CN103850653B - The manufacture method of insulation oil sleeve pipe - Google Patents
The manufacture method of insulation oil sleeve pipe Download PDFInfo
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- CN103850653B CN103850653B CN201410053038.5A CN201410053038A CN103850653B CN 103850653 B CN103850653 B CN 103850653B CN 201410053038 A CN201410053038 A CN 201410053038A CN 103850653 B CN103850653 B CN 103850653B
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Abstract
The present invention relates to a kind of manufacture method of insulation oil sleeve pipe, insulation oil sleeve pipe comprises outer tube, intervalve and the interior pipe that gap is set with, wherein intervalve one end machining internal thread, other end threading, one end of intervalve machining internal thread is welded at pipe end place with outer tube, weld at reserved internal thread length place with interior pipe, one end of intervalve threading is welded at reserved external thread length place with outer tube, welds at pipe end place with interior pipe; Filling with insulation material in the annular space that outer tube and intervalve are formed also vacuumizes formation first isolation layer, vacuumizes rear inert gas injecting, form the second isolation layer in the annular space of intervalve and interior pipe; Its manufacturing step is followed successively by: the pretreatment of three pipes, interior pipe are set with intervalve and weld, interior pipe and the process of intervalve annular space, outer tube are set with intervalve and weld, outer tube and the process of intervalve annular space, apparent heat conductivity are tested and intervalve two ends machining screw.The present invention has compound steel pipe and double thermal insulation Rotating fields, and the heat insulation life-span is long, function admirable.
Description
Technical field
The present invention relates to a kind of manufacture method of insulation oil sleeve pipe, be specifically related to the steam injection of heavy crude heat extraction operation in a kind of petroleum industry, oil tool and manufacture method thereof, belong to technical field of petroleum extraction
Background technology
Along with the development of oil exploitation industry and the continuous increase of consumption of petroleum amount, heavy crude producing has become the main yield source of domestic and international oil company, and steam soak and steam flooding two kinds of techniques are taked in thickened oil recovery usually, and these two kinds of techniques all need to use insulated tubing and sleeve pipe as steam injection oil tool.Current insulated tubing all according to or produce with reference to Chinese patent (application number 97115719.7) disclosed a kind of " vacuum heat-insulation oil pipe and manufacturing process thereof ", product is by box cupling, insulation bushing, bushing pipe, outer tube, interior pipe, isolation layer, wiper block, inhale the compositions such as hydrogen agent, wherein insulating layer structure is: interior pipe laminated aluminium foil, glass cross apart windings, annular space vacuumizes, and add the agent of suction hydrogen, the insulation oil sleeve pipe apparent heat conductivity of this kind of fabrication process is better, at protection oil well casing, reduce wellbore heat loss, lifting note is adopted effect aspect and is served positive effect, but because the existence of " negative pressure " and steel " hydrogen oozes " phenomenon in insulated tubing annular space, insulated tubing steam injection of going into the well recover the oil about 2 years or 15 steam injections week after date heat-proof qualities obviously decay, have a strong impact on the application life of insulated tubing, box cupling junction heat waste is serious simultaneously, this place's well cementing casing pipe is caused to occur that cover damages phenomenon, therefore the huge waste of economic benefit is caused.
Summary of the invention
The object of this invention is to provide a kind of manufacture method of insulation oil sleeve pipe that can overcome above-mentioned defect, heat-proof quality temperature, excellent working performance.Its technical scheme is:
A kind of manufacture method of insulation oil sleeve pipe, wherein insulation oil sleeve pipe comprises outer tube, intervalve and the interior pipe that steel gap is set with, wherein intervalve one end machining internal thread, other end threading, one end of intervalve machining internal thread is welded at pipe end place with outer tube, weld at reserved internal thread length place with interior pipe, one end of intervalve threading is welded at reserved external thread length place with outer tube, welds at pipe end place with interior pipe; Filling with insulation material in the annular space that outer tube and intervalve are formed also vacuumizes formation first isolation layer, vacuumizes rear inert gas injecting, form the second isolation layer in the annular space of intervalve and interior pipe; It is characterized in that adopting following steps: the 1) pretreatment of outer tube, intervalve and interior pipe; 2) in, pipe is set with intervalve and welds; 3) pipe and the process of intervalve annular space in; 4) outer tube is set with intervalve and welds; 5) outer tube and the process of intervalve annular space; 6) apparent heat conductivity test; 7) intervalve two ends machining screw.
