CN103195391B - Sliding sleeve switch closing tool - Google Patents
Sliding sleeve switch closing tool Download PDFInfo
- Publication number
- CN103195391B CN103195391B CN201310140434.7A CN201310140434A CN103195391B CN 103195391 B CN103195391 B CN 103195391B CN 201310140434 A CN201310140434 A CN 201310140434A CN 103195391 B CN103195391 B CN 103195391B
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- Prior art keywords
- elastic claw
- central tube
- shaft shoulder
- face
- annular
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- Push-Button Switches (AREA)
Abstract
This patent relates to a kind of sliding sleeve switch closing tool, comprise central tube, central tube is provided with connecting portion and lower connecting portion, and on central tube, cover has top connection and elastic claw, the lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove; Elastic claw bottom is annular, middle part and top are provided with many axial gap, and elastic claw top is provided with outer annular flanges and the first external annular groove, is provided with the second external annular groove in the middle part of elastic claw, the back side, two side is the conical surface, and elastic claw top has the lower annular end face perpendicular to central tube axis; Elastic claw bottom is connected with the first lower contact; Central tube is provided with the shaft shoulder and the lower shaft shoulder.Advantage is: versatility is good, the scope of application is wide, can meet specification various structures form sliding sleeve of the same race and use, and can avoid sand card phenomenon and field operation risk occur; Increase substantially its reliability in operation, ensure that the action of sliding sleeve switch closing tool puts in place, close in time and sand control treatment effective.
Description
Technical field
The invention belongs to oil field development production technical field, particularly relate to a kind of sliding sleeve switch closing tool.
Background technology
In current known oil field development, along with deep-well, the increasing of Holes of Complicated Wells drilling exploitation, the especially continuous innovation improvement of well-completing process, has higher requirement to the various functions of completion tool and use.Sliding sleeve switch, closing tool are sand control service aids necessary in gravel filling sand prevention operation, mainly play closedown, open sliding sleeve effect.There is following defect in tradition sliding sleeve switch closing tool: one, and traditional sliding sleeve open and close instrument carries out supporting custom-designed for a specific sliding sleeve, its poor universality, narrow application range, cannot meet specification various structures form sliding sleeve of the same race and use.Its two, its complex structural designs, in gravel packing operations, easily sliding sleeve open and close instrument place pile up gravel cause sand card, bring great risk to field operation.Its three, the less reliable of the elastic claw mechanism of traditional sliding sleeve open and close instrument, and useful life is short, cannot ensure that sliding sleeve open and close action of tool puts in place in gravel packing operations, there is the risk that cannot close in sliding sleeve, causes sand control treatment to lose efficacy.
Summary of the invention
This patent provides a kind of sliding sleeve switch closing tool for solving in known technology the technical problem that exists.
This sliding sleeve switch closing tool is in gravel pack completion sand control treatment, and versatility is good, the scope of application is wide, can meet specification various structures form sliding sleeve of the same race and use; Due to this tool construction simplicity of design, the risk of piling up gravel generation sand card phenomenon and field operation in gravel packing operations at sliding sleeve switch closing tool place can be avoided; The elastic claw mechanism of this instrument adopts bottom to be annular, middle part and top are provided with the structure design of many axial gap, not only can increase substantially its reliability in operation, increase the service life, but also can ensure that the action of sliding sleeve switch closing tool puts in place, close in time and sand control treatment effective.
The technical scheme that this patent is taked for the technical problem existed in solution known technology is:
Sliding sleeve switch instrument, comprises central tube, and described central tube is provided with connecting portion and lower connecting portion, it is characterized in that: on central tube, cover has top connection and elastic claw,
The lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove;
The bottom of elastic claw is annular, middle part and top are provided with many axial gap, the top of elastic claw is provided with the outer annular flanges and the first external annular groove that cooperatively interact with the first circular inner ledge and interior annular groove respectively, the second external annular groove is provided with at the middle part of elastic claw, the two side of the second external annular groove is the planar annular perpendicular to central tube axis, the back side of two side is the conical surface, and the top of elastic claw has the lower annular end face perpendicular to central tube axis;
The bottom of elastic claw is also connected with the first lower contact, and the first lower contact has annular end face on, and the first lower contact is also sleeved on central tube;
Described central tube is provided with to prop up the lower shaft shoulder of annular end face in the upper shaft shoulder of subordinate's annular end face on elastic claw and the first lower contact;
Position between the upper shaft shoulder of central tube and the lower shaft shoulder and the region in the middle part of elastic claw inwall define the space holding elastic claw and inwardly subside.
This patent can also adopt following technical scheme:
Preferably, the upper surface of the described upper shaft shoulder and the distance of lower shaft shoulder lower surface are less than the distance of the lower annular end face on elastic claw top and the upper annular end face of lower contact, and described top connection, elastic claw, the first lower contact are all slidably connected on central tube.
Preferably, described upper connecting portion is the box cupling with upper internal thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.
A kind of sliding bush closing tool, comprise central tube, described central tube is provided with connecting portion and lower connecting portion, and on central tube, cover has top connection and elastic claw,
The lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove;
The bottom of elastic claw is annular, middle part and top are provided with many axial gap, the top of elastic claw is provided with the outer annular flanges and the first external annular groove that cooperatively interact with the first circular inner ledge and interior annular groove respectively, the second external annular groove is provided with at the middle part of elastic claw, the upper side wall of the second external annular groove is the planar annular perpendicular to central tube axis, lower wall is the conical surface, and the back side of two side is the conical surface, and the top of elastic claw has the lower annular end face perpendicular to central tube axis;
The bottom of elastic claw is also connected with the first lower contact, and the first lower contact has annular end face on, and the first lower contact is also sleeved on central tube;
Described central tube is provided with to prop up the lower shaft shoulder of annular end face in the upper shaft shoulder of subordinate's annular end face on elastic claw and the first lower contact;
Position between the upper shaft shoulder of central tube and the lower shaft shoulder and the region in the middle part of elastic claw inwall define the space holding elastic claw and inwardly subside.
The present invention can also adopt following technical scheme:
Preferably, the upper surface of the described upper shaft shoulder and the distance of lower shaft shoulder lower surface are less than the distance of the lower annular end face on elastic claw top and the upper annular end face of the first lower contact, and described top connection, elastic claw, the first lower contact are all slidably connected on central tube.
Preferably, described upper connecting portion is the box cupling with upper external screw thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.
Preferably, described lower connecting portion is second lower contact with upper internal thread and lower internal thread, and the upper internal thread of the second lower contact is connected with central tube.
The advantage that the present invention has and good effect are: the present invention adopts technique scheme, namely in gravel pack completion sand control treatment, adopt sliding sleeve switch closing tool, its versatility is good, the scope of application is wide, can meet specification various structures form sliding sleeve of the same race and use; Due to this tool construction simplicity of design, the risk of piling up gravel generation sand card phenomenon and field operation in gravel packing operations at sliding sleeve switch closing tool place can be avoided, easy and simple to handle and safe and reliable; The elastic claw mechanism of this instrument adopts bottom to be annular, middle part and top are provided with the structure design of many axial gap, not only can increase substantially its reliability in operation, increase the service life, but also can ensure that the action of sliding sleeve switch closing tool puts in place, close in time and sand control treatment effective.
Accompanying drawing explanation
Fig. 1 is the half sectional view of this patent embodiment 1, and the left side in figure is defined as the top of instrument;
Fig. 2 is the half sectional view of this patent embodiment 2, and the left side in figure is defined as the top of instrument.
In figure: 1, box cupling; 2, central tube; 3, top connection; 4, elastic claw; 5, holding screw; 6, the first lower contact; 7, the second lower contact.
