Empirical Study On Water Flooding Development Of S0 Formations In Sabei Region

Currently the Daqing Oilfield has entered a period of high water development, various reservoirs have all water injection or polymer injection. But because S0 formations is in low permeability formation,and strong sensitivity to reservoir,and has certain particularity. Therefore oil field development in the past 50 years,is never used its reserves in the north of the development zone.For the effective development of S0 formations, select the test area, with the S0 formations reservoir water injection test research in Sabei Region.One is through the reservoir properties, select a suitable clay stabilizer;The second is on the 15 sidewall core data were analyzed to further deepen the understanding of reservoir; The third is on the development plan for the design and optimization, and define the 175 metres well spacing and Anti-nine area well;Fourth, the process of completion, with current limiter in the fracturing of different possible inhibitor concentration, use foam flowback agent and follow close behind resin-bonded comparison test, such as technology and evaluated for effectiveness;Five are on S0 formations for lifting and matching technology selection and evaluation. The progressive completion of related research content, for S0 formations of infusion development has created a favourable conditions.According to the results of the test area well 35 estuary, where oil-29, Injection wells 6, June 2008 all put into production.At present 29 wells producing liquid 27.5t every day, crude oil production 15.5t, water-43.6%, stage cumulative oil 1.0262×104t, recovery of 2.59%, S0 formations development achieved accomplishments, and to work for the arrangement.