CN210396698U

CN210396698U - Scraping tool for eccentric water distributor

Info

Publication number: CN210396698U
Application number: CN201921226194.1U
Authority: CN
Inventors: 阿布力米提·阿不都拉; 艾尔肯·艾拜; 唐宙宁
Original assignee: Xinjiang Zhundong Petroleum Technology Co ltd
Current assignee: Xinjiang Zhundong Petroleum Technology Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-24
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to an eccentric water distributor guide way scraping tool technical field is an eccentric water distributor scraping tool, it is including the rotary joint assembly, salvage claw cover and claw cover spring, the upper end of rotary joint assembly is equipped with the connecting portion that can connect the lower extreme to be connected with salvaging of the device of salvaging of eccentric water distributor, salvage the claw cover and install in the lower part of rotary joint assembly and can rotate around its axis, the inside of salvaging the claw cover is equipped with the claw cover cavity, the bottom middle part of salvaging the claw cover is equipped with and overlaps the communicating claw cover entry of cavity with the claw, salvage claw cover lower part equipartition and be no less than two and open slot decurrent. The utility model has the advantages of reasonable and compact structure, convenient to use, it installs the lower extreme at eccentric water injection mandrel fishing device through the rotary joint assembly, can effectively scrape the dirty dirt of clearance eccentric water injection mandrel guide way to realize salvaging of blanking plug or adjustable water injection well choke, have with low costs, construct convenient, safe and reliable, the wide characteristics of application scope.

Description

Scraping tool for eccentric water distributor

Technical Field

The utility model relates to an eccentric water distributor guide way scraping tool technical field is an eccentric water distributor scraping tool.

Background

The principle of the method is that a packer is put into a water injection well to separate oil layers, an eccentric water distributor is installed at each water injection layer, and an adjustable water nozzle is installed in a water nozzle chamber of the eccentric water distributor to realize water distribution in layers. Along with the oil field enters a high water content development period in succession, interlayer contradiction is continuously intensified, and meanwhile, under the influence of the problems that the standard reaching rate of water quality of injected water is low and the like, in the water injection process, various salt crystals and sediments are easy to condense at the parts of the inner wall of an oil pipe, the guide groove of an eccentric water distributor, the inner wall of a water nozzle chamber, the water inlet and the water outlet of the water nozzle chamber and the like, and impurities such as ferric oxide and the like generated after. In the process of measuring and adjusting the eccentric separate injection well and throwing and fishing the adjustable water nozzle, the accumulation of sundries reduces the throwing and fishing success rate and the quality of layered quantitative water injection, and greatly shortens the well repairing period. At present, no effective tool can realize the dirt removal of the guide groove of the eccentric water distributor. In the actual production process, along with the condition of the water injection well worsens day by day, the scaling of the water injection pipe column is serious, and in the field measurement and adjustment, production quality accidents such as the water nozzle cannot be fished out, the measurement and adjustment is unsuccessful and the like are frequently encountered, so that the water injection well cannot be reasonably adjusted and the pipe column is replaced in the face of well repair, and the well repair cost is greatly increased.

At present, oil pipe scrapers are commonly used in various domestic oil fields to remove various salt crystals, sediments, iron oxide and other impurities remained on the inner wall of an oil pipe, but the existing oil pipe scrapers can only scrape the inner wall of the oil pipe and cannot scrape and remove the impurities remained on the inner walls of a guide groove and a water nozzle chamber of an eccentric water distributor. When the guide way scale deposit is serious, often lead to draging for the operation and can't succeed, can cause the well workover once more in this well short-term, not only well workover operation expense is higher, more can influence the normal water injection production in oil field, leads to great loss.

Disclosure of Invention

An object of the utility model is to provide an eccentric water injection mandrel scraping tool has overcome above-mentioned prior art not enough, and it can effectively solve the dirt clearance that can't carry out eccentric water injection mandrel guide way at present, leads to the water injection well choke to drag for out, survey and transfer unsuccessful, produces the problem that well workover cycle is short, well workover expense is high, influence oil field water injection production.

The purpose of the utility model is realized like this: a scraping tool for an eccentric water distributor comprises a rotary joint assembly, a salvaging claw sleeve and a claw sleeve spring, wherein the upper end of the rotary joint assembly is provided with a connecting part which can be connected with the lower end of a salvaging claw joint of a salvaging device of the eccentric water distributor, the salvaging claw sleeve is arranged at the lower part of the rotary joint assembly and can rotate around the axis of the salvaging claw sleeve, a claw sleeve cavity is arranged inside the salvaging claw sleeve, the middle part of the bottom end of the salvaging claw sleeve is provided with a claw sleeve inlet which is communicated with the claw sleeve cavity, the lower part of the salvaging claw sleeve is uniformly provided with at least two open grooves with downward openings, the open grooves are communicated with the claw sleeve cavity, the upper ends of the open grooves are positioned at the middle part of the salvaging claw sleeve, the salvaging claw sleeve between two adjacent open grooves forms an elastic claw which can be opened outwards, the lower end of the salvaging claw sleeve is provided with a claw tooth with, and a claw sleeve spring is arranged in the claw sleeve cavity, the upper end of the claw sleeve spring is tightly pressed at the lower end of the rotary joint assembly, and the lower end of the claw sleeve spring is tightly pressed at the upper part of the clamping block.

Further, the rotary joint assembly comprises a joint sleeve body, a joint rod body and an adapter, the upper end connecting part of the rotary joint assembly is a joint sleeve thread counter bore arranged at the upper end of the joint sleeve body, the internal thread of the joint sleeve thread counter bore can be matched with the external thread at the lower end of a fishing and grabbing joint of a fishing and throwing device, the center of the bottom surface of the joint sleeve thread counter bore is provided with a joint sleeve through hole, the joint rod body comprises a cylindrical joint rod head and a cylindrical connecting rod body, the middle part of the lower end of the joint rod head is connected with the upper end of the connecting rod body into a whole, the joint rod head is sleeved in the joint sleeve thread counter bore and can rotate, the connecting rod body passes through the joint sleeve through hole and extends to the lower part of the joint sleeve body, the adapter is internally provided with a joint cavity hole along the vertical direction, the adapter comprises a rotary handle section and an external thread section, the lower end of the rotary handle section is connected with, the middle part of the wrench clamping groove is provided with a joint upper pin hole, a connecting rod pin hole is arranged on a connecting rod body corresponding to the position of the joint upper pin hole, a joint lock pin is fixedly arranged in the joint upper pin hole and the connecting rod pin hole, a joint external thread is arranged on the outer side of the lower part of the outer screw section, a claw sleeve internal thread matched with the joint external thread is arranged on the upper part of the inner wall of the salvaging claw sleeve, and the lower part of the outer screw section is fixedly connected with the upper part of the salvaging claw sleeve through the.

Furthermore, the side wall of the middle part of the salvaging claw sleeve is provided with a long circular hole with a long axis along the vertical direction, and the inner end of the long circular hole is communicated with the cavity of the claw sleeve.

Furthermore, the upper part of the salvaging claw sleeve is provided with a claw sleeve pin hole which penetrates through the salvaging claw sleeve from front to back, the outer thread section corresponding to the claw sleeve pin hole is provided with a joint lower pin hole, and claw sleeve lock pins are fixedly arranged in the claw sleeve pin hole and the joint lower pin hole.

Furthermore, the upper part of the sleeve body is provided with a sleeve connecting pin hole which penetrates through the sleeve body from front to back, and a sleeve connecting lock pin which can lock the sleeve body and the lower end of the throwing and fishing device is fixedly arranged in the sleeve connecting pin hole.

Furthermore, the rotary scraper is installed to the lower part of salvaging claw cover, the rotary scraper includes rotatory scraper of toper or wire brush scraper, and the upper end of rotary scraper is equipped with the boss dop that can adorn the card in salvaging claw cover lower part elasticity jack catch.

The utility model has the advantages of reasonable and compact structure, convenient to use, it installs the lower extreme at eccentric water injection mandrel fishing device through the rotary joint assembly, can effectively scrape the dirty dirt of clearance eccentric water injection mandrel guide way to realize salvaging of blanking plug or adjustable water injection well choke, have with low costs, construct convenient, safe and reliable, the wide characteristics of application scope.

Drawings

The specific structure of the utility model is given by the following drawings and embodiments:

FIG. 1 is a schematic sectional view of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the conical rotary scraper of the present invention during scraping operation;

fig. 3 is a schematic view of the adjustable water faucet during fishing.

