东海致密气藏压裂增产开发模式的经济有效性评价  

Economic evaluation of hydraulic fracturing for tight gas reservoirs in the east China sea

作　　者：曹冰 李小凡 高红艳 单理军 林然[2] CAO Bing;LI Xiaofan;GAO Hongyan;SHAN Lijun;LIN Ran(Shanghai Branch,CNOOC,Shanghai 200050,China;State Key Laboratory of Oil-Gas Reservoir Geology&Exploitation,Southwest Petroleum University,Chengdu Sichuan 610500,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200050 [2]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《山西化工》2020年第4期42-46,共5页Shanxi Chemical Industry

基　　金：“十三五”国家科技重大专项“东海深层低渗——致密天然气勘探开发技术”(2016ZX05027-003);中海油综合科研项目“宁波气田群一期致密气藏产水特征及储层改造技术优化研究”。

摘　　要：以东海X致密气藏为目标,综合采用气藏工程数值模拟方法和油田开发经济评价方法,首先以收益增幅为目标函数对水力压裂的裂缝参数进行了优化模拟;在确定压裂水平井段长度、裂缝间距和裂缝长度基础上,以财务内部收益率为有效开发经济门限,计算得到实现经济开发的储层综合品质和累产气量低限值;通过对比压裂井增产潜力和经济开发低限条件,确定东海X致密气藏具有实施压裂增产开发模式的经济有效性。研究成果对海上低渗致密储层实施压裂增产开发可行性研究提供了理论方法,也对加快海上低渗致密储层开发进程具有重要现实意义。Targeting on the DH-X tight gas reservoir,the numerical simulation and economic evaluation of reservoir development are conducted successively.On the basis of optimal horizontal well length,hydraulic fractures spacing and length,taking the internal rate of return as the economic threshold for effective development,the low limits of reservoir comprehensive quality and cumulative gas production for economic development are calculated.By comparing the stimulation potential of fracturing wells with the low limit above,the economic effectiveness of hydraulic fracturing in DH-X tight gas reservoir is validated.This research provides not only an application method to evaluate the economic effectiveness of hydraulic fracturing in offshore tight reservoirs,but also an important theoretical basis to facilitate the development of offshore tight reservoirs.

关 键 词：东海 致密气藏 水力压裂 开发模式 经济有效性 财务内部收益率 

分 类 号：TE34[石油与天然气工程—油气田开发工程]