Abstract
Forecasting subtle traps by sequence stratigraphy and 3D seismic data is a sensitive topic in hydrocarbon exploration. Research on subtle traps by geophysical data is the most popular and difficult. Based on the sufficiently drilling data, log data, core data and 3D seismic data, sediment sequence of Qikou depression, Huanghua basin was partitioned by using sequence stratigraphy theory. Each sediment sequence system mode was built. Sediment faces of subtle traps were pointed out. Dominating factors forming subtle traps were analyzed. Sandstone seismic rock physics and its response were studied in Tertiary System. Sandstone geophysical response and elastic modulus vary laws with pressure, temperature, porosity, depth were built. Experimental result and practice shows that it is possible using seismic information forecasting subtle traps. Integrated using geology, log, drilling data, special seismic processing technique, interpretation technique, high precision horizon calibration technique, 3D seismic visualizing interpretation, seismic coherence analysis, attribute analysis, logging-constrained inversion, time frequency analysis, subtle traps object is identified and interpreted. Finally, advantage object of subtle trap in this area was determined. Bottomland sand stratigraphic and lithologic reservoirs in Qinan slope zone have been founded by means of high resolution 3D seismic data field technique, high resolution 3D seismic data processing technique and seismic wave impedence inversion technique.
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References
Halbouty M T. Geology of giant petroleum fields [A]. AAPG Memoir [C]. Tulsa: AAPG, 1970, 575.
Halbouty M T. Giant oil and gas fields of the decade 1968–1978 [A]. AAPG Memoir 30 [C]. Tulsa: AAPG, 1980. 596.
Halbouty M T. The deliberate search for the subtle trap [A]. AAPG Memoir 32 [C]. Tulsa: AAPG, 1982. 351.
Halbouty M T. Giant oil and gas fields of the decade 1978–1988 [A]. AAPG Program Abstracts, AAPG Stavanger Conference [C]. Stavanger: AAPG, 1990. 350–355.
MAO Ning-bo, FAN Zhe-qing, LI Yu-hai, et al. A study of beach and bar sands subtle reservoirs in western slope of Qinan sag [J]. Oil & Gas Geology, 2004, 25(4): 455–461. (in Chinese)
MAO Ning-bo, DAI Ta-gen, PENG Sheng-lin. Identification technologies of stratigraphic and lithologic traps in continental basin and its application [J]. Journal of Central South University(Science and Technology), 2004, 35(S1): 8–13.
Bally A W. Atlas of seismic stratigraphy [A]. AAPG Studies in Geology 27 Vol. 1 [C]. Tulsa: AAPG, 1987. 124.
MAO Ning-bo, ZHOU Li-hong, DAI Ta-gen, et al. Sand rock elastic wave experiment and its response characteristic analyze [J]. Journal of Central South University (Natural Science), 2003, 32(S2): 4–6.
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Foundation item: Project(2003034470) supported by the Postdoctoral Science Foundation of China; project supported by the Postdoctoral Science Foundation of Central South University
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Mao, Nb., Dai, Tg. & Peng, Sl. Subtle traps prediction using sequence stratigraphy and 3D seismic technology: A case study from Qikou depression in Huanghua basin. J Cent. South Univ. Technol. 12 (Suppl 1), 141–145 (2005). https://doi.org/10.1007/s11771-005-0388-z
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DOI: https://doi.org/10.1007/s11771-005-0388-z