CN205714097U - Can multiple switching plugging while drilling valve - Google Patents
Can multiple switching plugging while drilling valve Download PDFInfo
- Publication number
- CN205714097U CN205714097U CN201620401849.4U CN201620401849U CN205714097U CN 205714097 U CN205714097 U CN 205714097U CN 201620401849 U CN201620401849 U CN 201620401849U CN 205714097 U CN205714097 U CN 205714097U
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- China
- Prior art keywords
- ball device
- plugging
- circulating sub
- drilling
- core pipe
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- 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.)
- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 230000004087 circulation Effects 0.000 claims description 47
- 210000002445 nipple Anatomy 0.000 claims description 10
- 210000000078 claw Anatomy 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 235000019282 butylated hydroxyanisole Nutrition 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052755 nonmetal Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Details Of Valves (AREA)
Abstract
This utility model provides one can multiple switching plugging while drilling valve, including adapter, circulating sub body, anti-rotation nozzle, ball seat, jump ring, spring, position-limiting tube with catch ball device body, described circulating sub body interior arrange last item set and and described last item set between formed and accommodate guideway and the space of core pipe, below described core pipe, guide wire is set, threaded with described circulating sub body in described ball device body upper end of catching, described in catch ball device body interior install catch ball device mandrel.Described in the utility model can multiple switching plugging while drilling valve, down-hole is entered with drilling tool, do not affect normal drilling operability, when running into drop ply and needing leak stopping, it is not necessary to drilling, its switch can be controlled on ground by the way of pitching and carry out plugging operations, blocking or the corrosion BHA such as power drilling tool, LWD or MWD can be prevented effectively from, thus it is substantially reduced risk and the difficulty of accident, save the accident treatment time, reduced drilling cost.
Description
Technical field
This utility model belongs to drilling technology field, and especially relating to one can multiple switching plugging while drilling
Valve.
Background technology
Along with the development of oil-gas exploration and development, the quantity of deep-well, Holes of Complicated Wells and special well rises year by year,
And circulation problems is a difficult problem the most thorny in its drilling process, often waste substantial amounts of manpower, financial resources
And the time, serious leakage can cause cave-in, bit freezing and gas blowout accident, even can make a bite well report
Useless, cause huge economic loss.Although it has been proposed that, apply many leakage stopping technologies and method, but
It is that drilling well circulation problems fails to reach effectively to solve so far.
The general processing method of leakage has a static leak stopping, particles bridge leak stopping, with high dehydration serosity leak stopping,
The most stifled method, inorganic gel material leak stopping method, compound leakage stopping technology, creeps into casing off technology etc. by force.
For bad ground Slot Handling, there is certain grinding in loss circulation material, leak stoppage tool and technique both at home and abroad
Study carefully and develop.Stratum, many set pressure system stratum, simultaneous happeness of loss circulation and blowout bottom especially big cave, crack, salt deposit
Stratum, low-pressure stratum, water layer, the leakage of adjustment well be a universally acknowledged difficult problem, be in drilling failure
Catastrophic failure.For these problems, on the basis of existing leakage stopping technology, develop the most again work
Tool leak stopping, various polymer-glue crosslinking agent slug and synthetic graphite powder leak stopping etc..
Utilize various downhole tool leak stopping, be possible not only to improve leak stopping success rate and leak stopping quality, moreover it is possible to contracting
Short time and minimizing manpower and materials consumption, especially in the case of the leakage that some are more complicated.With regard to leak stopping
For tool kind, summing up gets up to be divided into helps stifled instrument, implantation tool, isolating tool, means of delivery
With blend tool five class.In actual applications, select accordingly according to different blocking methods and technique
Leak stoppage tool.As for Datian leakage, development corrugated tube, expansion sleeve, straddle type envelope
Every device and mesh bag cement method etc., the closure efficiency improving Datian leakage is served positive role.
At present, leak stoppage tool has become a kind of important means tackling leakage, abroad attaches great importance to its research
And popularization and application.It is reported, the circulation leak stopping pipe nipple that national of the United States oil well company designs, it is possible to carry out
Unlimited number of carry out plugging while drilling operation, effectively protection BHA BHA.And the research and development of DSI company
Integral type, with boring bypass valve, is using turbine, when there is leakage during down-hole motor or coring,
Plugging operations can be carried out on the ground by the switch (most 6 times) of hydraulic control bypass valve.Should
Type bypass valve allows the use of various sealing agents, can effectively prevent leak stopping turbine, down-hole motor and coring
Cylinder, thus greatly reduce risk and the difficulty of accident treatment, save the accident treatment time, reduced
Drilling cost.
