Seismic sequence stratigraphy of the East China Sea

Conference · Fri Jul 01 04:00:00 EDT 1994 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:6729677

Wornardt, W W; Zhang, J Z ^[1]; Vail, P R ^[2]; Peilian, Li ^[3]; Baie, L F ^[4]

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1. MICRO-STRAT Inc., Houston, TX (United States)
2. Rice Univ., Houston, TX (United States)
3. Shanghai Bureau of Marine Geological Survey (China)
4. SETSCO Inc., Houston, TX (United States)

Interpretation of the relationships of the second- and third-order depositional sequences, their sequence boundaries, maximum flooding surfaces, low stand and high stand systems tracts, and their surfaces were made on three wells in the East China sea. The age of the sediments is based on the integration of calcareous nannofossils, planktonic, benthic and large forams, and palynomorphs. The maximum flooding surfaces, sequence, and systems tract boundaries were identified and annotated on well logs and on a sequence stratigraphy analysis chart. These surfaces and boundaries on well logs were correlated with a series of seismic reflection profiles. The lacustrine-fluvial sediments in the Shi Men Tan 1 well were correlated to similar sediments in the Ming Yue Feng 1 well. Lowstand systems track slope fan complexes, that were deposited at the same time as the Andrews and Forties fans in the North Sea, were found in the Shi Men Tan 1 and Ming Yue Feng 1 wells. The slope-fan complexes were deposited in upper bathyal water depths (200-500 m) based on benthic foraminifers. Coastal swamp lagoonal sediments identified in the three wells could be the source rocks for hydrocarbon accumulations in the channels or channel overbank deposits in the slope-fan complexes and the lowstand prograding complexes. Stratigraphically above these deposits, nummulite carbonate banks were identified in the Shi Men Tan 1 and the Ling Feng 1 wells. Several significant angular unconformities were recognized at various intervals in the three wells.

• OSTI ID: 6729677
• Report Number(s): CONF-940803--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 78:7
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
CHINA SEA
GEOLOGY
GEOPHYSICAL SURVEYS
PACIFIC OCEAN
RESOURCE POTENTIAL
SEAS
SEDIMENTS
SEISMIC SURVEYS
STRATIGRAPHY
SURFACE WATERS
SURVEYS