CN105298439B - A kind of top drive cementing head - Google Patents
A kind of top drive cementing head Download PDFInfo
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- CN105298439B CN105298439B CN201510697483.XA CN201510697483A CN105298439B CN 105298439 B CN105298439 B CN 105298439B CN 201510697483 A CN201510697483 A CN 201510697483A CN 105298439 B CN105298439 B CN 105298439B
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Abstract
The invention discloses a kind of top drive cementing head, passes sequentially through connection component sealed connection including sequentially connected rotation assembly, at least one top cement plug release assembly, indicator assembly, each assembly from top to bottom；The structure of rotation assembly is, including is provided with the top connection of central through hole, and top connection waist periphery is set with cylinder, is diametrically symmetrically provided with two inlets in top connection waist, the outer end of two inlets is fixedly connected by an injection head with cylinder respectively；Cylinder inboard wall is provided with upper bearing (metal), lower bearing with top connection waist periphery；Upper bearing (metal) and lower bearing inner ring are sleeved on top connection periphery；The upper and lower port of cylinder is separately installed with upper end cover and bottom end cover；The lower port of top connection is connected with current divider suit.The device of the invention, simple in structure, reliable operation are adaptable.
Description
Technical field
The invention belongs to petroleum machinery equipment technical field, for oil gas well cementing operation operation, and in particular to drive at a kind of top
Dynamic cementing head.
Background technology
At present at sea fixed, semi-submersible type and floating type drilling platforms are mainly used in oil and gas development.And existing cement
Head is with rotary space is big, tensile strength is low, bearing torque ability is weak, can only launch single kind rubber plug (drilling rod rubber plug or casing glue
Plug etc.), setting ball can not be thrown, operation process needs the inferior positions such as termination of pumping, exploitation of offshore oil and gas needs can not be adapted to, to land deep-well
Ultradeep well demand can not also be fully met.Cementing the well at the same time, pressure is higher and higher, and conventional cementing needs operator's closely operation, not only
Operations involving high pressure risk is born, and bears high-altitude junk strike risk, and has falling from high altitude risk in operation process.
The content of the invention
It is an object of the invention to provide a kind of top drive cementing head, it is more to solve cementing head specification of the prior art, fits
It is not strong with property, the problem of integration capability is low.
The technical solution adopted by the present invention is a kind of top drive cementing head, from top to bottom including sequentially connected rotation
Assembly, at least one top cement plug release assembly, indicator assembly, each assembly pass sequentially through connection component sealed connection,
The structure of the rotation assembly is, including is provided with the top connection of central through hole, and top connection waist periphery is set with
Cylinder, is diametrically symmetrically provided with two inlets, the outer end of two inlets is respectively to being connected to injection in top connection waist
Head A and injection head B, injection head A and injection head B are fixedly connected with cylinder respectively；Between cylinder inboard wall and top connection waist periphery
Upper bearing (metal), retainer nut A, sealing ring B, sealing ring A, retainer nut B, lower bearing are disposed with from top to bottom；Upper bearing (metal) and
Lower bearing inner ring is sleeved on top connection periphery；The upper and lower port of cylinder is separately installed with upper end cover and bottom end cover；Top connection
Lower port is connected with current divider suit.
The top drive cementing head of the present invention, is further characterized in that：
The structure of top cement plug release assembly is, including main body A, and main body A is a revolving body for being provided with centre bore and eccentric orfice,
Radially installed has a rotary valve A in the middle part of main body A, and the both ends sealing surface of rotary valve A is separately installed with sealing ring B, sealing ring A, close
The outer end of seal ring B is provided with plug A, and plug A is fixed in main body A, and the plug side of rotary valve A is provided with crossover sub A.
The structure of indicator assembly is, including lower contact, and lower contact is cylindrical to be provided with mounting groove, and the mounting groove lower part is radially logical
Pitching plug is provided with hole, pitching plug is fixed in lower contact, and mounting groove top is provided with indicator.
