SL油田H135断块注水能力分析  

Analysis on Water injection capacity of H135 Fault Block in SL oilfield

作　　者：王丹 李天月 樊毅龙 WANG Dan;LI Tian-yue;FAN Yi-long(Xi’an Shiyou University,Xi’an Shaanxi 710000,China;PetroChina Changqing Oilfield No.2 Oil Production Plant,Xi’an Shaanxi 710000,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710000 [2]中国石油长庆油田第二采油厂,陕西西安710000

出　　处：《辽宁化工》2022年第2期272-276,共5页Liaoning Chemical Industry

摘　　要：SL油田H135断块属于低渗透储层,早期采用天然能量开采,但由于地层能量的降低,采收率迅速下降。为了提高低渗断块的开发效果,对油田开始实施注水措施,通过几年的注水开发,区块的日产油逐渐减少,采出原油的含水率也逐渐上升,所以需要系统地对该断块的注水能力进行研究分析,为油田后续开发提供合理的依据。对研究区的开发现状进行动态分析,包括产能分析、递减规律研究、注水见效分析、注水强度和注水难易分析;再运用油藏工程等方面的理论和技术,对研究区的含水率上升率、水驱指数、存水率、启动压力、吸水指数、注水倍数等指标对注水效果的影响进行评价。The H135 fault block in SL oilfield is a low permeability reservoir.Natural energy was used in the early stage of exploitation.However,due to the decrease of formation energy,the recovery efficiency decreased rapidly.In order to improve the development effect of low permeability fault-block,so oilfield water injection measures were used,through years of water flooding development,daily oil production in the block gradually reduced,the moisture content of produced oil also gradually rose.Therefore,it is necessary to systematically study and analyze the water injection capacity of the fault block,so as to provide a reasonable basis for the subsequent development of the oilfield.In this paper,dynamic analysis of the development status of the study area was carried out,including productivity analysis,decline law study,water injection effectiveness analysis,water injection intensity and water injection difficulty analysis.Then the influence of water cut increase rate,water flooding index,water retention rate,starting pressure,water absorption index,water injection multiple and other indicators on the water injection effect in the study area was evaluated by the theory and technology of reservoir engineering.

关 键 词：H135断块 注水能力 注水难易 注水效果 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]