CN105756579A - Double-body oil tube - Google Patents
Double-body oil tube Download PDFInfo
- Publication number
- CN105756579A CN105756579A CN201610241767.2A CN201610241767A CN105756579A CN 105756579 A CN105756579 A CN 105756579A CN 201610241767 A CN201610241767 A CN 201610241767A CN 105756579 A CN105756579 A CN 105756579A
- Authority
- CN
- China
- Prior art keywords
- oil tube
- tube
- double
- inner oil
- concentric
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004391 petroleum recovery Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/18—Pipes provided with plural fluid passages
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a double-body oil tube with a good use effect. The double-body oil tube comprises an inner oil tube and an outer oil tube, wherein the outer oil tube is concentric with the inner oil tube; the outer sides of the two ends of the inner oil tube are respectively connected with the outer oil tube through a plurality of connecting bodies; an inner passage is arranged in the inner oil tube; an annular passage is arranged between the inner oil tube and the outer oil tube; one end of each of the inner oil tube and the outer oil tube is provided with conical male threads, and the other end of each of the inner oil tube and the outer oil tube is provided with conical female threads which are mutually matched with the corresponding conical male threads. The double-body oil tube has the advantages that the structure is novel; by adopting a concentric double-tube integral technique and a concentric double-tube conical thread butting technique, double circulating passages are formed in the concentric tube, so that the difficulty and risk in construction are decreased, the installation is convenient, the use effect is good, the reliability is high, the sealing property is good, the seizure fault of small-diameter tubes is avoided, and the double-body oil tube is suitable for deep-well oil production techniques.
Description
Technical field
The present invention relates to a kind of oil exploration equipment, particularly relate to a kind of binary oil pipe.
Background technology
Process for petroleum recovery technology is often used concentric double pipe post Technology, the technological process of this technology is: first with the tubing string being relatively large in diameter by required oil tool G.I.H, it is arranged on projected depth, then enter the less tubing string of diameter under in major diameter tubing string and insert in well in instrument, complete peripheral passage, whole down-hole, reaching technique purpose, putting into recovers the oil produces.This technique is primarily present following shortcoming: one, operational procedure is complicated, and difficulty is big, has a big risk；Two, poor reliability, the sealing property inserting docking in down-hole is difficult to ensure that；Three, it is susceptible to narrow tube jamming failure and causes process failure；Four, the application of oil recovery technique is limited, particularly the application of deep-well oil-extraction technology.
Summary of the invention
The technical problem to be solved is: provide the binary oil pipe that a kind of result of use is good.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: binary oil pipe, including: inner oil tube and the outer oil pipe being arranged concentrically with inner oil tube, it is connected with outer oil pipe respectively through some connectors outside described inner oil tube two ends, it is provided with internal channel in described inner oil tube, it is provided with circular passage between described inner oil tube and outer oil pipe, one end of described inner oil tube and outer oil pipe is respectively arranged with taper male thread, the other end of described inner oil tube and outer oil pipe is respectively arranged with the taper box thread cooperated with taper male thread.
The invention have the advantage that above-mentioned binary oil pipe, novel structure, adopt concentric double pipe one body technique and concentric double pipe tapered thread docking technique simultaneously, in concentric tube, form Two-way Cycle passage, reduce difficulty of construction and risk, easy for installation, result of use is good, and reliability is high, adopts tapered thread Butt sealing performance strong, narrow tube jamming failure will not be there is, it is possible to adapt to the application of deep-well oil-extraction technology.
Accompanying drawing explanation
Fig. 1 is the structural representation of binary oil pipe of the present invention.
In figure: 1, inner oil tube, 2, outer oil pipe, 3, connector, 4, internal channel, 5, circular passage, 6, taper male thread, 7, taper box thread.
Detailed description of the invention
The particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, binary oil pipe, including: inner oil tube 1 and the outer oil pipe 2 being arranged concentrically with inner oil tube 1, it is connected with outer oil pipe 2 respectively through some connectors 3 outside described inner oil tube 1 two ends, it is provided with internal channel 4 in described inner oil tube 1, it is provided with circular passage 5 between described inner oil tube 1 and outer oil pipe 2, one end of described inner oil tube 1 and outer oil pipe 2 is respectively arranged with taper male thread 6, the other end of described inner oil tube 1 and outer oil pipe 2 is respectively arranged with the taper box thread 7 cooperated with taper male thread 6.
When above-mentioned binary oil pipe uses, more piece binary pipe is adopted to connect, taper male thread 6 on first segment inner oil tube 1 and outer oil pipe 2 screws in the taper box thread 7 on second section inner oil tube 1 and outer oil pipe 2 simultaneously, and the taper box thread 7 on second section inner oil tube 1 and outer oil pipe 2 screws in the taper male thread 6 on Section of three inner oil tube 1 and outer oil pipe 2 simultaneously, realize slitless connection, it is connected with outer oil pipe 2 respectively through connector 3 outside inner oil tube 1 two ends owing to often saving, inner oil tube 1 and outer oil pipe 2 are arranged concentrically, binary oil pipe concentricity after docking is high, easy for installation, use safety, form internal channel 4 and the Two-way Cycle passage of circular passage 5 composition.
