us20120111567a1 - formate salts for increased stability

US20120111567A1 - Formate salts for increased stability

US20120111567A1 US12/942,120 US94212010A US2012111567A1 US 20120111567 A1 US20120111567 A1 US 20120111567A1 US 94212010 A US94212010 A US 94212010A US 2012111567 A1 US2012111567 A1 US 2012111567A1 Authority US United States Prior art keywords fluid method acrylamide formate polyacrylamide Prior art date 2010-11-09 Legal status (The legal status is an assumption and is not a legal conclusion.

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gb2498895b - formate salts for increased stability

GB2498895B - Formate salts for increased stability

increased stability formate salts polyacrylamide fluids polyacrylamide fluids Prior art date 2010-11-09 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number GB1308586.5A

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wo2012063199a8 - formate salts for increased stability

WO2012063199A8 - Formate salts for increased stability

increased stability formate salts polyacrylamide Prior art date 2010-11-09 Application number PCT/IB2011/054977 Other languages French (fr) Other versions WO2012063199A3 (en WO2012063199A2 (en Inventor Lijun Lin Alhad Phatak Leiming Li Carlos Abad Original Assignee Schlumberger Canada Limited Services Petroliers Schlumberger Schlumberger

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wo2012063199a3 - formate salts for increased stability

WO2012063199A3 - Formate salts for increased stability

increased stability formate salts polyacrylamide Prior art date 2010-11-09 Application number PCT/IB2011/054977 Other languages French (fr) Other versions WO2012063199A8 (en WO2012063199A2 (en Inventor Carlos Abad Leiming Li Lijun Lin Alhad Phatak Original Assignee Prad Research And Development Limited Schlumberger Canada Limited Schlumberger

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formate salts for increased stability of polyacrylamide

FORMATE SALTS FOR INCREASED STABILITY OF POLYACRYLAMIDE

FORMATE SALTS FOR INCREASED STABILITY OF POLYACRYLAMIDE FLUIDS . United States Patent Application 20120111567 . Kind Code: including an acrylamide copolymer comprising polyacrylamide, a formate salt comprising potassium, and a crosslinker comprising zirconium. Additionally, methods and apparatus for using a fluid within in a subterranean

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directed evolution of formate dehydrogenase from candida

Directed evolution of formate dehydrogenase from Candida

Directed evolution of formate dehydrogenase from Candida boidinii for improved stability during entrapment in polyacrylamide Marion B. Ansorge-Schumacher1, Heike Slusarczyk2, Julia Schu¨mers1 and Dennis Hirtz1 1 Department of Biotechnology, RWTH Aachen University, Germany

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theoretical studies of hydrolysis and stability

Theoretical studies of hydrolysis and stability

Theoretical studies of hydrolysis and stability of polyacrylamide polymers Article in Polymer Degradation and Stability 121:69-77 · November 2015 with 112 Reads How we measure 'reads'

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stabilizing biopolymers in water- based drilling fluids

Stabilizing biopolymers in water- based drilling fluids

formate salts, and polyethylene glycol. To stabilise water-based fluids at temperatures above 150oC, Howard et al. [9] screened numerous additives to formulate water-based drilling fluids. The best mud formulation that increased the temperature stability of xanthan in potassium

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bulk chemicals market consulting and research reports

Bulk Chemicals Market Consulting and Research Reports

Polyacrylamide Market Size, Share & Trends Analysis Report By Product (Anionic, Cationic, Non-ionic), By Application (Water Treatment, Oil & Gas, Paper Making), By Region, And Segment Forecasts, 2019 - 2025. The global polyacrylamide market size was valued at USD 4.5 billion in 2018 and is projected to expand at a CAGR of 6.2% from 2019 - 2025.

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baroid - halliburton

Baroid - Halliburton

Baroid Let us help you take the lead. At Baroid, we are at the forefront of the drilling and completion fluids industry, and our mission is to develop and deploy innovative fluid technologies that can ultimately help you produce more for less. To ensure maximum fluid performance, we engineer state-of-the-art separation solutions that will

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ca2744620c - well servicing fluid - google patents

CA2744620C - Well servicing fluid - Google Patents

A well servicing fluid formulated with ingredients comprising a viscosifying polymer that is a crosslinked copolymer of an ethylenically unsaturated dicarboxylic anhydride and an alkyl vinyl ether, or the di-acid thereof; a pH adjuster capable of maintaining a pH of 5.5 or greater; and a solvent. Methods of treating a well formation with the wellbore servicing fluid and methods of making the

