... were investigated under various water fractions, flow rates and oil viscosities. The screen jacket was also partially blocked by a sleeve to simulate the partial burial of the screen in the wellbore. The multiphase flow patterns in the annular space around the screen and inside the valve housing were...

..., temperatures between 125 and 325°F, and HCl concentrations ranging from 15 to 28 wt%. The new single-phase retarded acid has a low viscosity, close to the viscosity of unmodified HCl, which should result in low friction pressure in field applications. The pore volume to breakthrough data were incorporated...

... drilling fluid selection and formulation biopolymer exposure starch howard injection composition viscosity exhibition conference cleanup Introduction Biopolymers, such as xanthan gum and starch, have been extensively used as viscosifiers and fluid loss control agents in water-based...

... used, other alternatives have been explored. Viscoelastic surfactants (VES) as part of fracturing fluids and proppant transport fluids compositions during a fracture treatment is a departure from the use of polymer viscosifiers. A VES fluid's viscosity is created by self-assembling surfactant small...

.... The consolidation mechanism is designed to be triggered downhole by temperature. The fluid system was fully characterized in terms of viscosity, stability at elevated temperature, and performance to provide operational control and reduce pumping risks in a wide range of reservoir applications. Regained permeability...

... into these unconventional wells, High Viscosity Friction Reducers (HVFRs) have been successfully introduced. They have the ability to reduce water consumption, minimizing chemical usage and require less operating equipment on location. Most importantly, they have better proppant transport capability which keeps...

...-wellbore (NWB) spending and inefficient stimulation. Acid retardation can be accomplished by viscosifying acids with polymers/gelling agents or emulsifying in diesel. However, these systems had their performance limitations and associated drawbacks. This paper presents a novel low-viscosity, single-phase...

... as crosslinkers for polyacrylamide. The paper provides a good understanding of the rheological, mechanical properties, and gelation characteristics, which are important factors affecting the spotting of these pills. drilling fluids and materials concentration viscosity stability drilling fluid...

..., such as calcium, makes identifying additives for developing functional fluids challenging. While additives, such as hydroxyethyl cellulose, can provide viscosity to calcium brines, imparting the suspension properties needed for the transport of solid bridging agents or drill cuttings can be particularly...

..., increases the suspension viscosity, fracture width and net pressure. However, it deceases the fracture length as more pressure loss occurs along the fracture. As a result, well productivity is highly impacted by the proppant settling and distribution. Many studies have been devoted to identifying different...

... production was 13,330 KSCM and the well keeps flowing steadily instead to be probably shut in if it had followed its initial decline trend. Fluid Dynamics gas production name 10 Upstream Oil & Gas polymer viscosity polymer adsorption reduction enhanced recovery polymer injection flow rate...

... Abstract High molecular weight polyacrylamide polymers have been used for many years in water floods for enhanced oil recovery (EOR) and as friction reducers in hydraulic fracturing. More recently, so called "high viscosity" versions of these polymers are being used in fracturing operations...

... the existing methods considering environmental friendliness and damage removal efficiency. Artificial Intelligence Upstream Oil & Gas formation damage drilling fluid selection and formulation drilling fluid formulation viscosity enhanced recovery drilling fluid chemistry drilling fluid...

... polymer-based mud viscosity gelation time drilling fluid selection and formulation Upstream Oil & Gas concentration pam pei system bentonite PAM solution gel strength pei concentration molecular weight enhanced recovery annular pressure drilling well control drilling fluid management...

... Fluid Dynamics polymer relative permeability modifier rpm polymer solution rpm solution stable differential pressure water permeability permeability core flow result Upstream Oil & Gas viscosity relative water permeability production direction injection direction production control...

... Abstract The use of high viscosity friction reducers (HVFRs) has increased rapidly as replacements for linear and even crosslinked guar-based fluids for proppant transport in hydraulic fracturing. HVFRs at high loadings have significantly higher fluid viscosities than conventional friction...

... to minimize filtrate invasion into the formation, effectively reduce loss circulation and enhance hole-cleaning prior to cement placement. drilling fluids and materials spacer system spacer annular pressure drilling cement slurry viscosity Formation Damage Control well control Upstream Oil...

... building viscosity between a pH range of 1.5 to 3.0. Then, as acid continues to further react with calcium carbonate and the pH becomes higher than 3, the crosslinked fluid begins to break down and the fluid viscosity decreases. Several experiments were conducted to assess the performance of this novel...

... environmentally friendly epoxy formulation category plug epoxy formulation biodegradability hydraulic fracturing resin viscosity epoxy Upstream Oil & Gas society of petroleum engineers environmentally friendly epoxy aquatic environment hazardous chemical toxicity environmental property...

... viscosity and average molecular weight were employed to measure the bio-degradation. The mechanism of microbial remediation of guar-based fracturing fluid damage was proved by the biodegradation of filter cake through measuring the thickness of filter cake on the filter paper. In addition, the core-flood...