电磁随钻测量技术及其在固体矿床勘探中应用的可行性分析

Feasibility Analysis on Electromagnetic Measurement While Drilling and Its Application in Solid Mineral Deposit Prospecting

电磁随钻测量(简称EM-MWD)是现代石油钻井中的一项新技术,在国内各大油田的定向钻井中正在推广应用,但使用过程中仍存在石油地层电阻率低,电磁波信号衰减严重、测量深度受限等问题。据此特点,提出了研究设计小直径化EM-MWD系统,将其用于地层电阻率高,钻深浅的固体矿床钻探的设想,以便扬长避短,为电磁随钻测量开辟新的应用领域。分析了电磁随钻测量技术应用于固体矿床勘探的技术要求及可行性,提出了进一步研究工作的建议。

Electromagnetic measurement while drilling （ EM - MWD ） is a new technology in present petroleum drilling, which is applied in directional drilling in big oilfields in China. According to the low resistivity in petroleum formation, serious electromagnetic wave signal attenuation and limited surveying depth in construction process, assumption was put forward to design a small diameter EM - MWD system for solid deposit of high-resistivity formation and shallow drilling depth. The paper analyzed the technical requirements and the feasibility of EM - MWD.