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Evaluation of reservoir and hydraulic fracture properties in multilayer commingled reservoirs using commingled reservoir production data and production logging information
Evaluation of reservoir and hydraulic fracture properties in multilayer commingled reservoirs using commingled reservoir production data and production logging information
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机译：利用混合储层产量数据和生产测井信息评估多层混合储层的储层和水力压裂特性
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摘要
A method of and process for fractured well diagnostics for production data analysis for providing production optimization of reservoir completions via available production analysis and production logging data provides a quantitative analysis procedure for reservoir and fracture properties using commingled reservoir production data, production logs and radial flow and fractured interval analyses. This permits the in situ determination of reservoir and fracture properties for permitting proper and optimum stimulation treatment placement and design of the reservoir. The method is a rigorous analysis procedure for multilayer commingled reservoir production performance. Production logging data is used to correctly allocate production to each completed interval and defined reservoir zone. This improves the simulation and completion design and identifies zones to improve stimulation. The method supports computing the individual zone production histories of a commingled multi-layered reservoir. The data used in the analysis are the commingled well production data, the wellhead flowing temperatures and pressures, the complete wellbore and tubular goods description, and production log information. This data is used to construct the equivalent individual production histories. The computed individual completed interval completed interval production histories that are generated are the individual layer hydrocarbon liquid, gas, and water flow rates and cumulative production values, and the mid-completed interval wellbore flowing pressures as a function of time. These individual completed interval production histories can then be evaluated as simply drawdown transients to obtain reliable estimates of the in situ reservoir effective permeability, drainage area, apparent radial flow steady-state skin effect and the effective hydraulic fracture properties, namely, half-length and conductivity.
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