Although external leak stoppage tool is more advanced, but lease expenses is the highest.And China is at leak stoppage tool
Research aspect progress is slower.The Physical leak-proof leak-stopping technology of current domestic proposition, be utilized in drill bit and
Rotary jet device is installed between drill collar, the borehole wall of drop ply is formed one layer of mud cake hypotonic, firm, carries
The positive and negative bearing capacity of the high borehole wall, is primarily adapted for use in the leakage of hole and PLUGGING FRACTURE LOST CIRCULATION.Although this instrument
Leak-proof leak-stopping is had certain effect, but helicoid hydraulic motor, directional tool etc. bottom drilling tool, cannot be connect
High-accuracy instrument.Domestic existing integral type plugging while drilling circulation control valve, structure is relative complex, processing
Difficulty, costly, and after carrying out repeatedly blocking construction, the area of passage catching ball device lower end is substantially reduced,
It is unfavorable for normally creeping into.
Summary of the invention
In view of this, this utility model be directed to one can multiple switching plugging while drilling valve, existing to solve
There is leaking stoppage valve structure complicated, processing difficulties, the problem of Reusability inefficiency.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
One can multiple switching plugging while drilling valve, including circulating sub and catch ball device pipe nipple, described circulation is short
Joint includes adapter, circulating sub body, last item set, core pipe, guideway, anti-rotation nozzle, ball
Seat, jump ring, guide wire, spring and position-limiting tube, described in catch ball device pipe nipple and include catching ball device body and catch ball
Device mandrel, described adapter, described circulating sub body and the described center catching ball device body are logical
Hole, threaded with described adapter in described circulating sub body one end, in described circulating sub body
Between a circulation port along the circumferential direction is set, described circulating sub body interior arrange described last item set and
And being formed between described last item set and accommodate described guideway and the space of described core pipe, described core pipe box fills
Outside at described last item set, described core pipe upper end arranges guiding block, arranges circumferentially side in the middle part of described core pipe
To No. three circulation ports, the described ball that is connected with described core inside pipe wall is set below described No. three circulation ports
Seat, connects described position-limiting tube below described ball seat, threaded structure below described core pipe with described guide wire
Become circulation short circuit mandrel, between described guide wire and described circulating sub body, form cavity structure, described
Circulating sub body forms step in cavity bottom, and described step is fixing with the bottom of described spring to be connected,
Described spring top is fixed on described core pipe lower surface, the outer wall of described core pipe and described guideway set
Connecing rear intermediate formation gathering sill, described gathering sill is positioned at below described guiding block, below described guideway
Arranging No. two circulation ports along the circumferential direction, described No. two circulation ports align with a described circulation port and use
Described anti-rotation nozzle and described jump ring are fixing to be connected, described in catch ball device body upper end and described circulating sub this
Body is threaded, lower end be used for jointed rod, described in catch ball device body interior install described in catch ball device mandrel,
Described catching arranges opening bottom ball device mandrel.
Further, dust cap is installed outside described anti-rotation nozzle.
Further, described last item set lower end arranges elastic claw structure, described core pipe intermediate inner wall arrange with
The interior pawl groove that described elastic claw coordinates.
Further, a described circulation port is through hole, the position of a described circulation port and quantity and institute
State No. two circulation port one_to_one corresponding.
Further, described in catch ball device mandrel and include body, described body arranges some rectangular flow openings.
Further, described circulating sub body and described guideway are by black box radial seal.
Further, described core pipe and described ball seat are by black box radial seal.
Further, described circulating sub body and described guide wire are by black box radial seal.
Further, described guide wire arranges multiple steam vent.
Further, catching the opening arranged bottom ball device mandrel described in is circle.
Relative to prior art, described in the utility model can have following excellent by multiple switching plugging while drilling valve
Gesture:
(1) described in the utility model can multiple switching plugging while drilling valve, enter down-hole with drilling tool,
Do not affect normal drilling operability, when running into drop ply and needing leak stopping, it is not necessary to drilling, can be on ground
By the way of pitching, control its switch carry out plugging operations, blocking or corrosion power drill can be prevented effectively from
The BHAs such as tool, LWD or MWD, thus it is substantially reduced risk and the difficulty of accident, joint
About accident treatment time, reduce drilling cost.
(2) described in the utility model can multiple switching plugging while drilling valve, guideway and circulating sub
By installing anti-rotation nozzle in opening between body, effectively prevent guideway generation axial and circumferential
Motion, anti-rotation nozzle is provided with dust cap, prevents from storing and in transportation, and foreign material enter circulation
Hole.
