Researching In Logging Permeability Interpretation Of The Gas Cap Sandstone In Lamadian Oilfield

In this paper, the permeability model which has been built is established in Lamadian oil field gas-bearing reservoirs' lithology and structure style analysis. By means of using and comparing coring and electrical logging data, calibrating logging data's affecting factors, it should be Improve the interpretation accuracy of sandstone gas reservoirs'permeability, eliminate the restrictions of effective permeability interpretation, standardize gas reservoirs' permeability's interpretation, and complete technology series through the study of the project.It has been approved that the development of effective permeability gas reservoir interpretation in this project which taken rock core permeability as standard, can enhance the average relative error of First and Second kinds gas permeability calculation to±55%, and successfully eliminate the regional impact. This technique can offer comparatively accuracy data for reasonable development of gas-cap, and has great economical and social benefits of evaluating economic recoverable reserves, adjusting pattern of well and directing gas pays development.