Study on Wettability and Static Imbibition Law of Tight Reservoir Based on Nuclear Magnetic Resonance Test

被引：2

作者：

Chen, Shilin ^{[1
,2
]}

Liu, Xuewei ^{[2
]}

Xiong, Shengchun ^{[2
]}

Liu, Guozhong ^{[2
]}

Wang, Xiangyang ^{[3
]}

机构：

[1] Univ Chinese Acad Sci, Coll Engn Sci, Beijing, Peoples R China

[2] PetroChina, Res Inst Petr Explorat & Dev, Beijing, Peoples R China

[3] CNPC Engn Technol R&D Co Ltd, Beijing, Peoples R China

来源：

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2023年 / 59卷 / 02期

关键词：

tight reservoir; nuclear magnetic resonance; wettability; static imbibition; imbibition law;

D O I：

10.1007/s10553-023-01537-1

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The research on tight oil is one of the hot spots nowadays. China has rich tight oil resources, with a wide distribution range and great development potential. For tight reservoirs, this paper proposes a method to test the rock wettability of tight reservoirs using the nuclear magnetic resonance (NMR) technology. Based on the idea of combining the NMR technology with indoor physical simulation, and on the basis of T2 relaxation time, the mixed wettability index is calculated through the limit of T2 relaxation time of 1 ms to evaluate the wettability of tight reservoirs. The design contrast experiment has studied the influence of wettability on the imbibition law, and concluded that the imbibition rate of hydrophilic rock samples is higher than that of lipophilic rock samples, but the ultimate recovery rate of lipophilic rock samples is higher than that of hydrophilic rock samples, which provides a basis for the development of tight reservoirs.

引用

页码：375 / 382

页数：8

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