石油钻采工艺Issue(6)：24-28,5.
SAGD双水平井入靶控制技术
Target-entering control technology for SAGD parallel horizontal well drilling
章敬 1易灿 2张龙 2马立君2
作者信息
- 1. 新疆油田公司开发公司，新疆克拉玛依 834000
- 2. 北京加华维尔能源技术有限公司，北京 100101
- 折叠
摘要
Abstract
Horizontality of horizontal sections and parallelism between horizontal sections of two horizontal wells are two key indexes in SAGD parallel horizontal well drilling. In order to ensure the high quality of these indexes, the deviation angle at the target entry point and the borehole direction have to be effectively controlled. Otherwise, the trajectory control of horizontal sec-tion would become more dififcult and the workload would be increased, which has negative inlfuence upon operation and recovery of crude oil. Based on deriving the range of average build-up rate in target-entering control, the inlfuence factors were analyzed, including build-up rate control, azimuth control and magnetic disturbance. Principle for deciding target-entering deviation angle in SAGD parallel horizontal well drilling and approaches of trajectory control for different conditions were proposed. Theory and practices have proved that it is better for the landing of horizontal well when making the deviation angle in advance appropriately and the position of actual track points are near or a little bit behind that of designed trajectory. The research results have directive signiifcance for target-entering controlling technology in parallel horizontal well drilling and large-scale development of heavy oil reservoir with SAGD.关键词
SAGD/造斜率/水平井/轨迹控制Key words
SAGD/build-up rate/horizontal well/trajectory control分类
能源科技引用本文复制引用
章敬,易灿,张龙,马立君..SAGD双水平井入靶控制技术[J].石油钻采工艺,2013,(6):24-28,5.
