CAJ | 학술논문

在水平井钻进过程中,地质导向技术是保证井眼顺利着陆,并在油层中水平穿行一定距离的关键技术.针对华北油田水平井施工的技术特点,探讨了利用区域、邻井资料以及钻时、气测、岩屑等实时录井资料,结合MWD/LWD参数,较为精确地预测着陆点深度、地层倾角等目的层参数,以及判断钻头着陆和钻头在油层中位置的方法,在现场及时指导钻进方向,实现油层准确着陆、保障井眼轨迹尽可能多地位于油层中.在现场实践中效果显著,对今后的水平井施工具有重要的指导意义.
재수평정찬진과정중,지질도향기술시보증정안순리착륙,병재유층중수평천행일정거리적관건기술.침대화북유전수평정시공적기술특점,탐토료이용구역、린정자료이급찬시、기측、암설등실시록정자료,결합MWD/LWD삼수,교위정학지예측착륙점심도、지층경각등목적층삼수,이급판단찬두착륙화찬두재유층중위치적방법,재현장급시지도찬진방향,실현유층준학착륙、보장정안궤적진가능다지위우유층중.재현장실천중효과현저,대금후적수평정시공구유중요적지도의의.
In the process of horizontal well drilling, geosteering technology is the key to ensure a smooth landing of borehole and walking horizontally a certain distance in the layer. According to the technical features of horizontal wells in Huabei Oilfield, target zone parameters such as landing point depth and layer dip were accurately predicted by combining the real-time logging data such as regional, neighborhood well, drilling time, gas surveying, sample logging with MWD/LWD parameters,. The method can also determine the landing and drill bit place in the reservoir, which can be used in the field to timely guide drilling direction, achieve an accurate landing and ensure more well tracks right in the oil layer. Field practice showed that the technology had a marked effect and was of important guiding significance to the future implementation of horizontal wells.