CN201391245Y - Underground logging centralizer - Google Patents
Underground logging centralizer Download PDFInfo
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- CN201391245Y CN201391245Y CN200920106997U CN200920106997U CN201391245Y CN 201391245 Y CN201391245 Y CN 201391245Y CN 200920106997 U CN200920106997 U CN 200920106997U CN 200920106997 U CN200920106997 U CN 200920106997U CN 201391245 Y CN201391245 Y CN 201391245Y
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Abstract
An underground logging centralizer is applied to the technical field of oilfield logging, and is characterized in that the middle portion of a center rod is fixed with spring sleeves symmetrically. A sliding ring and a spring are arranged inside an annular space between the spring sleeves and the center rod, and the ends of the spring sleeves are connected with setting load adjusting rings. Outer walls of two spring sleeves are respectively fixed with the ends of four supporting arms through pin shafts. Other ends of the supporting arms are respectively connected with roller wheels. The corresponding supporting arms are connected together by aid of connecting pins. The ends of the supporting arms fixed with the spring sleeve 5 are provided with a convex supporting point, and an ejector rod is arranged between the supporting point and the sliding ring. The underground logging centralizer has the advantages that the underground logging centralizer can keep an instrument at the center position of a sleeve, and the supporting arms are equipped with the roller wheels which can reduce friction force between the centralizer and the inner wall of the sleeve during a logging process. The centralizer can obtain best centralizing effect underground.
Description
Technical field
The utility model relates to the oil reservoir logging technical field, and is particularly a kind of in degree of trembling cased well cementing quality side well operations greatly, is used to set upright the erection device of logger.
Background technology
In logging operation, erection device is the down-hole logging equipment of using always.Erection device is mainly used in the horizontal wellbore logging, and when erection device and downhole logging instrument device were operated in level, erection device will carry the total weight of downhole logging instrument device.
The erection device that adopts when at present, logger is gone into the well is the lantern bodily form.There is following problem in original erection device:
1, erection device in the well logging process and casing wall surface pressing are bigger, thereby cause the frictional force between logger and the sleeve pipe bigger, disturb log data sometimes, and logging quality is lower.
2, the uprighting force of erection device can not be regulated, and erection device poor for applicability can only be applicable to well logging in the single caliber sleeve pipe.
3, erection device can not be regulated the backup power of setting upright according to the instrument deadweight at the weak effect of setting upright of down-hole.
In addition, the erection device that uses in the erection device that uses in peupendicular hole well logging and the horizontal wellbore logging is compared, and the erection device that uses in the horizontal wellbore logging will possess bigger radial support power.More to be reduced in simultaneously the frictional force of erection device and downhole logging instrument device and sleeve pipe in the horizontal segment, make that the downhole logging instrument device is easier delivers to horizontal target zone, finish logging tasks.
The utility model content
The purpose of this utility model is: a kind of down-hole well logging erection device is provided, can finishes the centralizing function of logger in horizontal well, the frictional force of erection device and casing wall in the minimizing well logging process; In addition, improve the performance of down-hole erection device, make a cover erection device can be applicable to that logger is set upright in the sleeve pipe of plurality of specifications; Make erection device can obtain the best in the down-hole and set upright effect, thereby obtain high-quality well-log information, finish the horizontal wellbore logging task smoothly.
The technical solution adopted in the utility model is: down-hole well logging erection device, mainly form, the screw thread that is connected with logger is arranged respectively at the two ends of center-pole by support power adjustable ring, slip ring, brace, connecting pin, spring spool, spring, push rod, center-pole and roller.It is characterized in that: symmetry has external screw thread at the middle part of center-pole, is fixed with a spring spool on the external screw thread respectively, and spring spool is enclosed within on the center-pole.Form annular space between spring spool and the center-pole, slip ring and spring are arranged in the annular space between spring spool and center-pole, there is internal thread end at spring spool, is connected with support power adjustable ring on the internal thread of spring spool, and support power adjustable ring is enclosed within on the center-pole.Rotation support power adjustable ring energy regulating spring is to the thrust of slip ring.On the outer wall of two spring spools, fix an end of four braces respectively by bearing pin.Brace is evenly distributed on the outer wall of spring spool.Brace can be rotated along bearing pin, i.e. brace can strut or close up.The other end in brace is connected with roller respectively, and roller can freely rotate.The outer edge of the outstanding brace in the outer of roller.Corresponding brace adopts connecting pin to link together respectively on two spring spools.Brace with the fixing end of spring spool the fulcrum of a projection is arranged, a push rod is arranged between fulcrum and slip ring.Slip ring slides can promote push rod, and push rod promotes the protruding fulcrum in the brace, and brace can be rotated along fixed pin shaft, i.e. brace can strut or close up.
