CN100334321C - Oil pipe in oil pumping well grout filling leakage blocking construction - Google Patents
Oil pipe in oil pumping well grout filling leakage blocking construction Download PDFInfo
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- CN100334321C CN100334321C CNB2005100889238A CN200510088923A CN100334321C CN 100334321 C CN100334321 C CN 100334321C CN B2005100889238 A CNB2005100889238 A CN B2005100889238A CN 200510088923 A CN200510088923 A CN 200510088923A CN 100334321 C CN100334321 C CN 100334321C
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- pipe
- oil
- pipe string
- oil pipe
- string
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Abstract
The present invention relates to an oil pipe used for the grouting and leak stopping construction of oil production wells. The lower end of the oil pipe is provided with a pipe string which is connected with the lower end of the oil pipe by a pipe string connection sleeve; the pipe string and the pipe string connection sleeve are made of high-temperature resistant flexible metal material. In the design proposal, when a clamping phenomenon occurs in the construction operation of an oil production well, the oil pipe can be lifted out by small force; just a cross section of a pipe string which is near 100 m distance from a pipe opening can be pulled to be broken; when a work layer surface is changed to carry out drilling operation, as the material hardness of the pipe string is lower than the material hardness of the oil pipe, the workload for drilling through a grout plug is reduced. The experiment indicates that the drilling time for a grouting and drilling plug provided with an oil pipe is more than one month, and a grout plug using a pipe string can be drilled through in about two or three days; accordingly, the oil well productivity is greatly improved, the down time and the maintenance man-hours of an oil well are reduced, and the energy consumption for drilling is greatly reduced.
Description
Technical field
The present invention relates to field of petroleum exploitation, particularly relate to the oil pipe in a kind of producing well filling leakage blocking construction.
Background technology
In the prior art of oil exploitation, oil well is being annotated ash, agent is stifled, in the work progresss such as sand washing, owing to multiple reason, oil pipe is annotated dead by mortar, be that oil pipe phenomenon stuck or that be commonly called as the bar that plants flag is the accident of common generation, after taking place, accident no matter take which type of measure to remedy, leave some oil pipes always in oil well at following red dog, thereby bring very big difficulty for later construction, when junk mill equipment grinds off the oil pipe that is detained in the oil well and ash plug under adopting, generally need the time more than one month, so not only influenced the exploitation production of oil well, and cause tremendous loss for other all many-side.
Summary of the invention
The purpose of this invention is to provide the oil pipe in a kind of producing well filling leakage blocking construction, pass through the technical program, at the oil pipe front end pipe string is set, when the various stuck phenomenon of down-hole occurring, can easily oil pipe be proposed, make the work of annotating ash brill plug only need the time about two, three days just can finish, thereby remedied the deficiencies in the prior art.
The technical solution adopted for the present invention to solve the technical problems is: the oil pipe in a kind of producing well filling leakage blocking construction, the lower end of described oil pipe is provided with the pipe string, described pipe was ganged up pipe series connection cover and was connected with the lower end of oil pipe, and described pipe string and pipe series connection cover are made by resistant to elevated temperatures soft alloy material.
As optimization, described pipe string is made by non-ferrous metal aluminium or copper material.
The length of described pipe string is 60-120 rice, and is constituted by several pipe string sections, and the length of described each pipe string section is 4-10 rice, and each pipe string section is connected by pipe series connection cover and is one.
The end, lower end of described pipe string is provided with opened type pipe series connection cover, and the uncovered angle of described opened type pipe series connection cover is the 60-120 degree.
Oil pipe advantage in the producing well filling leakage blocking construction of the present invention is: by the design scheme among the present invention, carry out construction operation when stuck phenomenon occurring at producing well, as long as use less strength just oil pipe can be proposed, and the section of being broken only can occur on the pipe truncation face of managing in exporting nearly 100 meters, when the change working surfaces is bored plug work, because the material hardness of pipe string is well below the material hardness of oil pipe, thereby greatly reduce the workload that drills through the ash plug, show by experiment, need the time more than one month in the time that drills through of boring plug for the notes ash that has oil pipe, and drill through as long as two for the ash plug that adopts the pipe string, time about three days, so not only improved the productivity ratio of oil well greatly, reduce the fault time and the maintenance man-hours of oil well, and significantly reduced the energy consumption of the work that drills through.
