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Mechanical frame for optical-fiber gyro inclinometer for oil well

A fiber optic gyroscope and inclinometer technology, which is used in surveying, wellbore/well components, earth-moving drilling, etc., can solve the problems of inconvenient operation and maintenance, poor vibration resistance, complex structure, etc., to reduce mutual signal interference and reduce Processing difficulty and the effect of expanding the collection range

Inactive Publication Date: 2007-08-15
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the mechanical gyro inclinometer is composed of frame support, high-speed rotating gyro motor, frame support suspension and brush assembly, this type of inclinometer has complex structure, easy damage, poor vibration resistance, short life, and large drift. , poor precision and inconvenient operation and maintenance

Method used

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  • Mechanical frame for optical-fiber gyro inclinometer for oil well
  • Mechanical frame for optical-fiber gyro inclinometer for oil well
  • Mechanical frame for optical-fiber gyro inclinometer for oil well

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] The present invention is a kind of mechanical frame used for the continuous inclinometer of fiber optic gyro oil well, and this mechanical frame has three-dimensional coordinate system relation, and is a two-stage structure (namely the first fixing plate 1, shown in Fig. 2, and for installing The frame body of the sensor assembly, shown in Figure 3), is provided with for fixing the sensor assembly (the sensor assembly generally has three fiber optic gyroscopes and three accelerometers) and the fixed shielding cover (the shielding cover is made of a plurality of curved steel plates) Multiple threaded holes formed by connecting the threaded holes on the mechanical skeleton respectively; the sensor components are respectively installed on the mechanical skeleton at different parts, and then multiple shielding covers are connected with the threaded holes on...

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Abstract

This invention relates to a mechanic bone used in a fiber oil well gyrolevel in two sections and a 3-D coordinate system relation composed of a positioning drum, an X-axial erecting bed, a y-axial erecting bed, an x-axial rectangular cavity, a y-axial rectangular cavity and a fixing plate for installing CB, a first fixing plate is connected at one end of the first positioning drum, among which, the y and x axial erecting beds are set between the first positioning dram and the x-axial rectangular cavity, a second fixing plate is set between the two rectangular cavities and a third fixing plate is between the y-axial rectangular cavity and the second positioning drum. This invention applies a reasonable distribution for the mechanical bone structure: gyro+CB+gyro+CB+gyro+ three accelerometers.

Description

technical field [0001] The invention relates to a mechanical frame structure used for fixing sensor components in an optical fiber gyro oil well inclinometer, and the mechanical frame has a three-dimensional coordinate system relationship. Background technique [0002] The gyro inclinometer is the main measurement tool for the borehole trajectory of oil wells with magnetic interference such as cased wells. At present, the gyro inclinometers used at home and abroad mainly use mechanical gyroscopes as angular velocity sensors to measure well inclination and azimuth. Since the mechanical gyro inclinometer is composed of frame support, high-speed rotating gyro motor, frame support suspension and brush assembly, this type of inclinometer has complex structure, easy damage, poor vibration resistance, short life, and large drift. , poor precision and inconvenient operation and maintenance. [0003] Fiber optic gyro oil well continuous inclinometer adopts fiber optic gyroscope to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/02
Inventor 张春熹杜新政高爽李艳王易敏徐宏杰林恒贾向东刘国权
Owner BEIHANG UNIV
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