... directional drilling drillstem testing flow in porous media production monitoring equation of state modeling & simulation reservoir geomechanics fracture hydraulic fracturing reservoir surveillance production control technology conference mechanism exhibition spe hydraulic fracturing...

... sand united states government loader operator mechanism frac operation blender tub novel multi-modal system Background From 2010 to 2016 nearly all frac sand originated in Wisconsin and Minnesota from a glacially formed sandstone millions of years ago. It was perceived by the industry...

... and total compressibility during these two flowback periods. Compared to the IFB period, the V ef is generally decreased during the SFB period. The loss percentage of effective fracture volume ( R Vef ) is estimated at 10-40%. We also compare the drive mechanisms for the two flowback periods...

... A better understanding of the mechanism generating closely spaced fractures is extremely important. It can aid the design/optimization of stimulation methods to further increase the reservoir contact area under tight financial and environmental constraints. This topic has attracted extensive...

..., and hydrology is proposed to characterize the spatiotemporal evolution of hydraulic fracturing-induced seismicity. The seismogenic faults in the vicinity of stimulated wells are derived from the focal mechanisms of mainshock event and lineament features of induced events. In addition, the propagation...

... interface slippage and natural fault re-activation are dominant mechanisms for hydraulic fracture induced casing failures. Examples of micro-fracs, micro-seismic and other diagnostics will be presented aiming to document the practical difficulties encountered while completing wells in these complex...

... Abstract Mine-back experiments, lab experiments, and cores taken through fractured rock show that hydraulic fracturing treatments can create swarms of fractures. Subcritical crack growth, microcracking ahead of the fracture tip and failure of weak planes in the rock are mechanisms that have...

... in that layer in a high rate, resulting in lower pressure as a negative feedback mechanism. Since breaking into an adjacent rock layer with higher in situ stress requires pressure corresponding to the higher stress, this kind of abrupt stress change can effectively terminate a fracture's vertical growth...

... Abstract Fracture height control is an important concern in stimulation design. Existing knowledge of interaction mechanisms between hydraulic fractures, natural fractures, and source rock fabric has been largely obtained from 2D or pseudo-3D models. The recent advances in full-3D hydraulic...

... then be characterized in terms of its ability to percolate fluids. We compare how cracks behave for a regular geometric shot cluster (GSC) and a variable shot cluster (VSC) and assess variations in the stimulations. Both shot clusters were completed in consecutive stages of the same lateral. The mechanisms from...

... ways; by stage, every 5 minutes within a stage, by fluid type, and by magnitude to understand the azimuthal, stress and completions controls on the mechanics and the productivity. The treatments of the two wells have very different spatial patterns of microseismic events as detected by both surface...

... and Discussion Five Wells Results Abstract Many studies have assessed microseismic (MS) interpretation, and its source mechanisms in hydraulically fractured shale wells. However, the ability to derive stimulated reservoir volume (SRV) and fracture geometry from MS data is still controversial...

... math, these authors have, in some cases, ignored the physical processes that drive the observed pressure behavior. This paper seeks to explain the mechanical and physical processes that can occur during the fracture extension and closure process of a DFIT, with a minimum of equations or abstract...

... hydraulic fracturing criterion mechanism fracture propagation Upstream Oil & Gas weak horizontal interface net pressure activation weak interface Chuprakov fracture height containment horizontal interface hydraulic fracture height containment fracture contact containment...

... that there are two primary mechanisms for the enhanced particle suspending under the orthogonal shear—shear thickening and elastic lifting. The relative importance of the two factors depends on the shear rate and fluid relaxation time. Specifically, the ratio of the elastic and viscous contribution to particle...

... of this concern. Microseismic monitoring provided the opportunity to identify fault interaction in real-time and analyse the mechanisms of interaction after the job. The integration of treatment data with the microseismic results proved essential for the analysis in both real-time and post-job. real time...

... the permeability is very low. The important role of pore pressure can be implemented in fracture modeling although some parameters, governing pressure changes at the fracture tip may be hard to obtain. However, it appears that this simple mechanism is open to quantification for improved fracture modeling. Theory...

.... Reservoir Characterization fracture intensity hydraulic fracturing Stimulation Program Upstream Oil & Gas fracture length orientation fracture complexity stimulation perforation mechanism fracture orientation society of petroleum engineers Effectiveness completion fracture spe 168591...

... along the surface of the settled proppant bank in a process known as reptation or creep. At even higher velocities, proppant grains bounce off the surface back into the flowstream, in a process termed saltation. In thin fluids, saltation is the dominant mechanism governing proppant transport. Most...

... Seismic events inherently are bandlimited due to the nature of the generation process and their source failure mechanisms. The dominant frequencies generated for these events are related to the stopping phase of the rupture, which can then be related to the source dimensions (source radius...