本文關(guān)鍵詞： 致密油 烴源巖 分級評價 排烴 超壓 松遼盆地南部　出處：《石油勘探與開發(fā)》2017年03期 　論文類型：期刊論文

【摘要】：以松遼盆地南部為研究區(qū),基于物質(zhì)平衡法對源巖的排烴強度進行定量評價,利用PetroMod軟件的超壓模塊對源巖內(nèi)超壓進行評價。通過建立源巖排烴強度與殘余有機碳含量及超壓的關(guān)系,根據(jù)拐點確定出巖石排烴量2 mg/g、殘余有機碳含量0.8%、超壓1 MPa為致密油源巖的下限,提出巖石排烴量8 mg/g、殘余有機碳含量2.0%、超壓7 MPa為致密油優(yōu)質(zhì)源巖的界限。據(jù)此,將致密油源巖劃分為優(yōu)質(zhì)源巖(Ⅰ類)、低效源巖(Ⅱ類)、無效源巖(Ⅲ類)。利用致密油源巖的下限及分級評價標(biāo)準(zhǔn)對松遼盆地南部致密油有利區(qū)分布范圍進行評價,結(jié)果顯示優(yōu)質(zhì)源巖對致密油分布具有顯著的控制作用,優(yōu)質(zhì)源巖發(fā)育區(qū)及鄰近層位是致密油富集的有利區(qū)。圖8表2參52
[Abstract]:Taking the southern part of Songliao Basin as the study area, the hydrocarbon expulsion intensity of the source rock was quantitatively evaluated based on the material balance method. The overpressure in the source rock is evaluated by the PetroMod software, and the relationship between the hydrocarbon expulsion intensity and the residual organic carbon content and the overpressure of the source rock is established. According to the inflexion point, the rock hydrocarbon expulsion capacity is determined to be 2 mg / g, the residual organic carbon content is 0.8, the overpressure is 1 MPa as the lower limit of the tight source rock, and the rock hydrocarbon expulsion amount is proposed to be 8 mg/g. The residual organic carbon content is 2.0, and the overpressure of 7 MPa is the boundary of the high quality source rock. According to this, the tight source rock can be divided into high quality source rock (type 鈪，

本文編號：1478548