The Log Interpretation Technique for Low-porosity and Low-permeability Oil Intervals of Baibao Oil Field
|Course||Earth Exploration and Information Technology|
|Keywords||Ordos Basin Interpretation model Permeability reservoirs Hypotonic Causes Sedimentation Diagenesis Rock electrical parameters|
Low porosity and low permeability reservoir will be for quite a period of increasing reserves and production of the main resource base. Therefore, the low permeability reservoir exploration and research have good prospects for the development of China's petroleum industry has a special significance . Upper Triassic in Ordos Basin Reservoir is typical of low porosity and low permeability , low porosity and low permeability reservoirs . In recent years, on the exploration and development of low permeability reservoir discovered during a relatively high-quality reservoir , white leopard oilfield 6 3 Reservoir is one of them. In this paper, reservoir lithology , pore type and pore structure and physical properties influencing factors were studied in depth . Research in this area characteristics and sedimentary facies sedimentary characteristics , and to analyze the role of the deposition area of low permeability reservoir formation , diagenesis aspects from both the analysis of causes and effects of low permeability reservoir properties factor. Diagenesis by the main types and their characteristics to each diagenesis on reservoir properties of diagenesis and porosity evolution and then the relationship between the history of effects of different stages of diagenesis relationship formed with low permeability . Through the rock electrical parameters controlling factors , as well as the characteristics of rock electrical parameters analysis , recognizing rock electrical parameters in low permeability reservoir log interpretation of the important impact, while get method for determining the electrical parameters of rocks . Proposed method using variable m low permeability reservoir log interpretation methods . Through geological data , test data and production data , the \content and the oil saturation logging interpretation model ; according to the core description and key wells logging data , the establishment of logging lithological identification rendezvous with plates ; clear oiliness , lithology, petrophysical characteristics of the change , and the use of variable m France the wells of the region logging interpretation . Both conventional logging and interpretation of the results were compared with data on the use of oil test interpretation results have been tested.