CN202970573U - Combined reducing expansion cone of expansion tube - Google Patents
Combined reducing expansion cone of expansion tube Download PDFInfo
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- CN202970573U CN202970573U CN 201220592502 CN201220592502U CN202970573U CN 202970573 U CN202970573 U CN 202970573U CN 201220592502 CN201220592502 CN 201220592502 CN 201220592502 U CN201220592502 U CN 201220592502U CN 202970573 U CN202970573 U CN 202970573U
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Abstract
The utility model discloses a combined reducing expansion cone of an expansion tube. The combined reducing expansion cone comprises an expansion upper base which is connected at the lower end of the expansion tube; expansion sub sections include a plurality of expansion upper sub sections and a plurality of expansion lower sub sections, wherein one ends of the expansion upper sub sections are connected with the expansion upper base; the plurality of expansion upper sub sections and the plurality of expansion lower sub sections are alternately arranged along the circumferential direction, and are capable of being combined into an expansion cone in a relative sliding way; a slide connecting structure is arranged between the expansion upper sub sections and the expansion lower sub sections; the slide connecting structure comprises slide slots and slide blocks, wherein the slide slots are arranged at one sides of the expansion upper sub sections; the slide blocks protrude at one sides of the adjacent expansion lower sub sections; the slide blocks can be arranged in the slide slots in a sliding way; or the slide connecting structure comprises the slide slots and the slide blocks, wherein the slide slots are arranged at one sides of the expansion lower sub sections; the slide blocks protrude at one sides of the adjacent expansion upper sub sections; the slide blocks can be arranged in the slide slots in a sliding way; and an expansion lower base is connected with the expansion lower sub sections. The combined reducing cone of the expansion tube disclosed by the utility model is arranged outside the expansion tube, so that the diameter of an expansion tube column is minimized during a process of dropping to an open hole well so as to reduce blocking risks during the dropping process.
Description
Technical field
The utility model is relevant for a kind of expansion pipe tool, especially relevant for a kind of expansion tube combination reducing expansion cone for petroleum industry.
Background technology
Along with the middle and later periods of oil exploitation to the oil field, the damage problem often appears in oil well in process of production, these problems are just having a strong impact on normal oil exploitation work, therefore, the novel effective workover process technology of research and extension is extremely urgent, and the proposition of bulged tube technology has play a part certain to the solution of these a series of difficult problems.Present expansion tube is successful Application on the ocean, has saved a large amount of raw material.Utilize the bulged tube technology completion, can increase substantially oil well output, reduce the drilling completion cost.In addition, bulged tube technology also can be applicable to the operation process such as oil recovery, well workover.
The expansion process of expansion tube is the process of body flow harden, and its expansion fashion has mechanical type and fluid pressure type etc.At present, the conventional expansion pipe tool of domestic use, its expansion cone is built-in, be also, expansion cone is placed in the expansion tube body before expansion tube expands, this just makes in expansion tube the wealthy footpath emission cavity that must existence can hold expansion cone, and the existence of wealthy footpath emission cavity makes the expansion tube risk that easily is hampered in being lowered to process, have some setbacks or failed situation generation and cause being lowered to; In addition, expansion tube body thickness differs, and there is weak link in its tube wall, easily causes the expansion tube bulk strength not high; Have, the expansion cone of present domestic use mostly is greatly monolithic construction again, and it can't realize that reducing expands, and then can't realize single diameter expansion, can't reach expansion tube shutoff bore hole stratum and the purpose of not losing borehole size.
Therefore, be necessary to provide a kind of new expansion cone, overcome defects.
