PYROLYSIS TO DETERMINE HYDROCARBON EXPULSION EFFICIENCY OF HYDROCARBON SOURCE ROCK

摘要

Some examples of pyrolysis to determine hydrocarbon expulsion efficiency of hydrocarbon source rock can be implemented by performing an open system pyrolysis of a hydrocarbon source rock sample obtained from a natural system. Sample includes hydrocarbon source rocks having an equivalent spherical diameter of substantially at least one centimeter. After the open system pyrolysis, the sample can be crushed and thermally vaporized. A hydrocarbon expulsion efficiency of hydrocarbon source rock in the natural system can be determined based on hydrocarbons recovered in response to the open system pyrolysis and in response to the crushing and thermal vaporization.

主权项

1. A method comprising:
performing an open system pyrolysis of a hydrocarbon source rock sample obtained from a natural system, the hydrocarbon source rock sample comprising hydrocarbon source rocks having an equivalent spherical diameter of substantially at least one centimeter; recovering hydrocarbons released by the hydrocarbon source rock sample in response to the open system pyrolysis; performing a thermo-vaporization on the pyrolyzed hydrocarbon source rock sample on which the open system pyrolysis was performed; recovering hydrocarbons released by the pyrolyzed hydrocarbon source rock sample in response to the thermo-vaporization; and determining a hydrocarbon expulsion efficiency of hydrocarbon source rock in the natural system based on the recovered hydrocarbons released by the hydrocarbon source rock sample in response to the open system pyrolysis and based on the recovered hydrocarbons released by the pyrolyzed hydrocarbon source rock sample in response to thermo-vaporization.