The structure of connection component is the top connection lower port and the main body A upper port of top cement plug release assembly of rotation assembly
By six connecting key A connections, six connecting key A internal circular surfaces and top connection and main body A it is cylindrical it is supporting engage, six connecting keys
Clip A and clip B is set with outside A jointly.
When main body A is docked with top connection, the end face B of main body A is bonded with the end face A of top connection, the seal groove of main body A with it is upper
The sealing surface of connector coordinates socket, and the groove surface B of main body A aligns in the axial direction with the groove surface A of top connection.
The lower end of top connection is provided with multiple annular grooves, and connecting key A inner surfaces are provided with multiple convex annulars from top to bottom
Platform, on the upper and lower end face of connecting key A axial directions, is respectively arranged with a boss face A and boss face B.
The inner surface of clip A is provided with circular cone C, and six through hole A have been uniformly distributed circumferentially in clip A one end,
Crossover position is respectively arranged with circular cone A and conical surface B, circular cone A or circular cone B and ring up and down for connecting key A outer surfaces
Shape conical surface C mating surfaces each other；
Alternatively, there is one section of circular cone E on the inner surface of clip G, the radial direction in lower end extends a boss, convex
The conical surface A or conical surface B that six through hole B, conical surface E and connecting key A are distributed along the circumference with platform coordinate.
The invention has the advantages that drive the present invention to rotate using top-drive device or casing running tool etc., warp
Indicator assembly transfers load to tubing string；Moment of torsion is transmitted by key connection, the ring-shaped groove of the inner surface of key transmits tension and compression and carries
Lotus, centre bore coordinate rotary valve formation inner flow passage to combine with eccentric orfice；Remote operation is carried out using wireless signal transmission techniques
Control, power needed for control system are provided by fixing the portable accumulator over/under on rubber plug release assembly.Operation process is only
The present invention need to be connected with top-drive device and lower part tubing string and can be used, avoid climb wiring and operational risk.Can root
According to actual needs, increase and decrease and assembly quantity is discharged to up/down rubber plug.Remote controlled rubber plug release, can also launch setting ball by hand
Deng.In addition, high torque, hook load can be born, only need a kind of specification to meet most job requirements, driven with ordinary turntable
Dynamic rotary cement head is compared, and has that bearing torque ability is high, hook carry it is big, operation process not only rotatable tubing string and also can on put and put pipe
Column.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of apparatus of the present invention；
Fig. 2 is the half sectional view of apparatus of the present invention；
Fig. 3 is the partial exploded view of apparatus of the present invention quick access device；
Fig. 4 is the partial schematic diagram of the female end connector of apparatus of the present invention quick access device；
Fig. 5 is the partial schematic diagram of the male end connector of apparatus of the present invention quick access device；
Fig. 6 is the connecting key of apparatus of the present invention quick access device；
Fig. 7 is the clip of apparatus of the present invention quick access device；
Fig. 8 is apparatus of the present invention quick access device part semi-cutaway；
Fig. 9 is second of clip semi-cutaway of apparatus of the present invention quick access device；
Figure 10 is the partial assembled semi-cutaway of apparatus of the present invention quick access device；
Figure 11 is that apparatus of the present invention reduce the schematic diagram that module pre-installs a rubber plug；
Figure 12 is that apparatus of the present invention increase the schematic diagram that module pre-installs three rubber plugs.
In figure, 10. rotation assembly, 20. top cement plugs release assembly, 30. bottom plugs release assembly, 40. indicator assemblies,
50. rubber plug A, 60. rubber plug B, 70. rubber plug C, 80. rubber plug D；
11. arrow A, 22. arrow B, 33. arrow C, 44. arrow D, 55. arrow E；
101. top connection, 102. upper end covers, 103. locking nuts, 104. upper bearing (metal)s, 105. retainer nut A, 106. injections
Head A, 107. cylinders, 108. lower bearings, 109. diversion sleeves, 110. bottom end covers, 111. retainer nut B, 112. sealing ring A, 113.
