Abstract: A downhole testing and sampling system includes a downhole tool, a conveyance system, and a testing and sampling tool forming a portion of the downhole tool. The testing and sampling tool including a first sampling modality and a second sampling modality. One or both of the first sampling modality or the second sampling modality may be deployed to collect a formation sample based, at least in part, on one or more formation properties.

Abstract: A system and method for determining reservoir fluid contamination of a reservoir is disclosed. The system includes one or more sensors to detect field measures from reservoir fluid of the reservoir and includes memory and at least one processor to execute instructions from the memory to cause the system to perform further steps. A step by the at least one processor is to simulate relationship data having purity levels correlated to volumes or times associated with extraction of an applied or simulated fluid for varying modeled rock formations. A further step is to fit one or more of the relationship data to the field measures to generate errors. Yet another step is to determine the reservoir fluid contamination from one of the purity levels that is associated with the relationship data that is within a threshold error value or error range of the errors.

Abstract: Examples described herein provide a downhole sampling method that includes receiving fluid data from a fluid downhole in a wellbore operation. The method further includes defining a subset of the fluid data and a remaining subset of the fluid data. The method further includes iteratively generating, by a processing device, a plurality of curves fit to the subset of the fluid data. The method further includes performing, by the processing device, a validation on the plurality of curves as applied to the remaining subset of the fluid data to determine one or more best fit curves from the plurality of curves.

Abstract: Examples described herein provide a downhole sampling method that includes receiving fluid data from a fluid downhole in a wellbore operation. The method further includes defining a subset of the fluid data and a remaining subset of the fluid data. The method further includes iteratively generating, by a processing device, a plurality of curves fit to the subset of the fluid data. The method further includes performing, by the processing device, a validation on the plurality of curves as applied to the remaining subset of the fluid data to determine one or more best fit curves from the plurality of curves.