低渗透油藏储层裂缝的识别方法
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摘要
目前,国内低渗透油藏面临综合含水高、地质储量采出程度低、剩余油储量大且分布不均衡等突出矛盾.在低渗透油藏中,油气富集的空间与地下流体穿过的通道是储层裂缝.所以在油田的开发生产过程中对储层裂缝的识别至关重要.同时在油藏的勘探开发中裂缝的辨别也是长久以来油田所面临的难点问题.通过对裂缝识别方法的研究,分析各识别方法的原理与适用范围,综合选用全面准确的方法辨识储层裂缝,从而为油藏的后期勘探开发提供准确方向.
At present,low permeability reservoirs in China are facing such outstanding contradictions as high comprehensive water cut,low recovery of geological reserves,large remaining oil reserves and uneven distribution.In low permeability reservoirs,the space between oil and gas enrichment and the passage of underground fluid is reservoir fractures.Therefore,the recognition of reservoir fractures is very important in the process of oilfield development and production.At the same time,the recognition of fractures is also a difficult problem faced by oilfields for a long time in the exploration and development of reservoirs.Through the study of fracture recognition methods,the principle and application scope of each recognition method are analyzed,and comprehensive and accurate methods are selected to recognize reservoir fractures,so as to provide an accurate direction for the later exploration and development of reservoirs.
At present,low permeability reservoirs in China are facing such outstanding contradictions as high comprehensive water cut,low recovery of geological reserves,large remaining oil reserves and uneven distribution.In low permeability reservoirs,the space between oil and gas enrichment and the passage of underground fluid is reservoir fractures.Therefore,the recognition of reservoir fractures is very important in the process of oilfield development and production.At the same time,the recognition of fractures is also a difficult problem faced by oilfields for a long time in the exploration and development of reservoirs.Through the study of fracture recognition methods,the principle and application scope of each recognition method are analyzed,and comprehensive and accurate methods are selected to recognize reservoir fractures,so as to provide an accurate direction for the later exploration and development of reservoirs.
引文
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