(3) described in the utility model can multiple switching plugging while drilling valve, use Split type structure design,
It is more readily processed, transports, can suitably increase the length catching ball device pipe nipple, improve the secondary of blocking construction operation
Number.
(4) described in the utility model can multiple switching plugging while drilling valve, last item set lower end use elasticity
Pawl structure designs, and with this internal pawl slot fit of circulating sub, effectively increasing can multiple switching plugging while drilling valve
Open pressure.
(5) described in the utility model can multiple switching plugging while drilling valve, guide wire tube wall has many
Group small de-air hole, prevents from being formed dead during descending between guide wire and body at circulating sub mandrel
Chamber.
(6) described in the utility model can multiple switching plugging while drilling valve, can suitably increase that to catch ball device short
The length of joint, improves the number of times of blocking construction operation.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is can multiple switching plugging while drilling valve circulating sub structure show described in this utility model embodiment
It is intended to；
Fig. 2 is can to catch ball device pipe nipple structure by multiple switching plugging while drilling valve described in this utility model embodiment
Schematic diagram.
Description of reference numerals:
1-adapter；2-circulating sub body；Number circulation port of 201-；3-last item set；301-is elastic
Pawl；4-core pipe；401-guiding block；No. tri-circulation ports of 402-；Pawl groove in 403-；5-guideway；501-
No. two circulation ports；502-gathering sill；6-anti-rotation nozzle；7-ball seat；8-jump ring；9-guide wire；901-
Steam vent；10-spring；11-dust cap；12-position-limiting tube；13-catches ball device body；14-catches ball device core
Axle.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", " on ", D score, "front", "rear", "left", "right", " vertically ", " water
Flat ", the orientation that indicates of " top ", " end ", " interior ", " outward " etc. or position relationship be based on attached
Orientation shown in figure or position relationship, be for only for ease of description this utility model and simplify description, and not
Be instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second "
Etc. being only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indication
The quantity of the technical characteristic shown.Thus, the feature defining " first ", " second " etc. can be expressed
Or implicitly include one or more this feature.In description of the present utility model, unless otherwise
Illustrating, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing,
Can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
Logical.For the ordinary skill in the art, can understand that above-mentioned term is at this by concrete condition
Concrete meaning in utility model.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
One can multiple switching plugging while drilling valve, as depicted in figs. 1 and 2, including circulating sub and catch ball
Device pipe nipple, described circulating sub include adapter 1, circulating sub body 2, last item set 3, core pipe 4,
Guideway 5, anti-rotation nozzle 6, ball seat 7, jump ring 8, guide wire 9, spring 10 and position-limiting tube 12,
Described ball device pipe nipple of catching includes catching ball device body 13 and catching ball device mandrel 14, described adapter 1, institute
Stating circulating sub body 2 and the described center catching ball device body 17 is through hole, described circulating sub is originally
Threadeding with described adapter 1 in body 2 one end, arranges circumferentially in the middle of described circulating sub body 2
A number circulation port 201 in direction, described circulating sub body 2 is internal arrange described last item set 3 and with institute
State to be formed between last item set 3 and accommodate described guideway 5 and the space of described core pipe 4, described core pipe 4
Being sleeved on described last item set 3 outside, described core pipe 4 upper end arranges guiding block 401, in described core pipe 4
Portion arranges No. three circulation ports 402 along the circumferential direction, arranges with described below described No. three circulation ports 402
The described ball seat 7 that core pipe 4 inwall connects, connects described position-limiting tube 12, described core below described ball seat 7
Composition of threadeding with described guide wire 9 below pipe 4 circulates short circuit mandrel, and described guide wire 9 is with described
Forming cavity structure between circulating sub body 2, described circulating sub body 2 forms platform in cavity bottom
Rank, described step is fixing with the bottom of described spring 10 to be connected, and described spring 10 top is fixed on described
On core pipe 4 lower surface, after the outer wall of described core pipe 4 is socketed with described guideway 5, intermediate formation is led
To groove 502, described gathering sill 502 is positioned at below described guiding block 401, below described guideway 5
No. two circulation ports 501 along the circumferential direction, described No. two circulation ports 501 and a described circulation port are set
201 align and use described anti-rotation nozzle 6 and described jump ring 8 is fixing connects, described in catch ball device body 13
Threaded with described circulating sub body 2 in upper end, lower end be used for jointed rod, described in catch ball device body
13 internally installed described in catch ball device mandrel 14, described in catch bottom ball device mandrel 14, opening be set.
