CN211448607U

CN211448607U - Quick-setting expanding hydraulic packer for petroleum machinery

Info

Publication number: CN211448607U
Application number: CN201922026764.9U
Authority: CN
Inventors: 王英华; 王佳媛; 许东; 崔东华; 王鹏
Original assignee: Dongying Feiyang Petroleum Machinery Co ltd
Current assignee: Dongying Feiyang Petroleum Machinery Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-08
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a quick setting expanding hydraulic packer for petroleum machinery, which comprises a rubber cylinder seat, wherein a first ring groove is arranged at the top end of the rubber cylinder seat, a first compression spring is uniformly welded at the bottom end of the inner wall of the first ring groove, an annular block is slidably connected with the inner wall of the first ring groove, a fixing ring is welded at the top end of the annular block, the inner wall of the fixing ring is connected with an upper connecting head through screw threads, a compression pipe is arranged at the bottom end of the upper connecting head, a fixing shaft seat is sleeved at the bottom end of the rubber seat, water is injected into a central pipe, so that outward pressure is applied to the rubber seat, the rubber seat is expanded, the top end and the bottom end of the rubber seat are contracted, the top end applies pressure to the compression pipe to compress the compression pipe and drive the annular block to compress the first compression spring, and the bottom end of the rubber seat, and meanwhile, the rubber seat is limited, so that the rubber seat is prevented from falling off or breaking easily.

Description

Quick-setting expanding hydraulic packer for petroleum machinery

Technical Field

The utility model relates to a packer equipment field specifically is an expanding hydraulic packer who sits fast for oil machinery.

Background

The packer is provided with an elastic sealing element, and thereby, annular spaces between pipe columns with various sizes and well bores and between the pipe columns are sealed, and a production zone is isolated so as to control production (injection) liquid and protect a downhole tool of the pipe, the packer is used for layering in an oil production process, an oil production channel is designed on the packer, when in setting, a piston sleeve ascends, the oil production channel is opened, after the setting, an upper pressure acts on a balance piston, a rubber sleeve is pushed upwards, and a deblocking pin is prevented from shearing force; when deblocking, the deblocking pin is cut off by the friction force of the rubber cylinder and the sleeve, the piston sleeve descends to close the oil extraction channel, and the packer for oilfield water injection is generally a compression packer or an expansion packer;

however, when the expandable packer is set, the rubber seat bears excessive pressure, which may cause the phenomenon of falling off or deviation, thereby causing the setting to be not tight, so that an expandable hydraulic packer for quick setting of the petroleum machinery is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a petroleum machinery is with expanding hydraulic packer who sets up fast can effectively solve and propose among the above-mentioned background art because the rubber seat bearing pressure is too big when expanding packer sets up, probably causes the phenomenon that drops or skew to cause and sit the not tight problem of sealing.

In order to achieve the above object, the utility model provides a following technical scheme: a quick setting expanding hydraulic packer for petroleum machinery comprises a rubber cylinder seat, wherein a setting assembly is installed at the bottom end of the rubber cylinder seat and comprises a first annular groove, a first compression spring, an annular block, a fixing ring, an upper connector, a compression pipe, a rubber seat, a fixing shaft seat, a second annular groove and a second compression spring;

the rubber tube seat comprises a rubber tube seat body and is characterized in that a first annular groove is formed in the top end of the rubber tube seat body, first compression springs are evenly welded to the bottom end of the inner wall of the first annular groove, an annular block is slidably connected to the inner wall of the first annular groove, a fixing ring is welded to the top end of the annular block, the inner wall of the fixing ring is connected with an upper connector through threads, a compression pipe is installed at the bottom end of the upper connector, the bottom end of the rubber tube seat body is sleeved on the top end of the outer side of the rubber tube seat body, a fixing shaft seat is sleeved at the bottom end of the rubber.

Preferably, the top end of the first compression spring is welded to the bottom end of the annular block.

Preferably, the bottom end of the second compression spring is bonded to the outer side of the bottom end of the rubber seat.

Preferably, the bottom end of the fixed shaft seat is provided with a lower connector, and the inner wall of the lower connector is provided with an annular separation net.

Preferably, the central tube is installed to the compression pipe bottom, the even welding of central tube inner wall has the stiffener, the even welding of central tube inner wall has the support ring, the spring groove has evenly been seted up to fixed axle bed inner wall, the welding of spring inslot inner wall one end has third compression spring, the welding of third compression spring one end has the connecting rod.

Preferably, one end of the reinforcing rod is fixedly penetrated through the support ring.

Preferably, a communicating groove is formed among the rubber seat, the inner side of the fixed shaft seat and the central pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. through the injected water in to the center tube, make water get into the antithetical couplet logical groove to exert outside pressure for the rubber seat, make the rubber seat inflation, rubber seat top and bottom shrink, the top is exerted pressure for the compression pipe and is made its compression and drive the first compression spring of annular piece compression, rubber seat bottom compression second compression spring slides in the second annular groove, thereby the rubber seat inflation obtains the buffering, carries on spacingly simultaneously, the protection rubber seat is difficult for droing or splitting.

2. Through the annular separation net can the aquatic grit and debris block, prevent that grit and debris from getting into the antithetical couplet logical groove, cause the jam, through the effect of stiffener and support ring isotructure, strengthened the intensity of center tube, make it bear bigger pressure when the water injection is set, difficult emergence is damaged, the compressive capacity of connecting rod and the third compression spring in the center tube outside can effectual reinforcing center tube.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the setting assembly of the present invention;

fig. 3 is a schematic view of an installation structure of a first compression spring according to the present invention;

fig. 4 is a schematic view of an installation structure of a second compression spring according to the present invention;

FIG. 5 is a schematic view of the installation structure of the partition net of the present invention;

FIG. 6 is a schematic view of the mounting structure of the receiving ring of the present invention;

reference numbers in the figures: 1. a rubber cylinder seat;

2. a setting assembly; 201. a first annular groove; 202. a first compression spring; 203. a ring block; 204. a fixing ring; 205. an upper connector; 206. compressing the tube; 207. a rubber seat; 208. fixing the shaft seat; 209. a second annular groove; 210. a second compression spring;

3. a lower connector; 4. an annular separation net; 5. a central tube; 6. a reinforcing bar; 7. a support ring; 8. a spring slot; 9. a third compression spring; 10. a connecting rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-6, the utility model provides a technical scheme, an expanding hydraulic packer that quick setting is used to petroleum machinery, including packing element seat 1, packing element 2 is installed to packing element seat 1 bottom, packing element 2 includes first ring channel 201, first compression spring 202, annular piece 203, solid fixed ring 204, goes up connector 205, compression pipe 206, rubber seat 207, fixed axle bed 208, second ring channel 209 and second compression spring 210;

the top end of the rubber cylinder seat 1 is provided with a first annular groove 201, the bottom end of the inner wall of the first annular groove 201 is uniformly welded with a first compression spring 202, the inner wall of the first annular groove 201 is connected with an annular block 203 in a sliding manner, the top end of the annular block 203 is welded with a fixing ring 204, the inner wall of the fixing ring 204 is connected with an upper connector 205 through a thread, the bottom end of the upper connector 205 is provided with a compression pipe 206, the bottom end of the rubber cylinder seat 1 is sleeved on the top end of the outer side of the rubber seat 207, the bottom end of the rubber seat 207 is sleeved with a fixing shaft seat 208, the inner wall of the fixing shaft seat 208 is provided with a second annular groove 209, the top end of the inner wall of the second annular groove 209 is uniformly welded with a second compression spring 210, the top end of the first compression spring 202 is welded on the bottom end of the annular block 203, its bottom compression second compression spring 210 makes its inflation obtain the buffering to be difficult for droing and damaging, connector 3 under fixed axle bed 208 bottom is installed, and annular separation net 4 is installed to 3 inner walls of lower connector, is convenient for filter impurity and sand in the aquatic, prevents to cause the jam, thereby causes and can not sit and seal.

Center tube 5 is installed to compression pipe 206 bottom, the even welding of 5 inner walls of center tube has stiffener 6, the even welding of 5 inner walls of center tube has support ring 7, spring groove 8 has evenly been seted up to fixed axle bed 208 inner wall, the welding of 8 inner walls one end in spring groove has third compression spring 9, the welding of 9 one end of third compression spring has connecting

rod

10, 6 one end of stiffener are fixed to run through support ring 7, strengthen the bearing capacity of center tube 5, when making the seat seal, the 5 outside of center tube can bear bigger pressure, rubber seat 207, link up the groove has been seted up between fixed axle bed 208 inboard and the center tube 5, the water of being convenient for gets into and links up the groove, thereby make.

