科研之友
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摘要
This study aims to uncover the possible source rocks of accumulated hydrocarbons in reservoir intervals of the Salman Oilfield, located in the central part of the Persian Gulf. Geochemical characteristics of 57 cutting samples of Albian to Devonian sediments of Salman Oilfield in the central of the Persian Gulf are examined. Rock-Eval Pyrolysis is used to identify susceptible source rocks of the Salman Oilfield. First, samples containing indigenous organic matter were selected from all analyzed samples. Based on Rock-Eval Pyrolysis of samples, the Kazhdumi Formation (Albian), the Dariyan Formation (Aptian), the Gadvan Formation (Lower Cretaceous), and the Zakeen Formation (Devonian) were selected as the most probable source rocks of the studied field. Total organic carbon and maximum temperature (T-max) of samples revealed that the Kazhdumi, Dariyan, and Gadvan Formations have only minor importance as potential source rocks within the studied formations. However, the quantity of organic matters, maturity, and hydrocarbon generative potential of the Zakeen Formation suggests it as the likeliest source rock among the studied samples. Presence of fairly matured kerogen type II/III and III indicates the studied intervals of Zakeen as a gas-prone formation. The maximum hydrocarbon that could be produced from Zakeen is also estimated using source rock potential index (SPIr) calculations. The formation is classified as a fair gas-prone source rock in the Salman Oilfield. It can be concluded that some of the accumulated gasses of Surmeh are originated from the Zakeen Formation.
- 出版日期2014-7