Dust cap 11 is installed outside described anti-rotation nozzle 6.
Described last item overlaps 3 lower ends and arranges elastic claw 301 structure, and described core pipe 4 intermediate inner wall is arranged and institute
State the interior pawl groove 403 that elastic claw 301 coordinates.
A described circulation port 201 is through hole, and the position of a described circulation port 201 and quantity are with described
No. two circulation port 501 one_to_one corresponding.
Described ball device mandrel 14 of catching includes body, and described body arranges some rectangular flow openings.
Described circulating sub body 2 and described guideway 5 are by black box radial seal, described core
Pipe 4 and described ball seat 7 are by black box radial seal, described circulating sub body 2 and described guiding
Pipe 9 is by black box radial seal.
Described guide wire 9 arranges multiple steam vent 901, described in catch bottom ball device mandrel 14 arrange circulation
Hole is circular.
A kind of can the operation principle of multiple switching plugging while drilling valve be:
According to the requirement of plugging while drilling detail design, install in BHA upper end can multiple switching with
Bore leaking stoppage valve and once find drop ply, when needing to carry out blocking construction operation, first put into a large-size
Nonmetal ball, control discharge capacity, pump nonmetal ball and enter ball seat 7.When ball enters ball seat 7 smoothly, can
Observe that standpipe pressure rises, now increase discharge capacity and fully open displacement value to instrument, so that circulating short
No. three circulation ports 402 connecing mandrel connect with No. two circulation ports 501, reach bypass state.The most just may be used
To carry out blocking construction operation, after construction operation terminates, then put into, from well head, the steel ball that 2 sizes are identical,
After steel ball arrival instrument, blocking No. three circulation ports 402, pump pressure increases, under a certain pressure, nonmetal
Ball cuts across ball seat 7, falls in the cavity caught above ball device body 17, also falls into latter two steel ball
In cavity, circulation short circuit mandrel returns to initial position under the effect of spring 10 restoring force, No. three circulations
Staggering with No. two circulation ports 501 in hole 402, instrument is closed.Through repeatedly construction operation,
Instrument can be tripped out, lay down and catch ball device pipe nipple, take out and catch the nonmetal ball in ball device mandrel 18 and steel ball.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made
Deng, within should be included in protection domain of the present utility model.
Claims (10)
1. can multiple switching plugging while drilling valve, it is characterised in that: include circulating sub and catch ball device pipe nipple,
Described circulating sub includes adapter (1), circulating sub body (2), last item set (3), core
Pipe (4), guideway (5), anti-rotation nozzle (6), ball seat (7), jump ring (8), guiding
Pipe (9), spring (10) and position-limiting tube (12), described in catch ball device pipe nipple and include catching ball device body (13)
With catch ball device mandrel (14),
Described adapter (1), described circulating sub body (2) and described catch ball device body (17)
Center be through hole, described circulating sub body (2) one end is with described adapter (1) screw thread even
Connect, a circulation port (201) along the circumferential direction be set in the middle of described circulating sub body (2),
Described circulating sub body (2) is internal arrange described last item set (3) and with described last item set (3)
Between formed and accommodate described guideway (5) and the space of described core pipe (4), described core pipe (4)
Being sleeved on described last item set (3) outside, described core pipe (4) upper end arranges guiding block (401), institute
State core pipe (4) middle part and No. three circulation ports (402) along the circumferential direction, described No. three circulation ports (402) are set
Lower section arranges the described ball seat (7) being connected with described core pipe (4) inwall, described ball seat (7) lower section
Connecting described position-limiting tube (12), structure is threadeded in described core pipe (4) lower section with described guide wire (9)
Become circulation short circuit mandrel, between described guide wire (9) and described circulating sub body (2), form cavity
Structure, described circulating sub body (2) forms step, described step and described spring in cavity bottom
(10) bottom is fixing to be connected, and described spring (10) top is fixed on described core pipe (4) lower surface
On, intermediate formation gathering sill (502) after the outer wall of described core pipe (4) and described guideway (5) socket,
Described gathering sill (502) is positioned at described guiding block (401) lower section, described guideway (5) lower section
No. two circulation ports (501) along the circumferential direction, described No. two circulation ports (501) and described No. one are set
Circulation port (201) aligns and connects with described anti-rotation nozzle (6) and described jump ring (8) are fixing,
Threaded with described circulating sub body (2) in described ball device body (13) upper end of catching, lower end
For jointed rod, described in catch ball device body (13) internally installed described in catch ball device mandrel (14), institute
State to catch and bottom ball device mandrel (14), opening is set.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Dust cap (11) is installed in anti-rotation nozzle (6) outside.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Last item set (3) lower end arranges elastic claw (301) structure, described core pipe (4) intermediate inner wall arrange with
The interior pawl groove (403) that described elastic claw (301) coordinates.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
A number circulation port (201) is through hole, the position of a described circulation port (201) and quantity and described two
Number circulation port (501) one_to_one corresponding.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Catch ball device mandrel (14) and include body, described body arranges some rectangular flow openings.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Circulating sub body (2) and described guideway (5) are by black box radial seal.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Core pipe (4) and described ball seat (7) are by black box radial seal.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Circulating sub body (2) and described guide wire (9) are by black box radial seal.
