CN105275419A - Petroleum drilling equipment - Google Patents
Petroleum drilling equipment Download PDFInfo
- Publication number
- CN105275419A CN105275419A CN201410357662.4A CN201410357662A CN105275419A CN 105275419 A CN105275419 A CN 105275419A CN 201410357662 A CN201410357662 A CN 201410357662A CN 105275419 A CN105275419 A CN 105275419A
- Authority
- CN
- China
- Prior art keywords
- expansion tube
- expansion
- petroleum drilling
- expansion pipe
- block
- 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- Withdrawn
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Abstract
The invention discloses petroleum drilling equipment comprising an expansion pipe; an expansion cone is arranged in the expansion pipe; a connector assembly is arranged between the expansion pipe and the expansion cone; the end of the expansion pipe is provided with bottom stopper; one end of the bottom stopper is arranged outside the expansion pipe; an elastic claw is arranged between the other end, positioned in the expansion pipe, of the bottom stopper and the expansion pipe; the elastic claw is provided with a wedge plate. The petroleum drilling equipment is good in sealing effect, and strong in anti-compression capability.
Description
Technical field
The present invention relates to a kind of petroleum drilling and mining apparatus.
Background technology
Oil is one of important energy of society, in production oil process, casing damaged well middle sleeve is once damage distortion, the direct normal production affecting oil-water well, even can cause this oil-water well to stop production, and the serious oil-water well that can make is scrapped, along with the prolongation of oilfield exploitation time, Casing Failure deformed damaged phenomenon is on the rise, and therefore, the repair of casing damaged well casing failure has become an important topic in oilfield development process.The type of casing failure is broadly divided into four kinds: be out of shape, break, bad break and corrosion failure, for many years, types of damage for above four kinds of sleeve pipes has carried out a series of research, have employed the sleeve pipe of multiple method to casing damaged well to repair, because the reparation difficulty of casing damaged well sleeve pipe is large, so unsatisfactory to the repairing effect of casing damaged well sleeve pipe, casing damaged well run through casing size after reparation reduces, sealing is poor, anti-pressure ability is more weak, there will be problem again after using one end time, need to re-start reparation, add cost of production.
Summary of the invention
For solving above-mentioned existing shortcoming, main purpose of the present invention is the petroleum drilling and mining apparatus providing a kind of practicality, and good sealing effect, anti-pressure ability is strong.
For reaching above-described object, following technical scheme taked by a kind of petroleum drilling and mining apparatus of the present invention:
A kind of petroleum drilling and mining apparatus, comprise expansion tube, it is characterized in that, expansion cone is provided with in described expansion tube, be provided with connector assembly between expansion tube and expansion cone, the end of expansion tube is provided with end block, and one end of block of the described end is positioned at the outside of expansion tube, be provided with elastic claw between one end in expansion tube of end block and expansion tube, described elastic claw is provided with wedge.
Block inside is provided with through hole at the described end, and one end that end block is positioned at outside expansion tube is provided with external screw thread, is provided with sealing ring between end block and expansion tube.
Adopt the present invention of as above technical scheme, there is following beneficial effect:
Expansion pipe column is made to have higher sealing; make expansion tube have stronger anti-pressure ability owing to adding end block in the end of expansion tube simultaneously; and play the effect of protection expansion tube; prevent expansion tube from needing to change the problem of whole piece expansion tube because end is impaired; save material, reduce cost of production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of petroleum drilling and mining apparatus of the present invention, comprise expansion tube 1, expansion cone 3 is provided with in expansion tube 1, connector assembly 2 is provided with between expansion tube 1 and expansion cone 3, the end of expansion tube 1 is provided with end block 4, one end of end block 4 is positioned at the outside of expansion tube 1, elastic claw 6 is provided with between one end in expansion tube 1 of end block 4 and expansion tube 1, elastic claw 6 is provided with wedge 7, end block 4 inside is provided with through hole 5, one end that end block 4 is positioned at outside expansion tube 1 is provided with external screw thread, be convenient to install or connect, sealing ring 8 is provided with between end block 4 and expansion tube 1, sealing ring 8 has two, make the sealing effectiveness of expansion tube 1 better.
Claims (2)
1. a petroleum drilling and mining apparatus, comprise expansion tube, it is characterized in that, expansion cone is provided with in described expansion tube, be provided with connector assembly between expansion tube and expansion cone, the end of expansion tube is provided with end block, and one end of block of the described end is positioned at the outside of expansion tube, be provided with elastic claw between one end in expansion tube of end block and expansion tube, described elastic claw is provided with wedge.
2. a kind of petroleum drilling and mining apparatus according to claim 1, is characterized in that, block inside, the described end is provided with through hole, and one end that end block is positioned at outside expansion tube is provided with external screw thread, is provided with sealing ring between end block and expansion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357662.4A CN105275419A (en) | 2014-07-25 | 2014-07-25 | Petroleum drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357662.4A CN105275419A (en) | 2014-07-25 | 2014-07-25 | Petroleum drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105275419A true CN105275419A (en) | 2016-01-27 |
Family
ID=55145151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410357662.4A Withdrawn CN105275419A (en) | 2014-07-25 | 2014-07-25 | Petroleum drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105275419A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869108A (en) * | 2018-10-22 | 2019-06-11 | 中国石油集团渤海钻探工程有限公司 | A kind of broken well expandable casing patching device and its subsidy method |
-
2014
- 2014-07-25 CN CN201410357662.4A patent/CN105275419A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869108A (en) * | 2018-10-22 | 2019-06-11 | 中国石油集团渤海钻探工程有限公司 | A kind of broken well expandable casing patching device and its subsidy method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160127 |