Injection head B, 114. sealing ring B, 115. sealing surfaces, 116. end face A, 117. annular groove A, 118. keyway face A, 119. threaded hole A；
201. main body As, 202. rotary valve A, 203. sealing ring A, 204. plug A, 205. crossover sub A, 206. sealing rings
B, 207. seal grooves, 208. end face B, 209. annular groove B, 210. keyway face B, 211. threaded hole B；
301. main body B, 302. rotary valve B, 303. sealing ring C, 304. live plugs, 305. plug B, 306. crossover sub B,
307. sealing ring D；
401. indicators, 402. pitching plugs, 403. lower contacts；
501. clip A, 502. connecting key A, 503. clip B, 504. annular convex platform, 505. boss face A, 506. boss face B,
507. conical surface A, 508. conical surface B, 509. conical surface C, 510. through hole A, 511. conical surface E, 512. through hole B, 513. clip G；
601. clip C, 602. connecting key B, 603. clip D；
701. clip E, 702. connecting key C, 703. clip F.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
With reference to Fig. 1, the overall structure of apparatus of the present invention is, from top to bottom including sequentially connected rotation assembly 10, gluing
Plug release assembly 20, bottom plug release assembly 30, indicator assembly 40, each assembly pass sequentially through connection component and carry out sealing company
Connect；In addition, further including cylinder and accumulator (not shown in Fig. 1), cylinder is used to rotate the rotation in top cement plug release assembly 20
Rotary valve B302 in valve A202 and bottom plug release assembly 30, accumulator are used to provide power (gases at high pressure) to cylinder.
With reference to Fig. 2, the structure of rotation assembly 10 is, including is provided with the top connection 101 of central through hole, is made with top connection 101
For revolving body main shaft, 101 waist periphery of top connection is set with cylinder 107, is diametrically symmetrically provided with 101 waist of top connection
Two inlets (being known as inlet A and inlet B), the outer end of two inlets is respectively to being connected to injection head A106 and injection head
B113, injection head A106 and injection head B113 are fixedly connected with cylinder 107 by bolt respectively and (do not show bolt in figure)；Cylinder
107 inner walls and top connection are disposed with upper bearing (metal) 104, retainer nut A105, sealing ring from top to bottom between 101 waist periphery
B114, sealing ring A112, retainer nut B111, lower bearing 108, retainer nut A105 therein, sealing ring B114, sealing ring
A112, retainer nut B111 are collectively referred to as seal assembly；Upper bearing (metal) 104 and 108 inner ring of lower bearing are sleeved on outside top connection 101
In week, be locked in top connection 101 by a locking nut 103 respectively；The upper and lower port of cylinder 107 is installed respectively by bolt
There are upper end cover 102 and bottom end cover 110；The lower port of top connection 101 is connected with the suit of current divider 109.
The structure of top cement plug release assembly 20 is, including main body A 201, main body A 201 are provided with centre bore and eccentric orfice for one
Revolving body, have rotary valve A202 in 201 middle part radially installed of main body A, the both ends sealing surface of rotary valve A202 is (see in Fig. 2
Left side, right side) it is separately installed with sealing ring B206, sealing ring A203 (three is collectively referred to as top cement plug rotation valve assembly), sealing
The outer end of ring B206 is provided with plug A 204, and plug A 204 is threadedly secured in main body A 201, makes sealing ring B206 quilts
Compress, 204 side of plug of rotary valve A202 is provided with crossover sub A205, and crossover sub A205 is for connecting with outer inside casing
(cylinder for not showing outside in figure) connect.
