Sector measurement data correction method based on borehole diameter measuring instrument
A technology for caliper measurement and measurement data, which is applied in the fields of seismology and seismic signal processing for well logging records, can solve the problems of inability to correct and greatly affect the measurement results, so as to avoid the influence of measurement results and improve accuracy The effect on rate and productivity
Inactive Publication Date: 2019-05-17
BEIJING HUARUI JIUIZHOU ENERGY TECH
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[0005] For this reason, the embodiment of the present invention provides a method for calibrating sector measurement data based on a caliper to solve the problem in the prior art that the eccentricity of the caliper has a great influence on the measurement results and cannot be corrected
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[0023] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] The caliper measuring instrument of this embodiment uses the multi-arm caliper measuring instrument to correct the sector in real time, so that each caliper and azimuth correspond to each other on the data acquisition instrument, so as to obtain the three-dimensional well conditions under the three-dimensional coordinate system, including: The eye trajectory itself, the three-dimensional w...
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The embodiment of the invention discloses a sector measurement data correction method based on a borehole diameter measuring instrument, and relates to the technical field of the petroleum logging. The method comprises the following steps: measuring standard data of sleeves in different sizes through the borehole diameter measuring instrument; obtaining scale coefficients corresponding to the sleeves in different sizes by using a scale measurement method; obtaining a linear measurement formula according to the standard data and scale coefficients of the sleeves in different sizes; measuring the actual measurement data of the borehole diameter through the borehole measuring instrument; and correcting the actual measurement data according to the linear measurement formula. The problems thatthe influence on the measurement result is large and the correction cannot be performed when the borehole measuring instrument is eccentric in the prior art can be solved.
Description
technical field [0001] The embodiment of the present invention relates to the technical field of petroleum well logging, in particular to a method for correcting sector measurement data based on a caliper measuring instrument. Background technique [0002] The caliper arm of the caliper measuring instrument expands and contracts under the action of the spring force, and converts the change of the caliper arm into a change of resistance value. When actually performing caliper measurement, the instrument is lowered to the expected depth, Then the well caliper arms are opened in a certain way, so that a plurality of well caliper arms are stretched outwards under the action of the spring force, and their ends are close to the well wall. As the instrument is lifted upwards, the borehole arm will expand and contract due to the change of borehole diameter, and drive the connecting rod to move up and down. If the connecting rod is connected to the sliding end of a potentiometer, th...
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Inventor 杨斌张国芳张传超赵勇霍华伟魏建宝李卫强
Owner BEIJING HUARUI JIUIZHOU ENERGY TECH