CN108266145B - Pushing device and logging instrument with same - Google Patents
Pushing device and logging instrument with same Download PDFInfo
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- CN108266145B CN108266145B CN201611265790.1A CN201611265790A CN108266145B CN 108266145 B CN108266145 B CN 108266145B CN 201611265790 A CN201611265790 A CN 201611265790A CN 108266145 B CN108266145 B CN 108266145B
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a pushing device and a logging instrument with the same. The pushing device comprises a sliding rod, a driving mechanism and a stabilizing mechanism, wherein the sliding rod is slidably arranged in a shell of the logging instrument, and one end of the sliding rod is a pressing end used for pressing a detector of the logging instrument; the driving mechanism is connected with the other end of the sliding rod to drive the sliding rod to tightly press the detector; the stabilizing mechanism is arranged on the sliding rod and used for fixing the logging instrument on the inner wall of the wellhead after the logging instrument enters the wellhead. By applying the pushing device in the technical scheme of the invention, the three-component detector in the logging instrument can be firmly fixed without vibration in the VSP testing process. The problem of thereby the logging precision is influenced to the easy vibration of three-component detector of logging instrument among the prior art is solved.
Description
Technical Field
The invention relates to the field of detection instruments, in particular to a pushing device and a logging instrument with the same.
Background
VSP (vertical Seismic profiling), namely a vertical Seismic profile, is a Seismic observation method. Which corresponds to a seismic profile observed on a typical surface. The vertical seismic profiling method is to excite seismic waves at some points near the surface of the earth and to observe at some multistage multicomponent geophone points located at different depths along the borehole. In a vertical seismic section, a three-component detector in a logging instrument is arranged in a stratum through a well hole, so that not only can an uplink longitudinal wave and an uplink converted wave which are transmitted from bottom to top be received, but also a downlink longitudinal wave and a downlink converted wave which are transmitted from top to bottom can be received, and even a transverse wave can be received. This is one of the most important features of a vertical seismic section compared to a surface seismic section.
In the test process of VSP, the three-component detector of the existing logging instrument is easy to vibrate, so that the logging accuracy is influenced.
Disclosure of Invention
The invention mainly aims to provide a pushing device and a logging instrument with the pushing device, and aims to solve the problem that a three-component detector of the logging instrument in the prior art is easy to vibrate so as to influence logging accuracy.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pushing device comprising: the sliding rod is slidably arranged in the shell of the logging instrument, and one end of the sliding rod is a pressing end used for pressing a detector of the logging instrument; the driving mechanism is connected with the other end of the sliding rod to drive the sliding rod to tightly press the detector; and the stabilizing mechanism is arranged on the sliding rod and used for fixing the logging instrument on the inner wall of the wellhead after the logging instrument enters the wellhead.
Further, the drive mechanism includes: and the driving motor is in driving connection with the sliding rod and is used for driving the sliding rod to slide in the shell of the logging instrument.
Further, the drive mechanism further includes: the screw rod is rotatably connected with a driving shaft of the driving motor; the screw rod nut is arranged at the end part of the slide rod and is matched with the screw rod; the lead screw is in threaded connection with the lead screw nut, and the driving motor drives the sliding rod to slide in the shell of the logging instrument through the lead screw and the lead screw nut.
Furthermore, the end of the sliding rod is provided with an accommodating hole for accommodating the screw rod to move along the axial direction of the sliding rod, and the screw rod nut is arranged in the accommodating hole so that the screw rod can move in the accommodating hole.
Further, the drive mechanism further includes: and the driving shaft of the driving motor is connected with the screw rod through the connecting piece.
Further, the stabilizing mechanism includes: the well logging instrument comprises a pushing arm, a connecting rod and a connecting rod, wherein one end of the pushing arm is a hinged end, the other end of the pushing arm is a free end, and the pushing arm is hinged to a shell of the well logging instrument through the hinged end so as to enable the free end of the pushing arm to rotate around the hinged end; and the pushing assembly is connected with the pushing arm and used for pushing the pushing arm to rotate so that the free end of the pushing arm is unfolded and tightly pressed on the inner wall of the wellhead to fix the logging instrument.
