CN1204379A - Tubing connector - Google Patents
Tubing connector Download PDFInfo
- Publication number
- CN1204379A CN1204379A CN 96198907 CN96198907A CN1204379A CN 1204379 A CN1204379 A CN 1204379A CN 96198907 CN96198907 CN 96198907 CN 96198907 A CN96198907 A CN 96198907A CN 1204379 A CN1204379 A CN 1204379A
- Authority
- CN
- China
- Prior art keywords
- connector
- joint
- parts
- retainer
- expansible
- 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
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
- E21B43/106—Couplings or joints therefor
Abstract
A tubing connector for joining the ends of two expandable tubing (10, 11) comprises two expandable tubular portions (16, 17) for mounting on the ends of the lengths of expandable tubing. Each portion (16, 17) includes a plurality of circumferentially spaced couplings (20, 21) for engaging corresponding couplings on the other portion. The engaging parts of the couplings (24, 25) are located on parts of the tubular portions which are substantially undeformed following expansion of the tubular portions.
Description
The present invention relates to a tube connector, in particular for a connector of expansible tube coupling connection.
In conjunction with reference to by the disclosed document of WO-A-93/25800 (shell international research), it has been described on ground and has downloaded the method that realizes the no housing parts of a boring in the oil rock layer structure at this.One expansible sleeve pipe is provided with staggered cannelure, and it is fixed on the interior precalculated position of boring.A cone expansion axle is passed sleeve pipe then, and makes the maximum gauge of the diameter of expanded casing greater than axle.Ideally, sleeve pipe is expanded up to contacting with hole wall.
In some applications, expectation provides the long boring section of being with the sleeve pipe that has groove.Before sleeve pipe is sent into boring, need with two or the cover tube coupling that has groove more couple together on its surface.Usually, the cover tube coupling is welded together, still because welding process rises temperature, thus this scheme expend time in and operate in potential danger is arranged.The heat that is produced by welding process also can influence the performance at the cannula tip metal.Simultaneously, it is very difficult obtaining constant welding quality, for example: especially carry out welding operation under the open-air situation of inshore facility.In addition, when sleeve pipe being sent into when boring, if run into any problem, bunch tube must be removed, and the tube coupling of taking welding apart is impossible, it must be cut, and the pipe of cut-out may have to be scrapped.
One of purpose of the embodiment of the invention provides a tube connector, and it will eliminate or slow down some above-mentioned shortcomings at least.
Provide a tube connector in order to connect the end of two expansible tube couplings according to a first aspect of the invention, connector comprises that two expansible tubulose parts are in order to be installed in the end of expansible tube coupling, each tubular portion comprises: the joint that is provided with at interval on many circumference is in order to be bonded on corresponding joint on another part, and the mating part that are set at the joint on the parts of tubular portion with the expansion of tubular portion substantive distortion do not take place.
Use with the distensible tube of staggered cannelure as the groove of feature, tubular portion can comprise: corresponding vertically staggered groove is set, so that connected tubular portion presents the groove with the pipe similar shapes, joint is arranged on the node between the axially-aligned groove end.
For thickness from the material that is connected joint butt joint accordingly or engages part to connection that necessary intensity is provided, often need makes greater than all the other places of tubular portion or the thickness of distensible tube itself, so that joint can be at the interior or external surface of pipe by upset(ting).
Best, joint can be opened, and if desired, can make tube coupling separately.
Simultaneously best, the cooperation of joint or mating part can be defined as such as cooperating slip feather and groove or pin and hole, and joint can be threaded, and joint can be defined as tooth or grooving.Usually joint is set to protruding, female type, that is: a joint axis is in being received within another joint.In addition, by using any suitable mode or its combinations such as adhesive, radial screw or pin, joint can be interfixed.
That one embodiment of joint is is protruding, female type and limit respective threads, and outer recessed connector comprises a retainer, and it is to a location bias that engages corresponding convex joint.Best, this retainer is placed on the retracted position at first, once joint when being placed on the desired relative position, can engage its release with protruding connector.Usually, retainer adopts the form of propping up the latch on spring.
Simultaneously best, each joint longitudinal length is limited to the parts of tubular portion, and each parts with the expansion of tubular portion substantive distortion does not take place.Joint can continue the parts that covered the tubular portion that might be out of shape in other embodiments.
Joint can be in conjunction with expansible tube coupling setting.
Tubular part can comprise the loading and unloading convex shoulder that radially extends, so that each tube coupling of handling.
Tubular part and each tube coupling can be an integral body, maybe can separately form; And with tube coupling welding or otherwise be connected.In the former scheme, the end of tube coupling is machined or otherwise is shaped and constitutes tubular part.In the latter's scheme, tubular part can partly form at least, then to weld or otherwise to fix with tube coupling; In a most preferred embodiment, in case tubular portion welds together with each tube coupling, cannelure on the tube coupling and tubular portion will form.
Another aspect of the present invention provides a tube connector in order to connect the end of two expansible tube couplings, and connector comprises that expansible tubulose part is in order to be installed in respectively on the expansible tube coupling; Each expansible tubulose partly has a junction spare in order to connect the link of another tubular portion, the diameter of first link is second coupling part to receive, thereby expansible connector limits a upset(ting) part, first and second links overlap joint described herein.
Carry out although upset(ting) is preferably in the outside usually, upset(ting) also can be externally or inside carry out.Engage by engaging hole wall or being expanded to cement with connector, outside upset(ting) helps and will be fixed in the hole by convergent divergent channel.
Each upset(ting) part material, metal normally, thickness is generally equal to the twice of tube thickness or expansible tubulose segment thickness.
In accordance with a further aspect of the present invention, an expansible connector is set, is used to connect the end of two expansible tube couplings, this connector comprises: the first and second expansible tubulose parts, on the end that is installed in each expansible tube coupling respectively; First comprises: many retainers that are provided with at interval on circumference, each retainer to the location bias that is extended in order to engage second portion, retainer is placed on the position of contracting at first, in case two parts are combined together, retainer can be released to being extended the position and move to engage with second portion.
According to a further aspect in the invention, a connector is set, comprises first and second screwed parts, first parts comprise the retainer to the biasing of second parts, wherein, be connected together in case parts have been twisted by spiral, then retainer engages second parts to limit the relative rotation of these parts.
Best, this retainer is placed on the retracted position at first, and permitting the relative rotation of parts, and retainer can be released, in a suitable point and second part bonding.Usually, retainer adopts the form of propping up the latch on spring.This pin can be set in the hole on first parts, and the intermediate plate by extracting double pointed nail is drawn out of by the outside of parts, and it is placed in the external surface of first parts.
Now, will be described these and other aspect of the present invention by embodiment with reference to accompanying drawing, wherein:
Fig. 1 is in the most preferred embodiment of the present invention, and the lateral view of two distensible tubes joint uses tube connector that they are coupled together;
Fig. 2 is the sectional view of pipe among Fig. 1;
Fig. 3 to Fig. 9 is the amplification sectional view of the tube connector parts of root a tree name various embodiments of the present invention;
Figure 10 and 11 is the amplification sectional view of Fig. 9 connector;
Figure 12 and 13 is for the sectional view of the described on the other hand tube connector parts of the present invention.
Here at first relating to accompanying drawing 1 and accompanying drawing 2, is two expansible tube couplings 10,11 of fluting in the longitudinal direction described in the figure, according to a most preferred embodiment of the present invention, uses connector 12 that they are coupled together. Tube coupling 10,11 is provided with staggered in the longitudinal direction groove 14 (only some grooves show clear by figure), so that pipe expanded, as \ 25800 (international surveys of shell) are described at WO-A-93.Connector 12 comprises two expansible tubulose parts 16,17, has the groove that has similar form with tube coupling 10,11 on it. Tubular portion 16,17 is welded to the end of tube coupling 10,11 respectively, and fluting makes tubular portion 16,17 and tube coupling 10,11 consistent expansions then.In addition, the 16a of tubular portion shown in the figure, 17a also are expressed on the free end that is installed to tube coupling 10,11.
Each tube coupling 10,11 is installed many loading and unloading convex shoulders, and corresponding convex shoulder 19 is arranged on the tubular portion 16,17.When loading and unloading with hand and transporting various parts, convex shoulder 18,19th, useful; Just as will be described, when connecting tubular portion 16,17 o'clock, also can use convex shoulder 18,19.
Each tubular portion 16,17 is included in the joint 20,21 that circle spacing on many its free ends is provided with, in order to engage with a corresponding joint on another tubular portion 16,17; Joint 20,21 is arranged on node 22 places between the two ends of groove 14 on the tubular portion 16,17, and when tubular portion 16,17 during by expansion, the metal at node 22 places does not produce substantive deformation.
Accompanying drawing 3 shows the details of pair of joint 20,21.Can notice that joint 20 limits a female thread portion 24, it limits an internal thread and joint 21 limits a corresponding male thread portion 25, and it has an external screw thread; The end of internal and external screw thread part 24,25 also has grooving to reduce the possibility of radial separation.In addition, two screws 26,27 are fixed together internal and external screw thread part 24,25.
