... the Hydraulic Fracturing Test Site 2 (HFTS-2) development, multiple fracture diagnostic methods were used to calibrate hydraulic fracture models. Once the model was calibrated, a new proppant-conductivity algorithm assigned conductivity values along the hydraulic fractures based on a physics-based model...

... approach is based on the industry’s emerging recognition that hydraulic fractures in shale are planar at large scale, while being rough and complex at small scale. In the simulator, constitutive relations are used to account for the effect of small-scale complexity on processes such as proppant transport...

... “another advantage of reducing stage length is that injection rate into the hydraulic fractures is increased, which leads to increased fracture width and improved proppant transport.” The offset-well observations mentioned were in a recent paper by Devon Energy that reported on a test which concluded...

... stress to overcome vertical drainage issues. geologist geology hydraulic fracturing united kingdom government fracturing fluid europe government upstream oil & gas proppant fracturing materials sedimentary rock clastic rock rock type fracture clair phase 1 perforation hydraulic...

... poroelastic stress response from depletion, multiwell fracture interaction, asymmetric fracture growth, multiphase flow in hydraulic fractures as they are reopened during a frac hit, and proppant remobilization. Numerical models force a self-consistent representation of physics. Every model output...

... of continuity, all potentials reported in the complete paper are in relation to the Ag/AgCl reference electrode and require a positive adjustment of approximately 0.21 V. Copyright 2022, Unconventional Resources Technology Conference 1 9 2022 1 9 2022 1 9 2022 1 9 2022 proppant...

... treatments in a challenging shale play in the Sichuan region of China achieved record proppant placements and, just as importantly, demonstrated repeatability and consistency over time, which had not previously been attained. Geological Setting The Sichuan Basin in southern China is a very active...

...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 204153, “Reducing the Placement Cost of a Pound of Proppant Delivered Downhole,” by Jon Sochovka, SPE, Kyle George, and Howard Melcher, Liberty Oilfield Services, et al. The paper has...

... unexpected deviations from the design. A common mitigation measure is to adjust chemical concentrations, then adjust proppant concentrations, and then, as a last resort, change the pumping rate. While proppant and chemical changes can affect fluid-flow dynamics positively, their use also represents one...

...Stephen Rassenfoss Completion engineers have figured out some rules of thumb about how proppant flows based on decades of experience. That knowledge was put to the test when GEODynamics created a fracturing surface test that offered a full-size, full-pressure recreation of a stage design created...

...Stephen Rassenfoss The message from a single chart’s data from the first full-scale hydraulic fracturing surface test is simple: Far less proppant flows out of the first clusters passed in a stage than the last ones. The likely explanation drawn from a surface test created by GEODynamics...

... not been peer reviewed. Multistage hydraulic fracturing has gained global popularity as more tight geologic formations are developed economically for hydrocarbon resources. However, screenout is a major issue caused by the blockage of proppant inside the fractures. The complete paper presents a screenout...

... infrastructure and resource availability to allow easily moving large amounts of proppant (typically natural sands) and water. This can be challenging for remote locations. When permeability decreases, cased and perforated completions with hydraulic fracturing or acid stimulations become the norm. When...

...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 199736, “High-Viscosity Friction Reducers: Potential for Fracture Damage and Impact of Brines on Proppant-Transport Capability,” by Barry Hlidek, SPE, and Robert Duenckel, SPE, Stim-Lab...

... of the industry engineers had entered unconventionals off at least 2 decades of well understood, well defined, and highly effective physics-based analysis of conventional planar fracturing operations. Indeed, in some areas this fallacy continues. For example, proppant selection is ostensibly performed based...

... in particular. 1 11 2021 1 11 2021 1 11 2021 1 11 2021 artificial intelligence upstream oil & gas mechanism proppant mcclure fracturing materials fracturing fluid urtec 2902707 monitor well fracture network child well happening fracture system parent well subsurface...

...-frequency data. Advanced techniques to model fracturing processes with proppant transportation and thermodynamics require even more-sophisticated simulation and computation power. When the subsurface is too puzzling to be described by a physical model and existing data, machine learning and artificial...

... oil & gas jpt horton counterweight diameter proppant fracture A line of perforations along the top of the casing imaged after fracturing using ultrasound. Source: DarkVision Technologies. Getting Your Perforations in a Line Can Mean More-Productive Fracturing Stephen Rassenfoss, Emerging...

... fractures. The hydraulic-fracture simulator also predicts the proppant distribution and its conductivity and treating pressure. The simulated treating pressure is matched with observed pressure during stimulation treatment to calibrate the hydraulic-fracture model. The hydraulic fractures are then gridded...

... that the fracture generated is contained within the reservoir. Well B is completed in two layers (X-3 and X-6). The bottom part of the well is in X-6 and close to another underlying reservoir (Fig. 1). fracturing materials directional drilling upstream oil & gas proppant multistage fracturing drillstem...