The utility model discloses a theory of operation and use flow: first, the packer is placed in the well bore, water is injected into the base pipe 5 from the upper connector 205, the lower connector 3 is sealed, the water flow reaches the bottom end and then enters the communicating channel, then, the communication groove between the rubber seat 207 and the central tube 5 is partially accumulated, the rubber seat 207 is expanded outward by the pressure of water, the rubber seat 207 is expanded to abut against the oil well pipe, and when the rubber seat 207 is expanded, the upper end moves downwards to apply pressure to the top end of the compression tube 206, so that the compression tube 206 contracts, the compression tube 206 drives the fixing ring 204 to move downwards, so that the bottom end of the annular block 203 slides in the first annular groove 201, the bottom end of the annular block 203 compresses the first compression spring 202, the bottom end of the rubber seat 207 contracts upwards, the bottom end slides in the second annular groove 209, and simultaneously the second compression spring 210 is compressed, thereby buffering and limiting the expansion of the rubber seat 207 and avoiding the deviation or damage of the rubber seat 207;

secondly, an annular separation net 4 is arranged at a water inlet at the bottom end of the communicating groove, impurities and sand in water can be effectively blocked by the annular separation net 4, and the condition that the communicating groove is blocked and cannot be set is avoided;

finally, through welding on the center tube 5 has stiffener 6 and support ring 7, stiffener 6 links to each other with support ring 7, and there are connecting rod 10 and third compression spring 9 to cushion in the center tube 5 outside simultaneously, can effectual reinforcing center tube 5's compressive capacity, when making rubber seat 207 expand, center tube 5 one side can bear the pressure of bigger water.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement 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 an expanding hydraulic packer who sets fast for petroleum machinery, includes packing element seat (1), its characterized in that: a setting component (2) is installed at the bottom end of the rubber barrel seat (1), and the setting component (2) comprises a first annular groove (201), a first compression spring (202), an annular block (203), a fixing ring (204), an upper connecting head (205), a compression pipe (206), a rubber seat (207), a fixing shaft seat (208), a second annular groove (209) and a second compression spring (210);

first ring channel (201) have been seted up on packing element seat (1) top, the even welding in first ring channel (201) inner wall bottom has first compression spring (202), first ring channel (201) inner wall sliding connection has annular piece (203), annular piece (203) top welding has solid fixed ring (204), gu fixed ring (204) inner wall has last connector (205) through threaded connection, go up connector (205) bottom and install compression pipe (206), packing element seat (1) bottom is cup jointed in rubber seat (207) outside top, rubber seat (207) bottom has cup jointed fixed axle bed (208), second ring channel (209) have been seted up to fixed axle bed (208) inner wall, the even welding in second ring channel (209) inner wall top has second compression spring (210).

2. The quick setting expandable hydraulic packer for petroleum machinery as claimed in claim 1, wherein: the top end of the first compression spring (202) is welded to the bottom end of the annular block (203).

3. The quick setting expandable hydraulic packer for petroleum machinery as claimed in claim 1, wherein: the bottom end of the second compression spring (210) is adhered to the outer side of the bottom end of the rubber seat (207).

4. The quick setting expandable hydraulic packer for petroleum machinery as claimed in claim 1, wherein: the lower connector (3) is installed at the bottom end of the fixed shaft seat (208), and the annular separation net (4) is installed on the inner wall of the lower connector (3).

5. The quick setting expandable hydraulic packer for petroleum machinery as claimed in claim 1, wherein: center tube (5) are installed to compression pipe (206) bottom, the even welding of center tube (5) inner wall has stiffener (6), the even welding of center tube (5) inner wall has support ring (7), spring groove (8) have evenly been seted up to fixed axle bed (208) inner wall, the welding of spring groove (8) inner wall one end has third compression spring (9), the welding of third compression spring (9) one end has connecting rod (10).

6. The quick setting expandable hydraulic packer of claim 5, wherein: one end of the reinforcing rod (6) is fixedly penetrated through the support ring (7).

7. The quick setting expandable hydraulic packer for petroleum machinery as claimed in claim 1, wherein: communicating grooves are formed between the inner sides of the rubber seat (207) and the fixed shaft seat (208) and the central pipe (5).