Further, the pushing assembly includes: the driving arm is hinged with a preset part between the hinged end and the free end of the leaning arm at one end; the sliding block is arranged on the sliding rod in a sliding mode, the other end of the driving arm is hinged to the sliding block, and the free end of the pushing arm is pushed to be unfolded through the driving arm when the sliding block slides.
Further, the pushing assembly further comprises: one end of the compression spring is connected with the sliding block, and the other end of the compression spring is connected with the sliding rod; the sliding rod pushes the sliding block to move through the compression spring when sliding.
Further, the pushing assembly further comprises: the baffle ring is sleeved on the sliding rod; wherein the end of the compression spring abuts against the stopper ring to be connected with the slide bar.
Further, the pushing device further comprises: and the pressing head is arranged on the pressing end of the sliding rod, and the sliding rod presses a detector of the logging instrument through the pressing head.
According to another aspect of the invention, there is provided a logging instrument comprising: the pushing device is the pushing device with the content.
The pushing device applying the technical scheme of the invention comprises a sliding rod, a driving mechanism and a stabilizing mechanism, wherein the sliding rod is slidably arranged in a shell of the logging instrument, and one end of the sliding rod is a pressing end for pressing a detector of the logging instrument; the driving mechanism is connected with the other end of the sliding rod to drive the sliding rod to tightly press the detector; the stabilizing mechanism is arranged on the sliding rod and used for fixing the logging instrument on the inner wall of the wellhead after the logging instrument enters the wellhead. Therefore, the three-component detector in the logging instrument can be firmly fixed and cannot vibrate in the VSP testing process. The problem of thereby the logging precision is influenced to the easy vibration of three-component detector of logging instrument among the prior art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic partial structure of an alternative pushing device according to an embodiment of the invention;
fig. 2 is a schematic overall structure diagram of an alternative pushing device according to an embodiment of the invention.
Wherein the figures include the following reference numerals:
10. a slide bar; 11. an accommodation hole; 20. a housing; 30. a detector; 40. a drive mechanism; 41. a drive motor; 42. a lead screw; 43. a lead screw nut; 44. a connecting member; 50. a stabilizing mechanism; 51. a backup arm; 52. a pushing assembly; 521. a drive arm; 522. a slider; 523. a compression spring; 524. a baffle ring; 60. and a compression head.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The pushing device according to the embodiment of the invention, as shown in fig. 1 and 2, comprises: the sliding rod 10 is slidably arranged in a shell 20 of the logging instrument, and one end of the sliding rod 10 is a pressing end used for pressing a detector 30 of the logging instrument; the driving mechanism 40 is connected with the other end of the sliding rod 10 to drive the sliding rod 10 to press the wave detector 30; and the stabilizing mechanism 50 is arranged on the sliding rod 10 and used for fixing the logging instrument on the inner wall of the wellhead after the logging instrument enters the wellhead.
The pushing device applying the technical scheme of the invention comprises a sliding rod 10, a driving mechanism 40 and a stabilizing mechanism 50, wherein the sliding rod 10 is slidably arranged in a shell 20 of the logging instrument, and one end of the sliding rod 10 is a pressing end for pressing a detector 30 of the logging instrument; the driving mechanism 40 is connected with the other end of the slide bar 10 to drive the slide bar 10 to press the detector 30 tightly; a stabilizing mechanism 50 is provided on the slide bar 10 for securing the logging instrument to the inner wall of the wellhead after the logging instrument has entered the wellhead. Therefore, the three-component detector in the logging instrument can be firmly fixed and cannot vibrate in the VSP testing process. The problem of thereby the logging precision is influenced to the easy vibration of three-component detector of logging instrument among the prior art is solved.
In a specific implementation, as shown in fig. 2, the driving mechanism 40 includes: the driving motor 41 is arranged at one end of the logging instrument along the axial direction of the logging instrument, and the driving motor 41 is in driving connection with the sliding rod 10 and is used for driving the sliding rod 10 to slide in the shell 20 of the logging instrument so that the pressing end of the sliding rod 10 presses the geophone 30.