The structure of bottom plug release assembly 30 is, consistent with the structure of top cement plug release assembly 20, including main body B301, main
Body B301 is also a revolving body for being provided with centre bore and eccentric orfice, and radially installed has rotary valve B302 in the middle part of main body B301,
The both ends sealing surface of rotary valve B302 is separately installed with sealing ring D307, sealing ring C303 (three (see the left side in Fig. 2, right side)
Person is collectively referred to as bottom plug rotation valve assembly), the outer end of sealing ring D307 is provided with plug B305, and plug B305 is consolidated by screw thread
It is scheduled in main body B301, is compacted sealing ring D307, the plug B305 sides of rotary valve B302 are provided with crossover sub B306,
Crossover sub B306 is (not the showing outer inside casing in figure) for being connected with outer inside casing；The also parallel center in main body B301
Hole is provided with eccentric orfice, and eccentric orfice lower part is provided with plug 304 living, and plug 304 living is used for blocking one section of eccentric orfice of main body B301,
Make the eccentric orfice processability of main body B301 more preferable.Filled after bottom plug rotation valve assembly loads main body B301, then by plug 304 living
Enter main body B301, finally complete the assembling of miscellaneous part.
The structure of indicator assembly 40 is, including lower contact 403, and lower contact 403 is cylindrical to be provided with mounting groove, under the mounting groove
Pitching plug 402 is provided with portion's radial hole, pitching plug 402, which is connected through a screw thread, to be fixed in lower contact 403, mounting groove
Top is provided with indicator 401.The major function of indicator 401 be exactly rubber plug by when, pass through machinery instruction or sound, light
Signal designation, allows operator to know that rubber plug has passed through runner.The principle of indicator 401 is that a similar valve is set in runner
The plectrum of valve, the plectrum can be rotated by 90 °, and rubber plug promotes plectrum to rotate 90 ° when passing through runner, has one outside lower contact 403
A plectrum synchronous with inner flow passage plectrum, internal rotational action is delivered to exterior next.Other sound, optical signal also must
There must be such mechanism to complete signal conversion.
With reference to Fig. 2, Fig. 3, the structure of connection component is that 101 lower port of top connection and the top cement plug of rotation assembly 10 discharge
201 upper port of main body A of assembly 20 passes through six connecting key A502 connections, six connecting key A502 internal circular surfaces and top connection
Clip A501 and clip B503, clip are set with jointly outside 101 and the cylindrical supporting engagement of main body A 201, six connecting key A502
A501 and clip B503 is fixed with top connection 101, main body A 201 respectively by holding screw respectively.Same structural principle, on
Rubber plug discharges corresponding by six connecting key B602, clip C601 and clip D603 between assembly 20 and bottom plug release assembly 30
Connection；It is also to pass through six connecting key C702, clip E701 and clip F703 that bottom plug, which discharges assembly 30 and indicator assembly 40,
Corresponding connection.
With reference to Fig. 4, Fig. 5, when main body A 201 is docked with top connection 101, end face B208 and the top connection 101 of main body A 201
End face A116 is bonded, and the seal groove 207 of main body A 201 coordinates socket (not show sealing in figure with the sealing surface 115 of top connection 101
Circle), a threaded hole B211 is provided between the adjacent grooves face B210 of main body A 201, and the groove surface B210 of main body A 201 is with above connecing
First 101 groove surface A118 aligns in the axial direction, is easily installed corresponding connecting key.
The lower end of top connection 101 is provided with multiple annular grooves, and (embodiment is 4 annular grooves, it is illustrated that annular groove
Quantity and cross sectional shape are only a kind of displaying), it can also be arranged as required to the groove and section form of other quantity；It is recessed in annular
The axial direction of groove is radially even to be distributed with six square grooves, and a screw thread is distributed along the circumference among each square groove
Hole A119, for installing holding screw.In each main body with lower end of the matched structures of connecting key A502 with top connection 101
Structure is the same.
Such as Fig. 6, connecting key A502 inner surfaces are provided with multiple annular convex platform 504 from top to bottom, and (embodiment is 8 convex annulars
Platform 504, it is illustrated that annular convex platform quantity and cross sectional shape are only a kind of displaying), can also there are annular convex platform and the section of other quantity
Form；On the upper and lower end face of connecting key A502 axial directions, a boss face A505 and boss face B506 is respectively arranged with；
Such as Fig. 7, the inner surface of clip A501 is provided with circular cone C509, circumferentially uniformly divides in clip A501 one end
Six through hole A510 are furnished with, the installation for holding screw is fixed, and is realized and top connection 101 or the threaded hole in each main body
It is used cooperatively.
