In order to establish the relationship between hydrocarbon characteristic variations and dynamic environments. the differences of hydrocarbon geochemical characteristics of reservoirs in various pressure systems (overpressure zone. transitional pressure zone and normal pressure zone) were studied. The Dongying and Zhanhua sags in the Jiyang Depression of the Bohai Bay Basin were taken... https://countryscenesaddleryandpetsuppliers.shop/product-category/halter-bridle-bag-with-3-hook-rack/