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Acid wastewater from wire products industry

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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Acid wastewater from wire products industry
Engineering criteria for fracture flowback procedures ...
Engineering criteria for fracture flowback procedures ...

This paper describes the laboratory and field development of thermoplastic film materials used to reduce proppant ,flowback, that can occur after ,fracturing, treatments. The paper provides a summary of ,flowback, mechanism theories and laboratory tests comparing ,flowback, tendency for various types of treating procedures and materials.

Case Study:Development of a Low Permeability Low Pressure ...
Case Study:Development of a Low Permeability Low Pressure ...

With multistage gas lift valves installed at different locations on the fracturing pipestring, continuous flowback of the fracturing fluid can be realized, improving the flowback rate and efficiency. Resin coated sands are tailed in to effectively contol the the flowback of proppants after fracturing without any effects on fracturing stimulation results.

Fracturing Fluid Components - IntechOpen
Fracturing Fluid Components - IntechOpen

They are added to reduce the friction generated as the ,fluid, is pumped down the well tubulars. FR’s are typically added to the frac ,fluid, at a concentration of 0.25 to 2 gal/1000 gal. Figure 1 shows a comparison of the friction when pumping water, FR “Slickwater” and Guar “Waterfrac”.

Experimental Study of Fracturing Fluid Retention in Rough ...
Experimental Study of Fracturing Fluid Retention in Rough ...

However, field data show that the flowback rate of the fracturing fluid after fracturing is generally no higher than 30% . For conventional reservoir hydraulic fracturing, the flowback rate should be higher to reduce the damage caused by the external fluids to the reservoir [2–4].

NAE Website - Microbial Ecology of Hydraulic Fracturing
NAE Website - Microbial Ecology of Hydraulic Fracturing

In terms of the quality of the ,fluid,, the concentration of total dissolved solids (TDS, including salts and metals) in the water that returns to the surface varies over time; the earliest ,flowback, (e.g., the first 2 days) resembles the hydraulic ,fracturing fluid, itself and has the lowest concentration of TDS, while the later ,flowback, (e.g., after day 10) and the produced water have much higher ...

Choosing The Correct Flow Meters For Hydraulic Fracturing
Choosing The Correct Flow Meters For Hydraulic Fracturing

Flowback, - Since ,flowback, is initiated by pumping frac ,fluid, into the well, it already contains proppant, which by definition is a suspended solid in the ,fluid,. Furthermore, after injecting frac ,fluid, into the rock layer through the well, the ,fluid, is combined with produced water …

Research and Application of an Environmental-Friendly Low ...
Research and Application of an Environmental-Friendly Low ...

Refer to China’s oil and gas industry standard SY/T5107-2005 “Water-based ,fracturing fluid, performance evaluation method”, select the instrument JHJZ-I high temperature and high pressure dynamic drag reduction evaluation system drag reduction ,rate, tester to test the drag reduction ,rate, in 3% chlorination The reduction ,rate, of 0.1% CQFR slick water ,fracturing fluid, was tested in sodium ...

Water Management for Hydraulic Fracturing in ...
Water Management for Hydraulic Fracturing in ...

Load recovery can be as low as 10%, or as high as 60%. HF flowback fluid contains a combination of produced water, HF fluids, hydrocarbon liquids, and dissolved minerals from contact of the injected fluids with the reservoir rock, proppant, and solids from the reservoir, and …

Hydraulic fracturing - Wikipedia
Hydraulic fracturing - Wikipedia

During the process, ,fracturing fluid, leakoff (loss ,of fracturing fluid, from the fracture channel into the surrounding permeable rock) occurs. If not controlled, it can exceed 70% of the injected volume. This may result in formation matrix damage, adverse formation ,fluid, interaction, and altered fracture geometry, thereby decreasing efficiency.

(398b) Fracturing Fluid Retention and its Effect on Fluid ...
(398b) Fracturing Fluid Retention and its Effect on Fluid ...

However, ,low, recovery ,of fracturing fluid, results in much chemical residual in microfractures, which is closely related to relative permeability near fracture, ,flowback of fracturing fluid,, production ,rate,, etc. Our work is to investigate the effect ,of fracturing fluid, residual on oil and water flux. 2. …

Engineering criteria for fracture flowback procedures ...
Engineering criteria for fracture flowback procedures ...

This paper describes the laboratory and field development of thermoplastic film materials used to reduce proppant ,flowback, that can occur after ,fracturing, treatments. The paper provides a summary of ,flowback, mechanism theories and laboratory tests comparing ,flowback, tendency for various types of treating procedures and materials.

Determination of Cations in Hydraylic Fracturing Flowback ...
Determination of Cations in Hydraylic Fracturing Flowback ...

determination of anions in fracking flowback wastewater.7 The low flow rate of capillary IC systems (10–30 µL/min) allows these systems to be left on and always ready for analysis. As a result, less equilibration and calibration are required, in addition to low eluent consumption and waste generation (14–43 mL/d). With the increased mass

Reasons for the low flowback rates of fracturing fluids in ...
Reasons for the low flowback rates of fracturing fluids in ...

Natural Gas Industry B (2018-02-01) . Reasons for the ,low flowback, rates ,of fracturing, fluids in marine shale

Study on Fluid-Rock Interaction and Reuse of Flowback ...
Study on Fluid-Rock Interaction and Reuse of Flowback ...

Comparing to the original fracturing fluid whose density was 1.30 g/cc, the density of the flowback fluid decreased with time, indicating the loss of weighting agent into the formation. When the flowback fluid is reused, additional weighting agent might be needed depending on the fracturing job; however, the dosage can be less than the case using the fresh water.

Hydraulic Fracturing 101 - Earthworks
Hydraulic Fracturing 101 - Earthworks

Some studies have shown that more than 90% of fracking fluids may remain underground. Used fracturing fluids that return to the surface are often referred to as flowback, and these wastes are typically stored in open pits or tanks at the well site prior to disposal. Hydraulic fracturing – …

Treatment and recycling of acidic fracturing flowback fluid
Treatment and recycling of acidic fracturing flowback fluid

Acidic ,fracturing flowback fluid, (AFFF) has the characteristics of ,low, pH value, high chemical oxygen demand (COD), high corrosiveness and complex components. Surface discharge without treatment may contaminate the environment. However, wastewater treatment after centralized transportation has poten …

CN103881688A - Low-injury clean fracturing fluid of ...
CN103881688A - Low-injury clean fracturing fluid of ...

The ,low,-injury clean ,fracturing fluid, of the oilfield oil well has the advantages that the ,fracturing fluid, can thoroughly perform gel breaking, ,flowback rate, is high, the problems that gel breaking is not thorough and crack pore channels are blocked by residues after gel of the ,fracturing fluid, is broken in a stratum in the oil layer ,fracturing, improvement process can be solved, injury of the ...

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