CN210087296U - Adjustable multifunctional shaft cleaning tool - Google Patents
Adjustable multifunctional shaft cleaning tool Download PDFInfo
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- CN210087296U CN210087296U CN201920519424.7U CN201920519424U CN210087296U CN 210087296 U CN210087296 U CN 210087296U CN 201920519424 U CN201920519424 U CN 201920519424U CN 210087296 U CN210087296 U CN 210087296U
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Abstract
The utility model belongs to the technical field of drilling and completion of oil and gas fields, and discloses an adjustable multifunctional shaft cleaning tool, which consists of a pipe column assembly, a cleaning assembly and a recovery assembly, wherein the pipe column assembly comprises an upper joint, an upper mandrel, a middle mandrel, a lower mandrel and a lower joint which are connected in sequence; the cleaning assembly comprises a steel brush sleeve, a shunt cylinder and a limiting sleeve which are sequentially connected, and a steel brush capable of freely rotating is arranged outside the steel brush sleeve; the recovery assembly comprises an upper recovery cylinder, a middle recovery cylinder, a lower recovery cylinder, a short section inner cylinder and a short section outer cylinder which are connected in sequence, wherein the upper recovery cylinder is suspended on the limiting sleeve and is provided with a circulation hole; the circulation hole is opened when the drill is drilled down, and the cleaning assembly is relatively displaced downwards relative to the recovery assembly when the drill is drilled up, so that the circulation hole is closed. The utility model can realize the cleaning of the shaft and the recovery function of the debris after the cleaning, thereby displaying the cleaning degree of the shaft; and the length of the mandrel and the recovery assembly can be adjusted according to well conditions, and the volume of the recovery pipe is adjusted, so that the tripping times are saved, and the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the oil gas field well drilling and completion, specific theory relates to a pit shaft burnisher.
Background
At present, in the Bohai sea area oil field well completion process, the well washing operation time is long and the efficiency is low due to the fact that a sleeve is not clean. Meanwhile, due to the fact that the sleeve is not cleaned in place, various problems such as stratum pollution, blocking of a sand prevention pipe column to be put in, setting of a packer in advance and the like are caused, operation efficiency is low, operation difficulty is increased, and operation cost is increased.
In addition, because the existing sleeve cleaning tool recovery cylinder is not adjustable, the sleeve needs to be frequently tripped out when being cleaned, and the operation time and the cost are increased.
SUMMERY OF THE UTILITY MODEL
Based on the effective sleeve cleaning tool, the aims of reducing stratum pollution, improving the cleaning degree of the sleeve and reducing the tripping times are fulfilled; the utility model provides an adjustable multifunctional shaft cleaning tool, which can not only clean the inner wall of a sleeve pipe through a steel brush when a drill is started and stopped, but also can recycle the cleaned waste into a recycling cylinder; the number of the mandrels and the recovery cylinders can be adjusted according to well conditions, the volume of the recovery pipe is adjusted, and the tripping times are reduced.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
an adjustable multifunctional shaft cleaning tool comprises a pipe column assembly, a cleaning assembly and a recovery assembly, wherein the cleaning assembly and the recovery assembly can generate relative displacement when being tripped out, and the pipe column assembly and the recovery assembly are relatively fixed;
the pipe column assembly comprises an upper joint, an upper mandrel, a middle mandrel, a lower mandrel and a lower joint which are fixedly connected in sequence from top to bottom;
the cleaning assembly comprises a steel brush sleeve, a shunt cylinder and a limiting sleeve which are fixedly connected from top to bottom in sequence; the steel brush is arranged outside the steel brush sleeve and is limited to rotate freely outside the steel brush sleeve up and down;
the recovery assembly comprises an upper recovery cylinder, a middle recovery cylinder, a lower recovery cylinder and a short section inner cylinder which are fixedly connected from top to bottom in sequence; the upper recovery cylinder is suspended on the limiting sleeve and limited by the limiting sleeve, so that the upper recovery cylinder can move upwards relative to the limiting sleeve but cannot move downwards; the upper recovery cylinder is provided with a circulating hole at a position below the limit sleeve, and the circulating hole moves to the inside of the limit sleeve after the upper recovery cylinder moves upwards relative to the limit sleeve;
thus, when the tool is in a drilling state, the cleaning assembly and the recovery assembly do not generate relative displacement, and the circulating hole is opened; when the tool is in a tripping state, the cleaning assembly is displaced downwards relative to the recovery assembly, and the circulating hole is closed;
a short section outer cylinder is arranged outside the short section inner cylinder, and recovery holes are formed in the short section outer cylinder and the short section inner cylinder; the short section outer cylinder and the short section inner cylinder are fixed through a positioning device; when the positioning device is locked, the recovery holes of the short section outer cylinder and the short section inner cylinder are staggered with each other; when the positioning device is opened, the short section outer cylinder can rotate relative to the short section inner cylinder, so that the short section outer cylinder is communicated with the recovery hole of the short section inner cylinder.
Further, the total length of the tool can be adjusted by adjusting the number of the middle mandrels and the number of the middle recycling cylinders.
Further, the upper joint, the upper mandrel, the middle mandrel, the lower mandrel and the lower joint are sequentially connected through threads from top to bottom and are fixed through pins.
Further, the steel brush sleeve, the shunt cylinder and the limiting sleeve are sequentially in threaded connection from top to bottom and are fixed through pins.
Furthermore, a rupture disc is fixedly mounted on the shunt cylinder.
Furthermore, go up the recovery section of thick bamboo, middle recovery section of thick bamboo, recovery section of thick bamboo down, nipple joint inner tube is by last to lower threaded connection in proper order and fixed through the pin.
Furthermore, the outer diameter of the upper part of the upper recovery cylinder is increased to form a boss, and the boss is arranged in the shunt cylinder above the limiting sleeve and cannot pass through the limiting sleeve.
The utility model has the advantages that:
the utility model has the advantages that the effective cleaning of the sleeve and the effective recovery function of the cleaned debris can be realized, so that the cleaning degree of the sleeve is displayed by the quantity of the recovered debris, the cleaning effect of the sleeve is further ensured, and the stratum pollution condition is reduced;
(II) utility model can realize to the tubular column assembly and retrieve the length adjustment of assembly according to the well condition, adjust the recovery tube volume to save the trip number of times, improve the operating efficiency, reduce the operating cost.
Drawings
Fig. 1 is a schematic structural view of a downhole state of an adjustable multi-functional well bore cleaning tool provided by the present invention;
fig. 2 is a schematic structural view of a tripping state of the adjustable multifunctional shaft cleaning tool provided by the present invention;
FIG. 3 is a schematic structural view of a shunt cylinder;
FIG. 4 is an enlarged view of a portion A of FIG. 1;
FIG. 5 is a partial enlarged view of portion B of FIG. 1;
fig. 6 is a schematic structural view of a recovery hole.
In the above figures: 1. the device comprises an upper joint, 2. an upper mandrel, 3. a middle mandrel, 4. a lower mandrel, 5. a lower joint, 6. a steel brush, 7. a steel brush sleeve, 8. a rupture disc, 9. a shunt cylinder, 10. a limiting sleeve, 11. an upper recovery cylinder, 12. a middle recovery cylinder, 13. a lower recovery cylinder, 14. an inner cylinder short section, 15. a short section outer cylinder, 16. a positioning device, 17. a circulation hole and 18. a recovery hole.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:
as shown in fig. 1 and 2, the present embodiment provides an adjustable multi-functional well cleaning tool, which mainly comprises a pipe string assembly, a cleaning assembly and a recovery assembly, wherein the cleaning assembly and the recovery assembly can be displaced relatively during tripping, and the pipe string assembly and the recovery assembly are relatively fixed.
The pipe string assembly comprises an upper joint 1, an upper mandrel 2, a middle mandrel 3, a lower mandrel 4 and a lower joint 5. The upper joint 1, the upper mandrel 2, the middle mandrel 3, the lower mandrel 4 and the lower joint 5 are sequentially in threaded connection from top to bottom, and all axial threaded connections are fixed through fixing pins.
