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Treatment of acid wastewater by lime neutralization process

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 by lime neutralization process
Hydraulic fracturing - Wikipedia
Hydraulic fracturing - Wikipedia

Injection of radioactive tracers along with the fracturing fluid is sometimes used to determine the injection profile and location of created fractures. Radiotracers are selected to have the readily detectable radiation, appropriate chemical properties, and a half life and toxicity level that will minimize initial and residual contamination.

The effect of hydraulic flowback and produced water on ...
The effect of hydraulic flowback and produced water on ...

20/4/2017, · Hydraulic ,fracturing fluid, are complex mixtures containing high concentrations of salts (up to 330,000 ppm), organic, and metal contaminants. However, little data exist on the potential mechanisms ...

Shale Gas Flowback Water Treatment Reuse and Disposal
Shale Gas Flowback Water Treatment Reuse and Disposal

Shale Gas ,Flowback, Water Treatment, Reuse, and Disposal. Presented by Dave Yoxtheimer, P.G. Hydraulic ,Fracturing, Process. -Each well uses about 3 to 7 million gallons of water. -A range of 10% to >50% of the injected fluids return, known as ,flowback, water. -Need proper fluids management. Source: Chesapeake Energy.

Fracking - Beachapedia
Fracking - Beachapedia

Many ,fracturing fluid, chemicals are known to be toxic to humans and wildlife, ... the volume of ,fracturing flowback, and brines produced in Pennsylvania was estimated to be 9 million gallons of wastewater per day, ... leakage could go on for long periods of time without ,detection, and be …

Chemicals in Hydraulic Fracturing
Chemicals in Hydraulic Fracturing

Large volumes of water are injected under pressure to fracture the formation and to release entrapped gas bubbles. The gas is subsequently collected at the surface together with the ,flowback, (the reemerging ,fracturing fluid,) and formation water (the emerging geogenic ,fluid,). For process optimization multiple chemical additives are employed.

Environmental impacts of fracking - Global Energy Monitor
Environmental impacts of fracking - Global Energy Monitor

These parts include of (1) drill pad construction and operation, (2) the construction, integrity, and performance of the wellbores, (3) the injection of the ,fluid, once it is underground (which proponents consider the actual "fracking"), (4) the ,flowback, of the ,fluid, back towards the surface, (5) blowouts, often unreported, which spew hydraulic ,fracturing fluid, and other byproducts across surrounding area, (5) integrity of other pipelines involved and (6) the disposal of the ,flowback, ...

Chemicals in Hydraulic Fracturing
Chemicals in Hydraulic Fracturing

Large volumes of water are injected under pressure to fracture the formation and to release entrapped gas bubbles. The gas is subsequently collected at the surface together with the ,flowback, (the reemerging ,fracturing fluid,) and formation water (the emerging geogenic ,fluid,). For process optimization multiple chemical additives are employed.

Bacterial communities associated with hydraulic fracturing ...
Bacterial communities associated with hydraulic fracturing ...

The lower numbers of viable bacteria detected in ,flowback, water from the CT site could also be due to the fact that: (A) the natural gas well at the CT site was fractured in December and had much lower numbers of viable bacteria in the source pond water compared with the SM site (Table 2), which was fractured in July and (B) ,flowback, occurred 24 h after ,fracturing, at the CT site, which provided a …

Environmental impacts of fracking - Global Energy Monitor
Environmental impacts of fracking - Global Energy Monitor

These parts include of (1) drill pad construction and operation, (2) the construction, integrity, and performance of the wellbores, (3) the injection of the ,fluid, once it is underground (which proponents consider the actual "fracking"), (4) the ,flowback, of the ,fluid, back towards the surface, (5) blowouts, often unreported, which spew hydraulic ,fracturing fluid, and other byproducts across surrounding area, (5) integrity of other pipelines involved and (6) the disposal of the ,flowback, ...

Non-Targeted chemical characterization of a Marcellus ...
Non-Targeted chemical characterization of a Marcellus ...

1/3/2018, · All three additives were found during all analyzed ,fracturing fluid, stages. However, glutaraldehyde and cinnamaldehyde were not detectable in any of the analyzed ,flowback, samples . Kahrilas et al. reported modeled down-bore transformations of glutaraldehyde and concluded that polymerizations are a dominant mechanism .

Abstract: INFLUENCE OF HYDRAULIC FRACTURING ON LEAKY ...
Abstract: INFLUENCE OF HYDRAULIC FRACTURING ON LEAKY ...

Rates of flux are small, and ranged from approximately 0.086 to 0.006 m 3 d-1 for hydraulic ,fracturing, scenarios. Small upward fluxes and the potential for natural leakage, unrelated to modern hydraulic ,fracturing, operations, complicate chemical ,detection, and definitive identification of leakage sources.

Fracking - Beachapedia
Fracking - Beachapedia

At this point, the pressure created causes the formation to crack or fracture. Once the fractures have been created, injection ceases and a portion of the ,fracturing, fluids begin to ,flow back, to the surface. Proppants, which were injected as part of the frac ,fluid, mixture, remain in the target formation to hold open the fractures.

Microbial communities in flowback water impoundments from ...
Microbial communities in flowback water impoundments from ...

In the case of each of the wells, the ,fracturing fluid, was a mixture of the source water, proppant (sand; 99.5% by volume), corrosion inhibitor, friction reducer, HCl (0.47% by volume), and glutaraldehyde (0.03% by volume for microbial control). Impoundments were about 4 m deep and contained c. 3 million liters of ,flowback, …

Indications of Transformation Products from Hydraulic ...
Indications of Transformation Products from Hydraulic ...

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 liq. chromatog./quadrupole-time-of-flight mass spectrometry.

Non-Targeted chemical characterization of a Marcellus ...
Non-Targeted chemical characterization of a Marcellus ...

1/3/2018, · All three additives were found during all analyzed ,fracturing fluid, stages. However, glutaraldehyde and cinnamaldehyde were not detectable in any of the analyzed ,flowback, samples . Kahrilas et al. reported modeled down-bore transformations of glutaraldehyde and concluded that polymerizations are a dominant mechanism .

Fracture closure pressure determination - Schlumberger ...
Fracture closure pressure determination - Schlumberger ...

The bounding values of α for a wall-building ,fluid, are ½ and 1, most common ,fracturing, fluids have a value close to 0.6. In practice, it should be noted that the G-equation leads essentially to the same results when α varies between its bounding limits so that the computation may be done using either value or the average resulting value.

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