非常规油气丛式井平台靶点自动匹配及引导式智能绕障方法  

Automatic target matching and guided intelligent routing method used in unconventional oil and gas cluster wells

作　　者：肖啟福 王锐 范生林 陈宽 肖振华 吴坷 XIAO Qifu;WANG Rui;FAN Shenglin;CHEN Kuan;XIAO Zhenhua;WU Ke(Oil Drilling and Production Engineering Technology Research Institute,CNPC Chuanqing Drilling Engineering Co.Ltd.,Chengdu 610052,Sichuan,China;Exploration Department of PetroChina Southwest Oil and Gas Field Company,Chengdu 610041,Sichuan,China)

机构地区：[1]中国石油集团川庆钻探工程有限公司钻采工程技术研究院,四川成都610052 [2]中国石油西南油气田公司勘探事业部,四川成都610041

出　　处：《石油钻采工艺》2024年第3期280-291,共12页Oil Drilling & Production Technology

基　　金：川庆钻探工程有限公司科研项目“丛式井平台井眼轨迹自动设计与控制软件开发”(编号:CQ2021B-13-3-3)。

摘　　要：为解决丛式井平台井眼轨道设计效率低、难度大的技术难题,切实提高非常规油气丛式井平台设计效率,将丛式井靶点匹配问题抽象为任务分配问题,以KM算法为基础,建立了靶点匹配目标函数,根据井口到靶点的水平位移赋权值确定了匹配次序,形成了井口-靶点自动匹配方法;以A^(*)算法为基础创建引导式启发函数、构建栅栏搜索环境、优化搜索方向,形成丛式井引导式智能绕障方法;总结了丛式井设计策略,开发了设计软件。应用该软件,4井式丛式井平台轨道设计平均耗时8.9 s、6井式平台轨道设计平均耗时9.5 s、8井式平台轨道设计平均耗时36.6 s、大于等于10口井平台轨道设计平均耗时52.5 s;与常规设计技术相比,5~8口井平台设计由原耗时约3 d降至1.2 d,9~13口井由原耗时约6 d降至2.4 d,节省设计时间60%。该方法解决了目前丛式井平台钻井设计耗时长、效率低的难题,为石油行业其他专业智能算法的引用提供参考。To solve the technical problem of low efficiency and difficulty in designing wellbore trajectories for cluster well platforms,and effectively improve the design efficiency of unconventional oil and gas cluster well platforms,the matching problem of cluster well targets are abstracted as a task allocation problem.Based on the KM algorithm,a target matching objective function is established,and the matching order is determined according to the horizontal displacement weighting value from the wellhead to the target,forming an automatic matching method between the wellhead and the target.A guided heuristic function is created based on the A^(*)algorithm,a fence search environment is constructed,and the search direction is optimized to form a guided intelligent obstacle avoidance method used in cluster wells.The design strategy for cluster wells is generalized and the relevant design software is developed.With this software,the average time for designing the track of a 4-wellole cluster well platform on site is 8.9 seconds,the average time for designing the track of a 6-well platform is 9.5 seconds,the average time for designing the track of an 8-well platform is 36.6 seconds,and the average time for designing the track of a platform with 10 or more wells is 52.5 seconds.Compared to conventional design techniques,the time for design of platform with 5-8 wells has been reduced from approximately 3 days to 1.2 days,and the time for design of platform with 9-13 wells has been reduced from approximately 6 days to 2.4 days,showing 60%of design time saved.The conclusion and suggestion have solved the problem of long drilling design time and low efficiency in cluster well platforms,providing reference for the application of intelligent algorithms in other professional fields in the petroleum industry.

关 键 词：非常规油气资源 丛式井平台 井口-靶点匹配 KM算法 井眼轨道设计 路径寻优算法 A^(*)算法 

分 类 号：TE22[石油与天然气工程—油气井工程]