Description of drawings
Fig. 1 is a working state schematic representation of the present invention.
Among the figure: 1 oil pipe, 2 pipe strings, 3 pipe series connection covers, 4 pipe string sections, 5 opened type pipe series connection covers.
The present invention will be further described below in conjunction with accompanying drawing.
The specific embodiment
As shown in FIG., oil pipe in the producing well filling leakage blocking construction that the present invention relates to, the lower end of described oil pipe 1 is provided with pipe string 2, and described pipe string 2 is connected with the lower end of oil pipe 1 by pipe series connection cover 3, and described pipe string 2 and pipe series connection are overlapped 3 and made by resistant to elevated temperatures soft alloy material.
More specifically, described pipe string 2 and pipe series connection cover 3 are made by non-ferrous metal aluminium or copper material.
The length of described pipe string 2 is 60-120 rice, and is constituted by several pipe string sections 4, and the length of described each pipe string section 4 is 4-10 rice, and every pipe string section 4 is connected by pipe series connection cover 3 and is one.
The end, lower end of described pipe string 2 is provided with opened type pipe series connection cover 5, and the uncovered angle of described opened type pipe series connection cover 5 is the 60-120 degree.
Oil pipe in the producing well filling leakage blocking construction of the present invention can reduce resistance by setting up uncovered angle when annotating ash, it is more unobstructed that mortar is flowed, and goes here and there jammed phenomenon to reduce pipe on the oil pipe, reduces fault time and various cost from another aspect.
Claims (4)
1, the oil pipe in a kind of producing well filling leakage blocking construction is characterized in that: the lower end of described oil pipe is provided with the pipe string, and described pipe was ganged up pipe series connection cover and is connected with the lower end of oil pipe, and described pipe string and pipe series connection cover are made by resistant to elevated temperatures soft alloy material.
2. the oil pipe in the producing well filling leakage blocking construction according to claim 1 is characterized in that: described pipe string and pipe series connection cover are made by non-ferrous metal aluminium or copper material.
3. the oil pipe in the producing well filling leakage blocking construction according to claim 1 and 2, it is characterized in that: the length of described pipe string is 60-120 rice, and constitute by several pipe string sections, the length of described each pipe string section is 4-10 rice, and each pipe string section is connected by pipe series connection cover and is one.
Oil pipe in the 4 producing well filling leakage blocking constructions according to claim 3 is characterized in that: the end, lower end of described pipe string is provided with opened type pipe series connection cover, and the uncovered angle of described opened type pipe series connection cover is the 60-120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100889238A CN100334321C (en) | 2005-08-03 | 2005-08-03 | Oil pipe in oil pumping well grout filling leakage blocking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100889238A CN100334321C (en) | 2005-08-03 | 2005-08-03 | Oil pipe in oil pumping well grout filling leakage blocking construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1718991A CN1718991A (en) | 2006-01-11 |
| CN100334321C true CN100334321C (en) | 2007-08-29 |
Family
ID=35930920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100889238A Expired - Fee Related CN100334321C (en) | 2005-08-03 | 2005-08-03 | Oil pipe in oil pumping well grout filling leakage blocking construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100334321C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1014084B (en) * | 1986-08-25 | 1991-09-25 | 马斯科工业公司 | Method and apparatus for multi-stage cementing of well casing |
| CN2285370Y (en) * | 1996-12-19 | 1998-07-01 | 辽河石油勘探局欢喜岭采油厂 | Automatic cement-throwing device for grout off operation |
| CN1294244A (en) * | 2000-12-08 | 2001-05-09 | 中国石化胜利油田有限公司采油工艺研究院 | Cementing tool for plugging well underground |
-
2005
- 2005-08-03 CN CNB2005100889238A patent/CN100334321C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1014084B (en) * | 1986-08-25 | 1991-09-25 | 马斯科工业公司 | Method and apparatus for multi-stage cementing of well casing |
| CN2285370Y (en) * | 1996-12-19 | 1998-07-01 | 辽河石油勘探局欢喜岭采油厂 | Automatic cement-throwing device for grout off operation |
| CN1294244A (en) * | 2000-12-08 | 2001-05-09 | 中国石化胜利油田有限公司采油工艺研究院 | Cementing tool for plugging well underground |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1718991A (en) | 2006-01-11 |
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