CN216841490U

CN216841490U - Anti-toppling centralizer

Info

Publication number: CN216841490U
Application number: CN202220165964.1U
Authority: CN
Inventors: 王成军
Original assignee: Daqing Puqing Drilling Equipment Manufacturing Co ltd
Current assignee: Daqing Puqing Drilling Equipment Manufacturing Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-28
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a prevent centralizer that emptys, including left ring, one side demountable installation of left ring has first side piece, first screw has been seted up to the centre of first side piece, the centre of first side piece has the bolt through first screw demountable installation, one side demountable installation of first side piece has the second side piece, the second screw has been seted up to the centre of second side piece, one side demountable installation of second side piece has right ring, one side of bolt has the nut through second screw demountable installation, the bottom demountable installation of left ring has closing device. Among the above-mentioned scheme, the centralizer that prevents empting passes through closing device's setting, puts into the back in the round hole of cup jointing the piece with the casing string again, uses first telescopic link and second telescopic link to compress tightly the casing string, prevents that the casing string from taking place to drop and slope with the cup jointing the piece, has avoided because the casing string takes place to empty easily after dropping into the device, leads to follow-up needs to take out again and carries out the position correction, relatively influences production efficiency's problem.

Description

Anti-toppling centralizer

Technical Field

The utility model relates to a lead centralizer technical field, more specifically say, the utility model relates to a prevent centralizer that emptys.

Background

The centralizer refers to a rigid and elastic centralizing framework which is arranged on the outer surface of a casing for ensuring that a running casing string is centered in a well bore in oil and gas drilling, and along with the continuous development of the technology, the centralizer has been successfully used for centralizing the casing of various special well bores, is various in form and is more reliable and safer to use.

In the existing centralizer, because a casing string is easy to topple after being put into a device, the casing string needs to be taken out for position correction subsequently, and the production efficiency is influenced; and after the device enters the oil well, the device is not firmly adhered to the inner wall of the oil well, so that the device can slide out of a specified position.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a prevent centralizer that emptys to solve prior art because the device takes place to empty easily after dropping into the oil well, lead to follow-up needs to take out again and carry out the position correction, relatively influence production efficiency's problem.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a prevent centralizer that emptys, includes left ring, one side demountable installation of left side ring has first side piece, first screw has been seted up to the centre of first side piece, there is the bolt through first screw demountable installation in the centre of first side piece, one side demountable installation of first side piece has the second side piece, the second screw has been seted up to the centre of second side piece, one side demountable installation of second side piece has right ring, one side of bolt has the nut through second screw demountable installation, the bottom demountable installation of left side ring has closing device.

The number of the first side blocks is two, the size of the bolt is matched with the first screw holes, the number of the second side blocks corresponds to the first side blocks one to one, the size of the second side blocks is the same as that of the first side blocks, the size of the second screw holes is the same as that of the first screw holes, and the size of the nut is matched with that of the bolt.

The pressing device comprises an annular cylinder, a first through hole is formed in one side of the annular cylinder, a first telescopic rod is movably sleeved on one side of the annular cylinder through the first through hole, a sleeving block is movably sleeved on one side of the first telescopic rod, a round hole is formed in the middle of the sleeving block, a second telescopic rod is movably sleeved on one side of the sleeving block, a second through hole is formed in the other side of the annular cylinder, and one side of the sleeving block is connected with the sleeving block through the second through hole.

The bottom of the pressing device is detachably provided with a bearing ring, the bottom of the bearing ring is detachably provided with a bottom cylinder, one side of the bottom cylinder is detachably provided with a connecting device, and the number of the connecting devices is four.

