WORKFLOW TO PREDICT SOURCE ROCK RICHNESS AND NET THICKNESS USING INTEGRATED INORGANIC, PYROLYSIS, AND WIRELINE DATA

• Main Authors: Washie, Maimona, Anifowose, Fatai A
• Format: Patent
• Language: English
• Published: 01.02.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; TESTING

A method to evaluate source rock richness is claimed. The method includes obtaining a source rock sample, collecting pyrolysis data from testing of the sample, filtering the pyrolysis data to produce a filtered pyrolysis data set, extracting a plurality of elements from their respective oxides and cross-checking the filtered pyrolysis data set with the plurality of elements. The method further includes discarding a plurality of unreliable data points from the filtered pyrolysis data set to produce a cross-checked data set, matching the cross-checked data set with wireline log data, determining a minimum value and a maximum value of the wireline log data that are within the cross-checked data set, and collecting depth thicknesses corresponding to the minimum value and the maximum value. The method also includes calculating a sum of the plurality of depth thicknesses, calculating a net source rock thickness, and calculating a corresponding average total organic carbon value.