Methods and Systems for Determining Reservoir Properties from Motor Data While Coring
AssigneeSaudi Arabian Oil Company
InventorsAnas Mohammedali Almarzooq, Shouxiang Mark Ma
Life of this patent
Estimating the term…
Abstract
Embodiments provide techniques for using data from a select set of wells to develop correlations between surface-measured properties, downhole coring parameters, and properties typically determined from subsurface measurements (e.g., from logging tool responses, core analysis, or other subsurface measurements). When new wells are drilled, the surface data acquired while drilling and coring parameters used downhole may be used as an input to these correlations in order to predict properties associated with subsurface measurements.
Claims20
A method for determining a characteristic of a subsurface formation, the method comprising:
- (i) receiving, by a processor, coring data from a coring operation performed on the subsurface formation, the coring data including a plurality of coring parameters;
- (ii) receiving, by the processor, values for one or more properties of the subsurface formation measured as a result of the coring operation;
- (iii) repeating steps (i) and (ii) for a plurality of coring operations;
- (iv) generating, by the processor, a computer model based on the coring data and the one or more properties obtained from the plurality of coring operations;
- and
- (v) deriving, by the processor, a relationship between the coring data and the one or more properties of the subsurface formation.
A system for determining a characteristic of a subsurface formation, the system comprising:
- a computer comprising non-transitory computer readable medium including program instructions that when executed by a processor cause the processor to perform the operations of:
- (i) receiving coring data from a coring operation performed on the subsurface formation, the coring data including a plurality of coring parameters;
- (ii) receiving values for one or more properties of the subsurface formation measured as a result of the coring operation;
- (iii) repeating steps (i) and (ii) for a plurality of coring operations;
- (iv) generating a computer model based on the coring data and the one or more properties obtained from the plurality of coring operations;
- and
- (v) deriving a relationship between the coring data and the one or more properties of the subsurface formation.
Dependencies are inferred from the claim text.