CN106223937A - 一种适用于井下近钻头无线短传的接收装置 - Google Patents
一种适用于井下近钻头无线短传的接收装置 Download PDFInfo
- Publication number
- CN106223937A CN106223937A CN201610799298.6A CN201610799298A CN106223937A CN 106223937 A CN106223937 A CN 106223937A CN 201610799298 A CN201610799298 A CN 201610799298A CN 106223937 A CN106223937 A CN 106223937A
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- China
- Prior art keywords
- electrical isolation
- mwd
- reception device
- short
- drill collar
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- Granted
Links
- 238000002955 isolation Methods 0.000 claims abstract description 64
- 210000002445 nipple Anatomy 0.000 claims description 30
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 14
- 239000006096 absorbing agent Substances 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 14
- 238000005553 drilling Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 210000001215 vagina Anatomy 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
- 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
-
- 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
- E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
-
- 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
-
- 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
- E21B17/028—Electrical or electro-magnetic connections
- E21B17/0285—Electrical or electro-magnetic connections characterised by electrically insulating elements
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
-
- 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
- E21B17/16—Drill collars
-
- 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
- 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
- E21B47/14—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 using acoustic waves
- E21B47/16—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 using acoustic waves through the drill string or casing, e.g. by torsional acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
- G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/34—Transmitting data to recording or processing apparatus; Recording data
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Earth Drilling (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610799298.6A CN106223937B (zh) | 2016-08-31 | 2016-08-31 | 一种适用于井下近钻头无线短传的接收装置 |
US15/692,776 US9970288B2 (en) | 2016-08-31 | 2017-08-31 | Receiving apparatus for downhole near-bit wireless transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610799298.6A CN106223937B (zh) | 2016-08-31 | 2016-08-31 | 一种适用于井下近钻头无线短传的接收装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106223937A true CN106223937A (zh) | 2016-12-14 |
CN106223937B CN106223937B (zh) | 2017-09-29 |
Family
ID=58074597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610799298.6A Expired - Fee Related CN106223937B (zh) | 2016-08-31 | 2016-08-31 | 一种适用于井下近钻头无线短传的接收装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9970288B2 (zh) |
CN (1) | CN106223937B (zh) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107558993A (zh) * | 2017-09-08 | 2018-01-09 | 中国科学院地质与地球物理研究所 | 一体化随钻声波接收换能器封装装置 |
CN108843242A (zh) * | 2018-07-09 | 2018-11-20 | 西安石大斯泰瑞油田技术有限公司 | 一种低成本高造斜率和高机械钻速的旋转导向钻井系统 |
CN111236929A (zh) * | 2019-12-22 | 2020-06-05 | 中国电波传播研究所(中国电子科技集团公司第二十二研究所) | 一种易于加工实现的随钻电磁波电阻率仪 |
CN112160745A (zh) * | 2020-09-29 | 2021-01-01 | 北京六合伟业科技股份有限公司 | 一种适用于金刚石岩心钻探emwd电磁波测量系统 |
CN112983404A (zh) * | 2021-03-26 | 2021-06-18 | 北京吉星恒大能源科技有限公司 | 一种双绝缘近钻头无线传输接收系统 |
CN113006709A (zh) * | 2021-04-15 | 2021-06-22 | 伟卓石油科技(北京)有限公司 | 电磁间隙接头及其安装方法 |
CN113250683A (zh) * | 2021-05-12 | 2021-08-13 | 华中科技大学 | 一种井下极低频通信模组的近场延长器 |
CN113863921A (zh) * | 2021-09-24 | 2021-12-31 | 中国电波传播研究所(中国电子科技集团公司第二十二研究所) | 一种近钻头无线短传驱动电路及其功率自调节方法 |
WO2022028420A1 (zh) * | 2020-08-03 | 2022-02-10 | 万晓跃 | 一种短半径定向钻井工具及方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110748337B (zh) * | 2018-07-05 | 2022-11-25 | 中国石油化工股份有限公司 | 一种连续油管随钻测量工具 |
US11396777B1 (en) * | 2021-02-08 | 2022-07-26 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Rotary steering drilling apparatus |
CN114033361A (zh) * | 2021-10-22 | 2022-02-11 | 中国石油大学(华东) | 一种近钻头多参数井下随钻测控系统 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060202852A1 (en) * | 2005-01-31 | 2006-09-14 | Baker Hughes Incorporated | Telemetry system with an insulating connector |
US20060220650A1 (en) * | 2004-01-29 | 2006-10-05 | John Lovell | Wellbore communication system |
US20070247329A1 (en) * | 2006-04-21 | 2007-10-25 | John Petrovic | System and Method for Downhole Telemetry |
CN201233961Y (zh) * | 2008-06-04 | 2009-05-06 | 中国石油集团钻井工程技术研究院 | 随钻绝缘偶极子无线发射天线 |
CN101525997A (zh) * | 2008-03-06 | 2009-09-09 | 中国石油化工股份有限公司 | 一种电磁随钻测量系统的井下信号发射装置及其发射方法 |
CN103061755A (zh) * | 2011-10-19 | 2013-04-24 | 中国石油化工股份有限公司 | 一种井下近钻头无线电磁波信号短距离传输系统及方法 |
CN203702140U (zh) * | 2013-11-08 | 2014-07-09 | 北京六合伟业科技股份有限公司 | 近钻头随钻测量通信系统 |
CN204283413U (zh) * | 2014-11-28 | 2015-04-22 | 北京六合伟业科技股份有限公司 | 近钻头随钻测斜仪 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6402524B2 (en) * | 1997-10-14 | 2002-06-11 | Tracto-Technik Paul Schimdt Spezialmaschinen | Data transfer system |
EP1305547B1 (en) | 2000-07-19 | 2009-04-01 | Novatek Engineering Inc. | Data transmission system for a string of downhole components |
US7096313B1 (en) | 2002-10-28 | 2006-08-22 | Sandisk Corporation | Tracking the least frequently erased blocks in non-volatile memory systems |
US7518528B2 (en) * | 2005-02-28 | 2009-04-14 | Scientific Drilling International, Inc. | Electric field communication for short range data transmission in a borehole |
CN1740746B (zh) | 2005-05-23 | 2010-08-04 | 清华大学 | 微小型动态载体姿态测量装置及其测量方法 |
CN2849164Y (zh) | 2005-11-14 | 2006-12-20 | 郑州士奇测控技术有限公司 | 随钻近钻头井斜角测量装置 |
US20090023502A1 (en) | 2007-07-18 | 2009-01-22 | Diamond Back - Quantum Drilling Motors, L.L.C. | Downhole shock absorber for torsional and axial loads |
CN201221354Y (zh) | 2008-06-11 | 2009-04-15 | 中国石油集团钻井工程技术研究院 | 一种近钻头地质导向探测系统 |
CN101289935B (zh) | 2008-06-11 | 2012-02-08 | 中国石油集团钻井工程技术研究院 | 一种近钻头地质导向探测系统 |
CN101493008A (zh) | 2009-02-17 | 2009-07-29 | 北京六合伟业科技有限公司 | 基于mems器件的捷联惯性导航陀螺测斜仪 |
US7762854B1 (en) | 2009-05-19 | 2010-07-27 | F Time Technology Industrial Co., Ltd. | RF connector assembly |
US9686021B2 (en) * | 2011-03-30 | 2017-06-20 | Schlumberger Technology Corporation | Wireless network discovery and path optimization algorithm and system |
CN202187758U (zh) | 2011-08-05 | 2012-04-11 | 北京六合伟业科技有限公司 | 一种旋挖钻机用测斜仪 |
CN102418516B (zh) | 2011-12-30 | 2014-12-17 | 中天启明石油技术有限公司 | 随钻近钻头定向参数测量装置 |
US9598951B2 (en) | 2013-05-08 | 2017-03-21 | Baker Hughes Incorporated | Coupled electronic and power supply frames for use with borehole conduit connections |
CN103577121B (zh) | 2013-11-05 | 2016-07-06 | 中船重工(武汉)凌久电子有限责任公司 | 一种基于Nand Flash的高可靠线性文件存取方法 |
CN204283400U (zh) | 2014-09-26 | 2015-04-22 | 长江大学 | 一种基于cmos开关的声波发射电路 |
CN105353357B (zh) | 2015-11-25 | 2019-01-29 | 中国石油集团钻井工程技术研究院 | 水平井随钻探层测距雷达单频调制脉冲信号源 |
CN105760113B (zh) | 2016-02-04 | 2019-03-22 | 西安科技大学 | 基于nand闪存的高速存储设备及文件管理方法 |
CN105804722A (zh) | 2016-03-10 | 2016-07-27 | 太原理工大学 | 一种矿用钻孔测斜仪探管的校正方法 |
CN206299372U (zh) | 2016-11-21 | 2017-07-04 | 中国科学院地质与地球物理研究所 | 一种随钻方位声波信号接收换能器封装装置 |
CN206299375U (zh) | 2016-11-21 | 2017-07-04 | 中国科学院地质与地球物理研究所 | 一种适用于随钻方位声波测井的接收装置 |
-
2016
- 2016-08-31 CN CN201610799298.6A patent/CN106223937B/zh not_active Expired - Fee Related
-
2017
- 2017-08-31 US US15/692,776 patent/US9970288B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060220650A1 (en) * | 2004-01-29 | 2006-10-05 | John Lovell | Wellbore communication system |
US20060202852A1 (en) * | 2005-01-31 | 2006-09-14 | Baker Hughes Incorporated | Telemetry system with an insulating connector |
US20070247329A1 (en) * | 2006-04-21 | 2007-10-25 | John Petrovic | System and Method for Downhole Telemetry |
CN101525997A (zh) * | 2008-03-06 | 2009-09-09 | 中国石油化工股份有限公司 | 一种电磁随钻测量系统的井下信号发射装置及其发射方法 |
CN201233961Y (zh) * | 2008-06-04 | 2009-05-06 | 中国石油集团钻井工程技术研究院 | 随钻绝缘偶极子无线发射天线 |
CN103061755A (zh) * | 2011-10-19 | 2013-04-24 | 中国石油化工股份有限公司 | 一种井下近钻头无线电磁波信号短距离传输系统及方法 |
CN203702140U (zh) * | 2013-11-08 | 2014-07-09 | 北京六合伟业科技股份有限公司 | 近钻头随钻测量通信系统 |
CN204283413U (zh) * | 2014-11-28 | 2015-04-22 | 北京六合伟业科技股份有限公司 | 近钻头随钻测斜仪 |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107558993B (zh) * | 2017-09-08 | 2018-06-22 | 中国科学院地质与地球物理研究所 | 一体化随钻声波接收换能器封装装置 |
US10379238B2 (en) | 2017-09-08 | 2019-08-13 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Integral packaging device for acoustic receiving transducers while drilling |
CN107558993A (zh) * | 2017-09-08 | 2018-01-09 | 中国科学院地质与地球物理研究所 | 一体化随钻声波接收换能器封装装置 |
CN108843242A (zh) * | 2018-07-09 | 2018-11-20 | 西安石大斯泰瑞油田技术有限公司 | 一种低成本高造斜率和高机械钻速的旋转导向钻井系统 |
CN108843242B (zh) * | 2018-07-09 | 2023-06-09 | 西安石大斯泰瑞油田技术有限公司 | 一种低成本高造斜率和高机械钻速的旋转导向钻井系统 |
CN111236929A (zh) * | 2019-12-22 | 2020-06-05 | 中国电波传播研究所(中国电子科技集团公司第二十二研究所) | 一种易于加工实现的随钻电磁波电阻率仪 |
WO2022028420A1 (zh) * | 2020-08-03 | 2022-02-10 | 万晓跃 | 一种短半径定向钻井工具及方法 |
CN112160745A (zh) * | 2020-09-29 | 2021-01-01 | 北京六合伟业科技股份有限公司 | 一种适用于金刚石岩心钻探emwd电磁波测量系统 |
CN112983404A (zh) * | 2021-03-26 | 2021-06-18 | 北京吉星恒大能源科技有限公司 | 一种双绝缘近钻头无线传输接收系统 |
CN112983404B (zh) * | 2021-03-26 | 2024-04-02 | 北京吉星恒大能源科技有限公司 | 一种双绝缘近钻头无线传输接收系统 |
CN113006709A (zh) * | 2021-04-15 | 2021-06-22 | 伟卓石油科技(北京)有限公司 | 电磁间隙接头及其安装方法 |
CN113250683A (zh) * | 2021-05-12 | 2021-08-13 | 华中科技大学 | 一种井下极低频通信模组的近场延长器 |
CN113863921A (zh) * | 2021-09-24 | 2021-12-31 | 中国电波传播研究所(中国电子科技集团公司第二十二研究所) | 一种近钻头无线短传驱动电路及其功率自调节方法 |
Also Published As
Publication number | Publication date |
---|---|
US20180058200A1 (en) | 2018-03-01 |
US9970288B2 (en) | 2018-05-15 |
CN106223937B (zh) | 2017-09-29 |
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