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Recovery and reuse of fracturing flowback fluid

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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Recovery and reuse of fracturing flowback fluid
Modelling acid attack on concrete: Part I. The essential ...
Modelling acid attack on concrete: Part I. The essential ...

1/12/2005, · When unprotected concrete surfaces of sewer pipes,, waste water, treatment plants, cooling towers and other industrial constructions are, attacked, by, acidic solutions degradation of, the, concrete, microstructure occurs which seriously limits the service life of the construction components.

Acid Attack on Concrete - Effects & Results of Acid Attack ...
Acid Attack on Concrete - Effects & Results of Acid Attack ...

When acid attack concrete it, dissolves, both, hydrated, and, un-hydrated cement, compounds as well as calcareous aggregates. In many of the cases the chemical reaction results in water soluble calcium compounds which are leached away. Concrete vulnerability to acid attack increases as the pH of the acid in contact decreases from 6.5.

Effect of acid rain on economic loss of concrete ...
Effect of acid rain on economic loss of concrete ...

31/1/2019, · In order to study ,concrete, erosion caused by ,acid, rain and corresponding economic loss in Hangzhou, ,acid, rain status in Hangzhou was analyzed from 1983 to 2015, and ,concrete, damage was field surveyed, then laboratory sulfate attack experiments were conducted under dry-wet cycling based on the similar erosion intensity, after that, economic loss by ,acid, rain on residential ,concrete, structures ...

Acid Resistance - Portland Cement Association
Acid Resistance - Portland Cement Association

Water with this aggressive, carbon dioxide acts by acid reaction, and can attack concrete and other portland cement products whether or not they are carbonated. A German specification, DIN 4030, includes both criteria and a test method for assessing the …

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