... , and V free water are volumes of electrostatic double layer, interlayer, and free water, respectively. We use UTCOMP_IPhreeqc, a multi-phase reactive transport simulator to model clay swelling-induced conductivity damage in hydraulic fractures. UTCOMP (The University of Texas Compositional...

... Shale appears to be gas-charged throughout its thickness in Canyon Creek Field. The entire Baxter interval is highly overpressured (0.72 to 0.88 psi/ft) and exhibits fair to excellent shows of gas during drilling against mud weights of 13 to 17 pounds per gallon. Multi-stage hydraulic fracture...

... Abstract The Denver-Julesburg (DJ) Basin has seen oil and gas production for more than a century. It is going through a new cycle of development with horizontal drilling and high-intensity hydraulic fracturing. Since the first horizontal wells in 2008 nearly 4,000 Niobrara and Codell...

... Abstract Hydraulic fracturing operations require large amount of water which, in some cases, could reach six million gallons per treatment. Fresh water, from surface and subsurface sources, is usually used to formulate the fracturing fluid. The use of produced water in hydraulic fracturing has...

... hydraulic fracturing natural fracture refinement grid accuracy mesh hydraulic fracture Fluid Dynamics simulation grid continuum grid flow in porous media Upstream Oil & Gas matrix permeability ultralow-permeability reservoir NFN discrete case cumulative gas production fracture...

... can create localized "pressure sinks." When a nearby infill well is fractured, the hydraulic fracture grows towards areas of lowest stress (the depleted area), which can damage the parent well. Subsequently, the production potential of the new well is decreased because it is now draining from the same...

... of hydraulic fracture and multi-stages fracturing can mitigate the negative effects on the formation of condensate bank, but the effects cannot be completely removed. A huff-n-puff methane injection has been proven to be an effective method to reduce the effect of condensate by maintaining the reservoir...

... the integrated model can be an efficient and useful tool for predicting and analyzing oil/gas production of naturally fractured reservoirs. flow in porous media Artificial Intelligence Upstream Oil & Gas Fluid Dynamics Reservoir Characterization hydraulic fracturing linear system modeling grid...

... what-if scenarios that are of current operational and economic significance. In particular, we investigate the impact of hydraulic fracture height, delayed drilling of the vertically offset horizontal wells, as well as horizontal well interference between Middle Bakken and Three Forks. The simulations...

.... In this study, we use both methods to history match the production of hydraulically fractured unconventional wells, followed by forecasting future production to establish a well's EUR (Estimated Ultimate Recovery) for reserves determination purposes. This study's goal is to quantify the differences one might...

... injection rate and light-weight proppant are beneficial in transporting proppant through fracture junctions to reach further in both hydraulic fractures and natural fractures. Proppant transport models developed in this work fully incorporate the interaction between proppant particles and carrying fluid...

... not affect the breakability of the new friction reducer. fracturing materials fracturing fluid pressure drop persulfate hydraulic fracturing Fluid Dynamics experiment sodium bromate proppant slickwater friction reduction performance friction reducer reducer flow in porous media Upstream...

... Abstract The advent of horizontal drilling technology and hydraulic fracture completions has fundamentally altered the geometry of flow in shale gas systems, requiring new decline curves to forecast production. In this work we perform automatic decline analysis on Marcellus gas shale wells...

... Abstract The successful development of unconventional reservoir relies on the massive hydraulic fractures which provide high conductive paths and large contact area between matrix and wellbore. Since well production always shows a steep decline after the early high flow rate, refracturing can...

... α, β (z) = Mittag — Leffler function; see Eq. 14 h = thickness [L] K v (z) = modified Bessel function of the Second Kind of order v k = permeability [L 2 ] k f = permeability of hydraulic fracture [L 2 ] k α = see Eq. 2 I v (z) = modified...

..., reservoir, and production data, the anomalous diffusion model has the potential to capture the production characteristics. Moreover, the model can be used to run sensitivities on actual system variables such as hydraulic fracture length, height and spacing, as well as to account for changing operating...

... Abstract Surfactants are one of the essential additives included in hydraulic fracturing fluids to decrease interfacial tension to improve flow back to the surface for better well productivity. The surfactant can be adsorbed on the formation surface, changing reservoir wettability, which can...

... Abstract Uniform distribution of fracture apertures is widely used in reservoir simulation of production from hydraulically fractured unconventional reservoirs. Laboratory experiments, however, reveal that changes in effective stress create uneven distribution of fracture apertures...

... mechanical isolation. re-fracturing Upstream Oil & Gas hydraulic fracturing completion liner lateral fracture sleeve monthly production perforation production graph proppant case study mechanical isolation restimulation operator original completion slimhole system isolation BOE...

... intermediate strength ceramics using standard and modified API RP 19-C crush resistance tests. During testing, load cell volumes range from the standardized 4lb/ft 2 to the modified 0.5 and 0.25lb/ft 2 . 0.5 and 0.25lb/ft 2 volumes simulate proppant behavior in hydraulic fractures with frac widths...