CN104196482B - A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod - Google Patents
A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod Download PDFInfo
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- CN104196482B CN104196482B CN201410335823.XA CN201410335823A CN104196482B CN 104196482 B CN104196482 B CN 104196482B CN 201410335823 A CN201410335823 A CN 201410335823A CN 104196482 B CN104196482 B CN 104196482B
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Abstract
The invention belongs to the Technology field that coal bed gas well salvages workover treatment, it is specifically related to a kind of salvaging contour accident head technique of coal bed gas well double-pumping rod. The present invention is in order to carry out the problem salvaged when the rod broken solved in coal-seam gas pit shaft occurs contour, and then a kind of salvaging contour accident head technique of coal bed gas well double-pumping rod is proposed, comprise by verifying down-hole accident situation, utilize two beam hangers of special compliant tool detection accident whether contour; The simulation scene of the accident; Utilize special lifting instrument that double-pumping rod contour accident head is done non-contour process; Fishing tool is utilized to carry out successively salvaging four step flow processs to accident double-pumping rod. Rupturing occurs in the beam hanger that the present invention utilizes spiral hook effectively to process in coal bed gas well and head is contour causes utilizing conventional trip spear to carry out the problem salvaged, and the beam hanger of down-hole breaking releasing is the high detection such as can carry out fast and does the laggard row salvaging of non-contour process.
Description
Technical field
The invention belongs to the Technology field that coal bed gas well salvages workover treatment, it is specifically related to a kind of salvaging contour accident head technique of coal bed gas well double-pumping rod.
Background technology
In coal-seam gas pit shaft, pumping medium is water, compared to oil well, sucker rod lacks the lubrication of lipid, in long-term operation, easily occur abrasion disconnected de-, cause serious down-hole accident, and then need to salvage the sucker rod of fracture, but may there is the contour namely concordant situation in upper surface in post-rift sucker rod, because of limited space in pit shaft, causes directly salvaging.
Summary of the invention
The present invention is in order to carry out the problem salvaged when the rod broken solved in coal-seam gas pit shaft occurs contour, and then proposes a kind of salvaging contour accident head technique of coal bed gas well double-pumping rod.
The present invention adopts following technical scheme:
A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod, it is characterised in that concrete technical process is as follows:
Whether the first step, verifies down-hole accident situation, utilize two beam hangers of special compliant tool detection accident contour;
2nd step, the simulation scene of the accident: use double joint beam hanger, production tubing and pipe nipple on ground, simulation double joint beam hanger drops the accident scene in oil pipe;
3rd step, utilizes special lifting instrument that double-pumping rod contour accident head is done non-contour process;
4th step, utilizes fishing tool to be salvaged successively by accident double-pumping rod.
Described special compliant tool is the lead of apply grease.
Described special lifting instrument is spiral hook.
The top of described spiral hook is lifting rod, and bottom is spirrillum, and screw diameter is slightly larger than beam hanger head diameter.
Described fishing tool is trip spear.
Rupturing occurs in the beam hanger that the present invention utilizes spiral hook effectively to process in coal bed gas well and head is contour causes utilizing conventional trip spear to carry out the problem salvaged, and the beam hanger of down-hole breaking releasing is the high detection such as can carry out fast and does the laggard row salvaging of non-contour process.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the present invention;
Fig. 2 is view during the contour accident of double-pumping rod;
Fig. 3 is the structural representation of spiral hook;
Fig. 4 is the structural representation of trip spear (1);
In figure: break fall sucker rod, short of 3-of the long root of 1-trip spear, 2-breaks sucker rod, the 4-oil pipe of falling.
Embodiment
By reference to the accompanying drawings, the specific embodiment of the present invention is described further:
As shown in Figure 1, after fracture defect occurs in beam hanger, the technical process of process is:
The first step, verify down-hole accident situation: when conventional trip spear instrument cannot capture the not clear accident head in down-hole, flexible special instrument (lead such as apply grease) is adopted to be carried out " marking " by down-hole accident, the accident head of finding out is two beam hangers, one is male (live head or the short sucker rod that falls that breaks), one is female (dead head or long root break the sucker rod that falls), and two first-class height of accident, as shown in Figure 2.
