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Underwater wellhead dip angle indicating device

A technology for underwater wellheads and indicating devices, which can be used in wellbore/well components, measurement, earthwork drilling and production, etc. It can solve the problems of inaccurate readings and difficult zeroing of indicating devices, and achieve convenient reading and zeroing, rolling speed Slow, easy to install effect

Active Publication Date: 2021-06-22
CHINA NAT OFFSHORE OIL CORP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above outstanding problems, the present invention provides an underwater wellhead inclination angle indicating device, which measures the inclination angle of the underwater wellhead equipment in the horizontal and vertical directions through two sets of angle indicators perpendicular to each other, and solves the problem of conventional disc-shaped Problems with inaccurate readings and difficult zeroing of the inclination indicating device

Method used

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  • Underwater wellhead dip angle indicating device

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention are clearly and completely described below. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before...

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Abstract

The invention relates to an underwater wellhead dip angle indicating device. The underwater wellhead dip angle indicating device comprises a base, an angle indicator and a dial, wherein a groove is formed in the base, and the base is installed on the outer surface of an underwater wellhead through a supporting frame or directly welded to the outer surface of the underwater wellhead; the angle indicator is arranged in the groove and comprises a transparent cylinder, an indicating bead and a spring, a side end cover and a spring end cover are correspondingly and detachably installed at the two ends of the transparent cylinder, the first end of the spring is connected with the spring end cover, the second end of the spring is a free end and can perform telescopic motion in the transparent cylinder, the indicating bead is contained in a cavity of the transparent cylinder, the indicating bead is fixedly connected with the second end of the spring, and the transparent cylinder is filled with a lubricant; and the dial is arranged above the angle indicator in a covering mode, and the dial is detachably installed on the base. The underwater wellhead dip angle indicating device can accurately read dip angles of the underwater wellhead equipment in the transverse direction and the longitudinal direction.

Description

technical field [0001] The invention relates to an underwater wellhead inclination angle indicating device, which belongs to the technical field of oil and gas drilling equipment. Background technique [0002] At present, the inclination indicating device commonly used in underwater wellheads is disc-shaped, and the angle scale is in the shape of a ring. The inclination angle can be read by the position of the steel ball set in the inclination indicating device on the ring scale, which is difficult to accurately read the underwater wellhead. The inclination angle of the wellhead equipment in the horizontal and vertical directions. [0003] In addition, due to installation errors during operation, it is difficult to ensure that the dip angle indicating device is at zero position when the underwater wellhead is launched. Contents of the invention [0004] In view of the above outstanding problems, the present invention provides an underwater wellhead inclination angle indic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/024E21B47/001
CPCE21B47/024
Inventor 李中李刚耿亚楠张亮幸雪松赵维青吴怡孙翀同武军付兴
Owner CHINA NAT OFFSHORE OIL CORP
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