subage

基本解释

The diagenesis is good and belongs to subage of A type in late diagenesis period.
储层孔隙以次生成因为主,发育粒内溶孔及微孔隙,粒间孔隙多被充填。
It has various kinds of diagenesis types and the diagenesis stage belongs to subage of type B in an early stage.
孔隙结构以粗孔粗喉型为主,中孔中喉型次之;黏土矿物包括高岭石、伊利石、伊/蒙混层等,其中高岭石含量最高,具有潜在速敏性。
The fan delta was developed again because the lake regression occurred during the Chang 6 Subage, but the scale was smaller than that of the Chang 8 Subage.
长6亚期湖退导致扇三角洲再次发育，但规模较长8亚期小。
The turbidite system was well developed in the Chang 7 Subage because the lake basin subsided, the periphery was uplifted strongly and the lakeshore was very steep.
长7亚期随着湖盆沉降，周边抬升强烈，湖岸较陡，大量发育浊积体系；
Reservoirs in member H3 of Yanglou Oilfield is at the early diagenetic stage B subage period,the diagenesis of which can be divided into mechanical compaction,cementation and denudation.
杨楼油田核三段储层成岩阶段为早成岩阶段B亚期,成岩作用主要有机械压实作用、胶结作用、溶蚀作用三种,成岩作用阶段也是储层孔隙演化的过程。