A Calibration and Calibration System for Induction Imaging Logging Technology
An imaging logging and calibration system technology, applied in the field of petroleum logging, can solve problems such as deep detection depth, and achieve the effect of improving measurement accuracy
Active Publication Date: 2017-11-07
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
The detection depth of the longest sub-array is deep (the detection depth of the longest sub-array is 2.6m), and there is still a large ground influence when using a 1.2m high wooden bench scale
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[0026] The structure of the present invention will be described below in conjunction with the accompanying drawings.
[0027] Such as figure 1 As shown, the calibration and calibration system for induction imaging logging technology of the present invention includes a main water tank 1 and a mixed liquid tank 3 connected with the main water tank 1. The mixed liquid tank 3 is connected with several liquid distribution tanks 2 through pipelines. The main water tank 1 is connected to a heating furnace 4 through pipelines, and valves 6 are arranged on each pipeline.
[0028] Such as figure 2 As shown, the main water tank 1 includes an outer cylinder and a glass fiber reinforced plastic inner cylinder 9 arranged in the cavity of the outer cylinder. Several horizontally distributed simulated formation support plugs 7 are arranged on the side wall of the outer cylinder. The plug 7 is provided with a simulated formation 10 between the wall of the outer cylinder and the wall of the ...
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The invention discloses a correction and calibration system of sensing and imaging logging technology. The correction and calibration system comprises a main water pot used for correcting and calibrating a logging apparatus, and a liquid mixing port. The liquid mixing pot is communicated with the main water pot via a circulation pipeline and used for mixing different conductivity of liquid. The liquid mixing pot is communicated with multiple liquid distribution pots used for storing different conductivity of liquid. The main water pot is communicated with a heating furnace, and comprises an outer cylinder and a glass reinforced plastic inner cylinder arranged in a cavity body of the outer cylinder. Multiple horizontally distributed simulation stratum support end caps are arranged on the side wall of the outer cylinder. Simulation stratum suspension frames are arranged on all layers of the simulation stratum support end caps. Holes are arranged in the middle of simulation stratums. Space among all layers of simulation stratums is filled with different conductivity of liquid. According to the invention, the correction and calibration system supports precise calibration of an array sensing device, generation of scale and temperature correction, and mutual verification of all kinds of borehole calibration equations fitted by an inversion algorithm of an array sensing log tool; conditions of all kinds of instrument response and borehole correction equations for correcting direction problem calculation are satisfied; and calibration of apparatuses with the electric method while drilling is considered.
Description
technical field [0001] The invention relates to the field of petroleum logging, and specifically designs an induction imaging logging technology correction and calibration system. Background technique [0002] MIT array induction logging tool, as an imaging logging equipment independently developed by CNPC Logging Co., Ltd., has been put into field application for a total of 200 sets. The products are distributed in Changqing, North China, Tuha, Qinghai, Tuha, Tarim, Jilin, Bohai drilling , Iran, Kazakhstan, Bangladesh and Uzbekistan and other domestic and foreign markets. With the continuous improvement of instrument electronic circuit and process design, the electronic circuit of the currently designed array induction logging tool is stable and has good measurement repeatability. However, array induction logging tools need to be calibrated regularly. Calibration is the process of establishing the relationship between instrument measurement values and engineering standar...
Claims
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IPC IPC(8): G01V13/00
CPCG01V13/00
Inventor 党峰李梦春陈涛马骁彭其尧徐永发刘伟
Owner BC P INC CHINA NAT PETROLEUM CORP