CN202914011U - Drill grinding locking fishing tool for oil gas well - Google Patents
Drill grinding locking fishing tool for oil gas well Download PDFInfo
- Publication number
- CN202914011U CN202914011U CN 201220567077 CN201220567077U CN202914011U CN 202914011 U CN202914011 U CN 202914011U CN 201220567077 CN201220567077 CN 201220567077 CN 201220567077 U CN201220567077 U CN 201220567077U CN 202914011 U CN202914011 U CN 202914011U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- gas well
- fishing tool
- central spindle
- cone
- 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 - Lifetime
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Abstract
The utility model discloses a drill grinding locking fishing tool for an oil gas well and belongs to the manufacture technical field of subsurface tool of oil and natural gas industry. The drill grinding locking fishing tool for the oil gas well comprises a central spindle, a cone, a claw-flipping type cava, a spring and an upper connector, wherein the cone is sleeved into the central spindle and fixed on the central spindle, the claw-flipping type cava is sleeved into the central spindle, the spring is installed inside a ring-shaped space between the upper portion of the claw-flipping cava and the central spindle, the upper connector is installed in the upper portion of the central spindle. The drill grinding locking fishing tool for the oil gas well is simple in structure and low in cost. When a hanging packer is drilled and grinded, a pipe string in the lower portion can be locked effectively, and the pipe string falling into an open-hole section can be avoided after the hanging packer in the upper portion is grinded and broken up.
Description
Technical field
The utility model relates to a kind of being lowered to for the Oil/gas Well instrument and meets the downhole tool device that blocks accident treatment midway, belongs to the manufacturing technology field of industrial gas oil downhole tool.
Background technology
After the horizontal well bore hole staged fracturing acidifying instrument independent research success, make the exploitation of horizontal well obtain at home large-scale development.Although horizontal well bore hole staged fracturing acidifying instrument has been considered the Various Complex situation that the down-hole may run into as much as possible at the beginning of design, but because the appearance of down hole problem has Unpredictability, hanging packer might occur occur unexpected premature setting or suspension in the process of delivering to down design attitude, if treatment measures are improper, will bring Oil/gas Well the serious consequence such as to scrap.In order to tackle a kind of so accidental on-the-spot complex situations, need design a kind of supporting brill mill, fishing tool for hanging packer, thereby can be when being necessary by boring mill, salvaging hanging packer, effective processing after realization sets or hangs horizontal well tool tubular column accident is reduced to minimum with loss.Usually the hanging packer bottom also is connected with km tool pipe string on the hundreds of, opens hanging packer rear lower tool pipe string and falls into barefoot interval for preventing mill, need to pin lower tool pipe string when boring mill.
Through retrieval, publication number is CN201972642U, the Chinese patent literature that open day is on September 14th, 2011 discloses a kind of packer fishing tool, by connector, cylindrical shell, bailer grab forms, connector is threaded with cylindrical shell top, bailer grab is installed in the cylindrical shell, and the bailer grab bottom is outer conical surface, and the lower end external diameter is little, the bottom is internal conical surface in the cylindrical shell, bottom diameter is little, outer conical surface, the tapering of internal conical surface is identical, and the make-up screw thread is arranged at the bottom in the bailer grab, the bailer grab bottom is milled with open slot, can swell behind the bailer grab bottom contact Y445-114 packer top of fish, Y445-114 packer top of fish can enter in the bailer grab, after Y445-114 packer top of fish enters in the bailer grab, bailer grab restores to the original state, the make-up screw thread of bottom and the screw thread on the Y445-114 packer top of fish are harmonious in the bailer grab, pull out after can connecting, therefore, the utility model by under put and just carry and the Y445-114 packer can be pulled out, simple to operate, fishing success ratio is high, has significant economic benefit.
But the prior art take above-mentioned patent documentation as representative, its structure are comparatively complicated, and cost is higher.
Summary of the invention
For solving existing technical problem in the above-mentioned prior art, the utility model proposes a kind of Oil/gas Well with boring mill locking fishing tool, the utility model is simple in structure, with low cost, when boring the mill hanging packer, can effectively pin the lower tube string, can prevent that mill from leaving upper suspension packer rear lower pipe string and fall into barefoot interval.
The utility model is by adopting following technical proposals to realize:
A kind of Oil/gas Well is with boring mill locking fishing tool, it is characterized in that: comprise mandrel, cone, bullet pawl formula slips, spring and top connection, wherein, cone is inserted in mandrel and is fixed on the mandrel, play pawl formula slips and be inserted in mandrel, spring fitting is in the annular space that plays between pawl formula slips top and mandrel, and top connection is installed in mandrel top.
Also include guide shoe, guide shoe is installed in the mandrel bottom, is threaded connection.
Described cone is fixed in the cannelure on the mandrel by shear pin.
Compared with prior art, the beneficial effects of the utility model show:
1, the utility model adopts the brill mill locking fishing tool that mandrel, cone, bullet pawl formula slips, spring and top connection form, simple in structure, with low cost, when boring the mill hanging packer, can effectively pin the lower tube string, can prevent that mill from leaving upper suspension packer rear lower pipe string and fall into barefoot interval.
