BZ25-1低渗透油田压裂水平井参数优化

Parameter optimization of fractured horizontal well in BZ25-1 low permeability oilfield

 钟家峻 廖新武 赵秀娟 徐文江 戚涛 蒋鏖

西南石油大学石油工程学院，四川 成都 610500 中海石油（中国）有限公司天津分公司勘探开发研究院，天津 300452 中海石油（中国）有限公司开发生产部，北京 100010）

School of Petroleum Engineering, Southwest Petroleum University, Chengdu 610500, China Research Institute of Exploration and Development, Tianjin Branch of CNOOC Ltd., Tianjin 300452, China Exploitation and Production Department of CNOOC Ltd., Beijing 100010, China)

 为研究海洋低渗透油田压裂水平井参数，针对BZ25-1油田目前地质、开发特征，应用Eclipse软件建立压裂水平井机理模型，对低渗透压裂水平井参数进行优化。结果表明：BZ25-1油田水平井的水平段最优长度为400 m；水平段最优位置为储层中部；最优压裂裂缝条数为4；最优裂缝半长为90 m。研究结果为类似油田压裂水平井参数优选问题提供了思路和借鉴。

 In order to research the parameters of fractured horizontal well in marine low permeability oilfields, based on the current geology and development characteristics of BZ25-1 Oilfield, this paper takes advantage of Eclipse software to establish the mechanism model of fractured horizontal well. The parameters of fractured horizontal well in marine low permeability oilfield are optimized. Results show that the optimum length of horizontal well in BZ25-1 Oilfield is 400 m; the optimal position of horizontal section is in the middle part of reservoir; the optimal numbers of fractures are 4; the optimal fracture half-length is 90 m. Researches in this paper provide new ideal and reference for parameter optimization of fractured horizontal well in BZ25-1 Oilfield.

10.6056/DKYT201306028