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Underground 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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Underground acid wastewater
The influencing factors of fracturing effects in low ...
The influencing factors of fracturing effects in low ...

Aimed at the ,influencing factors, of gas wells ,fracturing, effects in Yanchang gas field,according to geology,,fracturing, and well test data in the Shan 2,through qualitative and grey correlation analysis method,this paper analyzed the ,influencing, degree on open flow capacity of 25 fractured wells in Shan 2. The result shows that the major ,influencing factors, on the ,fracturing, effects are ...

Application of Surfactants in Hydraulic Fracturing for ...
Application of Surfactants in Hydraulic Fracturing for ...

Since its discovery, oil and gas has remained the world’s major energy source despite the recent contribution from renewable energy []. Hydraulic ,fracturing, is normally applied to stimulate low/ultralow permeability reservoirs in order to obtain an economical hydrocarbon production rate [].However, 50-95% of the injected ,fluid, is typically reported to remain in the formation due to the ...

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

At the end ,of fracturing,, the fracture ,fluid, was broken by a breaker to reduce molecular weight and ,fluid, viscosity. Therefore, the ,fluid, that remains underground may mostly be the gel breaking liquid. Thus, it is important to investigate the influence of gel breaking liquid on the stability of emulsion.

Influence factors of unpropped fracture conductivity of ...
Influence factors of unpropped fracture conductivity of ...

This numerical model consists of three basic models, namely, the numerical reconstruction model of fracture morphology, fracture deformation model under closed stress, and ,fluid, flow model. The numerical model can be used to analyze the ,influencing factors, of the unpropped fracture conductivity of shale quantitatively.

Intensive study on gelled LPG as fracturing fluid is ...
Intensive study on gelled LPG as fracturing fluid is ...

Intensive study on gelled LPG as ,fracturing fluid, is carried out to certify the from ACCOUNTING 309 at Xiamen University Malaysia

Geochemical characteristics of the elements in hydraulic ...
Geochemical characteristics of the elements in hydraulic ...

Natural Gas Geoscience ›› 2021, Vol. 32 ›› Issue (4): 492-509. doi: 10.11764/j.issn.1672-1926.2020.12.015. Previous Articles Next Articles Geochemical characteristics of the elements in hydraulic ,fracturing flowback, water from the Weiyuan shale gas development area in …

Fracture penetration and proppant transport in gas- and ...
Fracture penetration and proppant transport in gas- and ...

in a rapid ,flowback, after treatment (Lillies and King, 1982). ... dictions with more realistic descriptions of key ,influencing factors, - accommodating true 3D fracture geometry, ... distribution with transport of a rheological mixture ,of fracturing fluid, ...

A Fracturing Fluid Instant Cellulose Without Dregs ...
A Fracturing Fluid Instant Cellulose Without Dregs ...

Reduce the damage made by ,fracturing fluid, to reservoir and fracture capacity support is one of the important technology by improving low permeability oil and gas reservoir. The residue is one of the key ,factors influencing, the ,fracturing, effect, therefore need to study ,fracturing fluid, without dregs.

Study on fracturing flowback fluid treatment technology ...
Study on fracturing flowback fluid treatment technology ...

1/2/2018, · The results shown that the viscosity of the fracturing ,flowback fluid, before ,treatment, was 16.75mPa·s, and when the pH was adjusted to 3.5, with Cerium(III) sulfate and ferrous sulfate as catalyst and the dosage were 60mg/L and 120 mg/L respectively, and hydrogen peroxide dosage was 0.5%, the viscosity of fracturing folwback ,fluid, was reduced from 16.75mPa·s to 1.97mPa·s After the oxidation ,treatment,…

Environmental impact of hydraulic fracturing in the United ...
Environmental impact of hydraulic fracturing in the United ...

Flowback, is the portion of the injected ,fracturing fluid, that flows back to the surface, along with oil, gas, and brine, when the well is produced. An estimated 90% of ,flowback, in the United States is disposed of into deep EPA-licensed Class II disposal wells , with the remaining less than 10% reused, evaporated, used for irrigation, or discharged to surface streams under an NPDES permit.

Distinguished Lecturer Slides and Graphics
Distinguished Lecturer Slides and Graphics

Many ,factors, lead to this state of affair; technically, a fundamental difficulty is that reservoir heterogeneity at multiple scales may have strong effect on ,fluid, flows. This lecture presents an analysis of the challenge and possible resolutions.

Evaluation of shale gas well fracturing performance based ...
Evaluation of shale gas well fracturing performance based ...

Results show that the ,flowback, data collected in the blowout stage cannot be neglected, otherwise the effective fracture volume is relatively smaller. The proposed method provides the technical support for the evaluation ,of fracturing, performance of shale gas wells with the use of ,flowback, data.

(PDF) Hydraulic fracturing flow-back fluid treatment by ...
(PDF) Hydraulic fracturing flow-back fluid treatment by ...

Hydraulic fracturing ,flow-back fluid treatment, by ZVI/H2O2 process. January 2018; Desalination and Water ,Treatment, 129:177-184; DOI: 10.5004/dwt.2018.23086

The Pennsylvania State University
The Pennsylvania State University

understanding of the relationship between injected fracture fluids and ,flowback, contaminant origination within the shale formation will be a challenge to attain. However ... ,influencing, their effective ,fracturing, concentrations and mobility in ,flowback, fluids. ... 3.3 Synthetic Hydraulic ,Fracturing Fluid, ...

A Fracturing Fluid Instant Cellulose Without Dregs ...
A Fracturing Fluid Instant Cellulose Without Dregs ...

The residue is one of the key ,factors influencing, the ,fracturing, effect, therefore need to study ,fracturing fluid, without dregs. Besides, depend on import of guar gum in 2012 led to the soaring cost ,of fracturing fluid, and unable to control the situation, looking for an alternative of guar gum to reduce cost has profound implications for the future development ,of fracturing fluid, technology.

Model of the Use and Production of Water in the Gulf of ...
Model of the Use and Production of Water in the Gulf of ...

Factors Influencing, Produced Water Composition . Several interacting ,factors, influence the chemical composition of produced water: 1. the composition of injected hydraulic ,fracturing, fluids, 2. the targeted geological formation and associated hydrocarbon products, 3. the stratigraphic environment, and 4. subsurface processes and residence time

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