Remote control casing pipe rotating cement head

Abstract

The utility model discloses a remote control casing pipe rotating cement head which comprises a rotating injection head and a cement head body. The outer cylinder is arranged at the bottom of the outer wall of the rotary injection head; the inner cylinder is arranged in the outer cylinder; the stop pin is arranged on the outer wall of the outer cylinder and extends into the inner cavity of the outer cylinder, and the stop pin comprises a stop pin body arranged on the outer wall of the outer cylinder, a stop pin plug arranged at one end of the stop pin body, a stop pin shaft screwed to one side of the inner cavity of the stop pin body and a stop pin cylinder connected to the outer wall of the stop pin body through a spline; the stop pin cylinder and the outer wall of the outer cylinder are detachably mounted together; and the stop pin switch is arranged at the end part of the stop pin. According to the remote control casing pipe rotating cement head, the stop pin can be automatically opened and closed, the safety of field operation is improved, meanwhile, the cement head is convenient to refit, and a full-automatic casing pipe cement head can be formed by installing a stop pin switch, a controller and other structures on a common cement head.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and cementing, in particular to a remote-controlled casing rotary cementing head. Background Art

[0002] As the petroleum industry continues to develop, drilling technology has developed rapidly. The quality of cementing directly affects the production life of a well and the productivity of a single well. Rotary liner cementing technology has gradually become the mainstream development trend, and the rotary cement head has played a huge role in cementing operations. In particular, in the cementing process, in order to achieve better cementing quality, the liner needs to be rotated during the running, drilling fluid circulation or cementing process.

[0003] At present, the known top drive casing rotary cement head stop pin is opened by manually rotating the hand wheel. Because the cement head is at a certain height from the drilling platform during cementing, people need to be lifted up by a sling to open the stop pin, which brings inconvenience to on-site operation and poses a safety hazard. To this end, we have developed a wireless remote control casing rotary cement head that is convenient for modification of ordinary cement heads to solve the problem of opening the stop pin of the top drive casing rotary cement head. Utility Model Content

[0004] The utility model aims to solve the technical problems in the prior art and proposes a remote-controlled casing rotating cement head.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a remote-controlled casing rotary cement head, comprising: a rotary injection head; an outer cylinder, the outer cylinder is arranged at the bottom of the outer wall of the rotary injection head; an inner cylinder, the inner cylinder is arranged inside the outer cylinder; a stop pin, the stop pin is arranged on the outer wall of the outer cylinder and extends into the inner cavity of the outer cylinder, the stop pin comprises a stop pin body arranged on the outer wall of the outer cylinder, a stop pin plug arranged at one end of the stop pin body, a stop pin shaft screwed to one side of the inner cavity of the stop pin body, and a stop pin cylinder connected to the outer wall of the stop pin body by a spline, the stop pin cylinder and the outer wall of the outer cylinder being removably installed together; a stop pin switch, the stop pin switch is arranged at the end of the stop pin, and the stop pin switch comprises a synchronous box body and a drive group arranged inside the synchronous box body Parts, the synchronization box is set at the end of the stop pin, and the stop pin shaft passes through the drive assembly and extends out of the synchronization box; the stop pin handwheel, the stop pin handwheel can be limitedly sleeved on the stop pin shaft located on the outside of the stop pin switch, and a part of the stop pin handwheel extends into the drive assembly; the locking nut, the locking nut is tightened on one end of the outer wall of the stop pin shaft to limit and fix the stop pin handwheel; the driving screw, the driving screw is threaded on the outer wall of one side of the driving assembly at a position corresponding to the stop pin handwheel, and passes through the stop pin handwheel; the position indicating joint, the position indicating joint is set at the bottom of the outer cylinder; the retaining ring, the retaining ring is set on the outer top of the outer cylinder; the controller base, the controller base is set on the outer wall of the retaining ring; the controller, the controller is set on one side of the controller base.

[0006] In a preferred embodiment, the inner cavity of the inner cylinder is provided with a rubber plug.

[0007] In a preferred embodiment, the stop pin further comprises a grease nipple, a stop pin position indicating rod and a position indicating rod nut;

[0008] A stop pin indicating rod is arranged on one side of the stop pin plug, and the stop pin indicating rod extends out of the stop pin body and is provided with a grease nipple, and a position indicating rod nut is arranged on the outer wall of the stop pin indicating rod located in the cavity of the stop pin body.

