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Existing forms of chromium in 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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Existing forms of chromium in acid wastewater
Hydraulic fracturing - Wikipedia
Hydraulic fracturing - Wikipedia

Some (but not all) injected fluid is recovered. This fluid is managed by several methods, including underground injection ,control,, treatment, discharge, recycling, and temporary storage in pits or containers. New ,technology, is continually developing to better handle ,waste water, and improve re-usability. Fracture monitoring

Environmental control technology in petroleum drilling and ...
Environmental control technology in petroleum drilling and ...

Environmental ,control technology, (ECT) is a process-integrated pollution prevention ,technology,. Within the broader scope of environmental ,technology, that includes assessment of environmental impact, remediation and prevention, ECT relates mostly to prevention and risk assessment.

The Crucial Importance of Water Handling in Oilfield ...
The Crucial Importance of Water Handling in Oilfield ...

According to IHS Markit, typical water cut values of produced liquids in the Permian range from 30% to 90%, while the Eagle Ford demonstrates produced water cuts closer to 30%. Water cuts in the Bakken and Three Forks formations are typically lower than the Permian (15-25%).

A Comprehensive Study on the Application of Reverse ...
A Comprehensive Study on the Application of Reverse ...

12/4/1976, · Produced water was treated using membrane ,technology, in the ,oilfield, in Wellington, Colorado, USA. This ,oilfield, started production in 1923 and operated until 2007, by which time its produced water exceeded 98.5% of total yield, and resulted in the increment of $1 per barrel of produced water in ,re-injection, and disposal costs.

4 DNAPLs: Technologies for Characterization Remediation ...
4 DNAPLs: Technologies for Characterization Remediation ...

To some extent, both ,low, pneumatic ,permeability, and limited volatility can be overcome by closely spacing wells, applying heat, or increasing the operating time of the system. These alternatives, of course, add to the cost of remediation. SVE systems in some cases can be effective for ,low,-,permeability, soils if the contaminants are highly volatile and have ,low, water solubility.

The size and performance of offshore produced water oil ...
The size and performance of offshore produced water oil ...

25/9/2014, · For “tight” or ,low permeability, reservoirs – normally associated with carbonate strata – removal of particles down to 3–5 μm in size may be necessary, demanding the use of filtration. It is of interest to appraise the different suspended matter/water separation technologies for PW treatment with specific reference to their incurred footprint with specific reference to offshore duties.

Water quality deterioration of treated oilfield injection ...
Water quality deterioration of treated oilfield injection ...

Reinjection, water quality is one of the important factors affecting the process and effect of water injection and ,oil, production (Ma et al. 2009; Sah et al. 2012). The average ,permeability, of water in subsurface matrices decreases when injecting with deteriorated water, and the ,permeability, is an important factor affecting the recovery of ,oil,.

4 DNAPLs: Technologies for Characterization Remediation ...
4 DNAPLs: Technologies for Characterization Remediation ...

To some extent, both ,low, pneumatic ,permeability, and limited volatility can be overcome by closely spacing wells, applying heat, or increasing the operating time of the system. These alternatives, of course, add to the cost of remediation. SVE systems in some cases can be effective for ,low,-,permeability, soils if the contaminants are highly volatile and have ,low, water solubility.

Environmental control technology in petroleum drilling and ...
Environmental control technology in petroleum drilling and ...

Environmental ,control technology, (ECT) is a process-integrated pollution prevention ,technology,. Within the broader scope of environmental ,technology, that includes assessment of environmental impact, remediation and prevention, ECT relates mostly to prevention and risk assessment.

The integrated feasibility analysis of water reuse ...
The integrated feasibility analysis of water reuse ...

Oil, and gas ,wastewater, treatment is considered as one of the leading pollution possibilities owing to including a broad variety mixture of salt and suspended solids in high concentrations, metals such as arsenic and barium, organics like hydrocarbon compounds, and …

Minerals | Free Full-Text | Deep Underground Injection of ...
Minerals | Free Full-Text | Deep Underground Injection of ...

During the 1990s, waste slurry injection became a proven method as an environmentally safe and economically viable solution for the disposal of cuttings and other associated waste from ,oil, and gas exploration and production activities (excess drilling fluids, rain water, oily/wash water, displacement pills, storage waste, produced sand, produced sand and gorp from heavy ,oil, “cold production”, slop, etc.) …

Environmental Control of Drilling Fluids and Produced ...
Environmental Control of Drilling Fluids and Produced ...

Abstract. The chapter presents development of Environmental ,Control Technology, (ECT) for ,oilfield, drilling and production processes using the ECT methods of source reduction, source separation, internal recycling, and internal reuse, introduced in Chap. 2. The methods have been used to reduce volume and toxicity of drilling fluid’s discharge from ...

CN109372482A - Oil recovery block produced-water ...
CN109372482A - Oil recovery block produced-water ...

The present invention provides a kind of ,oil, recovery block produced-water ,reinjection, methods, comprising: (1) carries out water analysis to recovered water, measure ion concentration;(2) floc test is carried out to recovered water, determines that flocculation treatment medicament oiling scheme, floc test mix the simulation water made arrangement after due consideration for more stratum ...

The size and performance of offshore produced water oil ...
The size and performance of offshore produced water oil ...

The ,Oil, Produced Water (OPW) is an effluent produced during the ,oil extraction, process. Owing to its complex composition and toxicity it must be treated by ,wastewater, treatment technologies.

Pilot study on hydrophilized PVDF membrane treating ...
Pilot study on hydrophilized PVDF membrane treating ...

1/11/2016, · To meet the oilfield reinjection water quality for low and ultra-low permeability reservoirs in China, a hydrophilized polyvinylidene fluoride (PVDF) membrane (approximate 110 m 2) manufactured by our laboratory was used for treating produced water from polymer flooding for reuse in Daqing Oilfield.

The Suspended Particles in Reinjection Sewage of Ansai Low ...
The Suspended Particles in Reinjection Sewage of Ansai Low ...

The Suspended Particles in ,Reinjection, Sewage of Ansai ,Low Permeability, Reservoir: LUO Litao 1,2,3, XIAO Hanmin 3, LIU Weidong 3, SUN Linghui 3, LI Jiye 4, GOU Feifei 1: 1. Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;

Peak oil - Wikipedia
Peak oil - Wikipedia

The peak of world ,oilfield, discoveries occurred in the 1960s at around 55 billion barrels (8.7 × 10 9 m 3 ) (Gb)/year. According to the Association for the Study of ,Peak Oil, and Gas (ASPO), the rate of discovery has been falling steadily since. Less than 10 Gb/yr of ,oil, …

Analysis of Wastewater Membrane Pollutants in Joint ...
Analysis of Wastewater Membrane Pollutants in Joint ...

Low permeability oilfields, require strict injection water quality and need fine, treatment,. Because of the difficulty of heavy oil wastewater treatment and the imperfection of front-end deoiling process, the quality of fine filtration effluent is not up to the standard, and the suspended solid content is …

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