The thickness of metal that can notice the combination that is connected joint 20,21 is greater than the thickness of adjacency tubular portion 16,17, so that this type of attachment is unsuitable for having the distensible tube of level and smooth or flat outer surface.
Accompanying drawing 4 shows and has nipple 60,61 that it can be reversed.
Accompanying drawing 5 shows the joint 64,65 that limits an insertion connector, and joint 64,65 can be pressed against together simply just, and single screw 66 also is set for each butt joint 64,65 is fixed together.
Fig. 6 shows a scheme, and wherein a joint 70 limits a screw thread slip feather 72 that is put by groove 74, and a cover cap 75 that is fixed on another joint 71 limits a groove 74.In addition, a screw 76 is set up in order to joint 70,71 is fixed together.
Fig. 7 shows the joint 80,81 that limits the ratchet screw thread 82,83 with a relief angle, and it comprises a hold-down screw 84.
Fig. 8 shows the joint 88,89 with screw thread, and they are fixed together by two screws 90,91.
Accompanying drawing 9 shows the joint 130,131 in another embodiment of the present invention now.Shaft coupling 130,131 limits hook-shaped or ratchet screw thread 132,133 and undercutting bottom face 134,135 in this example.In addition, joint 130 comprises a latch 136 on spring, and its details can be seen in Figure 10 and 11.Latch 136 is by acting on a projection 142 and having radially inwardly biasing of a holddown spring 140 between the retainer of screw thread, and projection 142 is limited on the latch 136; One has adopted the screw thread retainer of thread-cutting screw 144 forms to be fixed on the outer face in the hole 146 that holds latch 136.Thereby latch 136 is radially inwardly setovered, but is fixed on the position of shrinking (Figure 10) with playing spring clip 148 at first, and spring clip 148 is bonded on a ring-shaped groove 150 places on latch 136 outer faces.Once joint 130,131 has assembled, 148 of spring clips are removed, and the head of latch 136 extends into corresponding grooves 152 on joint 131 end faces then, to prevent the relative rotation of joint 130,131.
Figure 12 and 13 shows joint 160,161, and it limits screw thread 162,163 and has the slip feather end 164,165 that engages with respective groove on another joint, to prevent to cause owing to the connector expansion separation of joint 160,161.As the embodiment shown in Fig. 9,10 and 11, joint 160 comprises a latch or a lock 166 on spring, and still, in this embodiment, pin 168 has a thread head 170 and use a helical spring 172 movably.
The purpose of all embodiment described above is for firm, make expansible tube coupling rapidly, safety assembles in the job location.Connect employed special shape and depend on special purposes.
Obviously, for the technician of the industry, the above embodiments only are typical cases of the present invention, can make various modifications to this and improve not departing from the scope of the present invention.
Claims (23)
1. tube connector that is used to connect two expansible tube coupling ends, connector comprises: in order to be installed in two distensible tube parts on the expansible tube coupling end, each distensible tube partly comprises: the joint that many circle spacings are provided with, in order to engaging corresponding joint on another part, the mating part of joint are set at not expansion with tubular portion and take place on the parts of tubular portion of substantive distortion.
2. connector according to claim 1 is characterized in that: described tubular portion comprises: the groove in the vertical that is crisscross arranged, and it limits the node between the axially-aligned groove end, and joint is set on the node.
3. connector according to claim 1 and 2 is characterized in that: on the connected joint thickness of material greater than the thickness of tubular portion remainder so that joint at tube-surface by upset(ting).
4. according to claim 1,2 or 3 described connectors, it is characterized in that: engaged joint is dismountable, so that connected tube coupling separately.
5. according to each described connector of claim 1 to 4, it is characterized in that: the bonding part of joint limits slip feather and the groove that cooperates.
6. according to each described connector of claim 1 to 4, it is characterized in that: the bonding part of joint limits pin and the hole that cooperates.
7. according to the described connector of above-mentioned each claim, it is characterized in that: joint has screw thread.
8. according to the described connector of above-mentioned each claim, it is characterized in that: joint limits cutting.
9. according to the described connector of above-mentioned each claim, it is characterized in that: joint limits undercutting.
10. according to the described connector of above-mentioned each claim, it is characterized in that: joint is the convex-concave form.
11. according to the described connector of above-mentioned each claim, it is characterized in that: by adhesive, joint can interfix.
12. according to the described connector of above-mentioned each claim, it is characterized in that: by the securing member that radially extends, joint can interfix.
13. according to the described connector of above-mentioned each claim, it is characterized in that: joint is the convex-concave form; And the qualification respective threads, outer recessed connector comprises a retainer, retainer is to a location bias that engages corresponding protruding connector.
