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杏子川油田主要产层为长6油层组,研究油区内储层沉积特征对油田的开发和增产具有重要意义。以沉积岩石学、储层沉积学、测井地质学、石油地质学、油田开发地质学等学科为理论指导,通过岩心相标志、测井相标志对研究区长6储层沉积特征进行研究,分析沉积因素对油藏的控制作用。研究认为长6油层组属于三角洲前缘亚相,储层的主要沉积微相为水下分流河道、河口坝,勘探开发的主要对象是水下分流河道。
The main producing zone of Xingzichuan Oilfield is Chang 6 oil-bearing formation. It is of great significance to study the reservoir sedimentary characteristics in the oil zone for the development and production increase of oil fields. Based on the theories of sedimentary petrology, reservoir sedimentology, well logging geology, petroleum geology and oilfield development geology, the sedimentary characteristics of Chang 6 reservoir in the study area are studied by core facies markers and logging facies markers. Analysis of depositional factors on reservoir control. The study shows that the Chang 6 reservoir belongs to the delta front subfacies. The main sedimentary microfacies of the reservoir are underwater distributary channels and estuarine dams. The main target of exploration and development is the underwater distributary channel.