2, the utility model includes the guide shoe that is installed in the mandrel bottom, can conveniently be threaded connection grinding milling cylinder.
3, in the utility model, by being installed in the spring in the annular space that plays between pawl formula slips top and mandrel, can make slips under the effect of spring, be close to cone.
4, in the utility model, cone is fixed in the cannelure on the mandrel by shear pin, if mill leaves hanging packer and need to trip out the milling tubing string time, carry mandrel directly and cut off shear pin, the mandrel band pawl formula slips of moving is up, play pawl formula slips and "conesep", realize and the release of hanging packer central tube.
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is structural representation of the present utility model.
Mark among the figure:
Guide shoe 1, mandrel 2, cone 3, shear pin 4, bullet pawl formula slips 5, spring 6, top connection 7.
The specific embodiment
Embodiment 1
This kind bores mill locking fishing tool and comprises mandrel, cone, bullet pawl formula slips, spring and top connection, wherein, cone is inserted in mandrel and is fixed on the mandrel, plays pawl formula slips and is inserted in mandrel, spring fitting is in the annular space that plays between pawl formula slips top and mandrel, and top connection is installed in mandrel top.
Embodiment 2
As preferred forms of the present utility model, referring to accompanying drawing, the utility model is comprised of guide shoe 1, mandrel 2, cone 3, shear pin 4, bullet pawl formula slips 5, spring 6 and top connection 7
Erection sequence of the present utility model is: cone 3 is inserted in mandrel 2 from the lower end, and cone 3 is fixed in the cannelure on the mandrel 2 by shear pin 4.Guide shoe 1 is installed in mandrel 2 bottoms, is threaded connection, and plays pawl formula slips 5 and is inserted in mandrel 2 from the upper end, and spring 6 is installed in the annular space that plays between pawl formula slips 5 tops and the mandrel 2, and slips is close to cone 3 under the effect of spring 6.Top connection 7 is installed in mandrel 2 tops, is threaded connection.
Meet accident midway and meet card when needing to bore mill when being lowered to hanging packer, the utility model is threaded connection in the grinding milling cylinder bottom, the utility model enters in the hanging packer central tube when boring mill, under the effect of spring, play pawl formula slips 5 and be close to hanging packer central tube inwall, after hanging packer left by mill, when central tube is descending, play pawl formula slips 5 and bite central tube, stop central tube to fall.If mill leaves hanging packer and need to trip out the milling tubing string time, to carry mandrel 2 on directly and cut off shear pin 4, the mandrel 2 bands pawl formula slips 5 of moving is up, and playing pawl formula slips 5 separates with cone 3, realizes and the release of hanging packer central tube.
Claims (3)
1. an Oil/gas Well is with boring mill locking fishing tool, it is characterized in that: comprise mandrel (2), cone (3), play pawl formula slips (5), spring (6) and top connection (7), wherein, cone (3) is inserted in mandrel (2) and is fixed on the mandrel (2), play pawl formula slips (5) and be inserted in mandrel (2), spring (6) is installed in the annular space that plays between pawl formula slips (5) top and mandrel (2), and top connection (7) is installed in mandrel (2) top.
2. a kind of Oil/gas Well according to claim 1 is with boring mill locking fishing tool, and it is characterized in that: also include guide shoe (1), guide shoe (1) is installed in mandrel (2) bottom, is threaded connection.
3. a kind of Oil/gas Well according to claim 1 is characterized in that with boring mill locking fishing tool: described cone (3) is fixed in the cannelure on the mandrel (2) by shear pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567077 CN202914011U (en) | 2012-10-31 | 2012-10-31 | Drill grinding locking fishing tool for oil gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567077 CN202914011U (en) | 2012-10-31 | 2012-10-31 | Drill grinding locking fishing tool for oil gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914011U true CN202914011U (en) | 2013-05-01 |
Family
ID=48162332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220567077 Expired - Lifetime CN202914011U (en) | 2012-10-31 | 2012-10-31 | Drill grinding locking fishing tool for oil gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914011U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470205A (en) * | 2013-09-13 | 2013-12-25 | 中国海洋石油总公司 | Anti-jarring reversing fishing spear |
| CN104265225A (en) * | 2014-09-16 | 2015-01-07 | 四川省一三五勘察设计有限公司 | Salvage anchor and salvage method for wire-line core drilling |
| CN104747113A (en) * | 2013-12-31 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Packer in recycling oil well air drill |
-
2012
- 2012-10-31 CN CN 201220567077 patent/CN202914011U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470205A (en) * | 2013-09-13 | 2013-12-25 | 中国海洋石油总公司 | Anti-jarring reversing fishing spear |
| CN104747113A (en) * | 2013-12-31 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Packer in recycling oil well air drill |
| CN104265225A (en) * | 2014-09-16 | 2015-01-07 | 四川省一三五勘察设计有限公司 | Salvage anchor and salvage method for wire-line core drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |