冷41-平14"L"型水平井轨迹优化与控制技术

冷41-平14井受地面条件的限制,靶前位移小,为保证中间套管和完井管柱的顺利下入,剖面设计为“反向造斜-稳斜-降斜-正向造斜-水平段”的“L”型。简要介绍了冷41-平14“L”型水平井的设计概况,详细介绍了该井井眼轨道优化设计原则和设计结果,以及实钻井眼轨迹连续控制技术。该井精确命中A、B靶,两靶处的井斜角、方位角和垂深等达到了设计要求,在A靶实现了软着陆。该井井眼轨道优化设计和井眼轨迹控制技术为类似水平井的井眼轨道设计和轨迹控制提供了有益的借鉴。

L-Shape Well Trajectory Optimization and Control in Well Leng41-Ping14

The Well Leng41-Ping14 can only go through a small displacement to hit its target due to the limited ground area. In order to ensure the success in running intermediate and completion casing, its well path is designed as a "L" shape: reverse buildup section-tangent section-positive buildup section-horizontal section. This paper briefly introduces its well path plan, presents in detail its design way and results and the continuous control techniques of the real well trajectory. Field application shows that both A and B targets are accurately hit with planned inclinations, azimuths and vertical depth, etc. , and the well path achieved soft landing at A target. The well path optimization and control technology applied to this well can supply valuable references to similar horizontal wells.