The utility model content
The purpose of this utility model is to provide a kind of expansion tube combination reducing expansion cone, and it is placed in outside expansion tube, so that expansion tube tubing string diameter in being lowered to the process of open hole well minimizes, reduces to be lowered to the risk that is hampered.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of expansion tube combination reducing expansion cone, and described expansion tube combination reducing expansion cone comprises:
The expansion seat of honour, it is connected to the lower end of expansion tube;
the expansion distinguish, it has in a plurality of expansions distinguish under distinguish and a plurality of expansion, in described expansion, an end of distinguish is connected with the described expansion seat of honour, in described a plurality of expansion under distinguish and described a plurality of expansion distinguish along the circumferential direction be crisscross arranged, but and relative sliding be combined into an expansion cone, be provided with sliding connection structure between distinguish under distinguish in described expansion and described expansion, described sliding connection structure is the slide block that is opened in the chute of distinguish one side in described expansion and is convexly equipped with distinguish one side under adjacent described expansion, described slide block is slidably disposed in described chute, perhaps described sliding connection structure is the slide block that is opened in the chute of distinguish one side under described expansion and is convexly equipped with distinguish one side in adjacent described expansion, and described slide block is slidably disposed in described chute,
Expand lower, it is connected with distinguish under described expansion.
In preferred embodiment, described chute is dovetail groove, the dovetail projection of described slide block for matching with described dovetail groove.
In preferred embodiment, in described expansion, distinguish has link and the combination end that is connected with described link, described link has clamping part and connecting portion, the described expansion seat of honour is provided with container cavity, the end that the described expansion seat of honour is connected with distinguish in described expansion is provided with the seat of honour annular groove that a plurality of and described container cavity is connected, described connecting portion is arranged in the annular groove of the described seat of honour, and described clamping part is arranged in described container cavity.
In preferred embodiment, under described expansion, distinguish has link and the combination end that is connected with the link of distinguish under described expansion, under described expansion, the link of distinguish has clamping part and connecting portion, lower of described expansion is provided with container cavity, lower end that is connected with distinguish under described expansion of described expansion is provided with the lower seat ring groove that the container cavity of lower of a plurality of and described expansion is connected, under described expansion, the connecting portion of distinguish is arranged in described lower seat ring groove, and under described expansion, the clamping part of distinguish is arranged in the container cavity of lower of described expansion.
In preferred embodiment, in described expansion, distinguish is three, and under described expansion, distinguish is three, in described three expansions under distinguish and described three expansions distinguish along the circumferential direction be crisscross arranged.
Characteristics and the advantage of expansion tube of the present utility model combination reducing expansion cone are: this expansion tube combination reducing expansion cone is connected to outside expansion tube, makes tubing string be lowered to that in the process of open hole well, diameter minimizes, and reduces to be lowered to the risk that is hampered.This expansion tube combination reducing expansion cone can realize that reducing expands, and the expansion rate of expansion tube can be maximized, and shutoff open hole well problem stratigraphic interval after expansion tube expands can realize that borehole size does not lose; In addition, the expansion rate of this expansion tube combination reducing expansion cone in expansion process is variable, can pass through the tight point by reducing after expansion is hampered.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of expansion tube of the present utility model combination reducing expansion cone when not making up.
Fig. 2 is the structural representation after expansion tube combination reducing expansion cone of the present utility model combination.
Fig. 3 is the structural representation at the expansion seat of honour of expansion tube of the present utility model combination reducing expansion cone.
Fig. 4 is the structural representation of lower of the expansion of expansion tube of the present utility model combination reducing expansion cone.
Fig. 5 is the structural representation of distinguish in the expansion of expansion tube of the present utility model combination reducing expansion cone.
Fig. 6 is the structural representation of distinguish under the expansion of expansion tube of the present utility model combination reducing expansion cone.
Fig. 7 is the sectional drawing of expansion tube combination reducing expansion cone of the present utility model.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, 2, the utility model provides a kind of expansion tube combination reducing expansion cone, and it comprises the expansion seat of honour 1, expansion distinguish 2 and expands lower 3.wherein: the expansion seat of honour 1 is connected to the lower end of expansion tube 4, expansion distinguish 2 has in a plurality of expansions distinguish 22 under distinguish 21 and a plurality of expansion, in described expansion, an end of distinguish 21 is connected with the described expansion seat of honour 1, in described a plurality of expansion under distinguish 21 and described a plurality of expansions distinguish 22 along the circumferential direction be crisscross arranged, but and relative sliding be combined into an expansion cone, be provided with sliding connection structure 23 between distinguish 22 under distinguish 21 in described expansion and described expansion, described sliding connection structure 23 is the chute 211 that is opened in distinguish 21 1 sides in described expansion and the slide block 221 that is convexly equipped with distinguish 22 1 sides under adjacent described expansion, described slide block 221 is slidably disposed in described chute 211, perhaps described sliding connection structure 23 is the chute 222 that is opened in distinguish 22 1 sides under described expansion and the slide block 212 that is convexly equipped with distinguish 21 1 sides in adjacent described expansion, and described slide block 212 is slidably disposed in described chute 222, expand and be connected with distinguish 22 under described expansion for lower 3.
specifically, as shown in Figure 3, the expansion seat of honour 1 is oblate cylinder-type substantially, it is located in the lower end of expansion tube 4, in the utility model, the expansion seat of honour 1 is provided with container cavity 11, the expansion seat of honour 1 is provided with a plurality of seat of honour annular grooves 13 that are connected with container cavity 11 with the end 12 that the upper distinguish 21 that expands is connected, in the present embodiment, seat of honour annular groove 13 is three, three seat of honour annular grooves 13 along the circumferential direction evenly arrange, be also, be in twos 120 degree angle settings between seat of honour annular groove 13, 1 middle part is connected at the expansion seat of honour for three seat of honour annular grooves 13, and common and container cavity 11 formation connected states.
as shown in Figure 4, the structure of lower 3 of expanding is identical with the structure at the expansion seat of honour 1, it is oblate cylinder-type substantially, in the utility model, expand and be provided with container cavity 31 for lower 3, lower 3 end 32 that is connected with the lower distinguish 22 that expands that expand is provided with a plurality of lower seat ring grooves 33 that are connected with container cavity 31, in the present embodiment, lower seat ring groove 33 is three, three lower seat ring grooves 33 along the circumferential direction evenly arrange, be also, descend in twos and be 120 degree angle settings between seat ring groove 33, the middle part of three lower seat ring grooves 33 seat 3 under expanding is connected, and common and container cavity 31 formation connected states.
See also shown in Fig. 5,6, expansion distinguish 2 is arranged on the expansion seat of honour 1 and expands between lower 3, in the expansion of expansion distinguish 2, distinguish 21 has link 213 and the combination end 214 that is connected with link 213, link 213 has clamping part 215 and the connecting portion 216 that is connected, connecting portion 216 is arranged in the seat of honour annular groove 13 at the expansion seat of honour 1, clamping part 215 is arranged in the container cavity 11 at the expansion seat of honour 1, thereby the upper distinguish 21 that expands is connected with the expansion seat of honour 1 by its link 213; Under the expansion of expansion distinguish 2, distinguish 22 has link 223 and the combination end 224 that is connected with link 223, link 223 has clamping part 225 and the connecting portion 226 that is connected, the connecting portion 226 of lower distinguish 22 of expanding is arranged in the lower seat ring groove 33 of lower 3 of expanding, the clamping part 225 of lower distinguish 22 of expanding is arranged in the container cavity 31 of lower 3 of expanding, thereby the lower distinguish 22 that expands passes through its link 223 and is connected with lower 3 of expansion.
in expansion, the combination end 214 of distinguish 21 is substantially triangular in shape with the combination end 224 of the lower distinguish 22 that expands, combination end 214, combination end 224 and link 213, the width of the end that link 223 is connected is greater than combination end 214, the width of combination end 224 other ends, and combination end 214, the external surface of combination end 224 is the cambered surface design, like this when distinguish 22 under distinguish in a plurality of expansions 21 and a plurality of expansions along circumferentially staggered and when being oppositely arranged, in expansion, at first the combination end 214 of distinguish 21 contacts with the end that width is less separately with the combination end 224 of the lower distinguish 22 that expands, at this moment, in expansion distinguish 21 with expand lower distinguish 22 in conjunction with the time outer circumference diameter less, expansion tube combination reducing expansion cone of the present utility model is in unswollen state, when it transfers the down-hole with tubing string, the diameter of unexpanded expansion tube combination reducing expansion cone is less than the diameter of expansion tube 4, effectively reduce tubing string and be lowered to the risk that is hampered, when be lowered to put in place after, in expansion, distinguish 21 relatively moves with the lower distinguish 22 that expands, the combination end 224 of the combination end 214 of distinguish 21 and the lower distinguish 22 that expands Intercalation and radially outward expansion expansion gradually in expansion, until be combined into a complete expansion cone structure, at this moment, the diameter of this expansion cone structure is greater than the diameter of expansion tube 4, upwards promotes this expansion cone structure and can realize expansion operation to expansion tube 4.
In a plurality of expansions under distinguish 21 and a plurality of expansions distinguish 22 along the circumferential direction be crisscross arranged, in the utility model, in expansion, distinguish 21 is three, the lower distinguish 22 that expands is three, in three expansions under distinguish 21 and three expansions distinguish 22 along the circumferential direction be crisscross arranged, but and relative sliding be combined into an expansion cone.
On the combination end 214 that distinguish 21 and expanding between lower distinguish 22 by the combined slip of sliding connection structure 23 in expansion, this sliding connection structure 23 are arranged on the upper distinguish 21 that expands and the combination end 224 of the lower distinguish 22 that expands.Please coordinate and consult Fig. 7, in expansion, a side of distinguish 21 offers chute 211, its opposite side convexes with slide block 212, under expanding, a side of distinguish 22 convexes with slide block 221, its opposite side offers chute 222, when the upper distinguish 21 that expands circumferentially is crisscross arranged with the lower distinguish 22 that expands, in adjacent expansion distinguish 21 with expand under just be fastened in chute by slide block between distinguish 22 and mutually combine; Certainly, in other embodiment, both sides in the upper distinguish 21 that expands also can only be provided with chute 211 or slide block 212, and on the both sides of distinguish 22 correspondence expands under expanding, chute 211 or the slide block 212 of distinguish 21 both sides can only be provided with slide block 221 or chute 222, be not restricted at this, as long as can make the upper distinguish 21 that expands for example be fastened on sliding connection structure 23 in chute by slide block with the formation between lower distinguish 22 of expanding.
Further, described chute 211, chute 222 are dovetail groove, described slide block 212, the dovetail projection of slide block 221 for matching with described dovetail groove.Can make like this expand upper distinguish 21 with expand between lower distinguish 22 be slidably connected more firm, reliably.
The operation that the utility model carries out operation is as follows: at first, the upper distinguish 21 that will expand, the lower distinguish 22 that expands be arranged on respectively the expansion seat of honour 1, expand on lower 3, completes the assembling of expansion tube of the present utility model being made up the reducing expansion cone; Afterwards, the expansion seat of honour 1 that expansion tube is made up the reducing expansion cone is connected to the lower end of expansion tube 4, assembling expansion tube capping tools assembly, assemble complete after, in the tubing string lower going-into-well, after tubing string puts in place, high pressure is beaten on ground, and to promote hydraulic cylinder up by suppressing tubing string for hydraulic coupling, and it is up that the up certain distance of hydraulic cylinder promotes lower of the expansion 3 of expansion tube combination reducing expansion cone of the present utility model, and then the lower distinguish 22 that expands is moved up, to be combined into an expansion cone with the upper distinguish 21 that expands; At last, along with hydraulic cylinder constantly upwards contact expand lower 3, it is interior axially to top offset at expansion tube 4 that this expansion tube makes up reducing expansion cone, with expansion expansion tube 4 tube walls.
Expansion tube of the present utility model combination reducing expansion cone is connected to outside expansion tube 4, and it can make tubing string be lowered to that in the process of open hole well, diameter minimizes, and reduces to be lowered to the risk that is hampered.This expansion tube combination reducing expansion cone can realize that reducing expands, and the expansion rate of expansion tube 4 can be maximized, and shutoff open hole well problem stratigraphic interval after expansion tube 4 expands can realize that borehole size does not lose; In addition, this expansion tube combination reducing expansion cone is in the process that expands, can be according to the expand amount of force of lower 3 of hydraulic cylinder contact, adjust at any time the degrees of expansion of the expansion cone after the upper distinguish 21 of expansion makes up with the lower distinguish 22 that expands, the expansion rate of this expansion tube combination reducing expansion cone is variable, and the be hampered reducing degree of rear capable of regulating expansion cone of expanding is passed through the tight point.
The above is only several embodiment of the present utility model, and those skilled in the art can carry out various changes or modification and not break away from spirit and scope of the present utility model the utility model embodiment according to the disclosed content of application documents.
Claims (5)
1. an expansion tube combination reducing expansion cone, is characterized in that, described expansion tube combination reducing expansion cone comprises:
The expansion seat of honour, it is connected to the lower end of expansion tube;
the expansion distinguish, it has in a plurality of expansions distinguish under distinguish and a plurality of expansion, in described expansion, an end of distinguish is connected with the described expansion seat of honour, in described a plurality of expansion under distinguish and described a plurality of expansion distinguish along the circumferential direction be crisscross arranged, but and relative sliding be combined into an expansion cone, be provided with sliding connection structure between distinguish under distinguish in described expansion and described expansion, described sliding connection structure is the slide block that is opened in the chute of distinguish one side in described expansion and is convexly equipped with distinguish one side under adjacent described expansion, described slide block is slidably disposed in described chute, perhaps described sliding connection structure is the slide block that is opened in the chute of distinguish one side under described expansion and is convexly equipped with distinguish one side in adjacent described expansion, and described slide block is slidably disposed in described chute,
Expand lower, it is connected with distinguish under described expansion.
2. expansion tube combination reducing expansion cone as claimed in claim 1, is characterized in that, described chute is dovetail groove, the dovetail projection of described slide block for matching with described dovetail groove.
3. expansion tube as claimed in claim 1 makes up the reducing expansion cone, it is characterized in that, in described expansion, distinguish has link and the combination end that is connected with described link, described link has clamping part and connecting portion, the described expansion seat of honour is provided with container cavity, the end that the described expansion seat of honour is connected with distinguish in described expansion is provided with the seat of honour annular groove that a plurality of and described container cavity is connected, and described connecting portion is arranged in the annular groove of the described seat of honour, and described clamping part is arranged in described container cavity.
4. expansion tube as claimed in claim 3 makes up the reducing expansion cone, it is characterized in that, under described expansion, distinguish has link and the combination end that is connected with the link of distinguish under described expansion, under described expansion, the link of distinguish has clamping part and connecting portion, lower of described expansion is provided with container cavity, lower end that is connected with distinguish under described expansion of described expansion is provided with the lower seat ring groove that the container cavity of lower of a plurality of and described expansion is connected, under described expansion, the connecting portion of distinguish is arranged in described lower seat ring groove, under described expansion, the clamping part of distinguish is arranged in the container cavity of lower of described expansion.
5. expansion tube as claimed in claim 1 combination reducing expansion cone, is characterized in that, in described expansion, distinguish is three, and under described expansion, distinguish is three, in described three expansions under distinguish and described three expansions distinguish along the circumferential direction be crisscross arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592502 CN202970573U (en) | 2012-11-12 | 2012-11-12 | Combined reducing expansion cone of expansion tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592502 CN202970573U (en) | 2012-11-12 | 2012-11-12 | Combined reducing expansion cone of expansion tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970573U true CN202970573U (en) | 2013-06-05 |
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ID=48511660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220592502 Expired - Fee Related CN202970573U (en) | 2012-11-12 | 2012-11-12 | Combined reducing expansion cone of expansion tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273439A (en) * | 2015-05-12 | 2017-01-04 | 中国石油化工股份有限公司 | Elastic centralizer shaped device |
| CN112855063A (en) * | 2021-03-03 | 2021-05-28 | 吉林中科博能科技有限公司 | Soluble ball seat |
-
2012
- 2012-11-12 CN CN 201220592502 patent/CN202970573U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273439A (en) * | 2015-05-12 | 2017-01-04 | 中国石油化工股份有限公司 | Elastic centralizer shaped device |
| CN112855063A (en) * | 2021-03-03 | 2021-05-28 | 吉林中科博能科技有限公司 | Soluble ball seat |
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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: 20130605 Termination date: 20211112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |