viscosifier anionic polyacrylamide viscosifier anionic
viscosifier anionic polyacrylamide viscosifier anionic
viscosifier anionic polyacrylamide viscosifier anionic
viscosifier anionic polyacrylamide viscosifier anionic
viscosifier anionic polyacrylamide viscosifier anionic
a novel crosslinked poly(amps-co-va-co-dvb) viscosifier for high temperature water-based drilling muds | journal of polymer research - home

A novel crosslinked poly(AMPS-co-VA-co-DVB) viscosifier for high temperature water-based drilling muds | Journal of Polymer Research - Home

The novel polyviscosifier (PI) mainly consisted of 2-acrylamido-2-methy-propane sulfonic acid (AMPS), 4-aminostyrene (VA), and a crosslinker divinylbenzene (DVB), synthesized via a free-radical copolymerization method.

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oilfield chemicals - blue ocean oil

Oilfield Chemicals - Blue Ocean Oil

ALCOMER? types includes a wide variety of product forms consisting: solid grades in both bead and powder form, liquid grades in dispersions, inverse emulsions and solution forms. Drilling fluids additives Alcomer? types ¨C product forms Solid form

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polyacrylamide degradation and its implications in environmental systems | npj clean water - nature

Polyacrylamide degradation and its implications in environmental systems | npj Clean Water - Nature

Yi, X. S., et al. Factorial design applied to flux decline of anionic polyacrylamide removal from water by modified polyvinylidene fluoride ultrafiltration membranes. Desalination 274 , 7¨C12 (2011).

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treatment of produced water from polymer flooding in oil production by ceramic membranes

Treatment of produced water from polymer flooding in oil production by ceramic membranes

Liu et al. (2018) observed an even higher impact on the flux when a solution of 400 mg/L of an anionic polyacrylamide was used for the permeation with a similar PVDF membrane, applying the same filtration mode. ...

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ctab grafted pam gel and its application in drilling fluid

CTAB grafted PAM gel and its application in drilling fluid

Cetyltrimethyl ammonium bromide (CTAB) grafted Polyacrylamide (PAM) gel has been used to control fluid loss for high performance drilling fluid with increased thermal stability. PAM complex was prepared by treating PAM with CTAB by green chemistry techniques. Characterization of PAM complex was carried out using FTIR, scanning electron ...

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anionic polyacrylamide

ANIONIC POLYACRYLAMIDE

Anionic Polyacrylamide 9003-05-8 Not a PBT No Yes Yes No No No 1 1 1 Footnotes: 1 - PBT Assessment based on PBT Framework. 2 - Acute and chronic aquatic toxicity evaluated consistent with assessment criteria (see Framework). 3 ¨C Tier ...

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polyampholytes - high temperature viscosifiers for high ionic strength drilling fluids - google patents

Polyampholytes - high temperature viscosifiers for high ionic strength drilling fluids - Google Patents

the present invention describes a new class of viscosification agents for water-based drilling muds which are used during operation of gas and oil wells, wherein these viscosification agents are intermolecular complexes, i.e., polyampholytes containing primarily N-vinyl-2-pyrrolidone with low to moderate concentrations of anionic and cationic groups.

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polyacrylamide - wikipedia

Polyacrylamide - Wikipedia

Polyacrylamide (abbreviated as PAM or pAAM) is a polymer with the formula (-CH 2 CHCONH 2 -). It has a linear-chain structure. PAM is highly water-absorbent, forming a soft gel when hydrated. In 2008, an estimated 750,000,000 kg were produced, mainly for water treatment and the paper and mineral industries.

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2018 drilling fluids guide | underground construction

2018 Drilling Fluids Guide | Underground Construction

Suspends cuttings and maintains borehole integrity with very low water loss and strong gel strength. NSF/ANSI Standard 60 certified. SUPER GEL-X: A 200-bbl-yield, bentonite drilling fluid for maximum viscosity. Multi-purpose drilling gel provides strong wall cake and formation control for all drilling types.

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water-based polymer drilling fluid and method of use

Water-Based Polymer Drilling Fluid and Method of Use

The non-ionic polyacrylamide may be NF 201 or NE 823 or equivalent polymers from other manufacturers; and the anionic polyacrylamide may be AF 203 , AF 204 , AF 204RD , AF 207 , AF 207RD , AF 247RD , AF 250 , AF 211 , AF 215 , AF

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