摘要
油田(尤其低渗透油田)开发进入中后期,增产挖潜的难度不断加大,仅靠注水开发已很难提高油藏采收率,微生物驱油是一项科技含量高、发展迅猛的新技术。优选微生物WA、WB,按照设计要求对低渗透油区4个注水井进行了现场注入施工试验。结果表明:对低渗透油区4个注水井实施微生物复合驱油技术后,均见到较为理想的不同程度增油效果;油井含水率逐月下降,且下降幅度越来越大;较好地完成了井组日增油1.6 t以上,综合含水率下降7.5%的既定目标。
As the development of oilfield(especially low permeability oilfield)has entered the medium and later periol,it is increasingly difficult to increase production and tap potential.Relying on waterflooding extraction alone,enhancing oil recovery has been difficult.As a new technology,MEOR is high-tech and rapidly developing.According to design requirements,we optimized and injected microbe WA、WB in four water injection wells by the live agent test,and can help increasing perfectly oil production at different levels.The moisture content of oil wells are seeing monthly declines,and the decline rate is bigger and bigger.The test is better to complete fixed targets that the daily oil production enhancement of oil well group is above 1.6 t and the moisture content reducement of oil well is 7.5%.
作者
张冬林
胡继强
曹进
李刚
王丹丹
岳柳青
Zhang Donglin;Hu Jiqiang;Cao Jin;Li Gang;Wang Dandan;Yue Liuqing(Xiasiwan Oil Production Plant of Yanchang Petroleum Crop.Ltd.,Ganquan 716100,China;Research Institute of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi'an 710065,China;The Fifth Branch of Pipeline Transportation of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi'an 710600,China)
出处
《科学技术创新》
2022年第35期5-8,共4页
Scientific and Technological Innovation
关键词
低渗透油田
微生物驱油
增油
降低含水率
low permeability oilfield
MEOR
oil production enhancement
reducing moisture content