[0009] In a preferred embodiment, an O-ring is provided between the stop pin body and the stop pin plug.

[0010] In a preferred embodiment, the drive assembly inside the synchronization box includes a first hexagon socket screw, a first sleeve, a synchronization wheel set, a synchronization wheel coupling, a flat key, a second sleeve, a cover plate and a stop pin actuator;

[0011] A cover plate is provided on the outside of the synchronization box, and the cover plate and the synchronization box are installed together by a first hexagon socket screw, a first sleeve and a second sleeve are respectively provided on the outside of the cover plate, a synchronization wheel group is provided inside the synchronization box, a stop pin actuator is provided on one side of the synchronization box, a synchronization wheel coupling is provided at the output end of the stop pin actuator, and the synchronization wheel coupling extends into the inner cavity of the synchronization box, the synchronization wheel coupling is connected to one of the synchronization wheels in the synchronization wheel group through a flat key, and the stop pin shaft passes through one of the synchronization wheels in the synchronization wheel group away from the stop pin actuator.

[0012] In a preferred embodiment, the outer wall of the stop pin shaft close to the stop pin handwheel is square-shaped, a square hole is provided in the middle of the stop pin handwheel, and a limiting hole is provided on the outer wall of the stop pin handwheel along the circumference of the square hole. A screw hole is provided on the outer wall of a synchronous wheel in the synchronous wheel group corresponding to the stop pin shaft, and the driving screw is screwed into the screw hole and extends into the limiting hole.

[0013] In a preferred embodiment, a protective ring is provided on the top of the outer wall of the positioning joint, a torque block is provided inside the protective ring, a second hexagon socket screw is threaded on the bottom of the outer wall of the torque block and the top of the outer wall of the protective ring, and the second hexagon socket screw is pressed on the protective ring, and the second hexagon socket screw located on the outer wall of the torque block is inserted into the concave cavity of the outer wall of the positioning joint.

[0014] In a preferred embodiment, a wireless receiver and a battery are disposed in the controller.

[0015] Compared with the prior art, the utility model provides a remote-controlled casing rotating cement head, which can automatically complete the opening and closing actions of the stop pin, thereby improving the safety of on-site operations. At the same time, it is convenient for cement head modification. An ordinary cement head can be equipped with a stop pin switch and a controller to form a fully automatic casing cement head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the main partial cross-sectional structure of the utility model;

[0018] Figure 3 It is a side view structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the main cross-sectional structure of the middle stop pin of the utility model;

[0020] Figure 5 This is a schematic diagram of the main cross-sectional structure of the middle stop pin switch of the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the middle stop pin switch of the utility model;

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the stop pin handwheel of the utility model.

[0023] In the figure: 1. Rotating injection head; 2. Outer cylinder; 3. Inner cylinder; 4. Stop pin; 41. Grease nipple; 42. Stop pin indicating rod; 43. Stop pin body; 44. Indicating rod nut; 45. Stop pin plug; 46. O-ring; 47. Stop pin shaft; 48. Stop pin cylinder; 5. Stop pin switch; 51. Synchronous housing; 52. First hexagon socket screw; 53. First bushing; 54. Synchronous wheel set; 55. Synchronous wheel coupling; 56. Flat key; 57. Second bushing; 58. Cover plate; 59. Stop pin actuator; 510. Screw hole; 6. Stop pin handwheel; 61. Square hole; 62. Limit hole; 7. Locking nut; 8. Drive screw; 9. Indicating joint; 10. Second hexagon socket screw; 11. Torque block; 12. Protective ring; 13. Controller base; 14. Controller; 15. Snap ring; 16. Rubber plug. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this description, those skilled in the art can make creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

[0026] The utility model is a remote-controlled casing rotating cement head, which solves the technical problems in the prior art. The overall idea is as follows:

[0027] Embodiment 1:

[0028] See Figure 1-Figure 7A remote control casing rotary cement head, comprising: a rotary injection head 1, an outer tube 2, an inner tube 3, a stop pin 4, a stop pin switch 5, a stop pin handwheel 6, a locking nut 7, a driving screw 8, a position indicating joint 9, a controller base 13, a controller 14 and a clamping ring 15, the outer tube 2 is arranged at the bottom of the outer wall of the rotary injection head 1; the inner tube 3 is arranged inside the outer tube 2; the stop pin 4 is arranged on the outer wall of the outer tube 2 and extends into the inner cavity of the outer tube 2, the stop pin 4 comprises a stop pin body 43 arranged on the outer wall of the outer tube 2, a stop pin plug 45 arranged at one end of the stop pin body 43, a stop pin shaft 47 screwed to one side of the inner cavity of the stop pin body 43, and a stop pin cylinder 48 connected to the outer wall of the stop pin body 43 by a spline, and the stop pin cylinder 48 is detachably installed with the outer wall of the outer tube 2; the stop pin switch 5 is arranged on the stop pin 4 At the end of the stop pin switch 5, the stop pin switch 5 includes a synchronization box body 51 and a driving assembly arranged inside the synchronization box body 51, the synchronization box body 51 is arranged at the end of the stop pin 4, and the stop pin shaft 47 passes through the driving assembly and extends out of the synchronization box body 51; the stop pin handwheel 6 can be limitedly sleeved on the stop pin shaft 47 located on the outside of the stop pin switch 5, and a part of the stop pin handwheel 6 extends into the driving assembly; the locking nut 7 is tightened on one end of the outer wall of the stop pin shaft 47 to limit and fix the stop pin handwheel 6; the driving screw 8 is screwed on the outer wall of one side of the driving assembly at a position corresponding to the stop pin handwheel 6, and passes through the stop pin handwheel 6; the position indicating joint 9 is arranged at the bottom of the outer cylinder 2; the retaining ring 15 is arranged on the outer top of the outer cylinder 2; the controller base 13 is arranged on the outer wall of the retaining ring 15; the controller 14 is arranged on one side of the controller base 13.

[0029] During specific implementation, a rubber plug 16 is provided in the inner cavity of the inner cylinder 3 .

[0030] In a specific implementation, the stop pin 4 also includes a grease nipple 41, a stop pin position indicating rod 42 and a position indicating rod nut 44;

[0031] A stopper pin indicating rod 42 is provided on one side of the stopper pin plug 45 , and the stopper pin indicating rod 42 extends out of the stopper pin body 43 and is provided with a grease nipple 41 , and a position indicating rod nut 44 is provided on the outer wall of the stopper pin indicating rod 42 located in the cavity of the stopper pin body 43 .

[0032] During specific implementation, an O-ring 46 is provided between the stop pin body 43 and the stop pin plug 45 .

[0033] In specific implementation, the driving assembly inside the synchronization box 51 includes a first hexagon socket screw 52, ​​a first sleeve 53, a synchronization wheel set 54, a synchronization wheel coupling 55, a flat key 56, a second sleeve 57, a cover plate 58 and a stop pin actuator 59;

[0034] A cover plate 58 is provided on the outer side of the synchronization case 51, and the cover plate 58 and the synchronization case 51 are installed together by a first hexagon socket screw 52. A first sleeve 53 and a second sleeve 57 are respectively provided on the outer side of the cover plate 58. A synchronization wheel set 54 is provided inside the synchronization case 51. A stop pin actuator 59 is provided on one side of the synchronization case 51. A synchronization wheel coupling 55 is provided on the output end of the stop pin actuator 59, and the synchronization wheel coupling 55 extends to the inner cavity of the synchronization case 51. The synchronization wheel coupling 55 is connected to one of the synchronization wheels in the synchronization wheel set 54 through a flat key 56, and the stop pin shaft 47 passes through one of the synchronization wheels in the synchronization wheel set 54 away from the stop pin actuator 59.

[0035] During specific implementation, the outer wall of the pin stop shaft 47 close to the pin stop handwheel 6 is set in a square shape, a square hole 61 is set in the middle of the pin stop handwheel 6, and a limiting hole 62 is also opened on the outer wall of the pin stop handwheel 6 along the circumference of the square hole 61. A screw hole 510 is opened on the outer wall of a synchronous wheel in the synchronous wheel group 54 corresponding to the pin stop shaft 47, and the driving screw 8 is screwed into the screw hole 510 and extends to the limiting hole 62.

