层序地层学研究新进展

Some new achievements in sequence stratigraphy research

2 0 0 2年AAPG年会对层序地层学研究新进展的总结主要包括 :①提出运动学层序和体系域、地球半径周期性变化引起的深海盆地千米级规模的海平面变化、深海页岩层序识别和陆架边缘崩塌基准面及崩塌层序等新理论 ,提出气候变化是高频层序形成的主控因素 ,验证了米兰柯维奇旋回中 40× 10 4a离心率周期造成海平面变化的理论 ;②在碳酸盐岩层序地层学、成岩作用与层序地层学关系研究方面以及层序地层学在含油气系统、圈闭预测、储集层和油气藏精细描述、烃源岩预测以及油藏开发动态模拟等方面的应用均取得较大进展 ;③除传统的露头观察、岩心描述、地震和测井资料处理与解释之外 ,新增加了古生物高分辨率层序地层研究、样品分析测试与有机地化研究、三维可视化、地震智能化分析、地质统计、数值模拟与模式识别等新方法。

Sequence stratigraphy research is an important subject in 2002 annual meeting of AAPG. Its new achievements summarized the recent progress on sequence stratigraphy research in one year. The principle parts contain:①Some new theories were put forward, such as kinematics tract, periodic change of earth radius resulting in change of sea level over one thousand meter in deep sea basin, recognizing sequence of deep sea shale, landslip datum plane in continental shelf edge and sequence of landslip and the change of climate being the principal motivity that form high resolution sequence, which validate the system that change of sea level is led by 400,000 years eccentricity period of Milancovth cycle; ②There are big achievements in the application of sequence stratigraphy, for example carbonate sequence stratigraphy, the relation between diagenesis and sequence stratigraphy, sequence stratigraphy applied in oil and gas system, forecasting trap, fine description of reservoir, forecasting hydrocarbon source rock and simulation expoitation developments of reservoir; and ③In addition to traditional methods such as out crop examination, core description, explained seismic and log data processing and interpretation and so on, some new methods such as the high resolution sequence stratigraphy of palaeotology, the sample analyzing and testing and organic geochemistry, 3 D vidualization, intelligentized analyzing of seismic attributes, geostatistics, numerical simulation, pattern recognition and so on are introduced.