A detection performance testing device for an array induction logging tool

A logging instrument and array sensing technology, used in surveying, wellbore/well components, earthwork drilling, etc., can solve problems such as large differences, achieve accurate testing, reduce instrument measurement errors, and improve logging quality.

Active Publication Date: 2016-08-03
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

However, due to the large difference between the array induction logging tool and the dual induction logging tool, after the original data is measured, it is necessary to go through subsequent complex data processing processes such as true resolution synthesis and resolution matching, in order to finally obtain the For the logging curves of detection depth and vertical resolution, whether the log value after data processing can reflect the real resistivity in the formation and achieve the expected radial detection depth and vertical resolution of the instrument, there is no corresponding at home and abroad. The test device to verify and calibrate it

Method used

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  • A detection performance testing device for an array induction logging tool
  • A detection performance testing device for an array induction logging tool
  • A detection performance testing device for an array induction logging tool

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specific Embodiment approach

[0017] attached figure 1 It is a calibration device for array induction logging tools, which is composed of two coaxial cylindrical thin cylinders with different radii. The value ranges of diameter length are 0.1-0.25m and 4-10m respectively, and the value range of cylinder height is 10-15m. , the ideal radius lengths are 0.2m and 5m respectively, the ideal cylinder height is 13.5m, the upper and lower bottom surfaces are sealed except the central cylinder, the cylinders are filled with NaCl solution, and there is no solution in the central cylinder; when performing array induction When the logging instrument is calibrated, NaCl solution is filled between the baffles, and the salinity of the solution can be set arbitrarily to simulate a uniform formation; the whole device is made of non-metallic materials to reduce the impact of the thin cylinder material on the scale due to its own electromagnetic induction. The impact produced; the device is placed parallel to the ground acc...

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Abstract

The invention discloses a detection performance testing device of an array sensing well detection instrument. The method includes the following steps that a system for testing the detection performance of the array sensing well detection instrument is composed of three devices, wherein the three devices are the array sensing well instrument scale device, the array sensing well detection instrument radial detection depth testing device and the array sensing well detection instrument lengthwise resolution testing device. The system for testing the detection performance of the array sensing well detection instrument can be used for carrying out an instrument detection performance test on the array sensing well detection instrument. According to the detection performance testing device of the array sensing well detection instrument, the detection performance of the array sensing well detection instrument can be accurately tested, measurement errors by the instrument are reduced, the well detection quality of the instrument when the instrument is used on a spot is improved and the stratum comprehensive evaluation effect can be easily improved.

Description

technical field [0001] The invention relates to a detection performance test and calibration device of an array induction logging instrument used for an array induction logging instrument of a petroleum logging instrument. Background technique [0002] Before logging, the array induction logging tool, similar to the dual induction logging tool, needs to calibrate the initial measurement signal for each sub-coil system to establish the relationship between the formation conductivity and the readings of the induction logging tool; the calibration method is generally adopted in the A conductive ring with a certain diameter is connected in series with different resistances and placed vertically on a specific position of the coil system to simulate a uniform formation with a certain conductivity, and the signal generated by the conductive ring on the receiving coil is equal to the signal in the uniform infinite formation. However, due to the large difference between the array ind...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B49/00
Inventor 范宜仁邓少贵孙庆涛李虎
Owner BC P INC CHINA NAT PETROLEUM CORP
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