CN2837509Y - Horizontal well logging cable protector - Google Patents
Horizontal well logging cable protector Download PDFInfo
- Publication number
- CN2837509Y CN2837509Y CNU200520127578XU CN200520127578U CN2837509Y CN 2837509 Y CN2837509 Y CN 2837509Y CN U200520127578X U CNU200520127578X U CN U200520127578XU CN 200520127578 U CN200520127578 U CN 200520127578U CN 2837509 Y CN2837509 Y CN 2837509Y
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- cable
- cylindrical shell
- bearing
- pulley
- logging
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Abstract
In a kind of oil well logging process, at the device of wellhead protecting logging cable.Be made up of cylindrical shell, pulley and set bolt etc., it is characterized in that: cylindrical shell is cylindric, and there is set bolt the cylindrical shell lower end.The cylindrical shell upper end has the location gap, and the width of location gap is between the 10-60 millimeter.Be fixed with the support of bearing in gap both sides, location, axle and pulley are arranged on the support of bearing.Be fixed with 2 body resistance-strengthening tablets on the support of bearing.Cable is gone into the well in the process, and cable becomes the rolling friction of cable and pulley by original sliding friction with sleeve pipe, has reduced the wearing and tearing of cable, and cable to locate gap enough low, the elimination elevator smashes the possibility of cable.The safety of safeguard level well or high-angle borehole logging construction reduces logging cost effectively, improves the well logging success rate.
Description
Technical field:
The utility model relates to a kind of well head cable protecting device, in particularly a kind of horizontal well or the big gradient well logging process, is arranged on a kind of device of wellhead protecting logging cable.
Background technology:
At present, in horizontal well or big gradient well logging process, generally adopt drilling tool that instrument is sent into and go into the well, dock logging cable with wet-make connection, drilling tool followed by cable and instrument is transported to the down-hole, just can finish the horizontal wellbore logging task.Lead outer wrapping insulation materials, as easy as rolling off a log being damaged.In delivered downhole cable construction process, well head does not protect the logging cable device.Cable directly contacts with sleeve pipe at well head, and the cable wearing and tearing are severe.In addition, when transferring drilling tool, the elevator that hangs drilling tool is easy to the cable of damaging, and causes cable to disconnect or cable core insulation reduction, makes the well logging success rate reduce; Prolong the well logging time; Increase logging cost.
Summary of the invention:
The purpose of this utility model provides a kind of horizontal wellbore logging cable protecting device, and the protection cable does not rub with sleeve pipe in the process of going into the well, and the protection cable is not injured by elevator, finishes well logging work smoothly.Overcoming well head does not have the deficiency of protective cable device.
The technical scheme that its technical problem that solves the utility model adopts is: the horizontal wellbore logging cable protecting device is made up of cylindrical shell, pulley and set bolt etc., and cylindrical shell is cylindric.There is set bolt the cylindrical shell lower end, cylindrical shell can be fixed on the well head top.The cylindrical shell upper end has the location gap, and the width of location gap is between the 10-60 millimeter.Be fixed with the support of bearing in gap both sides, location, axle and pulley are arranged on the support of bearing.Be fixed with 2 body resistance-strengthening tablets on the support of bearing, cable can be passed through in the middle of two body resistance-strengthening tablets, and walk around pulley and enter in the pit shaft.When cable was gone into well, cable and pulley formed rolling friction, have reduced the wearing and tearing of cable.
In order to make cylindrical shell be fixed on the well head upper end, cylindrical shell lower end inwall is trapezoidal, and the well head upper end can be against trapezoidal root.
In order to reduce processing parts, described pulley can adopt bearing.
The location gap that cylindrical shell top has a current supply cable to pass through is equipped with the support of bearing, axle and pulley, a pressure bearing in gap both sides, location, pressure bearing is fixed on gap middle part, cable location by the support of bearing,, cable enters the location gap through body resistance-strengthening tablets, and walks around pulley.Pulley rolling when cable is descending, make cable become the rolling friction of cable and pulley by original sliding friction with the well head sleeve pipe, the wearing and tearing of cable have been reduced, and cable location gap is enough low, guarantee cable all the time in the bottom of sleeve pipe and elevator contact surface, the elimination elevator smashes the possibility of cable.
The beneficial effects of the utility model are, this instrument can not only effectively reduce the cable wearing and tearing, can also prevent that cable from being pounded disconnected by elevator, the safety of safeguard level well construction, improve logging efficiency, reduced horizontal well or high-angle borehole logging cost, have remarkable economic efficiency.Meet the needs of cable under the well logging and produced handy and practical effect.It is a new and innovative, progressive, practical new design.
Description of drawings:
Fig. 1 is the cross-sectional view of the utility model cable protecting device.
Fig. 2 is the front view of this device.
Among the figure: the 1-cylindrical shell, the 2-set bolt, 3-locatees gap, 4-pulley, the 5-support of bearing, 6-axle, 7-body resistance-strengthening tablets, 8-cable.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
Embodiment 1: consult accompanying drawing 1.To be applicable to that external diameter is that 193.7 millimeters well head is that example describes.The cylindrical shell of this device (1) internal diameter is 180 millimeters, and external diameter is 220 millimeters, and length is 360 millimeters.The trapezoidal internal diameter of cylindrical shell (1) lower end inwall is 195 millimeters.There are 4 set bolts (2) cylindrical shell (1) lower end, can cylindrical shell (1) be fixed on the well head top by hold-down screw (2).Cylindrical shell (1) upper end has a location gap (3), and the width of location gap (3) is 30 millimeters.(30 both sides have been screwed the support of bearing (5) respectively, and axle (6) and pulley (4) are arranged on the support of bearing (5) at the location gap.80 millimeters of pulley (4) external diameters.Consult accompanying drawing 2.The support of bearing (5) screwing is fixed with 2 body resistance-strengthening tablets (7).Body resistance-strengthening tablets (7) is a copper sheet.Cable (8) can pass through in the middle of two body resistance-strengthening tablets (7), and walks around pulley (4) and enter in the pit shaft.
Embodiment 2: consult accompanying drawing 1.To be applicable to that external diameter is that 224.5 millimeters well head is that example describes.The cylindrical shell of this device (1) internal diameter is 205 millimeters, and external diameter is 245 millimeters, and length is 360 millimeters.The trapezoidal internal diameter of cylindrical shell (1) lower end inwall is 223 millimeters.There are 4 set bolts (2) cylindrical shell (1) lower end, can cylindrical shell (1) be fixed on the well head top by hold-down screw (2).Cylindrical shell (1) upper end has a location gap (3), and the width of location gap (3) is 30 millimeters.Be screwed the support of bearing (5) respectively in gap (3) both sides, location, axle (6) and bearing (4) have been arranged on the support of bearing (5).Be that former pulley adopts bearing (4) to substitute.80 millimeters of bearing (4) external diameters.Consult accompanying drawing 2.2 body resistance-strengthening tablets (7) have been screwed on the support of bearing (5).Body resistance-strengthening tablets (7) is a copper sheet.Cable (8) can pass through in the middle of two body resistance-strengthening tablets (7), and walks around bearing (4) and enter in the pit shaft.
Claims (3)
1, a kind of horizontal wellbore logging cable protecting device; form by cylindrical shell (1), pulley (4) and set bolt (2); it is characterized in that: cylindrical shell (1) is for cylindric; there is set bolt (2) cylindrical shell (1) lower end; cylindrical shell (1) upper end has location gap (3), and the width of location gap (3) is fixed with the support of bearing (5) in gap (3) both sides, location between the 10-60 millimeter; axle (6) and pulley (4) are arranged on the support of bearing (5), be fixed with 2 body resistance-strengthening tablets (7) on the support of bearing (5).
2, a kind of horizontal wellbore logging cable protecting device as claimed in claim 1 is characterized in that: cylindrical shell (1) lower end inwall is trapezoidal, and the well head upper end can be against trapezoidal root.
3, a kind of horizontal wellbore logging cable protecting device as claimed in claim 1 or 2 is characterized in that: described pulley (4) adopts bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520127578XU CN2837509Y (en) | 2005-11-10 | 2005-11-10 | Horizontal well logging cable protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520127578XU CN2837509Y (en) | 2005-11-10 | 2005-11-10 | Horizontal well logging cable protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837509Y true CN2837509Y (en) | 2006-11-15 |
Family
ID=37391992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200520127578XU Expired - Fee Related CN2837509Y (en) | 2005-11-10 | 2005-11-10 | Horizontal well logging cable protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837509Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636557B (en) * | 2006-12-15 | 2013-04-10 | 文西技术公司 | Measurement device in a horizontal well |
| CN104184082A (en) * | 2014-08-28 | 2014-12-03 | 南通友联数码技术开发有限公司 | Well head cable protection device |
| WO2019034865A1 (en) | 2017-08-14 | 2019-02-21 | Petróleo Brasileiro S.A. - Petrobras | Auxiliary device for lowering a tool into a well |
| CN112253032A (en) * | 2020-09-30 | 2021-01-22 | 中国石油天然气股份有限公司 | Wellhead cable protector for oil-submersible cable tripping operation and cable protection method |
-
2005
- 2005-11-10 CN CNU200520127578XU patent/CN2837509Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636557B (en) * | 2006-12-15 | 2013-04-10 | 文西技术公司 | Measurement device in a horizontal well |
| CN104184082A (en) * | 2014-08-28 | 2014-12-03 | 南通友联数码技术开发有限公司 | Well head cable protection device |
| WO2019034865A1 (en) | 2017-08-14 | 2019-02-21 | Petróleo Brasileiro S.A. - Petrobras | Auxiliary device for lowering a tool into a well |
| US11408238B2 (en) | 2017-08-14 | 2022-08-09 | Petróleo Brasileiro S.A.—Petrobras | Auxiliary device for lowering a tool into a well |
| CN112253032A (en) * | 2020-09-30 | 2021-01-22 | 中国石油天然气股份有限公司 | Wellhead cable protector for oil-submersible cable tripping operation and cable protection method |
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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: 20061115 Termination date: 20141110 |
|
| EXPY | Termination of patent right or utility model |