US5552377A - Mud sweep and spacer composition
A composition, especially suitable for use as a mud sweep and a spacer. The composition includes a petroleum-based hydrocarbon, a biopolymer, a thickening agent, a surfactant and potassium chloride. Other optional ingredients in embodiments of the present invention include a lower alkanol, sodium salts and aluminum stearate.
Spacer fluids providing an effective buffer between drilling fluids and cement slurries during well completion. The spacer fluids comprise a sulfonated styrene copolymer dispersant and one or more additional components such as surfactants, viscosifiers and weighting materials to form a rheologically compatible fluid between the drilling fluid and the cement slurry.
EP0171999A2 - Fluid spacer composition for use in well
A fluid spacer composition for use in well cementing comprises an aqueous fluid and an admixture of nonylphenols. Optionally, but preferably, there will also be at least one member selected from the group of a sulfonated linear C 8 to C 18 straight chain alcohol ethoxylated with an average of from.about 2 to about 20 moles of ethylene oxide,a low molecular weight aliphatic glycol ether
The present invention relates to an aqueous composition and method for substantially preventing contact between non-compatible hydrocarbonaceous and aqueous fluids employing an aqueous spacer composition. The composition comprises an aqueous fluid, an admixture of nonylphenols and, preferably, at least one member selected from the group of a sulfonated linear C 8 to C 18 straight chain alcohol
US7666384B2 - Stable chlorine dioxide tablet
US7666384B2 US12/015,962 US1596208A US7666384B2 US 7666384 B2 US7666384 B2 US 7666384B2 US 1596208 A US1596208 A US 1596208A US 7666384 B2 US7666384 B2 US 7666384B2 Authority US United States Prior art keywords composition chlorine dioxide bromide metal chlorite Prior art date 2008-01-17 Legal status (The legal status is an assumption and is not a legal conclusion.
Organic tracers are employed to monitor the movement of subterranean fluids. These organic tracers are (a) stable at elevated temperatures, (b) capable of being detected at low concentrations, and/or (c) not adversely affected by the make-up of at least one subterranean formation. In addition, a plurality of these tracers can be measured by a single analytical technique.
US4986354A - Composition and placement
Oil field chemicals are incorporated in microcapsules of the condensation product of hydroxyacetic acid or the co-condensation product of hydroxyacetic acid and other compounds containing hydroxy-, carboxylic acid-, or hydroxycarboxylic acid moieties. The microcapsules are then introduced into an oil well bore and/or subterranean oil formation where the microcapsules dissolve over a period of
At $6 per pound, this is an additional $120 per acre, which is a small fraction (less than 5 percent) of the usual hydromulching operation costs. The additional time for mixing will also need to be considered, however. Do not apply PAM to stream
Polyacrylamide
Polyacrylamide (abbreviated as PAM) is a polymer with the formula (-CH2CHCONH2-). 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
Supply Anionic Polyacrylamide PAM Suppliers price in soild-liquid speparation process which including settlement,clarification,concentration and sludge dewatering process. Anionic Polyacrylamide. china Anionic Polyacrylamide production uses Suppliers price 25kg woven bag lined with plastic or paper plastic composite bag.
Cationic polyacrylamide(PAM) for water treatment
Cationic polyacrylamide, is a white powder water -soluble polymer which is copolymerized by cationic monomer and acrylamide. It has the function of decolorizing, adsorbing, turbid eliminating and bonding. It generate a good flocculation and can decrease the resistance between liquids. It is most often used to increase the viscosity of water (creating a thicker solution) or to encourage flocculation of particles present in water and allow rapid settlement of finely suspended solid.
Anionic polyacrylamide is mainly used in mineral processing, metallurgy, coal, food and other industries of solid-liquid separation and wastewater treatment, wastewater, steel, textile, paper industry, oil industry for drilling and extraction of three times; papermaking retention agent and reinforcing agent etc.
- How effective is SNF in reducing polyacrylamide production?
- As a result, SNF now accounts for almost half of all global polyacrylamide production, which underscores the effectiveness of this innovation and investment policy.
- Who makes acrylamide based flocculants?
- SNF is the world’s leading manufacturer of water-soluble polymers and acrylamide monomer, which is the primary ingredient for polyacrylamide-based flocculants.
- Can polyacrylamide gel electrophoresis standardize venom protein analysis?
- This comparative study evaluates various protein quantitation assays, including those using polyacrylamide gel electrophoresis, to standardize venom protein analysis from different Hymenoptera species, aiding in venom research and potential therapeutic applications (Wanandy et al., 2025).
