Study On Heat Production Enhanced Oil Recovery Technology In Fuyu Oilfield

According to reservoir characteristics and existing problems in the development in Fuyu oilfield, based on detailed theoretical studies, thermal recovery technology for the development of oil with low viscosity has been introduced successfully. Good achievements have been reached after carrying out numerous field tests in Fuyu oilfield. In particular, after great efforts in several years, thermal recovery technology is getting maturing and provides basis for the improvement of thermal recovery technology in the future.1. Map out thermal recovery schemes which are suitable for Fuyu oilfield on the basis of theoretical studies and simulation tests2. Based on theoretical studies and simulation tests, thermal recovery technology is suitable for EOR development in Fuyu oilfield.3 .Further optimize steam stimulation, steam oil displacement technology schemes, efficient development in reservoirs which are difficult to recover has been achieved after adopting thermal recovery technology.4. Provide important theoretical and practical considerations for EOR technology in combination with water flooding and thermal recovery in order to completely and efficiently recover reservoirs.â‘ Huff and puff technology has achieved good results in Fuyu oilfield and greatly improve productivity in individual well. Recovery percent in the first phase of huff and puff recovery is 4%,remaining reservoirs which are difficult to recover in out-stepping water flooding areas with no flooding response and old water flooding areas have been produced.â‘¡Preliminary achievements in steam stimulation flooding tests have been carried out. Thermal recovery technology after water flooding is practical for EOR in Fuyu oilfield based on theoretical researches and on-site tests. Steam stimulation flooding tests are vital for thermal EOR technology in Fuyu oilfield. Several steam stimulation tests with different injection strategy have been sped up so as to reach related conclusions of well patterns, well types and steam injection parameters as quickly as possible. It can provide considerations for the decision of thermal recovery conversion after water flooding in Fuyu oilfield.