The manufacture method of described insulation oil sleeve pipe, step 1) pretreatment of middle external tube, intervalve and interior pipe comprises: end upsetting is carried out to intervalve, and orifice is taken out in processing on intervalve and outer tube, carrying out blasting treatment with the inside and outside wall of shot-blasting machine to the inwall of outer tube, the outer wall of interior pipe and intervalve, finally compound steel pipe being carried out degassing processing in 3 hours except being heated to 380 DEG C of insulations in steam stove; Step 2) in pipe to be set with and welding method is with intervalve: interior pipe is drawn in intervalve, and this end is welded after internal thread machining length is reserved in intervalve one end, then welded at pipe end place by the other end of intervalve and interior pipe, two ends weld seam carries out carrying out next step after x-ray inspection is passed through; Step 3) in pipe with the method for intervalve annular space process be: 10 are evacuated to annular space
-1re-injection inert gas after Pa, then carries out the stifled weldering of electric resistance welding, use dye penetrant inspection carry out detecting by after carry out next step; Step 4) middle external tube and intervalve is set with and welding method is: first wrap up heat-barrier material at intervalve external surface and add and inhale hydrogen agent, then the assembly of interior pipe and intervalve is drawn in outer tube pipe, and adopt carbon dioxide gas arc welding to weld this end after external thread length is reserved in one end that interior pipe and intervalve assembly reserve threading, and then other one end is welded together at pipe end place, carry out carrying out next step after x-ray inspection is passed through to two ends weld seam; Step 5) method of middle external tube and the process of intervalve annular space is: 10 are evacuated to outer tube and intervalve annular space
-2the Pa order of magnitude, carries out electric resistance welding shutoff under vacuum conditions, use dye penetrant inspection carry out detecting by after carry out next step; Step 6) in apparent heat conductivity testing standard be: apparent heat conductivity is not more than 0.02w/m DEG C for qualified products, carries out next step; Step 7) be at intervalve two ends difference machining internal thread and external screw thread.
Compared with prior art, its advantage is in the present invention:
1) there is double thermal insulation layer, greatly improve the heat-proof quality of product;
2) in the annular space of interior pipe and intervalve, inert gas injecting slow down " hydrogen oozes " phenomenon, extends the heat insulation life-span;
3) in junction be double-decker, thoroughly solve the heat waste problem at this place, its heat-proof quality is promoted to D ~ E level by current A ~ E level, junction heat waste is reduced to 10% by originally accounted for tubing string Total heat loss 70%, it is estimated that, the heat insulation life-span of insulation oil sleeve pipe of the present invention can extend to 8 ~ 10 years by current 2 years;
4) cover solving junction damages problem;
5) internal diameter is unified, and junction is without turbulent flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1, outer tube 2, intervalve 3, interior pipe 4, first isolation layer 5, second isolation layer 6, take out orifice
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
In the embodiment shown in fig. 1: comprise the outer tube 1 of steel gap suit, intervalve 2 and interior pipe 3, wherein intervalve 2 one end machining internal thread, other end threading, one end of intervalve 2 machining internal thread is welded at pipe end place with outer tube 1, weld at reserved internal thread length place with interior pipe 3, one end of intervalve 2 threading is welded at reserved external thread length place with outer tube 1, welds at pipe end place with interior pipe 3; Filling with insulation material in the annular space that outer tube 1 and intervalve 2 are formed also vacuumizes formation first isolation layer 4, vacuumizes rear inert gas injecting, form the second isolation layer 5 in intervalve 2 and the annular space of interior pipe 3.
Its manufacture method adopts following steps: the 1) pretreatment of outer tube 1, intervalve 2 and interior pipe 3; 2) interior pipe 3 is set with intervalve 2 and welds; 3) interior pipe 3 and the process of intervalve 2 annular space; 4) outer tube 1 is set with intervalve 2 and welds; 5) outer tube 1 and the process of intervalve 2 annular space; 6) apparent heat conductivity test; 7) intervalve 2 two ends machining screw.Wherein:
The pretreatment of outer tube 1, intervalve 2 and interior pipe 3 comprises: carry out end upsetting to intervalve 2, and orifice 6 is taken out in processing on intervalve 2 and outer tube 1, carrying out blasting treatment with the inside and outside wall of shot-blasting machine to the inwall of outer tube 1, the outer wall of interior pipe 3 and intervalve 2, finally compound steel pipe being carried out degassing processing in 3 hours except being heated to 380 DEG C of insulations in steam stove; Interior pipe 3 is set with intervalve 2 and welding method is: drawn by interior pipe 3 in intervalve 2, and this end is welded after internal thread machining length is reserved in intervalve 2 one end, then welded at pipe end place by the other end of intervalve 2 and interior pipe 3, two ends weld seam carries out carrying out next step after x-ray inspection is passed through; Interior pipe 3 with the method for intervalve 2 annular space process is: be evacuated to 10 to annular space
-1re-injection inert gas after Pa, then carries out the stifled weldering of electric resistance welding, use dye penetrant inspection carry out detecting by after carry out next step; Outer tube 1 and intervalve 2 are set with and welding method is: first wrap up heat-barrier material at intervalve 2 external surface and add and inhale hydrogen agent, then in the traction of the assembly of interior pipe 3 and intervalve 2 being managed to outer tube 1, and adopt carbon dioxide gas arc welding to weld this end after external thread length is reserved in one end that interior pipe 3 and intervalve 2 assembly reserve threading, and then other one end is welded together at pipe end place, carry out carrying out next step after x-ray inspection is passed through to two ends weld seam; Outer tube 1 with the method for intervalve 2 annular space process is: be evacuated to 10 to outer tube 1 and intervalve 2 annular space
-2the Pa order of magnitude, carries out electric resistance welding shutoff under vacuum conditions, use dye penetrant inspection carry out detecting by after carry out next step; Apparent heat conductivity testing standard is: apparent heat conductivity is not more than 0.02w/m DEG C for qualified products, carries out next step; Intervalve 2 two ends are machining internal thread and external screw thread respectively.
Manufacture a collection of insulation oil sleeve pipe by the inventive method, and tested for oil producing operation.By SY/T5324-94 standard, its heat-proof quality is tested to the insulation oil sleeve pipe just manufactured (newly managing) and the insulation oil sleeve pipe (old pipe) after using 2 years, the results are shown in Table 1.Visible, the heat-proof quality of the new pipe of insulation oil sleeve pipe of the present invention is all between D ~ E, and use apparent heat conductivity change after 2 years little, data accordingly, can calculate, the heat insulation life-span of insulation oil sleeve pipe of the present invention can reach 8 ~ 10 years.
The heat-proof quality of table 1 insulation oil sleeve pipe of the present invention
Claims (8)
1. the manufacture method of an insulation oil sleeve pipe, wherein insulation oil sleeve pipe comprises outer tube (1), intervalve (2) and the interior pipe (3) that steel gap is set with, wherein intervalve (2) one end machining internal thread, other end threading, one end of intervalve (2) machining internal thread is welded at pipe end place with outer tube (1), weld at reserved internal thread length place with interior pipe (3), one end of intervalve (2) threading is welded at reserved external thread length place with outer tube (1), welds at pipe end place with interior pipe (3); Filling with insulation material in the annular space that outer tube (1) and intervalve (2) are formed also vacuumizes formation first isolation layer (4), vacuumize rear inert gas injecting in intervalve (2) and the annular space of interior pipe (3), form the second isolation layer (5); It is characterized in that adopting following steps: the 1) pretreatment of outer tube (1), intervalve (2) and interior pipe (3); 2) in, pipe (3) is set with intervalve (2) and welds; 3) pipe (3) and intervalve (2) annular space process in; 4) outer tube (1) is set with intervalve (2) and welds; 5) outer tube (1) and intervalve (2) annular space process; 6) apparent heat conductivity test; 7) intervalve (2) two ends machining screw.
