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In the acid industrial wastewater of a factory

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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In the acid industrial wastewater of a factory
Method of Treating Flowback Fluid from a Well - Noles ...
Method of Treating Flowback Fluid from a Well - Noles ...

We claim: 1. A method of treating ,flow back fluid, from a well completion process wherein the ,flow back fluid, contains water, solids, dissolved solids and oil comprising: a) conveying the ,flow back fluid, via a conduit, b) maintaining the pH level of the ,fluid, back ,fluid, above about 7.5, c) adding an oxidizing agent to the ,flow back fluid, at a pressure greater than atmospheric pressure until the ...

Method of Treating Flowback Fluid from a Well - Noles ...
Method of Treating Flowback Fluid from a Well - Noles ...

A method of treating ,flow back fluid, from a well completion process wherein the ,flow back fluid, contains water, solids, dissolved solids and oil comprising: a) conveying the ,flow back fluid, via a conduit, b) maintaining the pH level of the ,fluid, back ,fluid, above about 7.5, c) adding an oxidizing agent to the ,flow back fluid, at a pressure greater than atmospheric pressure until the redox ...

Organic Pollutants in Shale Gas Flowback and Produced ...
Organic Pollutants in Shale Gas Flowback and Produced ...

Flowback, water is less saline than formation water and contains chemicals from ,fracturing fluid, as well as their transformation products. (11, 19) Formation and connate water, generally known as produced water, continues flowing from the well for months to years after ,fracturing,, though its daily flow constitutes only a few cubic meters.

Search flowback: Fracturing fluids and additives | SPE
Search flowback: Fracturing fluids and additives | SPE

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Environmental impact of hydraulic fracturing in the United ...
Environmental impact of hydraulic fracturing in the United ...

Flowback, is the portion of the injected, fracturing fluid, that flows back to the surface, along with oil, gas, and brine, when the well is produced. An estimated 90% of, flowback, in the United States is disposed of into deep EPA-licensed Class II disposal wells , with the remaining less than 10% reused, evaporated, used for irrigation, or discharged to surface streams under an NPDES permit.

Hydraulic Fracturing | California | Encyclopedia of Law
Hydraulic Fracturing | California | Encyclopedia of Law

A recent article he coauthored with Berkeley Law colleague Jayni Foley Hein states: “,Fracturing, ‘,flowback,’ … and ‘produced water’ (all waste-water that emerges from the well after production begins) contain potentially harmful chemicals, some of which are known carcinogens.

Post-Frac Analysis Based on Flowback Results Using ...
Post-Frac Analysis Based on Flowback Results Using ...

The precise, flowback, calculation for each, frac fluid, stage yields the, fracture, cleanup efficiency. Chemical, frac tracing, can also be used as a means to understand vertical communication between zones. Under this scenario, one chemical tracer is injected into each zone. Each zone is flowed back individually after a period of shut-in allowing the flow of, fluid, within the formation. Samples are …

Hydraulic Fracturing | California | Encyclopedia of Law
Hydraulic Fracturing | California | Encyclopedia of Law

A recent article he coauthored with Berkeley Law colleague Jayni Foley Hein states: “Fracturing ‘flowback’ … and ‘produced water’ (all waste-water that emerges from the well after production begins) contain potentially harmful chemicals, some of which are known carcinogens.

High levels of benzene chromium-6 found in fracking flowback
High levels of benzene chromium-6 found in fracking flowback

Dangerous levels of cancer-causing chemicals have been found in ,flowback fluid, from hydraulic ,fracturing, operations in California. According to the Center for Biological Diversity, an environmental group, benzene levels over 1,500 times the federal limits for drinking water were found in fracking ,flowback fluid, tests dating back to April 2014, which were obtained and analyzed by the Center.

Method of Treating Flowback Fluid from a Well
Method of Treating Flowback Fluid from a Well

A method and apparatus for treating ,flow back fluid, from a well after a well completion process is disclosed. The method includes the steps of maintaining the pH of the ,flow back fluid, at a certain level and introducing an oxidizing agent at a pressure greater than atmosphere into the ,fluid, flow which reduces the amount of oxidizing agent needed.

Hydraulic fracturing in the United States - Wikipedia
Hydraulic fracturing in the United States - Wikipedia

In addition to the chemical additives present in fracking fluid, flowback water contains dangerous volatile hydrocarbons, such as hydrogen sulfide pulled from the fractured rock. Workers must use handheld gauges to check fluid levels via hatches on top of wells and when doing so they may be exposed to dangerous plumes of gas and vapor containing the volatile hydrocarbons.

Hydraulic fracturing surfactants | Request PDF
Hydraulic fracturing surfactants | Request PDF

Recovery of injected fluids from aqueous hydraulic ,fracturing, applications can be enhanced by the use of ,flowback, aids. These additives are typically surfactants or co-solvents that reduce ...

Gov. Brown Wants California to Consider Hydraulic Fracturing
Gov. Brown Wants California to Consider Hydraulic Fracturing

At a renewable energy conference in San Francisco on March 13, 2013, Gov. ,Jerry, Brown offered a qualified endorsement of hydraulic ,fracturing,. Gov. Brown stated that “the fossil fuel deposits in California are incredible.

Hydraulic fracturing surfactants | Request PDF
Hydraulic fracturing surfactants | Request PDF

Recovery of injected fluids from aqueous hydraulic ,fracturing, applications can be enhanced by the use of ,flowback, aids. These additives are typically surfactants or co-solvents that reduce ...

Organic Pollutants in Shale Gas Flowback and Produced ...
Organic Pollutants in Shale Gas Flowback and Produced ...

Flowback, water is less saline than formation water and contains chemicals from ,fracturing fluid, as well as their transformation products. (11, 19) Formation and connate water, generally known as produced water, continues flowing from the well for months to years after ,fracturing,, though its daily flow constitutes only a few cubic meters.

Managing the Risks of Hydraulic Fracturing
Managing the Risks of Hydraulic Fracturing

The pressure differential that pushes ,fracturing fluid, into the formation is diminished once the rock has fractured, and is reversed toward the wellbore during the ,flowback, and production phases. Accordingly, there is no likelihood of significant adverse impacts from the under-ground migration of ,fracturing, fluids.

Fracturing Fluids - ResearchGate
Fracturing Fluids - ResearchGate

Summary ,Fracturing,-,fluid, additives serve two purposes: to enhance fracturecreation and proppant-carrying capacity and to minimize formation damage.

Method of Treating Flowback Fluid from a Well
Method of Treating Flowback Fluid from a Well

A method and apparatus for treating ,flow back fluid, from a well after a well completion process is disclosed. The method includes the steps of maintaining the pH of the ,flow back fluid, at a certain level and introducing an oxidizing agent at a pressure greater than atmosphere into the ,fluid, flow which reduces the amount of oxidizing agent needed.

Fracturing Fluids - ResearchGate
Fracturing Fluids - ResearchGate

Summary ,Fracturing,-,fluid, additives serve two purposes: to enhance fracturecreation and proppant-carrying capacity and to minimize formation damage.

Fracture Network Development and Proppant Placement During ...
Fracture Network Development and Proppant Placement During ...

This paper presents an application of the wiremesh hydraulic ,fracturing, model to analyze slickwater ,fracturing, stimulation treatments of three Barnett Shale horizontal gas wells. For each treatment stage, the created hydraulic fracture network (HFN) was characterized on the basis of associated microseismic events distribution, treatment data, and geomechanical properties of involved formation layers.

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