Electromagnetic wave transmission method of logging tool information

Abstract

The invention provides an electromagnetic wave transmission method of information of logging instruments, wherein electromagnetic waves are used for transmitting logging data wirelessly; a wireless transmitting / receiving device connected with an information acquisition device of each logging instrument is arranged at the underground logging instrument; data acquired by the underground information acquisition devices is transmitted to the ground by the wireless transmitting / receiving devices; after being received by a ground instrument on the ground, the data is decoded and reduced into various types of dynamic data; the data materials are transmitted to a data processing terminal to be analyzed and displayed; all the underground logging instruments contact one another through wireless communication, and each underground logging instrument is provided with a wireless transmitting / receiving device for mutually communicating with other instruments and communicating with the ground instrument; and an independent power supply system and a sensor data acquisition system are arranged at each underground logging instrument. The method not only ensures the independency of all instruments, but also better solves the mutual communication problem of the instruments and realizes integral communication of the instruments; moreover, each instrument is provided with an independent power supply system, thereby avoiding the situation that the operation of other instruments is affected when on instrument has a fault.

Description

technical field [0001] The invention relates to the technical field of well logging, in particular to an electromagnetic wave transmission method for well logging instrument information. Background technique [0002] In recent years, as the objects of oil and gas exploration and development have become more and more complex and the difficulty of exploration and development has become more and more difficult, some subtle and complex oil and gas reservoirs have become the focus of exploration and development. In the overseas petroleum engineering technical service market, it is difficult to participate in offshore technical service bidding without LWD capability. In the face of complex exploration objects, it is necessary to effectively identify oil and gas layers in the reservoir. It is no longer possible to use traditional conventional logging techniques and methods with low resolution, poor intuition, and interpretation of multi-solutions in oil and gas layers. To meet the...

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Problems solved by technology

[0007] The purpose of the present invention is to propose an electromagnetic wave transmission method for well logging instrument information, which solves the problems that the various instruments in the well logging instrument string cannot communicate with each other, resulting in relatively scattered communication between ground software and downhole instruments, and laborious installation, movement, and maintenance. , and due to the unified power supply of the existing instrument strings, some instruments consume a lot of power. Once a problem occurs in one of the instruments, it will affect the operation of other instruments

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