Drill assisted jack-up platform spud shoe

A self-elevating platform and drill bit technology, applied in construction, artificial island, infrastructure engineering and other directions, can solve problems such as difficulty in inserting and pulling out piles, and achieve the effects of reducing the difficulty of inserting piles, reducing sediment resistance and good sealing performance.

Inactive Publication Date: 2019-06-21
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of difficult insertion and extraction of piles in the prior art, the present invention provides a drill-assisted self-elevating platform spud shoe

Method used

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  • Drill assisted jack-up platform spud shoe
  • Drill assisted jack-up platform spud shoe
  • Drill assisted jack-up platform spud shoe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as Figure 1 to Figure 5 As shown, the spud shoe of the drill-assisted self-elevating platform includes: a spud shoe main body 1, which is located at the lower end of the spud leg 2, and a drill bit can be installed on the upper or / and lower surface of the spud can main body 1 according to different seabed topography.

[0019] The drill bit is a spray-type roller cone bit, and a water outlet hole is arranged on the outer surface of the drill bit; by adjusting the position and quantity of the drill bit to be suitable for different spud cane structures, the drill bits are arranged uniformly or unevenly along the circumference of the spud can main body; The drill bit is arranged on the surface of the spud can main body 1, and the gray ring is used for double-layer sealing between the spud can main body 1 and the spud can main body 1.

[0020] Power lines 3 and water supply pipes are arranged inside the spud shoe main body 1 and pile legs 2, and voltage and high-pressu...

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Abstract

The invention belongs to the technical field of oceanographic engineering, and particularly relates to a self-elevating platform pile shoe assisted by drill bits. The self-elevating platform pile shoe assisted by the drill bits comprises a pile shoe body; the pile shoe body is located at the lower end of a pile leg; and the drill bits can be arranged on the surfaces of the upper part or / and the lower part of the pile shoe body according to different submarine topographical conditions. According to the self-elevating platform pile shoe assisted by the drill bits, in the pile inserting process, by means of the rotation of the lower drill bits and the rotary jetting of high-pressure water, silt at the lower part of the pile shoe can be loosened, the silt resistance can be reduced, and the pile inserting difficulty can be reduced; in the pile pulling process, by means of the rotation of the upper drill bits and the rotary jetting, the silt on the upper surface of the pile shoe can be loosened, the resistance of the upper silt can be reduced; and by means of the rotation of the lower drill bits and the rotary jetting, the friction of the seabed silt can be reduced, and the pile pulling difficulty can be reduced.

Description

technical field [0001] The invention belongs to the technical field of marine engineering, and in particular relates to a spud shoe of a self-elevating platform assisted by a drill bit. Background technique [0002] With the further development and utilization of marine resources, the development scale of ocean platforms is getting bigger and bigger, and a large number of ocean platforms (especially jack-up ocean platforms) are widely used all over the world. In order to improve the stability of the jack-up offshore platform, spud cans with a cross-sectional area larger than the cross-sectional area of ​​the legs are generally arranged at the bottom of the legs. The structural forms of spud cans are circular, rectangular, polygonal and conical, etc., and the purpose is to increase the contact area with the seabed, reduce the pressure on the seabed ground, and improve the stability of the platform. The traditional spud cans often have problems such as shallow depth of mud en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00
CPCE02B17/00E02B2017/0056E02B2017/0065
Inventor 曹宇光李云鹏张士华樊敦秋蒙占彬辛露刘畅田宏军朱鹏鹏
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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