CN107165620B - Wireless measurement while drilling instrument - Google Patents
Wireless measurement while drilling instrument Download PDFInfo
- Publication number
- CN107165620B CN107165620B CN201710594314.2A CN201710594314A CN107165620B CN 107165620 B CN107165620 B CN 107165620B CN 201710594314 A CN201710594314 A CN 201710594314A CN 107165620 B CN107165620 B CN 107165620B
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- CN
- China
- Prior art keywords
- centralizer
- spline
- outer cylinder
- control valve
- oil chamber
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- 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.)
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
Abstract
The invention discloses a wireless measurement while drilling instrument, which comprises an upper joint of a centralizer and a gamma probe tube, wherein the right side of the upper joint of the centralizer is provided with a spline outer cylinder, the right side of the spline outer cylinder is provided with a spline mandrel, the outside of the spline outer cylinder is provided with a noise reduction absorption layer, the outside of the noise reduction absorption layer is provided with a centralizer shell, the middle position of the right end of the centralizer shell is provided with a sealing ring, and an antenna wiring end is arranged above the right side of the sealing ring; some interference noise absorption to organism outside are handled, make the signal that the receiver received purer, adopt spline connection between grease chamber dabber and spline urceolus, and the bearing capacity of spline is bigger, makes more stable between the axle at the shock attenuation in-process, and it is little influenced by vibrations, has set up helical antenna receiver, and the signal reception scope that makes the measuring apparatu is bigger to the part that arrives more deeply surveys, and keeps the precision of measuring apparatu.
Description
Technical Field
The invention belongs to the technical field of measurement while drilling instruments, and particularly relates to a wireless measurement while drilling instrument.
Background
The mechanical wireless inclinometer while drilling solves the problem that the existing instrument can not be used for inclination measurement when rapidly drilling a well section, a deep well and a high-temperature well at the upper part, simultaneously solves the problem that the inclined stratum is easy to incline and needs to be frequently measured, realizes wireless inclination measurement while drilling, and has the advantages of low manufacturing cost, simple and reliable field use and lower use and maintenance cost compared with an electronic MWD instrument and other types of inclinometers. Has very high cost performance.
When the original wireless measurement-while-drilling instrument enters the underground to work, the signal reception is weak because the well is deep, and the signal transmission is influenced by noise generated by ground equipment during working, vibration generated during drilling and noise, so that the measurement-while-drilling precision is influenced.
Disclosure of Invention
The invention aims to provide a wireless measurement-while-drilling instrument, and aims to solve the problems that when the original wireless measurement-while-drilling instrument enters a well and works, the signal reception is weak because the well is deep, and the transmission of the signal is influenced by noise generated by ground equipment during working, vibration generated during drilling and noise, so that the measurement-while-drilling precision is influenced.
In order to achieve the purpose, the invention provides the following technical scheme:
a wireless measurement while drilling instrument comprises a centralizer upper joint and a gamma probe, wherein a spline outer cylinder is arranged on the right side of the centralizer upper joint, a spline mandrel is arranged on the right side of the spline outer cylinder, a noise reduction absorption layer is arranged outside the spline outer cylinder, a centralizer shell is arranged outside the noise reduction absorption layer, a sealing ring is arranged in the middle of the right end of the centralizer shell, an antenna wiring end is arranged above the right side of the sealing ring, a spiral antenna receiver is arranged at the right end of the antenna wiring end, an oil chamber mandrel is arranged at the left end inside the spiral antenna receiver, a pressure control valve is arranged on the right side of the oil chamber mandrel, a control valve seat is arranged at the left end of the pressure control valve, a balance piston is arranged at the right end of the pressure control valve, an oil chamber outer cylinder is arranged on the right side of the balance piston, and a lower connector connecting, the right side intermediate position department of lower joint connecting seat is provided with the lower joint external screw thread, gamma is visited the pipe and is installed in the left side of centralizer shell, and the right side of centralizer shell is provided with the impulse generator assembly, the right side of impulse generator assembly is provided with the detecting head, pressure control valve, helical antenna receiver, control valve seat, gamma are visited pipe and detecting head and all with external power source electric connection.
Preferably, the centralizer shell is fixedly connected with the pulse generator assembly through a lower connector external thread.
Preferably, the sealing rings are three in number, and the three sealing rings are all installed inside the centralizer shell.
Preferably, the oil chamber mandrel is fixedly connected with the centralizer shell through a spline mandrel.
Preferably, the pressure control valve is connected with the oil chamber outer cylinder in a sliding mode through a balance piston.
Compared with the prior art, the invention has the beneficial effects that:
the invention has scientific and reasonable structure and safe and convenient use, the noise reduction absorption layer is arranged in the centralizer shell, and can absorb and process some interference noise outside the machine body, so that the signal received by the receiver is purer, the transmission precision is ensured, the spline connection is adopted between the oil chamber mandrel and the spline outer cylinder, the bearing capacity of the spline is larger, the shaft is more stable in the shock absorption process, the influence of shock is small, and the helical antenna receiver is arranged, so that the signal receiving range of the measuring instrument is larger, deeper parts can be reached for surveying, and the precision of the measuring instrument is maintained.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
in the figure: the device comprises a pressure control valve 1, an oil chamber outer cylinder 2, a lower joint outer thread 3, a lower joint connecting seat 4, a spiral antenna receiver 5, a balance piston 6, an oil chamber mandrel 7, a spline mandrel 8, a noise reduction absorption layer 9, a centralizer upper joint 10, a centralizer shell 11, a spline outer cylinder 12, a sealing ring 13, an antenna terminal 14, a control valve seat 15, a gamma probe 16, a probe 17 and a pulse generator assembly 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution:
the stabilizer comprises a centralizer upper joint 10 and a gamma probe 16, a spline outer cylinder 12 is arranged on the right side of the centralizer upper joint 10, a spline mandrel 8 is arranged on the right side of the spline outer cylinder 12, a noise reduction absorption layer 9 is arranged outside the spline outer cylinder 12, a centralizer shell 11 is arranged outside the noise reduction absorption layer 9, a sealing ring 13 is arranged in the middle of the right end of the centralizer shell 11, an antenna wiring end 14 is arranged above the right side of the sealing ring 13, a spiral antenna receiver 5 is arranged at the right end of the antenna wiring end 14, an oil chamber mandrel 7 is arranged at the left end inside the spiral antenna receiver 5, a pressure control valve 1 is arranged on the right side of the oil chamber mandrel 7, a control valve seat 15 is arranged at the left end of the pressure control valve 1, a balance piston 6 is arranged at the right end of the pressure control valve 1, an oil chamber outer cylinder 2 is arranged at the right side of, the right middle position department of lower joint connecting seat 4 is provided with lower joint external screw thread 3, and gamma is visited pipe 16 and is installed in the left side of centralizer shell 11, and the right side of centralizer shell 11 is provided with impulse generator assembly 18, and impulse generator assembly 18's right side is provided with detecting head 17, and pressure control valve 1, helical antenna receiver 5, control valve seat 15, gamma are visited pipe 16 and detecting head 17 and all with external power source electric connection.
In order to achieve the tightness of the connection between the centralizer housing 11 and the pulse generator assembly 18, in the present embodiment, it is preferred that the centralizer housing 11 and the pulse generator assembly 18 are fixedly connected by the lower joint external thread 3.
In order to make the seal of the inside of the centralizer casing 11 good, in the present embodiment, it is preferable that the number of the seal rings 13 is three, and all of the three seal rings 13 are installed inside the centralizer casing 11.
In order to ensure the tightness of the connection between the oil chamber mandrel 7 and the centralizer casing 11, in the present embodiment, the oil chamber mandrel 7 and the centralizer casing 11 are preferably fixedly connected by the spline mandrel 8.
In order to facilitate the control of the opening and closing of the pressure control valve 1, in the present embodiment, it is preferable that the pressure control valve 1 and the oil chamber outer cylinder 2 are slidably connected by a balance piston 6.
The spline mandrel 8 of the invention works in multiple teeth, has high bearing capacity, good centering performance, good guidance performance, shallow tooth root, small stress concentration, small strength weakening between the shaft and the hub, convenient processing and can obtain higher precision by a grinding method.