Legend: 1. salvaging claw sleeve, 2, claw sleeve spring, 3, salvaging claw joint, 4, claw sleeve cavity, 5, open slot, 6, elastic claw, 7, claw tooth, 8, concave cambered surface, 9, clamping block, 10, joint sleeve body, 11, connecting rod body, 12, adapter, 13, joint sleeve thread counter bore, 14, joint sleeve through hole, 15, joint cavity hole, 16, wrench clamping groove, 17, joint upper pin hole, 18, claw sleeve internal thread, 19, long round hole, 20, joint lower pin hole, 21, joint sleeve lock pin, 22, conical rotary scraper, 23, adjustable water nozzle, 24 and boss clamping head.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

Example (b): as shown in fig. 1-3, the scraping tool for the eccentric water distributor comprises a rotary joint assembly, a salvaging claw sleeve 1 and a claw sleeve spring 2, wherein the upper end of the rotary joint assembly is provided with a connecting part which can be connected with the lower end of a salvaging claw joint 3 of a casting and salvaging device of the eccentric water distributor, the salvaging claw sleeve 1 is arranged at the lower part of the rotary joint assembly and can rotate around the axis of the salvaging claw sleeve, a claw sleeve cavity 4 is arranged inside the salvaging claw sleeve 1, the middle part of the bottom end of the salvaging claw sleeve 1 is provided with a claw sleeve inlet which is communicated with the claw sleeve cavity 4, the lower part of the salvaging claw sleeve 1 is uniformly provided with at least two open grooves 5 with downward openings, the open grooves 5 are communicated with the claw sleeve cavity 4, the upper ends of the open grooves 5 are positioned at the middle part of the salvaging claw sleeve 1, the salvaging claw sleeve 1 between two adjacent open grooves 5 forms an elastic claw 6 which can be opened outwards, the, the inner walls of the elastic clamping claws 6 corresponding to the upper part of the concave cambered surface 8 are respectively provided with a clamping block 9, the claw sleeve cavity 4 is internally provided with a claw sleeve spring 2, the upper end of the claw sleeve spring 2 is tightly pressed at the lower end of the rotary joint assembly, and the lower end of the claw sleeve spring 2 is tightly pressed at the upper part of the clamping block 9. In practice, the teeth 7 of the lower end of the fishing claw sleeve 1 are preferably heat treated to increase hardness and wear resistance, so as to prolong the service life. The lower end of a fishing and grabbing joint 3 of the existing casting and fishing device of the eccentric water distributor is only provided with a fishing head with the lower end being a plane through threads, and the casting and fishing device only has the function of fishing a blanking plug or an adjustable water nozzle and has a single function. The utility model discloses a set up open slot 5 in current fishing head lower part, and set up claw 7 at its lower extreme, form new fishing claw cover 1 that has scraping effect concurrently, install fishing claw cover 1 at the lower extreme of eccentric water injection mandrel casting and fishing device through the swivel joint assembly, make its during operation can rotate around the axis of swivel joint assembly, it is better to scrape the effect, can judge whether eccentric water injection mandrel room has blanking plug or adjustable water injection well choke through fishing claw cover 1, after scraping the dirt in the clearance eccentric water injection mandrel guide way, as shown in figure 3, can also salvage blanking plug or adjustable water injection well choke 23 installed in eccentric water injection mandrel room smoothly, can cooperate fixture block 9 to realize the reliable locking to blanking plug or adjustable 23 upper end boss dop 24 through claw cover spring 2, have the dependable performance, rational in infrastructure, convenient to use is safe, low cost, simple and convenient construction, wide application scope, The method has the characteristics of no pollution to the environment, conforms to the sustainable development of oilfield development, improves the fishing success rate, prolongs the workover period, can greatly improve the water injection efficiency of an oilfield operation area, improves the fishing success rate, reduces multiple times of construction and reduces the cost, can reduce the workover rate by about 50 percent aiming at the workover caused by the problems of blockage and scaling of an eccentric separate injection well and the like, and greatly reduces the workover cost.

As shown in fig. 1-3, the swivel joint assembly includes a joint sleeve body 10, a joint rod body 11 and an adapter 12, an upper end connecting portion of the swivel joint assembly is a joint sleeve thread counterbore 13 disposed at an upper end of the joint sleeve body 10, an internal thread of the joint sleeve thread counterbore 13 is capable of matching with an external thread at a lower end of a grappling joint 3 of a grappling device, a joint sleeve through hole 14 is disposed at a center of a bottom surface of the joint sleeve thread counterbore 13, the joint rod body 11 includes a cylindrical joint rod head and a connecting rod body, a middle portion of a lower end of the joint rod head is connected with an upper end of the connecting rod body into a whole, the joint rod head is sleeved in the joint sleeve thread counterbore 13 and is capable of rotating, the connecting rod body passes through the joint sleeve through hole 14 and extends to a lower portion of the joint sleeve body 10, a joint cavity hole 15 along a vertical direction is disposed inside the adapter 12, the adapter 12 includes a swivel handle section and an external thread section, a lower end of the swivel handle section and an, the middle part of the wrench clamping groove 16 is provided with a joint upper pin hole 17, a connecting rod pin hole is arranged on a connecting rod body corresponding to the position of the joint upper pin hole 17, a joint lock pin is fixedly arranged in the joint upper pin hole 17 and the connecting rod pin hole, a joint external thread is arranged on the outer side of the lower part of the external thread section, a claw sleeve internal thread 18 matched with the joint external thread is arranged on the upper part of the inner wall of the salvaging claw sleeve 1, and the lower part of the external thread section is fixedly connected with the upper part of the salvaging claw sleeve 1 through the joint.

As shown in figure 1, the side wall of the middle part of the salvaging claw sleeve 1 is provided with a long round hole 19 with the long axis along the vertical direction, and the inner end of the long round hole 19 is communicated with the claw sleeve cavity 4. The provision of the oblong holes 19 has two functions: firstly, sundries entering the claw sleeve cavity 4 from the claw sleeve inlet can be discharged through the long round hole 19; secondly, a screwdriver extends into the claw sleeve cavity 4 through the long round hole 19, the plug or the adjustable water nozzle which can be fished in the claw sleeve cavity 4 can be slightly moved, and the use is more convenient.

As shown in fig. 1, a claw sleeve pin hole penetrating through the fishing claw sleeve 1 is formed in the upper portion of the fishing claw sleeve 1, a connector lower pin hole 20 is formed in an outer thread section corresponding to the claw sleeve pin hole, and claw sleeve lock pins are fixedly installed in the claw sleeve pin hole and the connector lower pin hole 20.

As shown in fig. 1, the upper part of the sleeve body 10 is provided with a sleeve pin hole penetrating through the sleeve body 10 from front to back, and a sleeve lock pin 21 capable of locking the sleeve body 10 and the lower end of the throwing and fishing device is fixedly installed in the sleeve pin hole.

As shown in fig. 2, the lower part of the salvaging claw sleeve 1 is provided with a rotary scraper which comprises a conical rotary scraper 22 or a wire brush scraper, and the upper end of the rotary scraper is provided with a boss chuck 24 which can be clamped in the elastic claw 6 at the lower part of the salvaging claw sleeve 1. Can cooperate fixture block 9 to realize the reliable locking of rotary scraper upper end boss dop 24 through claw cover spring 2, can scrape the dirt in the clearance eccentric water injection mandrel water injection well room through the rotary scraper, not only solved the problem that current oil pipe scraper can not solve, through adopting to scrape the scale removal before the scale removal to eccentric water injection mandrel water injection well not only can prevent serious scale formation, can also improve and drag for the success rate, prolong the well workover cycle, overcome the difficult problem that current conventional oil pipe scraper of eccentric branch injection well can not scrape the clearance eccentric water injection mandrel water injection well room. The water nozzle chamber of the water distributor is descaled and cleaned before scaling by the conical rotary scraper 22, so that the quantitative separate injection quality can be improved, and the problems of water nozzle blockage, no water injection and the like caused by serious scaling can be effectively prevented; the steel brush scraper can scrape and clean the inner wall of an oil pipe, and effectively removes dirt on the inner wall of the working barrel of the eccentric water distributor and the concentric water distributor.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present invention. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. The utility model provides an eccentric injection mandrel scraping tool which characterized in that: the fishing claw sleeve is characterized by comprising a rotary joint assembly, a fishing claw sleeve and a claw sleeve spring, wherein the upper end of the rotary joint assembly is provided with a connecting part which can be connected with the lower end of a fishing claw joint of a fishing device of an eccentric water distributor, the fishing claw sleeve is arranged at the lower part of the rotary joint assembly and can rotate around the axis of the rotary joint assembly, a claw sleeve cavity is arranged inside the fishing claw sleeve, the middle part of the bottom end of the fishing claw sleeve is provided with a claw sleeve inlet which is communicated with the claw sleeve cavity, the lower part of the fishing claw sleeve is uniformly distributed with at least two open grooves with downward openings, the open grooves are communicated with the claw sleeve cavity, the upper ends of the open grooves are positioned in the middle part of the fishing claw sleeve, the fishing claw sleeve between every two adjacent open grooves forms an elastic claw which can be opened outwards, the lower end of the fishing claw sleeve is provided with a claw tooth with the downward pointing, and a claw sleeve spring is arranged in the claw sleeve cavity, the upper end of the claw sleeve spring is tightly pressed at the lower end of the rotary joint assembly, and the lower end of the claw sleeve spring is tightly pressed at the upper part of the clamping block.