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
Guide wire (9) arranges multiple steam vent (901).
The most according to claim 1 can multiple switching plugging while drilling valve, it is characterised in that: described
The opening catching the setting of ball device mandrel (14) bottom is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620401849.4U CN205714097U (en) | 2016-05-05 | 2016-05-05 | Can multiple switching plugging while drilling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620401849.4U CN205714097U (en) | 2016-05-05 | 2016-05-05 | Can multiple switching plugging while drilling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714097U true CN205714097U (en) | 2016-11-23 |
Family
ID=57303071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620401849.4U Expired - Fee Related CN205714097U (en) | 2016-05-05 | 2016-05-05 | Can multiple switching plugging while drilling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714097U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948780A (en) * | 2017-03-15 | 2017-07-14 | 西南石油大学 | A kind of screw drilling tool motor operting differential pressure control valve and its control method |
| CN107227942A (en) * | 2017-07-12 | 2017-10-03 | 中国石油集团西部钻探工程有限公司 | Plugging while drilling short-circuit device |
| CN112177566A (en) * | 2020-11-13 | 2021-01-05 | 大庆石油管理局有限公司 | Leak stoppage tool while drilling |
| CN112324389A (en) * | 2020-12-08 | 2021-02-05 | 中国石油天然气集团有限公司 | While-drilling bypass injection tool |
| CN115354988A (en) * | 2022-10-21 | 2022-11-18 | 中石化西南石油工程有限公司 | Multi-time switch quick leaking stoppage valve |
| CN115434660A (en) * | 2021-06-03 | 2022-12-06 | 中国石油化工股份有限公司 | Rotary jet plugging device for oil well |
| CN115822466A (en) * | 2022-05-17 | 2023-03-21 | 百勤能源科技（惠州）有限公司 | Compound seal circulation short circuit |
| CN116025307A (en) * | 2021-10-27 | 2023-04-28 | 中国石油天然气集团有限公司 | Underground ball catcher |
-
2016
- 2016-05-05 CN CN201620401849.4U patent/CN205714097U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948780A (en) * | 2017-03-15 | 2017-07-14 | 西南石油大学 | A kind of screw drilling tool motor operting differential pressure control valve and its control method |
| CN106948780B (en) * | 2017-03-15 | 2019-08-02 | 西南石油大学 | A kind of screw drilling tool motor operting differential pressure control valve and its control method |
| CN107227942A (en) * | 2017-07-12 | 2017-10-03 | 中国石油集团西部钻探工程有限公司 | Plugging while drilling short-circuit device |
| CN112177566A (en) * | 2020-11-13 | 2021-01-05 | 大庆石油管理局有限公司 | Leak stoppage tool while drilling |
| CN112324389A (en) * | 2020-12-08 | 2021-02-05 | 中国石油天然气集团有限公司 | While-drilling bypass injection tool |
| CN115434660A (en) * | 2021-06-03 | 2022-12-06 | 中国石油化工股份有限公司 | Rotary jet plugging device for oil well |
| CN116025307A (en) * | 2021-10-27 | 2023-04-28 | 中国石油天然气集团有限公司 | Underground ball catcher |
| CN115822466A (en) * | 2022-05-17 | 2023-03-21 | 百勤能源科技（惠州）有限公司 | Compound seal circulation short circuit |
| CN115822466B (en) * | 2022-05-17 | 2023-12-26 | 百勤能源科技（惠州）有限公司 | Composite sealing circulation short circuit |
| CN115354988A (en) * | 2022-10-21 | 2022-11-18 | 中石化西南石油工程有限公司 | Multi-time switch quick leaking stoppage valve |
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Effective date of registration: 20211026 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: No.106 Huanghai Road, Binhai New Economic and Technological Development Zone, Tianjin 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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Granted publication date: 20161123 |