CN109973015A - A kind of bilayer drill string deviation control with drilling straight well drilling tool power sub assembly - Google Patents
A kind of bilayer drill string deviation control with drilling straight well drilling tool power sub assembly Download PDFInfo
- Publication number
- CN109973015A CN109973015A CN201910326129.4A CN201910326129A CN109973015A CN 109973015 A CN109973015 A CN 109973015A CN 201910326129 A CN201910326129 A CN 201910326129A CN 109973015 A CN109973015 A CN 109973015A
- Authority
- CN
- China
- Prior art keywords
- drill string
- power transmission
- wall
- transmission cylinder
- iii
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
Abstract
The present invention relates to a kind of double-deck drill string deviation control with drilling straight well drilling tool power assemblies, for beating straight well (or straight well section) in drilling engineering.Its structure specifically includes that top connection, ontology, central tube, spring I, piston cylinder, piston, power transmission cylinder I, spring II, plug cock I, power transmission cylinder II, thrust bearing I (including 2 thrust washers, bearing rollers I), disc spring group, thrust bearing II (including thrust washer, thrust cushion block, bearing roller II), power transmission cylinder III, drill string joints, spring III, plug cock II from top to bottom.The present invention mainly passes through top connection and ontology mutually screws and generates extruding force to the related components of power transmission cylinder I and lower part, and transmitting downwards step by step, and then so that its internal drill string is pressurized to be connected to the double-deck drill string assembly of power sub assembly lower part and providing, the power of external drill string tension.The present invention does not reduce bit pressure, and structure is relatively easy.
Description
Technical field
The invention belongs to a kind of oil and gas drilling tool fields, and in particular to a kind of bilayer drill string deviation control with drilling straight well brill
Well tool's power pipe nipple assembly.
Background technique
With the continuous development of the exploration and development of oil and gas resource, such as stratigraphic structure that drilling well is encountered
The problems such as (such as high steeply inclined geological structure), formation hardness unevenness, drilling tool type and structure and drill assembly, cause in drilling well
In the process, institute's drilling straight-hole (or diameter segment) well track cannot achieve the desired purpose (completely vertical or full well hole deviation is 0 °).
In this way, " deviation control with drilling straight well " technology can reduce drilling cost to a certain extent, the wasting of resources is avoided.
Drilling cost caused by greatly to reduce because of hole deviation, anti-oblique and well straightening technology is an eternal research class
Topic.Traditional vertical drilling tool (such as packed hole assembly and pendulum assembly) is mainly using drilling tool lateral force as anti-oblique or drop angle
Power resources, to sacrifice bit pressure and drilling speed as cost, thus there are significant limitations.In addition, eccentric drilling device, off-axis drilling tool,
The vertical drilling tools such as flexible drill string, anti-pendulum assembly and steering drilling tool improve power auger though hole deviation can be controlled preferably
Speed, but not only structure is more complicated and still without enough abilities for resisting formation deflecting force for suchlike drill assembly.
The working principle of the existing vertical drilling tool of comprehensive analysis or be by sacrifice bit pressure and drilling speed it is anti-oblique to realize
Purpose or structure of downhole assembly are relatively complicated or because there are a large amount of electronic components, cannot bear high temperature and structure
It is relative complex, poor reliability.For relevant issues existing for existing vertical drilling tool, research and development structure is simple, does not sacrifice bit pressure
With drilling speed, comparatively reliable deviation control with drilling straight well drilling tool for pushing the development of drilling applications of far-reaching significance.
Summary of the invention
Present invention seek to address that sacrifice bit pressure and drilling speed, poor reliability, height cannot be born in existing vertical drilling tool
Temperature and complex structure and other problems, for oil/gas drilling field provide a kind of structure it is relatively easy, not to sacrifice bit pressure and drilling speed, can
The power of the deviation control with drilling straight well drilling tool of the mating double-deck drill string assembly relatively high by property terminates assembly, is mainly used in petroleum
With the deviation control with drilling straight well technology in gas drilling field.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of bilayer drill string deviation control with drilling straight well drilling tool is dynamic
Power pipe nipple assembly, including top connection, ontology, central tube, spring I, piston cylinder, piston, power transmission cylinder I, spring II, plug cock I, power transmission
Cylinder II, thrust bearing I (including 2 thrust washers, bearing rollers I), disc spring group, thrust bearing II (including thrust washer, only
Pushing pad block, bearing roller II), power transmission cylinder III, drill string joints, spring III, plug cock II.The drill string joints external wall of upper portion is under
Portion's inner wall is equipped with seal groove and slot is provided with O-ring seal, and through O-ring seal in slot in drill string joints and ontology
Sealing is realized in wall and miner diameter end outer wall contact position, then drill string joints upper end and ontology lower end are connected through a screw thread；The spring
III is set to inside drill string joints；The III bigger diameter end inner wall of power transmission cylinder is equipped with seal groove and slot is provided with O-ring seal, and
It is realized and is sealed in central tube and III bigger diameter end inner wall contact position of power transmission cylinder by O-ring seal in slot, then by power transmission cylinder III with big
Diameter end upward, miner diameter end pass through spring III inside, make its miner diameter end be packed into the small inner diameter hole in drill string joints lower part in；The center
Pipe lower part passes through and is inserted in inside III bigger diameter end of power transmission cylinder；The thrust bearing II, disc spring group, thrust bearing I, power transmission cylinder II, bullet
Spring II, piston, spring I and piston cylinder are successively successively placed on outside central tube according to the order and self end phase mutual connection
Touching；The power transmission cylinder I is placed on outside piston cylinder and lower end and II upper end face contact of power transmission cylinder；The top connection lower end inner wall is equipped with
Seal groove and slot are provided with O-ring seal, and the corresponding stepped hole of seal groove is placed on outside piston cylinder, and by O-shaped in slot
Sealing ring realizes sealing；Ontology upper end inner wall is equipped with seal groove and slot is provided with O-ring seal, and passes through sealing in slot
Sealing is realized in end inner wall and top connection outer wall contact position to circle on the body, and ontology upper end and top connection are connected with each other with screw thread.
The invention has the advantages that: it is total with a kind of double-deck drill string deviation control with drilling straight well drilling tool power sub of the present invention
It is connected to lower part of the present invention at the matching used double-deck drill string assembly, during top connection screws in ontology degree and continues to increase,
Top connection lower end surface continues to increase the extruding force of power transmission cylinder I, and is transmitted to the double-deck drill string assembly step by step, so that in the double-deck drill string
Portion's drill string is pressurized, external drill string tension so that external drill string be still under bit pressure effect tension state without
It is bent.
Further, the disc spring group both ends are equipped with thrust bearing.
Beneficial effect using above-mentioned further technical solution is: during top connection continuous precession, disc spring group with
And the components of its underpart are able to maintain relative static conditions, without and then rotating together.
Further, it is drilled with equally distributed oilhole on II outer wall of power transmission cylinder and lower end step surface, and upper end outer wall is set
There is equally distributed through slot.
Beneficial effect using above-mentioned further technical solution is: oil liquid in seal chamber can swimmingly enter central tube with
The thrust bearing Yu disc spring group corresponding region of II lower part of region and power transmission cylinder between power transmission cylinder II.
Further, central tube is penetrating the corresponding region inside power transmission cylinder II equipped with one section of protrusion and II inner wall of power transmission cylinder patch
It closes, and is equipped with equally distributed through slot in raised outer wall.
Beneficial effect using above-mentioned further technical solution is: the corresponding region that central tube penetrates inside power transmission cylinder II is set
There is one section of protrusion to be bonded with II inner wall of power transmission cylinder, so that central tube and power transmission cylinder II and ontology are coaxial, facilitates other zero
The installation of part；Raised outer wall is beneficial to oil liquid equipped with equally distributed through slot and swimmingly enters raised lower area.
Further, the upper and lower end face of thrust washer and thrust cushion block is all provided with equally distributed slot, is drilled in each slot
Axial cylindrical hole.
