Original porosity is typified by the intergranular porosity of sandstones and the intercrystalline and oolitic porosity of some limestones.
原生孔隙度以砂岩粒问孔隙度和某些石灰石的晶体粒间和鲕状孔隙度为代表。
The effective porosity and original gas saturation of gas reservoir are the important parameters in calculating gas reserves.
气层“两度”是指有效孔隙度与原始含气饱和度，它是计算天然气储量的重要参数。
Based on analysis of geological, seismic and experimental analysis in Gaoyou depression, the article analyses the original mechanism of secondary porosity.
结合高邮凹陷地区实际地质情况，在地质、地震及岩芯分析的基础上，对次生孔隙的成因机制从测井角度进行了分析讨论。
The improvement of porosity was closely related to the physical properties of original reservoir.
孔隙的改善程度与控制矿物溶解后离子迁移能力的原始岩石物性等因素紧密相关。
The results showed that the root reason for valve body failure was seriously casting defect exist and its big and density shrinkage porosity form the original crack;
结果得出：阀体失效的主要原因是阀体本身存在严重的铸造缺陷，铸造疏松严重、孔洞尺寸大乃于形成原始裂纹源；
The results showed that the root reason for valve body failure was seriously casting defect exist and its big and density shrinkage porosity form the original crack;
结果得出：阀体失效的主要原因是阀体本身存在严重的铸造缺陷，铸造疏松严重、孔洞尺寸大乃于形成原始裂纹源；
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