摘要
鄂尔多斯盆地马岭地区为三角洲前缘沉积,长8_1油层属于低渗透、特低渗透、超低渗透致密砂岩油藏,通过岩心观察与描述,建立岩电关系,充分利用测井资料并结合区域地质资料进行综合研究:马岭地区长8_1储层砂岩以岩屑长石质砂岩为主,成分成熟度中等偏低。通过岩心描述和测井的综合响应能够较好的识别沉积微相,马岭地区长8_1储层主要发育水下分流河道沉积,属于三角洲前缘相。
The Maling area in the Ordos Basin is a delta front deposit, and the Chang 81 oil layer is a low permeability, ultra low permeability, ultra low permeability tight sandstone reservoir. Comprehensive test strips, scanning electron microscopy, physical properties and other experimental data to deepen the understanding of the characteristics of the Chang 81 reservoir in the Maling area. Through the logging response and the division of sedimentary microfacies, it is found that the Chang 81 reservoir sandstone in the Maling Oilfield is lithic feldspar. Sandstone dominates and the compositional maturity is moderately low. The Chang 81 reservoir in Maling area mainly develops underwater distributary channel sediments, which belong to the delta frontal phase. The physical differences are consistent with the sedimentary microfacies and sand body distribution direction, and the underwater distributary channel has the best physical properties.
出处
《国外测井技术》
2018年第5期48-50,2,共3页
World Well Logging Technology
关键词
马岭地区
测井响应
沉积微相
The Maling area
Logging response
D Sedimentary microfacies
