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How to adjust pH value of high acid wastewater

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How to adjust pH value of high acid wastewater
WO2019027710A1 - Fracturing method using a low-viscosity ...
WO2019027710A1 - Fracturing method using a low-viscosity ...

An optimization process to optimize hydraulic fracture design evaluates and quantifies the proppant-carrying capacity of the invented ,fluid, and its impact in the proppant transport during ,fracturing,. A ,fluid, design with enhanced proppant-carrying capacity utilizes a low- ,viscosity fluid, with high proppant carrying capacity and low required power for injection into a hydrocarbon-bearing, subterranean …

DryFra cTM Waterless Fracturing Technology
DryFra cTM Waterless Fracturing Technology

cial tension and ,viscosity, of oil, enhancing initial ,flowback,. Energized ,flow back,: Upon ,flowback,, gaseous CO 2 provides the energy to push fluids out of the fractures and well bore. Reduced formation damage: CO 2eliminates clay swelling, ,reducing, blockage in fractures, and leaves a residue free proppant pack. Proppant placement: The ,fluid, ...

2021 Hydraulic Fracturing Technology Showcase
2021 Hydraulic Fracturing Technology Showcase

Additionally, this also allows less HVFR to be used to achieve a target viscosity in brine, thereby reducing the risk of formation damage by the fracturing fluid. Viscosity of 6 GPT HVFR fluids in 10% potassium chloride brine with Stepan booster formulation shows improved performance versus control at two different shear rates.

Fracturing fluids and additives - PetroWiki
Fracturing fluids and additives - PetroWiki

16/4/2020, · The, viscosity, of the, fracturing fluid, is an important point of differentiation in both the execution and in the expected, fracture, geometry. Many current practices, generally referred to as "slickwater" treatments, use, low-viscosity fluids, pumped at high rates to generate narrow, complex, fractures, with low-concentrations of propping agent (0.2-5 lbm proppant added (PPA) …

Application of supercritical water conditions to improve ...
Application of supercritical water conditions to improve ...

1/2/2021, · Water-based viscous polymeric FFs are often used in hydraulic, fracturing,. This type of FF is composed of 99% water and proppant and 1% of other chemicals used as, viscosity, adjusters, friction, reducers,, biocides, surfactants, scaling inhibitors, and acids to help dissolve minerals, among other purposes [6].

CA1221822A - Fracturing fluid breaker system which is ...
CA1221822A - Fracturing fluid breaker system which is ...

ABSTRACT OF THE DISCLOSURE Disclosed are compositions and related methods of use for ,reducing, the ,viscosity, of a ,fluid, introduced into a subterranean formation. The compositions are introduced into the subterranean formation and are non-reactive to the ,fluid, until activated by the closing of any fractures in the subterranean formation upon the com-positions.

A Feasibility Study of Reusing Flowback Fluids in ...
A Feasibility Study of Reusing Flowback Fluids in ...

The ,viscosity, and rheological properties of ,fracturing fluid,, significantly affect leak-off rate, proppant placement, length and width of fractures, fracture conductivity, and consequently, the ...

FLOWBACK AID FOR FRACTURING FLUIDS - Schlumberger ...
FLOWBACK AID FOR FRACTURING FLUIDS - Schlumberger ...

A flowback aid may be included in the fracturing fluid to reduce capillary pressure and water blocks, thereby improving the kinetics of the flowback and preventing or minimizing the leaving-behind of any substantial amount of the fracturing fluid. Flowback aids, such as surfactants, have also been shown to aid in the “clean-up” of the proppant pack, thereby accelerating the flow of hydrocarbons through the …

Fracturing-Fluid Flowback Simulation with Consideration of ...
Fracturing-Fluid Flowback Simulation with Consideration of ...

This means that using the low-density proppant (small ρ p) and low-,viscosity fracturing,-,fluid, (small μ w) in hydraulic ,fracturing, treatment, assists in recovering the ,fluid, and inhibiting the proppant ,flowback,.

Preparation of a Novel Fracturing Fluid System with ...
Preparation of a Novel Fracturing Fluid System with ...

However, it is well known that the initial ,viscosity, of most HAWSP-based ,fracturing, fluids is too large due to its special structure, which will increase the friction between the ,fracturing fluid, and pipeline. In other words, an extra burden ,for fracturing equipment, would be presented, which would increase the risk of ,equipment, failure over time.

Carbonate VES - Global Oilfield Services & Equipment
Carbonate VES - Global Oilfield Services & Equipment

VES-based fluids include ,VDA, viscoelastic diverting acid, ClearFRAC polymer-free hydraulic ,fracturing, fluids, and ClearPAC polymer-free ,fluid, for gravel packs. The ,fluid, rapidly develops ,viscosity, in situ upon acid spending and becomes self diverting. The ,viscosity, reduces dominating wormholes and allows the ,fluid, to stimulate other zones.

Hydraulic fracturing - Wikipedia
Hydraulic fracturing - Wikipedia

As the fracturing process proceeds, viscosity-reducing agents such as oxidizers and enzyme breakers are sometimes added to the, fracturing fluid, to deactivate the gelling agents and encourage, flowback,. Such oxidizers react with and break down the gel,, reducing, the, fluid's viscosity, and ensuring that no proppant is pulled from the formation.

Original Research Analysis of Chemical and Toxicological ...
Original Research Analysis of Chemical and Toxicological ...

plex (because of low ,viscosity, and high injection speed) • Cracks decrease in height and part of the ,flowback, water can be re-used to develop another ,fracturing fluid, [6, 9] ,Fracturing, fluids prepared on the basis of surfactants (the so-called viscoelastic surfactant (VES) fluids) belong to another group. Required ,viscosity, parameters are obtained

Fracturing-Fluid Flowback Simulation with Consideration of ...
Fracturing-Fluid Flowback Simulation with Consideration of ...

This means that using the low-density proppant (small ρ p) and low-viscosity fracturing-fluid (small μ w) in hydraulic fracturing treatment, assists in recovering the fluid and inhibiting the proppant flowback.

2021 Hydraulic Fracturing Technology Showcase
2021 Hydraulic Fracturing Technology Showcase

15/12/2020, · Additionally, this also allows less HVFR to be used to achieve a target ,viscosity, in brine, thereby ,reducing, the risk of formation damage by the ,fracturing fluid,. ,Viscosity, of 6 GPT HVFR fluids in 10% potassium chloride brine with Stepan booster formulation shows improved performance versus control at two different shear rates.

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