CN104594819A - Connection joint for non-metal continuous oil production pipe - Google Patents
Connection joint for non-metal continuous oil production pipe Download PDFInfo
- Publication number
- CN104594819A CN104594819A CN201510053262.9A CN201510053262A CN104594819A CN 104594819 A CN104594819 A CN 104594819A CN 201510053262 A CN201510053262 A CN 201510053262A CN 104594819 A CN104594819 A CN 104594819A
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- CN
- China
- Prior art keywords
- flow string
- nonmetal
- joint
- shaping cover
- jointing
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a connection joint for a non-metal continuous oil production pipe. A plurality of steel wires arranged at intervals along the circumference are arranged in a layer wall of an outermost side coated layer of the non-metal oil production pipe, wherein the connection joint comprises a joint body and fixing bodies; the joint body is in a cylindrical structure; the cylinder wall at one end of the joint body is divided along the thickness direction to form an upper part and a lower part; teeth are uniformly arranged on the opposite faces of the upper part and the lower part; each fixing body is ring-shaped and sleeves the outer circumference of the joint body; at least one through hole where one of the steel wires passes through is formed in each fixing body. The joint uses a combined manner of withheld connection and fixed connection of the steel wires and further can use a resin pouring connection manner; the bearing capacity of the joint using the three connection manners can achieve more than 2.5-3 times of the weight of the pipe, so that the using requirements of the oil production pipe can be completely met.
Description
Technical field
The present invention relates to a kind of flow string jointing, be specifically related to a kind of nonmetal continuous flow string jointing and method of attachment.
Background technology
The conventional connected mode of nonmetal pipeline comprises following three kinds: (1) electric melting sleeve connects, and uses melting joint between two thermoplastic pipes, and this connected mode exists the problems such as joint bearing capacity is lower of complex process, formation; (2) clip is directly socketed, and outside, two joints is provided with draw-in groove, is directly connected with draw-in groove place by clip, and this connected mode exists that connector construction is long, weight is large, connecting bolt is many and can not realize the problems such as mechanization laying; (3) withhold connection, by the socket end Inserting Tube of metal tube, pipe overcoat metallic sheath, is mechanically packed together to joint by metallic sheath, pipe and metal spigot end.All there is the lower problem of jointing firmness in these three kinds of joint styles.
Existing flow string joint and method of attachment are applicable to metallic conduit more, Chinese Patent Application No. 200910066656.2 discloses a kind of conductive continuous reinforced plastic composite pipe buckle press joint and withholds method, clad pipe is embedded into through buckle machine effect buckle press joint, and with engaging tooth and the fastening of clad pipe surfaces externally and internally, buckle press joint overcoat and hollow tube welded seal.But this kind of method pressure-bearing and supporting capacity limited, and be not suitable for the clad pipe of cable, wire rope and pipeline integration.
Chinese Patent Application No. 201320540986.2 discloses a kind of cable intermediate joint neo-epoxy resin cast containment vessel; containment vessel is made up of radome, shell and epoxy resin body; epoxy resin is filled into space in shell through hole for injecting glue, can strengthen intensity and the firmness of joint after solidification.The shortcomings such as epoxy resin filling agent improves polyurethane and quartz sand material not easily flows, fixed effect difference.
Summary of the invention
The invention provides a kind of nonmetal continuous flow string jointing, be generally applicable to nonmetal continuous flow string, be particularly useful for the flow string that cable, wire rope and pipeline are integrated, strengthen the pressure-bearing of joint, supporting capacity and firmness.
An object of the present invention is to provide a kind of nonmetal flow string jointing, be provided with many steel wires of circumferentially spaced-apart relation in the layer wall of the outermost clad of described nonmetal flow string, it is characterized in that, comprising:
Joint body, it is cylinder-like structure, and the barrel through-thickness of described joint body one end is cut open and formed upper and lower two parts, and the opposite face of described upper and lower two parts is provided with teeth; And
Fixed body, it is annular, is set in the periphery of described joint body, and has for one of them at least one through hole passed of described many steel wires.
Preferably, described nonmetal flow string jointing, is characterized in that, described teeth are annular teeth and swing to the direction of the described joint body other end.
Preferably, described nonmetal flow string jointing, is characterized in that, also comprise:
Shaping cover, it is circular sleeve, and described shaping cover is also set in the periphery of described joint body, and is limited between shaping cover and described joint body by described fixed body.
Preferably, described nonmetal flow string jointing, is characterized in that, the inwall of described shaping cover is close to the periphery of described fixed body.