Above-mentioned binary oil pipe, novel structure, adopt concentric double pipe one body technique and concentric double pipe tapered thread docking technique simultaneously, in concentric tube, form Two-way Cycle passage, reduce difficulty of construction and risk, easy for installation, result of use is good, and reliability is high, adopts tapered thread Butt sealing performance strong, narrow tube jamming failure will not be there is, it is possible to adapt to the application of deep-well oil-extraction technology.
Claims (1)
1. binary oil pipe, it is characterized in that: including: inner oil tube (1) and the outer oil pipe (2) being arranged concentrically with inner oil tube (1), it is connected with outer oil pipe (2) respectively through some connectors (3) outside described inner oil tube (1) two ends, internal channel (4) it is provided with in described inner oil tube (1), circular passage (5) it is provided with between described inner oil tube (1) and outer oil pipe (2), one end of described inner oil tube (1) and outer oil pipe (2) is respectively arranged with taper male thread (6), the other end of described inner oil tube (11) and outer oil pipe (2) is respectively arranged with the taper box thread (7) cooperated with taper male thread (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241767.2A CN105756579A (en) | 2016-04-19 | 2016-04-19 | Double-body oil tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241767.2A CN105756579A (en) | 2016-04-19 | 2016-04-19 | Double-body oil tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756579A true CN105756579A (en) | 2016-07-13 |
Family
ID=56335244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610241767.2A Pending CN105756579A (en) | 2016-04-19 | 2016-04-19 | Double-body oil tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105756579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10718457B2 (en) | 2018-04-16 | 2020-07-21 | Delensol Corp. | Apparatus for connecting wellsite tubing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351541Y (en) * | 1998-08-27 | 1999-12-01 | 辽河石油勘探局钻井二公司 | Non-hoop double-stage synchronous screwed pipe |
| CN201013259Y (en) * | 2007-02-15 | 2008-01-30 | 宝山钢铁股份有限公司 | Highly anti-torsion oil pipe |
| CN201265721Y (en) * | 2008-06-13 | 2009-07-01 | 辽河石油勘探局 | Non-coupling two-stage oil tube connection device |
| CN101566047A (en) * | 2008-10-21 | 2009-10-28 | 中国石油新疆油田分公司采油工艺研究院 | Concentric oil tubes |
| CN103629952A (en) * | 2012-08-29 | 2014-03-12 | 洛阳麦达斯铝业有限公司 | Tubular heat exchanger, method for manufacturing tubular heat exchanger and heat exchange equipment |
| CN203978311U (en) * | 2014-06-27 | 2014-12-03 | 西安中孚凯宏石油科技有限责任公司 | A kind of double layer oil pipe |
| CN104499965A (en) * | 2014-11-24 | 2015-04-08 | 中国石油天然气股份有限公司 | Sand washing concentric tube for low-pressure absorption well and assembling method of sand washing concentric tube |
| CN205577892U (en) * | 2016-04-19 | 2016-09-14 | 江苏省金峰石油机械制造有限公司 | Binary oil pipe |
-
2016
- 2016-04-19 CN CN201610241767.2A patent/CN105756579A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351541Y (en) * | 1998-08-27 | 1999-12-01 | 辽河石油勘探局钻井二公司 | Non-hoop double-stage synchronous screwed pipe |
| CN201013259Y (en) * | 2007-02-15 | 2008-01-30 | 宝山钢铁股份有限公司 | Highly anti-torsion oil pipe |
| CN201265721Y (en) * | 2008-06-13 | 2009-07-01 | 辽河石油勘探局 | Non-coupling two-stage oil tube connection device |
| CN101566047A (en) * | 2008-10-21 | 2009-10-28 | 中国石油新疆油田分公司采油工艺研究院 | Concentric oil tubes |
| CN103629952A (en) * | 2012-08-29 | 2014-03-12 | 洛阳麦达斯铝业有限公司 | Tubular heat exchanger, method for manufacturing tubular heat exchanger and heat exchange equipment |
| CN203978311U (en) * | 2014-06-27 | 2014-12-03 | 西安中孚凯宏石油科技有限责任公司 | A kind of double layer oil pipe |
| CN104499965A (en) * | 2014-11-24 | 2015-04-08 | 中国石油天然气股份有限公司 | Sand washing concentric tube for low-pressure absorption well and assembling method of sand washing concentric tube |
| CN205577892U (en) * | 2016-04-19 | 2016-09-14 | 江苏省金峰石油机械制造有限公司 | Binary oil pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10718457B2 (en) | 2018-04-16 | 2020-07-21 | Delensol Corp. | Apparatus for connecting wellsite tubing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |
|
| WD01 | Invention patent application deemed withdrawn after publication |