METHOD FOR CHARACTERIZATION OF HYDROCARBON RESERVOIRS
摘要
A methodology that performs fluid sampling within a wellbore traversing a reservoir and fluid analysis on the fluid sample(s) to determine properties (including asphaltene concentration) of the fluid sample(s). At least one model is used to predict asphaltene concentration as a function of location in the reservoir. The predicted asphaltene concentrations are compared with corresponding concentrations measured by the fluid analysis to identify if the asphaltene of the fluid sample(s) corresponds to a particular asphaltene type (e.g., asphaltene clusters common in heavy oil). If so, a viscosity model is used to derive viscosity of the reservoir fluids as a function of location in the reservoir. The viscosity model allows for gradients in the viscosity of the reservoir fluids as a function of depth. The results of the viscosity model (and/or parts thereof) can be used in reservoir understanding workflows and in reservoir simulation.
申请公布号
CA2860860(A1)
申请公布日期
2013.07.25
申请号
CA20132860860
申请日期
2013.01.17
申请人
SCHLUMBERGER CANADA LIMITED
发明人
ZUO, YOUXIANG;MULLINS, OLIVER C.;DUBOST, FRANCOIS XAVIER;AYAN, COSAN;ABDALLAH, WAEL;POMERANTZ, ANDREW E.;ZHANG, DINGAN