Wellhead-penetrating manual sealing device

Abstract

The manual sealing device comprises an installation base, the installation base comprises a base main plate, the front edge and the rear edge of the base main plate are each provided with a detachable guide pressing block, the left edge and the right edge of the base main plate are each provided with a detachable end limiting plate, and the end limiting plates are connected with the guide pressing blocks. The outer wall of each end limiting plate is provided with a jacking rod, and a detachable cover plate is arranged above the mounting base. The wellhead-crossing manual sealing device is manually operated, a hydraulic system does not need to be added, installation is convenient, the application range of tubular column sealing of well-crossing equipment can be effectively enlarged, meanwhile, safety risks are reduced, reliability is good, operation is convenient, and practicability is high. In addition, the manual sealing device penetrating through the wellhead is small in size, large in drift diameter, capable of being suitable for pipe columns of various sizes by replacing the rubber core and wide in application range.

Description

Technical Field

[0001] The utility model relates to oil field equipment, more specifically, to a manual sealing device for penetrating a wellhead. Background Art

[0002] During the construction of the crossing well, there is no special well control equipment, but during the circulation well washing and drilling process, liquid often sprays out of the drilling table. Although the pressure is not high, it pollutes the environment, and there is no suitable annular space sealing equipment on the circulation spool. If the currently commonly used hydraulic well control equipment is installed, it will not only require a large space and high cost, but also require some changes to the original equipment, which is very troublesome. Utility Model Content

[0003] Based on this, it is necessary to provide a manual sealing device for crossing the wellhead to address the above technical problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A manual sealing device for passing through a wellhead, characterized in that the manual sealing device for passing through a wellhead comprises a mounting base, the mounting base comprises a base mainboard, a flange connector is provided at the bottom of the base mainboard,

[0006] The front and rear edges of the base main board are each provided with a detachable guide pressing block, the left and right edges of the base main board are each provided with a detachable end limit plate, and the outer wall of the end limit plate is provided with a tightening rod.

[0007] A mainboard circular hole is provided in the middle of the base mainboard, a pair of oppositely arranged rubber cores are provided on the upper surface of the base mainboard, the rubber cores are symmetrically arranged on the circumference of the mainboard circular hole, a rubber core connecting block is provided on the outer side of each of the rubber cores, and the end limit plates and the rubber cores clamp the rubber core connecting blocks.

[0008] A detachable cover plate is arranged above the installation base, and the cover plate is detachably connected to the guide pressing block.

[0009] As a preferred embodiment of the utility model, a plurality of guide pressure block connection holes are provided on the front and rear edges of the base mainboard, the guide pressure block connection holes are connected to the guide pressure block through a pressure block bolt, and the pressure block bolt is provided with a pressure block washer and a pressure block spring washer.

[0010] As a preferred embodiment of the utility model, a pair of lateral connecting holes are provided on the left and right end faces of the guide pressure block, and the lateral connecting holes are connected to the end limit plate through a limit plate bolt, and the limit plate bolt is provided with a limit washer and a limit spring washer.

[0011] As a preferred embodiment of the utility model, a circular hole of the cover plate is provided in the middle part, a plurality of cover plate bolts are provided on the circumference of the circular hole of the cover plate, a plurality of locking bolts are provided on the front and rear edges of the cover plate, a plurality of pressure block top holes are provided on the top end surface of the guide pressure block, the locking bolts pass through the pressure block top holes, and a locking washer and a locking spring washer are provided on the locking bolts.

[0012] As a preferred embodiment of the utility model, the cover plate is provided with a pair of oblong observation slots, each of which is provided with a slot bolt, which passes through the observation slot and is connected to the rubber core connecting block.

[0013] As a preferred embodiment of the utility model, both ends of the rubber core are provided with an insertion rod, and both ends of the rubber core connecting block are provided with an insertion hole, and the insertion rod passes through the insertion hole.

[0014] As a preferred embodiment of the utility model, an O-ring is provided on the circular hole of the mainboard.

[0015] As a preferred embodiment of the present invention, the cross section of the guide pressing block is in an "L" shape.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a manual sealing device for a wellhead, which is manually operated, does not require the addition of a hydraulic system, is easy to install, can effectively increase the applicable scope of pipe column sealing of wellhead equipment, and reduces safety risks at the same time, has good reliability, is easy to operate, and is highly practical. In addition, the manual sealing device for a wellhead is small in size and large in diameter, and can also be suitable for pipe columns of various sizes by replacing the rubber core, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a three-dimensional structural schematic diagram of the manual sealing device for crossing a wellhead of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the exploded three-dimensional structure of the manual sealing device for the wellhead;

[0021] The markings in the figure are as follows: 1. Mounting base; 10. Cover bolt; 10S. Base mainboard; 11. Locking bolt; 11A. Locking washer; 11B. Locking spring washer; 11S. Flange connector; 12S. Guide pressure block connecting hole; 14. Slot bolt; 15. Guide pressure block; 151S. Pressure block top hole; 15S. Side connection hole; 16. O-ring; 17. Pressure block bolt; 17A. Pressure block washer; 17B. Pressure block spring washer; 1S. Mainboard round hole; 2. End limit plate; 3. Tightening rod; 4. Limit plate bolt; 5. Limit spring washer; 6. Limit washer; 7. Rubber core connecting block; 71. Plug hole; 8. Rubber core; 81. Plug rod; 9. Cover plate; 91S. Observation slot; 9S. Cover plate round hole. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] like Figure 1 and Figure 2 As shown, the manual sealing device for penetrating the wellhead includes a mounting base 1, and the mounting base 1 includes a base main plate 10S. A flange connector 11S is provided at the bottom of the base main plate 10S.

[0024] The front and rear edges of the base main board 10S are each provided with a detachable guide pressing block 15 , the left and right edges of the base main board 10S are each provided with a detachable end limit plate 2 , and the outer wall of the end limit plate 2 is each provided with a tightening rod 3 .

[0025] A mainboard circular hole 1S is provided in the middle of the base mainboard 10S, and a pair of relatively arranged rubber cores 8 are provided on the upper surface of the base mainboard 10S. The rubber cores 8 are symmetrically arranged on the circumference of the mainboard circular hole 1S, and a rubber core connecting block 7 is provided on the outer side of the rubber core 8. The end limit plate 2 and the rubber core 8 clamp the rubber core connecting block 7.

[0026] A detachable cover plate 9 is disposed above the mounting base 1 , and the cover plate 9 is detachably connected to the guide pressing block 15 .

[0027] It should be noted that a plurality of guide pressure block connection holes 12S are provided on the front and rear edges of the base main board 10S. The guide pressure block connection hole 12S is connected to the guide pressure block 15 through a pressure block bolt 17. The pressure block bolt 17 is provided with a pressure block washer 17A and a pressure block spring washer 17B.

[0028] In addition, the cross section of the guide pressing block 15 is in an "L" shape. A pair of lateral connection holes 15S are provided on the left and right end surfaces of the guide pressing block 15. The lateral connection holes 15S are connected to the end limit plate 2 through a limit plate bolt 4. The limit plate bolt 4 is provided with a limit washer 6 and a limit spring washer 5.

[0029] In addition, a cover plate circular hole 9S is provided in the middle of the cover plate 9, and a plurality of cover plate bolts 10 are provided on the circumference of the cover plate circular hole 9S. A plurality of locking bolts 11 are provided on the front and rear side edges of the cover plate 9. A plurality of pressure block top holes 151S are provided on the top end surface of the guide pressure block 15. The locking bolts 11 penetrate the pressure block top holes 151S, and a locking washer 11A and a locking spring washer 11B are provided on the locking bolts 11.

[0030] In addition, the cover plate 9 is provided with a pair of oblong observation slots 91S, each of which is provided with a slot bolt 14 , which passes through the observation slot 91S and is connected to the rubber core connection block 7 .

[0031] In addition, both ends of the rubber core 8 are provided with an insert rod 81 , and both ends of the rubber core connecting block 7 are provided with an insert hole 71 , and the insert rod 81 passes through the insert hole 71 .

[0032] In addition, an O-ring 16 is disposed on the circular hole 1S of the main board.

[0033] The working method of the manual sealing device for crossing the wellhead is described below.

[0034] Construction requirements: Install the mounting base 1 on the circulation spool of the well drilling equipment.

[0035] The guide pressing block 15 is connected to the mounting base 1 through a pressing block spring washer 17B, a pressing block washer 17A and a pressing block bolt 17 .

[0036] Install the O-ring 16 in the O-groove on the upper portion of the mounting base 1 .

[0037] The rubber core 8 and the rubber core connecting block 7 are installed between the mounting base 1 and the guide pressing block 15 .

