Abstract: Systems and methods are provided for evaluating a foamer for use in an oil and gas well for unloading of a liquid. The systems and methods provide for methods including: (a) combining (i) an aqueous phase, a hydrocarbon phase, or both an aqueous phase and a hydrocarbon phase in a predetermined proportion with (ii) a foamer to obtain a liquid, wherein the foamer is in a predetermined concentration in the liquid; (b) sparging the liquid with a gas at a predetermined gas flow rate to create a foam from at least some of the liquid and at least some of the gas; and (c) during or after the step of sparging, determining the amount of the liquid in the foam, wherein the step of determining is performed one or more times.

Abstract: Methods comprising: injecting into a wellbore in a subterranean formation a multi-particle lost circulation material composition comprising a base fluid and a particle blend comprising substantially cylindrical particles and substantially spherical particles and wherein said particle blend comprises: degradable particles of at least three different sizes and wherein a first-sized particles and a second-sized particles are substantially cylindrical and a third-sized particles are substantially spherical.

Abstract: Systems and methods for diagnosis of a water source of a water production problem in a well include: measuring flow and water/oil ratio (WOR) of a fluid mixture produced from a well; accepting the measured flow and the WOR over a period of time; calculating the derivative in time of WOR (WOR?) over the period of time; accepting a selection of or making a comparison of the WOR or WOR? over time to a particular WOR or WOR? case history from a library of WOR and WOR? case histories that correlate with various types of water sources in a library of potential water sources; accepting an additional type of information about the well selected from the group consisting of reservoir properties, completion history, production history, injection history, and interventions history; and weighting and scoring to suggest a diagnosis of a likely water source from the library of potential water sources.

Abstract: An oral care, personal care or cleansing composition with a carrier comprising a functional material and at least two polymers. One polymer has a greater solubility in water than the other polymer; one of the polymers may be water-soluble and the other polymer water-insoluble. The polymers are selected and apportioned to provide at least one of the following: (1) a desired stability of the film in the composition, (2) a desired rate of disintegration of the film during use of the composition, and (3) a desired rate of delivery of the functional material during use of the composition.

Abstract: The invention is directed to forming duplex prodrugs that provide significant increase in the transdermal flux of drugs across human skin. The prodrugs are prepared by reacting a drug that can form an ester moiety with phosgene to form a carbonate. The drug can be an opiate or an opiate antagonist. When in contact with human skin, the duplex drug is biotransformed by enzymes or by hydrolysis into two drug molecules.

Abstract: An oral care, personal care or cleansing composition with a carrier comprising a functional material and at least two polymers. One polymer has a greater solubility in water than the other polymer; one of the polymers may be water-soluble and the other polymer water-insoluble. The polymers are selected and apportioned to provide at least one of the following: (1) a desired stability of the film in the composition, (2) a desired rate of disintegration of the film during use of the composition, and (3) a desired rate of delivery of the functional material during use of the composition.

Abstract: This application relates to the visual impact of suspended materials in a liquid composition.

Abstract: A stain removing liquid dish cleaning composition with desirable cleansing and de-staining properties comprising a C8-18 ethoxylated alkyl ether sulfate, two anionic surfactant, a betaine surfactant, a hydroxy containing organic acid, polyethylene glycol, peracetic acid and water.