The connecting device comprises a square block, a through groove is formed in one side of the square block, a top block is detachably mounted at the top of the square block, a top column is detachably mounted at the bottom of the top block, a third telescopic rod is detachably mounted at the bottom of the top column, a bottom column is detachably mounted at the bottom of the third telescopic rod, a bottom block is detachably mounted at the bottom of the bottom column, a supporting block is detachably mounted at one side of the third telescopic rod, the size of the supporting block is matched with the through groove, and a rubber column is detachably mounted at one side of the supporting block.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

in the scheme, the anti-toppling centralizer is arranged through the pressing device, the casing string is placed in the circular hole of the sleeving block, then the first telescopic rod and the second telescopic rod are used for pressing the casing string, the casing string and the sleeving block are prevented from falling off and inclining, and the problem that the production efficiency is relatively influenced due to the fact that the casing string is prone to toppling after being put into the device and then needs to be taken out for position correction subsequently is solved; in the scheme, the anti-toppling centralizer can be in close contact with the inner wall of the oil well through the abutting block and the rubber column after the device is placed into the oil well through the connecting device, and the problem that the device can slide out of a specified position due to the fact that the device is not firmly adhered to the inner wall of the oil well after entering the oil well is solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the assembly of the left and right rings of the present invention;

fig. 3 is a schematic view of the pressing device according to the present invention;

FIG. 4 is a schematic view of the bottom cartridge and connecting device assembly of the present invention;

fig. 5 is a schematic view of the connecting device of the present invention.

[ reference numerals ]

1. A left circular ring; 2. a first side block; 3. a first screw hole; 4. a bolt; 5. a second side block; 6. a second screw hole; 7. a right circular ring; 8. a nut; 9. a pressing device; 91. an annular cylinder; 92. a first through hole; 93. a first telescopic rod; 94. sleeving and connecting blocks; 95. a circular hole; 96. a second telescopic rod; 97. a second through hole; 10. a bearing ring; 11. a bottom barrel; 12. a connecting device; 121. a square block; 122. a through groove; 123. a top block; 124. a top pillar; 125. a third telescopic rod; 126. a bottom pillar; 127. a bottom block; 128. a resisting block; 129. a rubber column.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The embodiment of the utility model provides an anti-toppling centralizer as shown in attached drawings 1-5, which comprises a left ring 1, wherein a first side block 2 is detachably mounted on one side of the left ring 1, a first screw hole 3 is formed in the middle of the first side block 2, a bolt 4 is detachably mounted in the middle of the first side block 2 through the first screw hole 3, a second side block 5 is detachably mounted on one side of the first side block 2, a second screw hole 6 is formed in the middle of the second side block 5, a right ring 7 is detachably mounted on one side of the second side block 5, a nut 8 is detachably mounted on one side of the bolt 4 through the second screw hole 6, and a compressing device 9 is detachably mounted at the bottom of the left ring 1;

the number of the first side blocks 2 is two, the size of the bolt 4 is matched with that of the first screw hole 3, the number of the second side blocks 5 is in one-to-one correspondence with that of the first side blocks 2, the size of the second side blocks 5 is the same as that of the first side blocks 2, the size of the second screw hole 6 is the same as that of the first screw hole 3, the size of the nut 8 is matched with that of the bolt 4, the pressing device 9 comprises an annular cylinder 91, a first through hole 92 is formed in one side of the annular cylinder 91, a first telescopic rod 93 is movably sleeved on one side of the annular cylinder 91 through the first through hole 92, a sleeving and connecting block 94 is movably sleeved on one side of the first telescopic rod 93, a round hole 95 is formed in the middle of the sleeving block 94, a second telescopic rod 96 is movably sleeved on one side of the sleeving block 94, a second through hole 97 is formed in the other side of the annular cylinder 91, one side of the sleeving block 94 is connected with the sleeving block 94 through the second through hole 97, a bearing ring 10 is detachably mounted at the bottom of the pressing device 9, bottom section of thick bamboo 11 is demountable installation to the bottom of bearing ring 10, one side demountable installation of a bottom section of thick bamboo 11 has connecting device 12, connecting device 12's quantity is four, connecting device 12 includes square 121, logical groove 122 has been seted up to one side of square 121, top demountable installation of square 121 has kicking block 123, the bottom demountable installation of kicking block 123 has fore-set 124, the bottom demountable installation of fore-set 124 has third telescopic link 125, the bottom demountable installation of third telescopic link 125 has end column 126, the bottom demountable installation of end column 126 has end block 127, one side demountable installation of third telescopic link 125 has support block 128, support block 128's size and logical groove 122 looks adaptation, support one side demountable installation of block 128 has rubber column 129.

