板桥地区B28-3断块改建地下储气库可行性探讨

Feasibility of B28-3 fault block in Banqiao area converted into underground gas storage

目前已建的BQ地下储气库群为京津地区的发展发挥了巨大的作用,随着经济的发展,不断增长的天然气需求决定了寻找并建设新储气库的紧迫性。为此该文从地质圈闭特征、储层特征、断层密封性、油气藏流体特征变化等方面综合考虑,评价了BQ地区A储气库东侧B28-3断块改建地下储气库的可行性,认为该区块从地质、老井处理以及地面设施等方面适合建设为地下储气库;利用气藏工程方法,确定该断块改建储气库规划方案,认为该区块改建储气库只需新钻1口定向井,可新建工作气量约0.12×108m3,并可充分利用A储气库的压缩机和地面管线资源,纳入A储气库统一运行管理,节约大量人力、物力、财力的投资。

At present the BQ underground gas storage groups have played a huge role in the development of Beijing and Tianjin area.With economic development, the growing demand for natural gas determines the urgency of finding and building new gas storages.So this paper summarized the feasibility of the B28-3 fault block in the eastern side of A underground gas storage converted into underground gas storage by the comprehensive consideration in the geological trap characteristics, reservoir characteristics, fault sealing and reservoir fluid change characteristics and other aspects.The B28-3 block is suitable for construction of underground gas storage from geology,old wells handling and ground facilities and so on.Using gas reservoir engineering method,the planning scheme of gas storage in the fault block reconstruction is determined.Finally this paper proposed that just driling a directional well we can get new working gas about 12 million cubic meter.And we also can make full use of the compressor and the ground pipeline resources in the A gas storage, incorporate B28-3 fault block into the unified operation of A gas storage management,and save a lot of investment in manpower,material and financial resources.