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Sequential Assimilation of Tracer Test Data by Ensemble Kalman Filter for Fracture Identification
Ensemble Kalman filter Sequential data assimilation Tracer test Fracture CVBEM
2010/9/8
Application of the ensemble Kalman filter (EnKF) to reservoir characterization has the limitation that the observed watercut data cannot be reflected for tuning model variables in some time intervals....
Automatic Data Acquisition System for Offshore Oil Pipeline Magnetic Flux Leakage On-line Inspection
Pipeline inspection Magnetic flux leakage Adaptive filter Data compression
2009/7/24
In order to assure the safety of oil pipeline transmission, it is very important to continue routine inspection of offshore pipelines to identify defects or corrosions as early as possible. A high-sp...
A Systematic Approach to Enhance the Quality of PVT Experimental Data for Gas Condensate Reservoir Evaluation
Equation of state Condensate Natural gas Reservoir Constant volume depletion PVT
2009/7/24
Increased demand for gas supply by industry in recent years has promoted the search for optimum strategies to evaluate the performance of dry gas and gas condensate reservoirs. Equations of state (EO...
Geological modeling of the oil sands reservoir by integrating the borehole and seismic data in the JACOS Hangingstone SAGD operation area, Athabasca, Canada.
oil sands SAGD geological model sequence analysis acoustic impedance inversion
2009/4/24
Three dimensional geological models were constructed in the JACOS Hangingstone SAGD operation area, Alberta, Canada, integrating three dimensional seismic data of 5.4 square kilometers and 76 well d...
Evaluation of waterflooding performance utilizing core analysis data for carbonate reservoir, offshore Abu Dhabi
pore system pore size distribution wettability carbonate
2009/4/20
The field of interest is a heterogeneous carbonate reservoir, offshore Abu Dhabi. A pore system in the field is classified into three categories based on the pore throat size, i.e. macropore, mesopo...
Integration of geological and geophysical data in effective permeability modeling of a carbonate reservoir influenced by fractures in a giant oil field offshore Abu Dhabi
fracture curvature analysis carbonate reservoir reservoir model
2009/4/20
Premature water breakthrough of injection water has been observed in some oil producers under five-spot pattern scheme in a carbonate reservoir of a giant oil field, offshore Abu Dhabi. Preferential ...
Additional and re-perforations in a fractured well based on production logging data
hydraulically fractured well additional perforation production logging non-Darcy effect
2009/4/20
In the Minami Nagaoka gas field located in Niigata Prefecture, Japan, additional perforations were conducted in a hydraulically fractured well to increase the productivity of the well. To our best k...
Subsurface basement structure inferred from resistivity and gravity data around the Muramatsu active fault, the eastern margin of the Niigata sedimentary basin, central Japan
resistivity gravity basement inversion tectonics Muramatsu Fault
2009/4/13
In order to clarify the subsurface pre-Tertiary basement structure at the eastern margin of the Niigata plain, we carried out remote sensing, geological, electromagnetic and gravity surveys at Muram...
New Deconvolution Methods for Well Test and Production Data Analysis
Well Test Production Data Analysis
2008/10/27
The deconvolution method has received much attention recently, and is becoming one of the major tools for well test and production data analysis. Here, we present several new deconvolution algorithms,...