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陆家堡凹陷上休罗统是裂谷盆地断陷期的产物，相当于P.R.Vail提出的一个二级层序，可划分为三个层序边界（SBI、SBZtSB3）、两个三级层序（层序八层库四、研究认为：构造沉降和古地理背景是该区层序地层的主要控制因素，制约了各体系域发育规模和沉积组合特点．层序A可识别出低水位体系域、湖泊扩张体系域和湖泊收缩体系域，发育了该区主要的生储盖组合．层序B只由湖泊扩张体系域、湖泊收缩体系域组成，其湖泊扩张体系域是区域盖层和次要的源岩，湖泊收缩体系城虽然发育了良好的储层，但因缺乏区域盖层，只是次要目的层．
The Upper Hulusuo Formation in the Lujiabao sag is a product of the rift-rift period in the rift basins, which is equivalent to a second-order sequence proposed by PRVail. It can be divided into three sequence boundaries (SBI, SBZtSB3), two third- (Sequence 8-storey database 4) The study suggests that tectonic subsidence and palaeogeomorphic background are the main controlling factors of sequence stratigraphy in this area, which restrict the development scale and sedimentary assemblage characteristics of each system tract. Sequence A can identify lowstand system tract , Lacustrine expansion system lacustrine system and lacustrine contraction system tract, and the main source-reservoir-cap assemblage is developed in this area.The sequence B consists of lacustrine expansion system lacustrine and lacustrine contraction system lacustrine, and its lacustrine expansive system is the regional caprock and minor Although the source rocks and lake shrinkage systems developed good reservoirs, they are only secondary targets due to the lack of regional cap rocks.