National Assessment of Oil and Gas Project - San Joaquin Basin Province (010) Pod(s) of Mature Source Rock

The Pod (or pods) of Mature Source Rock is a critical element of the Total Petroleum System and incorporates all source rocks that potentially have generated hydrocarbons within the system. The Pod(s) of Mature Source Rock is shown here as a geographic boundary defined and mapped by the geologist responsible for the province, and incorporates the known limit of thermally mature, organic-rich source rock(s) that is responsible for generating and expelling discovered and undiscovered petroleum accumulations, shows, or seeps within the Total Petroleum System. The Pod(s) of Mature Source Rock boundary was mapped by the province geologist after studying the extent of the source rock facies and the temperature and burial histories of the source rock within the province or basin. Thermal maturity studies are typically performed through investigations of geothermal gradient using well data, and thermal modeling calculations and commercial computer programs, such as BasinMod.成熟烃源岩灶（Pod of Mature Source Rock）是全油气系统（Total Petroleum System）的关键组成要素，涵盖了该系统内所有具备烃类生成潜力的烃源岩。本次研究中，成熟烃源岩灶以地理边界的形式呈现，该边界由负责该油气省的地质学家划定并编绘，其范围包含了热演化成熟、富有机质烃源岩的已知分布边界——这类烃源岩是全油气系统内已发现、未发现油气聚集、油气显示或渗漏的生成与排驱来源。成熟烃源岩灶的边界由对应油气省或盆地的地质学家，在调研烃源岩相展布范围以及烃源岩的温度与埋藏史后编绘完成。热演化成熟度研究通常依托钻井数据开展地温梯度调查、热模拟计算，并借助 BasinMod 等商用计算机程序完成。