Characteristics of organic acids in lacustrine organic-rich shale, Ordos Basin, China

被引：2

作者：

Yang, Fei ^{[1
,2
]}

Xue, Lianhua ^{[1
]}

Yang, Shuang ^{[1
,2
]}

Chen, Guojun ^{[1
]}

Bi, Guangxu ^{[1
,2
]}

Lv, Chengfu ^{[1
]}

Ma, Ming ^{[1
]}

Su, Long ^{[1
]}

Zhang, Dongwei ^{[1
,2
]}

Zhou, Qianshan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China

[2] Univ Chinese Acad Sci, Beijing, Peoples R China

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2019年 / 37卷 / 08期

基金：

中国国家自然科学基金; 中国科学院西部之光基金;

关键词：

Semi-closed system; organic acid; lacustrine shale; Ordos Basin;

D O I：

10.1080/10916466.2018.1539753

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：

Organic acids are critical to studying the formation of secondary porosity in tight lacustrine reservoirs, Ordos Basin. The expelled fluids produced through hydrocarbon evolution in a semi-closed system under different pressure and temperature settings (16.9 MPa, 250 degrees C; 22.1 MPa, 300 degrees C; 32.5 MPa, 350 degrees C; 37.7 MPa, 370 degrees C; 42.9 MPa, 400 degrees C; and 52.2 MPa, 450 degrees C) were collected. In this study, 12 different organic acids were identified using ion chromatography, and both the concentration and species of organic acids indicate a two-step process.

引用

页码：876 / 881

页数：6

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