... in a horizontal wellbore, a laboratory-based 30-ft horizontal clear apparatus with three perforation clusters is used. Fresh water (~1 cp) is used as the carrier fluid to transport the proppant. This research incorporates the effect of testing three different injection rates each at four different proppant...

.... Acid type, pad and acid volumes, and the injection rates in the designed pump schedule are based on treatment objectives, rock types, and in-situ conditions such as temperatures, in-situ stress, proximity to water-bearing layers, and others. During the acid fracturing treatment, the acid-rock...

... , (5) V i ( R ) = 0.094 * q i 2 π R h ϕ , where q i is the injection rate, h is the reservoir thickness, R is the radial distance, and ϕ is the porosity in fraction. In carbonate formations, as stimulation fluids reach formation, acid starts to bypass...

..., including acid-injection rate and volume. Previous studies have suggested that saturation conditions, permeability, heterogeneity, temperature, and pressure can significantly affect the design of matrix-acidizing treatments. However, laboratory studies’ results are inconsistent in their conclusions...

... densities and viscosities. The effects of changing fluid viscosities, fluid densities, proppant densities, proppant sizes, proppant concentrations, and slurry injection rates on proppant transport were then experimentally investigated. The slot system consists of a 4-ft long, 0.2-in. primary slot with three...

... upstream oil & gas friction wall loss completion monitoring systems/intelligent wells fracturing materials hydraulic fracturing fracturing fluid stage 22 confinement proppant concentration injection rate pressure analysis august 2021 perforation diameter perforation cluster tortuosity...

... reservoir simulation injection rate diverter upstream oil & gas injection pressure inverse injectivity matrix stimulation matrix stimulation fluid diversion permeability hump condensate reservoir matrix acidizing ith element spe production derivative plot knowledge management february...

... recommended to effectively deliver proppant to the horizontal bedding plane. Large proppants have to rely on the critical bed height to move into the bedding plane sitting on top of the vertical fracture. A higher injection rate promoted bedding‐plane proppant delivery in the inverted T‐shape case because...

... such as proppant. Electronic devices for measuring surface pressure, injection rate and wireline data, and recording this information to file at a fixed increment of 1 second. Pressure gauge resolution of 0.1 psi (689 Pa) or better is required. For a variation of the last secondary objective, see Roark...

... that section, only marginal temperature changes were observed, which might be a direct consequence of the low‐injection‐rate limitation. Post‐job processing using numerical temperature simulation was performed to complement that analysis and quantify intake along the well. Temperature inversion against the DTS...

... on the Bernoulli theorem and is used to estimate perforation‐friction pressure (McClain 1963 ), (1) Δ P p = 0.2369 × Q 2 × ρ C d 2 × N 2 × D 4 , where Δ P p is the pressure drop across the perforation entry hole (in psi); Q is the injection rate (in bbl/min); ρ...

... pressures. The tool in discussion uses the combination of treatment data such as surface pressure, fluid density, injection rates, fluid type, wellbore details, and wellbore deviation, along with bottomhole‐gauge pressures, to calculate fracture‐inlet pressures just outside the casing at active perforation...

... 11 2020 Copyright © 2020 Society of Petroleum Engineers reservoir characterization enhanced recovery complex reservoir carbonate reservoir coefficient multiphase flow upstream oil & gas simulation result reservoir simulation fluid dynamics acid injection injection rate...

...‐quality water (injection rate 600 m 3 /d, well length 600 m), with total suspended‐solids content ranging from 0.5 to 5 ppmv and particle size from 10 to 30 µm, leads to the BHP limit of 10 (P10) to 740 (P90) days. The dGSA can be used to determine which parameter has a stronger impact on the BHP...

... dissolution forming the cavity and matrix dissolution forming the wormholes. These dissolution mechanisms are highly dependent on the acid‐injection rate, velocity of the jet, temperature, and permeability of the formation. The differences between the matrix dissolution mechanism of acid jetting...

.... However, excessive fracture‐height growth should be prevented by carefully designing the injection rate and viscosity. For high‐permeability reservoirs, higher conductivity along a shorter acid‐penetration length is targeted. This can be obtained by selecting a more‐reactive acid system such as straight...

... Copyright 2019, Society of Petroleum Engineers hydraulic fracturing natural-fracture length fracture conductivity Injection Rate complex reservoir hydraulic-fracture conductivity acid fracture length acid concentration conductivity Upstream Oil & Gas natural fracture coefficient...

... contrast with principal horizontal stresses reversed, the HF intersected, activated, and opened the NF. Increasing the injection rate resulted in a longer and wider HF but did not significantly affect the NF–activated length. Injection–fluid viscosity displayed an inverse relationship with the HF length...

... stimulation Simulation mechanism Artificial Intelligence acidizing particulate diversion system jamming SPE Production wellbore injection profile Injection Rate diversion pressure drop wormhole small particle particle Reservoir Characteristic perforation permeability One of the major...

... natural fracture porosity distribution Injection Rate wormhole propagation acid natural-fracture distribution fracture fracture density Matrix acidizing in carbonates is a typical measure to remove formation damage caused by drilling, completion, and other operations. The wormholes created...