Carbonate Chimney - The Hole Formation With Comprehensive Evaluation Method And Applied Research

Compared with clasolite reservoirs, the particular character of carbonate reservoirs is fracture character. Well logging interpretation and evaluation about the fractured reservoirs is far more difficult than isotropic voided reservoirs, because the void space of fractured reservoirs is more complicated than conventional isotropic voided reservoirs, and it has terrible anisotropy. And the well logging evaluation about fractured reservoirs have been the advanced subject of the study of well logging interpretation methods.In view of carbonate reservoirs' important status in oil and gas reservoirs and the complexity of the carbonate fractured reservoirs, many experts and scholars on the studying logging interpretation methods home and abroad have done a lot of work on the field of logging study about carbonate fractured reservoirs. At present, most of logging methods and logging instruments are based on isotropic formation models, in turn carbonate fractured reservoirs, have the feature of typical anisotropic. As a result, up to now, no perfect logging evaluation methods on carbonate fractured reservoirs have been formed.Based on the above problems, present studying hot and advanced problems and the feature of logging information ,this article established a suit of comparatively perfect practical logging evaluation method on carbonate fractured reservoirs, directed at some main issues that came across in carbonate fractured reservoirs evaluation. This method proceeded from actual conditions is based on the predecessors' researches.. Nowadays the research is an advanced subject in the field of oil and gas logging research, and it's research results will enrich and improve the theory and applicative level of this method without any doubt.The article aimed at the feature of carbonate fractured reservoirs and logging information that is collected embarking on four main research aspects: First is carried on well logging mechanism experimental research on fractured and caved reservoirs, researched the feature of those reservoirs by combining theory and practicality; second is carried on research on the geological feature of those reservoirs and well logging integration interpretative evaluation technology, and further established corresponding logging interpretative methods; Third is carried on the research of new logging technology's geological application in these reservoirs, mainly researched the evaluation methods of fractured and caved reservoirs with imaging logging ,nuclear magnetic resonance logging and DSI; Four is carried on the live geological application research on these reservoirs , and further checking up the applicative effect of these reservoirs that were researched with logging evaluation methods by field case.Preconcerted research content is successfully completed by research and many achievements which are very important to the subject's development and practical field production are obtained:...