Modeling By Well Logging Parameter For Different Types Of Oil Pool In Dongxin Oilfield And Means Of Explanation Research

The geological structure of Dongxin oilfield is complex. There are many oil-bearing sequence in this region, and also developed types of reservoir bed and oil reservoir. Log response of the oil and gas zone very complicated. Ying 11 block in the Shahejie member developed low resistance oil layer, thin lithology of oil layer reservoir bed, micropore, high content of irreducible water and formation water salinity, high ability of clay annex conductance. Resistivity of wall rock comparatively high. For years, well logging exploration in Dongxin oilfield followed the mode of high porosity and high permeability all along, and not come into being a set of perfect exploration model and standard yet, which absolutely fit for the complex geology character. These effect the exploration and exploitation course and the reservoir description precision of Dongxin oilfield.Based on log information and other related data, well logging explanation make researches on the connection between the character of the log data and the character of the stratumtous lithology, properties of matter and oiliness. It can make all-around geology explanation for the reservoir bed according to the connection model, technic flow and practice experience.Multi-well precision exploration(well logging secondly-exploration) is reassessing for single well exploration, which made target reservoir bed be reassessed and offered exact reservoir parameter and well logging section after deepened geology understanding and obtained core sample analysis data and testing results. Multi-well precision exploration is the main measure to recheck the old well, and could re-know the misplay in the first exploration. Multi-well subtly exploration offered exact parameter for adjust accounts of reserves, credible parameter for reservoir description and numerical simulation, and also important way to adjust the development project, empolder potentialities of old regions and increase the output.The text is established in years of the geology research about Dongxin oilfield and abundant of production data, relies on log database and network information technology, uses advanced logging exploration theory and mathematics statistics method for reference, knitted types of oil pool and the character of reservoir bed in Dongxin oilfield together, carries on logging evaluate and geology cause of formation research deeply, regards thin bed and abnormity log curve layer, discussed establishing a set of exploration model and standard, which fit for oil pool types and reservoir bed characters of this section, accordingly empolder the potential reserves of low resistance oil layer.