用压力因数法确定萨一组合理注水强度界限  

Reasonable establishment of water-injection intensity with pressure coefficients

作　　者：马景民[1] 

机构地区：[1]大庆油田有限责任公司第三采油厂地质大队,黑龙江大庆163113

出　　处：《大庆石油学院学报》2007年第3期38-40,49,共4页Journal of Daqing Petroleum Institute

摘　　要：为进一步改善薄差油层的开发效果,控制萨一组套管损坏速度,依据注水井落差试井基本原理,推导出多组合油层压力因数的数学关系式.利用所导公式确定出I类注水层段、II类注水层段避免形成高压和超高压油层的合理注水强度界限分别为13.0m3/(d·m)和9.0m3/(d·m).试验证实,按照合理注水强度界限值对异常高压层控制注水,能有效控制异常压力层的产生,利于保护套管.In order to further improve developing efficiency of thin oil-bearing sand and the control of casing-damaging, the mathematical relationship of multi-combination oil-bearing sand pressure coefficient is derived based on the principle of interpretation of well test of water-injection well throw. To avoid high pressure and extra high oil bearing sand in class A water injection interval and class B water injection interval, reasonable water injection intensity critical value is ascertained ( 13.0 m3/(d·m)and 9.0 m3/(d·m)) . We can control the formation of extra high pressure interval and prevent casing from damaging by controlling water injection intensity in high pressure interval with reasonable critical value of water injection intensity, verified by field site experiment.

关 键 词：多组合油层 压力因数 注水强度界限 套管防护 萨一组 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]