14. connector according to claim 13 is characterized in that: this retainer is placed on the retracted position at first, in case when joint is placed on the desired relative position, can be released with the convex connector and engages.
15. according to claim 13 or 14 described connectors, it is characterized in that: retainer adopts the form of propping up the latch on spring.
16. according to the described connector of above-mentioned each claim, it is characterized in that: tubular portion comprises the loading and unloading convex shoulder that radially extends.
17., it is characterized in that: expansible tube coupling is linked together according to the described connector of above-mentioned each claim.
18. expansible connector that is used to connect two expansible tube coupling ends, this connector comprises: the first and second expansible tubulose parts, on the end that is installed in each expansible tube coupling, first comprises: the retainer that many circle spacings are provided with, each retainer to the location bias that is extended in order to engage second portion, retainer is placed on the position of contracting at first, in case these two parts have been engaged in together, retainer can be released to being extended the position and move with second portion and engage.
19. a connector comprises: first and second screwed parts, first parts comprise: a retainer to the biasing of second parts, wherein,, two parts are connected together in case having been twisted by spiral, and then retainer engages second parts to limit the relative rotation of a parts.
20. connector according to claim 19 is characterized in that: this retainer is placed on the retracted position at first, and permitting the relative rotation of parts, and retainer can be released, in a suitable point and second part bonding.
21. connector according to claim 20 is characterized in that: retainer adopts the form of propping up the latch on spring.
22. connector according to claim 21 is characterized in that: this pin is arranged in the hole on first parts, and by extracting an intermediate plate of double pointed nail, pin can be drawn out of by the outside of parts, is placed in the external surface of first parts.
23. expansible connector that is used to connect two expansible tube coupling ends, this connector comprises: expansible tubulose partly is installed on the expansible tube coupling, each expansible tubulose partly has a junction branch in order to be connected with the coupling part of another tubular portion, the diameter of the first pontes is greater than the diameter of second coupling part that will receive, thereby, limited a upset(ting) part by the expansion connector, described first and second links overlap joint at this upset(ting) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96198907 CN1204379A (en) | 1995-12-09 | 1996-12-09 | Tubing connector |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9623797.9 | 1996-11-15 | ||
| GB9525244.1 | 1996-11-15 | ||
| CN 96198907 CN1204379A (en) | 1995-12-09 | 1996-12-09 | Tubing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1204379A true CN1204379A (en) | 1999-01-06 |
Family
ID=5129209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96198907 Pending CN1204379A (en) | 1995-12-09 | 1996-12-09 | Tubing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1204379A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906942A (en) * | 2010-07-29 | 2010-12-08 | 四川宏华石油设备有限公司 | Pipe connector |
| CN101793127B (en) * | 2009-12-24 | 2012-03-28 | 张键 | Anti-tripping reverse buckling device |
| CN101802344B (en) * | 2007-06-29 | 2013-02-27 | 杰弗里·A·斯波瑞 | Connections for expandable tubulars |
| CN104126050A (en) * | 2012-01-19 | 2014-10-29 | 贝克休斯公司 | Counter device for selectively catching plugs |
| CN104314479A (en) * | 2014-10-27 | 2015-01-28 | 中国石油天然气股份有限公司 | Connecting component of expansion screen pipe |
| CN114233250A (en) * | 2021-12-15 | 2022-03-25 | 中国石油大学(北京) | Installation device and installation method of deepwater combined casing |
-
1996
- 1996-12-09 CN CN 96198907 patent/CN1204379A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101802344B (en) * | 2007-06-29 | 2013-02-27 | 杰弗里·A·斯波瑞 | Connections for expandable tubulars |
| CN101793127B (en) * | 2009-12-24 | 2012-03-28 | 张键 | Anti-tripping reverse buckling device |
| CN101906942A (en) * | 2010-07-29 | 2010-12-08 | 四川宏华石油设备有限公司 | Pipe connector |
| CN101906942B (en) * | 2010-07-29 | 2014-01-29 | 四川宏华石油设备有限公司 | Pipe connector |
| CN104126050A (en) * | 2012-01-19 | 2014-10-29 | 贝克休斯公司 | Counter device for selectively catching plugs |
| CN104126050B (en) * | 2012-01-19 | 2016-08-10 | 贝克休斯公司 | Counter device for selectivity capture connector |
| CN104314479A (en) * | 2014-10-27 | 2015-01-28 | 中国石油天然气股份有限公司 | Connecting component of expansion screen pipe |
| CN114233250A (en) * | 2021-12-15 | 2022-03-25 | 中国石油大学(北京) | Installation device and installation method of deepwater combined casing |
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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 | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |