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Underground instrument maintenance and calibration system

A downhole instrument and calibration technology, applied in wellbore/well components, measurement, earthwork drilling, etc., can solve problems affecting work efficiency, difficult system debugging, complicated maintenance, etc., to reduce workload, strong anti-interference ability, The effect of improving reliability

Inactive Publication Date: 2011-04-27
XIAN WELL LOGGING ENERGY TECH
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a downhole instrument maintenance and calibration system, through the conversion and transmission of the downhole instrument data through the CAN-USB device, to overcome the difficulty of debugging, complicated maintenance and affecting work efficiency caused by the maintenance and calibration of the existing system The problem

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Embodiment Construction

[0025] When the CAN bus network is connected to the computer, if the RS232 interface is used, the advantage of fast CAN speed will be limited. To make full use of the performance of the CAN network, the CAN / PCI board can be used, but the cost of the board is high, and the development cycle is long. With the development of the USB bus, for example, the highest rate of USB1.1 is 12Mbps, which can fully meet the transmission rate requirements of the CAN bus, and the USB bus has obvious advantages such as plug and play, support for hot plug and hot swap, etc., CAN-USB Equipment, which successfully realizes the efficient data transmission between the CAN field bus network and the computer.

[0026] see figure 1 , a kind of downhole instrument maintenance, calibration system of the present invention is exactly to realize through CAN-USB device 3 through data transmission between host computer 1 (PC machine or computer) and downhole instrument 2, namely between host computer 1 and do...

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Abstract

The invention relates to an underground instrument maintenance and calibration system. At present, maintenance and calibration of underground instruments in the market can be realized by connecting the underground instruments to a telemetry gauge, while the telemetry gauge is an instrument responsible for connecting logging underground instruments with a logging ground system through data transmission; generally, the debugging and calibration of the underground instruments require that the underground instruments are connected to the telemetry gauge and a logging instrument trolley, the whole process is fussy, the instruments are difficult to maintain and debug, and a plurality of instruments cannot work simultaneously during maintenance or failure. The underground instrument maintenance and calibration system comprises an upper computer, an underground instrument and CAN-USB (controller area network-universal serial bus) equipment, wherein the CAN-USB equipment is connected between the upper computer and the underground instrument. The CAN-USB equipment replaces the telemetry gauge to realize data transmission, the wiring is simple, and a plurality of instruments can be simultaneously maintained and calibrated by a plurality of systems without interference, so the work efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of well logging, in particular to a downhole instrument maintenance and calibration system. Background technique [0002] With the acceleration of the oil and gas exploration process and the improvement of the degree of exploration, the exploration objects are becoming more and more complex and hidden, and the exploration is becoming more and more difficult. The reality is that the requirements for accelerating the improvement of logging level are becoming more and more urgent. However, the development of logging technology is facing many difficulties. . At present, the leading products in the market are Schlumberger's MAXIS-500 system, Baker-Atlas' ECLIPS-5700 system and Halliburton's EXCELL-2000 system. In order to meet some special logging requirements, Various logging companies have developed an integrated rapid logging platform system. However, the above-mentioned system must be connected to the remot...

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Application Information

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IPC IPC(8): E21B47/00E21B47/12E21B49/00
Inventor 赵宏斌李智明王芳李峰波高怡左三林熊志华肖江涛
Owner XIAN WELL LOGGING ENERGY TECH
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