Preferably, described nonmetal flow string jointing, the multi-cable of circumferentially spaced-apart relation is also provided with in the layer wall of the outermost clad of described nonmetal flow string, it is characterized in that, the periphery of described fixed body is also provided with at least one groove, and for described multi-cable, one of them passes described groove.
Preferably, described nonmetal flow string jointing, is characterized in that described fixed body having the through hole of the number equal with the quantity of described steel wire, and has the groove of the number equal with the quantity of described cable.
Preferably, described nonmetal flow string jointing, is characterized in that, also comprise: described shaping cover is that one end has centre bore end face, and the other end is the circular sleeve of opening, and described end face has at least one through hole around centre bore.
Preferably, described nonmetal flow string jointing, it is characterized in that, sealing flange, it is the annular with endoporus, is fixed on the described openend of shaping cover, and described sealing flange hole size mates with flow string outside dimension.
Another object of the present invention there is provided a kind of method of attachment of nonmetal oil recovery Pipe joint, it is characterized in that, said method comprising the steps of:
A, core pipe and sleeve weld form joint body, are inserted into by flow string in gap that the second teeth portion of joint body and the first teeth portion formed, the inside and outside wall of teeth portion fastening flow string;
B, fixed body is set in core pipe periphery and by screw thread precession core pipe; Through hole on the steel wire penetrating fixed body of flow string, afterwards wire rope more reverse pass from adjacent through-holes fixing, afterwards by the cable of flow string through fixed body groove;
C, shaping cover are also set in the periphery of core pipe, are fixed on the position near fixed body; Cable is passed the through hole of shaping cover, afterwards sealing flange is fixed on the openend of shaping cover, epoxy resin is poured in the accommodating cavity of shaping cover, flow string and jointing is closely integrally fixed after the health solidification through sky.
Beneficial effect of the present invention is that joint adopts the mode of withholding connection, the combination of fixation with steel wire connected mode, greatly improve pressure-bearing and the supporting capacity of jointing, further, can also connect by resin-cast, more than employing in 3 after connected mode, its anti-year intensity has reached more than 2.5 ~ 3 times of tubing deadweight, better meets the requirement that flow string uses; And this joint is generally applicable to nonmetal continuous flow string, is particularly useful for the flow string that cable, wire rope and pipeline are integrated.
Accompanying drawing explanation
Fig. 1 be joint of the present invention partly cut open schematic diagram.
Fig. 2 is core pipe of the present invention and outer sleeve johning knot composition.
Fig. 3 is fixed body front view of the present invention.
Fig. 4 is shaping cover sectional view of the present invention.
Fig. 5 is shaping cover lateral view of the present invention.
Fig. 6 is sealing flange structure chart of the present invention.
Fig. 7 is the tangent plane structure chart after joint of the present invention is connected with flow string.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to manual word to make those skilled in the art.
As shown in Figure 1, 2, core pipe 1 is the cylinder with accommodating cavity, is preferably metal material; Medium is carried by accommodating cavity, and metallic cylinder two ends are the different straight tubes of outside dimension, is connected between straight tube by a smooth overbank cylinder.Metallic cylinder external diameter is provided with the first teeth portion compared with the excircle of small end, is preferably annular teeth portion; The excircle of the larger end of metallic cylinder external diameter is provided with screw thread, can sheathed fixed body 2 and shaping cover 4 on its excircle.
Urceolus 3 is circular sleeves, is preferably metal material; A sleeve part is straight tube, and its inner periphery is provided with the second teeth portion, is preferably annular teeth portion; Sleeve another part is smooth oblique cylinder, and the external diameter of oblique cylinder front inner diameter and core pipe 1 oblique one end matches; The 1 oblique one end in oblique cylinder front end and core pipe is fixedly connected with, preferred as one, adopts welding manner to connect.Urceolus 3 and core pipe 1 are composed of a fixed connection joint body, and the second teeth portion is mutually corresponding with the first teeth position; Between the first teeth portion and the second teeth portion, there is gap, there is the effect of withholding, and as preferably a kind of, the teeth in the first teeth portion and the second teeth portion are unidirectional teeth, and unidirectional teeth better can hold on flow string; Gap between first teeth portion and the second teeth portion is for inserting the portion inner layer of flow string or flow string, and the first teeth portion and the second teeth portion have the effect clamping and hold flow string and do not exit.
As shown in Figure 3, fixed body 2 is circle shape parts, is preferably metal material; Circle ring inner surface is provided with screw thread, and the external diameter of its internal diameter size and the larger end of core pipe 1 external diameter matches, and can be set on core pipe 1; Torus has several through holes, preferred as one, torus has 6 through holes, through-hole diameter specification is mated with the wire rope in flow string, and wire rope is passed by through hole; Torus outer rim has several grooves, is preferably 3 grooves; Groove size and cable match, and wire rope is passed by groove; 3 grooves are for angularly to lay; Preferred as one, adjacent groove and through hole, angularly to arrange between through hole and through hole.
