... combined with the use of larger sand, more aggressive proppant schedules, and intense quality control has resulted in a significant increase in reserves through refracturing. conductivity fracture re-fracturing high sand concentration hydraulic fracturing fracture treatment closure technique...

... ABSTRACT This case history paper presents a method of analyzing fluctuation of sand concentration in a remotely controlled, automated fracturing system. In this case, job data taken from an automated and remotely controlled frac job was input to a computer model to help analysts determine...

... possible the above-mentioned improvements. and presents case histories of field applications. Proppant schedules and job data are also presented. agitator flow rate proppant slurry fracturing materials fracturing fluid agitator speed proppant concentration gal information sand concentration...

... ABSTRACT An investigation was initiated to optimize final sand concentrations and profitability in refracturing the North Ward Estes Field in Ward County, Texas. This study involved the construction of a fracture enhanced production model. The model relates the final fracture width...

.... This paper covers the mechanical hookup, computer programs relating to job design, sand concentrations obtainable, foaming agents and their concentrations, and a system of accurately monitoring foam quality down stream. Conventional equipment can be used to provide up to 2 pounds sand per gallon of provide...