The Second Infilled Adjustment Of Fine Reservoir Evaluation In Hai Tuozi Oilfield

Hai Tuozi oilfield is the key production block of production factories of Qian An , at present , efficient and reasonable development is the most important work of Hai Tuozi oilfield. In 2002, specially projected and carried out the research of early project water policy, mainly through re-recognition of the oil reservoir geology and initial injection-production dynamic analysis, made suitable injection policy of development initial. In 2005, TuoZi oilfield GNT company carried out description research work of fine reservoir in Hai Tuozi oilfield , made a further research work in strata correlation , logging data standardization, sandbodies sedimentary microfacies, micro structural characterization and numerical simulation etc..In 2006, production factories overall implemented 102 infilled adjustment wells finished drilling, obtained the new geological data and production material, provided material base to deepening the key problem study.However, compared with the same type of domestic reservoirs, the reservoir description that described before far less than meet research precision, can't satisfy with more subtle understanding description to the major reservoirs that account 90.1% of the total reserves .In this context launched the project that digital reservoir software"direct"applied to Hai Tuozi oilfield.This paper uses the method of fine reservoir numerical simulation, through technical measures that single-well explanation module establishment to Hai Tuozi oilfield, the contrast of small fine layers , sedimentary microfacies research of small layer , make the heterogeneity research of thick oil layer to reaches that it can identify the superposition of the single channel of the river in the vertical, lateral product of the channel in the plane, make clear the geometric shape in the spatial distribution of sand body, realized the division of seepage barrier and connect body and the recognition of flow unit . And at the same time make full use of the relationship between the water flooded material of adjustment wells that new finished drilling, pressure material, injected water direction of production data research and the sandbodies distribution and crack development , and then do a accurate geological description to the the major reservoirs . Thus complete the reservoir evaluation of the second infilled adjustment .