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Determination of metals in acid wastewater of stainless steel plant

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Determination of metals in acid wastewater of stainless steel plant
PROPPANT MATERIAL AND FORMATION HYDRAULIC FRACTURING …
PROPPANT MATERIAL AND FORMATION HYDRAULIC FRACTURING …

A ,proppant, material is provided that is in the form of generally rigid, elastic plate-like particles having a maximum to minimum dimension ratio of more than about 5. The ,proppant, may be formed from a corrosion resistant material or having a corrosion resistant material formed thereon. The plate-like particles may be substantially non-deformable and may be formed from stainless steel or carbon ...

Tracking Fracture Fluid Movement with Chemical and Gamma ...
Tracking Fracture Fluid Movement with Chemical and Gamma ...

• ,Fluid, tracers in ,backflow, ... for complex ,fracturing, and very unusual ,fluid, behavior. ... In this first example case, the available assessment information includes chemical ,fluid, tracer (CFTs), ,proppant, tracers (“100” mesh sand) ...

Oil and Natural Gas Sector Hydraulically Fractured Oil ...
Oil and Natural Gas Sector Hydraulically Fractured Oil ...

reservoir rock is fractured with very high pressure ,fluid,, typically a water emulsion with a ,proppant, (generally sand) that ³props open´ the fractures after ,fluid, pressure is reduced. Oil well completions with hydraulic ,fracturing, can result in VOC and methane emissions, which occur when gas is vented to the atmosphere during flowback.

CFD-DEM Simulations of Proppant Particle Transport in ...
CFD-DEM Simulations of Proppant Particle Transport in ...

•Study the effects of the flow rate on ,proppant, coverage. •Use the actual geometry and compare the results. •Model the chemical reactions in fractures. •Include ellipsoidal particles to model sensors •Estimate ,backflow, after fracking and removing hydraulic pressure

Treatment of hydraulic fracturing wastewater by wet air ...
Treatment of hydraulic fracturing wastewater by wet air ...

We applied a combination of flocculation and wet air oxidation technology to optimize the reduction of COD in the treatment of hydraulic, fracturing, wastewater. The experiments used different values of flocculant, coagulant, and oxidizing agent added to the wastewater, as well as different reaction times and treatment temperatures.

Solvent-free consolidation system controls proppant flowback
Solvent-free consolidation system controls proppant flowback

proppant, bridge could prevent complete placement of consolidation treatment into all perforations and contribute to failure of the consolidation treatment. The ,fluid, sequence of an ABC consoli-dation treatment is as follows: • Preflush 1. Inject a volume of mutual solvent solution to remove residual oil coating from the ,proppant, or

Treatment of high viscosity fracturing flowback by ...
Treatment of high viscosity fracturing flowback by ...

In this paper,, Fe/Ni cata,lyst was successfully applied in the treatment of the flowback fluid for the first time. The catalyst can improve the oxidation efficiency of electrolytic brine and reduce the viscosity of fracturing flowback during the treatment process. The effect of the Fe/Ni proportion on the catalytic performance was studied.

Acid Fracturing - CNPC
Acid Fracturing - CNPC

Liquid carbon dioxide and water-based ,fracturing, fluids are mixed together and pumped into wells for ,fracturing, and stimulation. This kind of ,fluid, for ,fracturing, minimizes reservoir damage, thanks to its minimal residue, high ,backflow, percentage, little leakoff, and plug removal under faint acidity.

Treatment Of Flowback For Reuse: An Emerging Oilfield ...
Treatment Of Flowback For Reuse: An Emerging Oilfield ...

In addition to acting as a disinfectant,, chlorine dioxide, can be a useful oxidizer for the treatment of flowback. Unlike alternative oxidizers like bleach and hydrogen peroxide,, chlorine dioxide, is a selective oxidizer. This property can be leveraged intelligently to meet other flowback treatment goals like the removal of metals and acid gases.

