Abstract: The invention is a method for determining at least one of the quantity and the quality of the hydrocarbons generated by maturing of the organic material of a mother rock of a sedimentary basin based on values representing the artificial maturation of an immature sample representing the mother rock and a sequence of artificial maturing temperatures. The method according to the invention determines the values of the kinetic parameters of a reaction rate law by minimizing simultaneously: (i) a difference between the values predicted by the reaction rate law applied with a historical record of temperatures of the basin determined by basin simulation and the measurements of the advance of the maturation of the organic material and (ii) a difference between the values predicted by the reaction rate law applied according to the sequence of temperatures for the artificial maturing and the values representing the artificial maturing.

Abstract: The invention relates to a method of determining a dominant hydrocarbon migration mechanism in a sedimentary basin, using a numerical basin simulation simulating a hydrocarbon migration according to at least two migration mechanisms and measurements of physical quantities performed in the basin. A numerical basin simulation and a gridded representations of different states is used to determine a contribution of each hydrocarbon migration mechanism for each state for the cells of the gridded representation of this state.

Abstract: The present invention is a method for determining at least one of the quantity and the quality of the hydrocarbons present in a sedimentary basin, by use of a numerical basin simulator containing a kinetic model. The kinetic model is applied with kinetic parameters in order to reproduce the transformation of the organic matter into at least one chemical compound under the effect of an increase in temperature. The present invention converts kinetic parameters relating to a first compositional representation into kinetic parameters relating to a second compositional representation, by use of a compositional reference established from reference source rocks and from the level of transformation of a reference rock.

Abstract: The invention is a method for determining at least one of the quantity and the quality of the hydrocarbons generated by maturing of the organic material of a mother rock of a sedimentary basin based on values representing the artificial maturation of an immature sample representing the mother rock and a sequence of artificial maturing temperatures. The method according to the invention determines the values of the kinetic parameters of a reaction rate law by minimizing simultaneously: (i) a difference between the values predicted by the reaction rate law applied with a historical record of temperatures of the basin determined by basin simulation and the measurements of the advance of the maturation of the organic material and (ii) a difference between the values predicted by the reaction rate law applied according to the sequence of temperatures for the artificial, maturing and the values representing the artificial maturing.

Abstract: The invention relates to a method for modeling a sedimentary basin, said sedimentary basin having undergone a plurality of geological events defining a sequence of states {Ai} of the basin, each of said states extending between two successive geological events, the method comprising the implementation by data processing means (21) of steps of: (a) Obtaining measurements of physical quantities of said basin, which are acquired from sensors (20); (b) For each of said states Ai, constructing a meshed representation of said basin depending on said measurements of physical quantities; (c) For each of said states Ai, and for each cell of said meshed representation, computing an overpressure in the cell at the end of the state Ai by solving an equation of the Darcy equation type; characterized in that step (c) comprises a prior step (c).

Abstract: The invention relates to a method for modeling a sedimentary basin, said sedimentary basin having undergone a plurality of geological events defining a sequence of states {Ai} of the basin, each extending between two successive geological events, the method comprising the implementation by data processing means (21) of steps of: (a) Obtaining measurements of physical quantities of said basin, which are acquired from sensors (20); (b) For each of said states Ai, constructing a meshed representation of said basin depending on said measurements of physical quantities; (c) For each of said states Ai, and for each cell of the meshed representation, 1. computing an effective stress applied to the cell at the end of the state Ai; 2. computing an overpressure in the cell at the end of the state Ai depending on said effective stress computed at the end of the state Ai.