2020-05-19 | 达坦能源科技（上海）有限公司 | Open hole packer for ultra-deep well |
-
2019
- 2019-10-20 CN CN201910997134.8A patent/CN110513072A/en not_active Withdrawn
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206266U (en) * | 1986-08-30 | 1988-10-12 | 华北石油管理局采油工艺研究所 | Multifunctional blockage |
| CN2091349U (en) * | 1991-04-19 | 1991-12-25 | 化学工业部沈阳橡胶工业制品研究所 | Expansion glue tube |
| CN2528933Y (en) * | 2001-11-02 | 2003-01-01 | 中国石油天然气股份有限公司 | Oil well fracture gravel filling anti-sand device |
| US20030196795A1 (en) * | 2002-04-17 | 2003-10-23 | Andrew Kutac | Inflatable packer with prestressed bladder |
| CN200971777Y (en) * | 2006-07-09 | 2007-11-07 | 蔺吉荣 | Multifunction oil output increasing device |
| CN101089360A (en) * | 2007-07-12 | 2007-12-19 | 西南石油大学 | Well completion method and device of diverticulum with outer packer combined with sieve tube |
| CN104653145A (en) * | 2013-11-25 | 2015-05-27 | 天津大港油田钻采技术开发公司 | Long-rubber-barrel differential pressure type water filling packer capable of washing well |
| CN204877367U (en) * | 2015-07-23 | 2015-12-16 | 成都科特柯本科技有限公司 | Open hole packer packing element |
| CN108397176A (en) * | 2017-02-08 | 2018-08-14 | 中国石油化工股份有限公司 | A kind of horizontal well injecting type segmentation packing steam injection string and technique |
| WO2019071357A1 (en) * | 2017-10-12 | 2019-04-18 | Beth Louise Parker | Depth discrete multi-level downhole system for groundwater testing and management |
| CN107882518A (en) * | 2017-11-27 | 2018-04-06 | 山东省邱集煤矿 | Hydrology hole hole cleaning device and application method |
| CN107939358A (en) * | 2017-11-28 | 2018-04-20 | 中国石油化工股份有限公司 | Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method |
| CN108386160A (en) * | 2018-01-30 | 2018-08-10 | 中国石油天然气股份有限公司 | The deblocking type sand control pipe structure of screen casing under energy flushing pump |
| CN209040800U (en) * | 2018-07-23 | 2019-06-28 | 中交通力建设股份有限公司 | A kind of improved air bag stop grouting plug |
| CN109594962A (en) * | 2018-11-18 | 2019-04-09 | 东北石油大学 | Pressure break returns row's sand control component, big orifice sand control back-off packer and sand-preventing process |
| CN109723404A (en) * | 2019-03-04 | 2019-05-07 | 中国煤炭地质总局广东煤炭地质局勘查院 | Coal measure gas prospect pit naked eye device for plugging and method |
| CN210564457U (en) * | 2019-10-20 | 2020-05-19 | 达坦能源科技（上海）有限公司 | Open hole packer for ultra-deep well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108119094B (en) | Two-plugging one-injection one-row hole sealing device for deep coal seam gas extraction drilling and use method | |
| CN103696800B (en) | A kind of brill cuts pressure and takes out method | |
| CN205063929U (en) | Colliery is sealed in pit and is pressed integration segmentation hydraulic fracturing device | |
| CN104389554B (en) | Underground pressure control circulating switch valve | |
| CN111456681B (en) | Double-layer in-pipe blowout prevention valve | |
| CN205858333U (en) | A kind of three plug hydraulic fracturing detecting earth stress systems | |
| CN105452602B (en) | Sponge pressure equalization system | |
| CN109372572A (en) | A kind of efficient pumping method of low-permeability coal-bed gas | |
| CN109854202A (en) | A kind of two-tube squash type layering water-stop | |
| CN205605879U (en) | Water pressure test in borehole water pressure formula embolism drainage depressurization mechanism | |
| CN209724286U (en) | A kind of two-tube squash type layering water-stop | |
| CN202788741U (en) | Completion tool free of drilling and plugging | |
| US20200355031A1 (en) | Hydraulic accumulator-based controllable pressure injection device and method | |
| CN208900075U (en) | The efficient device for plugging of drilling fluid leakage | |
| CN110513072A (en) | A kind of ultradeep well open hole packer | |
| CN201196059Y (en) | Oil well cementing system | |
| CN106351602A (en) | Expanding type differential pressure opening type fine leakage finding and leakage checking packer | |
| CN103161438B (en) | Tubular column of perforation fracturing test system | |
| CN201723196U (en) | Self-sealing setting ball seat | |
| CN101280674B (en) | Oil well cementing system with inverse squeezing and pouring functions | |
| CN209277931U (en) | A kind of this coal bed gas extraction of underground coal mine drilling integrated apparatus | |
| CN206785383U (en) | A kind of duct fracturing device | |
| CN204827406U (en) | Gas well bores main shaft eye and multilateral well hole fracturing intercommunication tubular column with branch's well twice | |
| CN207583343U (en) | The safe blowout hookup of oil field well oil pipe Operating Pressure | |
| CN201196058Y (en) | Inverted-extrusion tie-back seal plug used for oil well cementing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 1807, 497 Zhengli Road, Yangpu District, Shanghai Applicant after: Shanghai datan Energy Technology Co.,Ltd. Address before: Room 1807, 497 Zhengli Road, Yangpu District, Shanghai Applicant before: TARTAN ENERGY TECH (SHANGHAI) LTD. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191129 |