孤家子气藏合理动态储量及动用面积计算
李祯
（中石化胜利油田分公司勘探开发研究院，山东 东营 257000）
摘要： 气藏动态储量的预测是制定开发方案、研究剩余储量挖潜的重要依据。针对孤家子气藏非均质性较强、渗透
率较低、老区地层压力资料缺失等问题，运用流动物质平衡法以及基于井口套压换算推导井底压力的方法，结合孤家子
气藏生产动态及渗流特征，将生产指标曲线分为4 种类型，并对每种类型曲线的特征及形成原因进行描述，从而达到预
测合理动态储量的目的。对区块动用面积进行圈定，后期通过地质建模及数值模拟对计算结果进行验证。计算结果表明，
新的方法具有一定实用性，对以孤家子气藏为代表的老区的有效开发具有一定的指导意义。
关键词： 孤家子气藏；动态储量；流动物质平衡法
中图分类号： TE345      文献标志码： A      文章编号： 2095-0802-(2023)01-0028-03
Calculation of Reasonable Dynamic Reserves and Producing Area of Gujiazi Gas Reservoir
LI Zhen
(SINOPEC Shengli Oilfield Exploration and Development Research Institute, Dongying 257000, Shandong, China)
Abstract: Prediction of dynamic reserves of gas reservoir is an important basis for formulating the development plan of tapping
the potential of remaining reserves. In view of the problems such as strong heterogeneity, low permeability, and lack of formation
pressure data in the old area of Gujiazi gas reservoir, the production index curves were divided into four types by using the flowing
material balance method and the method of deriving bottom hole pressure based on wellhead casing pressure conversion,
combined with the production performance and seepage characteristics of Gujiazi gas reservoir, and the characteristics and
formation reasons of each type of curve were described, so as to achieve the purpose of predicting reasonable dynamic reserves.
The produced area of the block was delineated, and the calculation results were verified by geological modeling and numerical
simulation in the later stage. The calculation results show that the new method is practical and has certain guiding significance for
the effective development of the old area represented by Gujiazi gas reservoir.

Key words: Gujiazi gas reservoir; dynamic reserves; flowing material balance method