CN205206762U - Two -way concatenation tubular product - Google Patents
Two -way concatenation tubular product Download PDFInfo
- Publication number
- CN205206762U CN205206762U CN201520853853.XU CN201520853853U CN205206762U CN 205206762 U CN205206762 U CN 205206762U CN 201520853853 U CN201520853853 U CN 201520853853U CN 205206762 U CN205206762 U CN 205206762U
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- CN
- China
- Prior art keywords
- out pipe
- clean out
- sand clean
- open slot
- sand washing
- 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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Abstract
The utility model discloses a tubular product of sand washing operation usefulness, in particular to two -way concatenation tubular product. Two -way concatenation tubular product, including interior sand washing pipe and outer sand washing pipe, interior sand washing pipe locates in the outer sand washing pipe, interior sand washing pipe and outer sand washing pipe all include the ring body that docks a set of front and back, the ring body includes a set of arc of controlling the butt joint, still includes the open slot, the open slot is located between two adjacent arcs of interior sand washing pipe, interior sand washing pipe both sides are equipped with the spliced pole of being made by the concrete respectively, the spliced pole supports respectively and leans on interior sand washing pipe outer wall with on the outer sand washing pipe inner wall, have at least one section spliced pole to extend to in the open slot. The higher technical defect of cost of manufacture who exists has been overcome to this patent among the prior art, provide one kind and assembled the two -way concatenation tubular product who reduces the cost of manufacture through the combination.
Description
Technical field
The utility model relates to the tubing of a kind of sand washing operation, the particularly two-way splicing tubing of one.
Background technology
Along with the development process in oil field, most domestic old filed has entered the middle and later periods of oil field development, main productive formation section water injection time is long, water injection intensity large, shakes out day by day serious, there is again shorting in various degree simultaneously, cause reservoir pressure coefficient low, thus shaft bottom sand setting thoroughly cannot be cleaned out when causing sand washing operation, its direct result is the effective sand setting insufficient space in shaft bottom, frequently occurs that sand buries oil reservoir, pump detection period is caused to shorten, the frequent operation of oil well.Meanwhile, return conventional sand washing operation and bring great construction risk, easily cause that sand buries oil reservoir, sand card tubing string turns overhaul, sand washing and many production unfavorable factors such as not return.
Oil-water well sand wash operation is the routine operation of light maintenance operation, and existing sand-flushing pipe column, sand flushing tool, scouring equipment can meet the sand washing operation of conventional oil-water well substantially.A kind of sand washing concentric tube for low-pressure absorption well that such as Chinese patent CN104499965 provides, comprise interior sand clean out pipe and outer sand clean out pipe, described interior sand clean out pipe is placed in described outer sand clean out pipe, and gap-forming toroidal cavity between the two, special-shaped box cupling suit is fixed on the upper end of described outer sand clean out pipe, upper seal nipple arranges through hole, and described upper seal nipple is fixed on the upper end of described interior sand clean out pipe by described through hole suit; On the outer wall of described upper seal nipple, interval arranges multiple raised ribs, and described raised ribs radially extends to the internal face of described special-shaped box cupling and is fixedly connected with it; Described interior sand clean out pipe and described outer sand clean out pipe are linked into an integrated entity by described special-shaped box cupling and described upper seal nipple.
But still there is following technological deficiency in above-mentioned technology: a cun specification to the greatest extent for interior sand clean out pipe and outer sand clean out pipe is one-body molded more greatly and all, each all needs, according to the raw inside and outside sand clean out pipe designing concrete size of the operating environment of reality, then carries out die sinking again, founding is shaped.Mould utilization rate is low, and percent defective is high, directly increases the cost of manufacture of inside and outside sand clean out pipe like this.
Utility model content
The utility model is intended to the two-way splicing tubing providing a kind of cost of manufacture lower.
