Formation test data transmission method, electronic device, and computer-readable storage medium

A data transmission method and formation testing technology, applied in the direction of digital transmission system, transmission system, measurement, etc., can solve the problem of inability to accurately adjust the transmission code rate, etc., to improve efficiency and reliability, reduce redundancy, improve The effect of data transfer performance

Active Publication Date: 2021-02-05
ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, neither the existing error correction code transmission strategy nor the cyclic retransmission transmission strategy can flexibly and accurately adjust the transmission code rate to achieve efficient and reliable transmission of logging data in closed-loop channels

Method used

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  • Formation test data transmission method, electronic device, and computer-readable storage medium
  • Formation test data transmission method, electronic device, and computer-readable storage medium
  • Formation test data transmission method, electronic device, and computer-readable storage medium

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solutions claimed in this application can also be realized.

[0029] The first embodiment of the present invention relates to a formation test data transmission method. The core of this embodiment is that the downhole encoding sending end collects D well logging data detected by downhole sensors and D bytes altogether, and divides the well logging data of D bytes int...

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Abstract

The embodiment of the invention relates to the field of stratum testing, and discloses a stratum testing data transmission method, electronic equipment, and a computer-readable storage medium. In the present invention, the fountain code encoding method is used to enable the ground decoding receiver to correctly receive the logging data with as high a probability as possible while reducing the redundancy of the transmission data, and the limited transmission capacity of the downlink channel is used to greatly improve the wireless electromagnetic wave logging Data transmission timeliness and reliability. When determining the new feedback to adjust the transmission parameters, a two-level parameter adjustment strategy combining coarse adjustment and fine adjustment is adopted. The coarse adjustment link roughly determines the code word length range of the encoded code word to be transmitted according to the measured formation resistivity ; The fine-tuning link calculates specific transmission parameters according to the state detected by the word error rate of the upload channel, that is, the length of the encoded codeword after encoding. The two-level adjustment strategy improves the speed of determining the feedback parameters and improves the performance of data transmission.

Description

technical field [0001] Embodiments of the present invention relate to the field of formation testing, in particular to a method for transmitting formation testing data, electronic equipment, and a computer-readable storage medium. Background technique [0002] Formation testing is to conduct on-off well tests on oil and gas layers during drilling or after well completion to obtain various parameters and fluid properties of formations under dynamic conditions, so as to make qualitative or quantitative evaluations of formations. The two-way transmission system of formation test data is mainly to send the downhole data to the ground control station in real time during the test process, so as to solve the problem of real-time monitoring of the underground construction process and real feedback of the bottom hole situation, so that the accuracy and effectiveness of on-site operation decision-making are greatly guaranteed. , and send a small amount of control instructions to downh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/20E21B49/00E21B47/12
CPCE21B49/00H04L1/0057H04L1/0061H04L1/203
Inventor 谢玉洪孟文波刘振江钟其水王尔钧李辉赵启彬郭永宾李中颜帮川张崇董钊任冠龙余意江中超
Owner ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
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