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atomic spectrometry update. elemental speciation - journal

Atomic spectrometry update. Elemental speciation - Journal

This is the third Atomic Spectrometry Update (ASU) to focus specifically on developments in elemental speciation. The International Union for Pure and Applied Chemistry (IUPAC) have evaluated speciation and provided a definition as follows: “speciation analysis is the analytical activity of identifying and / or measuring the quantities of one or more individual chemical species in a sample

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search: acid additives | spe

Search: Acid additives | SPE

Many acid additives are available, but those that are usually necessary are corrosion inhibitors, surfactants, and iron control agents. Petrowiki. 0.4 mg/l for formate, and 1 mg/l for citrate, based on a signal to noise ratio of 3 to 1. The presence of salts anddiversion can be achieved.

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volume 4 - anatole klyosov

Volume 4 - Anatole Klyosov

HFCS manufacturers produced an estimated 1.2 million tons of the product in 1977 and 3.7 million tons in 1980. Production increased to about 6.7 million tons in 1984. It is also noteworthy that the U.S. fructose market in 1982 amounted to about $11 billion a year and was marked by high price stability (McGraw Hill's Biotechnology Newswatch, 1982b).

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evaluation of specific ultraviolet absorbance as an

Evaluation of Specific Ultraviolet Absorbance as an

Specific UV absorbance (SUVA) is defined as the UV absorbance of a water sample at a given wavelength normalized for dissolved organic carbon (DOC) concentration. Our data indicate that SUVA, determined at 254 nm, is strongly correlated with percent aromaticity as determined by 13C NMR for 13 organic matter isolates obtained from a variety of aquatic environments.

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shijiazhuang kunmai chemical technology co., ltd

Shijiazhuang Kunmai Chemical Technology Co., Ltd

The maximum absorption spectrum wavelength: 374nm The maximum fluorescence emission wavelength: 434nm application: Fluorescent Brightener OB-1 Fluorescent whitening agent is effective for a polyester fiber, and is widely used in ABS, PS, HIPS, PA (nylon), PC (polycarbonate), PP, EVA and hard PVC and other plastics, has excellent whitening effect, excellent thermal stability, minimal amount of

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1,2-dichloroethane | clch2ch2cl - pubchem

1,2-Dichloroethane | ClCH2CH2Cl - PubChem

IDENTIFICATION: 1,2-Dichloroethane is a clear, colorless, oily liquid. It has a pleasant odor and sweet taste. It is soluble in water. USE: 1,2-Dichloroethane is an important commercial chemical. It is used as a solvent, chemical intermediate (mostly to produce vinyl chloride) and a lead scavenger (in leaded gasoline). It was formerly used as a

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bulk chemicals market consulting and research reports

Bulk Chemicals Market Consulting and Research Reports

Polyacrylamide Market Size, Share & Trends Analysis Report By Product (Anionic, Cationic, Non-ionic), By Application (Water Treatment, Oil & Gas, Paper Making), By Region, And Segment Forecasts, 2019 - 2025. The global polyacrylamide market size was valued at USD 4.5 billion in 2018 and is projected to expand at a CAGR of 6.2% from 2019 - 2025.

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evaluation of specific ultraviolet absorbance as an

Evaluation of Specific Ultraviolet Absorbance as an

Specific UV absorbance (SUVA) is defined as the UV absorbance of a water sample at a given wavelength normalized for dissolved organic carbon (DOC) concentration. Our data indicate that SUVA, determined at 254 nm, is strongly correlated with percent aromaticity as determined by 13C NMR for 13 organic matter isolates obtained from a variety of aquatic environments.

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chemosphere (v.144, #c) | www.chemweb.com

Chemosphere (v.144, #C) | www.chemweb.com

The degradation efficiency increased for both compounds with the increase in the TiO 2 concentration from 0.25 to 2.00 g L −1, and then remained constant. The estimated k-values were from 0.36 h −1 to 0.64 h −1 for IVE and from 0.29 h −1 to 0.47 h −1 for PZQ, respectively.

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infrared spectra and characteristic frequencies

Infrared Spectra and Characteristic Frequencies

Ozonolysis of Trimethylamine Exchanged with Typical Ammonium Salts in the Particle Phase. Environmental Science & Technology 2016, 50 (20) , 11076-11084. DOI: 10.1021/acs.est.6b04375. Hongtao Lu, Zhiliang Zhu, Hua Zhang, Jianyao Zhu, Yanling Qiu, Linyan Zhu, and Stephan Küppers .

