Stand pipe fixing device

A technology for fixing devices and standpipes, applied in the direction of drill pipes, casings, drilling equipment, etc., can solve problems such as cutting and installation difficulties, standpipe swaying, difficult to ensure the safety of standpipe operation, etc., and achieve overall stability and compactness , easy to operate, and improve the effect of operating safety

Inactive Publication Date: 2011-11-09
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At sea, due to wind, waves, and other reasons, the ship moves, and the riser will sway greatly, which will bring great difficulties to the corresponding cutting and installation work. In order to stabilize the riser, the traditional method can only be compared with the weather. Un

Method used

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Examples

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Embodiment Construction

[0026] Such as Figure 1-Figure 4 As shown, the present invention includes: two slide rails 1, the slide rails are in the shape of a dovetail groove, and two corresponding slide plates 2 are installed on the slide rails, the slide plate 2 is a boss structure, and the slide rails are provided with Cooperating dovetail grooves; one end of the two slide plates 2 is respectively installed with a hydraulic cylinder 9 corresponding to each other, and the hydraulic cylinder rod of the hydraulic cylinder 9 is connected with the slide plate 2 as a whole through the flange plate 7 and the bolt and nut pair 8. The other ends of the two slide plates 2 correspond to each other and adopt a welding method to install a conical half-ring cylinder 6. The upper and lower ends of the conical half-ring cylinder 6 are welded to install an upper support plate 5 and a lower support plate 3, and the half-ring cylinder 6 is welded. Has a set inclination angle that applies to the riser catenary form. T...

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PUM

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Abstract

The invention discloses a stand pipe fixing device provided with a sliding rail, wherein the sliding rail is provided with two corresponding sliding plates; one ends of the two sliding plate are respectively and correspondingly provided with a hydraulic cylinder; the other ends of the two sliding plates are respectively and correspondingly provided with a semi-annular barrel; the two sliding plates are connected into a whole by a locking mechanism; the hydraulic cylinder rods of the hydraulic cylinders and the sliding plates are connected into a whole by a flange plate; a plurality of reinforcing vertical boards are fixed around the semi-annular barrels; and the upper end and the lower end of each semi-annular barrel are respectively provided with an upper support plate and a lower support plate. According to the invention, a stable and reliable environment can be provided for supporting stand pipes so as to bring convenience for cutting abandoned pipe end sockets and installing drawing heads; meanwhile, system operation safety is improved.

Description

technical field [0001] The invention relates to a fixing device, in particular to a riser fixing device for a deepwater riser lifting system. It belongs to the field of offshore oil engineering. Background technique [0002] At present, offshore oil and gas exploration and development have expanded from shallow seas to deep seas, and are focusing on oil and gas reservoirs with water depths exceeding 3,000 meters that are rich in oil, gas and gas hydrate resources. The development of deep-water oil and gas fields is becoming the main growth point of the world petroleum industry and the frontier of technological innovation. The riser system is an important part in the construction of deepwater oil and gas field development projects. When the platform is not in place, the riser must be pre-laid on the seabed when laying the submarine pipeline. After the platform is installed, the riser is lifted up by a crane retractable winch for related operations. [0003] When the standp...

Claims

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Application Information

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IPC IPC(8): E21B17/01E21B19/02
Inventor 何宁房晓明段梦兰王懿王金龙梁辉
Owner CHINA NAT OFFSHORE OIL CORP
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