Application Of Fine Logging Interpretation Technology In Main Exploration Area

Fine logging interpretation technology is derived from the three interpretative demands of the company, which is single-well logging interpretation, fine logging interpretation and multiple-well logging interpretation. Based on a set of logging interpretation and evaluation technology, fine logging interpretation is the revaluation for single-well logging interpretation. The study on fine logging interpretation in Jilin oilfield begins in South Haituo area in 2004 and has a good effect of application in Ying-tuo area and Daqingzijing area in 2005-2006. Due to two-part oil geologic reserve in Jilin oilfield is in the low-porosity and low-permeability formation, by the study on this field, at prent a set of interpretation and evaluation technology suitable for the formation in Jilin oilfield was derived. Logging suite suitable for the geological characteristics of each area is selected, which is the basis of logging interpretation. The model is made to calculate the porosity, permeability and saturation with the core graduation well logging, which can improve the calculated precision of these factors. We analyse effects of formation, such as mud invasion and the change of pore structure to the electric logging, and calculate accurate oil saturation, which can increase the precision of oil-water identification. The production prediction is developed to provide reference for production test. We also make multiple-well valuation and predict oil-gas relative concentration area and so on. As the study on the low-porosity and low-permeability formation, a set of logging interpretation and evaluation technology suitable for such formation in China must be developed, which make logging interpretation more effective in the exploration of oilfield.