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the bibliography of aeolian research

The Bibliography of Aeolian Research

Gata, G., Teaci, D., Craciun, C., Popescu, I. and Schramek, C. 1972. Contributii la caracterizarea mineralogica a unor loessuri si soluri formate pe loess din Romania (Contributions to the mineralogic characterization of some Romanian loess and loess-derived soils).

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1. executive summary: - homepage | food standards agency

1. Executive Summary: - Homepage | Food Standards Agency

The separation was achieved on a Shim-Pack XR-ODS II column (2.0 × 100 mm, 2.2 μm) with acetonitrile and aqueous solution (12 mmol/L ammonium formate, 0.01% acetic acid) as mobile phase at a flow rate of 0.4 mL/min with a gradient elution. The column temperature was maintained at 40°C and the run time was within 18 min.

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chemicals and materials market reports

Chemicals and Materials Market Reports

Chemicals and Materials Market Reports Bromine Market Research Report: By Derivative (Hydrogen Bromide, Bromide Salts, Organobromide), Application (Flame Retardants, Clear Brine Fluids, Pharmaceuticals, Water Treatment) - Global Industry Analysis and Growth Forecast to 2030

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infrared spectra and characteristic frequencies

Infrared Spectra and Characteristic Frequencies

Ozonolysis of Trimethylamine Exchanged with Typical Ammonium Salts in the Particle Phase. Environmental Science & Technology 2016, 50 (20) , 11076-11084. DOI: 10.1021/acs.est.6b04375. Hongtao Lu, Zhiliang Zhu, Hua Zhang, Jianyao Zhu, Yanling Qiu, Linyan Zhu, and Stephan Küppers .

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search results - alfa aesar

Search Results - Alfa Aesar

Alfa Aesar is a leading manufacturer and supplier of research chemicals, pure metals and materials for a wide span of applications.

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references - mass and spec - hort640 - metabolic plant

References - mass and spec - HORT640 - Metabolic Plant

Increased risk of vitamin B6 deficiency and seizures in hyperprolinemia type II. J. Biol. Chem. 276: 15107-15116 (2001). Farre EM, Tiessen A, Roessner U, Geigenberger P, Trethewey RN, Willmitzer L. Analysis of the compartmentation of glycolytic intermediates, nucleotides, sugars, organic acids, amino acids, and sugar alcohols in potato tubers

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chemicals and materials market reports

Chemicals and Materials Market Reports

Chemicals and Materials Market Reports Bromine Market Research Report: By Derivative (Hydrogen Bromide, Bromide Salts, Organobromide), Application (Flame Retardants, Clear Brine Fluids, Pharmaceuticals, Water Treatment) - Global Industry Analysis and Growth Forecast to 2030

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9005-64-5 | mfcd00165986 | sorbitan, monododecanoate, poly

9005-64-5 | MFCD00165986 | Sorbitan, monododecanoate, poly

Sorbitan, monododecanoate, poly(oxy-1,2-ethanediyl) derivs.. CAS Number: 9005-64-5. Catalog Number: AA00IKCM. MDL Number: MFCD00165986. AA Blocks.

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petroleum engineer's guide to oil field chemicals

Petroleum Engineer's Guide to Oil Field Chemicals

Compositions with Improved Thermal Stability To avoid the problems associated with viscosity reduction in polymer-based aqueous fluids, formates, such as potassium formate and sodium formate, are commonly added to enhance their thermal stability, but this is very expensive, and thermal stabilities of polymer-based aqueous fluids can be improved

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1. executive summary: - homepage | food standards agency

1. Executive Summary: - Homepage | Food Standards Agency

The separation was achieved on a Shim-Pack XR-ODS II column (2.0 × 100 mm, 2.2 μm) with acetonitrile and aqueous solution (12 mmol/L ammonium formate, 0.01% acetic acid) as mobile phase at a flow rate of 0.4 mL/min with a gradient elution. The column temperature was maintained at 40°C and the run time was within 18 min.

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article in press - mafiadoc.com

article in press - MAFIADOC.COM

The rationale behind the idea is that proteins are surface active molecules and ultrasonic agitation increased its surface activity with foam stability and bubble uniformity. Gelatin and CMC biopolymers were chosen as base biomaterials while nano-hydroxyapatite was added as an inorganic component of the biomaterial.

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