Winch heave compensation device of marine floating drilling platform

A technology for drilling platform and heave compensation, which is applied to winches, drilling equipment, drill pipes, etc., can solve the problems of low control accuracy, high energy consumption, and high installed power, and achieves improved control accuracy, long wire rope life, and high response. fast effect

Inactive Publication Date: 2014-04-16
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the drawworks compensation device has been carried out abroad, and some products have been launched. The main principle is to realize the active heave compensation function by increasing the motor power on the basis of the traditional drilling drawworks, so it has high installed power and low control accuracy. , the problem of huge energy consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Winch heave compensation device of marine floating drilling platform
  • Winch heave compensation device of marine floating drilling platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Such as figure 1 , 2 As shown, the heave compensation device of the drawworks of the offshore floating drilling platform is arranged symmetrically along the two ends of the drawworks drum 13, mainly including the passive compensation hydraulic motor 2, the active compensation motor 6 and its variable frequency drive system, the differential planetary reducer 8, and the drilling motor 3. Winch shaft 12 and winch drum 13. During installation, the active compensation motor 6 and the passive compensation hydraulic motor 2 are connected with the outer ring gear pinion of the differential planetary reducer 8 through the clutch 7 and the shaft coupling 14, and are arranged along the circumferential direction of the outer ring gear 9; The cycloid reducer 4 and the shaft coupling 14 are connected to the sun gear power input shaft 5 of the differential reducer 8; the planet carrier 10 is connected to the winch shaft 12 through a key. The acceleration sensor 25 is fixedly connec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a novel winch heave compensation device of a marine floating drilling platform. A differential planet gear train is adopted as a transmission mechanism for heave compensation of a winch; power from an active compensation motor and a passive compensation hydraulic motor is input from an outer gear ring; the power from a drilling motor is input by a sun gear; a planet carrier outputs power to drive a winch roller to move; a PLC (programmable logic controller) control unit controls the active compensation motor to drive the outer gear ring of a differential gear reducer to rotate based on the detected platform heave signal; the heave movement of the platform is compensated by driving the roller to rotate forwardly and reversely, and the drilling motor is controlled to drive the sun gear to rotate based on the detected drill pressure change signal so as to achieve automatic drilling movement. A pneumatic hydraulic convertor bears a part of static load of a drilling column through the passive compensation hydraulic motor; and the active compensation motor overcomes the other loads in the movement compensation process so as to reduce the energy consumption of the system and improve the compensation precision.

Description

Technical field: [0001] The invention relates to a heave compensation device for an offshore oil drilling drawworks, which is an electro-hydraulic combined driving device characterized by electro-hydraulic control technology. Background technique: [0002] With the depletion of onshore oil resources, the shallow sea oil development is close to saturation, and it has become an inevitable trend to develop resources into the deep sea. Therefore, marching into the deep-water field, challenging deep-water technology, promoting the localization of major equipment, and improving the level of my country's offshore oil technology and equipment are the material and technical basis for the implementation of going out to ask for oil from the deep sea. Working in deep water conditions has more stringent requirements on all aspects of the drilling rig, and the heave compensation system is one of the essential equipment to ensure the normal operation of the deep-sea floating drilling platf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/09B66D1/22B66D1/08B66D1/12B66D1/54B66D1/48
Inventor 张彦廷黄鲁蒙刘美英盖永革齐明侠
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap