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Title: Expelling of hydrocarbon in undercompacted oil-source rocks

Abstract

The clay of source rocks below a certain depth is generally undercompacted. Historical analysis of undercompacted EK2 mudstone in the Huang Hua depression, North China basin, has shown that the peak of the undercompacted zone decreases under a certain depth, mainly due to development of a microfracture caused by abnormally high pressure. Based on the compaction history of mudstones and the hydraulic fracturing condition in this area, the depth of the microfracture developed in the EK2 undercompacted zone is calculated at 2900 m, which is also verified by fluorescence data. Geochemical evidence has also shown that many hydrocarbons are expelled under 2900 m.

Authors:
 [1];  [2]
  1. West Virgina Univ., Morgantown, WV (United States)
  2. China Univ. of Geosciences, Beijing (China)
Publication Date:
OSTI Identifier:
6750266
Report Number(s):
CONF-940988-
Journal ID: ISSN 0149-1423; CODEN: AABUD2
Resource Type:
Conference
Journal Name:
AAPG Bulletin (American Association of Petroleum Geologists); (United States)
Additional Journal Information:
Journal Volume: 78:8; Conference: Annual meeting of the Eastern Section of the American Association of Petroleum Geologists (AAPG), East Lansing, MI (United States), 18-21 Sep 1994; Journal ID: ISSN 0149-1423
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; CHINA; PETROLEUM DEPOSITS; CLAYS; COMPACTIFICATION; SOURCE ROCKS; FRACTURING; ASIA; GEOLOGIC DEPOSITS; MINERAL RESOURCES; RESOURCES; 020200* - Petroleum- Reserves, Geology, & Exploration

Citation Formats

Zhou, Guojun, and Chen, Fajing. Expelling of hydrocarbon in undercompacted oil-source rocks. United States: N. p., 1994. Web.
Zhou, Guojun, & Chen, Fajing. Expelling of hydrocarbon in undercompacted oil-source rocks. United States.
Zhou, Guojun, and Chen, Fajing. 1994. "Expelling of hydrocarbon in undercompacted oil-source rocks". United States.
@article{osti_6750266,
title = {Expelling of hydrocarbon in undercompacted oil-source rocks},
author = {Zhou, Guojun and Chen, Fajing},
abstractNote = {The clay of source rocks below a certain depth is generally undercompacted. Historical analysis of undercompacted EK2 mudstone in the Huang Hua depression, North China basin, has shown that the peak of the undercompacted zone decreases under a certain depth, mainly due to development of a microfracture caused by abnormally high pressure. Based on the compaction history of mudstones and the hydraulic fracturing condition in this area, the depth of the microfracture developed in the EK2 undercompacted zone is calculated at 2900 m, which is also verified by fluorescence data. Geochemical evidence has also shown that many hydrocarbons are expelled under 2900 m.},
doi = {},
url = {https://www.osti.gov/biblio/6750266}, journal = {AAPG Bulletin (American Association of Petroleum Geologists); (United States)},
issn = {0149-1423},
number = ,
volume = 78:8,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 1994},
month = {Mon Aug 01 00:00:00 EDT 1994}
}

Conference:
Other availability
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