Beneficial effect using above-mentioned further technical solution is: in order to which the hydraulic oil injected by oil filler point can be smoothly
Corresponding region is flowed through, rolling element I, rolling element II are lubricated.
Detailed description of the invention
Fig. 1 is a kind of double-deck drill string deviation control with drilling straight well drilling tool power sub assembly structure chart of the present invention.
Fig. 2 is II schematic three dimensional views of power transmission cylinder of the present invention.
Fig. 3 is central tube schematic three dimensional views of the present invention.
Fig. 4 is thrust washer schematic three dimensional views of the present invention.
Fig. 5 is thrust cushion block schematic three dimensional views of the present invention.
In figure: 01. top connection；02. ontology；03 central tube；04 spring I；05. piston cylinder；06. piston；07. power transmission cylinder I；
08. spring II；09. plug cock I；10. power transmission cylinder II；11. thrust washer；12. rolling element I；13. disc spring group；14. rolling element II；
15. thrust cushion block；16. power transmission cylinder III；17. drill string joints；18. spring III；19. plug cock II.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of injection pressure formula bilayer drill string deviation control with drilling straight well drilling tool power sub assembly of the present invention, is connect from above
Head (01), ontology (02), central tube (03), spring I (04), piston cylinder (05), piston (06), power transmission cylinder I (07), spring II
(08), plug cock I (09), power transmission cylinder II (10), thrust washer (11), rolling element I (12), disc spring group (13), rolling element II (14),
Thrust cushion block (15), power transmission cylinder III (16), drill string joints (17), spring III (18), plug cock II (19) composition.The drill string joints
(17) external wall of upper portion and lower inner wall are equipped with seal groove and slot is provided with O-ring seal, and are existed by O-ring seal in slot
Drill string joints and ontology (02) inner wall and miner diameter end outer wall contact position, which are realized, to be sealed, then will be under drill string joints (17) upper end and ontology
End is connected through a screw thread；It is internal that the spring III (18) is set to drill string joints (17)；In power transmission cylinder III (16) bigger diameter end
Wall is equipped with seal groove and slot is provided with O-ring seal, and by O-ring seal in slot in central tube (03) and power transmission cylinder III
(16) bigger diameter end inner wall contact position realize sealing, then by power transmission cylinder III (16) with bigger diameter end upward, miner diameter end pass through spring III
Inside is packed into its miner diameter end in the small inner diameter hole in drill string joints (17) lower part；Central tube (03) lower part passes through and is inserted in power transmission
Inside III (16) bigger diameter end of cylinder；The thrust bearing II (including thrust cushion block (15), rolling element II (14), thrust washer
(11)), disc spring group (13), thrust bearing I (including 2 thrust washers (11), rolling elements I (12)), power transmission cylinder II (10), spring
It is external that II (08), piston (06), spring I (04) and piston cylinder (05) cylinder are successively successively placed on central tube (03) according to the order
And self end contacts with each other；The power transmission cylinder I (07) is placed on piston cylinder (05) external and lower end and II upper surface of power transmission cylinder
Contact；Top connection (01) lower end inner wall is equipped with seal groove and slot is provided with O-ring seal, the corresponding step of seal groove
It is external that hole is placed on piston cylinder (05), and realizes sealing by O-ring seal in slot；Ontology (02) the upper end inner wall is equipped with sealing
Ring recess and slot are provided with O-ring seal, and are connect by slot inner seal ring in ontology (02) upper end inner wall and top connection (01) outer wall
Synapsis realizes sealing, and ontology (02) upper end is connected with each other with top connection (01) with screw thread；The plug cock I (09) and plug cock (19) are logical
It crosses and is threadedly connected on ontology (02) in oil filler point.Space between ontology (02) and central tube (03) passes through ontology (02) upper end
Inner wall and top connection (01) outer wall contact position, top connection (01) lower end inner wall and piston cylinder (05) outer wall contact position, piston (06)
It is connect with central tube (03) outer wall and piston cylinder (05) inner wall contact position, power transmission cylinder III (16) bigger diameter end inner wall and central tube (03)
Synapsis, drill string joints (17) upper end outer wall and ontology (02) inner wall contact position and power transmission cylinder III (16) miner diameter end and drill string joints
(17) inner wall contact position corresponding position is equipped with O-ring seal, forms seal chamber.Oil liquid is injected into seal chamber by pouring orifice,
Corresponding components are moved smooth when generating to bottom offset, and plays and disc spring group and thrust bearing are lubricated
Effect.
