中原油田高压注水诱发的油水井套管损坏原因分析  

Causal analysis of casing damage in oil-water wells induced by oil field development in Zhongyuan oil field

作　　者：刘伟[1,2] 李红南[3] 安天下[3] 

机构地区：[1]中国石化中原油田采油二厂,河南濮阳457532 [2]中国科学院地质与地球物理研究所,北京100029 [3]中国石油大学(华东)地球资源与信息学院,山东东营257061

出　　处：《中国地质灾害与防治学报》2010年第2期94-99,共6页The Chinese Journal of Geological Hazard and Control

基　　金：中国石油化工股份有限公司重点科技攻关项目(P04022)部分成果

摘　　要：中原油田高压注水开发35年,套管损坏严重,严重的影响了油田的开发效果。据研究,油田水井套管损坏主要有错断、变形及破漏等三类,平面上主要分布在断层发育区、高地层水矿化度区、泥岩层和盐膏层发育区,剖面上主要分布在盐膏层段和主力生产井段。提出断层活动、地应力非均质演化、盐岩蠕变、油田开发历程和开采方式及油气流场、化学场演化是中原油田套损的主要控制因素,建立油田油藏油井多参数动态模式,优选与油藏模式匹配的开采方式及增产措施,改造套管动力学环境和化学环境将能防治套损地质灾害的发生。Casing damages are severe during the 35 years of high pressure waterflood development in Zhongyuan oil field,which have a seriously effect on oil field development.The study indicates that casing damage has three types including break,deformation and leak,and the wells distribute laterally in the region of fault development,hypersalinity,thick mud and gypsum,vertically in salt-gypsum layer and production interval.The thesis points out that the control factors are fault activity,heterogeneous geo-stress evolvement,rock salt creep,long-term development history,mining mode and development of oil-gas flow field and chemical field,establishes dynamic pattern of parameters of oil field and well,optimizes exploitation model matching with reservoir pattern,stimulation treatment,and reforms casing dynamics environment and chemical environment to control geological disaster.

关 键 词：油田开发 套管损坏 地质灾害 断裂活动 盐岩蠕变 中原油田 

分 类 号：TE931[石油与天然气工程—石油机械设备]