数值试井在克拉2气田开发中的应用

针对克拉2气田异常高压气藏渗流特点,结合动静态分析和气藏工程方法,选择数值试井的有效井网,根据井组区域构造、有效厚度及孔隙度等静态数据和相渗及高压物性参数等岩石和流体数据建立数值试井所需的气藏模型;再采用各井生产史建立井模型;结合克拉2气田2007—2008年井口测试数据及2008年9—10月有缆测试数据,运用数值试井技术进行了克拉2气田压力恢复资料解释及生产动态预测,得到了反映储层真实地质特征与生产动态的物性参数,形成了适合于异常高压气田的资料解释技术与动态预测方法。

Application of Numerical Well Test in Development of Kela 2 Gas Field

According to abnormal pressure feature of Kela 2 gas field, dynamic and static analysis, gas reservoir engineering and valid well pattern of numerical well test, we built up the gas reservoir model required for numerical well test, in combination of static data of regional structure of gas well groups, valid thickness and porosity, parameters of coherence and high pressure physical property, and fluid data. We also setup the model of gas well based on production history of individual well. Data of pressure recovery interpretation and performance prediction of gas production for Kela 2 gas field was done by using numerical well test. Then the physical property of reservoirs which reflected the real geologic feature and dynamic performance of production was gotten. And the data interpretation and performance forecasting method was developed.