As shown in Fig. 2, being drilled with equally distributed oilhole, seal chamber on power transmission cylinder II (10) outer wall and lower end step surface
Interior oil liquid can swimmingly enter the thrust in region and power transmission cylinder II (10) lower part between central tube (03) and power transmission cylinder II (10)
Bearing I (including 2 thrust washers (11), rolling elements I (12)), thrust bearing II (including thrust cushion block (15), rolling element II
(14), thrust washer (11)) and disc spring group (13) corresponding region.
As shown in figure 3, central tube (03) is penetrating the internal corresponding region of power transmission cylinder II (10) equipped with one section of protrusion and is passing
The fitting of power cylinder II (10) inner wall, and it is equipped with equally distributed through slot in raised outer wall, central tube (03) penetrates power transmission cylinder II (10)
Internal corresponding region is equipped with one section of protrusion and is bonded with power transmission cylinder II (10) inner wall, so that central tube (03) and power transmission cylinder II
(10) and ontology (02) coaxially, facilitate the installation of other components；Raised outer wall, which is equipped with equally distributed through slot, is beneficial to oil
Liquid swimmingly enters raised lower area.
As shown in Figure 4, Figure 5, the upper and lower end face of thrust washer (11) and thrust cushion block (15) is all provided with equally distributed slot,
It is drilled with axial cylindrical hole in each slot, in order to which the hydraulic oil injected by oil filler point can smoothly flow through corresponding region, to rolling
Kinetoplast I, rolling element II are lubricated.
In the description of the present invention, it is to be understood that, term " inside ", " top ", " lower part ", " bigger diameter end ", " path
End ", " upper end ", the instructions such as " lower end " orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " contact ", " fitting ", " connection ",
The terms such as " resisting ", " being placed on ", " screw-in ", " precession ", " being inserted in ", " penetrating " shall be understood in a broad sense, for example, it may be fixed connect
It connects, may be a detachable connection, or is integral；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The double-deck drill string deviation control with drilling straight well drilling tool power sub assembly a kind of to the present invention is described in detail above, this
Apply that a specific example illustrates the principle and implementation of the invention in text.The explanation of above example is only intended to
Help understands core of the invention thought；At the same time, for those skilled in the art is having according to the thought of the present invention
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention
Limitation.
Claims (4)
1. a kind of bilayer drill string deviation control with drilling straight well drilling tool power sub assembly, including top connection, ontology, central tube, spring I,
Piston cylinder, piston, power transmission cylinder I, spring II, plug cock I, power transmission cylinder II, thrust bearing I (including 2 thrust washers, bearing elements
Body I), disc spring group, thrust bearing II (including thrust washer, thrust cushion block, bearing roller II), power transmission cylinder III, drill string joints,
Spring III, plug cock II.
2. a kind of double-deck drill string deviation control with drilling straight well drilling tool power sub assembly according to claim 1, it is characterised in that: institute
It states drill string joints external wall of upper portion and lower inner wall is equipped with seal groove and slot is provided with O-ring seal, and by O-shaped close in slot
Seal realizes in drill string joints and inner body wall and miner diameter end outer wall contact position and seals, then by drill string joints upper end and ontology lower end
It is connected through a screw thread；The spring III is set to inside drill string joints；The III bigger diameter end inner wall of power transmission cylinder is equipped with seal groove
And slot is provided with O-ring seal, and is realized by O-ring seal in slot in central tube and III bigger diameter end inner wall contact position of power transmission cylinder
Sealing, then by power transmission cylinder III with bigger diameter end upward, miner diameter end pass through spring III inside, make its miner diameter end be packed into drill string joints under
In the small inner diameter hole in portion；The central tube lower part passes through and is inserted in inside III bigger diameter end of power transmission cylinder；The thrust bearing II, disc spring group,
Thrust bearing I, power transmission cylinder II, spring II, piston, spring I and piston cylinder are successively successively placed on outside central tube according to the order
Portion and self end contacts with each other；The power transmission cylinder I is placed on outside piston cylinder and lower end and II upper end face contact of power transmission cylinder；Institute
Top connection lower end inner wall is stated equipped with seal groove and slot is provided with O-ring seal, the corresponding stepped hole of seal groove is placed on piston
Cylinder is external, and realizes sealing by O-ring seal in slot；Ontology upper end inner wall be equipped with seal groove and slot be provided with it is O-shaped
Sealing ring, and hold inner wall and top connection outer wall contact position to realize on the body by slot inner seal ring and seal, ontology upper end with it is upper
Connector is connected with each other with screw thread.
