公开(公告)号：US11846184B2

公开(公告)日：2023-12-19

申请号：US17305061

申请日：2021-06-30

Applicant: ExxonMobil Technology and Engineering Company

Inventor： David T. Wang ,  Cara L. Davis ,  Michael J. Formolo ,  Sarah E. Gelman ,  Michael Lawson ,  Clifford C. Walters ,  Yitian Xiao

IPC: E21B49/08 ,  G01N33/28 ,  G06F30/20 ,  G01V99/00 ,  G01N33/24

CPC classification number: E21B49/087 ,  G01N33/24 ,  G01N33/2823 ,  G01V99/005 ,  G06F30/20 ,  E21B2200/20

Abstract: A quantitative simulation process for producing quantitative model predictions of hydrocarbon composition. The quantitative simulation may include measuring a chemical and isotopic composition of a hydrocarbon sample from a hydrocarbon reservoir. The quantitative simulation may further include measuring geochemical data, geophysical data, and/or geological data for the hydrocarbon reservoir and/or source rock; deriving temperature versus time relationships from a basin model for the hydrocarbon reservoir and/or source rock based on the geochemical data, geophysical data, and/or geological data; generating estimated source-rock maturity parameters based on the temperature versus time relationships; generating an estimated compositional yield for hydrocarbon fractions based on the temperature versus time relationships and the chemical composition of the hydrocarbon sample; and generating, using a mass-conserving isotopic fraction (MCIF) simulator, an estimated isotopic composition of the hydrocarbon fractions based on the estimated compositional yield and the isotopic composition of the hydrocarbon sample.