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US 10,942,293 B2Granted
Rock physics based method of integrated subsurface reservoir characterization for use in optimized stimulation design of horizontal wells
AssigneeHalliburton Energy Services, Inc.
InventorsJacky Muri Wiener, Muthukumarappan Ramurthy, Donald Pat Kundert, John Bosco Le Tran, Meagan Renee Stephens
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Abstract
A procedure that integrates petrophysics and rock typing taken from vertical well measurements, 3D seismic elastic properties and seismic attributes, and geostatistical modeling to build a 3D reservoir model is provided. The 3D reservoir model may be directly incorporated into horizontal fracture model designs. The developed 3D reservoir model for a subsurface volume may be used in a fracture model to optimize fracturing designs and maximize well performance.
Claims20
A system, comprising:
- at least one well logging tool comprising a sensor for collecting downhole measurements in one or more wells formed within a 3D subsurface volume;
- a plurality of transmitters and geophones configured to collect 3D seismic data corresponding to the 3D subsurface volume;
- a processing component, wherein the processing component is configured to be selectively coupled to the at least one well logging tool and the plurality of geophones via an interface;
- and
- a memory component containing a set of instructions that, when executed by the processing component, cause the processing component to:
- analyze one or more sets of well log data collected by the at least one well logging tool to generate a petrophysical and geomechanical model of rock properties, wherein each set of well log data is associated with one of a plurality of wells located within the 3D subsurface volume, and wherein the rock properties correspond to locations along each of the plurality of wells;
- generate a 3D reservoir model of a reservoir characteristic distributed throughout the 3D subsurface volume based on the rock properties and 3D seismic data for the 3D subsurface volume, the reservoir characteristic being at least one of formation resistivity, effective porosity, water saturation, clay volumes, bulk density, hydrocarbon saturation, or rock type;
- input at least a portion of the 3D reservoir model into a 3D fracture stimulation model associated with one or more horizontal wells located within the 3D subsurface volume;
- and
- determine an optimized fracture operation to be performed on the well via the 3D fracture stimulation model and based on a net present value analysis of production expected for a particular stage of the well based on the 3D reservoir model.
7 more elements
A tangible, non-transitory, computer-readable medium comprising machine-readable instructions to:
- receive sets of well log data from one or more well logging tools, wherein the sets of well log data were previously collected via the one or more well logging tools;
- receive 3D seismic data for a 3D subsurface volume, wherein the 3D seismic data was previously collected via a plurality of geophones;
- analyze the sets of well log data to generate a petrophysical and geomechanical model of rock properties, wherein each set of well log data is associated with one of a plurality of wells located within the 3D subsurface volume, and wherein the rock properties correspond to locations along each of the plurality of wells;
- generate a 3D reservoir model of a reservoir characteristic distributed throughout the 3D subsurface volume based on the rock properties and the 3D seismic data for the 3D subsurface volume, the reservoir characteristic being at least one of formation resistivity, effective porosity, water saturation, clay volumes, bulk density, hydrocarbon saturation, or rock type;
- input at least a portion of the 3D reservoir model into fracture modeling software associated with one or more horizontal wells located within the 3D subsurface volume;
- and
- run the fracture modeling software on the portion of the 3D reservoir model to determine an optimized fracture operation to be performed on the well based on a net present value analysis of production expected for a particular stage of the well based on the 3D reservoir model.
4 more elements
A method, comprising:
- receiving digital well log data at a control system;
- receiving 3D seismic data corresponding to a 3D subsurface volume at the control system;
- analyzing the well log data to generate a petrophysical and geomechanical model of rock properties corresponding to locations along a plurality of wells within the 3D subsurface volume;
- generating a 3D reservoir model of a reservoir characteristic distributed throughout the 3D subsurface volume based on the rock properties and the 3D seismic data, wherein the reservoir characteristic comprises at least one of formation resistivity, effective porosity, water saturation, clay volume, bulk density, hydrocarbon saturation, or rock type;
- inputting data from the 3D reservoir model into a 3D fracture stimulation model associated with one or more horizontal wells located within the 3D subsurface volume;
- and
- determining an optimized fracture operation to be performed on the well via the 3D fracture stimulation model and based on a net present value analysis of production expected for a particular stage of the well based on the input data from the 3D reservoir model.
4 more elements
Dependencies are inferred from the claim text.