圣华金盆地南部贝克斯菲尔德背斜区早中新统Ｓｔｅｖｅｎｓ砂岩层深海砂体在沉积物重力流作用下沉积而成，是美国最重要的产油气单元之一。Ｓｔｅｖｅｎｓ砂岩曾被认为是由内谢拉华达山（ＳｉｅｒｒａＮｅｒａｄａ）南部脱落的厚的沉积岩层序。利用测井和岩心数据计算出的二维 Deep-sea sand bodies of the Bakersfield anticline in the Bakerfield anticline in the southern part of the San Joaquin Basin deposited in sediments under the gravity flow of sediments are one of the most important oil and gas producing units in the United States. Stevens sandstone was once considered a thick sedimentary sequence that fell off the southern Sierra Nerada. Two-dimensional calculated from logs and core data