The working principle and the using process of the invention are as follows: after the centralizer is installed, a centralizer shell 11 is connected with a pulse generator assembly 18 through a lower joint external thread 3 on a lower joint connecting seat 4, the centralizer upper joint 10 is connected with a gamma probe 16, an external power supply is switched on, a probe 17 conducts drilling work, the gamma probe 16 and the pulse generator assembly 18 conduct data acquisition and processing, an oil chamber mandrel 7 in the centralizer shell 11 can receive and transmit signals with ground equipment, a pressure control valve 1 slides in an oil chamber outer cylinder 2 to conduct buffering and shock absorption, the spline outer cylinder 12 and the oil chamber mandrel 7 are connected more tightly through a spline mandrel 8, the bearing capacity is larger, and sealing rings 13 enable all parts to be sealed and not interfered with each other.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A wireless measurement-while-drilling instrument comprising a centralizer upper joint (10) and a gamma probe (16), characterized in that:
a spline outer cylinder (12) is arranged on the right side of the centralizer upper joint (10), a spline mandrel (8) is arranged on the right side of the spline outer cylinder (12), a noise reduction absorption layer (9) is arranged outside the spline outer cylinder (12), and a centralizer shell (11) is arranged outside the noise reduction absorption layer (9);
a sealing ring (13) is arranged in the middle of the right end of the centralizer shell (11), an antenna wiring end (14) is arranged above the right side of the sealing ring (13), a spiral antenna receiver (5) is arranged at the right end of the antenna wiring end (14), an oil chamber mandrel (7) is arranged at the left end of the interior of the spiral antenna receiver (5), and a pressure control valve (1) is arranged on the right side of the oil chamber mandrel (7);
a control valve seat (15) is arranged at the left end of the pressure control valve (1), a balance piston (6) is arranged at the right end of the pressure control valve (1), an oil chamber outer cylinder (2) is arranged on the right side of the balance piston (6), a lower joint connecting seat (4) is arranged on the right side of the oil chamber outer cylinder (2), and a lower joint external thread (3) is arranged in the middle position of the right side of the lower joint connecting seat (4);
the gamma detection tube (16) is installed on the left side of the centralizer shell (11), a pulse generator assembly (18) is arranged on the right side of the centralizer shell (11), a detection head (17) is arranged on the right side of the pulse generator assembly (18), and the pressure control valve (1), the spiral antenna receiver (5), the control valve seat (15), the gamma detection tube (16) and the detection head (17) are all electrically connected with an external power supply.
2. The wireless measurement-while-drilling instrument of claim 1, wherein: the centralizer shell (11) is fixedly connected with the pulse generator assembly (18) through a lower joint external thread (3).
3. The wireless measurement-while-drilling instrument of claim 1, wherein: the sealing rings (13) are arranged in three numbers, and the three sealing rings (13) are all installed inside the centralizer shell (11).
4. The wireless measurement-while-drilling instrument of claim 1, wherein: the oil chamber mandrel (7) is fixedly connected with the centralizer shell (11) through a spline mandrel (8).
5. The wireless measurement-while-drilling instrument of claim 1, wherein: the pressure control valve (1) is connected with the oil chamber outer cylinder (2) in a sliding mode through a balance piston (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594314.2A CN107165620B (en) | 2017-07-20 | 2017-07-20 | Wireless measurement while drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594314.2A CN107165620B (en) | 2017-07-20 | 2017-07-20 | Wireless measurement while drilling instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165620A CN107165620A (en) | 2017-09-15 |
| CN107165620B true CN107165620B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710594314.2A Active CN107165620B (en) | 2017-07-20 | 2017-07-20 | Wireless measurement while drilling instrument |
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| Country | Link |
|---|---|
| CN (1) | CN107165620B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198740Y (en) * | 2008-03-24 | 2009-02-25 | 郑州士奇测控技术有限公司 | Wireless centralizer following with drill |
| CN201874554U (en) * | 2010-11-02 | 2011-06-22 | 中国石油集团川庆钻探工程有限公司 | Shock absorber applicable to measurement-while-drilling probes |
| EP2961926A1 (en) * | 2013-02-27 | 2016-01-06 | Evolution Engineering Inc. | Fluid pressure pulse generating apparatus and method of using same |
| CN106640054A (en) * | 2016-12-01 | 2017-05-10 | 中国石油天然气集团公司 | Well logging during drilling data transmission device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2831496C (en) * | 2013-10-02 | 2019-05-14 | Weatherford/Lamb, Inc. | Method of operating a downhole tool |
-
2017
- 2017-07-20 CN CN201710594314.2A patent/CN107165620B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198740Y (en) * | 2008-03-24 | 2009-02-25 | 郑州士奇测控技术有限公司 | Wireless centralizer following with drill |
| CN201874554U (en) * | 2010-11-02 | 2011-06-22 | 中国石油集团川庆钻探工程有限公司 | Shock absorber applicable to measurement-while-drilling probes |
| EP2961926A1 (en) * | 2013-02-27 | 2016-01-06 | Evolution Engineering Inc. | Fluid pressure pulse generating apparatus and method of using same |
| CN106640054A (en) * | 2016-12-01 | 2017-05-10 | 中国石油天然气集团公司 | Well logging during drilling data transmission device and method |
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| Publication number | Publication date |
|---|---|
| CN107165620A (en) | 2017-09-15 |
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