... are most susceptible to this type of behaviour, for example, filamentous illite and booklet/vermicular kaolinite. In high permeability reservoirs, migrated fines can move into the wellbore leading to an increase in permeability, but are more likely to cause damage in lower permeability reservoirs where...

... intervención de pozos petroleros artificial intelligence complex reservoir core flood test time step reaction rate flood concentration calculation breakthrough morphology stimulation fluid placement wormhole core flood experiment dissolution modelling stimulation fluid permeability core...

... provide additional performance data to aid in selecting a sand control system for a given environment. The Constant Drawdown method simulates a wellbore that is in conformance with the sand control media. This method provides retained screen permeability, as well as the formation and system permeabilities...

... into the formation to bind the sand grains together and provide strong cohesion. Most existing consolidation technologies use solvent-based fluids, which increases the operational complexity of achieving successful treatment without compromising retained permeability and raises environmental concerns. A novel...

... drilling fluid selection and formulation fluid loss control polymer geomechanical model application smp calcium carbonate evaluation permeability expansion coupon activator fluid completion filter cake srf brine liner hanger singa completion activator chemical Introduction N'Singa...

... Abstract Stimulation fluids are used for near-wellbore clean-up and either removal or bypass of formation damage or for improvement of the effective permeability. In carbonate reservoirs, typical formulations are most commonly based on HCl or organic acids, such as acetic or formic acid, which...

... function detachment concentration shear stress detrital particle particle detachment aspect ratio tensile strength permeability Introduction In this paper, we assume the bond between the authigenic clay and rock acts as a cantilever beam. Cohesive Beam Model is applied to formulate...

... high temperature condition and the impact of treatment on the absolute permeabilities were measured. Then, two reservoir cores were treated at relatively low temperature (59 °C). To visualize the impact of treatment, CT scan images were taken after the treatment. To compare the performance...

... stimulation treatment design compatible exposure specimen exposure time degradation acid mixture hcl mechanism weight loss injectivity oilfield chemistry waterflooding fluid dynamics gre lining acid permeability reduction gre liner fiberglass Introduction Lim et al., (2019...

... ( Figure 1 ). Obtain representative formation material and screens to determine the formation and formation plus screen permeability in the near wellbore area in a restressed condition. This provides the best-case inflow conditions with no permeability damage from drill-in fluid. Plot results...

... correspond to a particular well and X-ray Diffraction (XRD) analysis confirms it is >98% dolomite. CT imaging corroborates the heterogeneous permeability due to primary and secondary porosity systems (5% – 10% and 10% – 15%). The pore volume breakthrough of each acid blend was determined for two cores...

... Abstract Offshore reservoirs in the Southwest Persian Gulf are commonly oil-wet limestone with an average permeability of 10 md. High production of hydrogen sulfide and carbon dioxide is often encountered in the oil producer wells. The tight reservoirs are commonly drilled with water-based...

... some temporary relative permeability damage from brine injection into high permeability reservoirs is normal and expected, the scale of production loss was significant enough to warrant a comprehensive lab study. Abstract Matrix acidizing, stimulation and other aqueous or solvent based pumping...

... a thin, ultra-low permeability and acid-soluble filtercake. A newly developed breaker was customized to provide a 4-hour delay at bottom-hole temperature (250°F) permitting a safe pull out of the inner string above the FIV and then slowly dissolve the filtercake to restore near wellbore permeability...

... filtercake mariner field overbalance formation damage result injection reservoir characterization drilling fluid management & disposal drilling operation maureen formation biopolymer rdf wellbore permeability reservoir drill-in fluid Introduction Abstract The Mariner Field consists...

...° to 300°F. The regained permeability range varies from 115% to 400% under different conditions. The new acid provided similar or better performance compared with the combination of acid preflush and mud acid or organic mud acid. High concentrations of Al and Si were observed in the spent acid effluents...

... used to illustrate the inner mechanism, explain the inside fluids distribution and fluids migration characteristics in different hydraulic fracturing procedure. Results showed that after frac fluid invasion, the rock permeability declined by 8-20%, and the hydrocarbon recovery decline by 25-30%, while...

...-wellbore reservoir zone on time. Modeling Formation Damage Van Everdingen (1953) , proposed a skin factor (s) definition that relates the pressure drop in the damaged zone to the dimensionless flow rate. This definition accounts for the permeability reduction in the vicinity of the wellbore...

.... Produced sand is also measured during the test. The main outputs of the test are to assess the sand control performance and the mode of sanding in different flow direction, flow rates and flow regimes. We were able to establish uniform radial flow in both high and low permeability sand packs. However...

..., porosity from 8 to 20%, permeability from 0.2 to 800 mD, and flow regimes from 0.5 to 100 mL/min, thus highlighting the flexibility and ease of use. For all tests using the low viscosity HCl acid formulation, PV bt volumes were reduced in comparison to plain HCl acid, whereas the most notable volume...