Pubei Oilfield T232Wellblock Putaohua Reservoir Sedimentary Characteristics

In order to guide the exploration and development of Putaohua reservoir in Pubei oilfield,According to the theory of sedimentology, sequence stratigraphy, etc, on the basis of theintegrated use of seismic data, logging data, core data, the T232wellblock of sequencestratigraphy, sedimentary system and reservoir distribution and accumulation law ofcharacteristics were studied.Area is mainly affected by the north provenance, developmentalfluvial-dominated shallow water delta. Fluvial-dominated shallow water deltaic deposit ischaracterized by development of distributary channel, Vertical bottom-up development maintype out front delta lake lake, lake retreat in front, into the type front type into the outer frontfacies and lake, The major development, fault anticline reservoir lithologic reservoir andlithologic reservoir. Dominant factors of reservoir forming include: Anticlinal structural highsplays a role of control on oil and gas distribution. Sedimentary microfacies types of oilproducing specific distribution control action; The development of fault control effect to thehydrocarbon migration accumulation, a blocking effect. Finally advantageous area projections,according to the T232wellblock of sequence stratigraphy, the types of sedimentary facies,reservoir types and laws, on the basis of research on T232areas favorable for putaohuareservoir in wellblock prediction.