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Can acid wastewater enter UASB directly

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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Can acid wastewater enter UASB directly
Stimulation Project - STARSE Energy and Technology(Group ...
Stimulation Project - STARSE Energy and Technology(Group ...

The maximum pressure of the wellhead in the fracturing operation is 110MPa (50MPa on the bridge plug), the highest single-stage fracturing fluid volume is 2818.8m 3, the total well accumulates the well fluid amount of 50000m 3, and the bridge plug can still ensure the seal

Agenda - SPE Hydraulic Fracturing Technology Conference ...
Agenda - SPE Hydraulic Fracturing Technology Conference ...

Dynamic Fracture ,Volume, Estimation using ,Flowback, Data Analysis and its Correlation to Completion-Design Parameters T.M. Moussa, H. Dehghanpour, Y. Fu, …

Hydraulic fracturing (‘fraccing’) techniques including ...
Hydraulic fracturing (‘fraccing’) techniques including ...

Best practice requires that a larger ,volume, of water (,flowback, water) is recovered from a well after hydraulic ,fracturing, is completed, relative to the ,volume, of injected ,fluid,. Issues and impacts Hydraulic ,fracturing, has attracted a large amount of community concern, especially in relation to potential risks to human health and the environment from the chemicals used.

Stimulation Project - STARSE Energy and Technology(Group ...
Stimulation Project - STARSE Energy and Technology(Group ...

The maximum pressure of the wellhead in the fracturing operation is 110MPa (50MPa on the bridge plug), the highest single-stage fracturing fluid volume is 2818.8m 3, the total well accumulates the well fluid amount of 50000m 3, and the bridge plug can still ensure the seal

New Method for Quantitative Prediction of Liquid Flowback ...
New Method for Quantitative Prediction of Liquid Flowback ...

Liquid invasion damage plays a main role in the formation damage of low-permeability sandstone reservoirs. The long-term retention of working ,fluid, in the formation will cause serious water blocking damage. In order to research the quantitative prediction of liquid ,flowback, in low-permeability sandstone reservoirs, a new method for quantitative prediction of liquid ,flowback, based on the ...

Sensitivity Analysis and Optimization of Technological ...
Sensitivity Analysis and Optimization of Technological ...

According to hydraulic ,fracturing, theory, a determined amount of ,fracturing fluid, injected means a definite fracture half-length if other conditions are fixed. Taking the corresponding relationship of fracture length and CO 2 injection ,volume, into account, we chose the fracture half-length as a research target in the optimization of parameters.

(PDF) Improving Shale Production Through Flowback Analysis ...
(PDF) Improving Shale Production Through Flowback Analysis ...

SPE 175143 ,Flowback, Fracture Closure: A Key Factor for Estimating Effective Pore- ,Volume, by D.O. Ezulike, O.A. Adefidipe, Y. Fu, University of Alberta, et al. Salty ,Flowback, Research May Explain ,Fluid, Movement in Shale Another area of great interest to those researching ,flowback, is the interaction of water and salt inside the shale reservoir.

Study of Influences of Fracture Additives on Stability of ...
Study of Influences of Fracture Additives on Stability of ...

The concentrations of crosslinkers in fracturing fluid are relatively low and range from 0.5 to 250 mg L-1 . Friction reducers are added to allow fracturing fluids and sand, or other solid materials called proppants, to be pumped to the target zone at a higher rate and reduced pressure than if water alone was used.

The Influence of Injected Fluids on Microscopic Pore ...
The Influence of Injected Fluids on Microscopic Pore ...

Fracturing practice shows that the salinity of the flowback fluid of the shale reservoir is generally high [18, 19]. With the extension of the backflow time, the salinity of the flowback fluid keeps increasing, reaching up to , whereas the salinity of the slick water injected during fracturing is very low (approximately 1000 mg L −1 ) [ 18 , 19 ].

Reduced adsorption of polyacrylamide‐based fracturing ...
Reduced adsorption of polyacrylamide‐based fracturing ...

It leads to a large ,volume, of PAM remaining in the shale reservoirs after hydraulic ,fracturing,. Classically, only 5%‐55% of slick‐water is subsequently recovered as flow‐back. 20-22 The slick‐water adsorbed in the fractures or rock matrix seriously limits the production rate of oil/gas (Figure 1).