2. the manufacture method of insulation oil sleeve pipe according to claim 1, it is characterized in that step 1) pretreatment of outer tube (1), intervalve (2) and interior pipe (3) comprising: end upsetting is carried out to intervalve (2), and take out orifice (6) at intervalve (2) and the upper processing of outer tube (1), with shot-blasting machine, blasting treatment being carried out to the outer wall of the inwall of outer tube (1), interior pipe (3) and the inside and outside wall of intervalve (2), finally compound steel pipe being carried out degassing processing in 3 hours except being heated to 380 DEG C of insulations in steam stove.
3. the manufacture method of insulation oil sleeve pipe according to claim 1, it is characterized in that step 2) interior pipe (3) is set with intervalve (2) and welding method is: interior pipe (3) is drawn in intervalve (2), and this end is welded after internal thread machining length is reserved in intervalve (2) one end, then welded at pipe end place by the other end of intervalve (2) and interior pipe (3), two ends weld seam carries out carrying out next step after x-ray inspection is passed through.
4. the manufacture method of insulation oil sleeve pipe according to claim 1, is characterized in that step 3) in the method for pipe (3) and intervalve (2) annular space process be: 10 are evacuated to annular space
-1re-injection inert gas after Pa, then carries out the stifled weldering of electric resistance welding, use dye penetrant inspection carry out detecting by after carry out next step.
5. the manufacture method of insulation oil sleeve pipe according to claim 1, it is characterized in that step 4) outer tube (1) is set with intervalve (2) and welding method is: first wrap up heat-barrier material at intervalve (2) external surface and add and inhale hydrogen agent, then the assembly of interior pipe (3) and intervalve (2) is drawn in outer tube (1) pipe, and adopt carbon dioxide gas arc welding to weld this end after external thread length is reserved in one end that interior pipe (3) and intervalve (2) assembly reserve threading, and then other one end is welded together at pipe end place, carry out carrying out next step after x-ray inspection is passed through to two ends weld seam.
6. the manufacture method of insulation oil sleeve pipe according to claim 1, is characterized in that step 5) method of outer tube (1) and intervalve (2) annular space process is: 10 are evacuated to outer tube (1) and intervalve (2) annular space
-2the Pa order of magnitude, carries out electric resistance welding shutoff under vacuum conditions, use dye penetrant inspection carry out detecting by after carry out next step.
7. the manufacture method of insulation oil sleeve pipe according to claim 1, is characterized in that step 6) apparent heat conductivity testing standard is: apparent heat conductivity is not more than 0.02w/m DEG C for qualified products, carries out next step.
8. the manufacture method of insulation oil sleeve pipe according to claim 1, is characterized in that step 7) be intervalve (2) two ends machining internal thread and external screw thread respectively.
