CAJ | 학술논문

由于井眼轨迹不确定性的存在，要实现救援井与事故井的连通必须借助相应的探测定位工具，因此电磁探测定位系统的研究对于救援井方案设计及作业具有重要意义。研究分析了电磁探测定位系统的基本原理，分析了电磁探测定位系统事故井套管汇集电流计算方法及其流动分布特征；研究了救援井与事故井之间相对距离及相对方位的计算方法；结合电磁探测定位系统的实际应用，研究分析了事故井套管参数、切入角、井斜角、地层等参数对电磁探测定位系统测量效果及应用的影响；以电磁探测定位系统研究分析为基础，完成了南海某超深水井救援井设计中测距及连通相关工作。可以为救援井电磁探测定位系统研制提供相应的理论基础，并为救援井电磁探测定位系统在救援井设计、作业中的应用提供参考。
유우정안궤적불학정성적존재，요실현구원정여사고정적련통필수차조상응적탐측정위공구，인차전자탐측정위계통적연구대우구원정방안설계급작업구유중요의의。연구분석료전자탐측정위계통적기본원리，분석료전자탐측정위계통사고정투관회집전류계산방법급기류동분포특정；연구료구원정여사고정지간상대거리급상대방위적계산방법；결합전자탐측정위계통적실제응용，연구분석료사고정투관삼수、절입각、정사각、지층등삼수대전자탐측정위계통측량효과급응용적영향；이전자탐측정위계통연구분석위기출，완성료남해모초심수정구원정설계중측거급련통상관공작。가이위구원정전자탐측정위계통연제제공상응적이론기출，병위구원정전자탐측정위계통재구원정설계、작업중적응용제공삼고。
Due to uncertainties of wellbore track, appropriate detection and location tools must be used to connect the relief well and the accident well. Thus, the research of electromagnetic detection and location system is important to the design and operation of relief wells. This paper studies the basic principle of electromagnetic detection and location system (EDLS) and analyzes the calculation method of casing collection current in accident wells using the EDLS and its distribution characteristics; the paper also investigates the calculation methods of relative distance and relative direction between the relief well and the accident well; in combination with the practical applications of the EDLS, the effects of casing parameters, cutting angle, hole drift angle, and formation and other parameters in the accident well on the measurement effects and applications of the EDLS are analyzed; building on the analysis of the EDLS, the distance measurement and connection in the design of a super deepwater relief well in the South China Sea is ifnished. This paper can provide a theoretical basis for the development of EDLS for relief wells and offer a reference for the application of EDLS in the design and operations of relief wells.