Geochemical Characterization and Evaluation Hydrocarbon Potential of the Pabdeh Formation in Hormoz Strait Area: Analysis of Source Rock Characteristics and Oil and Gas Production Potential
Subject Areas : محاسبات نرم در علوم مهندسی
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Keywords: Geochemical Characterization, Hydrocarbon potential, Pabdeh Formation, Rock-eval, Kerogene,
Abstract :
The Pabdeh Formation (Paleocene to Oligocene) lithologically consists of marl, limestone and shale and is considered as a candidate source rock in Persian Gulf area. In order to geochemical evolution of this formation, rock-eval pyrolysis was carried out on 58 cutting samples, in order to determine its hydrocarbon potentiality. Based on rock-eval data, the minimum, maximum and mean of geochemical parameters are S1: 0.06, 4.53 and 1.5; S2: 0.02, 16.32 and 3.65; S1 + S2: 0.1, 16.93 and 5.1; TOC: 0.07, 3.77 and 1.18. HI: 285, 583.7 and 240.1; Tmax: 391, 578 and 440.7 and PI: 0.03, 0.91 and 0.38. Based on the average of the obtained parameters, the organic matter of the Pabdeh Formation is type II and III kerogen, with low maturity being at the end of diagenesis stage and this rock shows the ability to produce oil and gas hydrocarbons. The hydrocarbon potential varies in different depths of the Pabdeh Formation. The lower up to the middle parts, have a fair to good hydrocarbon potential. In the middle parts of this formation have a very good and the upper parts have a weak hydrocarbon potential.
افشار حرب،ع. (1380)، زمین شناسی نفت ایران، انتشارات دانشگاه پیام نور
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