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The pH meter in acid wastewater is inaccurate

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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The pH meter in acid wastewater is inaccurate
A Laboratory Study of the Impact of Reinjecting Flowback ...
A Laboratory Study of the Impact of Reinjecting Flowback ...

Reuse of flowback water in hydraulic fracturing is usually used by industry to reduce consumption, transportation, and disposal cost of water. However, because of complex interactions between injected water and reservoir rocks, induced fractures may be blocked by impurities carried by flowback and mineral precipitation by water/rock interactions, ...

11. Produced water and flowback fluid: re-injection and ...
11. Produced water and flowback fluid: re-injection and ...

You can reuse, flowback fluid, as, fresh injection fluid, for the purpose of hydraulic, fracturing., You must reuse flowback fluid where you can so you are meeting the Mining Waste Directive obligation...

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.

Treating Water From Hydraulic Fracturing
Treating Water From Hydraulic Fracturing

“Although much of the ,flowback, and production brines have high chlorides, we can reuse the water effectively up to 100,000 mg/L. Clean salt water outperforms freshwater for the hydrofracturing ...

Re-injection feasibility study of fracturing flow-back ...
Re-injection feasibility study of fracturing flow-back ...

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Cuttings Reinjection - Physical Process | Schlumberger
Cuttings Reinjection - Physical Process | Schlumberger

Cuttings Reinjection ,-, Physical Process This video shows the entire CRI process, from surface processing to downhole disposal. Cuttings reinjection, or CRI, has long been recognized as the best solution for managing drilling waste in remote and environmentally sensitive areas, including jungles, the Arctic, and many offshore fields, where traditional disposal techniques are not viable.

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

Finally, the suspended solids (SS) content of the fracturing flowback was steadily less than 15 mg/L, which meets the reinjection standard of fracturing flowback (SY/T 5329-2012 (China)). Hence, electrolytic brine-catalyzed oxidation treatment of high viscosity fracturing flowback possess broad …

Aluminum Pretreatments
Aluminum Pretreatments

Gardobond X 4707 E18 is a liquid, chromium-free process for the ,treatment, of extrusions and sheets of aluminum and its alloys. The one component process serves as a no rinse pre-,treatment, prior to painting - performing exceptionally well when paired with ,powder, paint.

Study on fracturing flowback fluid treatment technology ...
Study on fracturing flowback fluid treatment technology ...

1/2/2018, · The results shown that the viscosity of the ,fracturing flowback fluid, before treatment was 16.75mPa·s, and when the pH was adjusted to 3.5, with Cerium(III) sulfate and ferrous sulfate as catalyst and the dosage were 60mg/L and 120 mg/L respectively, and hydrogen peroxide dosage was 0.5%, the viscosity of ,fracturing, folwback ,fluid, was reduced from 16.75mPa·s to 1.97mPa·s After the oxidation …

Re-injection feasibility study of fracturing flow-back ...
Re-injection feasibility study of fracturing flow-back ...

1/2/2018, · Fracturing flow-back fluid in shale gas mining is usually treated by, re-injecting, into formation. After treatment, the fracturing flow-back fluid is injected back into the formation. In order to ensure that it will not cause too much damage to the bottom layer, feasibility evaluations of re-injection of two kinds of fracturing fluid with different salinity were researched.

On Treatment and Reinjection of Flowback Fluid after ...
On Treatment and Reinjection of Flowback Fluid after ...

Gelled acid consists mainly of hydrochloric acid and gelling agent.While carrying out ,fracturing, in lowpermeability carbonate formation,hydrochloric acid will corrode the formation,making cracks link up with each other.Gelled acid will finish its chemical reaction with rocks in two hours.The reacted acid in ,flowback fluid, is handled with alkali binding agent containing NaOH,and then it is ...

Treatment of C.I. Reactive Blue-21 effluent by ...
Treatment of C.I. Reactive Blue-21 effluent by ...

The pH was adjusted to the desired value by adding 0.1 M acetic ,acid, or 0.1 M sodium hydroxide. Ethanol, soda ash, glauber’s salt, acetic ,acid,, and sodium hydroxide were bought from S D Fine-Chem Pvt. (India). All the experiments were carried out using distilled water. Surface ,treatment, of MCC

Study on fracturing flowback fluid treatment technology ...
Study on fracturing flowback fluid treatment technology ...

1/2/2018, · Shale gas ,fracturing flowback fluid, has the characteristics of high viscosity, large displacement, complex components and difficult to deal with. Therefore, it is of great signifi

On Treatment and Reinjection of Flowback Fluid after ...
On Treatment and Reinjection of Flowback Fluid after ...

Gelled acid consists mainly of hydrochloric acid and gelling agent.While carrying out ,fracturing, in lowpermeability carbonate formation,hydrochloric acid will corrode the formation,making cracks link up with each other.Gelled acid will finish its chemical reaction with rocks in two hours.The reacted acid in ,flowback fluid, is handled with alkali binding agent containing NaOH,and then it is ...

Recovery and treatment of fracturing flowback fluids in ...
Recovery and treatment of fracturing flowback fluids in ...

1/11/2015, · The fracturing flowback fluid treatment unit has the following main modules , , : ① coagulation and precipitation, which involves pumping the flowback fluid with sand preliminarily settling removed to the treatment tank, adding coagulant and, ion precipitant, in the tank to make the suspended solids and Ca 2+ and Mg 2+ ions coagulate and precipitate, realizing the preliminary separation of …

Treating Water From Hydraulic Fracturing
Treating Water From Hydraulic Fracturing

Treating water from North American oil and gas wells was a $2.5 billion industry in 2010, according to GWI. Another $2.5 billion was spent on reinjection, minimization, and off-site disposal of water.

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

Finally, the, suspended solids, (SS) content of the fracturing flowback was steadily less than 15 mg/L, which meets the reinjection standard of fracturing flowback (SY/T 5329-2012 (China)). Hence, electrolytic brine-catalyzed oxidation treatment of high viscosity fracturing flowback possess broad …

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