[0036] During specific implementation, a protective ring 12 is provided on the top of the outer wall of the positioning joint 9, and a torque block 11 is provided inside the protective ring 12. The bottom of the outer wall of the torque block 11 and the top of the outer wall of the protective ring 12 are both screwed with a second hexagon socket screw 10, and the second hexagon socket screw 10 is pressed on the protective ring 12. The second hexagon socket screw 10 located on the outer wall of the torque block 11 is inserted into the concave cavity of the outer wall of the positioning joint 9.

[0037] In specific implementation, the controller 14 is provided with a wireless receiver and a battery, which are responsible for receiving the remote control signal and sending instructions to the stop pin switch, so that the stop pin switch is actuated to drive the stop pin shaft to rotate.

[0038] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows:

[0039] First, it should be noted that the controller 14 is equipped with a judgment circuit and can judge the working order of the stop pin switch, that is, before the first stop pin is not working, the second stop pin shall not work, and an indicator light is provided on the corresponding stop pin, the green light is on, and the red light is off, and a power switch and a power display are also provided on the panel. The judgment circuit, the power switch and the power display belong to the existing known technology and will not be described in detail here;

[0040] Before cementing operations, install the controller 14 on the cement head and connect the controller to each switch with a data cable. Turn the power switch counterclockwise to turn on the power, and the corresponding indicator light on the controller panel will light up to inform the current position of each switch. When it is red, it means that the switch is in the closed state, and when it is green, it means that the switch is in the open position. If it is not lit, it means that a switch is not connected to the controller or the current position is not completely in place. At this time, you only need to check whether the controller and the corresponding switch are connected. If they are connected, press the corresponding button on the remote control to move the switch into place. Install the rubber plug 16. When cementing, press the corresponding button on the remote control in the order of first throwing the rubber plug and then throwing the rubber plug. Send instructions to the controller. After receiving the instructions, the controller sends instructions to the corresponding switch. The corresponding switch starts to move after receiving the instructions, and stops automatically after the action is in place. The corresponding indicator light on the controller panel lights up to inform the operator that the corresponding switch has moved into place. If the remote control button is pressed by mistake, the controller will determine whether the lower stop pin has been opened. If not, the button is invalid and the corresponding stop pin does not move.

[0041] When the stop pin switch 5 receives the command and starts to act, the stop pin actuator 59 drives the synchronous wheel group 54 to rotate, and under the action of the driving screw 8, drives the stop pin handwheel 6 to rotate, and then drives the stop pin shaft 47 to rotate. Since the stop pin body 43 is screwed on the stop pin shaft 47, the stop pin body 43 and the stop pin cylinder 48 are splined, the stop pin body 43 cannot rotate, and then the stop pin shaft 47 rotates to push the stop pin body 43 and the stop pin plug to extend or retract, thereby realizing the switch operation. The device has a compact structure and a reasonable design. The switch operation of the stop pin body 43 can be controlled by a remote control. At the same time, the stop pin switch 5, the stop pin handwheel 6 and other structures can be disassembled and assembled from the pin 4, which is convenient for the modification of ordinary cement heads.

[0042] The above description of the embodiments is to facilitate ordinary technicians in this technical field to understand and use the utility model. It is obvious that those familiar with the technology in this field can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A remote-controlled casing rotary cement head, characterized in that: Included are: Rotating injection head (1); An outer cylinder (2), wherein the outer cylinder (2) is arranged at the bottom of the outer wall of the rotary injection head (1); An inner cylinder (3), wherein the inner cylinder (3) is arranged inside the outer cylinder (2); A stop pin (4), the stop pin (4) being arranged on the outer wall of the outer cylinder (2) and extending into the inner cavity of the outer cylinder (2), the stop pin (4) comprising a stop pin body (43) arranged on the outer wall of the outer cylinder (2), a stop pin plug (45) arranged at one end of the stop pin body (43), a stop pin shaft (47) screwed to one side of the inner cavity of the stop pin body (43), and a stop pin cylinder (48) connected to the outer wall of the stop pin body (43) via a spline, the stop pin cylinder (48) being detachably mounted on the outer wall of the outer cylinder (2); A stop pin switch (5), the stop pin switch (5) being arranged at the end of the stop pin (4), the stop pin switch (5) comprising a synchronization housing (51) and a drive assembly arranged inside the synchronization housing (51), the synchronization housing (51) being arranged at the end of the stop pin (4), and the stop pin shaft (47) penetrating the drive assembly and extending out of the synchronization housing (51); A pin stop hand wheel (6), the pin stop hand wheel (6) can be limitedly sleeved on a pin stop shaft (47) located outside the pin stop switch (5), and a portion of the pin stop hand wheel (6) extends into the drive assembly; A locking nut (7), wherein the locking nut (7) is tightened on one end of the outer wall of the stop pin shaft (47) to limit and fix the stop pin hand wheel (6); A driving screw (8), wherein the driving screw (8) is screwed onto an outer wall of one side of the driving component at a position corresponding to the stop pin hand wheel (6) and passes through the stop pin hand wheel (6); A position indicating joint (9), wherein the position indicating joint (9) is arranged at the bottom of the outer cylinder (2); A clamping ring (15), wherein the clamping ring (15) is arranged on the outer top of the outer cylinder (2); A controller base (13), wherein the controller base (13) is arranged on the outer wall of the clamping ring (15); A controller (14), wherein the controller (14) is arranged on one side of the controller base (13).

