砂砾岩扇体发育特征及地震描述技术

Features and seismic description of glutenite segment

胜利石油管理局地球物理勘探开发公司,东营257100

Geophysical Exploration and Development Corporation, Shengli Petroleum Administration, Dongying 257100

箕状断陷盆地陡坡带具有坡度陡、物源近及构造活动强烈、古地形复杂等特点,以断裂带为依托发育了洪积扇、辫状河三角洲、扇三角洲、近岸水下扇、深水浊积扇、滑塌浊积扇等 6类砂砾岩扇体。本文在对砂砾岩扇体的沉积类型及特征、地震相模式、成藏规律细致研究的基础上。

The zone of abrupt slope have characters such as large slope, near provenance, complex palaeorelif and violent tectonic movement for the half graben like depression basin. It growed up 6 glutenite segments depending on fracture belt, such as torrential fanglomerate, braided stream delta, fan delta, offshore submarine fan, deep sea turbidity fan and fluxoturbidite fan. This paper summed up the seismic description technology suiting the glutenite fan based on detailed research for sedimentary type and feature of the glutenite fan, seismic faces model,reservoir forming law. The technology is used in the northern slope of DY,CZ sag. Remarkable results are obtained.