摘要
孝泉-新场-丰谷地区须四储层微相为扇三角洲前缘河口砂坝及扇三角洲平原分流河道。尽管该区须四段砂体的非均质性强,但仍具一定的横向对比性。含气显示良好的须四上部砂体,宏观上西薄东厚,即从孝泉→新场逐渐增厚,而新场-丰谷上部砂体分布稳定且厚度较大。须家河组储层中发育的裂缝对储层孔隙度贡献较小,但其对储层渗透性的改善作用十分明显。加强须四有利储层发育的储层基本特征的研究,对其进一步的勘探和开发具有重要的现实意义。
The T_3x_4 microfacies of Xiaoquan-Xinchang- Fenggu area are river mouth bar in front of fan delta and the fan deltaic plain distributary channel. The sand body in T_3x_4 reservoir of this area has strong aeolotropism, but it still has certain crosswise contrast. The upper sand body of T3x4 reservoir contains rich gas, and the show of oil and gas in west is thin but east is thick on macroscopic, that is it gradually becomes thick from Xiaoquan to Xinchang, but the upper sand body distribution of Xnchang-Fenggu is stable and thickness is thick. The crack in the Xujiahe group reservoir has smaller effect on the reservoir porosity, but it has obvious improvement to the reservoir permeability. The research on T3x4 reservoir features has the important practical significance to its exploration and development in the future.
出处
《钻采工艺》
CAS
北大核心
2007年第2期105-108,158,共4页
Drilling & Production Technology
