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Self-elevating platform continuous tripping drilling machine

A jack-up platform and tripping technology, applied in drill pipe, drill pipe, drilling equipment, etc., can solve problems such as low operation efficiency, improve operation efficiency, reduce the impact of downhole pressure fluctuations, and improve stability Effect

Pending Publication Date: 2021-12-03
LANZHOU LS PETROLEUM EQUIP ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a jack-up platform continuous tripping drilling rig to solve the problem of low efficiency of the existing marine jack-up platform intermittent tripping operation and reduce the risk of downhole accidents

Method used

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  • Self-elevating platform continuous tripping drilling machine
  • Self-elevating platform continuous tripping drilling machine
  • Self-elevating platform continuous tripping drilling machine

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0044] Such as Figure 1 to Figure 6 A self-elevating platform continuous tripping drilling rig is shown, including a drilling floor 2 installed on a cantilever beam 1 and a main drilling system 3, and the main drilling system 3 includes a drawworks 32 fixedly installed on the drilling floor 2 and a main derrick 31. The drilling wire rope 36 drawn from the drawworks 32 bypasses the crown block 33 installed on the top of the main derrick 31 and connects with the traveling block 34. A top drive 35 is suspended at the lower end of the traveling block 34, and a continuous tripping system is installed inside the main derrick 31 4 and piping system 5;

[0045] The continuous tripping system 4 includes a guide derrick 41 with a C-shaped frame structure with an open front side, a pulley block 42, a lifting cylinder 43, a pipe handling mechanism 44 fo...

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Abstract

The invention relates to a self-elevating platform continuous tripping drilling machine. The self-elevating platform continuous tripping drilling machine comprises a drill floor and a main drilling system which are installed on a cantilever beam, a drilling steel wire rope led out of a winch bypasses a crown block installed at the top end of a main derrick and is connected with a traveling block, a top drive is hung at the lower end of the traveling block, and a continuous tripping system and a pipe arranging system are installed in the main derrick. The continuous tripping system comprises a tackle, a lifting sheet frame and a supporting sliding frame, a continuous rotating iron roughneck and a front opening power slip are installed in the supporting sliding frame, and a supporting rod is hinged between a front stand column of the supporting sliding frame and the tackle. According to the self-elevating platform continuous tripping drilling machine, in the continuous tripping operation process, the continuous rotating iron roughneck and the front opening power slip can alternately enter and exit from the center line position of a well mouth with a top drive system according to the pipe tool operation requirement; a dynamic pipe column can be suspended, a dynamic pipe connector can be subjected to continuous screwing-on and screwing-off, slurry recycling and other operation processes are treated efficiently, the operation efficiency is greatly improved, and the reliability is high.

Description

technical field [0001] The invention belongs to the field of offshore oil drilling machinery, and in particular relates to a jack-up platform continuous tripping drilling rig. Background technique [0002] The current offshore jack-up drilling platform adopts the intermittent tripping method in the operation process. The main steps when drilling and connecting the drill string are as follows: 1) The top drive lowers the drill string to the turntable of the drill floor and is fastened by the slips, and the upper part of the drill string is exposed to a height of about 1200mm on the drill floor; 2) The pipe racking machine erects the pipe Take it out from the finger beam, move it to the turntable to align the pipe stand with the drill string; 3) The iron driller moves to the turntable, and connects the pipe stand with the lower drill string for make-up operation; 4) Make-up is completed Finally, the iron driller withdraws, the top drive lifts the entire drill string, and then...

Claims

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Application Information

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IPC IPC(8): E21B19/00E21B19/10E21B19/16
CPCE21B19/002E21B19/10E21B19/161
Inventor 朱本温李晓明李联中魏双会刘雅静陈波赵健张庆斌郑晓东樊雪燕
Owner LANZHOU LS PETROLEUM EQUIP ENG CO LTD
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