3. a kind of according to claim 1,2 double-deck drill string deviation control with drilling straight well drilling tool power short circuit assembly, it is characterised in that:
The top connection is threadingly attached to ontology upper end, and there are a spacings between top connection upper stage terrace and ontology upper surface
From；With top connection screw in body interior degree continue to increase, top connection generated relative to ontology it is bigger to bottom offset, on
The extruding force that connector lower end surface generates power transmission cylinder I and its underpart components is bigger.
4. a kind of according to claim 1,2 double-deck drill string deviation control with drilling straight well drilling tool power short circuit assembly, ontology and center
Space between pipe is contacted by ontology upper end inner wall with top connection outer wall contact position, top connection lower end inner wall with piston drum outer wall
Place, piston and center pipe outer wall and piston cylinder inner wall contact position, III bigger diameter end inner wall of power transmission cylinder and central tube contact position, drill string
Upper end of joint outer wall and inner body wall contact position and III miner diameter end of power transmission cylinder and drill string joints inner wall contact position corresponding position are equipped with O
Type sealing ring forms seal chamber；Oil liquid is injected to seal chamber by pouring orifice, so that corresponding components movement is smooth, and to dish
Spring group and thrust bearing play lubricating action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326129.4A CN109973015B (en) | 2019-04-23 | 2019-04-23 | Power nipple assembly of double-layer drill string anti-deviation straight drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326129.4A CN109973015B (en) | 2019-04-23 | 2019-04-23 | Power nipple assembly of double-layer drill string anti-deviation straight drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973015A true CN109973015A (en) | 2019-07-05 |
| CN109973015B CN109973015B (en) | 2020-09-25 |
Family
ID=67085762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326129.4A Active CN109973015B (en) | 2019-04-23 | 2019-04-23 | Power nipple assembly of double-layer drill string anti-deviation straight drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973015B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242222A (en) * | 2019-07-18 | 2019-09-17 | 西南石油大学 | A kind of novel straight well anti-oblique drill bit under the device suitable for well dynamic |
| CN111894457A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Coiled tubing orientation tool |
| CN112065280A (en) * | 2020-09-29 | 2020-12-11 | 山西风雷钻具有限公司 | Vertical drilling tool |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518048A (en) * | 1983-04-18 | 1985-05-21 | Robert F. Varley Co., Inc. | Method for improved hydraulic jetting of drill bore holes using high pressure pulses of fluid |
| CN2284294Y (en) * | 1996-03-06 | 1998-06-17 | 张益友 | Level well propellor |
| CN2793299Y (en) * | 2005-01-31 | 2006-07-05 | 中国石油大学(北京) | Drawn driller |
| CN202178409U (en) * | 2011-08-31 | 2012-03-28 | 北京市电力公司 | Temporary ground wire clamp |
| WO2013034577A2 (en) * | 2011-09-05 | 2013-03-14 | Interwell As | Flow activated circulating valve |
| CN103730401A (en) * | 2013-12-24 | 2014-04-16 | 苏州市奥普斯等离子体科技有限公司 | Improved chip clamping device |
| CN103742076A (en) * | 2014-01-02 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Axial vibrator |
| WO2017004539A1 (en) * | 2015-07-02 | 2017-01-05 | Bitswave Inc. | Steerable earth boring assembly having flow tube with static seal |
| CN107542419A (en) * | 2017-09-26 | 2018-01-05 | 中国石油集团渤海钻探工程有限公司 | Through formula fluid power impulse oscillation instrument |
