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Flowback rate and physical properties of fracturing 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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Flowback rate and physical properties of fracturing fluid
Heterogeneous Fenton Oxidation Using Magnesium Ferrite ...
Heterogeneous Fenton Oxidation Using Magnesium Ferrite ...

According to Figure 3, the ,rate, of IBP degradation proportionally increased in a 10.0-30.0 mM H 2 O 2 range. Increasing H 2 O 2 concentration from 10.0 to 30.0 mM was accompanied by an increase in the apparent pseudo-first-order ,rate, constant from 0.035 to 0.107 min -1 .

1. Introduction
1. Introduction

The IBP ,degradation, sharply increased with an increasing catalyst dose from 0.2 until an optimal value of 0.5 g L-1. A further increase of magnesium ferrite concentration up to 1.0 g L-1 was affected positively only at the first 20 minutes. Intrestingly, IBP ,degradation, efficiency were equal for the catalytic reaction time of 30-40 min.

Recent organic pollution and its biosensing methods ...
Recent organic pollution and its biosensing methods ...

At the peak of ,organic, pollution in advanced countries in the 1960s, the official or conventional ,method, for BOD was limited to the BOD 5 ,method,. 21,60 The BOD 5 ,method, has several problems that prevent it satisfying the needs for practical use in ,wastewater, control, i.e., this ,method, is time-consuming, tedious, and requires a high degree of proficiency from the person conducting the test.

Recent organic pollution and its biosensing methods ...
Recent organic pollution and its biosensing methods ...

At the peak of ,organic, pollution in advanced countries in the 1960s, the official or conventional ,method, for BOD was limited to the BOD 5 ,method,. 21,60 The BOD 5 ,method, has several problems that prevent it satisfying the needs for practical use in ,wastewater, control, i.e., this ,method, is time-consuming, tedious, and requires a high degree of proficiency from the person conducting the test.

Determining the degradation efficiency and mechanisms of ...
Determining the degradation efficiency and mechanisms of ...

The ,degradation rate, of the EV dye as a function of reaction pH is shown in Figure Figure7. 7. The ,degradation rate, of the EV dye remained relatively constant as the pH of the solution was increased. A reduction in the ,degradation rate, was clearly observed at pH 3, and might be attributable to the reaction of zinc metal with protons, and the subsequent slow release of hydrogen gas.

US8721813B1 - Degradation of TATP TNT and RDX using ...
US8721813B1 - Degradation of TATP TNT and RDX using ...

degradation, Prior art date 2006-04-05 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US13/346,383 Inventor Christian Clausen, III Cherie Geiger Michael Sigman Rebecca Fidler

Kinetics and Mechanism of Ultrasonic Activation of ...
Kinetics and Mechanism of Ultrasonic Activation of ...

Ultrasound (US) was shown to activate persulfate (PS) providing an alternative activation ,method, to base or heat as an in situ chemical oxidation (ISCO) ,method,. The kinetics and mechanism ,of, ultrasonic activation of PS were examined in aqueous solution using an in situ electron paramagnetic resonance (EPR) spin trapping technique and radical trapping with probe compounds.

Synthesis of Mesoporous Iron Oxides by an Inverse Micelle ...
Synthesis of Mesoporous Iron Oxides by an Inverse Micelle ...

In the best case scenario, 2-line ferrihydrite shows the highest degradation ,rate, constant (0.0258 min –1) among all the catalysts tested. The excellent performance of 2-line ferrihydrite is mainly attributed to the larger surface area but also related to surface hydroxyl groups, ,acidic, products, and possible additional adsorption sites.

WO2014158456A1 - Device and methods of using a ...
WO2014158456A1 - Device and methods of using a ...

Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a ,piezoelectric, microbalance sensor. A particular embodiment of a ,piezoelectric, microbalance sensor ...

Nuclear wastewater decontamination by 3D-Printed ...
Nuclear wastewater decontamination by 3D-Printed ...

Such functional 3D-printing has been demonstrated for example with graphene and carbon nanotubes to form conductive objects, 22 ceramic nanoparticles for ,piezoelectric, applications, 23 and metal–,organic, frameworks to form gas adsorbing structures. 24 Monolithic zeolite-containing structures have been produced and used in dry applications such as gas adsorption, 25 gas separation, 26,27 and ...

Chinese Journal of Chemical Physics
Chinese Journal of Chemical Physics

Photocatalytic ,degradation, of ,organic, pollutants has become a hot research topic because of its low energy consumption and environmental-friendly characteristics. Bismuth oxide (Bi2O3) nanocrystals with a bandgap ranging between 2.0-2.8 eV has attracted increasing attention due to high activity of photodegradation of ,organic, pollutants by utilizing visible light.

Thin Coatings of α‐ and β‐Bi2O3 by Ultrasonic Spray ...
Thin Coatings of α‐ and β‐Bi2O3 by Ultrasonic Spray ...

The reaction of β‐Bi 2 O 3 with CO 2, either formed in situ upon release during the photodegradation of ,organic, compounds or as a result of contact with CO 2(aq) under light irradiation, was discussed in previous studies on β‐Bi 2 O 3 particles. 3, 50-53 In contrast, XRD studies of the samples α‐Bi 2 O 3 ‐1 and β‐Bi 2 O 3 ‐1 after the ,degradation, experiments do not show any ...

Enhancement and inhibition effects of water matrices ...
Enhancement and inhibition effects of water matrices ...

1/1/2015, · Using 0.21 mM (100 ppm) of DXC solution, 20, 40 and 60 W of applied power were used in order to evaluate its effect on the initial degradation ,rate,. The results are shown in Table 1. As expected, the degradation ,rate, is the highest (4.36 × 10 −8 M s −1) when the applied power is the greatest (60 W).

Photocatalytic Advanced Oxidation Processes for Water ...
Photocatalytic Advanced Oxidation Processes for Water ...

The degradation rate of AO 7 was 93.4% by combining BaTiO 3 microcrystals with ferrous ions. You et al. 95 studied a piezoelectric‐photocatalytic system, which was composed of a heterogeneous piezoelectric‐ZnO@photoelectric‐TiO 2 core‐shell nanofibers for the degradation of MO.

Determining the degradation efficiency and mechanisms of ...
Determining the degradation efficiency and mechanisms of ...

The degradation ,rate, of the EV dye as a function of reaction pH is shown in Figure Figure7. 7. The degradation ,rate, of the EV dye remained relatively constant as the pH of the solution was increased. A reduction in the degradation ,rate, was clearly observed at pH 3, and might be attributable to the reaction of zinc metal with protons, and the subsequent slow release of hydrogen gas.

Water Soluble Polymer Flocculants: Synthesis ...
Water Soluble Polymer Flocculants: Synthesis ...

A comprehensive review of pH‐responsive polymers can be found elsewhere. 125 Yu et al. used pH‐responsive HM‐alginate/chitosan complexes to selectively flocculate pollutants from synthetic ,wastewater,. 126 At ,acidic, pH (below 4), the amphiphilic HM‐alginate was negatively charged and dispersed in water as a colloidal phase, attracting Sudan IV (a hydrophobic dye) toward its …

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