[0038] The end limit plate 2 is connected to the mounting base 1 and the guide pressing block 15 through the limit plate bolt 4, the limit spring washer 5 and the limit washer 6.

[0039] Then, the cover plate 9 is installed and connected to the guide pressing block 15 via the locking bolt 11 , the locking washer 11A and the locking spring washer 11B.

[0040] It should be noted that during construction, the sealing of the pipe column is achieved by adjusting the jacking rod 3 and the cover bolt 10. Specifically, by rotating the jacking rod 3, the rubber core connection block 7 and the rubber core 8 are pushed toward the middle for compression, thereby achieving sealing.

[0041] The manual sealing device for the wellhead is manually operated, does not require the addition of a hydraulic system, is easy to install, can effectively increase the applicable scope of the pipe column sealing of the wellhead equipment, and at the same time reduce safety risks, has good reliability, is easy to operate, and is highly practical. In addition, the manual sealing device for the wellhead is small in size, large in diameter, and can be suitable for pipe columns of various sizes by replacing the rubber core, and has a wide range of applications.

[0042] Without limitation to this, any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope defined in the claims.

Claims

1. A manual sealing device for crossing a wellhead, characterized in that: The manual sealing device for penetrating a wellhead comprises a mounting base (1), wherein the mounting base (1) comprises a base main plate (10S), and a flange connector (11S) is provided at the bottom of the base main plate (10S). The front and rear edges of the base main board (10S) are each provided with a detachable guide pressure block (15), the left and right edges of the base main board (10S) are each provided with a detachable end limit plate (2), and the outer wall of the end limit plate (2) is each provided with a tightening rod (3). A mainboard circular hole (1S) is provided in the middle of the base mainboard (10S), a pair of oppositely arranged rubber cores (8) are provided on the upper surface of the base mainboard (10S), the rubber cores (8) are symmetrically arranged in the circumferential direction of the mainboard circular hole (1S), a rubber core connecting block (7) is provided on the outer side of each of the rubber cores (8), the end limit plate (2) and the rubber core (8) clamp the rubber core connecting block (7), A detachable cover plate (9) is provided above the mounting base (1), and the cover plate (9) is detachably connected to the guide pressing block (15).

2. The manual sealing device for crossing a wellhead according to claim 1, characterized in that: A plurality of guide pressure block connection holes (12S) are provided on the front and rear edges of the base main board (10S); the guide pressure block connection holes (12S) are connected to the guide pressure block (15) via a pressure block bolt (17); and the pressure block bolt (17) is provided with a pressure block washer (17A) and a pressure block spring washer (17B).

3. The manual sealing device for crossing a wellhead according to claim 2, characterized in that: A pair of lateral connection holes (15S) are provided on the left and right end surfaces of the guide pressure block (15), and the lateral connection holes (15S) are connected to the end limit plate (2) via a limit plate bolt (4), and the limit plate bolt (4) is provided with a limit washer (6) and a limit spring washer (5).

4. The manual sealing device for crossing a wellhead according to claim 3 is characterized in that: A circular cover hole (9S) is provided in the middle of the cover plate (9), a plurality of cover plate bolts (10) are provided on the circumference of the circular cover hole (9S), a plurality of locking bolts (11) are provided on the front and rear edges of the cover plate (9), a plurality of pressure block top holes (151S) are provided on the top end surface of the guide pressure block (15), the locking bolts (11) pass through the pressure block top holes (151S), and a locking washer (11A) and a locking spring washer (11B) are provided on the locking bolts (11).

5. The manual sealing device for crossing a wellhead according to claim 4, characterized in that: The cover plate (9) is provided with a pair of oblong observation slots (91S) extending therethrough. A slot bolt (14) is provided in each of the observation slots (91S). The slot bolt (14) passes through the observation slots (91S) and is connected to the rubber core connection block (7).

6. The manual sealing device for crossing a wellhead according to claim 5, characterized in that: Both ends of the rubber core (8) are provided with an insertion rod (81), and both ends of the rubber core connection block (7) are provided with an insertion hole (71), and the insertion rod (81) passes through the insertion hole (71).

7. The manual sealing device for crossing a wellhead according to claim 6, characterized in that: An O-ring (16) is provided on the mainboard circular hole (1S).

8. The manual sealing device for crossing a wellhead according to claim 7, characterized in that: The cross section of the guide pressing block (15) is in an "L" shape.

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