The cleaning assembly comprises a steel brush 6, a steel brush sleeve 7, a rupture disc 8, a shunt cylinder 9 and a limiting sleeve 10. The lower part of the steel brush sleeve 7 is connected with a shunt cylinder 9 through threads, the lower part of the shunt cylinder 9 is connected with a limit sleeve 10 through threads, and the axial threaded connection is fixed through a fixing pin. The steel brush 6 is installed in steel brush cover 7 outside, and 6 upper ends of steel brush are spacing by the upper portion shaft shoulder axial of steel brush cover 7, and 6 lower extremes of steel brush are spacing by the up end axial of reposition of redundant personnel section of thick bamboo 9, make steel brush 6 can for steel brush cover 7 free rotation to form more comprehensive cleanness to the intraduct of cover. The rupture disk 8 is fixed on the shunt cylinder 9 through a nut and is used for breaking the rupture disk when excessive suction pressure is generated, and a new circulation channel is established. As shown in FIG. 3, a plurality of slots are uniformly arranged in the circumferential direction of the middle of the flow dividing cylinder 9, and when a drill bit is drilled, debris in a shaft enters the annular space between the flow dividing cylinder 8 and the tubular column assembly, and then liquid flows out through the slots of the flow dividing cylinder 9 to be deposited. The shunt cylinder 9 shunts through a slot, so that the processing cost is reduced on one hand, and the stability and the safety are also ensured on the other hand. After the limiting sleeve 10 is in threaded connection with the shunting cylinder 9, the upper end face of the limiting sleeve is used for limiting the upper recovery cylinder 11, so that the upper recovery cylinder 11 is suspended at the lower part of the cleaning assembly.
The recovery assembly comprises an upper recovery cylinder 11, a middle recovery cylinder 12, a lower recovery cylinder 13, a short section inner cylinder 14, a short section outer cylinder 15 and a positioning device 16. Go up recovery section of thick bamboo 11, middle recovery section of thick bamboo 12, lower recovery section of thick bamboo 13, nipple joint inner tube 14 threaded connection from top to bottom in proper order, and all axial threaded connection all fix through the dowel.
The utility model discloses a multi-functional pit shaft burnisher of adjustable nodal pattern, the total length of instrument is adjusted to the number that mandrel 3 and middle recovery section of thick bamboo 12 in the middle of the accessible increased simultaneously.
As shown in fig. 4, the outer diameter of the upper part of the upper recovery cylinder 11 is increased to form a boss, and the boss is mounted in the shunt cylinder 9 above the stop collar 10 and can not pass through the stop collar 10. When the upper recovery cylinder 11 moves downward relative to the stop collar 10, the lower end surface of the boss of the upper recovery cylinder 11 abuts against the upper end surface of the stop collar 10, so that the upper recovery cylinder 11 can move upward relative to the stop collar 10 and cannot move downward.
Two circulation holes 17 are symmetrically arranged on the side part of the middle section of the upper recovery cylinder 11, and the circulation holes 17 are used for enabling annular liquid to return upwards to form a circulation channel. When the tool is in a 'drilling down' state, the cleaning assembly and the recovery assembly do not generate relative displacement, the circulating hole 17 on the upper recovery cylinder 11 is positioned below the limiting sleeve 10, and the circulating hole 17 is in an open state. When the tool is in a 'tripping' state, the recovery assembly is displaced upwards relative to the cleaning assembly, the circulating hole 17 on the upper recovery cylinder 11 moves to a position within the limiting sleeve 10, and the circulating hole 17 is in a closed state.
As shown in fig. 5, a nipple outer cylinder 15 is externally arranged at the lower part of the nipple inner cylinder 14, the nipple inner cylinder 14 and the nipple outer cylinder 15 are fixed in position through a positioning device 16, and the positioning device 16 can be spring steel balls and the like. And after the nipple outer cylinder 15 is screwed outside the nipple inner cylinder 14, the nipple inner cylinder 14 is pressed tightly and forms interference fit with the lower mandrel 4. As shown in fig. 6, the pup joint inner cylinder 14 and the pup joint outer cylinder 15 are both provided with recovery holes 18, and when the positioning device 16 is locked, the recovery holes 18 of the pup joint inner cylinder 14 and the pup joint outer cylinder 15 are staggered and not communicated; after the positioning device 16 is opened, the pup joint outer cylinder 15 is rotated relative to the pup joint inner cylinder 14, so that the recovery holes 18 of the pup joint inner cylinder 14 and the pup joint outer cylinder 15 are aligned and communicated with each other, and recovered objects can be led out through the recovery holes 18.
The utility model discloses a multi-functional pit shaft burnisher of adjustable nodal pattern, its theory of operation is:
the number of intermediate mandrels 3 and intermediate recovery cartridges 12 is determined by analyzing the well pattern and casing cleanliness before the tool is used, thereby reducing tripping times.
When the tool is in a drilling-down state in the use process of the tool, the cleaning assembly and the recovery assembly do not generate relative displacement, and the circulating hole 17 is in an open state; the annular liquid can return upwards through the circulation hole 17 to form a circulation channel; when the tool is in a 'tripping' state, the cleaning assembly and the recovery assembly are displaced relatively, the circulation hole 17 is closed, and the steel brush 6 cleans the internal organs of the shaft and enters the recovery assembly. In the tool tripped condition, if excessive suction pressure is generated, rupture disc 8 is broken and a new circulation path is established.
After the tool goes out of the well, the positioning device 16 is opened, the recovery hole 18 is opened, and the recovered object is taken out to finish cleaning, filtering and recovering.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various changes without departing from the spirit and the scope of the invention as claimed.
Claims (7)
1. An adjustable multifunctional shaft cleaning tool is characterized by comprising a pipe column assembly, a cleaning assembly and a recovery assembly, wherein the cleaning assembly and the recovery assembly can generate relative displacement when being tripped out, and the pipe column assembly and the recovery assembly are relatively fixed;
the pipe column assembly comprises an upper joint, an upper mandrel, a middle mandrel, a lower mandrel and a lower joint which are fixedly connected in sequence from top to bottom;
the cleaning assembly comprises a steel brush sleeve, a shunt cylinder and a limiting sleeve which are fixedly connected from top to bottom in sequence; the steel brush is arranged outside the steel brush sleeve and is limited to rotate freely outside the steel brush sleeve up and down;
the recovery assembly comprises an upper recovery cylinder, a middle recovery cylinder, a lower recovery cylinder and a short section inner cylinder which are fixedly connected from top to bottom in sequence; the upper recovery cylinder is suspended on the limiting sleeve and limited by the limiting sleeve, so that the upper recovery cylinder can move upwards relative to the limiting sleeve but cannot move downwards; the upper recovery cylinder is provided with a circulating hole at a position below the limit sleeve, and the circulating hole moves to the inside of the limit sleeve after the upper recovery cylinder moves upwards relative to the limit sleeve;
thus, when the tool is in a drilling state, the cleaning assembly and the recovery assembly do not generate relative displacement, and the circulating hole is opened; when the tool is in a tripping state, the cleaning assembly is displaced downwards relative to the recovery assembly, and the circulating hole is closed;
a short section outer cylinder is arranged outside the short section inner cylinder, and recovery holes are formed in the short section outer cylinder and the short section inner cylinder; the short section outer cylinder and the short section inner cylinder are fixed through a positioning device; when the positioning device is locked, the recovery holes of the short section outer cylinder and the short section inner cylinder are staggered with each other; when the positioning device is opened, the short section outer cylinder can rotate relative to the short section inner cylinder, so that the short section outer cylinder is communicated with the recovery hole of the short section inner cylinder.
2. The adjustable multi-functional wellbore cleaning tool of claim 1, wherein the overall tool length is adjustable by adjusting the number of intermediate mandrels and the number of intermediate recovery cartridges.
3. The adjustable multi-function wellbore cleaning tool of claim 1, wherein said upper sub, said upper mandrel, said intermediate mandrel, said lower sub are threaded in sequence from top to bottom and secured by a dowel.
4. The adjustable multi-functional well bore cleaning tool of claim 1, wherein the steel brush sleeve, the shunt cylinder, and the stop collar are sequentially threaded from top to bottom and fixed by a pin.
5. The adjustable multi-functional wellbore cleaning tool of claim 1, wherein a rupture disc is fixedly mounted to the diverter cartridge.
6. The adjustable multi-functional well bore cleaning tool of claim 1, wherein the upper recovery cylinder, the middle recovery cylinder, the lower recovery cylinder, and the nipple inner cylinder are sequentially threaded from top to bottom and secured by a pin.
7. The adjustable multi-functional well bore cleaning tool of claim 1, wherein the upper recovery section of the tubing has an increased outer diameter to form a protrusion that fits inside the flow manifold above the stop collar and cannot pass through the stop collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519424.7U CN210087296U (en) | 2019-04-16 | 2019-04-16 | Adjustable multifunctional shaft cleaning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519424.7U CN210087296U (en) | 2019-04-16 | 2019-04-16 | Adjustable multifunctional shaft cleaning tool |
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| Publication Number | Publication Date |
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| CN210087296U true CN210087296U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920519424.7U Active CN210087296U (en) | 2019-04-16 | 2019-04-16 | Adjustable multifunctional shaft cleaning tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720085A (en) * | 2020-06-30 | 2020-09-29 | 合力（天津）能源科技股份有限公司 | Adjustable well trimmer step by step |
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2019
- 2019-04-16 CN CN201920519424.7U patent/CN210087296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720085A (en) * | 2020-06-30 | 2020-09-29 | 合力（天津）能源科技股份有限公司 | Adjustable well trimmer step by step |
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