2. The eccentric water distributor scraping tool of claim 1, wherein: the rotary joint assembly comprises a joint sleeve body, a joint rod body and an adapter, wherein an upper end connecting part of the rotary joint assembly is a joint sleeve thread counter bore arranged at the upper end of the joint sleeve body, the internal thread of the joint sleeve thread counter bore can be matched with the external thread at the lower end of a fishing joint of a fishing device, a joint sleeve through hole is arranged at the center of the bottom surface of the joint sleeve thread counter bore, the joint rod body comprises a cylindrical joint rod head and a cylindrical connecting rod body, the middle part of the lower end of the joint rod head is connected with the upper end of the connecting rod body into a whole, the joint rod head is sleeved in the joint sleeve thread counter bore and can rotate, the connecting rod body penetrates through the joint sleeve through hole and extends to the lower part of the joint sleeve body, a vertical joint cavity hole is arranged in the adapter, the adapter comprises a rotary handle section and an outer thread section, the lower end of the rotary handle section and the upper end of the outer thread section are connected into a whole, the lower part, the connecting rod body corresponding to the pin hole on the joint is provided with a connecting rod pin hole, the joint pin hole and the connecting rod pin hole are internally and fixedly provided with a joint lock pin, the outer side of the lower part of the outer screw section is provided with a joint external thread, the upper part of the inner wall of the salvaging claw sleeve is provided with a claw sleeve internal thread matched with the joint external thread, and the lower part of the outer screw section is fixedly connected with the upper part of the salvaging claw sleeve through the joint external thread and the claw sleeve internal.

3. An eccentric water distributor scraping tool as claimed in claim 1 or 2 wherein: a long circular hole with a long axis along the vertical direction is formed in the side wall of the middle part of the salvaging claw sleeve, and the inner end of the long circular hole is communicated with the cavity of the claw sleeve; or/and the upper part of the salvaging claw sleeve is provided with a claw sleeve pin hole which penetrates through the salvaging claw sleeve from front to back, the outer thread section corresponding to the claw sleeve pin hole is provided with a joint lower pin hole, and claw sleeve lock pins are fixedly arranged in the claw sleeve pin hole and the joint lower pin hole.

4. An eccentric water distributor scraping tool as claimed in claim 1 or 2 wherein: the upper part of the connecting sleeve body is provided with a connecting sleeve pin hole which penetrates through the connecting sleeve body from front to back, and a connecting sleeve lock pin which can lock the connecting sleeve body and the lower end of the throwing and fishing device is fixedly arranged in the connecting sleeve pin hole.

5. The eccentric water distributor scraping tool of claim 3, wherein: the upper part of the connecting sleeve body is provided with a connecting sleeve pin hole which penetrates through the connecting sleeve body from front to back, and a connecting sleeve lock pin which can lock the connecting sleeve body and the lower end of the throwing and fishing device is fixedly arranged in the connecting sleeve pin hole.

6. An eccentric water distributor scraping tool as claimed in claim 1 or 2 wherein: the rotary scraper is installed to the lower part of salvaging claw cover, the rotary scraper includes rotatory scraper of toper or wire brush scraper, and the upper end of rotary scraper is equipped with the boss dop that can the dress card in salvaging claw cover lower part elasticity jack catch.

7. The eccentric water distributor scraping tool of claim 3, wherein: the rotary scraper is installed to the lower part of salvaging claw cover, the rotary scraper includes rotatory scraper of toper or wire brush scraper, and the upper end of rotary scraper is equipped with the boss dop that can the dress card in salvaging claw cover lower part elasticity jack catch.

8. The eccentric water distributor scraping tool of claim 4 wherein: the rotary scraper is installed to the lower part of salvaging claw cover, the rotary scraper includes rotatory scraper of toper or wire brush scraper, and the upper end of rotary scraper is equipped with the boss dop that can the dress card in salvaging claw cover lower part elasticity jack catch.

9. The eccentric water distributor scraping tool of claim 5, wherein: the rotary scraper is installed to the lower part of salvaging claw cover, the rotary scraper includes rotatory scraper of toper or wire brush scraper, and the upper end of rotary scraper is equipped with the boss dop that can the dress card in salvaging claw cover lower part elasticity jack catch.