EOR Screening for Ekofisk

摘要

An investigation of alternative EOR processes having potential application in the giant Ekofisk chalk field is presented. Technical feasibility, process readiness, oil recovery potential, and related uncertainties and risks of five selected EOR processes, namely hydrocarbon (HC) WAG, nitrogen (N_2) WAG, carbon dioxide (CO_2) WAG, air injection and microbial EOR (MEOR), are assessed for possible application at Ekofisk. The objective of the screening study was to evaluate and rank the EOR alternatives and to select the most attractive process(es) on which to pursue further work toward possible field pilot testing. The focus of the ppaer is on the technical assessment of the relative of identifying critical operational and logistical considerations for implemenation of an EOR processes in the offshore North Sea operating evnvironment.