Agenda - SPE Hydraulic Fracturing Technology Conference ...
Agenda - SPE Hydraulic Fracturing Technology Conference ...

Dynamic Fracture ,Volume, Estimation using ,Flowback, Data Analysis and its Correlation to Completion-Design Parameters T.M. Moussa, H. Dehghanpour, Y. Fu, …

Reduced adsorption of polyacrylamide‐based fracturing ...
Reduced adsorption of polyacrylamide‐based fracturing ...

It leads to a large ,volume, of PAM remaining in the shale reservoirs after hydraulic ,fracturing,. Classically, only 5%‐55% of slick‐water is subsequently recovered as flow‐back. 20-22 The slick‐water adsorbed in the fractures or rock matrix seriously limits the production rate of oil/gas (Figure 1).

Study of Influences of Fracture Additives on Stability of ...
Study of Influences of Fracture Additives on Stability of ...

The concentrations of crosslinkers in fracturing fluid are relatively low and range from 0.5 to 250 mg L-1 . Friction reducers are added to allow fracturing fluids and sand, or other solid materials called proppants, to be pumped to the target zone at a higher rate and reduced pressure than if water alone was used.

Stress redistribution in multi-stage hydraulic fracturing ...
Stress redistribution in multi-stage hydraulic fracturing ...

1 ,Sinopec, Research Institute of Petroleum Engineering, Beijing 100101, China Edited by Yan-Hua Sun ... We assume that the ,fracturing fluid, is incompressible, ... to create as many crossing fractures as possible to maximize the stimulated reservoir ,volume,. During stage ,fracturing,, the main hydraulic fractures are created one after another.

(PDF) Improving Shale Production Through Flowback Analysis ...
(PDF) Improving Shale Production Through Flowback Analysis ...

SPE 175143 ,Flowback, Fracture Closure: A Key Factor for Estimating Effective Pore- ,Volume, by D.O. Ezulike, O.A. Adefidipe, Y. Fu, University of Alberta, et al. Salty ,Flowback, Research May Explain ,Fluid, Movement in Shale Another area of great interest to those researching ,flowback, is the interaction of water and salt inside the shale reservoir.

Stress redistribution in multi-stage hydraulic fracturing ...
Stress redistribution in multi-stage hydraulic fracturing ...

1 ,Sinopec, Research Institute of Petroleum Engineering, Beijing 100101, China Edited by Yan-Hua Sun ... We assume that the ,fracturing fluid, is incompressible, ... to create as many crossing fractures as possible to maximize the stimulated reservoir ,volume,. During stage ,fracturing,, the main hydraulic fractures are created one after another.

Sensitivity Analysis and Optimization of Technological ...
Sensitivity Analysis and Optimization of Technological ...

According to hydraulic ,fracturing, theory, a determined amount of ,fracturing fluid, injected means a definite fracture half-length if other conditions are fixed. Taking the corresponding relationship of fracture length and CO 2 injection ,volume, into account, we chose the fracture half-length as a research target in the optimization of parameters.

New Method for Quantitative Prediction of Liquid Flowback ...
New Method for Quantitative Prediction of Liquid Flowback ...

Liquid invasion damage plays a main role in the formation damage of low-permeability sandstone reservoirs. The long-term retention of working ,fluid, in the formation will cause serious water blocking damage. In order to research the quantitative prediction of liquid ,flowback, in low-permeability sandstone reservoirs, a new method for quantitative prediction of liquid ,flowback, based on the ...

The Influence of Injected Fluids on Microscopic Pore ...
The Influence of Injected Fluids on Microscopic Pore ...

Fracturing practice shows that the salinity of the flowback fluid of the shale reservoir is generally high [18, 19]. With the extension of the backflow time, the salinity of the flowback fluid keeps increasing, reaching up to , whereas the salinity of the slick water injected during fracturing is very low (approximately 1000 mg L …

Hydraulic fracturing (‘fraccing’) techniques including ...
Hydraulic fracturing (‘fraccing’) techniques including ...

Best practice requires that a larger ,volume, of water (,flowback, water) is recovered from a well after hydraulic ,fracturing, is completed, relative to the ,volume, of injected ,fluid,. Issues and impacts Hydraulic ,fracturing, has attracted a large amount of community concern, especially in relation to potential risks to human health and the environment from the chemicals used.

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