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Treatment of industrial acid wastewater

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 industrial acid wastewater
The effect of wormholing on the fluid-loss coefficient in ...
The effect of wormholing on the fluid-loss coefficient in ...

OSTI.GOV Journal Article: The ,effect, of wormholing on the ,fluid,-loss coefficient in acid ,fracturing, Title: The ,effect, of wormholing on the ,fluid,-loss coefficient in acid ,fracturing, Full Record

Investigation of the Factors Influencing the Flowback ...
Investigation of the Factors Influencing the Flowback ...

A high salinity ,fracturing fluid, or a surfactant solution can increase the ,flowback, ratio. In addition, the injection pressure is proportional to the ,flowback, ratio, while the matrix permeability and the ,flowback, ratio have an inverse relationship. The adsorption–desorption process of gas has no significant ,effect, on the ,flowback, ratio.

Stimulation of oil and gas production | Info Shale : shale ...
Stimulation of oil and gas production | Info Shale : shale ...

Fracturing fluid, is usually composed of water (95%), proppant (4.5%) and chemical additives (0.5%), although the parameters are frequently changed during a single job so as to optimize the process. The application of proppant and chemical components makes hydraulic ,fracturing, apart from other pressure-based ,stimulation, procedures.

Modeling and Simulation of Shale Fracture Attitude | ACS Omega
Modeling and Simulation of Shale Fracture Attitude | ACS Omega

During the hydraulic ,fracturing, process, the ,fracturing fluid, may cause water retention, if the nearby secondary fractures subsequently close and get disconnected due to changes in effective stress distribution during ,flowback, and prodn. The circumstances and detailed mechanisms assocd. with this phenomenon are still poorly understood.

EXPERIMENTAL INVESTIGATION OF SHALE GAS PRODUCTION ...
EXPERIMENTAL INVESTIGATION OF SHALE GAS PRODUCTION ...

this ,fracturing fluid, can enter the formation and block the rock pores, thus reducing the effective permeability to gas and causing gas production impairment. This flow hindrance caused by ,fracturing fluid, invasion is called ‘fracture-face damage’ and it is believed to aggravate during shut-in time.

A systematic investigation into the flowback cleanup of ...
A systematic investigation into the flowback cleanup of ...

Hydraulic fracturing is widely employed to increase the productivity of wells in tight and ultratight fields. However, this encouraging approach sometimes is not successful to meet the predicted production enhancement. The most common cause is an inefficient cleanup …

Oil and Gas Production Wastewater: Soil Contamination and ...
Oil and Gas Production Wastewater: Soil Contamination and ...

During oil and natural ,gas production,, so-called “produced water” comprises the largest byproduct stream. In addition, many oil and gas operations are augmented via injection of hydraulic ,fracturing, (HF) fluids into the formation. Both produced water and HF fluids may contain hundreds of individual chemicals, some known to be detrimental to public health and the environment.

EXPERIMENTAL INVESTIGATION OF SHALE GAS PRODUCTION ...
EXPERIMENTAL INVESTIGATION OF SHALE GAS PRODUCTION ...

this fracturing fluid can enter the formation and block the rock pores, thus reducing the effective permeability to gas and causing gas production impairment. This flow hindrance caused by fracturing fluid invasion is called ‘fracture-face damage’ and it is believed to aggravate during shut-in time.

Fracture treatment design - PetroWiki
Fracture treatment design - PetroWiki

15/1/2018, · To design the optimum treatment, the ,effect, of fracture length and fracture conductivity on the ,productivity, and the ultimate recovery from the well must be determined. As in all engineering problems, sensitivity runs need to be made to evaluate uncertainties, such as estimates of formation permeability and drainage area.

Chip Flood (vs) Core Flood—Assessment of Flowback and Oil ...
Chip Flood (vs) Core Flood—Assessment of Flowback and Oil ...

Invasion efficiency(inv%)=(Winv−Wo)(ρw−ρo)×Vp×100%(2) ・ ,Flowback,: Subsequent to the invasion process, the core is placed again inside of the core holder and the oil is pumped at a constant pressure drop of 300 psi from side A of the core holder for about 10 pore volumes.

New viscoelastic fluid technology enhances productivity ...
New viscoelastic fluid technology enhances productivity ...

New ,viscoelastic fluid technology enhances productivity,. A new ,fracturing, system development based on new viscoelastic ,fluid, tech-nology takes full advantage of the well-studied chemistry of guar-based poly-mers and metal ion crosslinking reac-tions.

Flowback Study of Hydraulic Fracturing in Shale Gas Reservoirs
Flowback Study of Hydraulic Fracturing in Shale Gas Reservoirs

requirements are proposed to improve the long-term productivity after hydraulic fracturing. Fracture cleanup after hydraulic fracturing is an important factor to impacting long-term production forecasting. It plays a significant role in optimizing flowback of a fracturing fluid to maintain the optimal conductivity in hydraulic fractures.

Effect of Maturity and Mineralogy on Fluid-Rock Reactions ...
Effect of Maturity and Mineralogy on Fluid-Rock Reactions ...

shows that fracturing fluid interactions can also lead to significant changes in carbonyl content, aromaticity, average aliphatic chain length and release of metals from kerogen isolates.

Application of Natural Gas-Based Foamed Fracturing Fluid ...
Application of Natural Gas-Based Foamed Fracturing Fluid ...

28/1/2019, · ,fluid flowback, from foam-based ,fluid, is studied using numerical simulation. ... ,fracturing fluid, has a dynamic ,fluid, leak-off behavior and increase effective viscosity over the base ,fluid, that allows pump and transport sand at ... Proppant transport and its ,effect on productivity, Improved fracture initiation and cluster

Ainil_Izzyan_Naffi_PE12317_Desssertation.pdf - STUDY ON ...
Ainil_Izzyan_Naffi_PE12317_Desssertation.pdf - STUDY ON ...

Volume of lost ,fracturing fluid, depends on permeability of rocks and surface area of fracture. 1.2.2 Check-valve ,Effect, Fluids can be trapped by check-valve ,effect, because injectivity index is much higher than ,productivity, index.

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

Academia.edu is a platform for academics to share research papers.

Stimulation of oil and gas production | Info Shale : shale ...
Stimulation of oil and gas production | Info Shale : shale ...

Fracturing fluid, is usually composed of water (95%), proppant (4.5%) and chemical additives (0.5%), although the parameters are frequently changed during a single job so as to optimize the process. The application of proppant and chemical components makes hydraulic ,fracturing, apart from other pressure-based ,stimulation, procedures.

Numerical Simulation of Productivity of Fractured Gas Well ...
Numerical Simulation of Productivity of Fractured Gas Well ...

In order to reduce secondary pollution,,fracturing fluid, should be discharged in time after ,fracturing,.The ,effect, of production well is directly affected by ,flowback, rate.Considering the ,effect, of pollution zone around fractures,combined with ,productivity, and ,flowback, rate,a gas-liquid two-phase percolation model is established and given the numerical solutions, and the influence of ,flowback, ...

Energies | Free Full-Text | Numerical Investigation of ...
Energies | Free Full-Text | Numerical Investigation of ...

Whether the fracturing fluid remains in the matrix or fractures, it will affect the productivity of tight oil wells. Spontaneous imbibition of fracturing water into the matrix was considered as a possible mechanism to improve oil production [ 26, 27 ].

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