Further, the driving mechanism 40 further includes: a lead screw 42 and a lead screw nut 43, the lead screw 42 is rotatably connected with a driving shaft of the driving motor 41,
the lead screw nut 43 is provided at an end portion of the slide bar 10, and the lead screw 42, the lead screw nut 43, a drive shaft of the drive motor 41, and the slide bar 10 are coaxial. The lead screw nut 43 is matched with the lead screw 42, the lead screw 42 is in threaded connection with the lead screw nut 43, the driving motor 41 drives the lead screw 42 to rotate when in operation, and the lead screw 42 drives the slide rod 10 to slide in the casing 20 of the logging instrument through the lead screw nut 43 so as to press the geophone 30. Alternatively, a coupling 44 is provided between the drive shaft of the drive motor 41 and the lead screw 42, and the drive shaft of the drive motor 41 is connected to the lead screw 42 through the coupling 44.
In order to ensure that the slide bar 10 does not collide with the lead screw 42 in the length direction during the sliding process, further, the end of the slide bar 10 is provided with a receiving hole 11 along the axial direction thereof for receiving the lead screw 42 to move, and the lead screw nut 43 is disposed in the receiving hole 11 so that the lead screw 42 can extend into the receiving hole 11 in the receiving hole 11 when the slide bar 10 is driven to retract to the end away from the wave detector 30, thereby ensuring that the slide bar 10 does not collide with the lead screw 42 during the working process.
After the slide bar 10 compresses tightly the detector 30, stabilizing mean 50 can prevent that the logging instrument wholly from shaking in the well head, specifically, stabilizing mean 50 includes: the logging instrument comprises a pushing arm 51 and a pushing assembly 52, wherein one end of the pushing arm 51 is a hinged end, the other end of the pushing arm 51 is a free end, and the pushing arm 51 is hinged to the casing 20 of the logging instrument through the hinged end so that the free end of the pushing arm 51 rotates around the hinged end; the pushing assembly 52 is connected to the push arm 51 for pushing the push arm 51 to rotate so that the free end of the push arm 51 is spread and pressed against the inner wall of the wellhead to fix the logging tool.
Specifically, the pushing assembly 52 includes: and a driving arm 521 and a slider 522, wherein one end of the driving arm 521 is hinged to a predetermined position between the hinged end and the free end of the armrest 51, and for convenience of control, the hinged point of the driving arm 521 and the armrest 51 is close to the hinged end of the armrest 51. The sliding block 522 is slidably disposed on the sliding rod 10, the other end of the driving arm 521 is hinged to the sliding block 522, and the sliding block 522 is pushed by the driving arm 521 to spread the free end of the pushing arm 51.
In order to reduce the impact of vibration after the pressing of the pushing arm 51 and the inner wall of the wellhead, the pushing assembly 52 further comprises: one end of the compression spring 523 is connected with the sliding block 522, the other end of the compression spring 523 is fixedly connected with the sliding rod 10, and when the sliding rod 10 slides, the sliding block 522 is pushed by the compression spring 523 to move, so that the free end of the backup arm 51 is driven to expand and tightly press the inner wall of the wellhead.
For convenience of installation, a stop ring 524 is sleeved on the sliding rod 10, wherein an end of the compression spring 523 abuts against the stop ring 524 to connect with the sliding rod 10, the compression spring 523 is compressed by the stop ring 524 when the sliding rod 10 slides, and the compression spring 523 applies corresponding elastic force to the slider 522 to push the slider 522 to move.
In order to firmly press and fix the geophone 30, optionally, a pressing head 60 is arranged on the pressing end of the slide rod 10, the pressing head 60 has a larger contact area, and the slide rod 10 can fix the geophone 30 more firmly by pressing the geophone 30 of the logging tool through the pressing head 60.
