延长油田南沟区块开发历史数据恢复及应用  

Restoration and application of historical data of the Nangou block in Yanchang oilfield

作　　者：孙来喜[1,2] 袁少民[3] 邓虎成[2] 李丽[2] 王博[4] 

机构地区：[1]油气藏地质与开发工程国家重点实验室西南石油大学,四川成都610059 [2]成都理工大学,四川成都610059 [3]中油大庆油田有限责任公司,黑龙江大庆163712 [4]中油长庆油田分公司,陕西西安710018

出　　处：《特种油气藏》2012年第5期115-119,157,共5页Special Oil & Gas Reservoirs

基　　金：教育部博士点基金"断层共生裂缝形成机理研究"(20105122120006)

摘　　要：延长油田南沟区块开发过程中主要记录了部分井的初期月产油量、现阶段日产油量和累计产油量数据,缺乏产水、压力及投产时间等部分数据,地下储量动用程度及压力场不明,给后期开发调整带来困难。依据油藏弹性能量开发递减规律,按照阿尔普斯递减模型,将各井累计产油量劈分到历史阶段,再利用油藏数值模拟,采取定产油量方法进行参数拟合、确定产液量,从而确定地层压力。通过部分资料井的检验证明恢复历史数据的有效性。利用恢复的历史动态数据和数值模拟剩余油分布,部署优化油藏开发方案,达到提高油藏开发效果目的。The historical data documented in the production process of the Nangou block in Yanchang oilfield mainly include initial monthly oil production,present daily oil production and cumulative oil production of part of the wells.There is a lack of water production,pressure and production time,and the producing degree of reserves and pressure field are unknown,thus bringing difficulty to later life development and modification.The cumulative oil production of each well is split to historical stages based on the production decline law of reservoirs developed by elastic energy and Alps decline model.Reservoir simulation is conducted to match parameters and to determine mass production and formation pressure by using quantitative oil production method.The validity of restored historical data has been verified by information wells.The restored historical data and remaining oil distribution based on numerical simulation are employed to optimize reservoir deployment plan and improve development efficiency.

关 键 词：历史数据恢复 数值模拟 地层压力 剩余油 井网优化 延长油田 

分 类 号：TE311[石油与天然气工程—油气田开发工程]