-
2019
- 2019-04-23 CN CN201910326129.4A patent/CN109973015B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518048A (en) * | 1983-04-18 | 1985-05-21 | Robert F. Varley Co., Inc. | Method for improved hydraulic jetting of drill bore holes using high pressure pulses of fluid |
| CN2284294Y (en) * | 1996-03-06 | 1998-06-17 | 张益友 | Level well propellor |
| CN2793299Y (en) * | 2005-01-31 | 2006-07-05 | 中国石油大学(北京) | Drawn driller |
| CN202178409U (en) * | 2011-08-31 | 2012-03-28 | 北京市电力公司 | Temporary ground wire clamp |
| WO2013034577A2 (en) * | 2011-09-05 | 2013-03-14 | Interwell As | Flow activated circulating valve |
| CN103730401A (en) * | 2013-12-24 | 2014-04-16 | 苏州市奥普斯等离子体科技有限公司 | Improved chip clamping device |
| CN103742076A (en) * | 2014-01-02 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Axial vibrator |
| WO2017004539A1 (en) * | 2015-07-02 | 2017-01-05 | Bitswave Inc. | Steerable earth boring assembly having flow tube with static seal |
| CN107542419A (en) * | 2017-09-26 | 2018-01-05 | 中国石油集团渤海钻探工程有限公司 | Through formula fluid power impulse oscillation instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242222A (en) * | 2019-07-18 | 2019-09-17 | 西南石油大学 | A kind of novel straight well anti-oblique drill bit under the device suitable for well dynamic |
| CN111894457A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Coiled tubing orientation tool |
| CN112065280A (en) * | 2020-09-29 | 2020-12-11 | 山西风雷钻具有限公司 | Vertical drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109973015B (en) | 2020-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109973015A (en) | A kind of bilayer drill string deviation control with drilling straight well drilling tool power sub assembly | |
| CN205918361U (en) | Perpendicular drilling tool of machinery | |
| CN202900044U (en) | Double stabilizer prebuckling dynamics pendulum drilling assembly | |
| CN201567994U (en) | Variable-diameter expansion cone for equal-diameter competed well | |
| CN110029936A (en) | A kind of injection pressure formula bilayer drill string deviation control with drilling straight well drilling tool | |
| CN101319604B (en) | Inverse squeezing tie-back sealing plug | |
| US2366547A (en) | Fitting for use with oil well tubing or the like | |
| CN103670323A (en) | Well completion device of thief formation | |
| CN208764526U (en) | A kind of coal mine high pressure rotary sealing connector | |
| CN204827415U (en) | Cable passes through well logging tubular column that connects and use this joint | |
| CN107091060A (en) | Multi-stage water power pressurizer based on mechanical device | |
| CN207795126U (en) | A kind of oil-pumping well head equipment | |
| CN200992985Y (en) | Dual-wall drilling downhole flow dividing valve | |
| CN103352878B (en) | A kind of with brill formation pressure testing instrument supercharging device | |
| CN102913159A (en) | Continuous circulation valve | |
| CN202392109U (en) | Two-stage seal structure for dynamic seal of underground dynamic drilling tool | |
| CN201053314Y (en) | Horizontal well flexible short section | |
| CN206267797U (en) | A kind of Novel down-hole instrument with vibration isolation defencive function | |
| CN202483513U (en) | Sliding sleeve for separate layer reconstruction | |
| CN207795160U (en) | Gas well induced flow switch valve | |
| CN201292791Y (en) | Under balance drilling gas injection connector | |
| CN202194603U (en) | Cobblestone coring drill | |
| CN114458155A (en) | Wellhead fixed type radial drilling well completion method | |
| CN201486524U (en) | Underground annulus pressure opening valve | |
| CN2654845Y (en) | Built in bag type leaking stoppage apparatus |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |