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Treatment of acid wastewater with chromium by Fe

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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Treatment of acid wastewater with chromium by Fe
Flowback and Produced Water - US EPA
Flowback and Produced Water - US EPA

15/11/2012, · • Spills of hydraulic ,fracturing flowback, and produced water • Chemicals reported in hydraulic ,fracturing, wastewater along with their environmental fate and transport

Study on the Reutilization of Clear Fracturing Flowback ...
Study on the Reutilization of Clear Fracturing Flowback ...

19/11/2014, · The clear fracturing flowback fluids were used as, surfactant flood,ing system with the, addition of α-olefin sulfonate (AOS) for enhanced oil recovery (EOR)., The interfacial activity, emulsification activity and oil recovery capability of the recycling system were studied.

flowback 1 | DeSmog
flowback 1 | DeSmog

Adding to the already lengthy list of reasons to be concerned about the disposal of oil industry wastewater in California, the Center for Biological Diversity says it has found dangerous levels of toxic and carcinogenic chemicals such as benzene and toluene in fracking ,flowback,. ,Flowback, is a ,fluid, that floats up to the surface of fracked wells that contains clays, dissolved metal ions and ...

Petroleum - Wikipedia
Petroleum - Wikipedia

Petroleum (/ p ə ˈ t r oʊ l i ə m /), also known as crude oil and oil, is a naturally occurring, yellowish-black liquid found in geological formations beneath the Earth's surface. It is commonly refined into various types of fuels.Components of petroleum are separated using a technique called fractional distillation, i.e. separation of a liquid mixture into fractions differing in boiling ...

Hydraulic Fracturing 101 - Earthworks
Hydraulic Fracturing 101 - Earthworks

Two spills kill fish: In September 2009, Cabot Oil and Gas spilled ,hydraulic fracturing fluid, gel LGC-35 twice at the company’s Heitsman gas well. The two incidents released a total of 8,000 gallons of the ,fracturing fluid,, polluting Stevens Creek and resulting in a fish kill. LGC-35, a well lubricant used during the ,fracturing, process.

Borehole Geophysics - USGS
Borehole Geophysics - USGS

Borehole, geophysics is the science of recording and analyzing measurements of physical properties made in wells or test holes. Probes that measure different properties are lowered into the ,borehole, to collect continuous or point data that is graphically displayed as a geophysical log.

Hydraulic fracturing wastewater in Germany: composition ...
Hydraulic fracturing wastewater in Germany: composition ...

31/5/2013, · For the studied shale gas well a proportion of formation water, 69 %, and, hydraulic fracturing fluid,, 31 %, in, flowback, were derived. Thus, 92 % of the, hydraulic fracturing fluid, remained in the formation. The, physical/chemical properties, of flowback were categorized in groups to enable the allocation of applicable treatment methods.

A Study on Three-Phase Gas Content in Coal Reservoirs and ...
A Study on Three-Phase Gas Content in Coal Reservoirs and ...

The ,amount, of CBM (burial depth is less than 2000 m) is 95,100 × 10 8 m 3. (1−5) In the 13th five-year plan for coalbed methane development and utilization issued by the National Energy Administration of China in 2016, it is pointed out that the southern margin of the Junggar Basin will be taken as a new industrialization base for CBM development during the 13th five-year plan period.

Physical chemical and biological characteristics of ...
Physical chemical and biological characteristics of ...

30/6/2014, · Chemical, physical, and toxicological data were identified for 81 fracturing fluid chemicals. •, Toxicity, data were not available for 30 of these chemicals. • Of the chemicals investigated, 55 were organic and 27 were biodegradable. •, Biocides, were of, high concern due to toxicity., •, Gelling agents, contained significant chemical oxygen demand.

Chemical characterization in hydraulic fracturing flowback ...
Chemical characterization in hydraulic fracturing flowback ...

The organic matter contained, fracturing fluid, additives, such as, surfactants (e.g., ethylene glycol),, and, nitrotrichloromethane,, which is a chlorinated product of some additives. These results...

FIREARMS TUTORIAL - WebPath
FIREARMS TUTORIAL - WebPath

The factors that can affect the ,amount, and distribution of gunshot residue (GSR) on skin and clothing include: (1) firing distance, (2) length and diameter of the firearm barrel, (3) characteristics of the gunpowder, (4) angle between the firearm barrel and target, (5) characteristics of the cartridge, (6) the environment (moisture, wind, heat), (7) type of clothing, (8) intermediate targets ...

In situ transformation of ethoxylate and glycol ...
In situ transformation of ethoxylate and glycol ...

In the last decade, extensive application of hydraulic ,fracturing, technologies to unconventional low-permeability hydrocarbon-rich formations has significantly increased natural-gas production in ...

News - USGS
News - USGS

News, Dive into the world of science! Read these stories and narratives to learn about ,news, items, hot topics, expeditions underway, and much more.

Analysis of Hydraulic Fracturing Flowback and Produced ...
Analysis of Hydraulic Fracturing Flowback and Produced ...

Two series of ethylene oxide (EO) surfactants, polyethylene glycols (PEGs from EO3 to EO33) and linear alkyl ethoxylates (LAEs C-9 to C-15 with EO3–EO28), were identified in hydraulic ,fracturing flowback, and produced water using a new application of the Kendrick mass defect and liquid chromatography/quadrupole-time-of-flight mass spectrometry.

Journal of Advanced Research in Fluid Mechanics and ...
Journal of Advanced Research in Fluid Mechanics and ...

ISSN (Online): 2289-7879 Frequency: Monthly. Editor-in-Chief: Dr. Nor Azwadi Che Sidik (E-mail) Technical Editor: Ahmad Tajuddin Mohamad (E-mail) View full editorial board. Aims and Scope: This journal welcomes high-quality original contributions on experimental, computational, and physical aspects of ,fluid mechanics and thermal sciences, relevant to engineering or the environment, multiphase ...

Energy & Fuels | Vol 35 No 7 - American Chemical Society
Energy & Fuels | Vol 35 No 7 - American Chemical Society

A Review on Detailed Kinetic Modeling and Computational ,Fluid, Dynamics of Thermochemical Processes of Solid Fuels. Cheolyong Choi, Wei Zhang, Kazui Fukumoto, ... Zero Flowback Rate of Hydraulic ,Fracturing Fluid, in Shale Gas Reservoirs: Concept, Feasibility, and Significance. Lijun You, Nan Zhang*, Yili Kang, Jieming Xu,

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