For brace can only be rotated within the specific limits, an arcuate socket is arranged in brace, steady pin is arranged in the arcuate socket, steady pin is fixed on the outer wall of spring spool.
The beneficial effects of the utility model: the utility model down-hole well logging erection device, be a kind of four arm roller erection devices, can make instrument remain on the center of sleeve pipe, roller is installed on the support arm, be rolling friction between roller and the sleeve pipe, can reduce the frictional force of erection device and internal surface of sleeve pipe in the well logging process; The uprighting force of erection device can be regulated size according to hole condition, has strengthened the applicability of erection device.Adopt unique lever principle, make this erection device can obtain the best in the down-hole and set upright effect.
Description of drawings
Fig. 1 is the structural profile schematic diagram of the utility model down-hole well logging erection device.
Among the figure, 1. support power adjustable ring, 2. slip ring, 3. brace, 4. connecting pin, 5. spring spool, 6. spring, 7. push rod, 8. center-pole, 9. roller.
The specific embodiment
Embodiment 1: with a down-hole well logging erection device is example, and the utility model is described in further detail.
Consult Fig. 1.Well logging erection device in the utility model down-hole mainly is made up of support power adjustable ring 1, slip ring 2, brace 3, connecting pin 4, spring spool 5, spring 6, push rod 7, center-pole 8 and roller 9, at the two ends of center-pole 8 external screw thread that is connected with logger is arranged respectively.
Symmetry has external screw thread at the middle part of center-pole 8, is fixed with a spring spool 5 on the external screw thread respectively, and spring spool 5 is enclosed within on the center-pole 8.Form annular space between spring spool 5 and the center-pole 8, a slip ring 2 and a spiral compression spring 6 are arranged in the annular space between spring spool 5 and center-pole 8.The shape of slip ring 2 is annulars.There is internal thread end at spring spool 5, is connected with one on the internal thread of spring spool 5 and is with externally threaded support power adjustable ring 1, and the shape of support power adjustable ring 1 is an annular, and support power adjustable ring 1 is enclosed within on the center-pole 8.
On the outer wall of two spring spools 5, fix an end of four braces 3 respectively by bearing pin.Brace 3 is evenly distributed on the outer wall of spring spool 5.Brace 3 is a bar steel plate.Brace 3 can be rotated along bearing pin.The other end in every brace 3 is connected with a roller 9 respectively.3 millimeters of the outer edges of the outstanding brace 3 in the outer of roller 9.Corresponding brace 3 adopts connecting pin 4 to link together respectively on two spring spools 5.
Brace 3 with the fixing end of spring spool 5 fulcrum of a projection is arranged, a push rod 7 is arranged between fulcrum and slip ring 2.Push rod 7 stretches out from the end of spring spool 5, and make slip ring 2 slide and can promote push rod 7, the protruding fulcrum that push rod 7 promotes in the brace 3, brace 3 can be rotated along fixed pin shaft, i.e. and brace 3 can strut.
An arcuate socket is arranged in each brace 3, a steady pin is arranged in the arcuate socket, steady pin is fixed on the outer wall of spring spool 5.When brace 3 was rotated, arcuate socket slided along steady pin.
The course of work of down-hole well logging erection device is as follows: the center-pole 8 of down-hole well logging erection device is the axis of this down-hole well logging erection device.Support power adjustable ring 1, spring 6, slip ring 2 pass to push rod 7 with the thrust of spring 6, and push rod 7, brace 3, connecting pin constitute a leverage, and roller 9 is in brace 3.The preset force of spring 6 is passed to brace 3, change the power of roller 9 backup casing walls into.Thereby realized the set upright function of this erection device in the down-hole.Roller 9 frictional force in instrument well logging process is less, so the effect of this erection device is better.The precompression of while this erection device energy regulating spring 6, thereby the strength of 9 pairs of casing walls of change roller.The adjustment process of the power of 9 pairs of casing walls of roller is as follows: by rotation support power adjustable ring 1, when the support power adjustable ring 1 that turns clockwise, support power adjustable ring 1 moves in the direction of spring spool 5 to spring 6, the pressure of spring 6 passes to push rod 7 by slip ring 2, and the strength of adjustment of support power adjustable rings 1 are passed to brace 3 by push rod 7, brace 3 is opened, thereby the strength that makes roller 9 be close to internal surface of sleeve pipe increases.When needs reduced the pressure of 9 pairs of internal surface of sleeve pipe of roller, power adjustable ring 1 was supportted in counterclockwise rotation, can realize reducing the pressure of 9 pairs of internal surface of sleeve pipe of roller.
Narrate each functions of components respectively.As shown in Figure 1: the down-hole well logging erection device in this patent has four groups of braces, is 90 degree and is distributed on the outer wall of spring spool 5, and every group of brace is made up of two braces 3.
The thrust of support power adjustable ring 1 energy regulating spring 6, thereby the dynamics of regulating brace 3 reach the dynamics of setting upright of regulating down-hole well logging erection device.
Brace 3 support rollers 9 are set upright to play in the process in the down-hole well logging and are supported borehole wall effect, can make roller 9 can be close to casing wall.
Connecting pin 4 connects the end of two braces 3, and two braces 3 can be relatively rotated.
Spring spool 5 is used to connect brace 3, and push rod 7, slip ring 2, spring 6 are arranged in the spring spool 5, and end thread connects support power adjustable ring 1.
Push rod 7 one ends withstand on the end face of slip ring 2, and the end that the other end sees through spring spool 5 withstands on the fulcrum of brace 3.
Center-pole 8 is the axis of this down-hole well logging erection device, and two ends can connect instrument.
Roller 9 can be close to internal surface of sleeve pipe, makes instrument be in the center of sleeve pipe, moves past the rolling that relies on roller 9 in the journey in the well logging and decreases in frictional force with the sleeve pipe inner arm.
Claims (2)
1, a kind of down-hole well logging erection device, mainly by support power adjustable ring (1), slip ring (2), brace (3), connecting pin (4), spring spool (5), spring (6), push rod (7), center-pole (8) and roller (9) are formed, two ends at center-pole (8) have the screw thread that is connected with logger respectively, it is characterized in that: the middle part symmetry at center-pole (8) has external screw thread, be fixed with a spring spool (5) on the external screw thread respectively, spring spool (5) is enclosed within on the center-pole (8), form annular space between spring spool (5) and the center-pole (8), slip ring (2) and spring (6) are arranged in the annular space between spring spool (5) and center-pole (8), there is internal thread end at spring spool (5), be connected with support power adjustable ring (1) on the internal thread of spring spool (5), support power adjustable ring (1) is enclosed within on the center-pole (8); On the outer wall of two spring spools (5), fix an end of four braces (3) respectively by bearing pin, brace (3) is evenly distributed on the outer wall of spring spool (5), the other end in brace (3) is connected with roller (9) respectively, the outer edge of the outstanding brace (3) in the outer of roller (9), two spring spools (5) are gone up corresponding brace (3) and are adopted connecting pin (4) to link together respectively, brace (3) with the fixing end of spring spool (5) fulcrum of a projection is arranged, between fulcrum and slip ring (2), a push rod (7) is arranged.
2, well logging erection device in down-hole according to claim 1, it is characterized in that: an arcuate socket is arranged in brace (3), steady pin is arranged in the arcuate socket, steady pin is fixed on the outer wall of spring spool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106997U CN201391245Y (en) | 2009-04-17 | 2009-04-17 | Underground logging centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106997U CN201391245Y (en) | 2009-04-17 | 2009-04-17 | Underground logging centralizer |
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| Publication Number | Publication Date |
|---|---|
| CN201391245Y true CN201391245Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106997U Expired - Lifetime CN201391245Y (en) | 2009-04-17 | 2009-04-17 | Underground logging centralizer |
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| CN (1) | CN201391245Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359372A (en) * | 2011-11-11 | 2012-02-22 | 郑州宜源翔石油科技有限公司 | Horizontal sidewall contact device |
| CN103362460A (en) * | 2013-07-24 | 2013-10-23 | 武汉海王机电工程技术公司 | Dislocated support-type centering guide for cased well logger |
| CN104747861A (en) * | 2013-12-31 | 2015-07-01 | 巩宪锋 | Six-arm roller centering device |
| CN105239932A (en) * | 2015-09-22 | 2016-01-13 | 西南石油大学 | Pressing-type damping stabilizer |
| CN106640041A (en) * | 2016-12-20 | 2017-05-10 | 西安威盛电子科技股份有限公司 | Adjustable elastic piece self-folding sensor support structure and logger |
| CN108333631A (en) * | 2018-03-30 | 2018-07-27 | 中国地震局地壳应力研究所 | A kind of body strain instrument erection device |
| CN108798552A (en) * | 2018-06-06 | 2018-11-13 | 黑龙江兰德超声科技股份有限公司 | A kind of pulley-type array induction centralizer |
| CN111441731A (en) * | 2020-04-17 | 2020-07-24 | 四川省科学城久利电子有限责任公司 | Multi-wheel centralizer |
| CN112031677A (en) * | 2020-11-05 | 2020-12-04 | 胜利油田固邦石油装备有限责任公司 | Anti-deformation casing centralizer for oil exploitation |
| CN112253006A (en) * | 2020-11-10 | 2021-01-22 | 武卫琴 | Instrument centering device in open hole well |
| CN112663688A (en) * | 2018-12-04 | 2021-04-16 | 福建博海工程技术有限公司 | Ultrasonic detection method for bridge pile foundation with good lowering stability |
-
2009
- 2009-04-17 CN CN200920106997U patent/CN201391245Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359372A (en) * | 2011-11-11 | 2012-02-22 | 郑州宜源翔石油科技有限公司 | Horizontal sidewall contact device |
| CN102359372B (en) * | 2011-11-11 | 2013-11-13 | 郑州宜源翔石油科技有限公司 | Horizontal sidewall contact device |
| CN103362460A (en) * | 2013-07-24 | 2013-10-23 | 武汉海王机电工程技术公司 | Dislocated support-type centering guide for cased well logger |
| CN104747861A (en) * | 2013-12-31 | 2015-07-01 | 巩宪锋 | Six-arm roller centering device |
| CN105239932A (en) * | 2015-09-22 | 2016-01-13 | 西南石油大学 | Pressing-type damping stabilizer |
| CN106640041A (en) * | 2016-12-20 | 2017-05-10 | 西安威盛电子科技股份有限公司 | Adjustable elastic piece self-folding sensor support structure and logger |
| CN108333631A (en) * | 2018-03-30 | 2018-07-27 | 中国地震局地壳应力研究所 | A kind of body strain instrument erection device |
| CN108333631B (en) * | 2018-03-30 | 2024-04-16 | 应急管理部国家自然灾害防治研究院 | Body strain gauge righting device |
| CN108798552A (en) * | 2018-06-06 | 2018-11-13 | 黑龙江兰德超声科技股份有限公司 | A kind of pulley-type array induction centralizer |
| CN112663688A (en) * | 2018-12-04 | 2021-04-16 | 福建博海工程技术有限公司 | Ultrasonic detection method for bridge pile foundation with good lowering stability |
| CN111441731A (en) * | 2020-04-17 | 2020-07-24 | 四川省科学城久利电子有限责任公司 | Multi-wheel centralizer |
| CN112031677A (en) * | 2020-11-05 | 2020-12-04 | 胜利油田固邦石油装备有限责任公司 | Anti-deformation casing centralizer for oil exploitation |
| CN112031677B (en) * | 2020-11-05 | 2021-01-12 | 胜利油田固邦石油装备有限责任公司 | Anti-deformation casing centralizer for oil exploitation |
| CN112253006A (en) * | 2020-11-10 | 2021-01-22 | 武卫琴 | Instrument centering device in open hole well |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |