CN102814617B - Regenerative repair process of sandwich gun for oil-gas well - Google Patents
Regenerative repair process of sandwich gun for oil-gas well Download PDFInfo
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- CN102814617B CN102814617B CN201210344353.4A CN201210344353A CN102814617B CN 102814617 B CN102814617 B CN 102814617B CN 201210344353 A CN201210344353 A CN 201210344353A CN 102814617 B CN102814617 B CN 102814617B
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Abstract
The invention relates to a regenerative repair process of a sandwich gun for an oil-gas well, and the regenerative repair process comprises a sandwich gun detachment and successive treatment process; the sandwich gun detachment process comprises: completely detaching the gun body accessories of the waste sandwich gun and only leaving the gun body of the sandwich gun; the successive treatment process mainly comprises repairing pipe orifice sealing surface, repairing connecting threads and eliminating stress; the pipe orifice sealing surface repairing process comprises repairing the gun body with deformed sealing opening through special hydraulic sealing opening round setting equipment, and fine boring the damaged sealing opening through a boring machine after repair welding the sealing opening through a cold welding machine; the connecting thread repairing process comprises repairing the threads of the damaged connecting threads through a lathe after repair welding the threads through the cold welding machine; and the stress eliminating process comprises: eliminating the internal stress of the gun body qualified in the hydrostatic test through a stepless variable frequency adsorption type high frequency vibrating technology. The process can be used for greatly improving the repair rate of the sandwich gun product and reducing the resource waste.
Description
Technical field
The present invention relates to interlayer gun used in oil gas well mining perforation, specifically interlayer gun Regeneration and Repair technique for Oil/gas Well.
Background technology
In perforating oil gas well, between two oil reservoirs, a plurality of interlayer guns of a conventional work connect the She Kongqiang of two oil reservoirs, to complete the perforation of two oil reservoirs simultaneously.Due to construction environment and environment for use very severe, cause interlayer gun after using once, many functional parts all produce destruction in various degree, traditional renovation technique can only be repaired the interlayer gun of part, the many position of damage can only being clipped, the use that shortens, even scraps processing, a large amount of waste material resources.
summary of the invention:
In order to reduce waste of material, improve interlayer gun Regeneration and Repair rate, reduce production costs, the invention provides interlayer gun Regeneration and Repair technique for a kind of Oil/gas Well.This technique can significantly promote interlayer gun product repair rate, reduces the wasting of resources.
Technical scheme of the present invention is: interlayer gun Regeneration and Repair technique for a kind of Oil/gas Well, comprise that interlayer gun is disassembled and subsequent processes, and it is characterized in that:
Described interlayer gun is disassembled process: first the related thing of rifle body of waste and old interlayer gun is all disassembled, is only stayed interlayer gun rifle body, in connect and interlayer gun dismounting adopts harmless arc air-actuated jaw and special spanner; The dismounting of interlayer gun liner adopts mechanical pullers and pulls the mode being used in conjunction with of hammering into shape; For minority liner, be out of shape serious interlayer gun, use special-purpose hydraulic mandril device to remove liner;
Described subsequent processes mainly comprises the reparation of ferrule face, connecting thread reparation and stress elimination process;
Described ferrule face repair process: for there being the rifle body of seal distortion to repair with dedicated hydraulic seal set round prosthetic appliance, seal has damage by using boring machine right boring after cold welding machine repair welding;
Described connecting thread repair process: have damage part with repairing screw thread by lathe processing again after cold welding machine repair welding for connecting thread;
Described stress is eliminated process: for the qualified rifle body of the water pressure test, adopt stepless frequency conversion absorption type dithering technique to eliminate inside workpiece stress, make workpiece arrive qualified factory state.
In addition, this technique also comprises that in gun barrel two ends, finished surface carries out preservative treatment with antirust oil, and two ends connecting thread is installed additional to thread protector protection.
The invention has the beneficial effects as follows: the present invention increases substantially the repair rate of interlayer gun and repairing quality, reduce the wasting of resources, the result of use of defending oneself in critical process below; Interlayer gun rifle body is disassembled operation: because interlayer is after use, difficulty, because force of explosion effect causes liner torsional deformation, is disassembled in inside, and the present invention just adopts several different methods to be used in conjunction with according to actual conditions, in connect and interlayer gun dismounting adopts harmless arc air-actuated jaw and special spanner, its feature is, clamps and stablizes, and workpiece does not stay impression, guarantee the reparation of workpiece not damaged, interlayer gun liner dismounting difficulty, adopts mechanical pullers and pulls the method being used in conjunction with of hammering into shape, the harmless efficient dismounting of tubing.For minority liner, be out of shape serious interlayer gun, use and aim at the hydraulic mandril device removal liner of disassembling operation design; The rate of disassembling of greatly very high interlayer gun, has solved in traditional handicraft, and it is not high that interlayer gun is disassembled rate, and that for difficulty, disassembles can only block the problem that shortens and processing; Ferrule face and screw thread cold welding reparing process: workpiece in cold welding repair process, all the time in normal temperature state, do not produce internal stress, without thermal deformation, flawless, without annealing, ruckbildung.Repair position surplus accurately controlled, greatly reduce post-production time and difficulty, increase work efficiency, economize on resources.Ferrule surface accuracy need carry out precision optical machinery processing with boring machine, guarantees out-of-roundness and fineness.Screw thread reparation is carried out inspection during manufacture with dedicated tool and gauge, should meet GB/T9253.2 standard.In gun barrel two ends, finished surface carries out preservative treatment with antirust oil, and installs thread protector protection additional, increases the service life.Stress is eliminated operation: under the enormous impact power of explosion and gun barrel inside can there is residual stress, for guaranteeing workpiece quality, repair and adopt stepless frequency conversion absorption type dithering technique to eliminate inside workpiece stress, make workpiece arrive qualified factory state, guarantee safety in utilization.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, this technique comprises following process successively: operation 1 interlayer gun is disassembled, operation 2 oil removings and blasting treatment, operation 3 Linearity surveyings, operation 4 alignings, operation 5 ferrules and circularity reparation, operation 6 gas thread detections and reparation, operation 7 body magnetic leakage detections, operation 8 water pressure test detections, operation 9 flour sand processing, operation 10 stress eliminations, operation 11 length detection, operation 12 throwing pill strengthenings, operation 13 preservative treatments, operation 14 mark knowledges and operation 15 finished product warehouse-ins etc.
Waste and old sandwiched perforating gun is transported to behind plant area precalculated position, carrying out operation 1 interlayer gun disassembles, first with harmless arc air-actuated jaw and special spanner by interlayer gun body with in connect dismounting, then adopt mechanical pullers and pull the method being used in conjunction with of hammering into shape, interlayer gun body is separated with liner, if any liner, be that interlayer gun fuse primer is difficult to remove, it is deposited separately, utilize hydraulic mandril device to process; Operation 2 is processed interlayer gun oil removing and flour sand, main method is to utilize row to hang to make workpiece upper and lower vibration in high temperature alkaline solution, reach and remove after surface of the work oil slick and dirt, recycling flour sand treatment technology, select the fine sand below 0.3 mm to carry out sandblast, improve surface smoothness scale removal simultaneously; Operation 3 Linearity surveyings, by Steel Ruler to body Linearity surveying; Operation 4 alignings, the interlayer gun body that linearity value is greater than to 2/1000mm is processed by straightener, guarantees linearity; Operation 5 ferrule faces detect and circularity reparation, utilize dedicated gauge to detect mouth of pipe sealing surface circularity, the interlayer gun body that circularity is greater than to 0.5mm carries out operation 5.1 circularity reparations, and processing method is to use hydraulic pressure roundness shaping device, by its set round, utilize the roughness of roughmeter detection mouth of pipe sealing surface, roughness value is greater than to the grinding process of Ra1.6, as sealing surface exists damage, carry out carrying out again right boring after operation 5.2 cold welding reparations, utilize cold welding machine and boring machine to be used in conjunction with reparation injured surface; Operation 6 gas thread detect and repair, and whether the tube connector screw thread that detects the mouth of pipe exists corrosion and mechanical damage, if any damage, utilizes cold welding technology to be repaired, and utilizes lathe processing tube screw thread again after reparation; Operation 7 body magnetic leakage detections, rifle body magnetic leakage detection, mainly detect body laterally, longitudinal crack and corrosion pit depth be greater than the damage of 0.5mm, as detect damage and be greater than 0.5mm person, as operation 7.1 is sentenced useless processing; Operation 8 water pressure resistances tests detect, by interlayer gun body water pressure generation to 35Mp, pressurize 3min, ne-leakage manifests can be qualified, if any the aobvious operation 5 that turns back to of seepage, detects reasons, body seepage is directly scrapped in this way, seal seepage, carries out cold welding reparation in this way; Operation 9 flour sands are processed, and the flour sand that is less than 0.3mm with particle diameter gently sprays interlayer gun surfaces externally and internally, can not surpass 30s, and object is to eliminate the iron mold that withstand voltage test is remained; Operation 10 stress are eliminated, and adopt stepless frequency conversion absorption type dithering technique to eliminate inside workpiece residual stress; Operation 11 length detection, by the length of Steel Ruler measurement interlayer gun, with dimension comparison, body of a gun total length error does not allow to surpass 0.22mm; Operation 12 throwing pill strengthenings, utilize shot-blasting machine to process, and reach the object of surface peening; Operation 13 preservative treatments, mouth of pipe two ends inwall is processed with dewatering rust preventive oil, outer wall spraying nano paint; Finally enter operation 14 mark knowledges and operation 15 and enter warehouse for finished product.
Adopt after above-mentioned technique, can significantly promote interlayer gun product repair rate, reduce the wasting of resources and production cost.
Claims (2)
1. interlayer gun Regeneration and Repair technique for Oil/gas Well, comprises that interlayer gun is disassembled and subsequent processes, it is characterized in that:
Described interlayer gun is disassembled process: first the related thing of rifle body of waste and old interlayer gun is all disassembled, is only stayed interlayer gun rifle body, in connect and interlayer gun dismounting adopts harmless arc air-actuated jaw and special spanner; The dismounting of interlayer gun liner adopts mechanical pullers and pulls the mode being used in conjunction with of hammering into shape; For minority liner, be out of shape serious interlayer gun, use special-purpose hydraulic mandril device to remove liner;
Described subsequent processes mainly comprises the reparation of ferrule face, connecting thread reparation and stress elimination process;
Described ferrule face repair process: for there being the rifle body of seal distortion to repair with dedicated hydraulic seal set round prosthetic appliance, seal has damage by using boring machine right boring after cold welding machine repair welding;
Described connecting thread repair process: have damage part with repairing screw thread by lathe processing again after cold welding machine repair welding for connecting thread;
Described stress is eliminated process: for the qualified rifle body of the water pressure test, adopt stepless frequency conversion absorption type dithering technique to eliminate inside workpiece stress, make workpiece arrive qualified factory state.
2. interlayer gun Regeneration and Repair technique for Oil/gas Well according to claim 1, is characterized in that: also comprise that in gun barrel two ends, finished surface carries out preservative treatment with antirust oil, and two ends connecting thread is installed additional to thread protector protection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344353.4A CN102814617B (en) | 2012-09-18 | 2012-09-18 | Regenerative repair process of sandwich gun for oil-gas well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344353.4A CN102814617B (en) | 2012-09-18 | 2012-09-18 | Regenerative repair process of sandwich gun for oil-gas well |
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| Publication Number | Publication Date |
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| CN102814617A CN102814617A (en) | 2012-12-12 |
| CN102814617B true CN102814617B (en) | 2014-10-29 |
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| CN201210344353.4A Active CN102814617B (en) | 2012-09-18 | 2012-09-18 | Regenerative repair process of sandwich gun for oil-gas well |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103624477A (en) * | 2013-12-05 | 2014-03-12 | 大庆高新区北油创业科技有限公司 | Repair and reprocessing technology for blind hole of waste oil well perforating gun barrel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU857447A1 (en) * | 1979-11-23 | 1981-08-23 | Раменское отделение Всесоюзного научно-исследовательского института геофизических методов разведки | Cumulative perforator |
| US4534423A (en) * | 1983-05-05 | 1985-08-13 | Jet Research Center, Inc. | Perforating gun carrier and method of making |
| RU2061846C1 (en) * | 1992-12-21 | 1996-06-10 | Научно-производственная фирма "Эридан-Экспо" | Hydraulic puncher |
| US5954133A (en) * | 1996-09-12 | 1999-09-21 | Halliburton Energy Services, Inc. | Methods of completing wells utilizing wellbore equipment positioning apparatus |
| CN1458389A (en) * | 2002-05-17 | 2003-11-26 | 崔媛 | Regenerating method for oil field perforator |
| CN1603575A (en) * | 2004-10-29 | 2005-04-06 | 西安通源石油科技股份有限公司 | Oil-gas well perforator interlayer gun |
| CN1883873A (en) * | 2006-05-24 | 2006-12-27 | 东营市百斯特石油技术有限责任公司 | Perforating gun repair process |
-
2012
- 2012-09-18 CN CN201210344353.4A patent/CN102814617B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU857447A1 (en) * | 1979-11-23 | 1981-08-23 | Раменское отделение Всесоюзного научно-исследовательского института геофизических методов разведки | Cumulative perforator |
| US4534423A (en) * | 1983-05-05 | 1985-08-13 | Jet Research Center, Inc. | Perforating gun carrier and method of making |
| RU2061846C1 (en) * | 1992-12-21 | 1996-06-10 | Научно-производственная фирма "Эридан-Экспо" | Hydraulic puncher |
| US5954133A (en) * | 1996-09-12 | 1999-09-21 | Halliburton Energy Services, Inc. | Methods of completing wells utilizing wellbore equipment positioning apparatus |
| CN1458389A (en) * | 2002-05-17 | 2003-11-26 | 崔媛 | Regenerating method for oil field perforator |
| CN1603575A (en) * | 2004-10-29 | 2005-04-06 | 西安通源石油科技股份有限公司 | Oil-gas well perforator interlayer gun |
| CN1883873A (en) * | 2006-05-24 | 2006-12-27 | 东营市百斯特石油技术有限责任公司 | Perforating gun repair process |
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| CN102814617A (en) | 2012-12-12 |
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Effective date of registration: 20161208 Address after: 163316 Daqing science and Technology Development Zone, Heilongjiang province high tech Industrial Park, building A1-2, room 503 Patentee after: Li Fujun Address before: Business Development Zone in Daqing city of Daqing province Heilongjiang 163316 Street No. 2 Patentee before: Beiyou Chuangye Science &. Technology Co., Ltd., Daqing High-New Zone |