利用叠加时间函数计算低渗气井动态储量  

Calculation of dynamic reserves of low permeability gas wells with superposition time function

作　　者：谢姗[1,2] 兰义飞[1,2] 何磊[1,2] 艾庆琳[1,2] 袁继明[1,2] 

机构地区：[1]低渗透油气田勘探开发国家工程实验室,710018 [2]中国石油长庆油田分公司勘探开发研究院

出　　处：《低渗透油气田》2016年第2期104-107,共4页

摘　　要：动态储量是气藏开发的物质基础，关系到气藏生产规模、稳产期、井距等开发技术政策的制订和调整。对于长庆气区低渗非均质气藏，存在压力恢复慢、生产制度不稳定、井数多、单井生产方式及生产特征差异大．关井测压和气井生产矛盾大等问题，传统方法评价受到很大限制。在试井叠加原理的基础上．针对长庆气区生产特点和渗流特征，提出了一种利用叠加时间函数评价气井动储量的方法。结果表明，该方法不依赖于图版拟舍、计算相对简单、可有效利用真实波动生产数据，结果较为准确．为全面、准确评价长庆气田气井动储量提供了技术支持。同时为气井配产、工作制度制订及开发井网的部署和调整提供了重要的依据．进一步提高了气田储量动用程度。Dynamic reserves are the material basis of gas reservoir development, and are related to the preparation and adjustment of technical policies such as the production scale, stable production period, and well spacing. For the low permeability heterogeneous gas reservoirs in Changqing gas region, due to many problems such as slow pressure buildup, unstable production system, many wells, large differences among the individual well production modes and production characteristics, severe contradiction between the shut-in pressure measurement and gas well production, using traditional methods to evaluate them will be greatly restricted. On the basis of superimposition principle of well test, a method of evaluating the dynamic reserves of gas wells by using a stacking time function is put forward according to the production characteristics and percolation characteristics of Changqing gas region. The results show that this method does not depend on the plate fitting, and the calculation is relatively simple. The actually fluctuating production data can be utilized effectively and the results are accurate. It provides technical support for comprehensive and accurate evaluation of the dynamic reserves in the Changqing gas region. At the same time, it provides an important basis for the allocation of the gas wells, the formulation of working system and the arrangement and adjustment of development well patterns, and further improves the producing reserves ratio of the gasfields.

关 键 词：叠加时间 叠加原理 动态储量 低渗透气藏 气井 

分 类 号：TE37[石油与天然气工程—油气田开发工程]