As shown in Figure 4,5, shaping cover 4 is for having the circular sleeve of accommodating cavity; Be preferably metal material; On the end face of shaping cover 4, have several through holes around central through hole, be preferably 3 through holes, 3 through holes are for angularly to lay; The cable of through-hole diameter specification and flow string matches, and the cable of flow string is passed by through hole; The external diameter of central through hole size and the larger end of core pipe 1 external diameter matches, and its inner surface is provided with screw thread; Shaping cover 4 other end is hatch frame, and opening size mates with sealing flange 5 outside dimension.
As shown in Figure 6, sealing flange 5 circle shape part, is preferably metal material; Torus has central through hole, and clear size of opening and flow string match, and flow string is passed by central through hole; Torus excircle is provided with screw thread, by screw thread precession qualitative cover 4 openend.
As shown in Figure 7, the present invention adopts and withholds the shape mode of three kinds of methods combining of connection, fixation with steel wire connection and resin-cast and be connected flow string, and its concrete implementation step is:
A, core pipe 1 be inserted in urceolus 3,1 oblique one end in oblique cylinder front end and core pipe of urceolus 3 is connected; After being welded to connect place, core pipe 1 and urceolus 3 integral connector body; Wire rope 7 and the cable 8 at position, flow string 6 front end are outside exposed, flow string main body is inserted in the gap of joint body, the inside and outside wall of the unidirectional teeth portion fastening flow string in the first teeth portion and the second teeth portion, can play clamping and hold the effect that flow string do not exit.
On the core pipe end excircle that b, fixed body 2 are set in joint body and by screw thread precession; Three wire rope 7 are through three non-conterminous through holes on fixed body 2, and wire rope 7 is reverse more afterwards passes fixing from other three through holes; Three cables 8 pass from three grooves of fixed body 2.
C, again shaping cover 4 being set on the core pipe end excircle of joint body, by being threaded into the position near fixed body 2, fixed body 2 being limited between shaping cover 4 and joint body; Three cables 8 are passed connector exterior from the through hole of three shaping cover 4; Afterwards by the openend of sealing flange 5 by screw thread precession shaping cover 4; Finally be poured in the accommodating cavity of shaping cover 4 by the epoxy resin of molten state, molten resin has good mobility, makes it be filled to each space of cavity; In the health solidification process of 2 days, epoxy resin is cross-linked with each other and is solidified into one with jointing adhesion.
Beneficial effect of the present invention is that joint adopts the mode of withholding connection, the combination of fixation with steel wire connected mode, greatly improve pressure-bearing and the supporting capacity of jointing, further, can also connect by resin-cast, more than employing in 3 after connected mode, its anti-year intensity has reached more than 2.5 ~ 3 times of tubing deadweight, better meets the requirement that flow string uses; And this joint is generally applicable to nonmetal continuous flow string, is particularly useful for the flow string that cable, wire rope and pipeline are integrated.
Although embodiment of the present invention are open as above, but it is not restricted to listed in manual and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (9)
1. a nonmetal continuous flow string jointing, many steel wires of circumferentially spaced-apart relation are provided with in the layer wall of the outermost clad of described nonmetal flow string, it is characterized in that, comprise: joint body, it is cylinder-like structure, the barrel through-thickness of described joint body one end is cut open and is formed upper and lower two parts, and the opposite face of described upper and lower two parts is provided with teeth; And fixed body (2), it is annular, is set in the periphery of described joint body, and has for one of them at least one through hole passed of described many steel wires.
2. nonmetal flow string jointing as claimed in claim 1, is characterized in that, described teeth are annular teeth and swing to the direction of the described joint body other end.
3. nonmetal flow string jointing as claimed in claim 2, is characterized in that, also comprise:
Shaping cover (4), it is circular sleeve, and described shaping cover (4) is also set in the periphery of described joint body, and is limited between shaping cover (4) and described joint body by described fixed body (2).
4. nonmetal flow string jointing as claimed in claim 3, is characterized in that, the inwall of described shaping cover (4) is close to the periphery of described fixed body (2).
5. nonmetal flow string jointing as claimed in claim 1, the multi-cable of circumferentially spaced-apart relation is also provided with in the layer wall of the outermost clad of described nonmetal flow string, it is characterized in that, the periphery of described fixed body (2) is also provided with at least one groove, and for described multi-cable, one of them passes described groove.
6. nonmetal flow string jointing as claimed in claim 5, is characterized in that, described fixed body (2) has the through hole of the number equal with the quantity of described steel wire, and has the groove of the number equal with the quantity of described cable.
7. according to the nonmetal flow string jointing one of claim 1-4 Suo Shu, it is characterized in that, also comprise: described shaping cover is that one end has centre bore end face, and the other end is the circular sleeve of opening, and described end face has at least one through hole around centre bore.
8. nonmetal flow string jointing according to claim 8, it is characterized in that, sealing flange (5), it is the annular with endoporus, be fixed on the described openend of shaping cover, described sealing flange (5) hole size mates with flow string outside dimension.
9. a method of attachment for nonmetal oil recovery Pipe joint, is characterized in that, said method comprising the steps of:
The welding of a, core pipe (1) and sleeve (3) forms joint body, flow string (6) is inserted in gap that the second teeth portion of joint body and the first teeth portion formed, the inside and outside wall of teeth portion fastening flow string (6);
B, fixed body (2) is set in core pipe (1) periphery and by screw thread precession core pipe (1); The wire rope (7) of flow string (6) is through the through hole on fixed body (2), afterwards wire rope more reverse pass from adjacent through-holes fixing, afterwards by the cable (8) of flow string through fixed body (2) groove;
C, shaping cover (4) are also set in the periphery of core pipe (1), cable (8) passes the through hole of shaping cover (4), afterwards sealing flange (5) is fixed on the openend of shaping cover (4), epoxy resin (9) is poured in shaping cover (4) accommodating cavity, flow string (6) and jointing is closely integrally fixed after the health solidification of 2 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053262.9A CN104594819B (en) | 2015-02-02 | 2015-02-02 | A kind of nonmetal continuous flow string jointing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053262.9A CN104594819B (en) | 2015-02-02 | 2015-02-02 | A kind of nonmetal continuous flow string jointing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594819A true CN104594819A (en) | 2015-05-06 |
| CN104594819B CN104594819B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510053262.9A Expired - Fee Related CN104594819B (en) | 2015-02-02 | 2015-02-02 | A kind of nonmetal continuous flow string jointing |
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| CN (1) | CN104594819B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089114A (en) * | 2016-07-22 | 2016-11-09 | 胜利油田新大管业科技发展有限责任公司 | A kind of high temperature resistant built-up joint of continuous sucker rod made of fiber reinforced composition and method |
| CN108005587A (en) * | 2017-12-30 | 2018-05-08 | 中国石油天然气股份有限公司 | A kind of triple channel continuous flexible multiple tube jointing and installation method |
| CN109382451A (en) * | 2018-11-22 | 2019-02-26 | 湖北理工学院 | A kind of desk-top buckle machine |
| CN114683563A (en) * | 2020-12-25 | 2022-07-01 | 中国石油化工股份有限公司 | Machining and mounting method of oil production pipe joint and oil production pipe joint |
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| CN203476235U (en) * | 2013-10-15 | 2014-03-12 | 杭州欧佩亚海洋工程有限公司 | RTP pipe buckling connector for strengthening anti-stretching and anti-twisting capacity |
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Patent Citations (7)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089114A (en) * | 2016-07-22 | 2016-11-09 | 胜利油田新大管业科技发展有限责任公司 | A kind of high temperature resistant built-up joint of continuous sucker rod made of fiber reinforced composition and method |
| CN106089114B (en) * | 2016-07-22 | 2019-03-19 | 胜利油田新大管业科技发展有限责任公司 | A kind of continuous sucker rod made of fiber reinforced composition high temperature resistant built-up joint and method |
| CN108005587A (en) * | 2017-12-30 | 2018-05-08 | 中国石油天然气股份有限公司 | A kind of triple channel continuous flexible multiple tube jointing and installation method |
| CN108005587B (en) * | 2017-12-30 | 2023-05-26 | 中国石油天然气股份有限公司 | Three-channel continuous flexible composite pipe connecting joint and installation method |
| CN109382451A (en) * | 2018-11-22 | 2019-02-26 | 湖北理工学院 | A kind of desk-top buckle machine |
| CN114683563A (en) * | 2020-12-25 | 2022-07-01 | 中国石油化工股份有限公司 | Machining and mounting method of oil production pipe joint and oil production pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104594819B (en) | 2016-10-05 |
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Effective date of registration: 20170912 Address after: 124200 Liaoning province Panjin City Dawa Port Economic Zone Patentee after: LIAONING XIANGYU SPECIAL PIPELINE CO., LTD. Address before: 130000 Jilin province Changchun high-tech development zone all hang Road No. 66 Patentee before: Changchun Golsun Special Pipe Co., Ltd. |
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Granted publication date: 20161005 Termination date: 20200202 |
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