Aeromagnetic anomalies and perspective oil traps in China

Journal Article · Sat Oct 01 00:00:00 EDT 1994 · Geophysics; (United States)

DOI:https://doi.org/10.1190/1.1443539· OSTI ID:6636118

Zhang, Y X ^[1]

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1. Ministry of Geologic and Mineral Resources, Beijing (China)

Based on analyses of aeromagnetic data from known oil and gas fields in China, aeromagnetic anomalies have been classified according to their genesis into three types: (1) structure-associated anomalies related to volcanic rocks, (2) anomalies related to magnetic basement fault blocks, and (3) structure-associated anomalies related to weakly magnetic sedimentary strata. The most successful applications of aeromagnetic data for locating favorable oil and gas structures are in the following kinds of areas: (1) areas where basement fault blocks of inhomogeneous lithology and magnetization are developed; (2) areas of weakly magnetic layered strata with a considerably thickness, either effusive or clastic deposits; and (3) areas where magnetic layers have undergone tectonic deformation with faulting and dip angles larger than 30 degrees. For reliable detection of such structures in sedimentary rocks and associated oil and gas traps, an integrated interpretation of geological and geophysical data is necessary.

• OSTI ID: 6636118
• Journal Information: Geophysics; (United States), Vol. 59:10; ISSN 0016-8033
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
CHINA
PETROLEUM DEPOSITS
GEOLOGIC TRAPS
MAPPING
NATURAL GAS DEPOSITS
MAGNETIC SURVEYS
DATA ANALYSIS
ASIA
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
RESOURCES
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration