CN108005588A - A kind of rotatable mechanical casing collar locator (CCL) - Google Patents
A kind of rotatable mechanical casing collar locator (CCL) Download PDFInfo
- Publication number
- CN108005588A CN108005588A CN201711061136.3A CN201711061136A CN108005588A CN 108005588 A CN108005588 A CN 108005588A CN 201711061136 A CN201711061136 A CN 201711061136A CN 108005588 A CN108005588 A CN 108005588A
- Authority
- CN
- China
- Prior art keywords
- pressing sleeve
- ccl
- groove body
- top connection
- casing collar
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses a kind of rotatable mechanical casing collar locator (CCL), the groove body periphery uniform design of casing collar locator (CCL) has 5 grooves, the groove is used for installing contact block and spring leaf, the groove body both ends are designed with the upper pressing sleeve of threaded connection and lower pressing sleeve, the upper pressing sleeve and lower pressing sleeve block contact block both ends respectively, mounted groove body, contact block, spring leaf and upper and lower pressing sleeve are on the outer wall of top connection, top connection and lower contact are connected through a screw thread, lower contact is machined with junction button on locator, is connected with coiled tubing.The configuration of the present invention is simple, the groove body of locator can 360 degree of rotations in pit shaft, solves the problems, such as that conventional mechanical locator easily locks, is that underground work is smoothed out providing guarantee.
Description
Technical field
The present invention relates to downhole tool technical field, especially a kind of rotatable mechanical casing collar locator (CCL), accurately
Position down-hole oil tube and the coiled tubing position in casing.
Background technology
Mechanical collar locator is a kind of oil pipe and the coiled tubing depthing tool more generally used at present, according to
Suspending weight change can interpolate that coiled tubing is played in the exact position of underground, the operation that is accurately positioned for oil pipe and coiled tubing
Important function.But now widely used collar locator cannot rotate in pit shaft, locked phenomenon easily occurs, can not
Meet construction requirement.
The content of the invention
It is an object of the invention to provide a kind of rotatable mechanical collar locator, i.e. the groove body of locator can be in pit shaft
Interior 360 degree of rotations, can be smoothed out providing guarantee with orientation for underground work.
To achieve the above object, the present invention takes following technical scheme：A kind of rotatable mechanical casing collar locator (CCL),
Including top connection and lower contact, top connection is connected with lower contact by spiral shell button, and upper and lower connector upper and lower ends are machined with junction button,
Due to being connected with oil pipe and coiled tubing, the outer wall of top connection carries step, and inner wall is sleeved on top connection for cylindric groove body
On outer wall, and it is spacing by step and lower contact, and groove body periphery uniform design has multiple axial grooves, and spring leaf is installed in groove
With the contact block being pressed on spring leaf, groove body is provided at both ends with the upper pressing sleeve being connected through a screw thread and lower pressing sleeve, and upper pressing sleeve is with
Pressing sleeve blocks contact block both ends respectively.
The contact block outer surface is provided with the protrusion being arc-shaped, and the ramp chamfering close to upper pressing sleeve one end is larger,
Raised oblique surface chamfer close to lower pressing sleeve one end is smaller.
The groove is 5.
Sealed between the top connection and lower contact by sealing ring.
The beneficial effects of the invention are as follows：It is simple in structure, the groove body of locator can 360 degree of rotations in pit shaft, avoid oil
Pipe and coiled tubing lock during the well entry process, are adapted to complicated severe underground construction environment.
Brief description of the drawings
Fig. 1 is the structure diagram of the rotatable mechanical casing collar locator (CCL) of the present invention.
Fig. 2 is the structure chart of groove body.
Fig. 3 is the diagrammatic cross-section of groove body.
Fig. 4 is the structure diagram of contact chip.
Embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs 1-4, rotatable mechanical casing collar locator (CCL) of the invention, including top connection 1 and lower contact 9,
Top connection is connected with lower contact by spiral shell button, and upper and lower connector upper and lower ends are machined with junction button, due to oil pipe and coiled tubing
It is connected, it is characterised in that the outer wall of top connection 1 carries step, and inner wall is sleeved on the outer wall of top connection 1 for cylindric groove body 5,
And it is spacing by step and lower contact 9, the peripheral uniform design of groove body 5 has multiple axial grooves 10, and spring leaf 4 is installed in groove 10
With the contact block 3 being pressed on spring leaf, groove body is provided at both ends with the upper pressing sleeve 2 being connected through a screw thread and lower pressing sleeve 6, upper pressing sleeve 2
3 both ends of contact block are blocked respectively with lower pressing sleeve 6.
3 outer surface of contact block is provided with the protrusion being arc-shaped, close to upper 3 one end of pressing sleeve ramp chamfering compared with
Greatly, the raised oblique surface chamfer close to lower pressing sleeve one end is smaller.
The groove 10 is 5.
Sealed between the top connection and lower contact 9 by sealing ring 7,8.
During installation, groove body 5 is connected by screw thread with upper pressing sleeve 2, and installing 4 in the groove of each groove body 5 is superimposed
Spring leaf 4, contact block 3 is pressed on spring leaf 4, and its one end is inserted into upper pressing sleeve, lower pressing sleeve 6 passes through spiral shell with groove body 5
Line connects, and spring leaf 4 and contact block 3 are fixed in groove body groove.Above-mentioned mounted groove body 5 is sleeved on the outer of top connection 1
Wall, then installs sealing ring 7 and sealing ring 8, is connected through a screw thread lower contact 9 in the seal groove in top connection.
Rotatable mechanical casing collar locator (CCL) compresses bullet with oil pipe and coiled tubing tripping in casing during tripping in
Reed 4 is in compact state.In order to enable collar locator does not produce larger resistance during tripping between casing coupling
Power, downward, the larger inclined-plane of chamfering is upward on chamfering less inclined-plane on contact block 3.School depth operation is carried out in upper lifting pipe post
When, when locator contacts block 3 is above carried to casing coupling gap, under the action of compression spring leaf 4, the outside diameter of contact block 3
It can expand, protrusion is pushed at gap on contact block 3, continues slowly above to carry oil pipe and coiled tubing at this time, convex on contact block 3
Rising can gradually taper up under the action of upper lifting power, so as to cause the display dial suspending weight increase of coiled tubing ground, work as value added
When reaching 1.5 tons or so, in the raised casing that will be more than sleeve pipe box cupling of spring leaf 4, suspending weight recovers to normal at this time
The suspending weight above carried, casing coupling data during further according to completion, being capable of reality of the accurate judgement casing collar locator (CCL) in well
Position.
In conclusion present disclosure is not limited in the above embodiments, the knowledgeable people in same area can
Can propose other embodiments easily within the technological guidance's thought of the present invention, but this embodiment is included in this hair
Within the scope of bright.
Claims (4)
1. a kind of rotatable mechanical casing collar locator (CCL), it is characterised in that including top connection (1) and lower contact (9), above connect
Head connected with lower contact by spiral shell button, upper and lower connector upper and lower ends are machined with junction button, due to oil pipe and coiled tubing phase
Even, it is characterised in that the outer wall of top connection (1) carries step, and inner wall is sleeved on the outer of top connection (1) for cylindric groove body (5)
On wall, and it is spacing by step and lower contact (9), and groove body (5) periphery uniform design has multiple axial grooves (10), groove (10)
Middle installation spring leaf (4) and the contact block (3) being pressed on spring leaf, groove body are provided at both ends with the upper pressing sleeve being connected through a screw thread
(2) and lower pressing sleeve (6), upper pressing sleeve (2) and lower pressing sleeve (6) block contact block (3) both ends respectively.
2. rotatable mechanical casing collar locator (CCL) according to claim 1, it is characterised in that the contact block (3) is outside
Surface is provided with the protrusion being arc-shaped, and the ramp chamfering close to upper pressing sleeve (3) one end is larger, close to the convex of lower pressing sleeve one end
The oblique surface chamfer risen is smaller.
3. rotatable mechanical casing collar locator (CCL) according to claim 1, it is characterised in that the groove (10) is 5
It is a.
4. rotatable mechanical casing collar locator (CCL) according to claim 1, it is characterised in that the top connection connects with
Sealed between head (9) by sealing ring (7,8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061136.3A CN108005588A (en) | 2017-11-02 | 2017-11-02 | A kind of rotatable mechanical casing collar locator (CCL) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061136.3A CN108005588A (en) | 2017-11-02 | 2017-11-02 | A kind of rotatable mechanical casing collar locator (CCL) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005588A true CN108005588A (en) | 2018-05-08 |
Family
ID=62052191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711061136.3A Pending CN108005588A (en) | 2017-11-02 | 2017-11-02 | A kind of rotatable mechanical casing collar locator (CCL) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005588A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952664A (en) * | 2018-08-22 | 2018-12-07 | 中国石油集团渤海钻探工程有限公司 | A kind of oil/gas well straight well orientation water-jet multistage fracturing method |
| CN114198094A (en) * | 2021-12-27 | 2022-03-18 | 河北环鼎石油设备有限责任公司 | Time-depth data correction method, system and device for storage well cementation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2550503Y (en) * | 2002-07-17 | 2003-05-14 | 窦锡陆 | Mechanical connection hoop |
| KR200375579Y1 (en) * | 2004-11-12 | 2005-03-11 | 이정호 | Coupling |
| CN103850676A (en) * | 2012-11-30 | 2014-06-11 | 中国石油集团川庆钻探工程有限公司 | Novel casing coupling positioner for coiled tubing |
| CN104405319A (en) * | 2014-12-09 | 2015-03-11 | 中国石油天然气集团公司 | Coiled tube throttling suspension tubular column location anchor and location anchoring method thereof |
| CN204960925U (en) * | 2015-09-23 | 2016-01-13 | 中国石油天然气集团公司 | But coiled tubing is with rotary casing collar locator |
| CN106285643A (en) * | 2015-06-01 | 2017-01-04 | 中国石油天然气股份有限公司 | Casing coupling positioner and casing coupling positioning method |
-
2017
- 2017-11-02 CN CN201711061136.3A patent/CN108005588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2550503Y (en) * | 2002-07-17 | 2003-05-14 | 窦锡陆 | Mechanical connection hoop |
| KR200375579Y1 (en) * | 2004-11-12 | 2005-03-11 | 이정호 | Coupling |
| CN103850676A (en) * | 2012-11-30 | 2014-06-11 | 中国石油集团川庆钻探工程有限公司 | Novel casing coupling positioner for coiled tubing |
| CN104405319A (en) * | 2014-12-09 | 2015-03-11 | 中国石油天然气集团公司 | Coiled tube throttling suspension tubular column location anchor and location anchoring method thereof |
| CN106285643A (en) * | 2015-06-01 | 2017-01-04 | 中国石油天然气股份有限公司 | Casing coupling positioner and casing coupling positioning method |
| CN204960925U (en) * | 2015-09-23 | 2016-01-13 | 中国石油天然气集团公司 | But coiled tubing is with rotary casing collar locator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952664A (en) * | 2018-08-22 | 2018-12-07 | 中国石油集团渤海钻探工程有限公司 | A kind of oil/gas well straight well orientation water-jet multistage fracturing method |
| CN114198094A (en) * | 2021-12-27 | 2022-03-18 | 河北环鼎石油设备有限责任公司 | Time-depth data correction method, system and device for storage well cementation |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180508 |