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High-efficiency self-adaptive bottom-seat underwater skid and bottom-seat method

An self-adaptive, bottom-setting technology, applied in the direction of earthwork drilling and production, wellbore/well components, etc., can solve the problems of high operation intensity, difficulty in confirming the suspension situation, and low operation efficiency, so as to achieve good support effect and reduce offshore operation costs , high working efficiency

Active Publication Date: 2019-07-19
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The conventional solution is to first use sandbags to fill up the uneven area of ​​the seabed by divers, and then lower the skid to sit on the bottom of the seabed, thereby reducing the suspended area at the bottom of the skid. This method has high work intensity and low work efficiency, and The leveling effect of the sandbag is not good, and it is difficult to confirm the suspension of the pry block after it sits on the bottom

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  • High-efficiency self-adaptive bottom-seat underwater skid and bottom-seat method
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  • High-efficiency self-adaptive bottom-seat underwater skid and bottom-seat method

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. And the features in the embodiments can be combined with each other.

[0032] Such as figure 1 and figure 2 As shown, the embodiment of the present invention provides a high-efficiency self-adaptive underwater skid, including a skid base 1, a plurality of elastic grouting bladders 4 are evenly distributed on the bottom surface of the skid base 1, and the elastic grouting bladders 4. The material is elastic rubber, and the inner cavity can be poured with mud, which has the characteristics of wear resistance, high pressure resistance and easy deformation; the expansion volume of the elastic grouting bag can fill the gap between the skid base and the seabed; the elastic grouting bag is evenly arranged Underneath the skid bas...

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Abstract

The invention discloses an efficient self-adaptive bottom supporting underwater skid which comprises a skid base. Multiple elastic grouting bags are evenly installed on the bottom face of the skid base. Each elastic grouting bag is connected with an independent injection branch pipeline. Each injection branch pipeline is provided with an injection valve. Each elastic grouting bag is connected with an independent drainage pipeline. Each drainage pipeline is provided with a drainage valve. The multiple elastic grouting bags are installed on the lower face of the skid base in advance, after the skid is put down for bottom supporting, slurry is injected into the elastic grouting bags through the injection branch pipelines, the elastic grouting bags are expanded in a self-adaptive mode to fill the gap between the skid base and a seabed, and a firm support is formed after slurry is solidified. Underwater skid efficient self-adaptive bottom supporting can be achieved, the supporting effect is good, the operation efficiency is high, and the offshore operation cost is reduced. The invention further discloses an underwater skid bottom supporting method.

Description

technical field [0001] The invention belongs to the technical field of offshore drilling, and in particular relates to an efficient self-adaptive bottom-sealing underwater skid and a bottom-sealing method. Background technique [0002] The underwater skid needs to be installed on the seabed in place. When the seabed is uneven, the suspended area at the bottom of the skid is large and unstable, which does not meet the installation requirements. The conventional solution is to first use sandbags to fill up the uneven area of ​​the seabed by divers, and then lower the skid to sit on the bottom of the seabed, thereby reducing the suspended area at the bottom of the skid. This method has high work intensity and low work efficiency, and The leveling effect of the sandbag is not good, and it is difficult to confirm the suspension of the pry block after it sits on the bottom. [0003] The purpose of the foregoing discussion is to introduce the reader to various aspects of the techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B41/08
CPCE21B41/08
Inventor 曾云飞周声结张万兵林华春林先文刘立辉陈大江戚蒿王和波于成龙
Owner CHINA NAT OFFSHORE OIL CORP