沈澈,蒋有录,苏圣民,王洪波
SHEN Che,JIANG Youlu,SU Shengmin,WANG Hongbo

• 1:中国石油大学(华东)地球科学与技术学院
• 2:中国石油华北油田公司勘探开发研究院

摘要(Abstract)：

乌兰花凹陷为二连盆地潜山油气重点勘探区域,凹陷内花岗岩潜山岩性复杂,储层非均质性强,整体勘探程度较低。综合镜下鉴定、岩性分析、测井解释等多种技术手段研究乌兰花凹陷花岗岩潜山储层特征及其发育模式。乌兰花凹陷花岗岩潜山主要储集空间类型为溶蚀孔、溶蚀扩大缝和构造裂缝,发育风化型和构造型2种储层,具有风化型-构造型储层复合发育的潜山储层发育模式,潜山优质储层分布在断裂带与风化壳复合的区域。该认识对深化乌兰花凹陷潜山勘探具有重要意义,同时也为其他勘探程度较低的花岗岩潜山储层区块提供借鉴。
Wulanhua Sag is the key exploration area of the buried-hill oil reservoir in Erlian Basin, and the granite buried hills in the sag are characterized by complex lithology, strong reservoir heterogeneity and low overall exploration degree. By means of microscope identification, lithology analysis and well logging interpretation, the characteristics and development pattern of the granite buried-hill reservoir in Wulanhua Sag were studied. The main reservoir space types of granite buried-hill in Wulanhua Sag are dissolved pores, dissolved expansion fractures and structural fractures. There are two types of reservoirs, namely weathering type and structural type, and the buried-hill reservoir development model is characterized by the composite development of weathering and structural reservoirs. The high quality buried-hill reservoirs are distributed in the area of fault zone and weathering crust.The understanding is of great significance for deepening the exploration of Wulanhua Sag buried hill, and also provides referenc for other granite buried-hill blocks with low exploration degree.

关键词(KeyWords)： 潜山储层;主控因素;储层发育模式;花岗岩潜山;乌兰花凹陷
buried-hill reservoir;main controlling factor;reservoir development model;granite buried-hill;Wulanhua Sag

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气股份有限公司华北油田分公司技术开发项目“二连盆地潜山油藏成藏机制与勘探方向研究”(HBYT-2018-JS-176)

作者(Author): 沈澈,蒋有录,苏圣民,王洪波
SHEN Che,JIANG Youlu,SU Shengmin,WANG Hongbo

DOI: 10.19597/j.issn.1000-3754.202005045

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