As shown in fig. 4, the bottom of the pressing device 9 is detachably mounted with a receiving ring 10, the bottom of the receiving ring 10 is detachably mounted with a bottom cylinder 11, one side of the bottom cylinder 11 is detachably mounted with a connecting device 12, and the number of the connecting devices 12 is four.

In particular, the purpose of providing four connection devices 12 is to strengthen the adhesion of the connection devices 12 to the inner wall of the well on the one hand, and to make the centre of gravity of the device symmetrical on the other hand, preventing the device from tilting after it has been placed in the well.

The working process of the utility model is as follows:

when the anti-toppling centralizer works, a casing string to be put into is firstly put into the sleeving block 94 of the pressing device 9, then the first telescopic rod 93 and the second telescopic rod 96 are used for compressing and fixing the casing string, the position deviation of the casing string after being put into an oil well is prevented, the casing string is always positioned at the center of a shaft, and the problems that the casing string is toppled over easily after being put into a device, the follow-up centralizer needs to be taken out again for position correction and the production efficiency is influenced are solved.

According to the scheme, when the anti-toppling centralizer works, after the device is placed into an oil well, the third telescopic rod 125 of the connecting device 12 is used, the third telescopic rod 125 pushes the abutting block 128 and the rubber column 129 on one side of the abutting block 128 to be in contact with the inner wall of the oil well, and the problem that the device can slide out of a specified position due to the fact that the device is not firmly adhered to the inner wall of the oil well after entering the oil well is solved.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent centralizer that emptys, includes left ring (1), one side demountable installation of left side ring (1) has first side piece (2), its characterized in that, first screw (3) have been seted up to the centre of first side piece (2), there are bolt (4) in the centre of first side piece (2) through first screw (3) demountable installation, one side demountable installation of first side piece (2) has second side piece (5), second screw (6) have been seted up in the centre of second side piece (5), one side demountable installation of second side piece (5) has right ring (7), one side of bolt (4) is through second screw (6) demountable installation has nut (8), the bottom demountable installation of left side ring (1) has closing device (9).

2. The anti-toppling centralizer according to claim 1, wherein the number of the first side blocks (2) is two, the size of the bolt (4) is matched with that of the first screw hole (3), the number of the second side blocks (5) is in one-to-one correspondence with the first side blocks (2), the size of the second side blocks (5) is the same as that of the first side blocks (2), the size of the second screw hole (6) is the same as that of the first screw hole (3), and the size of the nut (8) is matched with that of the bolt (4).

3. The anti-toppling centralizer according to claim 1, wherein the compression device (9) comprises an annular cylinder (91), a first through hole (92) is formed in one side of the annular cylinder (91), a first telescopic rod (93) is movably sleeved on one side of the annular cylinder (91) through the first through hole (92), a sleeving connection block (94) is movably sleeved on one side of the first telescopic rod (93), a round hole (95) is formed in the middle of the sleeving connection block (94), a second telescopic rod (96) is movably sleeved on one side of the sleeving connection block (94), a second through hole (97) is formed in the other side of the annular cylinder (91), and one side of the sleeving connection block (94) is connected with the sleeving connection block (94) through the second through hole (97).

4. An anti-toppling centralizer according to claim 1, characterized in that a receiving ring (10) is detachably mounted at the bottom of the pressing device (9), a bottom cylinder (11) is detachably mounted at the bottom of the receiving ring (10), a connecting device (12) is detachably mounted at one side of the bottom cylinder (11), and the number of the connecting devices (12) is four.

5. The anti-toppling centralizer according to claim 4, characterized in that the connecting device (12) comprises a square block (121), a through groove (122) is formed in one side of the square block (121), a top block (123) is detachably mounted at the top of the square block (121), a top column (124) is detachably mounted at the bottom of the top block (123), a third telescopic rod (125) is detachably mounted at the bottom of the top column (124), a bottom column (126) is detachably mounted at the bottom of the third telescopic rod (125), a bottom block (127) is detachably mounted at the bottom of the bottom column (126), a resisting block (128) is detachably mounted at one side of the third telescopic rod (125), the resisting block (128) is matched with the through groove (122) in size, and a rubber column (129) is detachably mounted at one side of the resisting block (128).