Abstract:
Methods of treating hydrocarbon fluids to reduce the apparent viscosity of hydrocarbon fluids encountered in petroleum operations and reducing deposits within a well annulus or a pipeline are disclosed. The method comprises contacting such fluids with a hydrophobically modified polysaccharide to create water external emulsions. The disclosed hydrophobically modified polysaccharides have been demonstrated to reduce interfacial tension to below 65 mN/m and thereby improve the transportability of inherently viscous hydrocarbon fluids, such as heavy crude oils.
Abstract translation:公开了处理烃流体以降低在石油操作中遇到的烃流体的表观粘度并减少井环或管道内的沉积物的方法。 该方法包括使这种流体与疏水改性的多糖接触以产生水外部乳液。 已经证明所公开的疏水改性多糖将界面张力降低至65mN / m 3以下,从而提高固有粘性烃流体如重质原油的输送性能。
Abstract:
Provided herein are compositions useful as ink or coatings which contain novel dispersants that are capable of dispersing pigments which are traditionally difficult to disperse while maintaining acceptable levels of viscosity. Use of dispersants as taught herein enables the preparation of a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
Abstract:
Disclosed and claimed is a method of demulsifying a produced emulsion into oil and water by adding a surfactant to the produced emulsion. The surfactant comprises any combination of surfactants having a plurality of hydrophilic groups.
Abstract:
A method of foaming a fluid for recovering gas from a gas well and enhancing oil production from a gas-lifted oil well penetrating a subterranean oil-bearing formation is disclosed and claimed. The method includes introducing into the fluid a foam-forming amount of a composition comprising at least one compound selected from the following: X+ alkyl benzene sulfonate; X+ alkylnapthalene sulfonate; alkyldiphenyloxide disulfonate; diallyldiphenyloxide disulfonate; X+ alkyl sulfate; naphthalene sulfonate formaldehyde condensate; and combinations thereof. The method of invention further provides foamers that are compatible with a reverse osmosis membrane.
Abstract translation:公开并要求保护一种从气井中回收气体的气体发泡方法,并且提高穿透地层含油地层的气举井油的产油。 该方法包括向泡沫中引入泡沫形成量的组合物,其包含至少一种选自以下的化合物:X +烷基苯磺酸盐; X +烷基萘磺酸盐; 烷基二苯醚二磺酸盐; 二烯丙基二苯醚二磺酸盐; X +烷基硫酸盐; 萘磺酸甲醛缩合物; 及其组合。 本发明的方法还提供了与反渗透膜相容的起泡剂。
Abstract:
Disclosed and claimed is a method of demulsifying a produced emulsion into oil and water by adding a surfactant to the produced emulsion. The surfactant comprises any combination of surfactants having a plurality of hydrophilic groups.
Abstract:
A chemical softening composition includes a amide-substituted quaternary imidazolinium salt, a nonionic surfactant, and a polyhydroxy compound for use in treating cellulosic materials including papers, textiles and fabrics. The chemical softening composition can be applied to papermaking fibers during a papermaking process to provide a softened paper web and product possessed of sufficient tensile strength for its regular employment. A chemical softening composition according to the invention can also be applied to fabric to soften the fabric, provide easier handling of the fabric, and also reduce the tendency of the fabric to generate and store static electricity.
Abstract:
A composition comprising a .beta.-branched aldol ether alcohol having the structure: ##STR1## wherein X=5 to 8, at least one surfactant and water which is useful to prevent or reduce foam present in the aqueous medium of paper processing operations.
Abstract:
A method for reducing the viscosity of a hydrocarbon fluid encountered in petroleum operations is disclosed. The method includes contacting the hydrocarbon fluid with an effective amount of a composition comprising at least one polymer having at least 25 mole percent cationic monomers.
Abstract:
Disclosed and claimed is a method of demulsifying an emulsion comprising water and oil. The method comprises adding an effective amount of a composition comprising at least one substantially fully quaternized ammonium adduct of polyephalohydrin that has a molecular weight from about 500 Da to about 2,500 Da.
Abstract:
This invention relates to methods for reducing the viscosity of hydrocarbon liquids encountered in petroleum operations. The method includes forming a low viscosity emulsion by contacting hydrocarbon liquids with an effective amount of a water-soluble polymer having pendant methyl ether groups.