Such as Fig. 8, crossover position is respectively arranged with circular cone A507 and conical surface B508 above and below connecting key A502 outer surfaces,
Circular cone A507 or circular cone B508 and circular cone C509 mating surface each other, realize connecting key A502 and clip A501 or
The close contact of clip B503.
The explanation being vertically connected between each assembly is carried out according to the embodiment price in Fig. 3-Fig. 8 below, by six companies
In the annular convex platform 504 for meeting key A502 while the annular groove A117, the annular groove B209 of main body A 201 that are bumped into top connection 101, nibbled
Close and coordinate, bear axial tension；Boss face A505 is bonded with keyway face A118, boss face B506 with keyway face B210, at the same time
Ensure the keyway where the complete sunk key groove face A118 in several faces adjacent with boss face A505, and coordinate with corresponding face and paste
Tightly.Equally, boss where boss face B506 is also fitted close with keyway where the B210 of keyway face.By other 5 connecting keys also into
The same connection of row.When connecting key A502 bears moment of torsion, the boss face A505 and boss face B506 of embedded groove can be common
Transmit moment of torsion.To prevent each connecting key A502 from coming off under stressing conditions, clip A501 and B503 are housed in its outer cover, and
It is fixed with holding screw by threaded hole A119, threaded hole B211, it is not mutually slided circumferentially.
With reference to figure 9, Figure 10, Fig. 9 show another form clip G513, there is one section of circular cone E511 on inner surface,
Radial direction in lower end extends a boss, and six through hole B512, conical surface E511 and connecting key are distributed along the circumference with boss
The conical surface A507 or conical surface B508 of A502 coordinates, and the through hole B512 of upper and lower two clip G513 is aligned two-by-two, is connected with
It is fixed, save the setting of holding screw and its threaded hole.The outer surface of connecting key where each clip limits
Radial displacement.And fixed by holding screw and main body, or pass through bolt and another clamp connection.Each clip is in axial direction
On completely will with rotation assembly, up/down rubber plug release assembly and indicator assembly on keyway coordinate connecting key boss
It is fully wrapped around live, do not make its exposed.
During the work time, by controlling the rotation of rotary valve A202, rotary valve B302, matched somebody with somebody by the rotation of out of phase
Close, opening and the closing of central passage are realized, so as to realize the release of rubber plug.
Each connecting key is coaxial with rotation assembly, up/down rubber plug release assembly, indicator assembly；Connecting key wheel
After the wide profile with rotation assembly, up/down rubber plug release assembly, indicator assembly cooperates, a complete revolution is formed
Face.Each connecting key transmits rotation assembly at the same time and up/down rubber plug release assembly, up/down rubber plug release assembly and indicator are total
Drawing/compressive load and torsion load between.Including rotation assembly, up/down rubber plug release assembly, indicator assembly and connection
Including key, all assembly profiles and connecting key profile at least have an annular groove, and embodiment is each four up and down altogether eight
A annular groove.Including rotation assembly, up/down rubber plug release assembly, indicator assembly and connecting key, all assembly wheels
Wide and connecting key profile at least has an annular convex platform.
Rotation assembly lower end has the exterior contour of annular groove and square groove, and up/down rubber plug release assembly both ends are equal
Exterior contour with annular groove and square groove, the upper end of indicator assembly also have the outer of annular groove and square groove
Contouring, connecting key have an exterior contour of annular convex platform and end face square boss, and connecting key profile and rotation assembly profile,
Up/down rubber plug release assembly profile, indicator assembly profile are worked in coordination.
Apparatus of the present invention can pre-install a rubber plug, two rubber plugs or multiple rubber plugs (including drilling rod rubber plug, casing rubber plug etc.).
According to the quantity for being actually needed changeable rubber plug release assembly, such as the structure setting that Figure 11 is a rubber plug, it is as shown in figure 12
The structure setting of three rubber plugs, including rubber plug B60, rubber plug C70, rubber plug D80.
