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Electrolytic treatment of acid wastewater containing chromium

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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Electrolytic treatment of acid wastewater containing chromium
Final Technical Report
Final Technical Report

Control (UIC) wells. Due to the lack of such wells in Pennsylvania, ,flowback, and produced waters are generally reused for hydraulic ,fracturing,. Because only 10-40% of the hydraulic ,fracturing fluid, returns to the surface during the ,flowback, period, it is necessary to supplement this impaired water to be able to fracture the nextwell.

HYDRAULIC FRACTURING AND THE MANAGEMENT DISPOSAL …
HYDRAULIC FRACTURING AND THE MANAGEMENT DISPOSAL …

Frac ,flowback, is the term used to describe injected water that returns to the surface during the first few weeks of production. Produced water refers to the water naturally present in the formation brought to the surface throughout the production process (Veil 2010). Both frac ,flowback, and produced waters generally contain high levels of

Remediation of Hydraulic Fracturing Flowback Fluids by ...
Remediation of Hydraulic Fracturing Flowback Fluids by ...

UPP-S3 (no chemical additions) ,flowback fluid, was first vigorously shaken to re-suspend precipitate and make a homogeneous mixture for sampling. 200mL of the ,fluid, was added into each of nine 250mL bottles. Additions of either H 3 PO 4 or H 2 SO 4 were to induce the formation of sulfate or APS (aluminum phosphate sulfate) mineral phases AB 3 (XO 4) 2 (OH) 6

CROSSLINKED FLUID TREATMENT AND METHODS FOR FRACTURING …
CROSSLINKED FLUID TREATMENT AND METHODS FOR FRACTURING …

crosslinked ,fluid treatment, and methods for ,fracturing, underground formations based on ,flowback,, production water, seawater, fresh water, and mixtures of same. 3178900 - ep15887389a1 - epo application dec 16, 2015 - publication jun 14, 2017 fabio german borgogno. abstract.

Engineering criteria for fracture flowback procedures ...
Engineering criteria for fracture flowback procedures ...

This paper describes the laboratory and field development of thermoplastic film materials used to reduce proppant ,flowback, that can occur after ,fracturing, treatments. The paper provides a summary of ,flowback, mechanism theories and laboratory tests comparing ,flowback, tendency for various types of treating procedures and materials.

Proppant Flowback Control | SPE Annual Technical ...
Proppant Flowback Control | SPE Annual Technical ...

Attempts to solve proppant flowback have varied with the perception of the problem. One solution has been to overdisplace the fracturing treatment; that is, to displace the final proppant-laden stages with excess fluid and hope that the proppant is far enough from the wellbore to prevent flowback.

Remediation of Hydraulic Fracturing Flowback Fluids by ...
Remediation of Hydraulic Fracturing Flowback Fluids by ...

UPP-S3 (no chemical additions) ,flowback fluid, was first vigorously shaken to re-suspend precipitate and make a homogeneous mixture for sampling. 200mL of the ,fluid, was added into each of nine 250mL bottles. Additions of either H 3 PO 4 or H 2 SO 4 were to induce the formation of sulfate or APS (aluminum phosphate sulfate) mineral phases AB 3 (XO 4) 2 (OH) 6

Flow-Back Hydraulic Fracture Treatment Water Composition ...
Flow-Back Hydraulic Fracture Treatment Water Composition ...

8/5/2017, · The ,flowback, water salinity from well Y shows a high starting value that matches the late samples of well X and decreased before starting a normal increase with time . Sudden fresh water from well Y . a b . Interference from nearby hydraulic ,fracturing, . Cl . 12.5 days . Number of days . Well X Well Y . Saline water from well X in first water ...

Recovered Water Management Study in Shale Wells
Recovered Water Management Study in Shale Wells

within the first months after hydraulic ,fracturing,. ,Flowback, water is primarily composed ,of fracturing, fluids and sand (or other material used as proppant in the process). It may also contain some water from the formation. • ,Fracturing fluid,: ,fluid, used to stimulate the target formation during hydraulic ,fracturing,.

