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Multifunctional and energy-saving heave compensation drawworks for ultra-deep floating drilling and its working method

A heave compensation, multi-functional technology, applied in hoisting device, mechanical equipment, spring mechanism, etc., can solve the problems of small transformation range, large volume, small flow, etc., to achieve heave compensation, save the Heave compensation system, energy saving effect

Inactive Publication Date: 2017-02-01
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, the new hydraulic transformers still have shortcomings such as small voltage transformation range, high heat generation, and high noise. The flow rate is small and the power is low, and its performance is far from meeting the requirements of practical engineering applications.
The traditional hydraulic transformer composed of dual-variable motors has a large voltage transformation range and high energy recovery efficiency. When applied to high-power occasions, the disadvantage of large volume does not exist.

Method used

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  • Multifunctional and energy-saving heave compensation drawworks for ultra-deep floating drilling and its working method
  • Multifunctional and energy-saving heave compensation drawworks for ultra-deep floating drilling and its working method
  • Multifunctional and energy-saving heave compensation drawworks for ultra-deep floating drilling and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the winch of this embodiment includes a drum 1, two drum hydraulic motors 3, a speed reduction mechanism, two direct drive pump source mechanisms 4, two hydraulic transformers 5, an accumulator group 6, a hydraulic brake mechanism 7, Pump source safety valve 11, accumulator group safety valve 12, check valve 8, pump source reversing valve 9, brake reversing valve 10 and oil tank 2.

[0022] Wherein, a steel wire rope is wound on the drum 1, one end of the steel wire rope is hung with a suspended object, and the other end is a dead rope end fixedly connected with the platform, and the drum 1 rotates in different directions to realize the lifting of the suspended object. In this embodiment, an internal gear is provided on one side of the drum 1, and the output shafts of the two drum hydraulic motors 3 are connected to the input end of the deceleration mechanism, and the output gear of the deceleration mechanism meshes with the internal gear of t...

Embodiment 2

[0043] Such as image 3 As shown, in this embodiment, internal gears are provided on both sides of the drum 1 of the winch, and the winch is divided into symmetrical left and right sides with the drum 1 as the center, and the structure of each side is the same as that of Embodiment 1. , and the control systems on both sides jointly control the drum 1.

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Abstract

The invention discloses a multi-functional energy-saving heave compensation drawworks for ultra-deep floating drilling and a working method thereof. The oil tank, the T port of each drum hydraulic motor is connected to the oil tank, and also includes at least two direct drive pump source mechanisms, one-way valve, pump source reversing valve, at least two hydraulic transformers, accumulator groups, accumulator Set safety valve, brake reversing valve and hydraulic control brake mechanism.

Description

technical field [0001] The invention relates to the technical field of marine engineering equipment, in particular to a multi-functional energy-saving heave compensation winch for ultra-deep floating drilling and a working method thereof. Background technique [0002] The proven offshore oil reserves amount to 1357×108 t, accounting for more than 75% of the earth's total reserves. Among them, 30% are distributed in deep water and ultra-deep water, and with the advancement of deep water exploration technology, this proportion will only increase. Exploration and exploitation of oil in deep-water and ultra-deep water areas can only use floating operating platforms. Ultra-deep floating drilling requires high-power drilling winches and high-power, long-stroke heave compensation systems. The performance of drilling winches and heave compensation systems The quality of oil directly affects the efficiency and progress of offshore oil development. [0003] The winch is the most imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/02B66D1/08B66D1/44B66D5/28
CPCF15B1/02B66D1/08B66D1/44B66D5/28B66D2700/01B66D1/52
Inventor 肖体兵洪永葛友明邹大鹏
Owner GUANGDONG UNIV OF TECH
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