东得克萨斯油田开发措施分析及几点认识  

The Development Measures and Understanding of the East Texas Oilfield

作　　者：刘新[1] 安飞[2] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [2]大庆油田有限责任公司海拉尔石油勘探开发指挥部,黑龙江大庆163712

出　　处：《中外能源》2011年第2期44-50,共7页Sino-Global Energy

摘　　要：东得克萨斯油田在美国甚至世界石油工业中都具有重要地位。该油田从1930年投产以来,生产大致可分为上产、递减、衰竭3个阶段。上产阶段主要采取含水带强水驱、产出水回注等生产措施以及政府限产等保护政策;递减阶段以注水采油为主要开发技术,辅以强化采液、补修套管、堵漏、酸化、压裂等增产措施,期间优化井网和加密钻井是油田取得高采收率的重要因素之一;进入衰竭阶段后,油田年产量递减速度加快,2000年全面水淹后年产量降至121.8×104t,含水在1993年突破了93%,这期间主要采取了多开低产井和EOR采油技术。东得克萨斯油田和大庆油田同属世界级的大型非均质多层高含水砂岩油田,开发措施和开发思路有很大共性,在几十年开发中都采取了注水开发、强化采液、增产措施、加密钻井及非混相注气驱、聚驱、水平井注水采油、EOR等措施。东得克萨斯油田目前已进入开发晚期,但仍在可持续开发,并能够实现"百年油田"的发展战略,这对大庆油田有一定的参考意义。The East Texas oilfield has played an important role in U.S.A even in the world oil industry.Found in 1930,it has experienced three stages： production increment,decline and depletion.At the first stage,some measures for production was taken,such as strong water drive at the water bearing zones and reinjection of the produced water,and measures of limited production for protection by the government as well.At the decline stage, water flooding was the main technology, and forced fluid withdrawl, casing repairing, plugging, acidizing,fracturing and other stimulations were the auxiliary technologies.During this period,well pattern optimization and infill drilling were the important factors for high recovery efficiency in the oilfield.After the oilfield entered the depletion stage,yearly output of the oilfield declined rapidly to 121.8×10 4t in 2000 with water flooding and the water cut was 93% in 1993.Low producing well and EOR was developed in this period. The East Texas oilfield and Daqing oilfield are both world-class and large-scale sandstone reservoir,with the characteristics of high water cut,heterogeneity and multiple layers.So their development measures and ideas would be much similar.Currently,East Texas oilfield is still sustainable developed even at late development stage,which can provide some good references to Daqing oilfield for the development strategy of ＂One-Cen- tury Development Oilfield＂.

关 键 词：东得克萨斯油田 注水开发 加密钻井 提高采收率 高含水 大庆油田 

分 类 号：F416.22[经济管理—产业经济]