(PDF) PRE-TREATMENT OF FLOWBACK WATER TO DESALINATION
(PDF) PRE-TREATMENT OF FLOWBACK WATER TO DESALINATION

The association of the processes to increase pH, oxidation and filtration enables efficient ,flowback, pre-treatment so that it can be used as the feed water for the NF and RO membranes.

Self‐similar solution of a plane‐strain fracture driven by ...
Self‐similar solution of a plane‐strain fracture driven by ...

A solution that describes the crack length evolution, the fracture opening, the net ,fluid, pressure and the ,fluid, flow rate inside the crack is presented. This self‐similar solution is obtained by expanding the fracture opening in a series of Gegenbauer polynomials, with the series coefficients calculated using a numerical minimization procedure.

Hydrofracturing as a tool for increasing water well capacity
Hydrofracturing as a tool for increasing water well capacity

Create and propagate fractures and inject sand ,proppant, Pumping significant volumes of water, gel, drilling mud into the fractures, as vehicle for ,proppant, Requires oilfield scale equipment to provide pressures and ,fluid, volumes No ,backflow, to surface, may have to develop out excess sand and gel

Patent Report: | US10017686 | Proppant drying system and ...
Patent Report: | US10017686 | Proppant drying system and ...

The gaseous nitrogen is used to exhaust moisture from the ,proppant, silo until the ,proppant, is in a bone-dry condition. The moisture is exhausted from the ,proppant, silo while maintaining a back pressure within the ,proppant, silo. The bone-dry ,proppant, can be mixed with a stimulation ,fluid, and injected into a hydrocarbon bearing reservoir.

PROPPANT AND FORMATION TREATMENT METHOD USING A PROPPANT …
PROPPANT AND FORMATION TREATMENT METHOD USING A PROPPANT …

The ,proppant, and ,fracturing fluid, form a slurry that is pumped into the well and into the fracture network. By pumping, the pad and the ,proppant, slurry are displaced to the opening of the fracture ... the ,backflow, of ,fluid, out of the fracture may tend to problematically displace the ,proppant, back into the wellbore, termed flowback.

Oil and Natural Gas Sector Hydraulically Fractured Oil ...
Oil and Natural Gas Sector Hydraulically Fractured Oil ...

reservoir rock is fractured with very high pressure ,fluid,, typically a water emulsion with a ,proppant, (generally sand) that ³props open´ the fractures after ,fluid, pressure is reduced. Oil well completions with hydraulic ,fracturing, can result in VOC and methane emissions, which occur when gas is vented to the atmosphere during flowback.

On-site treatment of flowback and produced water from ...
On-site treatment of flowback and produced water from ...

1/12/2018, · For treatment of flowback, multiple on-site treatment systems are available for primary separation (i.e., reducing, TSS concentrations and particle size below 25 μm for disposal), secondary separation (i.e. removing TSS, iron and main scaling ions, and, reducing, particle size up to 5 μm for reuse), or tertiary treatment (i.e., reducing, TDS concentration in the permeate/distillate to below 500 mg/L) for …

CN102992524A - Fracturing flowback fluid treatment method ...
CN102992524A - Fracturing flowback fluid treatment method ...

The invention discloses a treatment method for ,flowback fluid, in horizontal well ,fracturing, exploitation of oil fields and unconventional oil and gas fields, such as natural gas and shale gas. The method comprises the steps of: removing scale-forming elements from ,fracturing flowback fluid, by flocculation and sedimentation; and converting chloride ions in waste water into hypochlorite and ...

CN102992524B - Fracturing flowback fluid treatment method ...
CN102992524B - Fracturing flowback fluid treatment method ...

The invention discloses a treatment method for ,flowback fluid, in horizontal well ,fracturing, exploitation of oil fields and unconventional oil and gas fields, such as natural gas and shale gas. The method comprises the steps of: removing scale-forming elements from ,fracturing flowback fluid, by flocculation and sedimentation; and converting chloride ions in waste water into hypochlorite and ...

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