5000 m地质钻探绳索取心绞车的研制及应用

Development and application of 5000m wire-line coring winch for geological drilling

本文以“十三五”国家重点研发项目“5000米地质岩心钻机关键技术与装备研制”配套的绳索取心绞车设计为依据,详细介绍了5000 m绳索取心绞车的主体结构、测控系统、主被动一体排绳系统、绞车辅助装置等的设计及现场应用情况,为地质钻探用绳索取心绞车的设计和发展提供了新思路。同时在绞车辅助系统中设有深度检测校正测量装置、张力检测装置、钢丝绳清洁装置、钢丝绳断股断丝检测装置、取心打捞孔内数据采集装置等,用于精确测量孔深和显示打捞器、判别内管总成在井内的工况、清洁钢丝绳表面钻井液、监测钢丝绳断股断丝情况、测量钻孔顶角方位角。本文设计的绳索取心绞车在4007.10 m井深起,在绳索取心工艺中全程快速收/放绳,取得了理想的效果。

In reference to the major national R & D project“the Development of Key Technology and Equipment of5000m Geological Core Drill”,the main structure,the measurement and control system,the integrated active and passive rope arrangement system,and the winch auxiliary device of 5000m wire-line coring winch are introduced in detail,providing a new idea for the design and development of the wire-line coring winch. Notably,the winch auxiliary system is equipped with the depth detection and correction measurement device,the tension detection device,the wire-line cleaning device,the wire-line testing device,the core fishing downhole data acquisition device,etc.,which are used for accurately measuring hole depth and displaying the fishing device,identifying the downhole working condition of the inner tube assembly,cleaning drilling fluid on the surface of steel wire,monitoring the condition of the wire-line,and measuring the azimuth and inclination of the borehole. The wire-line coring winch designed in this paper was tested at depth of 4007.10m with fast retrieving and running in of the wireline for the whole coring process,achieving desired effect.