CN205135453U - Split type casing coupling - Google Patents
Split type casing coupling Download PDFInfo
- Publication number
- CN205135453U CN205135453U CN201521009996.9U CN201521009996U CN205135453U CN 205135453 U CN205135453 U CN 205135453U CN 201521009996 U CN201521009996 U CN 201521009996U CN 205135453 U CN205135453 U CN 205135453U
- Authority
- CN
- China
- Prior art keywords
- hoop
- hoop body
- casing coupling
- split type
- screw thread
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a split type casing coupling, split type casing coupling is personally experienced sth. Part of the body, is bound round the body group outward by the last hoop body, lower hoop, the utility model discloses the middle and upper hoop body is equipped with the boss with the inner cylinder face screw thread end that binds round the body down. The utility model discloses well split type casing coupling go up the hoop body and down the hoop body utilize and go up hoop body conical bore and hoop body circular conical surface quickmelt down, going up the hoop body and the hoop body down, to carry out threaded connection through the outer hoop body fixed. Casing coupling's the external face of cylinder of lower hoop is equipped with the shaft shoulder, can prevent that the outer hoop body excess of stroke from removing, improves the reliability. The utility model discloses can be used to the oil field sheathed tube and connecting, the upper end sleeve pipe need not rotatory alright realization sleeve pipe high -speed joint fastening when going up the sleeve pipe, has work efficiency height, low in labor strength's characteristics, creeps into the operation to the oil field and has higher use value.
Description
Technical field
The utility model relates to a kind of split type casing coupling, belongs to cementing tool field, oil gas field down-hole.
Background technology
Casing coupling is the essential tool realizing well cementation in oilfield drilling process for splicing sleeve.Current casing coupling is contained in cannula carrier end of thread in advance when sleeve pipe dispatches from the factory, when setting of casing, lower end casing clamp is tightly motionless, upper sleeve portion is lifted into after above box cupling, the connection that upper sleeve portion completes sleeve pipe is rotated by sleeve power tongs, realize sleeve pipe by revoling tube to connect, need many people coordinative operation, operation intensity is high, cost is high, efficiency is low.The utility model is by designing a kind of split type casing coupling to realize not relying on sleeve rotating to complete the connection work of sleeve pipe by revoling tube box cupling, this casing coupling can reduce the number of operation simultaneously, reduce operation intensity, improve operating efficiency, reduce operating cost.
Summary of the invention
The purpose of this utility model is to provide a kind of split type casing coupling, completes sleeve pipe connect the problem that the operation intensity brought is high, operating efficiency is low, operating cost is high in order to solution by revoling tube.
The technical scheme that the utility model technical solution problem adopts is: a kind of split type casing coupling, be made up of upper hoop, lower hoop, outer hoop body, upper hoop and lower hoop utilize upper hoop conical bore and lower hoop outer conical surface to realize rapid abutting joint, upper hoop and the outer hoop body of lower hoop are connected and fixed by upper hoop external screw thread, lower hoop external screw thread, outer hoop body internal thread, upper hoop internal thread and lower hoop internal thread are used for splicing sleeve, described upper hoop is also provided with upper hoop positioning boss, and described lower hoop is also provided with the shaft shoulder and lower hoop positioning boss.
The upper hoop external screw thread of described split type casing coupling is full thread, allow outer hoop body upwards the excess of stroke move, realize carrying out after upper hoop is located with lower hoop rapid abutting joint being connected fastening.
The lower hoop of described split type casing coupling is provided with the shaft shoulder in lower hoop external screw thread lower end, box cupling in the process of upper sleeve pipe can be avoided to come off and the downward excess of stroke of outer hoop body moves, reduce outer hoop body internal thread, upper hoop external screw thread and the lower hoop external screw thread axial load of bearing simultaneously.
Upper hoop and the lower hoop of described split type casing coupling are contained in cannula tip in advance, upper sleeve portion non rotating in the process of upper sleeve pipe, complete upper casing operation by rotating outer hoop body.
The beneficial effects of the utility model are: in the process of upper sleeve pipe, upper hoop and lower hoop realize rapid abutting joint by upper hoop conical bore and lower hoop outer conical surface, then connection is carried out by the outer hoop body of rotation fastening, without the need to the sleeve pipe that rotary volume is huge, have the advantages that operation intensity is low, operating efficiency is high, operating cost is low.
Accompanying drawing explanation
Fig. 1 is overall structure sectional view of the present utility model
Fig. 2 is the sectional view of the utility model upper hoop
Fig. 3 is the sectional view of the utility model lower hoop
Fig. 4 is the sectional view of the outer hoop body of the utility model
In accompanying drawing, 1 is upper hoop, and 2 is lower hoop, 3 is outer hoop body, and 101 is upper hoop external screw thread, and 102 is upper hoop positioning boss, 103 is upper hoop conical bore, 104 is upper hoop internal thread, and 201 is lower hoop outer conical surface, and 202 is the shaft shoulder, 203 is lower hoop internal thread, 204 is lower hoop external screw thread, and 205 is lower hoop positioning boss, and 301 is outer hoop body internal thread.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-4, the utility model is described in further detail.
As shown in drawings, this utility model is made up of upper hoop 1, lower hoop 2, outer hoop body 3, upper hoop 1 and lower hoop 2 utilize upper hoop conical bore 103 and lower hoop outer conical surface 201 to realize rapid abutting joint, upper hoop 1 and the outer hoop body 3 of lower hoop 2 are connected and fixed by upper hoop external screw thread 101, lower hoop external screw thread 204, outer hoop body internal thread 301, upper hoop internal thread 104 and lower hoop internal thread 203 are for splicing sleeve, described upper hoop 1 is also provided with upper hoop positioning boss 102, and described lower hoop 2 is also provided with the shaft shoulder 202 and lower hoop positioning boss 205.
Described upper hoop external screw thread of the present utility model 101 is full thread, allow outer hoop body 3 upwards the excess of stroke move, realize carrying out after upper hoop 1 is located with lower hoop 2 rapid abutting joint being connected fastening.
Lower hoop 2 of the present utility model is provided with the shaft shoulder 202 in lower hoop external screw thread 204 lower end, box cupling in the process of upper sleeve pipe can be avoided to come off and outer hoop body 3 downwards the excess of stroke move, reduce the axial load that outer hoop body internal thread 301, upper hoop external screw thread 101 and lower hoop external screw thread 204 bear simultaneously.
Upper hoop 1 of the present utility model and lower hoop 2 are contained in cannula tip in advance, upper sleeve portion non rotating in the process of upper sleeve pipe, complete upper casing operation by rotating outer hoop body 3.
The course of work of described casing coupling is: upper hoop 1 and lower hoop 2 are contained in cannula tip in advance, outer hoop body 3 is loaded on upper hoop 1, and outer hoop body 3 lower edge position is higher than the lower edge position of upper hoop 1, in order to avoid outer hoop body 3 collides with lower hoop 2 and damages during sleeve pipe docking.Sleeve pipe locate by upper hoop conical bore 103 and lower hoop outer conical surface 201 rapid abutting joint, and sleeve pipe completes the outer hoop body 3 of rotation after butt junction location, until outer hoop body 3 lower end contact with the shaft shoulder cannot turn after complete upper sleeve pipe action.
Claims (4)
1. a split type casing coupling, it is characterized in that: by upper hoop (1), lower hoop (2), outer hoop body (3) forms, upper hoop (1) and lower hoop (2) utilize upper hoop conical bore (103) and lower hoop outer conical surface (201) to realize rapid abutting joint, upper hoop (1) and lower hoop (2) with outer hoop body (3) by upper hoop external screw thread (101), lower hoop external screw thread (204), outer hoop body internal thread (301) is connected and fixed, upper hoop internal thread (104) and lower hoop internal thread (203) are for splicing sleeve, described upper hoop (1) is also provided with upper hoop positioning boss (102), described lower hoop (2) is also provided with the shaft shoulder (202) and lower hoop positioning boss (205).
2. the split type casing coupling of one according to claim 1, it is characterized in that: upper hoop external screw thread (101) is full thread, allow outer hoop body (3) upwards the excess of stroke move, realize carrying out after upper hoop (1) is located with lower hoop (2) rapid abutting joint being connected fastening.
3. the split type casing coupling of one according to claim 1, it is characterized in that: lower hoop (2) is provided with the shaft shoulder (202) in lower hoop external screw thread (204) lower end, box cupling in the process of upper sleeve pipe can be avoided to come off and outer hoop body (3) downwards the excess of stroke move, reduce the axial load that outer hoop body internal thread (301), upper hoop external screw thread (101) and lower hoop external screw thread (204) bear simultaneously.
4. the split type casing coupling of one according to claim 1, it is characterized in that: upper hoop (1) and lower hoop (2) are contained in cannula tip in advance, upper sleeve portion non rotating in the process of upper sleeve pipe, has carried out upper casing operation by rotating outer hoop body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009996.9U CN205135453U (en) | 2015-12-03 | 2015-12-03 | Split type casing coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009996.9U CN205135453U (en) | 2015-12-03 | 2015-12-03 | Split type casing coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135453U true CN205135453U (en) | 2016-04-06 |
Family
ID=55621259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009996.9U Expired - Fee Related CN205135453U (en) | 2015-12-03 | 2015-12-03 | Split type casing coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135453U (en) |
-
2015
- 2015-12-03 CN CN201521009996.9U patent/CN205135453U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161203 |