定边油田TS区域长4+5_(1)^(2)非常规致密砂岩油藏配套开发工艺研究  

Study on Key Matching Technology of Chang 4+5 Unconventional Tight Sandstone Reservoir in Tangshan Area

作　　者：王雷[1] 周国宝[1] 王顺华 Wang Lei;Zhou Guobao;Wang Shunhua(Dingbian Oil Production Plant,Yanchang Oilfield Corp.Ltd.,Dingbian 718600)

机构地区：[1]延长油田股份有限公司定边采油厂,陕西定边718600

出　　处：《石化技术》2023年第7期150-152,共3页Petrochemical Industry Technology

摘　　要：针对定边油田TS区域长4+5_(1)^(2)小层投产油井表现出的初产高、降产快,无稳产期的问题,在研究该小层地质特点的基础上,通过选取地质条件相近的8口井分别从前置液比例、米加砂量、砂比等方面进行了对比试验,结果表明:研究区4+5_(1)^(2)小层合适的前置液比例为80%,排量为2.4m^(3)/min,砂比为10%,米加砂量为13m^(3)/m。随后该工艺进一步在区域内推广,效果较好,为油田同类型油藏下一步开发及调整提供了新思路。In view of the problems of high initial production,rapid production reduction and unstable production of C4+512 sub layer in TS area of Dingbian oilfield,based on the study of geological characteristics of this sub layer,comparative field tests were conducted on 8 wells with similar geological conditions from the aspects of preflush ratio,sand addition amount per meter and sand ratio.The results show that the suitable pre fluid ratio of small layer C4+512 in the study area is 80%,and the drainage rate is 2.4m^(3)/min,10%sand ratio and 13 m^(3)/m of sand.Then,the technology was further popularized in the region,and the effect was good,which provided a new idea for the next development and adjustment of the same type of reservoirs in the oilfield.

关 键 词：C4+5 致密油藏 配套开发工艺 

分 类 号：TE34[石油与天然气工程—油气田开发工程]