The present invention has multiple fluid inlets, both can inject fluid by top connection 101, and can also pass through injection head
A106, injection head B113 inject fluid, and final all fluids all enter tubing string from the axle center hole of lower contact 403.
The course of work of apparatus of the present invention is as follows：
1) rubber plug is installed in advance：Ensure that rotary valve B302 closes central bore passage, by rotary valve A202 around central shaft
90 degree of turn so that central bore passage is in open mode, and rubber plug C70 is pressed into central bore passage by top connection 101, makes glue
Plug C70 is in contact with rotary valve B302, and rotating rotary valve A202 makes its closing center's hole path, and rubber plug B60 is passed through top connection
101 press-in central bore passages, rubber plug B60 is in contact with rotary valve B302, (installation site of upper bottom plug is with reference to figure 11 and figure
12)。
2) by apparatus of the present invention upwards with power end (top-drive device, casing feeder or turntable etc.), downwards with
Fluid feed line connects.
3) circulation of fluid：When fluid is from top connection 101 into fashionable, rubber plug B60 is got lodged in rotary valve B302, fluid circulation road
Line is flowed along arrow A11, arrow B22, arrow C33, arrow D44, arrow E55, enters lower linking tube column from lower contact 403.When
For fluid from during injection head A106 or injection head B113 inflows, fluid is also to complete circulation by same paths.
4) rubber plug or setting ball are discharged：When needing to discharge rubber plug or setting ball, pass through Remote Device Control rotary valve
A202 or B302, makes to be rotated by 90 ° around respective rotating shaft, the rubber plug controlled is just released.When needing to launch setting ball, dismantle
Pitching plug 402 can be put into setting ball by hand, then install pitching plug 402.
The device of the invention, can drive driving equipment with top or top is driven casing appliances etc. and matched, and have and transmit big turn round
Square, bear the characteristics of big load, remote control, modularized design, have can launch rubber plug, setting ball, rotation at the same time can on
The advantages that putting and put, cementing the well available for general casing cementing and rotary tail；It cannot be only used for marine well cementing operation, it can also be used to
Land deep ＆ ultra-deep well extended horizontal well well cementing operation；The smooth tripping in of casing tail pipe is not only realized, also saves drilling well
Time, improves cementing quality.
Claims (1)
- A kind of 1. top drive cementing head, it is characterised in that：Include sequentially connected rotation assembly (10), at least one from top to bottom A top cement plug release assembly (20), indicator assembly (40), each assembly pass sequentially through connection component sealed connection,The structure of the rotation assembly (10) is, including is provided with the top connection (101) of central through hole, top connection (101) waist Periphery is set with cylinder (107), and two inlets, two inlets are diametrically symmetrically provided with top connection (101) waist Outer end respectively to being connected to injection head A (106) and injection head B (113), injection head A (106) and injection head B (113) respectively with cylinder Body (107) is fixedly connected；Axis is disposed with from top to bottom between cylinder (107) inner wall and top connection (101) waist periphery Hold (104), retainer nut A (105), sealing ring B (114), sealing ring A (112), retainer nut B (111), lower bearing (108)； Upper bearing (metal) (104) and lower bearing (108) inner ring are sleeved on top connection (101) periphery；The upper and lower port of cylinder (107) is pacified respectively Equipped with upper end cover (102) and bottom end cover (110)；The lower port of top connection (101) is connected with current divider (109) suit；The structure of the top cement plug release assembly (20) is, including main body A (201), and main body A (201) is provided with centre bore for one And the revolving body of eccentric orfice, radially installed has rotary valve A (202) in the middle part of main body A (201), and the both ends of rotary valve A (202) are close Front cover is separately installed with sealing ring B (206), sealing ring A (203), and the outer end of sealing ring B (206) is provided with plug A (204), blocks up Head A (204) is fixed in main body A (201), and plug (204) side of rotary valve A (202) is provided with crossover sub A (205)；The structure of the indicator assembly (40) is, including lower contact (403), and lower contact (403) is cylindrical to be provided with mounting groove, should Pitching plug (402) is provided with the radial hole of mounting groove lower part, pitching plug (402) is fixed in lower contact (403), installation Groove top is provided with indicator (401)；The structure of the connection component is top connection (101) lower port and the top cement plug release assembly of rotation assembly (10) (20) main body A (201) upper port is connected by six connecting key A (502), and six connecting key A (502) internal circular surfaces are with above connecing Head (101) and the cylindrical supporting engagement of main body A (201), six connecting key A (502) are exterior to be set with clip A (501) and card jointly Bind round B (503)；The inner surface of the clip A (501) is provided with circular cone C (509), circumferentially uniformly divides in clip A (501) one end Be furnished with six through hole A (510), connecting key A (502) outer surface up and down crossover position be respectively arranged with circular cone A (507) and Circular cone B (508), circular cone A (507) or circular cone B (508) and circular cone C (509) mating surface each other；Alternatively, One section of circular cone E (511) is provided with the inner surface of clip G (513), the circular cone E (511) of clip G (513) is with connecting The circular cone A (507) or circular cone B (508) for meeting key A (502) coordinate overlap joint, the radial direction in clip G (513) lower end Extend a boss, six through hole B (512) are distributed along the circumference with boss；When the main body A (201) is docked with top connection (101), end face B (208) and the top connection (101) of main body A (201) End face A (116) is bonded, and the seal groove (207) of main body A (201) coordinates with the sealing surface (115) of top connection (101) to be socketed, main body The groove surface B (210) of A (201) aligns in the axial direction with the groove surface A (118) of top connection (101)；The lower end of the top connection (101) is provided with multiple annular grooves, and connecting key A (502) inner surface is set from top to bottom There are multiple annular convex platform (504), on the upper and lower end face of connecting key A (502) axial direction, be respectively arranged with a boss face A (505) And boss face B (506).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697483.XA CN105298439B (en) | 2015-10-23 | 2015-10-23 | A kind of top drive cementing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697483.XA CN105298439B (en) | 2015-10-23 | 2015-10-23 | A kind of top drive cementing head |
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| Publication Number | Publication Date |
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| CN105298439A CN105298439A (en) | 2016-02-03 |
| CN105298439B true CN105298439B (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510697483.XA Active CN105298439B (en) | 2015-10-23 | 2015-10-23 | A kind of top drive cementing head |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111827921A (en) * | 2020-07-16 | 2020-10-27 | 西南石油大学 | Seabed shallow layer natural gas hydrate exploitation and double-pump lifting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547861Y (en) * | 2002-04-29 | 2003-04-30 | 华丽缘 | Cement head connecting apparatus of riser fast connection |
| CN204186347U (en) * | 2014-10-15 | 2015-03-04 | 中国石油集团西部钻探工程有限公司 | Convenient-opening formula instruction cementing head |
| CN104929569A (en) * | 2015-05-19 | 2015-09-23 | 扬州市驰城石油机械有限公司 | Wireless remote-control automatic-control rotary cement head |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8381808B2 (en) * | 2008-10-29 | 2013-02-26 | Halliburton Energy Services, Inc. | Cement head |
| US8505984B2 (en) * | 2011-09-02 | 2013-08-13 | Kris Henderson | Connection assembly for tubular goods |
-
2015
- 2015-10-23 CN CN201510697483.XA patent/CN105298439B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547861Y (en) * | 2002-04-29 | 2003-04-30 | 华丽缘 | Cement head connecting apparatus of riser fast connection |
| CN204186347U (en) * | 2014-10-15 | 2015-03-04 | 中国石油集团西部钻探工程有限公司 | Convenient-opening formula instruction cementing head |
| CN104929569A (en) * | 2015-05-19 | 2015-09-23 | 扬州市驰城石油机械有限公司 | Wireless remote-control automatic-control rotary cement head |
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| Publication number | Publication date |
|---|---|
| CN105298439A (en) | 2016-02-03 |
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Effective date of registration: 20210108 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No. 2 Dongfeng Road, Shaanxi, Baoji Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
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