CN201068759Y - Shocking reversing stuck freeing salvaging pipe column - Google Patents
Shocking reversing stuck freeing salvaging pipe column Download PDFInfo
- Publication number
- CN201068759Y CN201068759Y CNU2007201172123U CN200720117212U CN201068759Y CN 201068759 Y CN201068759 Y CN 201068759Y CN U2007201172123 U CNU2007201172123 U CN U2007201172123U CN 200720117212 U CN200720117212 U CN 200720117212U CN 201068759 Y CN201068759 Y CN 201068759Y
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- drill pipe
- utility
- model
- drilling rod
- pipe
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Abstract
The utility model discloses a reversed jarring releasing salvage technology pipe column, which relates to an underground salvage apparatus. The utility model is proposed to solve the problems of a conventional straight well jarring releasing salvage technology pipe column that the transmission effect of the jolting force on a horizontal well is bad, and the jolting force cannot be transferred to the well bottom. One end of the salvaging apparatus (1) of the utility model is connected with one end of a safety joint (2), and the other end of the safety joint (2) is connected with one end of a slope drill rod (3), the other end of the slope drill pipe (3) is connected with one end of a weighted drill pipe (4), and the other end of the weighted drill pipe (4) is connected with the lower end of a drill pipe (5). The utility model not only prevents the scrapping of the pipe column, but also facilitates the effective transmission of the bit pressure and the force, at the same time, the resistance produced when contacting with the casing-pipe wall is rather small.
Description
Technical field
The utility model relates to a kind of down-hole fishing string.
Background technology
Because the particularity of horizontal well, the unfreezing fishing device of conventional straight well is (as movable tubing string, the well head jarring, common brill milling cover etc.) inapplicable, show that mainly the process pipe string in these technology structurally uses heavy weight drill pipe or drill collar in the bottom, bending section and horizontal segment gravity at horizontal well all act on the casing wall, not only do not have the effect of pressurization, and instead increase the mill resistance of tubing string, the jarring force transmission effect is poor, even can't be delivered to the shaft bottom at all and implement jarring releasing to junk, cause the incompatibility of jarring releasing fishing process tubing string on horizontal well of conventional straight well.
The utility model content
The purpose of this utility model is poor in order to solve conventional straight well jarring releasing fishing process tubing string jarring force transmission effect on horizontal well, can't be delivered to the problem in shaft bottom, and a kind of upside-down mounting jarring releasing fishing process tubing string is provided.
The utility model includes fishing tool 1, safety joint 2, slope drilling rod 3, heavy weight drill pipe 4 and drilling rod 5, one end of fishing tool 1 is connected with an end of safety joint 2, the other end of safety joint 2 is connected with an end of slope drilling rod 3, the other end of slope drilling rod 3 is connected with an end of heavy weight drill pipe 4, and the other end of heavy weight drill pipe 4 is connected with the lower end of drilling rod 5.
The utlity model has following beneficial effect: one, the utility model is to utilize the heavy weight drill pipe on the straight well section that whole tubing string is produced bigger the pressure of the drill, improves the transmission effect of power by the transfers of tubing string.Two, the slope drilling rod is used in bottom of the present utility model, has both prevented the scratching of tubing string, and it is less relatively again to conduct oneself with dignity, relative less with the mill resistance that the casing wall contact produces, simultaneously, the tie surface jarring further improves shock effect, has reduced the mill resistance, realizes the jarring releasing of junk is salvaged.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The specific embodiment one: see Fig. 1, present embodiment is made up of fishing tool 1, safety joint 2, slope drilling rod 3, heavy weight drill pipe 4 and drilling rod 5, one end of fishing tool 1 is connected with an end of safety joint 2, the other end of safety joint 2 is connected with an end of slope drilling rod 3, the other end of slope drilling rod 3 is connected with an end of heavy weight drill pipe 4, and the other end of heavy weight drill pipe 4 is connected with the lower end of drilling rod 5.Heavy weight drill pipe 4 is placed in the straight well section, heavy weight drill pipe 4 can produce bigger the pressure of the drill to whole tubing string, improve the transmission effect of power by the transfers of tubing string, slope drilling rod 3 times is at horizontal segment and bending section, can effectively prevent the scratching sleeve pipe, arrest fish after present embodiment is lowered to, the principle of utilizing inverted drill string to be easy to transmit the pressure of the drill is carried out activity, jarring, until unfreezing, after the unfreezing junk is pulled out.
The specific embodiment two: see Fig. 1, the difference of the present embodiment and the specific embodiment one is that it has increased universal joint 6, and slope drilling rod 3 is formed by two, is connected with universal joint 6 between two slope drilling rods 3.Universal joint 6 can increase the radius of curvature of slope drilling rod.
Present embodiment is aboveground application of Daqing oil field " state 78-flat 67 ", and result of use is good, success rate 100%.
Claims (2)
1. upside-down mounting jarring releasing fishing process tubing string, it includes fishing tool (1), safety joint (2), slope drilling rod (3), heavy weight drill pipe (4) and drilling rod (5), an end that it is characterized in that fishing tool (1) is connected with an end of safety joint (2), the other end of safety joint (2) is connected with an end of slope drilling rod (3), the other end of slope drilling rod (3) is connected with an end of heavy weight drill pipe (4), and the other end of heavy weight drill pipe (4) is connected with the lower end of drilling rod (5).
2. upside-down mounting jarring releasing fishing process tubing string according to claim 1 is characterized in that it also comprises universal joint (6), and slope drilling rod (3) is formed by two, is connected with universal joint (6) between two slope drilling rods (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172123U CN201068759Y (en) | 2007-10-17 | 2007-10-17 | Shocking reversing stuck freeing salvaging pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172123U CN201068759Y (en) | 2007-10-17 | 2007-10-17 | Shocking reversing stuck freeing salvaging pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068759Y true CN201068759Y (en) | 2008-06-04 |
Family
ID=39490139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201172123U Expired - Fee Related CN201068759Y (en) | 2007-10-17 | 2007-10-17 | Shocking reversing stuck freeing salvaging pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068759Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132925A (en) * | 2013-03-21 | 2013-06-05 | 西南石油大学 | Downhole motive driller capable of improving drill column stretching capacity |
-
2007
- 2007-10-17 CN CNU2007201172123U patent/CN201068759Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132925A (en) * | 2013-03-21 | 2013-06-05 | 西南石油大学 | Downhole motive driller capable of improving drill column stretching capacity |
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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: 20080604 Termination date: 20161017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |