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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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Environmental impact of hydraulic fracturing - Wikipedia
Environmental impact of hydraulic fracturing - Wikipedia

The environmental impact of hydraulic ,fracturing, is related to land use and water consumption, air emissions, including methane emissions, brine and ,fracturing fluid, leakage, water contamination, noise pollution, and health.Water and air pollution are the biggest risks to human health from hydraulic ,fracturing,. Research has determined that human health is affected.

Energy - Royal Society of Chemistry
Energy - Royal Society of Chemistry

The ,fluid, contains sand which holds open the newly created fractures. The gas then flows back through the well, up to the surface for collection. Once gas collection is complete, the ,fluid, used is also returned to the surface for collection (this is known as ,flowback fluid,). Concerns around unconventional oil and gas extraction include:

Water Topics | Environmental Topics | US EPA
Water Topics | Environmental Topics | US EPA

Learn about EPA's work to protect and study national waters and supply systems. Subtopics include drinking water, water quality and monitoring, infrastructure and resilience.

Downhole Transformation of the Hydraulic Fracturing Fluid ...
Downhole Transformation of the Hydraulic Fracturing Fluid ...

Hydraulic fracturing ,fluid, (HFF) additives are used to enhance oil and gas extraction from unconventional shale formations. Several kilometers downhole, these organic chemicals are exposed to temperatures up to 200 °C, pressures above 10 MPa, high salinities, and a pH range from 5–8.

Ammonium sulfate | (NH4)2SO4 - PubChem
Ammonium sulfate | (NH4)2SO4 - PubChem

Ammonium sulfate, is an inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia.A high-melting (decomposes above 280℃) white solid which is very soluble in water (70.6 g/100 g water at 0℃; 103.8 g/100 g water at 100℃), it is widely used as a fertilizer for alkaline soils. It has a role as a fertilizer.

Journal of Natural Gas Science and Engineering | Standard ...
Journal of Natural Gas Science and Engineering | Standard ...

About. The objective of the ,Journal of Natural Gas Science, & Engineering is to bridge the gap between the engineering and the science of natural gas by publishing explicitly written articles intelligible to scientists and engineers working in any field of ,natural gas science and engineering, from the reservoir to the market.An attempt is made in all issues to balance the subject matter and to ...

International Symposium on Uranium Raw Material for the ...
International Symposium on Uranium Raw Material for the ...

At present, Atucha I and Atucha II, located in Buenos Aires ,province,, are in commercial operation, while Embalse, located in the ,province, of Cordoba, has been out of the generation system for two years for refurbishment tasks designed to extend its useful life for a term of 30 years, which includes an increase in its power by an additional 35 MWe [2].With an approximate installed capacity of 1 ...

Ammonium chloride | NH4Cl - PubChem
Ammonium chloride | NH4Cl - PubChem

1. Expectorant in cough syrups. 2. The ammonium ion (NH4+) in the body plays an important role in the maintenance of acid-base balance. The kidney uses ammonium (NH4+) in place of sodium (Na+) to combine with fixed anions in maintaining acid-base balance, especially as a homeostatic compensatory mechanism in metabolic acidosis. The therapeutic effects of ,Ammonium Chloride, depend upon the ...

(PDF) Analyzing TENORM in Hydraulic Fracturing Wastes
(PDF) Analyzing TENORM in Hydraulic Fracturing Wastes

PDF | Hydraulic ,fracturing,, commonly referred to as fracking, is a method used to extract oil and natural gas from shale and coalbed deposits by... | Find, read and cite all the research you need ...

Glutaraldehyde: behavior in aqueous solution reaction ...
Glutaraldehyde: behavior in aqueous solution reaction ...

Glutaraldehyde possesses unique characteristics that render it one of the most effective protein crosslinking reagents. It can be present in at least 13 different forms depending on solution conditions such as pH, concentration, temperature, etc. Substantial literature is found concerning the use of glutaraldehyde for protein immobilization, yet there is no agreement about the main reactive ...

Waste Archives - FracTracker Alliance
Waste Archives - FracTracker Alliance

Between 10% and 100% of this ,fluid, will return to the surface, and is then known as ,flowback fluid,, becoming a ,waste, stream. In Pennsylvania, the average amount of fracking ,fluid, injected into production wells exceeds 10 million gallons in recent years according to data from the industry’s self-reporting registry known as FracFocus .

Hydraulic Fracturing Return Fluids from Offshore ...
Hydraulic Fracturing Return Fluids from Offshore ...

Seawater is often used as a base ,fluid, to make hydraulic ,fracturing, fluids in offshore HF operations, whereas freshwater is most commonly used in terrestrial HF wells. The injected chemical additives (e.g., stabilizers) therefore also differ due to the use of seawater-based hydraulic ,fracturing, fluids as well as other constraints specific to offshore platforms.

Environmental Damage - an overview | ScienceDirect Topics
Environmental Damage - an overview | ScienceDirect Topics

Conventional exploration requires less water to stimulate a well; however, both conventional and unconventional oil and gas development can generate substantial amounts of wastewater in the production phase. 49 After the completion of the stimulation process in a production well, the pressurized ,fluid, is released allowing the water to ,flowback, into a storage tank as the well is put in production.

Shales Leaching Modelling for Prediction of Flowback Fluid ...
Shales Leaching Modelling for Prediction of Flowback Fluid ...

The object of the paper is the prediction of ,flowback fluid, composition at a laboratory scale, for which a new approach is described. The authors define leaching as a ,flowback fluid, generation related to the shale processing. In the first step shale rock was characterized using X-ray fluorescence spectroscopy, X-ray diffractometry and laboratory analysis. It was proven that shale rock samples ...

Integrated Water Solutions | Schlumberger
Integrated Water Solutions | Schlumberger

From profiling water-bearing subsurface strata to the design of wastewater ,treatment, and injection systems, ,Schlumberger, offers resilient water solutions to enable water to be sourced, processed, and disposed of in ways that safeguard local reserves and control project costs.

CN102161536A - Advanced treatment method for fracturing ...
CN102161536A - Advanced treatment method for fracturing ...

The invention discloses an advanced treatment method for fracturing ,flow-back fluid,, ,belongs, to the field of water treatment of the development of oil and gas fields, and particularly relates to an advanced treatment method for the fracturing ,flow-back fluid, generated during the operation of the oil and gas fields. The treatment method for the fracturing ,flow-back fluid,, which has high effect ...

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

Current Filters. coreflood Feature

Form 10-K/Amendment No.1 - SEC.gov | HOME
Form 10-K/Amendment No.1 - SEC.gov | HOME

Indicate by check mark whether the Company is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x. As of June 30, 2009, the aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant was $377,503,624 based on the closing sale price on such date as reported on the New York Stock Exchange.

Biomineralization of hypersaline produced water using ...
Biomineralization of hypersaline produced water using ...

15/2/2021, · Hybrid membrane bio-systems for sustainable ,treatment, of oil and gas produced water and ,fracturing flowback, water Sep. Purif. Technol. , 171 ( 2016 ) , pp. 297 - 311

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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