Networked well logging system and communication method thereof

A network system and well logging technology, which is applied in the networked well logging system and its communication field, can solve the problems of low bus structure flow, hindrance of logging data analysis, and limitation of downhole instrument data transmission, etc.

Inactive Publication Date: 2012-12-05
CNPC GREATWALL DRILLING ENG
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Problems solved by technology

The traffic of these bus structures is small, which limits the data transmission of downhole tools, so that a large amount of original data has to be discarded, which poses a great obstacle to the post-event analysis of logging data

Method used

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  • Networked well logging system and communication method thereof
  • Networked well logging system and communication method thereof
  • Networked well logging system and communication method thereof

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Embodiment Construction

[0046] The logging system of the invention is a modular and open platform based on modern network communication technology. Due to the particularity of the well logging system, the present invention designs a unique network topology that meets the needs of well logging. figure 2 A network topology diagram of a logging system according to an embodiment of the present invention is shown. Such as figure 2As shown, the logging system according to this embodiment includes three parts: a surface system 1 , a downhole system 2 and a remote transmission system 3 . In the present invention, the logging system is networked by using the Ethernet technology. Among them, the various devices of the surface system are connected to each other to form the first Ethernet network system, and at the same time, the various instruments of the downhole system 2 are connected to each other to form the second Ethernet network system, which is also Ethernet, and the remote transmission system 3 is ...

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Abstract

The invention relates to a networked well logging system. The networked well logging system according to one embodiment of the invention comprises a well logging ground system, a well logging underground system and a telemetry system, wherein devices for forming the well logging ground system are connected to form a first Ethernet network system; devices for forming the well logging underground system are connected to form a second Ethernet network system; and the telemetry system is used for connecting the first network system and the second network system to ensure that the first network system can be communicated with the second network system. The well logging system disclosed by the invention achieves networking of an underground instrument bus and the whole well logging system and high unification of instrument software, hardware and communication system modularization.

Description

technical field [0001] The present invention relates to a well logging system and its communication method, in particular to a networked well logging system based on Ethernet technology and its communication method. Background technique [0002] Well logging, also known as geophysical well logging or petroleum well logging, is a technique for measuring geophysical parameters using the electrochemical properties, electrical conductivity, acoustic properties, radioactivity and other geophysical properties of rock formations. It belongs to applied geophysical methods (including gravity, magnetic , electricity, seismic, logging). Generally, it can be divided into electrical logging, sonic logging, radioactive logging, formation dip logging, gas logging, formation testing logging, gas drilling logging, etc. according to the detected rock physical properties or detection purposes. All kinds of well logging instruments manufactured by using electric, magnetic, acoustic, thermal, n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/40E21B47/00
Inventor 陈文轩裴彬彬岳宏图赵帅肖加奇孙云涛陈仕学陈文戴光明姚德忠汪新国张年英
Owner CNPC GREATWALL DRILLING ENG
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