论文部分内容阅读
为提高目的层段油藏测井解释和有利区域预测的精度,利用砂岩薄片、铸体薄片和扫描电镜等技术手段并结合测井资料对吴起—铁边城地区长6储层的“四性”关系进行研究,认为长6储层属于典型的中孔低渗油藏;储层岩性主要为细粒长石砂岩为主,成分和结构成熟度均中等;岩性、物性的差异控制了储层油藏的富集程度,确定了储层物性下限的标准:孔隙度为7.5%,渗透率为0.1×10-3μm2,电性下限电阻率为12Ω.m,声波时差为214μs/m。从而为长6油藏进一步开发评价和增储上产,提供了有力的依据。
In order to improve the accuracy of well log interpretation and favorable regional prediction in the target interval reservoir, the sandstone, thin slab and scanning electron microscopy (SEM) ", It is considered that the Chang 6 reservoir belongs to the typical low-permeability reservoir of medium porosity. The reservoir lithology is mainly composed of fine-grained feldspathic sandstones and the composition and structure maturity are moderate. The lithology and physical properties are controlled by the difference According to the enrichment degree of reservoirs, the lower limit of physical property of reservoir is determined: the porosity is 7.5%, the permeability is 0.1 × 10-3μm2, the electrical resistivity is 12Ω.m, the acoustic time difference is 214μs / m . Thus providing a strong basis for the further development and evaluation of the Chang 6 reservoir and the increase of reserves and production.