Jin98Block Development Effect Evaluation And Research On Injection Production Well Pattern Adjustment

Jin98block area is located in the southwest of western slope in the western depres sion, oil-bearing area of0.5square kilometers, geological reserves of800000tons of san d layer four Dujiatai reservoir. This area belongs to the west slope of stepped area, adjace nt to the eastern side of the deep zone, oil source condition is sufficient, refers to the are a of oil and gas migration, has good conditions for oil and gas accumulation. The bloc k with the1979October drilled well swell Jing2-12-05, test to obtain good oil and gas de velopment and investment, but by the strong heterogeneity, the effect of longitudinal contr adictions and old wells fracturing, fracture direction oil well water channeling is serious, T akable Ii injection it good, well at low liquid yield. At the same time, the structure of fault block reservoir, remaining oil distribution is not clear, for further adjustment brings certai n difficulty. So it is necessary to further implement the block structure, carry out research on Web Mining98adjustment wells, reservoir description and injection. Application of geological, seismic technology, in block Jin98fine structural interpretation, sedimentary f acies; logging two evaluation technology and production testing data to reservoir develop ment research work, implement the body out of the oil of Dujiatai formation of the san d. Through the development of comprehensive geological study, re recognize the geolog ical body, and carry out evaluation of injection production well pattern adaptability, carry out the determinant of water injection test, reach the purpose of improving recovery fa ctor, and to provide reference for the effective development of similar reservoirs.Results were applied to field effect is very significant, in accordance with the sche me of transfer4wells,2wells reinjection, forming three rows of injection wells,4w ells determinant of injection production well pattern. After the implementation of the win gs, crack down wells with high water cut, wells efficiency increases, the new7wells of w ater flooding, water flooding well accounted for50%of total well number. Block daily o il production increased from30t/d to36t/d, water content decreased from84.9%to76.4%, is expected to be11.1percentage point increase oil recovery.