CN204492727U - Pipe nipple repaired by the borehole wall - Google Patents
Pipe nipple repaired by the borehole wall Download PDFInfo
- Publication number
- CN204492727U CN204492727U CN201520155142.5U CN201520155142U CN204492727U CN 204492727 U CN204492727 U CN 204492727U CN 201520155142 U CN201520155142 U CN 201520155142U CN 204492727 U CN204492727 U CN 204492727U
- Authority
- CN
- China
- Prior art keywords
- lower contact
- top connection
- borehole wall
- pipe nipple
- repaired
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of borehole wall and repair pipe nipple, comprise the body of hollow cylindrical structure and be positioned at top connection, the lower contact at described body two ends, the diameter of described body is greater than described top connection and described lower contact, and the two ends of described body are respectively by conical surface transition extremely described top connection and described lower contact, the external surface of described body is evenly distributed with many slant edges, the two ends distribution of described slant edge extends to described top connection and described lower contact by slope along the described conical surface.The borehole wall in the utility model is repaired pipe nipple and can be prevented new eye in reaming process from occurring.
Description
Technical field
The utility model relates to oil drilling equipment field, repairs pipe nipple in particular to a kind of borehole wall.
Background technology
Along with increasing of Tarim Basin ultra-deep horizontal well, Ordovician system target zone limestone horizontal segment is constructed, and many places gamma value is higher, there is the lithology that shale content is higher.There is imbibition and occur undergauge, periodically peel off the phenomenon that collapses in this kind of lithology, causing that the resistance of construction mill is large, the difficulty that makes a trip, easily occurring bit freezing, even collapse and bury well, lower brill cannot pass through, and easily marks new eye in reaming process.Collapse once peeling off appears in high gamma well section, on put and put flushing and lose effect, light pressure slow-speed does not have drilling depth, and the continuous reaming of high the pressure of the drill easily marks new eye, and difficulty of construction is large, expend time in length, for a long time at the circulation of this well section, reaming, easily cause the borehole wall irregular, hole enlargement ratio exceeds standard, easy formation " pregnant " well, hides some dangers for next step construction.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of and can prevent the borehole wall that in reaming process, new eye occurs from repairing pipe nipple.
Therefore, the technical solution of the utility model is as follows:
Pipe nipple repaired by a kind of borehole wall, comprise the body of hollow cylindrical structure and be positioned at top connection, the lower contact at described body two ends, the diameter of described body is greater than described top connection and described lower contact, and the two ends of described body are respectively by conical surface transition extremely described top connection and described lower contact, the external surface of described body is evenly distributed with many slant edges, the two ends distribution of described slant edge extends to described top connection and described lower contact by slope along the described conical surface.
Wherein, the quantity of described slant edge can be four, and described slant edge is formed by tungsten steel block built-up welding.
In the utility model, top connection, lower contact, body and the conical surface are an entirety, and the diameter as the body of reparation part is greater than top connection and lower contact can improve intensity, and slant edge is for repairing the borehole wall, and the through hole of body central is hydrophthalmia.This pipe nipple solves the reaming difficulty that oil field height gamma well section causes due to hole collapse, easily mark a drilling well difficult problem for new eye, ensure that the smooth construction of the simulation drifting tubing string before formation testing, ensure that well is unimpeded, putting in place smoothly of tubing packer, for the time has been saved in drilling well, formation testing, improve benefit.Through field trial, this tool construction is simple, easy to use, successful, such as in a certain practice of construction operation, one well horizontal segment limestone formation is due to the instability of high gamma lithology, the once new well of twice appearance in reaming process, finally construct when reaming difficulty, the use of pipe nipple is repaired by the borehole wall in the utility model, ensure that the unimpeded of high gamma position, stop again to mark new eye, ensure that and singly hold up, twoly to hold up, four hold up the smooth of simulation drifting, put in place under tubing safety, whole construction safety is smooth, save the time, improve benefit, obtain the consistent favorable comment of relevant department and applying unit.
Accompanying drawing explanation
Fig. 1 is the structural representation repairing pipe nipple according to the borehole wall of the utility model embodiment.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, pipe nipple repaired by the borehole wall according to embodiment of the present utility model, comprise the body 4 of hollow cylindrical structure and be positioned at top connection 2, the lower contact 1 at described body 4 two ends, the diameter of described body 4 is greater than described top connection 2 and described lower contact 1, and the two ends of described body 4 transit to described top connection 2 and described lower contact 1 respectively by the conical surface 6, the external surface of described body 4 is evenly distributed with many slant edges 5, and the two ends distribution of described slant edge 4 extends to described top connection 2 and described lower contact 1 by slope 3 along the described conical surface 6.
Wherein, the quantity of described slant edge 5 can be four, and described slant edge 5 is formed by tungsten steel block built-up welding.
In the utility model, top connection 2, lower contact 1, body 4 and the conical surface 6 are an entirety, and the diameter as the body 4 of reparation part is greater than top connection 2 and lower contact 1 can improve intensity, and slant edge 5 is for repairing the borehole wall, and the through hole at body 4 center is hydrophthalmia.This pipe nipple solves the reaming difficulty that oil field height gamma well section causes due to hole collapse, easily mark a drilling well difficult problem for new eye, ensure that the smooth construction of the simulation drifting tubing string before formation testing, ensure that well is unimpeded, putting in place smoothly of tubing packer, for the time has been saved in drilling well, formation testing, improve benefit.Through field trial, this tool construction is simple, easy to use, successful, such as in a certain practice of construction operation, one well horizontal segment limestone formation is due to the instability of high gamma lithology, the once new well of twice appearance in reaming process, finally construct when reaming difficulty, the use of pipe nipple is repaired by the borehole wall in the utility model, ensure that the unimpeded of high gamma position, stop again to mark new eye, ensure that and singly hold up, twoly to hold up, four hold up the smooth of simulation drifting, put in place under tubing safety, whole construction safety is smooth, save the time, improve benefit, obtain the consistent favorable comment of relevant department and applying unit.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.
Claims (3)
1. pipe nipple repaired by a borehole wall, it is characterized in that, comprise the body (4) of hollow cylindrical structure and be positioned at the top connection (2) at described body (4) two ends, lower contact (1), the diameter of described body (4) is greater than described top connection (2) and described lower contact (1), and the two ends of described body (4) transit to described top connection (2) and described lower contact (1) respectively by the conical surface (6), the external surface of described body (4) is evenly distributed with many slant edges (5), the two ends distribution of described slant edge (4) extends to described top connection (2) and described lower contact (1) by slope (3) along the described conical surface (6).
2. pipe nipple repaired by the borehole wall according to claim 1, and it is characterized in that, the quantity of described slant edge (5) is four.
3. pipe nipple repaired by the borehole wall according to claim 1, and it is characterized in that, described slant edge (5) is formed by tungsten steel block built-up welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155142.5U CN204492727U (en) | 2015-03-18 | 2015-03-18 | Pipe nipple repaired by the borehole wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155142.5U CN204492727U (en) | 2015-03-18 | 2015-03-18 | Pipe nipple repaired by the borehole wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492727U true CN204492727U (en) | 2015-07-22 |
Family
ID=53572050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520155142.5U Expired - Fee Related CN204492727U (en) | 2015-03-18 | 2015-03-18 | Pipe nipple repaired by the borehole wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533180A (en) * | 2018-04-24 | 2018-09-14 | 中国海洋石油集团有限公司 | A kind of drilling engineering is with boring hole-drawing device and reaming method |
-
2015
- 2015-03-18 CN CN201520155142.5U patent/CN204492727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533180A (en) * | 2018-04-24 | 2018-09-14 | 中国海洋石油集团有限公司 | A kind of drilling engineering is with boring hole-drawing device and reaming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20200318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |