US20230279773A1 - Downhole-to-ground logging communication and control apparatus and method - Google Patents

Downhole-to-ground logging communication and control apparatus and method Download PDF

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Publication number
US20230279773A1
US20230279773A1 US18/040,753 US202118040753A US2023279773A1 US 20230279773 A1 US20230279773 A1 US 20230279773A1 US 202118040753 A US202118040753 A US 202118040753A US 2023279773 A1 US2023279773 A1 US 2023279773A1
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downhole
signal
ground
electromagnetic wave
receiving apparatus
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Zhe Sun
Zedong FENG
Yu He
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Guoyi Petroleum Technology Wuxi Co Ltd
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Guoyi Petroleum Technology Wuxi Co Ltd
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Assigned to GUOYI PETROLEUM TECHNOLOGY (WUXI) CO., LTD reassignment GUOYI PETROLEUM TECHNOLOGY (WUXI) CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, Zedong, HE, YU, SUN, Zhe
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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
    • 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

Definitions

  • the disclosure relates to the field of quantum logging technologies, and is particularly to a downhole-to-ground logging communication and control apparatus and the disclosure further provides a downhole-to-ground logging communication and control method.
  • downhole-to-ground communication is realized through electromagnetic signal transmission, and a ground portion of the downhole-to-ground communication is also an electromagnetic antenna.
  • the sensitivity and accuracy of the EM-MWD are poor, so the transmission depth of the EM-MWD is limited, which typically cannot exceed 3,000 m even if one segment of signal relay is added in the middle.
  • the disclosure provides a downhole-to-ground logging communication and control apparatus, which has the characteristics of high detection sensitivity, wide operation temperature range, low operation energy consumption, small occupied volume, large channel width, high transmission rate and low cost, and has obvious advantages in terms of wireless transmission of downhole-to-ground data communication.
  • a downhole-to-ground quantum logging communication and control apparatus comprises a ground portion and a downhole portion, wherein the ground portion is provided with an atomic magnetometer receiving apparatus and a quantum detection device from which quantum data is read, the downhole portion comprises an electromagnetic wave transmission system, and the electromagnetic wave transmission system is configured for encoding a signal detected from a downhole and transmitting the signal through an electromagnetic wave.
  • the atomic magnetometer receiving apparatus and the quantum detection device from which the quantum data is read are connected through a cable, thus ensuring accuracy and reliability of final decoding of data.
  • the atomic magnetometer receiving apparatus is a high-sensitivity 87 Rb atomic magnetometer or a diamond quantum magnetometer, a transmission channel of the atomic magnetometer receiving apparatus covers 0 Hz to 100 Hz, a detectable magnetic field intensity is as low as a magnitude of 10 ⁇ 12 T, and a background noise is as low as 1 PT/Hz 1/2 , with ultra-high sensitivity and detection signal-to-noise ratio.
  • the electromagnetic wave transmission system is capable of achieving stable signal transmission and detection effects by signal transmission with lower transmission power, thus reducing overall energy consumption of a downhole instrument system;
  • the downhole-to-ground logging communication and control apparatus further comprises a downhole electromagnetic signal repeater, wherein when a linear distance between the electromagnetic wave transmission system and the atomic magnetometer receiving apparatus is greater than 4 km, the downhole portion is provided with the downhole electromagnetic signal repeater, and a signal transmitted by the electromagnetic wave transmission system is amplified by the electromagnetic signal repeater and then the amplified signal is transmitted to the atomic magnetometer receiving apparatus, so that the atomic magnetometer receiving apparatus receives an effective signal, and transmission distance and depth of the whole apparatus are expanded.
  • a downhole electromagnetic signal repeater wherein when a linear distance between the electromagnetic wave transmission system and the atomic magnetometer receiving apparatus is greater than 4 km, the downhole portion is provided with the downhole electromagnetic signal repeater, and a signal transmitted by the electromagnetic wave transmission system is amplified by the electromagnetic signal repeater and then the amplified signal is transmitted to the atomic magnetometer receiving apparatus, so that the atomic magnetometer receiving apparatus receives an effective signal, and transmission distance and depth of the whole apparatus are expanded.
  • a downhole-to-ground logging communication and control method comprising:
  • high-sensitivity detection and receiving are performed on a low-frequency electromagnetic signal through an atomic magnetometer receiving apparatus, with extremely high signal-to-noise ratio and detection sensitivity, thus being suitable for a downhole-to-ground communication field in detection while drilling.
  • An encoding mode of the electromagnetic wave transmission system is set according to requirements, and a transmission frequency of the electromagnetic wave transmission system is within a range of 1 Hz to 100 Hz.
  • the downhole-to-ground quantum logging communication apparatus and method high-sensitivity detection and receiving are performed on the low-frequency electromagnetic signal through the atomic magnetometer, with extremely high signal-to-noise ratio and detection sensitivity, thus having the advantages of higher transmission rate, better stability, greater transmission distance and depth compared with traditional mud pulse and electromagnetic transmission; and the apparatus has the characteristics of high detection sensitivity, wide operation temperature range, low operation energy consumption, small occupied volume, large channel width, high transmission rate and low cost, and has obvious advantages in terms of wireless transmission of downhole-to-ground data communication.
  • FIG. 2 is a flow chart of corresponding data transmission of a method.
  • 10 refers to ground portion
  • 20 refers to downhole portion
  • 1 refers to atomic magnetometer receiving apparatus
  • 2 refers to quantum detection device
  • 3 refers to electromagnetic wave transmission system
  • 4 refers to downhole electromagnetic signal repeater.
  • a ground-to-downhole quantum logging communication and control apparatus as shown in FIG. 1 , comprises a ground portion 10 and a downhole portion 20 .
  • the ground portion 10 is provided with an atomic magnetometer receiving apparatus 1 and a quantum detection device 2 from which quantum data is read
  • the downhole portion 20 comprises an electromagnetic wave transmission system 3
  • the electromagnetic wave transmission system 3 is configured for encoding a signal detected from a downhole and transmitting the signal through an electromagnetic wave.
  • the atomic magnetometer receiving apparatus 1 and the quantum detection device 2 from which the quantum data is read are connected through a cable, thus ensuring accuracy and reliability of final decoding of data.
  • the electromagnetic wave transmission system 3 is capable of achieving stable signal transmission and detection effects by signal transmission with lower transmission power, thus reducing overall energy consumption of a downhole instrument system.
  • the apparatus further comprises a downhole electromagnetic signal repeater 4 .
  • a linear distance between the electromagnetic wave transmission system 3 and the atomic magnetometer receiving apparatus 1 is greater than 4 km
  • the downhole portion is provided with the downhole electromagnetic signal repeater 4 , and a signal transmitted by the electromagnetic wave transmission system 3 is amplified by the electromagnetic signal repeater 4 and then the amplified signal is transmitted to the atomic magnetometer receiving apparatus 1 , so that the atomic magnetometer receiving apparatus 1 receives an effective signal, and transmission distance and depth of the whole apparatus are expanded.
  • the distance may be expanded to more than 5 km.
  • a downhole-to-ground logging communication and control method is provided.
  • a downhole electromagnetic wave transmission system encodes and modulates information to be transmitted and transmits the information according to a frequency
  • an electromagnetic wave signal is radiated from a borehole to the ground through a stratum
  • an atomic magnetometer located on the ground detects the electromagnetic wave signal, and records and decodes the electromagnetic wave signal through a corresponding receiving apparatus, thus realizing a downhole-to-ground communication function.
  • high-sensitivity detection and receiving are performed on a low-frequency electromagnetic signal through the atomic magnetometer receiving apparatus, with extremely high signal-to-noise ratio and detection sensitivity, thus being suitable for a downhole-to-ground communication field in detection while drilling.
  • An encoding mode of the electromagnetic wave transmission system is set according to requirements, and a transmission frequency of the electromagnetic wave transmission system is generally within a range of 1 Hz to 100 Hz.
  • a working principle of the disclosure is described as follows.
  • high-sensitivity detection and receiving are performed on the low-frequency electromagnetic signal through the atomic magnetometer, with extremely high signal-to-noise ratio and detection sensitivity, thus having the advantages of higher transmission rate, better stability, greater transmission distance and depth compared with traditional mud pulse and electromagnetic transmission.
  • the apparatus has the characteristics of high detection sensitivity, wide operation temperature range, low operation energy consumption, small occupied volume, large channel width, high transmission rate and low cost, and has obvious advantages in terms of wireless transmission of downhole-to-ground data communication.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Near-Field Transmission Systems (AREA)
US18/040,753 2021-04-16 2021-07-26 Downhole-to-ground logging communication and control apparatus and method Pending US20230279773A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202110411350.7 2021-04-16
CN202110411350.7A CN113073974A (zh) 2021-04-16 2021-04-16 一种井下至地面的测井通信和控制装置及方法
PCT/CN2021/108395 WO2022217779A1 (zh) 2021-04-16 2021-07-26 一种井下至地面的测井通信和控制装置及方法

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US (1) US20230279773A1 (zh)
CN (1) CN113073974A (zh)
DE (1) DE212021000400U1 (zh)
WO (1) WO2022217779A1 (zh)

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CN113073974A (zh) * 2021-04-16 2021-07-06 国仪石油技术(无锡)有限公司 一种井下至地面的测井通信和控制装置及方法
CN113216942A (zh) * 2021-04-16 2021-08-06 国仪石油技术(无锡)有限公司 一种地面至井下量子测井通信和控制装置及方法
CN117538346A (zh) * 2024-01-08 2024-02-09 四川阳光墨新科技有限公司 基于量子探测技术的混凝土结构裂缝探测方法

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CN101441253A (zh) * 2008-12-02 2009-05-27 浙江大学 高灵敏度原子磁力仪
US20100225313A1 (en) * 2009-03-03 2010-09-09 Baker Hughes Incorporated Atomic magnetometers for use in the oil service industry
KR101206727B1 (ko) * 2011-01-03 2012-11-30 한국표준과학연구원 저자기장 핵자기공명 장치 및 저자기장 핵자기공명 방법
CN102331588B (zh) * 2011-08-03 2014-08-06 中国石油大学(北京) 核磁共振测井仪的探头磁体、探头和核磁共振测井仪
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WO2022217779A1 (zh) 2022-10-20
DE212021000400U1 (de) 2023-02-27

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