Exxonmobil Upstream Research Company

Michael Edward McCracken

Timothy G Benish

Jeff H Moss

Clifford C Walters

Nancy Hyangsil Choi

Methods and systems are provided for fracturing rock in a formation to enhance the production of fluids from the formation. In one exemplary method, one or more wells are drilled into a reservoir, wherein each well comprises a main wellbore with two or more lateral wellbores drilled out from the main wellbore. One or more explosive charges are placed within each of the two or more lateral wellbores, and the explosive charges are detonated to generate pressure pulses which at least partially fracture a rock between the two or more lateral wellbores. The detonations are timed such that one or more pressure pulses emanating from different lateral wellbores interact.

System and method for fracturing rock in tight reservoirs

Methods and system for incorporating downhole and surface data with models and adjustment algorithms to back allocate flow rates of commingled zones. The models include fluid flow in the reservoir and wellbore, pressure drop across a choke, and fluid flow in the well completion. The models are coupled with an algorithm for comparing the results from the individual commingled zones to the total cumulative commingled volume and adjusting at least one predicted rate so that they match the measured flow rate over a specified time period. One method utilizes a reassignment factor for the adjustment of the predicted rates. These comparisons and allocation adjustments can be accomplished even when the frequency of the commingled flow rate and cumulative measurements, and the frequency of the predicted rates from the model differ from each other and the specified time period.

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Flower Mound, TX, United States of America

Michael Edward McCracken