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What is used to adjust the acidity of alkaline wastewater

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What is used to adjust the acidity of alkaline wastewater
Geochemical Characteristics of Gas and Flowback Water in ...
Geochemical Characteristics of Gas and Flowback Water in ...

A total of 34 samples were collected during a 66–days period after the hydraulic ,fracturing, of well XJC 1. The ,fracturing fluid, for the Karamay Formation was also collected. The ,flowback fluid, samples from the Lucaogou Formation in well XJC 1 were collected from day 14 to day 20 after ,fracturing,, and a total of five samples were collected.

Failure of a gas well to respond to a foam hydraulic ...
Failure of a gas well to respond to a foam hydraulic ...

OSTI.GOV Conference: Failure of a ,gas, well to respond to ,a foam hydraulic fracturing treatment

Petropedia - What is Flowback? - Definition from Petropedia
Petropedia - What is Flowback? - Definition from Petropedia

Flowback, is very much associated with producing natural ,gas, or shale ,gas, through shale rocks using horizontal drilling and hydraulic ,fracturing,. It is recovered from the well at the surface when the ,fluid, is used to hydraulically fracture the shale formations. ,Flowback, is considered to be an important step in drilling operations.

Hydraulic Fracturing - Regulations and Exemptions - Tip of ...
Hydraulic Fracturing - Regulations and Exemptions - Tip of ...

Therefore, the process of injecting ,fracturing fluid, into the target formation as part of oil or ,gas, production is exempt from these requirements unless the ,fluid, contains diesel. While fracking fluids are exempt under SWDA, wastewater from oil and ,gas, operations, ,flowback, and produced water, are not exempt if disposed of in deep injection wells.

Polymer-Free Fracturing Fluid Successful in Tight Gas ...
Polymer-Free Fracturing Fluid Successful in Tight Gas ...

Conventional polymer-base fluids used in CO2 foam ,fracturing, operations do not clean up well in tight ,gas, sands. If sufficient ,fluid, is not recovered, the polymer left behind shortens the effective fracture half-length. Flowing the well back up tubing increases the ,flowback, velocity, which aids cleanup by increasing the liquid-carrying capacity.

Fracking 101 | NRDC
Fracking 101 | NRDC

Every year, the oil and ,gas, industry generates billions of gallons of wastewater, a potentially hazardous mixture of ,flowback, (used fracking ,fluid,), produced water (naturally occurring water that ...

Petropedia - What is Flowback? - Definition from Petropedia
Petropedia - What is Flowback? - Definition from Petropedia

Flowback, is very much associated with producing natural ,gas, or shale ,gas, through shale rocks using horizontal drilling and hydraulic ,fracturing,. It is recovered from the well at the surface when the ,fluid, is used to hydraulically fracture the shale formations. ,Flowback, is considered to be an important step in drilling operations.

Recovery and treatment of fracturing flowback fluids in ...
Recovery and treatment of fracturing flowback fluids in ...

Based on the characteristics of ,gas, testing after ,fracturing, in this ,gas field,, a ,fracturing flowback fluid, recovery and treatment method suitable for the Sulige Gasfield has been developed with the landform features of this area taken into account.

JPT Homepage
JPT Homepage

The ,Gas, Exporting Countries Forum (GECF) forecasts in its annual global ,gas, outlook that natural ,gas, will comprise nearly a third of the global energy mix by 2050 and fuel more than half of the world’s electricity production. So, when it comes to fixing climate change, natural ,gas, …

Optimization of Fracturing Fluid Flowback Based on Fluid ...
Optimization of Fracturing Fluid Flowback Based on Fluid ...

The purpose of frac ,fluid flowback, is to outflow the ,fracturing fluid, and prevent the proppant backflow, which determines the effect of ,fracturing fluid flowback,. The ,fracturing, treatment in ,field, lacks relevant theoretical models for prediction. Therefore, this work focuses on establishing the ,flowback, model of hydraulic ,fracturing, for multilayer fractured wells.

Comparative Study of Flowback Analysis Using Polymer ...
Comparative Study of Flowback Analysis Using Polymer ...

Fluid flowback can be either of a fracture-tip or near-wellbore type. If flowback is of the near-wellbore type, it indicates extensive near-wellbore leakoff due to a highly permeable zone around the wellbore. This causes the entire pad fluid segment to leakoff near the wellbore and, …

Polymer-Free Fracturing Fluid Successful in Tight Gas ...
Polymer-Free Fracturing Fluid Successful in Tight Gas ...

Conventional polymer-base fluids used in CO2 foam ,fracturing, operations do not clean up well in tight ,gas, sands. If sufficient ,fluid, is not recovered, the polymer left behind shortens the effective fracture half-length. Flowing the well back up tubing increases the ,flowback, velocity, which aids cleanup by increasing the liquid-carrying capacity.

Geochemical Characteristics of Gas and Flowback Water in ...
Geochemical Characteristics of Gas and Flowback Water in ...

A total of 34 samples were collected during a 66–days period after the hydraulic ,fracturing, of well XJC 1. The ,fracturing fluid, for the Karamay Formation was also collected. The ,flowback fluid, samples from the Lucaogou Formation in well XJC 1 were collected from day 14 to day 20 after ,fracturing,, and a total of five samples were collected.

Optimization of Fracturing Fluid Flowback Based on Fluid ...
Optimization of Fracturing Fluid Flowback Based on Fluid ...

The purpose of frac ,fluid flowback, is to outflow the ,fracturing fluid, and prevent the proppant backflow, which determines the effect of ,fracturing fluid flowback,. The ,fracturing, treatment in ,field, lacks relevant theoretical models for prediction. Therefore, this work focuses on establishing the ,flowback, model of hydraulic ,fracturing, for multilayer fractured wells.

Research and Application of an Environmental-Friendly Low ...
Research and Application of an Environmental-Friendly Low ...

Among them, the main ion composition of simulated formation water and fracturing backflow liquid is shown in Table 1 and Table 2. The core used for indoor evaluation of core damage is the core of a gas field in Changqing, which is a brown-gray gas-bearing medium sandstone. The main parameters of the core are shown in Table 3. 2.2.

Hydraulic Fracturing and Flowback Hazards Other than ...
Hydraulic Fracturing and Flowback Hazards Other than ...

Hydraulic fracturing involves pumping large volumes of fluid blended with proppant and chemicals at pressures necessary to fracture a hydrocarbon- containing formation. Once the fractures are created, proppants are placed within the fractures to hold them open and allow for the release and flowback of fluids and hydrocarbons.

Review of Treatment Methods for Fracturing Flowback Fluid ...
Review of Treatment Methods for Fracturing Flowback Fluid ...

Through analyzing and comparing the treatment of ,fracturing fluid flowback, at home and abroad, it can be found that ,fluid, derived organic waste water can be handled by micro electrolysis economically and efficiently. But there are also some shortages of traditional micro electrolysis. So this paper discusses a new micro-electrolysis technology, namely cavitation-impinging stream electrolysis ...

Recovery and treatment of fracturing flowback fluids in ...
Recovery and treatment of fracturing flowback fluids in ...

Based on the characteristics of ,gas, testing after ,fracturing, in this ,gas field,, a ,fracturing flowback fluid, recovery and treatment method suitable for the Sulige Gasfield has been developed with the landform features of this area taken into account.

Recovery and treatment of fracturing flowback fluids in ...
Recovery and treatment of fracturing flowback fluids in ...

Centralized and group well deployment and factory-like ,fracturing, techniques are adopted for low-permeability tight sandstone ,gas, reservoirs in the Sulige Gasfield,Ordos Basin,so as to realize its efficient and economic development.However,environmental protection is faced with grim situations because ,fluid, delivery rises abruptly on site in a short time due to centralized ,fracturing, of the ...

Recovery and treatment of fracturing flowback fluids in ...
Recovery and treatment of fracturing flowback fluids in ...

Centralized and group well deployment and factory-like ,fracturing, techniques are adopted for low-permeability tight sandstone ,gas, reservoirs in the Sulige Gasfield,Ordos Basin,so as to realize its efficient and economic development.However,environmental protection is faced with grim situations because ,fluid, delivery rises abruptly on site in a short time due to centralized ,fracturing, of the ...

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