西藏措勤盆地下白垩统碳酸盐岩储层特征及评价

Features and evaluation on Lower Cretaceous carbonate reservoir in Tsuoqin basin in Tibet, China

摘要: 本文是以措勤盆地碳酸盐岩为研究对象,利用野外地质实测资料和室内分析化验资料,分析碳酸盐岩储层的岩性特征、储集空间、储层类型、储集性能。对朗山组、川巴组的碳酸盐岩储层进行了评价。认为郎山组厚度大,溶蚀、裂缝发育,在区域上相对稳定,是该区的重点储层,多巴组的储层次之。以此弥补该地区的碳酸盐岩储层研究的空白。

Abstract: The carbonate rocks of Tsuoqin basin in Tibet,China have been researched in this paper.The charact eristics,reservoir space and reservoir type of the carbonate rocks are analized by means of geologic survey in field and laboratory analysis.The carbonate rock reservoirs of Lang mountain and Duoba group are evaluated.The result shows that Lang mountain group has a great sedimentary thickness,with well-developed dissolution and cracks,and is regionally relative stable and a major reservoir;the Duoba group is a minor one.Thus,this work filled in the gap of research on carbonate rocks in this region.