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Graduation system and method for lithologic density instrument

A technology of lithology density and calibration method, which is applied in the direction of instruments, earthwork drilling and production, boreholes/well components, etc., can solve the problems that workers are easily exposed to relatively large radiation, reduce calibration workload, shorten calibration time, improve The effect of security conditions

Active Publication Date: 2012-10-17
CHINA NAT OFFSHORE OIL CORP +1
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that the staff are easily exposed to relatively large radiation when the current lithology density instrument is calibrated.

Method used

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  • Graduation system and method for lithologic density instrument
  • Graduation system and method for lithologic density instrument

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Embodiment Construction

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0021] Such as figure 1 As shown, the lithology density instrument calibration system of the embodiment of the present invention mainly includes a linear track 1, a lithology density instrument (not shown in the figure), a magnesium block and an aluminum block, and the like. The lithology density instrument is arranged on the linear track 1 through the rail car 2, and the rail car 2 can carry the lithology density instrument to move linearly along the linear track 1. The magnesium block and the aluminum block are arranged on the extension line in the same direction of the li...

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Abstract

The invention discloses a graduation system and a graduation method for a lithologic density instrument, which are used for overcoming the defect of high radiation on working personnel during gradation of the conventional lithologic density instrument. The system comprises a linear track, a lighologic density instrument, a magnesium block and an aluminum block, wherein the lighologic density instrument is arranged on the linear track; and the magnesium block and the aluminum block are arranged on an extension line of the linear track along the same direction. Due to the adoption of the system and the method, the graduation time of the lighologic density instrument is shortened remarkably, the graduation workload is lowered, the exposure time of working personnel in a radioactive space is shortened, and the safety conditions of the working personnel are improved remarkably.

Description

technical field [0001] The invention relates to a lithology density instrument calibration technology, in particular to a lithology density instrument calibration system and method. Background technique [0002] When performing secondary (workshop) calibration on existing lithology density series logging tools, two basic parts, magnesium block and aluminum block, are generally used, and there are two methods of vertical calibration and horizontal calibration. The vertical scale method is to use hoisting equipment to lift the instrument vertically, while the horizontal scale method is to place the instrument horizontally on the rail car through the rail car. In these two methods, the magnesium block and the aluminum block are placed side by side on one track, and the density instrument is set on the other track, and the two tracks are placed at 90 degrees. When grading, it is necessary to place the lithological density instrument in the magnesium block vertically or horizont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00G01V13/00
Inventor 黄雅杜华伟李明王亮
Owner CHINA NAT OFFSHORE OIL CORP
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