Comparative analyses of petroleum generation potential, reservoir volume, frackability, and oil mobility were conducted on 102 shale cores from the Dongpu Depression. Results show the shale has high organic matter contents composed of oil-prone type I and type II kerogens within the oil window. Various types of pores and fractures exist in the shale, with a porosity of up to 14.9%. The shale has high brittle mineral contents, extensive fractures, and high potential for oil mobility due to high seepage capacity and overpressure. Although the petroleum generation potential of the shale at Well PS18-8 is relatively greater than that at Well PS18-1, oil content of the latter is greater due to the greater TOC. The porosity and fracture density observed in Well PS18-1 are greater and more conducive to shale oil enrichment. Although the shales in Wells PS18-1 and PS18-8 have similar brittle mineral contents, the former is more favorable for anthropogenic fracturing due to a higher preexisting fracture density. Besides, the shale at Well PS18-1 has a higher seepage capacity and overpressure and therefore a higher oil mobility. The fracture density and overpressure play key roles in shale oil enrichment.

对东圃De陷的102个页岩岩心进行了生油潜力，储层容量，压裂性和石油流动性的对比分析。结果表明，在油窗内，页岩有机物含量高，由易油的I型和II型干酪根组成。页岩中存在各种类型的孔隙和裂缝，孔隙率高达14.9％。页岩具有高脆性矿物含量，广泛的裂缝以及由于高渗流能力和超压而具有很高的油活动性的潜力。尽管PS18-8井页岩的生油潜力相对大于PS18-1井，但由于TOC较大，后者的含油量也更高。在PS18-1井中观察到的孔隙度和裂缝密度更大，更有利于页岩油的富集。尽管PS18-1和PS18-8井中的页岩具有相似的脆性矿物含量，但由于较高的预先存在的裂缝密度，前者更适合于人为压裂。此外，PS18-1井的页岩具有较高的渗透能力和超压，因此具有较高的油流动性。裂缝密度和超压在页岩油富集中起关键作用。