YSXD18地面电磁波随钻测量系统的研制与应用OA

Directional drilling has been widely used in the fields of resource exploration,geological disaster treatment and engineering construction,but the conventional measurement while drilling(MWD)method presents poor applicability and high cost in working conditions without drilling fluid such as air drilling and foam drilling.To solve the difficulties in real-time measurement and transmission of downhole parameters,the authors developed YSXD18 surface electromagnetic wave measurement while drilling system.Without relying on wired drill pipes and being affected by drilling fluid,this system features high measurement accuracy,long operating time,wide applicability and low comprehensive cost.The reliability verification is carried out through high and low temperature tests,vibration tests and field drilling tests.The results showed that the system operates stably with measurement accuracy meeting design requirements.It can realize real-time acquisition and stable transmission of parameters such as inclination,azimuth and tool face angle,and achieve precise trajectory control.The successful development of this system fills the application gap of MWD technology under special drilling conditions,and can provide efficient,economical and reliable technical support for directional drilling engineering.It has practical engineering value and promotion significance.