Engineering criteria for fracture flowback procedures ...
Engineering criteria for fracture flowback procedures ...

This paper describes the laboratory and field development of thermoplastic film materials used to reduce proppant ,flowback, that can occur after ,fracturing, treatments. The paper provides a summary of ,flowback, mechanism theories and laboratory tests comparing ,flowback, tendency for various types of treating procedures and materials.

Treatment site confirmed for Cuadrilla fracking flowback fluid
Treatment site confirmed for Cuadrilla fracking flowback fluid

The EA letter said there were five facilities in England with permits that would allow for the treatment of flowback fluid from hydraulic fracturing. Other sites include: Northumbrian Water’s Bran Sands in Middlesbrough; Castle Environmental at Longport in Stoke-on-Trent; and FCC Environment at …

SB 4 INTERIM WELL STIMULATION TREATMENT REGULATIONS FINAL …
SB 4 INTERIM WELL STIMULATION TREATMENT REGULATIONS FINAL …

treatment,. The ,flowback fluid, may include materials of any phase. (h) “Hydraulic ,fracturing,” means a well stimulation ,treatment, that, in whole or in part, includes the pressurized injection of hydraulic ,fracturing fluid, or fluids into an underground geologic formation in order to fracture or with intent to fracture the

HYDRAULIC FRACTURING AND THE MANAGEMENT DISPOSAL …
HYDRAULIC FRACTURING AND THE MANAGEMENT DISPOSAL …

Frac ,flowback, is the term used to describe injected water that returns to the surface during the first few weeks of production. Produced water refers to the water naturally present in the formation brought to the surface throughout the production process (Veil 2010). Both frac ,flowback, and produced waters generally contain high levels of

SB 4 INTERIM WELL STIMULATION TREATMENT REGULATIONS FINAL …
SB 4 INTERIM WELL STIMULATION TREATMENT REGULATIONS FINAL …

treatment,. The ,flowback fluid, may include materials of any phase. (h) “Hydraulic ,fracturing,” means a well stimulation ,treatment, that, in whole or in part, includes the pressurized injection of hydraulic ,fracturing fluid, or fluids into an underground geologic formation in order to fracture or with intent to fracture the

Treatment site confirmed for Cuadrilla fracking flowback fluid
Treatment site confirmed for Cuadrilla fracking flowback fluid

24/5/2019, · The EA letter said there were five facilities in England with permits that would allow for the treatment of flowback fluid from hydraulic fracturing. Other sites include: Northumbrian Water’s Bran Sands in Middlesbrough; Castle Environmental at Longport in Stoke-on-Trent; and FCC Environment at Ecclesfield in Sheffield.

The First Set of O&G Fracking Flowback Water Treatment ...
The First Set of O&G Fracking Flowback Water Treatment ...

During treatment, by utilizing conventional flocculation, sedimentation & fine processing technology and Haimo Technoogies' proprietary pre-treatment & final-treatment, resulting in 15 minutes of fast sedimentation and 5 minutes of fine processing, and the treated water's quality meets the standard to mix for new batch of fracturing fluid. 1.flowbacks pre-treatment trailer :

2.7 Avery Environmental Case Fracking final
2.7 Avery Environmental Case Fracking final

• When pressure in the well is released, hydraulic ,fracturing fluid,, formation water, and natural gas begin to ,flow back, up the well. This combination of fluids, containing hydraulic ,fracturing, chemical additives and naturally occurring substances, must be stored on-site—typically in tanks or pits—before ,treatment,, recycling, or disposal.

Study on Fluid-Rock Interaction and Reuse of Flowback ...
Study on Fluid-Rock Interaction and Reuse of Flowback ...

Therefore, it is imperative to understand the potential interactions between fracturing fluid and reservoir rock, and then find solutions to reuse the flowback water for subsequent fracturing. In this study, once flowback fluid was directly collected from the field, its chemical compositions were analyzed; then, filtering, decoloring, and chelating methods were chosen to effectively remove or shield the …

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