CN113216903A - Mechanical unfreezing non-rotating casing scraper - Google Patents
Mechanical unfreezing non-rotating casing scraper Download PDFInfo
- Publication number
- CN113216903A CN113216903A CN202110569072.8A CN202110569072A CN113216903A CN 113216903 A CN113216903 A CN 113216903A CN 202110569072 A CN202110569072 A CN 202110569072A CN 113216903 A CN113216903 A CN 113216903A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- scraper
- mechanical
- rotating casing
- lock sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010008 shearing Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a mechanical unfreezing non-rotating casing pipe scraper which comprises a body, an upper lock sleeve, a lower lock sleeve, a left-handed scraper, a right-handed scraper and a lower connector, wherein the sleeve is arranged on the outer side of the body, a bearing is arranged between the sleeve and the body, the right-handed scraper is fixed on the upper portion of the sleeve through the upper lock sleeve and a connecting sleeve, the left-handed scraper is fixed on the lower portion of the sleeve through the lower lock sleeve and the connecting sleeve, the lower end of the body is fixedly connected with the lower connector, a shearing sleeve is arranged between the body and the lower lock sleeve, a shearing ring is arranged between the body and the lower connector, the shearing sleeve is connected with the shearing ring through a shearing pin, the lower end of the lower lock sleeve is provided with clamping teeth, and the upper end of the lower connector is provided with tooth grooves opposite to the clamping teeth. The scraper of the mechanical unfreezing non-rotating casing scraper and the body can rotate freely relative to each other, the body rotates along with the pipe column in the normal scraping process, the scraper cannot rotate, the casing is prevented from being damaged, and the multiple-in-one operation of completing multiple processes in one pipe can be realized by combining a drifting tool, a drilling plug tool and a cleaning tool.
Description
Technical Field
The invention relates to the technical field of petroleum drilling, oil testing and gas testing, in particular to a mechanical unfreezing non-rotating casing scraper.
Background
The casing scraper is used for cleaning oil, cement blocks, cement sheath, hardened mud, paraffin, various salt crystals and sediments on the inner wall of a gas field shaft. And can also remove the matters such as iron oxide and the like generated after the perforation burrs and the sleeve are rusted. So that the inner wall of the shaft is clean and regular and is smooth without obstruction, the downhole tool can be smoothly put in, and the success rate of the operation is improved. The scraper of the existing scraper can rotate along with the pipe column body, so that a sleeve is easily damaged, and the service life of the scraper is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a mechanical unfreezing non-rotating sleeve scraper, which can prevent the scraper from damaging a sleeve and prolong the service life of equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a mechanical type can unfreeze nonrotating sleeve scraper, includes the body, goes up lock sleeve, lock sleeve, levogyration scraper, dextrorotation scraper and lower clutch down, the sleeve is installed in the body outside, be equipped with the bearing between sleeve and the body, dextrorotation scraper passes through lock sleeve and adapter sleeve to be fixed on sleeve upper portion, levogyration scraper passes through lock sleeve and adapter sleeve down to be fixed in the sleeve lower part, the lower extreme of body with lower clutch fixed connection, be equipped with the shearing cover between body and the lower lock sleeve, be equipped with the shearing ring between body and the lower clutch, the shearing cover passes through the shearing pin with the shearing ring and is connected, the lower extreme of lock sleeve is equipped with the latch down, the upper end of lower clutch is equipped with the tooth's socket relative with the latch.
In the above scheme, the upper lock sleeve is provided with a right-handed righting device.
In the scheme, the lower lock sleeve is provided with the left-handed centering device.
In the above scheme, the sleeve is the split structure, through the bolt butt clamp installation on the body.
In the above scheme, the adapter sleeve is the split structure, through the screw clamp installation on the body.
In the scheme, the right-handed scraper groove and the left-handed scraper groove are formed in the outer portion of the sleeve, and two groups of bearing grooves are formed in the inner portion of the sleeve.
In the scheme, springs are arranged below the left-handed scraper and the right-handed scraper.
In the above scheme, a first O-ring seal is arranged between the body and the upper locking sleeve.
In the above scheme, a second O-shaped sealing ring is arranged between the body and the lower lock sleeve.
In the above scheme, a third O-shaped sealing ring is arranged between the body and the lower joint.
The mechanical unfreezing non-rotating casing scraper has the following beneficial effects:
1. the scraper of the mechanical unfreezing non-rotating casing scraper and the body can rotate freely relative to each other, the body rotates along with the pipe column in the normal scraping process, the scraper cannot rotate, the casing is prevented from being damaged, and the multiple-in-one operation of completing multiple processes in one pipe can be realized by combining a drifting tool, a drilling plug tool and a cleaning tool.
2. When the downhole complex condition is met, the pipe column is directly lifted to cut off the shear pin, the synchronous rotation of the scraper and the body is realized, and the purpose of releasing the jam is achieved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic illustration of the construction of a mechanically unclippable non-rotating casing scraper of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a partial view of an unblocking mechanism of a mechanically unblocking non-rotating casing scraper;
FIG. 4 is a schematic view of a mechanical unlatching non-rotating casing scraper prior to actuation of the unlatching mechanism;
fig. 5 is a schematic view of a mechanical unlatching non-rotating casing scraper after activation of the unlatching mechanism.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the present invention is a mechanically unclutchable non-rotating casing scraper. Comprises a body 1, an upper lock sleeve 2, a sleeve 7, a lower lock sleeve 13, a left-handed scraper 11, a right-handed scraper 9 and a lower joint 20.
The sleeve 7 is arranged outside the body 1, and a bearing is arranged between the sleeve 7 and the body 1. The right-handed scraper 9 is fixed on the upper part of the sleeve 7 through the upper lock sleeve 2 and the connecting sleeve 10, and the left-handed scraper 11 is fixed on the lower part of the sleeve 7 through the lower lock sleeve 13 and the connecting sleeve 10. The lower end of the body 1 is fixedly connected with the lower joint 20 through a screw 18. A shearing sleeve 14 is arranged between the body 1 and the lower lock sleeve 13, a shearing ring 16 is arranged between the body 1 and the lower joint 20, the shearing sleeve 14 is connected with the shearing ring 16 through a shearing pin 17, the lower end of the lower lock sleeve 13 is provided with a latch, and the upper end of the lower joint 20 is provided with a tooth socket opposite to the latch.
The bearing comprises bearing needle 5, bearing needle cover 6, wear ring 4, and scraper and body 1 can freely rotate relatively, can not harm the sleeve pipe, can combine drifting, bore stopper, cleaning means, realizes the many unification operations of a lot of processes are accomplished to a pipe to can realize scraping the higher drilling speed of wall ware than ordinary.
As shown in fig. 3-5, if the jam-releasing mechanism composed of the lower lock sleeve 13, the shear sleeve 14, the shear ring 16, the shear pin 17 and the lower joint 20 is encountered during working, the pipe column is lifted directly to shear the shear pin 17, and simultaneously the pipe column body 1 is rotated, the latch of the lower lock sleeve 13 is engaged with the tooth socket on the lower joint 20, so that the synchronous rotation of the scraper and the body 1 is realized to achieve the goal of releasing the jam.
Furthermore, the upper locking sleeve 2 is provided with a right-handed righting device.
Furthermore, a left-handed centering device is arranged on the lower lock sleeve 13.
Further, sleeve 7 is split structure, installs on body 1 through 8 butt clamps of bolt.
Further, the connecting sleeve 10 is of a split structure and is installed on the body 1 through screw butt clamp.
Further, sleeve 7 outside is equipped with dextrorotation scraper 9 grooves and levogyration scraper 11 grooves, and sleeve 7 is inside to be equipped with two sets of bearing grooves.
Further, a spring 12 is arranged below the left-handed scraper 11 and the right-handed scraper 9, and the spring 12 enables the left-handed scraper 11 and the right-handed scraper 9 to be in an outward ejection state.
Further, a first O-shaped sealing ring 3 is arranged between the body 1 and the upper locking sleeve 2. A second O-shaped sealing ring 15 is arranged between the body 1 and the lower lock sleeve 13. A third O-ring 19 is arranged between the body 1 and the lower joint 20.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a mechanical type can unfreeze nonrotating sleeve scraper, a serial communication port, include the body, go up lock sleeve, lock sleeve, levogyration scraper, dextrorotation scraper and lower clutch down, the sleeve is installed in the body outside, be equipped with the bearing between sleeve and the body, dextrorotation scraper passes through lock sleeve and adapter sleeve to be fixed on sleeve upper portion, levogyration scraper passes through lock sleeve and adapter sleeve down to be fixed in the sleeve lower part, the lower extreme of body with lower clutch fixed connection, be equipped with shearing sleeve between body and the lower lock sleeve, be equipped with the shearing ring between body and the lower clutch, shearing sleeve and shearing ring are through cutting the pin junction, the lower extreme of lock sleeve is equipped with the latch down, the upper end of lower clutch is equipped with the tooth's socket relative with the latch.
2. The mechanical unchucking non-rotating casing scraper of claim 1 wherein the upper jacket has a right-handed centering device.
3. The mechanical unchukable non-rotating casing scraper of claim 1, wherein the lower lock sleeve is provided with a left-handed centering device.
4. The mechanical unclippable non-rotating casing scraper of claim 1 wherein said sleeve is a split construction and is mounted to the body by a bolt clamp.
5. The mechanical unclippable non-rotating casing scraper of claim 1 wherein said adapter sleeve is a split construction and is mounted to the body by a screw clamp.
6. The mechanical unclippable non-rotating casing scraper of claim 1 wherein said sleeve has right and left hand scraper grooves on the exterior and two sets of bearing grooves on the interior.
7. The mechanical unclippable non-rotating sleeve shaver of claim 1 wherein springs are provided below said left-hand and right-hand scrapers.
8. The mechanical unclippable non-rotating casing scraper of claim 1 wherein a first O-ring seal is disposed between said body and said upper bushing.
9. The mechanical unclippable non-rotating casing scraper of claim 1 wherein a second O-ring seal is disposed between the body and the lower lock sleeve.
10. The mechanical unchukable non-rotating casing scraper of claim 1, wherein a third O-ring seal is provided between the body and the lower joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110569072.8A CN113216903A (en) | 2021-05-25 | 2021-05-25 | Mechanical unfreezing non-rotating casing scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110569072.8A CN113216903A (en) | 2021-05-25 | 2021-05-25 | Mechanical unfreezing non-rotating casing scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113216903A true CN113216903A (en) | 2021-08-06 |
Family
ID=77098254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110569072.8A Withdrawn CN113216903A (en) | 2021-05-25 | 2021-05-25 | Mechanical unfreezing non-rotating casing scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113216903A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010022223A1 (en) * | 2000-02-10 | 2001-09-20 | Howlett Paul David | Downhole cleaning tool with shear clutch |
| CN202031544U (en) * | 2011-04-06 | 2011-11-09 | 中国海洋石油总公司 | High-efficiency rotating tube scraper |
| CN105604523A (en) * | 2015-12-25 | 2016-05-25 | 贵州高峰石油机械股份有限公司 | Method for improving pipe scraper and pipe scraper |
| CN205618133U (en) * | 2016-05-17 | 2016-10-05 | 牡丹江石油工具有限责任公司 | Spring rotary casing scraper |
| CN206581927U (en) * | 2017-03-02 | 2017-10-24 | 济源华新石油机械有限公司 | A kind of down-hole casing inwall scraper |
| CN110080688A (en) * | 2019-03-25 | 2019-08-02 | 中国石油化工股份有限公司 | A kind of slim hole completion tubing string and construction method |
| CN210087297U (en) * | 2018-11-26 | 2020-02-18 | 中海油能源发展股份有限公司 | Rotary pipe scraper capable of releasing block |
| CN213116264U (en) * | 2020-09-11 | 2021-05-04 | 天合石油集团汇丰石油装备股份有限公司 | Casing scraper with irrotational knife board |
-
2021
- 2021-05-25 CN CN202110569072.8A patent/CN113216903A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010022223A1 (en) * | 2000-02-10 | 2001-09-20 | Howlett Paul David | Downhole cleaning tool with shear clutch |
| CN202031544U (en) * | 2011-04-06 | 2011-11-09 | 中国海洋石油总公司 | High-efficiency rotating tube scraper |
| CN105604523A (en) * | 2015-12-25 | 2016-05-25 | 贵州高峰石油机械股份有限公司 | Method for improving pipe scraper and pipe scraper |
| CN205618133U (en) * | 2016-05-17 | 2016-10-05 | 牡丹江石油工具有限责任公司 | Spring rotary casing scraper |
| CN206581927U (en) * | 2017-03-02 | 2017-10-24 | 济源华新石油机械有限公司 | A kind of down-hole casing inwall scraper |
| CN210087297U (en) * | 2018-11-26 | 2020-02-18 | 中海油能源发展股份有限公司 | Rotary pipe scraper capable of releasing block |
| CN110080688A (en) * | 2019-03-25 | 2019-08-02 | 中国石油化工股份有限公司 | A kind of slim hole completion tubing string and construction method |
| CN213116264U (en) * | 2020-09-11 | 2021-05-04 | 天合石油集团汇丰石油装备股份有限公司 | Casing scraper with irrotational knife board |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210806 |
|
| WW01 | Invention patent application withdrawn after publication |