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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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Determination of fracturing fluid loss rate from pressure ...
Determination of fracturing fluid loss rate from pressure ...

The ,fracturing fluid, used in the Muddy J ,fracturing, treatment is considered to be a power-law ,fluid, with n=0.75 and a ,viscosity, exponent of a=1. The ,fluid, loss coefficient calculated by using this ,formula, for the polyemulsion ,fracturing fluid, used in the Muddy J treatment is calculated as being 0.00053 ft/√min (0.016 cm/√min).

Numerical Simulations on the Front Motion of Water ...
Numerical Simulations on the Front Motion of Water ...

Obviously, permeability will affect the permeation depth, and this effect varies with ,fluid viscosity,. 5.1.3. Their Combined Impacts through Mobility. The previous two sections observe that the permeation depth increases with permeability but decreases with ,viscosity,. The impacts of permeability and ,viscosity, on permeation depth are interrelated.

International Journal of Oil Gas and Coal Technology ...
International Journal of Oil Gas and Coal Technology ...

Abstract: Hydraulic ,fracturing, is considered as an effective approach for the development of tight oil reservoirs. Unlike conventional reservoirs, after a large volume injection of the ,fracturing fluid,, the ,flowback, rate in tight oil reservoirs is considerably lower whereas the underlying mechanism explaining water retention remains unclear.

International Journal of Oil Gas and Coal Technology ...
International Journal of Oil Gas and Coal Technology ...

Abstract: Hydraulic ,fracturing, is considered as an effective approach for the development of tight oil reservoirs. Unlike conventional reservoirs, after a large volume injection of the ,fracturing fluid,, the ,flowback, rate in tight oil reservoirs is considerably lower whereas the underlying mechanism explaining water retention remains unclear.

Original Research Analysis of Chemical and Toxicological ...
Original Research Analysis of Chemical and Toxicological ...

proved in American research, the amount of the ,fluid, obtained in shale gas ,fracturing, is lower than in the case of a tight oilfield: 40-60% for a vertical well and 10-30% for a horizontal well [11, 12]. The majority of ,flowback, water outflow takes place during the first hours to a dozen or so days. During contact with the deposit, the ...

Experimental study on the enhanced oil recovery by in situ ...
Experimental study on the enhanced oil recovery by in situ ...

A digital temperature gauge is used to measure the PVT cell temperatures with an accuracy is ±1 K. In zone 2, an in‐line viscometer (Hydramotion XL7) is installed inside the oven to measure the ,viscosity, of ,fluid, in the range from 0.1 to 10 000 mPa·s. The ,viscosity, accuracy is ±1% of the reading, and repeatability is ±0.3% of the reading.

Original Research Analysis of Chemical and Toxicological ...
Original Research Analysis of Chemical and Toxicological ...

plex (because of low ,viscosity, and high injection speed) • Cracks decrease in height and part of the ,flowback, water can be re-used to develop another ,fracturing fluid, [6, 9] ,Fracturing, fluids prepared on the basis of surfactants (the so-called viscoelastic surfactant (VES) fluids) belong to another group. Required ,viscosity, parameters are obtained

Potassium hydroxide | KOH - PubChem
Potassium hydroxide | KOH - PubChem

Potassium hydroxide,, also known as lye is an inorganic compound with the chemical ,formula, KOH. Also commonly referred to as caustic potash, it is a potent base that is marketed in several forms including pellets, flakes, and powders. It is used in various chemical, industrial and manufacturing applications.

Study on a Nonionic Surfactant/Nanoparticle Composite ...
Study on a Nonionic Surfactant/Nanoparticle Composite ...

14/4/2021, · The composite flooding system composed of a surfactant and nanoparticles has shown great application potential in enhancing oil recovery. However, at present, these research studies are mainly focused on anionic surfactants. Relatively speaking, alkanolamide (CDEA), a nonionic surfactant, has the characteristics of a small adsorption amount on the rock surface, no cloud point, good …

Modelling of hydraulic fracturing process by coupled ...
Modelling of hydraulic fracturing process by coupled ...

A three-dimensional model is presented and used to reproduce the laboratory hydraulic ,fracturing, test performed on a thick-walled hollow cylinder limestone sample. This work aims to investigate the implications of the ,fluid, flow on the behaviour of the micro-structure of the rock sample, including the material strength, its elastic constants and the initialisation and propagation of fractures.

Methods of Treating Flowback Water - KROFF WELL SERVICES INC.
Methods of Treating Flowback Water - KROFF WELL SERVICES INC.

Methods of treating flowback water, from a subterranean formation penetrated by a well bore are provided, comprising: (a) providing remediated ,flowback, water having a ferrous iron (Fe +2 ) ion

A New Experimental Approach for Hydraulic Fracturing Fluid ...
A New Experimental Approach for Hydraulic Fracturing Fluid ...

During hydraulic ,fracturing,, the ,viscosity, of hydraulic ,fracturing fluid, (HFF) should be carefully optimized considering the proppant carrying ability and filtrate loss control [4–6]. For conventional resources such as sandstone or carbonate formation, the ,viscosity, of HFF should be higher to achieve the proppant carrying capacity and ,fluid, loss control purpose.

Reutilization of Fracturing Flowback Fluids in Surfactant ...
Reutilization of Fracturing Flowback Fluids in Surfactant ...

The oil/water interfacial tension was lowered to 10-3 mN/m due to 0.004 to 0.008 wt% of viscoelastic surfactant in the ,flowback, fluids. The ,fracturing flowback, …

Study of the Potential Impacts of Hydraulic Fracturing on ...
Study of the Potential Impacts of Hydraulic Fracturing on ...

Given the FracFocus-reported total water volume (V^o1} [US gallons) and assuming that volumes are effectively additive, and where n is the number of water types, ytotal ~ yn j/i n -v VH20 — Li=\ VH20 UJ using the FracFocus-reported maximum water concentration in the hydraulic ,fracturing fluid, (percent by mass for each water type, xlH20}, and assuming an average density for each water type (P#2o) (lb/US …

(PDF) Well Completion Design - Jonathan Bellarby | last ...
(PDF) Well Completion Design - Jonathan Bellarby | last ...

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Study of Hydraulic Fracturing Real-time Evaluation Technology
Study of Hydraulic Fracturing Real-time Evaluation Technology

During the process of injection work, the flowing fluid in fracture should meet the principle of fluid volumetric balance: the volume of injected fluid V inj should equal to the summation of fluid loss volume V ls and the fracture volume V frac.

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