CN112612063A - Split type resistivity measurement system - Google Patents
Split type resistivity measurement system Download PDFInfo
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- CN112612063A CN112612063A CN202011488089.2A CN202011488089A CN112612063A CN 112612063 A CN112612063 A CN 112612063A CN 202011488089 A CN202011488089 A CN 202011488089A CN 112612063 A CN112612063 A CN 112612063A
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- drill collar
- pup joint
- measurement system
- resistivity measurement
- resistivity
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- 238000005259 measurement Methods 0.000 title claims abstract description 29
- 230000008054 signal transmission Effects 0.000 claims abstract description 6
- 210000002445 nipple Anatomy 0.000 claims description 31
- 238000005553 drilling Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- 238000005290 field theory Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 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
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- 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
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
-
- 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
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices 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
- G01V3/26—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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Electromagnetism (AREA)
- Mining & Mineral Resources (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
本发明公开了一种分体式电阻率测量系统，由机芯和钻铤两部分组成；机芯包括发射短节、上悬挂器、接收短节、下悬挂器、电池短节五个部分，钻铤包括电阻率钻铤本体和调整钻铤两个部分；本发明结构设计新颖，采用机芯和钻铤连接通信的方式，基于完备电磁场理论，采用高、低两种工作频率。利用测量仪器穿过不同电阻率地层时，改变接收线圈的幅度和相位差，再转换得到地层的电阻率信息。由机芯的发射短节和接收短节发出信号，使用同轴连接器进行信号传输，通过钻铤上的天线采集信息，并将数据反馈给机芯短节，独立的电池短节对仪器进行供电，更换非常方便。因此本发明具有结构简单，工作可靠，通用性强，使用成本低等优点。
The invention discloses a split-type resistivity measurement system, which is composed of a core and a drill collar; the core includes five parts: a launching subsection, an upper hanger, a receiving subsection, a lower hanger, and a battery subsection. The collar includes two parts: the resistivity drill collar body and the adjustment drill collar; the invention has novel structure design, adopts the mode of connection and communication between the movement and the drill collar, and adopts two working frequencies of high and low based on the complete electromagnetic field theory. When the measuring instrument is used to pass through the formation with different resistivity, the amplitude and phase difference of the receiving coil are changed, and then the resistivity information of the formation is obtained by conversion. Signals are sent from the transmitter section and the receiver section of the movement, and the coaxial connector is used for signal transmission. The information is collected through the antenna on the drill collar, and the data is fed back to the movement section. The independent battery section carries out the instrument. Power supply, replacement is very convenient. Therefore, the invention has the advantages of simple structure, reliable operation, strong versatility and low use cost.
Description
Technical Field
The invention relates to the technical field of resistivity measurement systems, in particular to a split type resistivity measurement system.
Background
Currently, oilfield block development has reached a mid-to-late stage, and geosteering instruments have become quite important in order to develop thin oil reservoirs as well as residual oil.
Resistivity measurement while drilling is one of the cores of logging while drilling technology and is a key technology for evaluating hydrocarbon reservoirs in time. Logging While Drilling (LWD) is a measurement while drilling system with more complete functions and more complex structure developed on the basis of Measurement While Drilling (MWD), and mainly comprises measuring short joints such as resistivity, neutrons, density and sound waves and the like added on the basis of conventional MWD so as to obtain logging information. LWD transmits more information than MWD. At present, almost all open hole logging operations in overseas offshore oil fields and large deviated directional wells on land adopt a logging-while-drilling technology.
Resistivity is the main mode for measuring geological parameters, so that the resistivity is simple in structure, convenient to maintain, economical and durable, and is the main development direction of the resistivity.
Disclosure of Invention
The present invention is directed to a split resistivity measurement system to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a split type resistivity measurement system, resistivity measurement system comprises core and drill collar two parts, core and drill collar pass through coaxial connector communication, the core includes five parts of transmission nipple joint, last hanger, receipt nipple joint, lower hanger, battery nipple joint, through connector connection communication between transmission nipple joint and the receipt nipple joint, through connector connection communication between battery nipple joint and transmission nipple joint, the receipt nipple joint, each nipple joint has independent sealing system.
Preferably, the split type resistivity measurement system that this application provided, wherein, the drill collar includes drill collar body and two parts of adjustment drill collar, eight suspension holes and last hanger, lower hanger sealing connection have on the drill collar body, communicate through coaxial connector between drill collar body and the adjustment drill collar.
Preferably, the application provides a split type resistivity measurement system, wherein, the battery nipple is installed to adjustment drill collar internally.
Preferably, the present application provides a split resistivity measurement system, wherein the using method thereof includes the following steps:
A. when the instrument works normally at the bottom of the well, the transmitting short section and the receiving short section of the machine core send signals;
B. the coaxial connector is used for signal transmission, information is collected through an antenna on the drill collar body, and data are fed back to the short section of the movement;
C. the battery nipple supplies power to the movement and the drill collar; adjusting the drill collar to be used for connecting data uploaded by an MWD instrument;
D. when the device is applied, the required data are acquired in a storage mode, the instrument is read and analyzed after going out of a well, the acquired data can be uploaded in real time by matching with an MWD wireless measurement while drilling system, and the ground system obtains measurement while drilling and well logging data according to the detected decoded data.
Compared with the prior art, the invention has the beneficial effects that: the invention has simple structure, reliable work and good core universality, is suitable for resistivity measurement systems with various specifications and models, is convenient to maintain and can effectively reduce the engineering cost; the mode of connecting and communicating the machine core and the drill collar is adopted, and based on a complete electromagnetic field theory, high and low working frequencies are adopted. When the measuring instrument penetrates through the stratum with different resistivities, the amplitude and the phase difference of the receiving coil are changed, and then the resistivity information of the stratum is obtained through conversion. The transmitting nipple and the receiving nipple of the machine core send signals, the coaxial connector is used for signal transmission, information is collected through an antenna on the drill collar, data are fed back to the nipple of the machine core, the independent battery nipple supplies power to the instrument, and the replacement is very convenient. Therefore, the invention has the advantages of simple structure, reliable work, strong universality, low use cost and the like.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: the device comprises a transmitting pup joint 1, an upper hanger 2, a receiving pup joint 3, a lower hanger 4, a drill collar body 5, a battery pup joint 6 and an adjusting drill collar 7.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a split type resistivity measurement system, resistivity measurement system comprises core and drill collar two parts, the core passes through coaxial connector communication with the drill collar, the core includes five parts of transmission nipple joint 1, upper hanger 2, receipt nipple joint 3, lower hanger 4, battery nipple joint 6, connect communication through the connector between transmission nipple joint 1 and the receipt nipple joint 3, connect communication through the connector between battery nipple joint 6 and transmission nipple joint 1, the receipt nipple joint 3, each nipple joint has independent sealing system.
The drill collar comprises a drill collar body 5 and an adjusting drill collar 7, eight suspension holes are formed in the drill collar body 5 and are connected with the upper suspension device 2 and the lower suspension device 4 in a sealing mode, the drill collar body 5 and the adjusting drill collar 7 are communicated through coaxial connectors, and a battery nipple 6 is installed inside the adjusting drill collar 7.
The working principle is as follows: the using method of the invention comprises the following steps:
A. when the instrument works normally at the bottom of the well, the transmitting short section and the receiving short section of the machine core send signals;
B. the coaxial connector is used for signal transmission, information is collected through an antenna on the drill collar body, and data are fed back to the short section of the movement;
C. the battery nipple supplies power to the movement and the drill collar; adjusting the drill collar to be used for connecting data uploaded by an MWD instrument;
D. when the device is applied, the required data are acquired in a storage mode, the instrument is read and analyzed after going out of a well, the acquired data can be uploaded in real time by matching with an MWD wireless measurement while drilling system, and the ground system obtains measurement while drilling and well logging data according to the detected decoded data.
In conclusion, the invention has simple structure, reliable work and good core universality, is suitable for resistivity measurement systems with various specifications and models, is convenient to maintain and can effectively reduce the engineering cost; the mode of connecting and communicating the machine core and the drill collar is adopted, and based on a complete electromagnetic field theory, high and low working frequencies are adopted. When the measuring instrument penetrates through the stratum with different resistivities, the amplitude and the phase difference of the receiving coil are changed, and then the resistivity information of the stratum is obtained through conversion. The transmitting nipple and the receiving nipple of the machine core send signals, the coaxial connector is used for signal transmission, information is collected through an antenna on the drill collar, data are fed back to the nipple of the machine core, the independent battery nipple supplies power to the instrument, and the replacement is very convenient. Therefore, the invention has the advantages of simple structure, reliable work, strong universality, low use cost and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a split type resistivity measurement system, resistivity measurement system comprises core and drill collar two parts, its characterized in that: the core and the drill collar communicate through a coaxial connector, the core comprises five parts, namely a transmitting pup joint (1), an upper hanger (2), a receiving pup joint (3), a lower hanger (4) and a battery pup joint (6), the transmitting pup joint (1) and the receiving pup joint (3) are connected and communicated through the connector, the battery pup joint (6) is connected and communicated with the transmitting pup joint (1) and the receiving pup joint (3) through the connector, and each pup joint is provided with an independent sealing system.
2. The split resistivity measurement system of claim 1, wherein: the drill collar comprises a drill collar body (5) and an adjusting drill collar (7), eight suspension holes are formed in the drill collar body (5) and are connected with an upper hanger (2) and a lower hanger (4) in a sealing mode, and the drill collar body (5) and the adjusting drill collar (7) are communicated through coaxial connectors.
3. The split resistivity measurement system of claim 2, wherein: and a battery pup joint (6) is arranged inside the adjusting drill collar (7).
4. The use method of the split resistivity measurement system of claim 1 is realized, and is characterized in that: the using method comprises the following steps:
A. when the instrument works normally at the bottom of the well, the transmitting short section and the receiving short section of the machine core send signals;
B. the coaxial connector is used for signal transmission, information is collected through an antenna on the drill collar body, and data are fed back to the short section of the movement;
C. the battery nipple supplies power to the movement and the drill collar; adjusting the drill collar to be used for connecting data uploaded by an MWD instrument;
D. when the device is applied, the required data are acquired in a storage mode, the instrument is read and analyzed after going out of a well, the acquired data can be uploaded in real time by matching with an MWD wireless measurement while drilling system, and the ground system obtains measurement while drilling and well logging data according to the detected decoded data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011488089.2A CN112612063A (en) | 2020-12-16 | 2020-12-16 | Split type resistivity measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011488089.2A CN112612063A (en) | 2020-12-16 | 2020-12-16 | Split type resistivity measurement system |
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| Publication Number | Publication Date |
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| CN112612063A true CN112612063A (en) | 2021-04-06 |
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| CN202011488089.2A Pending CN112612063A (en) | 2020-12-16 | 2020-12-16 | Split type resistivity measurement system |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5892460A (en) * | 1997-03-06 | 1999-04-06 | Halliburton Energy Services, Inc. | Logging while drilling tool with azimuthal sensistivity |
| CN1657743A (en) * | 2004-02-16 | 2005-08-24 | 中国石油勘探开发研究院钻井工艺研究所 | Method and device for measuring resistivity by device near bit |
| CN201173114Y (en) * | 2008-02-20 | 2008-12-31 | 北京六合伟业科技有限公司 | Wireless directional tool adopting optical communication |
| CN102943662A (en) * | 2012-11-12 | 2013-02-27 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Salvageable wireless while-drilling electromagnetic wave resistivity measuring nipple |
| CN103061755A (en) * | 2011-10-19 | 2013-04-24 | 中国石油化工股份有限公司 | Short distance transmission system for wireless electromagnetic wave signals of downhole near bit and short distance transmission method |
| CN203729985U (en) * | 2013-11-26 | 2014-07-23 | 成都西油联合石油天然气工程技术有限公司 | Underground measurement while drilling assembly |
| CN205895227U (en) * | 2016-06-29 | 2017-01-18 | 奥瑞拓能源科技股份有限公司 | Along with stratum resistivity survey nipple joint and drilling rod under well drilling |
| CN108019207A (en) * | 2017-12-15 | 2018-05-11 | 北京六合伟业科技股份有限公司 | A kind of measuring method of SYMMETRIC ELECTROMAGNETIC ripple resistivity |
| US20180142546A1 (en) * | 2016-11-21 | 2018-05-24 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Receiving apparatus suitable for azimuthally acoustic logging while drilling |
| CN110273677A (en) * | 2019-07-18 | 2019-09-24 | 北京六合伟业科技股份有限公司 | A kind of short radius directional tool |
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-
2020
- 2020-12-16 CN CN202011488089.2A patent/CN112612063A/en active Pending
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| CN201173114Y (en) * | 2008-02-20 | 2008-12-31 | 北京六合伟业科技有限公司 | Wireless directional tool adopting optical communication |
| CN103061755A (en) * | 2011-10-19 | 2013-04-24 | 中国石油化工股份有限公司 | Short distance transmission system for wireless electromagnetic wave signals of downhole near bit and short distance transmission method |
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Effective date of registration: 20220805 Address after: Building 39, District 12, No. 188, South Fourth Ring West Road, Fengtai District, Beijing 100071 (Park) Applicant after: BEIJING LIUHE GREATNESS TECHNOLOGY Co.,Ltd. Address before: No. 199, Huqiao Road, East Industrial District, Xindu District, Chengdu, Sichuan 610500 Applicant before: Chengdu Dobe Petroleum Engineering Technology Co.,Ltd. |
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Application publication date: 20210406 |