柳赞油田多层砂岩优势渗流通道特征及喉道体积  

Characteristics of Dominant Flowing Channels and Throat Volume of Multi‑Layer Sandstone Reservoirs in Liuzan Oilfield

作　　者：曹同锋[1] 高东华[1] 李占东 王天杨 姜峰 CAO Tongfeng;GAO Donghua;LI Zhandong;WANG Tianyang;JIANG Feng(Research Institute of Exploration and Development,Jidong Oilfield Company,PetroChina,Tangshan,Hebei 063000,China;Heilongjiang Provincial Key Laboratory of Efficient Development of Natural Gas Hydrate,Daqing,Heilongjiang 163318,China;Daqing Oilfield Equipment Manufacturing Group Lishen Pump Co.,Ltd.,Daqing,Heilongjiang 163100,China)

机构地区：[1]中国石油冀东油田分公司勘探开发研究院,河北唐山063000 [2]黑龙江省天然气水合物高效开发重点实验室,黑龙江大庆163318 [3]大庆油田装备制造集团力神泵业有限公司,黑龙江大庆163100

出　　处：《新疆石油地质》2024年第1期53-57,共5页Xinjiang Petroleum Geology

基　　金：河北省自然科学基金(E2023107001)。

摘　　要：陆相油藏储集层非均质性强,长期注水开发容易形成优势渗流通道,导致油井快速水淹,驱油效率降低,开发效果变差。以柳赞油田古近系渐新统沙河街组为例,综合分析测井岩电响应、储集层非均质性、注采特征、储集层孔隙特征等,描述柳赞油田多层砂岩优势渗流通道特征,确定了该区优势渗流通道形成条件,通过建立优势渗流通道喉道体积的计算方法,明确了油藏下一步调驱剂用量,达到了有效封堵优势渗流通道的目的,研究成果可为油田下一步稳油控水提供技术支撑。For continental reservoirs with strong heterogeneity,long⁃term water injection may create dominant flowing channels,which will cause rapid water breakthrough in oil wells,thereby reducing the displacement efficiency and resulting in poor development results.Taking the Paleogene Oligocene Shahejie formation of Liuzan oilfield as an example,the litho⁃electric logging responses,reservoir heterogeneity,injection⁃production performance,and reservoir pore characteristics were analyzed,the characteristics of dominant flowing channels in the multi⁃layer sandstone reservoirs of the oilfield were described,and the conditions for the formation of dominant flowing channels in this area were determined.A calculation method for the throat volume of dominant flowing channels was established.With this method,the amount of profile control agent used in the subsequent operations was clarified to effectively plug the channels.The research results provide a technical support for subsequent oil production stabilization and water control in oilfields.

关 键 词：柳赞油田 沙河街组 砂岩 优势渗流通道 孔隙特征 孔喉半径 喉道体积 稳油控水 

分 类 号：TE357[石油与天然气工程—油气田开发工程]