随着勘探开发不断深入,油气田企业完全成本呈逐年上升趋势,而油气资产折耗在完全成本中占比高达50%左右,降低完全成本的关键在于管控折耗。证实已开发(Proved Developed,PD)储量是油气资产折耗计提基础,主要通过折耗影响完全成本。从油气资产折耗的影响因素入手,深入挖潜折耗、操作成本、油气资产净额、产量等因素与PD储量之间的量化关联关系。通过实例分析,对不同区块开展折耗—PD储量—操作成本敏感性分析,建立折耗定量分配模型,针对性提出具体折耗管控措施,实现折耗计提与储量评估之间的科学有效联动。研究结果为油气田企业超前部署储量评估、管控油气资产折耗,降低完全成本,优化油气资产结构提供了策略建议。

 As the exploration and development in the oil and gas industry intensify, the total costs incurred by oil and gas companies escalate annually. Depletion of oil and gas assets constitutes approximately half of these total costs. Consequently, managing reserves depletion emerges as a critical strategy for cost reduction. Proved Developed(PD) reserves serve as a pivotal factor for calculating the depletion of oil and gas assets and, in turn, influence the overall costs borne by an company through depletion charges. This paper investigates the factors influencing the depletion of oil and gas assets, explores the quantitative relationship between depletion, operational expenses, net oil and gas assets, production levels, and PD reserves. A case study is carried out to perform a sensitivity analysis on the operational costs associated with depletion reserves across various producing blocks, culminating in the formulation of a quantitative depletion allocation model for depletion. Recommendations for controlling depletion are proposed, aiming to foster a scientific and efficient linkage between depletion provision and SEC reserve evaluation. These strategic suggestions are intended to empower oil and gas companies to proactively engage in reserve assessments, manage the depletion of oil and gas assets effectively, diminish total costs, and optimise the asset structure within the oil and gas industry.