40CZ钻机井架底座设计及有限元分析

发布时间：2018-04-10 15:22

本文选题：车载钻机 + 井架　；参考：《西南交通大学》2015年硕士论文

【摘要】：车载钻机具有结构重量轻、安装和拆卸方便、操作简单安全、占地面积小、移运性方便的优点,是替代同类模块钻机及进口钻修机的理想设备,市场前景十分广阔。然而,由于受运输条件和承载能力的限制,传统的车载钻机一般用于3000米及以下的浅井。但是,适应中深井的大吨位车载钻机的市场需求越来越多,井架、底座作为钻机的重要组成部分,承受起下钻,下套管及其它作业产生的载荷以及风载,自重,设备重量等载荷,受力工况十分复杂。其结构设计及计算关系到整台钻机的性能及可靠性,因此,对其进行有限元建模及结构分析具有重要意义。ZJ40CZ钻机井架、底座、天车是在ZJ30CZ钻机井架、底座、天车的基础上发展而来,井架为前倾式、有绷绳、可伸缩、双节套装式桅型井架。井架立起和放倒由连接在车体大梁和井架下体上的两个双作用变辐三级起升液缸来实现。天车与游车滑轮的钢丝绳采用顺穿法,天车附带避雷针、航标灯、辅助滑轮等装置。底座分为上、中、下三层以及坡道、逃生滑道、梯子等附件。底座采用低位安装、平行四边形整体起升的结构。竖立井架后,用钻机绞车自身动力(或起重机)将底座顶层钻台部分(包括台面设备)整体起升到工作位置。为适应更大的承载能力和钻井深度,井架、底座、天车的有效高度和型材大小都大于ZJ30CZ钻机井架、底座、天车。本钻机的设计参数按照GB/T23505《石油钻机和修井机》确定,最大额定静钩载为2250KN,设计工况,包括工作工况1、工作工况2、预期、非预期、起升、运输等工况。设计计算主要依据API 4F《钻修井用井架底座规范》及AISC《美国钢结构手册》。采用建筑钢结构有限元分析软件SAFI对底座、井架、天车结构进行整体受力分析计算,包括起升下放、工作工况、不同等级的风速、不同载荷组合工况等进行详细受力计算及分析,包括强度与刚度校核,确保该钻机达到预期的性能指标,满足钻机的总体设计要求。为该钻机的可靠性提供了理论依据,为钻机进行API认证提供了文件支撑,同时为应力试验提供了对比数据,为地基的选择,井架起升油缸的选型等提供了数据支撑。通过对不同直径绷绳对井架在各种工况下变形的影响,为绷绳的选择提供了理论依据。
[Abstract]:Truck drilling rig has the advantages of light structure, convenient installation and disassembly, simple and safe operation, small area and convenient mobility. It is the ideal equipment to replace the similar modular drilling rig and imported drilling machine. The market prospect is very broad.However, due to the limitation of transportation conditions and carrying capacity, the traditional truck rigs are generally used in shallow wells of 3000 meters and below.The equipment weight is equal to the load, the stress condition is very complex.Its structural design and calculation are related to the performance and reliability of the whole rig. Therefore, it is of great significance to model and analyze the structure of the whole rig by finite element method. ZJ40CZ rig Derrick, base and crane are in the Derrick and base of ZJ30CZ drilling rig.Based on the development of the crane, the Derrick is forward-tilted, with taut rope, telescopic, double-section suit mast Derrick.Derrick rise and fall are realized by two double action variable spoke three stage lifting cylinders connected to the body girder and the lower part of the Derrick.The wire rope of skis and trolley pulley adopts the following method. The crane has lightning rod, beacon lamp, auxiliary pulley and so on.The base is divided into upper, middle and lower levels, as well as ramps, escape slides, ladders, and so on.The base adopts the low position installation, parallelogram integral lifting structure.After the Derrick is erected, the top floor part of the base (including countertop equipment) is lifted to the working position by the rig winch itself (or crane).In order to adapt to greater bearing capacity and drilling depth, the effective height and profile size of Derrick, base, crane are larger than that of ZJ30CZ rig Derrick, pedestal and crane.The design parameters of the rig are determined according to GB/T23505 < Oil drilling rig and workover Machine >. The maximum rated static hook load is 2250KN. The design conditions include working condition 1, working condition 2, expected, unexpected, lifting, transportation and so on.The design and calculation are mainly based on API 4F < Derrick Base Specification for drilling and workover > and AISC < American Steel structure Manual.The finite element analysis software SAFI of building steel structure is used to analyze and calculate the overall force on the base, Derrick and crane structure, including lifting down, working condition, wind speed of different grades.Detailed calculation and analysis of different load combination conditions are carried out, including strength and stiffness check to ensure that the rig meets the expected performance index and meets the overall design requirements of the rig.It provides a theoretical basis for the reliability of the rig, a document support for the API certification of the rig, a comparative data for the stress test, and a data support for the selection of the foundation, the selection of the Derrick hoisting cylinder, and so on.The influence of different diameters on the deformation of Derrick under various working conditions provides a theoretical basis for the selection of strands.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE92

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