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| CN201410053038.5A CN103850653B (en) | 2014-02-17 | 2014-02-17 | The manufacture method of insulation oil sleeve pipe |
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| CN201410053038.5A CN103850653B (en) | 2014-02-17 | 2014-02-17 | The manufacture method of insulation oil sleeve pipe |
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| CN103850653B true CN103850653B (en) | 2016-04-20 |
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|---|---|---|---|---|
| CN105275406B (en) * | 2014-06-19 | 2017-12-26 | 中国石油化工股份有限公司 | Heat-insulated completion system and heat-insulated completion method |
| CN104589000B (en) * | 2015-02-15 | 2017-03-29 | 四川蓝星机械有限公司 | A kind of bilayer sleeve processing technology |
| CN107833728B (en) * | 2017-10-31 | 2019-05-07 | 国网山东省电力公司电力科学研究院 | Sealing structure and encapsulating method of the transformer oil filled bushing insulator with metab |
| CN110227909B (en) * | 2019-06-17 | 2020-10-13 | 中国航发南方工业有限公司 | Processing method of open type double-layer heat-insulation oil tank body |
| CN110449697B (en) * | 2019-08-06 | 2021-09-28 | 张家港市江南锅炉压力容器有限公司 | Inner pipe heating device for linear quencher and inner pipe welding method using same |
| CN111287672A (en) * | 2020-04-16 | 2020-06-16 | 东北石油大学 | Heat exchange and heat insulation sleeve for exploiting terrestrial heat by utilizing waste oil well |
| CN115263201B (en) * | 2022-08-03 | 2023-07-14 | 山东美生热能科技有限公司 | Thermal-insulated oil sleeve pipe with vacuum self-checking function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415184A (en) * | 1981-04-27 | 1983-11-15 | General Electric Company | High temperature insulated casing |
| US6000438A (en) * | 1998-02-13 | 1999-12-14 | Mcdermott Technology, Inc. | Phase change insulation for subsea flowlines |
| CN2410410Y (en) * | 2000-03-20 | 2000-12-13 | 孟范中 | High efficient injection-production dual-purpose energy-saving oil pipe for thickened oil |
| CN2544086Y (en) * | 2002-06-14 | 2003-04-09 | 孟范中 | Thermal-insulation oil production pipe for thick oil |
| CN201090202Y (en) * | 2007-09-24 | 2008-07-23 | 辽河石油勘探局 | Heat insulation pipe without coupling |
| RU2375547C1 (en) * | 2008-06-09 | 2009-12-10 | Вадим Викторович Емельянов | Thermally insulated column |
| CN101644372A (en) * | 2009-08-21 | 2010-02-10 | 湖北贵族真空科技股份有限公司 | Vacuum compound heat insulating pipe |
| CN102071879A (en) * | 2011-01-07 | 2011-05-25 | 辽河石油勘探局总机械厂 | Novel prestressed heat-insulation oil pipe |
-
2014
- 2014-02-17 CN CN201410053038.5A patent/CN103850653B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415184A (en) * | 1981-04-27 | 1983-11-15 | General Electric Company | High temperature insulated casing |
| US6000438A (en) * | 1998-02-13 | 1999-12-14 | Mcdermott Technology, Inc. | Phase change insulation for subsea flowlines |
| CN2410410Y (en) * | 2000-03-20 | 2000-12-13 | 孟范中 | High efficient injection-production dual-purpose energy-saving oil pipe for thickened oil |
| CN2544086Y (en) * | 2002-06-14 | 2003-04-09 | 孟范中 | Thermal-insulation oil production pipe for thick oil |
| CN201090202Y (en) * | 2007-09-24 | 2008-07-23 | 辽河石油勘探局 | Heat insulation pipe without coupling |
| RU2375547C1 (en) * | 2008-06-09 | 2009-12-10 | Вадим Викторович Емельянов | Thermally insulated column |
| CN101644372A (en) * | 2009-08-21 | 2010-02-10 | 湖北贵族真空科技股份有限公司 | Vacuum compound heat insulating pipe |
| CN102071879A (en) * | 2011-01-07 | 2011-05-25 | 辽河石油勘探局总机械厂 | Novel prestressed heat-insulation oil pipe |
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Effective date of registration: 20200113 Address after: 255000 west head of Weisi Road, Qilu Chemical Industry Zone, Linzi District, Zibo City, Shandong Province Patentee after: Zibo Fu ruit heat energy technology Co., Ltd. Address before: 257082 No. 203, South Road, Dongying District, Shandong, Dongying Patentee before: Shengli Oil Field Furuite Petroleum Equipment Co., Ltd. |