In:
Energy Exploration & Exploitation, SAGE Publications, Vol. 27, No. 4 ( 2009-07), p. 225-259
Abstract:
There are various genetic types of natural gas in eastern China, which are mainly of biogenic gas, abiogenic alkane gas and abiogenic CO 2 . Large biogenic gas fields discovered at present are mainly distributed in Ying-Qiong basin (Ya13- 1, Ledong22–1, Dongfang1–1), Pearl River Mouth basin (Panyu30–1), Eastern China Sea basin (Chunxiao gas field) and Taixi basin (Tiezhanshan gas field) in the continental shelf, and carbon isotope of ethane is heavier than −28‰, which shows that the gas is coal-derived. Large abiogenic alkane gas fields are distributed in the deep part of Songliao basin (Xingcheng gas field, etc), and the natural gas is characterized by heavy isotope (δ 13 C 1 〉 −30‰), negative carbon isotope series and R/Ra 〉 0.5. CO 2 gas fields distribute widely from Songliao basin in the north to Ying-Qiong basin in the south, and total 35 CO 2 gas fields have been discovered in these areas with CO 2 content more than 60% and d 13 Cco 2 heavier than −28‰.
Type of Medium:
Online Resource
ISSN:
0144-5987
,
2048-4054
DOI:
10.1260/014459809789996147
Language:
English
Publisher:
SAGE Publications
Publication Date:
2009
detail.hit.zdb_id:
2026571-2
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