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西安石油大学本科毕业设计(论文）Φ178旋转导向钻井工具机械结构设计摘要:旋转导向钻井技术是石油工业工程技术领域的关键技术之一，得到了石油钻井工程界的极大关注，发挥着越来越重要的作用，主要应用于水平井、大位移井、超深井、三维多目标井等复杂结构的井作业。本文综述了旋转导向钻井工具的国内外现状，闸明了在我国发展旋转导向钻井技术的重要性和必要性，介绍了它的工作原理及结构组成，指出了研制该工具的主要技术特点。调制式旋转导向钻井工具的导向执行机构是靠内外泥浆液压力差驱动的原理来实现的，这是旋转导向钻井工具能否正常工作的关键。所以，对其液压盘阀分配系统进行分析计算，及其在井下不同工况下所受的力进行分析计算。分析了旋转导向钻井系统的井下钻井工具系的偏置方式和导向方式，完成了导向执行机构机械部分的设计。关键词:旋转导向钻井工具；机械结构设计；压力差；西安石油大学本科毕业设计(论文）Φ178RotarySteerableDrillingToolMechanicalStructureDesignAbstract:Inmanyoilindustryengineeringfiledkeytechnologies,rotarysteerabledrillingtechnologyisonethathasbeenpaidmuchattentiontoinrecentyearsandexhibitsmoreandmoreimportanceinoildrillingindustry,mainlyusedinhorizontalwell,extendedreachwell,ultra-deepwell,3Dmulti-targetwellthecomplexstructureofmulti-lateralwellsinwellsoperating.Thispaperreviewsthedomesticandinternationaldrillingtoolstatus,illustratesthedevelopmentofrotarysteerabledrillingtechnologyoftheimportanceandnecessitytointroducetheworkingprincipleanditscomposition,thatthedevelopmentofthemaintechnicalfeaturesofthetool.Modulatedrotarysteerabledrillingtooldrivenbytheexecutingagencyisthepressuredifferencebetweeninsideandoutsidethemudfluid-drivenprinciplestoachieve,whichiswhetherthedrillingtooltoworkthekey.Therefore,itshydraulicdiscdistributionsystemanalysisandcalculation,anditsdifferentworkingconditionsinundergroundanalyzingandcalculatingtheforce.Analysisofdownholerotarysteerabledrillingtooldrillingsystemorientationbiasway.Completeguidethedesignofmechanicalpartsoftheimplementingagencies.Keywords:Rotarysteeringdrillingtool；Mechanicalpartsdesign；Pressuredifference西安石油大学本科毕业设计(论文）I目录第一章绪论.......................................................................................................................11.1本论文研究的目的、价值和意义......................................................................11.2国内外研究状况及趋势......................................................................................21.2.1国内旋转导向钻井系统研究与发展现状.......................................................21.2.2国外旋转导向钻井系统研究与发展现状.......................................................31.3毕业设计论文的主要内容..................................................................................9第二章旋转导向钻井装置的方案对比分析.................................................................102.1旋转导向钻井工具的分类................................................................................102.2三种旋转导向钻井系统的结构特征和对比....................................................102.2.1AutoTrak旋转导向钻井系统......................................................................102.2.2PowerDrive旋转导向钻井系统..................................................................112.2.3三种不同旋转导向方式对比.........................................................................142.3旋转导向钻井方案的选择................................................................................152.4旋转导向钻井工具工作原理..............................................................................15第三章旋转导向钻井工具机械部分设计.....................................................................183.1导向机构的导向原理及组成............................................................................183.2上盘阀高压孔圆弧角的确定............................................................................223.3柱塞的相关计算................................................................................................223.4巴掌结构............................................................................................................233.5盘阀泥浆过流的有效面积计算........................................................................243.6巴掌销钉的强度校核........................................................................................263.7挡块上的螺钉强度校核....................................................................................263.8盘阀连接螺钉强度校核....................................................................................273.9液压盘阀系统的设计........................................................................................273.9.1上盘阀的结构设计计算.................................................................................273.9.2上盘阀传动轴的校核.....................................................................................303.9.3下盘阀的设计.....................................................................................................313.9.4上下盘阀导通时间计算.....................................................................................323.10盘阀加压弹簧的设计......................................................................................343.11工具体的校核....................................................................................................35第四章旋转导向钻井工具经济性评价.........................................................................384.1旋转导向工具的加工成本..............................................................................3884.2旋转导向工具的经济效果................................................................................38第五章结论及展望.........................................................................................................40西安石油大学本科毕业设计(论文）II5.1结论................................................................................