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Remotely updating device of EDIB (Electronic Data Interchange Bus) based down-hole program

A program update and program technology, applied in program control devices, program loading/starting, wellbore/well components, etc., can solve problems such as low efficiency and failure to meet the actual requirements of the logging process, and achieve the effect of improving logging efficiency

Inactive Publication Date: 2012-11-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This process is inefficient and cannot meet the actual requirements of the logging process

Method used

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  • Remotely updating device of EDIB (Electronic Data Interchange Bus) based down-hole program
  • Remotely updating device of EDIB (Electronic Data Interchange Bus) based down-hole program
  • Remotely updating device of EDIB (Electronic Data Interchange Bus) based down-hole program

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Experimental program
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Embodiment

[0021] figure 1 It is the principle block diagram of the downhole program remote update device based on the EDIB bus of the present invention

[0022] Such as figure 1 As shown, the surface logging system includes a program processing module 1 and a data sending module 2 . The update program is compiled by the CCS software to generate the .out target file, which is sent to the program processing module 1 in the surface logging system as input. The program processing module 1 parses the .out target file into BootLoader data stream, then converts it into hexadecimal data, and encapsulates it according to the downhole instrument control protocol data format. The data sending module 2 performs Manchester encoding on the packaged hexadecimal data, and the output differential signal after encoding is driven by a linear driver chip and coupled to the EDIB bus by a transmission mode transformer isolation coupling.

[0023] The downhole instrument includes a data receiving module 3 ...

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Abstract

The invention discloses a remotely updating device of an EDIB (Electronic Data Interchange Bus) based down-hole program. In a ground logging system, an updating program is compiled as a target file of .out by CCS (Compiling Program Software); in a program processing module, the program is analyzed and extracted to be changed into hexadecimal data and then is encapsulated; in a data transmission module, Manchester encoding is performed, a differential signal outputted after encoding is driven, isolated, coupled and outputted to the EDIB. In a down-hole apparatus, the differential signal on the EDIB is coupled, linearly received and reshaped in a data receiving module, and outputted to FPGA (Field Programmable Gate Array) for Manchester encoding so as to restore the hexadecimal encapsulated data; a program updating module extracts the hexadecimal data from the hexadecimal encapsulated data, restores the hexadecimal data as an object code capable of being identified by DSP Boot Loader and then writes the restored hexadecimal data in a program storage via a programming library function so as to update the program of a down-hole apparatus. Without influencing on the normal logging work, the ground system and the down-hole apparatus are reconstructed to improve the logging efficiency.

Description

technical field [0001] The invention belongs to the technical field of program remote update, and more specifically relates to an EDIB bus-based downhole program remote update device. Background technique [0002] CNOOC Service Technology Center developed the ELIS logging system and proposed a communication specification for downhole instruments. [0003] Prior art The Chinese utility model manual published on February 18, 2009, with the authorized announcement number CN 201196089Y and the name "A Communication Circuit for Downhole Instruments", provides a surface logging system for communication with downhole instruments One end of the communication circuit is connected to the logging system on the ground through the EDIB bus, and the other end is connected to the data acquisition and processing system of the downhole instrument through the duplex serial port; the communication circuit consists of a field programmable gate array chip, a central processing unit, data memory...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B49/00G06F9/445
Inventor 师奕兵张伟王志刚李焱骏陈磊饶知
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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