According to another embodiment of the invention, there is provided a logging instrument comprising: a pushing device, which is the pushing device of the above embodiment. The logging instrument applying the pushing device of the embodiment can firmly fix the three-component detector in the logging instrument without vibration in the VSP testing process. The problem of thereby the logging precision is influenced to the easy vibration of three-component detector of logging instrument among the prior art is solved.
The logging instrument of the embodiment specifically comprises a shell, an optical fiber VSP three-component probe and a pushing device, wherein the optical fiber VSP three-component probe is installed in the shell, the pushing device realizes the pushing action, the shell is provided with a circuit cavity, and a circuit component for controlling the pushing device is arranged in the circuit cavity.
The upper rotary joint is connected with the shell through a threaded ring, the upper joint is connected with the upper adapter, the photoelectric composite cable is connected with the upper joint, the optical cable is connected with a clamping sleeve positioned in the upper rotary joint after being led out from the photoelectric composite cable, and the optical fiber is led out from the optical cable and is connected with the optical fiber in the optical fiber VSP three-component probe. The wires in the opto-electric composite cable are led through an electrical sealing plug to the circuit component located in the circuit cavity. The electric sealing plug is positioned on the upper conversion head.
Similarly, the lower rotary joint is connected with the shell through a threaded ring, the lower rotary joint is connected with the lower joint, the photoelectric composite cable is connected with the lower joint, and the optical cable is led out of the photoelectric composite cable and then connected with the clamping sleeve positioned in the lower rotary joint. The optical fibers are through-fibers that are introduced into the cable through fiber channels located in the housing. The wires in the opto-electric composite cable are led through an electrical sealing plug to the circuit component located in the circuit cavity. The electric sealing plug is positioned on the lower adapter.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A sidewall contact apparatus, comprising:
the sliding rod (10) is slidably arranged in a shell (20) of the logging instrument, and one end of the sliding rod (10) is a pressing end used for pressing a detector (30) of the logging instrument;
the driving mechanism (40) is connected with the other end of the sliding rod (10) to drive the sliding rod (10) to press the detector (30);
and the stabilizing mechanism (50) is arranged on the sliding rod (10) and is used for fixing the logging instrument on the inner wall of a wellhead after the logging instrument enters the wellhead.
2. The thrust device according to claim 1, characterized in that said driving mechanism (40) comprises:
and the driving motor (41) is in driving connection with the sliding rod (10) and is used for driving the sliding rod (10) to slide in the shell (20) of the logging instrument.
3. The thrust device according to claim 2, characterized in that said driving mechanism (40) further comprises:
a lead screw (42) rotatably connected to a drive shaft of the drive motor (41);
the screw rod nut (43) is arranged at the end part of the sliding rod (10) and is matched with the screw rod (42);
the lead screw (42) is in threaded connection with the lead screw nut (43), and the driving motor (41) drives the sliding rod (10) to slide in a shell (20) of the logging instrument through the lead screw (42) and the lead screw nut (43).
4. The pushing device according to claim 3, characterized in that the end of the sliding rod (10) is provided with a receiving hole (11) along the axial direction thereof for accommodating the lead screw (42) to move, and the lead screw nut (43) is arranged in the receiving hole (11) so that the lead screw (42) can move in the receiving hole (11).
5. The thrust device according to claim 3, characterized in that said driving mechanism (40) further comprises:
a connecting piece (44), wherein the driving shaft of the driving motor (41) is connected with the lead screw (42) through the connecting piece (44).
6. The thrust device according to claim 1, characterized in that said stabilizing mechanism (50) comprises:
the well logging instrument comprises a pushing arm (51), wherein one end of the pushing arm (51) is a hinged end, the other end of the pushing arm (51) is a free end, and the pushing arm (51) is hinged to a shell (20) of the well logging instrument through the hinged end so that the free end of the pushing arm (51) rotates around the hinged end;
and the pushing assembly (52) is connected with the pushing arm (51) and is used for pushing the pushing arm (51) to rotate so that the free end of the pushing arm (51) is unfolded and pressed on the inner wall of the wellhead to fix the logging instrument.
7. The thrust device according to claim 6, characterized in that said pushing assembly (52) comprises:
a driving arm (521), wherein one end of the driving arm (521) is hinged with a preset position between the hinged end and the free end of the pushing arm (51);
the sliding block (522) is slidably arranged on the sliding rod (10), the other end of the driving arm (521) is hinged with the sliding block (522), and the free end of the pushing arm (51) is pushed to be unfolded through the driving arm (521) when the sliding block (522) slides.
8. The thrust device of claim 7, wherein said thrust assembly (52) further comprises:
one end of the compression spring (523) is connected with the sliding block (522), and the other end of the compression spring (523) is connected with the sliding rod (10);
when the sliding rod (10) slides, the sliding block (522) is pushed to move through the compression spring (523).
9. The thrust device of claim 8, wherein said thrust assembly (52) further comprises:
the retaining ring (524) is sleeved on the sliding rod (10);
wherein an end of the compression spring (523) abuts against the stopper ring (524) to be connected with the slide bar (10).
10. The pushing device of claim 1, further comprising:
the pressing head (60) is arranged on the pressing end of the sliding rod (10), and the sliding rod (10) presses the detector (30) of the logging instrument through the pressing head (60).
11. A logging instrument, comprising: an urging device according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265790.1A CN108266145B (en) | 2016-12-30 | 2016-12-30 | Pushing device and logging instrument with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265790.1A CN108266145B (en) | 2016-12-30 | 2016-12-30 | Pushing device and logging instrument with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266145A CN108266145A (en) | 2018-07-10 |
| CN108266145B true CN108266145B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611265790.1A Active CN108266145B (en) | 2016-12-30 | 2016-12-30 | Pushing device and logging instrument with same |
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| CN (1) | CN108266145B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396029B (en) * | 2020-03-19 | 2021-06-25 | 中国地质大学（北京） | Pushing device in conveying device for lowering and recovering vertical well logging instrument |
| CN113266336A (en) * | 2021-04-25 | 2021-08-17 | 中石化石油工程技术服务有限公司 | Vertical seismic logging instrument acquisition nipple for fracture monitoring |
| CN113863881A (en) * | 2021-10-25 | 2021-12-31 | 杭州瑞利声电技术有限公司 | Logging instrument pushing device capable of being automatically folded |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715469A (en) * | 1985-08-29 | 1987-12-29 | Petrophysical Services, Inc. | Borehole seismic receiver |
| US5438169A (en) * | 1994-08-30 | 1995-08-01 | Western Atlas International, Inc. | Apparatus and method for determining the quality of clamping of a borehole seismic sensor system to the wall of a wellbore |
| CN200978669Y (en) * | 2006-12-14 | 2007-11-21 | 中国石油天然气集团公司 | Downhole safety eccentering device for logger |
| CN101545980A (en) * | 2008-03-26 | 2009-09-30 | 威海双丰物探设备股份有限公司 | Well logging detector device |
| CN202578676U (en) * | 2011-10-12 | 2012-12-05 | 李群 | A small-diameter backup device for a cased well logging instrument |
-
2016
- 2016-12-30 CN CN201611265790.1A patent/CN108266145B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715469A (en) * | 1985-08-29 | 1987-12-29 | Petrophysical Services, Inc. | Borehole seismic receiver |
| US5438169A (en) * | 1994-08-30 | 1995-08-01 | Western Atlas International, Inc. | Apparatus and method for determining the quality of clamping of a borehole seismic sensor system to the wall of a wellbore |
| CN200978669Y (en) * | 2006-12-14 | 2007-11-21 | 中国石油天然气集团公司 | Downhole safety eccentering device for logger |
| CN101545980A (en) * | 2008-03-26 | 2009-09-30 | 威海双丰物探设备股份有限公司 | Well logging detector device |
| CN202578676U (en) * | 2011-10-12 | 2012-12-05 | 李群 | A small-diameter backup device for a cased well logging instrument |
Non-Patent Citations (1)
| Title |
|---|
| 井中地震勘探仪器的现状与发展;董世泰等;《物探装备》;20021231;第12卷(第04期);全文 * |
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