While-drilling imaging data processing and transmission method and apparatus

A technology of imaging data and transmission device, which is applied in image data processing, image coding, graphics and image conversion, etc., can solve problems such as difficulty in adapting to a large number of imaging data processing and transmission

Inactive Publication Date: 2018-02-16
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

Faced with the processing and transmission requirements of a large amount of imaging data while drilling, these existing technologies are difficult to adapt to the processing and transmission of large amounts of imaging data

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  • While-drilling imaging data processing and transmission method and apparatus
  • While-drilling imaging data processing and transmission method and apparatus
  • While-drilling imaging data processing and transmission method and apparatus

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Embodiment Construction

[0042] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the implementation process of how to apply technical means to solve technical problems and achieve corresponding technical effects in the present invention. The embodiments of the present application and the various features in the embodiments can be combined with each other under the premise of no conflict, and the formed technical solutions are all within the protection scope of the present invention.

[0043] Existing data processing and transmission technologies while drilling are far from enough for massive data processing such as resistivity imaging and gamma imaging. These technologies are mostly aimed at conventional measurement data of resistivity, gamma, neutron density, etc., and rarely take into account the characteristics of imaging data such as resistivity imaging and gamma imaging,...

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Abstract

The invention discloses a while-drilling imaging data processing and transmission method and apparatus. The apparatus comprises a while-drilling imaging data measurement unit which rotates for a cyclealong a drill rod and measures a set quantity of while-drilling imaging data, an imaging data processing and compression unit which performs matrix conversion on the set quantity of the while-drilling imaging data, reserves image change information of a matrix setting position after conversion and discards other values, and a mud pulse device which sends processed matrix information to the groundsurface in a mud pulse way. According to the while-drilling imaging data processing and transmission method and apparatus, key features of data of while-drilling resistivity imaging, gamma imaging and the like can be effectively extracted and transmitted to the ground surface.

Description

technical field [0001] The invention relates to the field of oil and gas development and exploration, and is particularly used for data processing and transmission of measurement-while-drilling or logging imaging data. Background technique [0002] Measurement while drilling or well logging has developed from the measurement of well deviation, azimuth, and tool face to the measurement of conventional resistivity, gamma, neutron density, etc., and is currently developing into resistivity imaging and gamma imaging. With the continuous enrichment of measurement data while drilling, how to transmit the signal from the bottom of the well to the surface is a key link of LWD technology, and it is also one of the "bottlenecks" restricting the development of LWD technology. In the prior art, mud pulse transmission and low-frequency electromagnetic transmission are relatively feasible transmission methods for engineering applications. Although the continuous efforts of scientific rese...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T9/00G06T3/00
CPCG06T3/00G06T9/007
Inventor 倪卫宁曾义金李新李三国米金泰尹承稷
Owner CHINA PETROLEUM & CHEM CORP
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