2nd step, the simulation scene of the accident: use double joint beam hanger, production tubing and pipe nipple on ground, simulation double joint beam hanger drops the accident scene in oil pipe, after analysis, after contour for double-pumping rod accident head must being done non-contour process, then salvages.
3rd step, utilizes special lifting instrument that double-pumping rod contour accident head is done non-contour process:
Process a special spiral hook (Fig. 3), spiral hook top is lifting rod, bottom is spirrillum, the screw diameter of spiral hook is slightly larger than beam hanger head diameter, spiral hook is utilized to carry out capturing screening by power to " the dead head " of double-pumping rod contour accident head and " head of living ", propose operation on " head of living " (upper part namely ruptured) being carried out, make two beam hangers of accident be in non-contour state, so that later use fishing tool is salvaged. During operation, under enter spiral hook, according to well head suspending weight force difference, differentiate that screening captures short root segment and falls sucker rod (live in head), above carry the short sucker rod that falls that breaks, make two sucker rods that fall of breaking form height shapes straggly.
4th step, utilizes trip spear 1(Fig. 4) salvage in oil pipe 4 successively short break and fall sucker rod 3 and long root breaks the sucker rod 2 that falls. Wherein, trip spear 1 is prior art.
Claims (5)
1. salvage the contour accident head technique of coal bed gas well double-pumping rod for one kind, it is characterised in that concrete technical process is as follows:
Whether the first step, verifies down-hole accident situation, utilize two beam hangers of special compliant tool detection accident contour;
2nd step, the simulation scene of the accident: use double joint beam hanger, production tubing and pipe nipple on ground, simulation double joint beam hanger drops the accident scene in oil pipe;
3rd step, utilizes special lifting instrument that double-pumping rod contour accident head is done non-contour process;
4th step, utilizes fishing tool to be salvaged successively by accident double-pumping rod.
2. the contour accident head technique of salvaging coal bed gas well double-pumping rod according to claim 1, it is characterised in that: described special compliant tool is the lead of apply grease.
3. the contour accident head technique of salvaging coal bed gas well double-pumping rod according to claim 1, it is characterised in that: described special lifting instrument is spiral hook.
4. the contour accident head technique of salvaging coal bed gas well double-pumping rod according to claim 3, it is characterised in that: the top of described spiral hook is lifting rod, and bottom is spirrillum, and screw diameter is slightly larger than beam hanger head diameter.
5. the contour accident head technique of salvaging coal bed gas well double-pumping rod according to claim 1, it is characterised in that: described fishing tool is trip spear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335823.XA CN104196482B (en) | 2014-07-16 | 2014-07-16 | A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335823.XA CN104196482B (en) | 2014-07-16 | 2014-07-16 | A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104196482A CN104196482A (en) | 2014-12-10 |
| CN104196482B true CN104196482B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410335823.XA Active CN104196482B (en) | 2014-07-16 | 2014-07-16 | A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN104196482B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561285B (en) * | 2020-06-30 | 2024-01-23 | 南智（重庆）能源技术有限公司 | Intelligent composite salvaging method for oil-gas well |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2374824B (en) * | 1997-08-19 | 2003-04-02 | Cutting & Wear Resistant Dev | Substrate facing of drill string components |
| CN101899956A (en) * | 2010-03-17 | 2010-12-01 | 北京华油油气技术开发有限公司 | Method for salvaging electric pump pipe column fish |
| CN202745783U (en) * | 2012-08-10 | 2013-02-20 | 刘和强 | Drilling and milling type spiral external hook for salvaging clustered sucker rod |
-
2014
- 2014-07-16 CN CN201410335823.XA patent/CN104196482B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2374824B (en) * | 1997-08-19 | 2003-04-02 | Cutting & Wear Resistant Dev | Substrate facing of drill string components |
| CN101899956A (en) * | 2010-03-17 | 2010-12-01 | 北京华油油气技术开发有限公司 | Method for salvaging electric pump pipe column fish |
| CN202745783U (en) * | 2012-08-10 | 2013-02-20 | 刘和强 | Drilling and milling type spiral external hook for salvaging clustered sucker rod |
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| Publication number | Publication date |
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| CN104196482A (en) | 2014-12-10 |
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