近钻头测量仪在渤海油田的应用

Application of near bit measuring instrument in Bohai Oilfield

使用螺杆钻具导向组合钻水平井面临着因测点距离钻头远而造成的预测井底和判断油层困难、着陆不确定性大的难题,中海油服自研近钻头测量仪NBIG(Near-Bit Inclination and Azimuth Gamma Measurement)较好的解决了此难题。2019年NBIG在渤海油田某套管开窗侧钻中短曲率半径水平井首次成功作业,并完成三口井作业,本文介绍了近钻头测量仪现场应用流程和经验教训,指导后续作业,促进近钻头测量仪的进一步推广应用。

It is difficult to predict the bottom of the well,judge the reservoir and land in the horizontal well because the measuring point is far away from the bit,Nbig (near bit intersection and azimuth gamma measurement) has solved this problem well.In 2019,nbig was first successfully operated in a horizontal well with short radius of curvature and three wells were completed.This paper introduces the field application process and lessons of near bit measuring instrument,Guide the follow-up work and promote the further application of near bit measuring instrument.