Detailed description of the invention
For summary of the invention, the Characteristic of this patent can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1:
Refer to Fig. 1, a kind of sliding sleeve switch instrument, comprises central tube 2, and central tube is provided with connecting portion and lower connecting portion, and on central tube, cover has top connection 3 and elastic claw 4,
The lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove;
The bottom of elastic claw is annular, middle part and top are provided with many axial gap, the top of elastic claw is provided with the outer annular flanges and the first external annular groove that cooperatively interact with the first circular inner ledge and interior annular groove respectively, the second external annular groove is provided with at the middle part of elastic claw, the two side of the second external annular groove is the planar annular perpendicular to central tube axis, the back side of two side is the conical surface, and the top of elastic claw has the lower annular end face perpendicular to central tube axis;
The bottom of elastic claw has also been threaded the first lower contact, and after the first lower contact 6 is rotated in place, is fixed by holding screw 5, and the first lower contact has annular end face on, and the first lower contact is also sleeved on central tube;
Central tube is provided with to prop up the lower shaft shoulder of annular end face in the upper shaft shoulder of subordinate's annular end face on elastic claw and the first lower contact;
Position between the upper shaft shoulder of central tube and the lower shaft shoulder and the region in the middle part of elastic claw inwall define the space holding elastic claw and inwardly subside.
The upper surface of the upper shaft shoulder and the distance of lower shaft shoulder lower surface are less than the distance of the lower annular end face on elastic claw top and the upper annular end face of lower contact, and top connection, elastic claw, the first lower contact are all slidably connected on central tube.
Upper connecting portion in the present embodiment is the box cupling 1 with upper internal thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.The external screw thread of pipe bottom centered by lower connecting portion.
The operating principle of the present embodiment is:
In this tool assemble process, first the top of elastic claw is inserted in top connection, because the top of elastic claw and middle part have axial slits, so top inwardly can be shunk and is inserted in top connection, first external annular groove and interior annular groove, the first circular inner ledge and outer annular flanges cooperatively interact, and then the assembly of top connection and elastic claw are enclosed within central tube from top, then install box cupling, and the first lower contact is screwed in elastic claw, fixed by holding screw.
During use, when sliding sleeve switch instrument is by sliding sleeve, because the side-wall outer side of the second external annular groove in the middle part of elastic claw is conical, and there is the space that can compress in the inner wall space in the middle part of elastic claw, so through out-of-date, sliding sleeve slips over from the conical surface of side-wall outer side, and is snapped in the second external annular groove.By moving up and down central tube, the ON/OFF of sliding sleeve just can be realized.
Embodiment 2:
Refer to Fig. 2, a kind of sliding bush closing tool, comprise central tube 1, described central tube is provided with connecting portion and lower connecting portion, and on central tube, cover has top connection 3 and elastic claw 4,
The lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove;
The bottom of elastic claw 4 is annular, middle part and top are provided with many axial gap, the top of elastic claw is provided with the outer annular flanges and the first external annular groove that cooperatively interact with the first circular inner ledge and interior annular groove respectively, the second external annular groove is provided with at the middle part of elastic claw, the upper side wall of the second external annular groove is the planar annular perpendicular to central tube axis, lower wall is the conical surface, and the back side of two side is the conical surface, and the top of elastic claw has the lower annular end face perpendicular to central tube axis;
The bottom of elastic claw is also connected with the first lower contact 6, first lower contact and has annular end face on, and the first lower contact is also sleeved on central tube;
Described central tube is provided with to prop up the lower shaft shoulder of annular end face in the upper shaft shoulder of subordinate's annular end face on elastic claw and the first lower contact;
Position between the upper shaft shoulder of central tube and the lower shaft shoulder and the region in the middle part of elastic claw inwall define the space holding elastic claw and inwardly subside.
Preferably, the upper surface of the described upper shaft shoulder and the distance of lower shaft shoulder lower surface are less than the distance of the lower annular end face on elastic claw top and the upper annular end face of the first lower contact, and described top connection, elastic claw, the first lower contact are all slidably connected on central tube.
Preferably, described upper connecting portion is the box cupling 1 with upper external screw thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.
Preferably, described lower connecting portion is that the upper internal thread of second lower contact 7, second lower contact with upper internal thread and lower internal thread is connected with central tube.
The structure of this sliding bush closing tool is roughly the same with sliding sleeve switch instrument, and difference is only that the upper side wall of the second external annular groove is the planar annular perpendicular to central tube axis, and lower wall is the conical surface, and the back side of two side is also the conical surface.
Upper connecting portion in the present embodiment is the box cupling 1 with upper external screw thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.Lower connecting portion is that the upper internal thread of second lower contact 7, second lower contact with upper internal thread and lower internal thread is connected with central tube.
The operating principle major part of the present embodiment is identical with embodiment 1, only because the lower wall of the second external annular groove is the conical surface, so closing tool only can impose downward power to sliding sleeve, only has closing function.
Although be described the preferred embodiment of this patent by reference to the accompanying drawings above, but this patent is not limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematic, be not restrictive, those of ordinary skill in the art is under the enlightenment of this patent, do not departing under the ambit that this patent aim and claim protect, a lot of form can also be made, such as: can be 1. internal thread or external screw thread according to the screw thread of correlated parts, and thread size size, multi-form box cupling and the second lower contact is equipped with to central tube, or directly utilize the external screw thread on central tube as upper connecting portion and lower connecting portion, 2. other fixed form can be selected the first lower contact and elastic claw to be fixed together, and be not limited to the holding screw adopting radial direction, these all belong within the protection domain of this patent.
Claims (7)
1. a sliding sleeve switch instrument, comprises central tube, and described central tube is provided with connecting portion and lower connecting portion, it is characterized in that: on central tube, cover has top connection and elastic claw,
The lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove;
The bottom of elastic claw is annular, middle part and top are provided with many axial gap, the top of elastic claw is provided with the outer annular flanges and the first external annular groove that cooperatively interact with the first circular inner ledge and interior annular groove respectively, the second external annular groove is provided with at the middle part of elastic claw, the two side of the second external annular groove is the planar annular perpendicular to central tube axis, the back side of two side is the conical surface, and the top of elastic claw has the lower annular end face perpendicular to central tube axis;
The bottom of elastic claw is also connected with the first lower contact, and the first lower contact has annular end face on, and the first lower contact is also sleeved on central tube;
Described central tube is provided with to prop up the lower shaft shoulder of annular end face in the upper shaft shoulder of subordinate's annular end face on elastic claw and the first lower contact;
Position between the upper shaft shoulder of central tube and the lower shaft shoulder and the region in the middle part of elastic claw inwall define the space holding elastic claw and inwardly subside.
2. sliding sleeve switch instrument according to claim 1, it is characterized in that: the upper surface of the described upper shaft shoulder and the distance of lower shaft shoulder lower surface are less than the distance of the lower annular end face on elastic claw top and the upper annular end face of the first lower contact, and described top connection, elastic claw, the first lower contact are all slidably connected on central tube.
3. sliding sleeve switch instrument according to claim 1, is characterized in that: described upper connecting portion is the box cupling with upper internal thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.
4. a sliding bush closing tool, comprises central tube, and described central tube is provided with connecting portion and lower connecting portion, it is characterized in that: on central tube, cover has top connection and elastic claw,
The lower inner wall of top connection is provided with the first circular inner ledge, and the top of the first circular inner ledge is provided with interior annular groove;
The bottom of elastic claw is annular, middle part and top are provided with many axial gap, the top of elastic claw is provided with the outer annular flanges and the first external annular groove that cooperatively interact with the first circular inner ledge and interior annular groove respectively, the second external annular groove is provided with at the middle part of elastic claw, the upper side wall of the second external annular groove is the planar annular perpendicular to central tube axis, lower wall is the conical surface, and the back side of two side is the conical surface, and the top of elastic claw has the lower annular end face perpendicular to central tube axis;
The bottom of elastic claw is also connected with the first lower contact, and the first lower contact has annular end face on, and the first lower contact is also sleeved on central tube;
Described central tube is provided with to prop up the lower shaft shoulder of annular end face in the upper shaft shoulder of subordinate's annular end face on elastic claw and the first lower contact;
Position between the upper shaft shoulder of central tube and the lower shaft shoulder and the region in the middle part of elastic claw inwall define the space holding elastic claw and inwardly subside.
5. sliding bush closing tool according to claim 4, it is characterized in that: the upper surface of the described upper shaft shoulder and the distance of lower shaft shoulder lower surface are less than the distance of the lower annular end face on elastic claw top and the upper annular end face of the first lower contact, and described top connection, elastic claw, the first lower contact are all slidably connected on central tube.
6. sliding bush closing tool according to claim 4, is characterized in that: described upper connecting portion is the box cupling with upper external screw thread and lower internal thread, and the lower internal thread of box cupling is connected with central tube.
7. sliding bush closing tool according to claim 4, is characterized in that: described lower connecting portion is second lower contact with upper internal thread and lower internal thread, and the upper internal thread of the second lower contact is connected with central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140434.7A CN103195391B (en) | 2013-04-22 | 2013-04-22 | Sliding sleeve switch closing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140434.7A CN103195391B (en) | 2013-04-22 | 2013-04-22 | Sliding sleeve switch closing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195391A CN103195391A (en) | 2013-07-10 |
| CN103195391B true CN103195391B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310140434.7A Expired - Fee Related CN103195391B (en) | 2013-04-22 | 2013-04-22 | Sliding sleeve switch closing tool |
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| Country | Link |
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| CN (1) | CN103195391B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632113B (en) * | 2013-11-15 | 2017-08-04 | 中国石油天然气股份有限公司 | Infinite-stage fracturing sand blasting sliding sleeve opening tool and operation method thereof |
| CN106285643B (en) * | 2015-06-01 | 2019-06-11 | 中国石油天然气股份有限公司 | Casing coupling positioner and casing coupling positioning method |
| CN107420067A (en) * | 2017-06-29 | 2017-12-01 | 中国海洋石油总公司 | A kind of anti-return well cementation sliding sleeve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201334895Y (en) * | 2009-01-06 | 2009-10-28 | 四机赛瓦石油钻采设备有限公司 | Communicating sliding sleeve |
| CN102261231A (en) * | 2011-02-23 | 2011-11-30 | 新疆华油油气工程有限公司 | Repeated switch sliding sleeve device |
| CN202140065U (en) * | 2011-07-11 | 2012-02-08 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102839956A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type crushing assembly, device using assembly and using method of device |
| CN202731847U (en) * | 2012-07-04 | 2013-02-13 | 中国海洋石油总公司 | Circulatory produced sliding sleeve |
| CN202810789U (en) * | 2012-08-31 | 2013-03-20 | 中国石油化工股份有限公司 | Underground device for sliding sleeve switch |
| CN203214022U (en) * | 2013-04-22 | 2013-09-25 | 中国海洋石油总公司 | Sliding sleeve opening and closing tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8365821B2 (en) * | 2010-10-29 | 2013-02-05 | Hall David R | System for a downhole string with a downhole valve |
-
2013
- 2013-04-22 CN CN201310140434.7A patent/CN103195391B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201334895Y (en) * | 2009-01-06 | 2009-10-28 | 四机赛瓦石油钻采设备有限公司 | Communicating sliding sleeve |
| CN102261231A (en) * | 2011-02-23 | 2011-11-30 | 新疆华油油气工程有限公司 | Repeated switch sliding sleeve device |
| CN102839956A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type crushing assembly, device using assembly and using method of device |
| CN202140065U (en) * | 2011-07-11 | 2012-02-08 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN202731847U (en) * | 2012-07-04 | 2013-02-13 | 中国海洋石油总公司 | Circulatory produced sliding sleeve |
| CN202810789U (en) * | 2012-08-31 | 2013-03-20 | 中国石油化工股份有限公司 | Underground device for sliding sleeve switch |
| CN203214022U (en) * | 2013-04-22 | 2013-09-25 | 中国海洋石油总公司 | Sliding sleeve opening and closing tool |
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| Publication number | Publication date |
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| CN103195391A (en) | 2013-07-10 |
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Granted publication date: 20151021 |