Distribution And Variation. Huoshaoshan Oilfield Percolation Characteristics And Its Influencing Factors

Low permeability reservoir is an important type of oil and gas reservoirs in the continental sedimentary basins in China. With the growing energy demand and continuously improving oil transformation technology in china, Low-permeability oil and gas fields have gradually become the important potential for the stable development of energy industry. in a Considerable period of time, the low permeability oil and gas fields is the important resource base for the increasing reserve and production of the oil industry in china.Due to sedimentation, diagenesis and post-tectonic effects, low permeability reservoir is seriously heterogeneous, fractures are widely distributed. As as the different flow mechanism in the Matrix system and the fracture system is different, different dimensions of fractures have different affecting levels, rational development of such fields is difficult. Therefore, studying on the distribution rule of different fractures as well as influencing factors in the low permeability fractured reservoir is very necessary.This thesis have studied the Fire Mountain reservoir, carried out the following work and obtained the corresponding results.①.Based on the conclusion and summary of the geological features and characteristics of reservoir development of the Fire Mountain low permeability fractured reservoir, by using the Pansystem3.4 well test interpretation software, completed the interpretation of all the well test data since the development of the field, and carried out the related statistics and analysis.②.According to the increasing law of reservoir water production rate, the relation between the field production rate and recovery, the production change discipline as well as comprehensive measures scale and etc., divided the different flow stages for the reservoir Scientificly. Studied the principle and the methods of dividing the seepage media of the Fire Mountain, and drew out the seepage media distribution at different stages for each layer based on the theoretical method discussed above.③.Analyzed the distribution as well as the variation law of the seepage media for the Fire Mountain oil reservoir.④.Studied the affecting factors on the seepage media, and analyzed how the various reform measures affect it.⑤.Based on the analysis of dynamic developing characteristics, combined with the distribution rule of the seepage media, studied the relation between them, and understand the dynamic development characteristics are different in the different seepage media districst.⑥.Analyzed the current contradictions on how to develop the oil reservoirs effectively, by usting the flooding curve, anlyzed the reservoir potential, so made the adjustments for each layer of the Fire Mountain oil field.