Steam-assisted gravity drainage technology enhancement

Thermal Methods for Enhanced Oil Recovery: Laboratory Testing, Simulation and Oilfields Applications 2017

Durkin, S.^1 ; Menshikova, I.^1

Department of Geology, Oil and Gas Production and Pipeline Transportation, Ukhta State Technical University, Ukhta, Russia^1

关键词: Geological heterogeneities;    Horizontal injectors;    Horizontal section;    Hydrodynamic model;    New technologies;    Production wells;    Steam-assisted gravity drainages;    Technology enhancements;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/155/1/012009/pdf
DOI  :  10.1088/1755-1315/155/1/012009

来源: IOP

【 摘 要 】

A hydrodynamic model of a region of Yaregskoye heavy oilfield was build. The results of the simulation have shown that injection capacity along the wellbore of a horizontal well is not uniform. It is determined by the geological heterogeneity of the formation. Therefore, there is importance of enhancing SAGD technology for Yaregskoye oilfield. A new technology was created. The efficiency of the technology is proved by numerical modelling. Horizontal injector and two-wellhead production wells penetrate the formation. Horizontal sections of the wells are located one above the other in the payzone. Wells are divided into two sections. Those sections work simultaneously and independently of one another. This technology allows to increase oil recovery of the oilfield.