2. A remote-controlled casing rotary cement head according to claim 1, characterized in that: The inner cavity of the inner cylinder (3) is provided with a rubber plug (16).

3. A remote-controlled casing rotary cement head according to claim 2, characterized in that: The stop pin (4) further comprises a grease nipple (41), a stop pin position indicating rod (42) and a position indicating rod nut (44); A stop pin indicating rod (42) is provided on one side of the stop pin plug (45), and the stop pin indicating rod (42) extends out of the stop pin body (43) and is provided with a grease nipple (41), and an indicating rod nut (44) is provided on the outer wall of the stop pin indicating rod (42) located in the cavity of the stop pin body (43).

4. A remote-controlled casing rotary cementing head according to claim 3, characterized in that: An O-ring (46) is provided between the stop pin body (43) and the stop pin plug (45).

5. A remote-controlled casing rotary cementing head according to claim 4, characterized in that: The driving assembly inside the synchronization housing (51) includes a first hexagon socket screw (52), a first shaft sleeve (53), a synchronization wheel set (54), a synchronization wheel coupling (55), a flat key (56), a second shaft sleeve (57), a cover plate (58) and a stop pin actuator (59); A cover plate (58) is provided on the outer side of the synchronous housing (51), and the cover plate (58) and the synchronous housing (51) are installed together by a first hexagon socket screw (52); a first shaft sleeve (53) and a second shaft sleeve (57) are respectively provided on the outer side of the cover plate (58); a synchronous wheel set (54) is provided inside the synchronous housing (51); a stop pin actuator (59) is provided on one side of the synchronous housing (51); a synchronous wheel coupling (55) is provided at the output end of the stop pin actuator (59), and the synchronous wheel coupling (55) extends to the inner cavity of the synchronous housing (51); the synchronous wheel coupling (55) is connected to one of the synchronous wheels in the synchronous wheel set (54) by a flat key (56); and the stop pin shaft (47) passes through one of the synchronous wheels in the synchronous wheel set (54) away from the stop pin actuator (59).

6. A remote-controlled casing rotary cementing head according to claim 5, characterized in that: The outer wall of the stop pin shaft (47) on the side close to the stop pin hand wheel (6) is arranged in a square shape, a square hole (61) is arranged in the middle of the stop pin hand wheel (6), and a limiting hole (62) is also arranged on the outer wall of the stop pin hand wheel (6) along the circumference of the square hole (61), and a screw hole (510) is arranged on the outer wall of a synchronous wheel at a position corresponding to the stop pin shaft (47) in the synchronous wheel group (54), and the driving screw (8) is screwed into the screw hole (510) and extends into the limiting hole (62).

7. A remote-controlled casing rotary cementing head according to claim 6, characterized in that: A protective ring (12) is arranged at the top of the outer wall of the position indicating joint (9), a torque block (11) is arranged inside the protective ring (12), a second hexagon socket screw (10) is screwed to the bottom of the outer wall of the torque block (11) and the top of the outer wall of the protective ring (12), and the second hexagon socket screw (10) is pressed against the protective ring (12), and the second hexagon socket screw (10) located on the outer wall of the torque block (11) is inserted into the concave cavity of the outer wall of the position indicating joint (9).

8. A remote-controlled casing rotary cementing head according to any one of claims 1 to 7, characterized in that: The controller (14) is provided with a wireless receiver and a battery.

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