定边油田罗庞塬地区长7段页岩油储集砂岩开发特征及意义

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中图分类号：P618.13 文献标志码：A 文章编号：1003-5168（2025）07-0113-04

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.07.022

Development Characteristics and Significance of Chang 7Shale Oil Storagesandstone in Lupang yuan of Dingbian Oilfield

DU Xiuxiu1WU Yufeng² （1.Yanchang Oilfield Co.， Ltd.，Dingbian Oil Production Plant， Yulin 716Ooo，China; 2.School of Earth Science and Resources，Chang'an University，Xi'an 71oo54，China）

Abstract： [Purposes] Inorder to achieve the breakthrough of the production of Chang7 shale oil storage sandstone in Ordos Basin，it is urgent to analyze the development characteristics of shale oil storage sandstone to provide suggestions for the efficient and clean development of unconventional oil reservoirs of the same type.[Methods] This paper uses microscopic observation，helium measurement and conventional sensitivity test to describe the static characteristics of Chang7 shale oil storage sandstone in the area of Luopangyuan area，and then uses water flooding experiment，dynamic analysis，analysis of formation water and reservoir properties to analyze the development characteristics of the oil test and production data.[Findings] The results show that the Chang7 shale oil storage sandstone in Luopangyuan area mainly develops powder， fine neutral and weakly hydrophilic feldspar sandstone or feldspar sandstone， and feldspar pore are the main shale oil storage space.The fluid is mainly low density and formation water withlowacidand high salinity，andthereservoir is mainlyunconventional shalereservoir with development characteristics of low freezing point crude oil，low recovery，low pressure gradient and high water content.[Conclusions] In the development of Chang7 shale oil in Luopangyuan area，attention should be paid to the shutdown of high moisture content wellinjection，the use of horizontal wellfailure development and later gas injection or gas injection displacement development scheme.

Keywords：Luopangyuan area; shale oil reservoir; development characteristics; unconventional reservoir; reservoircharacteristics

0 引言

近年来，随着压裂技术及 吞吐注采法[2]的进步与推广应用，非常规能源资源在当前社会能源资源消费中的占比不断提高[3]，逐渐成为国内外油气资源勘探开发的重心4。（剩余5022字）