页岩气一体化开发钻井投资优化分析方法研究

中国页岩气大规模开发处于起步阶段,钻井计价方法不够科学是一个比较突出的钻井投资优化管理问题。研究提出一套"计价方法一体化+标准井管理"的钻井投资优化分析方法。计价方法一体化就是建立满足油气勘探开发项目建设全过程管理需要的钻井工程计价方法体系,前提是需要建立统一规范的钻井工程工程量清单计算规则、钻井工程造价项目构成、钻井工程全过程计价标准体系。标准井管理是建立若干个标准井工程,用于科学投资决策和钻井生产组织,主要表现为6种作用。上述方法用于中国石油2021—2030年页岩气发展专项规划的开发井投资测算和降本增效优化分析,介绍了钻井生产力水平分析和预算定额、概算定额、概算指标、估算指标、参考指标的编制以及钻井投资测算方法和结果。

Research on optimization analysis methods of drilling investment in integrated development of shale gas

Large-scale development of shale gas in China is at the initial stage.The unscientific valuation method is a big problem of optimization management of drilling investment.This paper proposes a set of optimization analysis methods of drilling investment,as“valuation method integration+standard well management”.The valuation method integration is to establish a valuation method system for drilling engineering to meet the needs of the whole process management of oil and gas exploration and development projects.The premise is to establish unifi ed and standardized calculation rules of bill of quantities for drilling engineering,cost composition of drilling engineering projects and valuation standard system of the whole process of drilling engineering.Standard well management is to establish several standard well projects for scientifi c investment decision-making and drilling production organization.There are 6 main functions.The abovementioned methods were used in the calculation of development well investment and the optimization analysis of cost reducing and benefi t increasing for CNPC's special planning for Shale gas development in 2021—2030.This paper introduces the analysis of drilling productivity level,preparation of budget quotas,rough calculation quotas,rough calculation indicators,estimation indicators,reference indicators,and the methods and results of drilling investment calculation.