Two-way splicing tubing in this programme, comprise interior sand clean out pipe and outer sand clean out pipe, described interior sand clean out pipe is located in outer sand clean out pipe, described interior sand clean out pipe and outer sand clean out pipe include the ring body of one group of tandem docking, described ring body comprises about the one group arc docked, described ring body and otic placode arc is equipped with for docking, be provided with the staple be arranged on otic placode between adjacent ring body, adjacent arc is provided with the connected nail be arranged on otic placode; Also comprise open slot, in described in the length direction of described open slot, sand clean out pipe is consistent, described open slot is located between the adjacent arc of two pieces of described interior sand clean out pipe, and the notch of open slot sand clean out pipe toward the outside, and described open slot is fixed on the otic placode of arc by described connected nail; Described interior sand clean out pipe both sides are respectively equipped with the joint pin be made up of concrete, and described joint pin is resisted against on described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall respectively; One section of joint pin is had at least to extend in described open slot.
Adopt the technical solution of the utility model, there is following technique effect:
1, by described inside and outside sand clean out pipe segmentation point some ring bodies, again ring body is divided into some arcs, during such die sinking, only needs to make the mould of a pair about arc respectively to interior sand clean out pipe and outer sand clean out pipe.But extended distance according to actual needs, arc is spliced into ring body, then ring body is spliced into inside and outside sand clean out pipe.The die sinking cost of two-way splicing tubing of the present utility model is lower, and the shape specification unification degree of the arc produced by same mould is high, not easily produces waste product.
2, considering the fixation problem of inside and outside sand clean out pipe, connecting inside and outside sand clean out pipe by arranging in described interior sand clean out pipe both sides the joint pin be made up of concrete, interior sand clean out pipe is fixed by support in sand clean out pipe outside; Due to the space between inside and outside sand clean out pipe can not be closed completely, so described joint pin can only be arranged on interior sand clean out pipe both sides, the periphery of sand clean out pipe in covering completely can not be closed.Because the bonding strength of concrete and tubing is not enough, so one section of joint pin at least will be had to extend in described open slot, makes joint pin and open slot form the connected mode of grafting, be convenient to joint pin and locate between inside and outside sand clean out pipe.
3, when making described joint pin, can not make in advance as described arc, must after described inside and outside sand clean out pipe be shaped location, adopt wooden boards that the cavity holding described joint pin is set between inside and outside sand clean out pipe, then in cavity, concrete is injected, change into after shape until concrete dry, then remove described wooden boards, the two-way splicing tubing described in final formation.
Further, described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall are also provided with aluminium oxide ceramics scuff-resistant coating.
In order to prevent the table wall excessive wear between described inside and outside sand clean out pipe, spy arranges aluminium oxide ceramics scuff-resistant coating on described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall.
Further, be equipped with described open slot between any two adjacent arcs of described interior sand clean out pipe, all open slots all dock with joint pin.
Multiple open slot can be set, namely between any two adjacent arcs of interior sand clean out pipe, all arrange one, and each open slot all dock with a joint pin, is conducive to strengthening the connection between interior sand clean out pipe, joint pin and outer sand clean out pipe.
Further, described outer sand clean out pipe outer wall is provided with ring stiffener.
Ring stiffener is set, the bearing strength of described outer sand clean out pipe can be strengthened.
Accompanying drawing explanation
Fig. 1 is the structural representation of ring body in the utility model two-way splicing tubing embodiment.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is that Fig. 2 position is corresponding, and ring body coordinates the structural representation assembled with joint pin.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Reference numeral in Figure of description comprises: joint pin 50, connected nail 34, reinforcing rib 32, otic placode 31, arc 20, staple 33, open slot 35, aluminium oxide ceramics scuff-resistant coating 40.
The two-way splicing tubing of the present embodiment, comprise interior sand clean out pipe and outer sand clean out pipe, described interior sand clean out pipe is located in outer sand clean out pipe, and described interior sand clean out pipe and outer sand clean out pipe include the ring body of one group of tandem docking, namely docks the inside and outside sand clean out pipe described in being formed successively by described ring body.Because the caliber of interior sand clean out pipe is less than outer sand clean out pipe, in described formation, the bore of the ring body of sand clean out pipe is naturally little than the bore forming outer sand clean out pipe.
Gap between the inner chamber of described interior sand clean out pipe and inside and outside sand clean out pipe all can be used to transmit material.
As shown in Figure 1, described ring body comprises the arc 20 of about three pieces docking, and described ring body and the otic placode 31 arc 20 is equipped with for docking, be provided with the staple 33 be arranged on otic placode 31 between adjacent ring body.
As shown in Figures 1 to 3, described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall are also provided with aluminium oxide ceramics scuff-resistant coating 40.Described aluminium oxide ceramics scuff-resistant coating 40 is, with high temperature resistant tenacity viscose, alumina ceramic plate is pasted onto inner-walls of duct or outer wall, after heating cure form firm scuff-resistant coating.Described outer sand clean out pipe outer wall is provided with ring stiffener 32.
Adjacent arc 20 is provided with the connected nail 34 be arranged on otic placode 31.As shown in Figure 1, 2, the otic placode 31 of outer sand clean out pipe is mainly arranged on the outer wall of outer sand clean out pipe, and the otic placode 31 of described interior sand clean out pipe is mainly arranged on the inwall of interior sand clean out pipe.
As shown in Figure 3, described interior sand clean out pipe both sides are respectively equipped with one section of joint pin be made up of concrete 50, and every section of joint pin 50 is resisted against on the aluminium oxide ceramics scuff-resistant coating 40 of described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall respectively.
As shown in Figure 1,3, the two-way splicing tubing of the present embodiment also comprises an open slot 35, in described in the length direction of described open slot 35, sand clean out pipe is consistent, described open slot 35 is located between the adjacent arc 20 of two pieces of described interior sand clean out pipe, and the notch of open slot 35 sand clean out pipe toward the outside, wherein one section of joint pin 50 extends in described open slot 35.Described open slot 35 is fixed on the otic placode 31 of arc 20 by described connected nail 34.
Only be provided with an open slot 35 in the present embodiment, several pieces can certainly be arranged more, as all established an open slot 35 between any two adjacent arcs 20 of interior sand clean out pipe; Corresponding joint pin 50, open slot 35 correspondence that also will arrange respective amount is docked with a joint pin 50.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in manual etc. record the content that may be used for explaining claim.
Claims (4)
1. two-way splicing tubing, comprise interior sand clean out pipe and outer sand clean out pipe, described interior sand clean out pipe is located in outer sand clean out pipe, it is characterized in that, described interior sand clean out pipe and outer sand clean out pipe include the ring body of one group of tandem docking, and described ring body comprises about the one group arc docked, described ring body and otic placode arc is equipped with for docking, be provided with the staple be arranged on otic placode between adjacent ring body, adjacent arc is provided with the connected nail be arranged on otic placode; Also comprise open slot, the length direction of described open slot is consistent with described interior sand clean out pipe, described open slot is located between the adjacent arc of two pieces of described interior sand clean out pipe, and the notch of open slot sand clean out pipe toward the outside, and described open slot is fixed on the otic placode of arc by described connected nail; Described interior sand clean out pipe both sides are respectively equipped with the joint pin be made up of concrete, and described joint pin is resisted against on described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall respectively; One section of joint pin is had at least to extend in described open slot.
2. two-way splicing tubing according to claim 1, is characterized in that: described interior sand clean out pipe outer wall and described outer sand clean out pipe inwall are also provided with aluminium oxide ceramics scuff-resistant coating.
3. two-way splicing tubing according to claim 2, is characterized in that: be equipped with described open slot between any two adjacent arcs of described interior sand clean out pipe, all open slots all dock with joint pin.
4. two-way splicing tubing according to claim 3, is characterized in that: described outer sand clean out pipe outer wall is provided with ring stiffener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853853.XU CN205206762U (en) | 2015-10-31 | 2015-10-31 | Two -way concatenation tubular product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853853.XU CN205206762U (en) | 2015-10-31 | 2015-10-31 | Two -way concatenation tubular product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205206762U true CN205206762U (en) | 2016-05-04 |
Family
ID=55844487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520853853.XU Expired - Fee Related CN205206762U (en) | 2015-10-31 | 2015-10-31 | Two -way concatenation tubular product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205206762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019202386A1 (en) * | 2018-04-16 | 2019-10-24 | Michael Haynes | Apparatus for connecting wellsite tubing |
-
2015
- 2015-10-31 CN CN201520853853.XU patent/CN205206762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019202386A1 (en) * | 2018-04-16 | 2019-10-24 | Michael Haynes | Apparatus for connecting wellsite tubing |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |