Abstract: Aqueous emulsions containing a crosslinking agent, an emulsifying agent, a vegetable oil, and optionally a freeze point depressing agent are provided. Also provided are fluids that include the aqueous emulsion and a crosslinkable organic polymer, and additional fluids that contain the aqueous emulsion, a crosslinkable organic polymer and a proppant. The aqueous emulsions and fluids are useful in a variety of oil field and gas field applications. Furthermore, methods for the recovery of petroleum using the fluids described herein are also provided.

Abstract: The invention provides, inter alia, compositions and methods of using a lubricating agent containing nanoparticles in various drilling applications. Furthermore, the lubricating agent may act as a corrosion inhibitor and a friction reducer.

Abstract: A method is provided. The method includes recording transaction information for a consummated transaction related to a purchase of an item or service at a computer, the transaction information including information identifying a consumer; monitoring, by the computer, an incentive to purchase the item or service for a predetermined time period after purchase of the item or service by the consumer; comparing, by the computer, the incentive to the transaction information during the predetermined time period to determine if the incentive was offered as part of the consummated transaction; and if the incentive was not offered as part of the consummated transaction, duplicating, by the computer, the incentive for the consumer after the consummated transaction.

Abstract: A mount for a screen assembly, a screen assembly with such a mount, and a vibratory separator (e.g., a shale shaker) with such a screen assembly; the mount in certain aspects including a body with an inwardly projecting handle apparatus accessible when the screen assembly with such a mount is located in operation position on a mount structure of a vibratory separator.

Abstract: A method for guaranteeing a consumer a best price on an item or service purchased from a vendor in a consummated final first transaction, the method including, in certain aspects, determining a refund due to insure that a consumer receives the benefit of a later better price.

Abstract: An earth loop heat transfer system which, in certain aspects, has a heat transfer loop extending down into the earth and having a first portion, a second portion, and a bottom portion at a first level in the earth, heat transfer fluid flowable down to the bottom portion and up therefrom and in the second portion to the earth surface, and valve apparatus in the heat transfer loop for controlling flow of heat transfer fluid; and, in one aspect, such a system combined with a rig useful in well operations for supplying heat transfer fluid for use on the rig, either from a loop or loops with portion(s) in water or portion(s) in earth, or both.

Abstract: A system for facilitating flow of settled solids with drilling fluid from a container, the system including pressure nozzle apparatus with at least one nozzle from which is flowable fluid under pressure, powered rotation apparatus for selectively rotating the pressure nozzle apparatus so that the at least one nozzle is movable within the container as fluid is pumped through the at least one nozzle into the container; and, in one aspect, translation apparatus for moving the pressure nozzle apparatus with respect to the container as fluid under pressure is pumped to the at least one rotating nozzle.

Abstract: A vibratory separator (in one aspect, a shale shaker) and methods for using it, the separator in certain aspects having a base, a basket movably mounted on the base, screen apparatus on the basket, material flowing onto the screen apparatus for treatment, at least a portion of the screen apparatus not inclined downhill (e.g. said portion horizontal or uphill), electromagnetic vibratory apparatus connected to the basket for vibrating the basket and the screen apparatus, driving apparatus for driving the electromagnetic vibratory apparatus, and control apparatus (on-site and/or remote) for controlling the driving apparatus and the electromagnetic vibratory apparatus; the material, in one aspect, being drilling fluid material with solids therein.

Abstract: Interconnectible screen assemblies for vibratory separators or shale shakers and methods for manipulating such screen assemblies which, in certain aspects, include a first screen assembly and a second screen assembly positioning at least a portion of the first screen assembly with respect to the second screen assembly, releasably connecting the second screen assembly to the first screen assembly, and moving the first screen assembly and the second screen assembly together.

Abstract: A container having a bottom member, a top member releasably connected to the bottom member, the bottom member and the top member defining an interior space therebetween, at least one of the top member and the bottom member comprising a flyer disc; in one aspect, wherein the item is a pizza.

Abstract: A play activity set including a target at which objects may be directed, a plurality of objects for throwing at the target, the plurality of objects including at least a first object with a first opening therethrough and a second object with a second opening therethrough, in one particular aspect the first opening different in size than the second opening, the target made from box material from at least one box, the target including an upright portion and a first projection projecting from the upright portion, and the first opening and the second opening each sufficient to encompass the first projection when thrown at the target.

Abstract: Interconnectible screen assemblies for vibratory separators or shale shakers and methods for manipulating such screen assemblies which, in certain aspects, include a first screen assembly and a second screen assembly positioning at least a portion of the first screen assembly with respect to screen assembly holding apparatus, connecting a second screen assembly to the first screen assembly with at least one pin projecting from the first screen assembly into a corresponding recess of the second screen assembly, and moving the first screen assembly and the second screen assembly together.

Abstract: A vibratory separator (in one aspect for treating drilling material) and methods of use, the separator in certain aspects having a base, a basket or box movably mounted on the base, screen apparatus on the basket or box, the material flowing to the screen apparatus for treatment (downflow or upflow), at least a portion of the screen apparatus not inclined downhill (e.g. said portion or all horizontal or uphill), electromagnetic or piezoelectric vibratory apparatus connected to the basket or to the screen apparatus for vibrating the basket and the screen apparatus or for vibrating the screen apparatus, driving apparatus for driving the vibratory apparatus, and control apparatus (on-site and/or remote) for controlling the driving apparatus and the vibratory apparatus.

Abstract: A screen apparatus, which in certain aspects is a screen apparatus having a support, screening material on the support, and energizable identification apparatus on (exteriorly, interiorly, and/or within) the support for identifying the screen apparatus; a vibratory separator with such a screen apparatus; and a vibratory separator or shaker with energizable identification apparatus.

Abstract: A method for guaranteeing a consumer a best price on an item purchased from a vendor in a consummated final first transaction, the method including, in certain aspects, including determining a refund due to insure that a consumer receives the benefit of a later better price, and displaying the refund amount, individually or publicly, and, in one particular aspect, displaying a total amount for a plurality of such refunds.

Abstract: A vibratory separator and a screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, at least one screen assembly mounted in the basket, and at least one dam within the basket for intercepting material introduced into the basket, and for forming a relatively deep pool of material over one or more of the screen assemblies.

Abstract: A vibratory separator and methods for using it, the separator in certain aspects having a base, a basket on the base, motor apparatus for vibrating the basket and screen apparatus thereon, variable frequency drive apparatus for selectively driving the vibratory motor apparatus, and, in certain aspects, angle adjustment apparatus for adjusting angle of the basket; and, in certain aspects, for sensing a parameter indicative of operation of the vibratory separator, and control apparatus for receiving signals from the sensor apparatus, for controlling the separator based on said signals; and, in certain aspects, for automatically signalling a drive apparatus to change the speed of the motor apparatus; and, in certain aspects, the vibratory motor apparatus connectible to the basket at a plurality of locations so that a motion profile of the basket is selectively variable between linear, elliptical, and circular motion.

Abstract: A vibratory separator having a basket for supporting screen apparatus for treating material, the basket pivotably mounted on a base, vibratory apparatus connected to the basket for vibrating the basket, the material forming a pool on the screen apparatus, and a beach formed on the screen apparatus, measurement apparatus connected to the basket and positioned above the screen apparatus for measuring a distance from the measurement apparatus to a top surface of the pool, control apparatus for controlling and in communication with the measurement apparatus for receiving signals therefrom indicative of said distance, which distance is indicative of pool depth at that location and which correspond to beach extent, and adjustment apparatus controlled by the control apparatus for adjusting angle of the basket, thereby adjusting extent of the beach.

Abstract: A vibratory separator having a base, a basket movably mounted on the base and for supporting screen apparatus for treating material introduced into the vibratory separator, the basket on a base and pivotable with respect thereto, vibratory apparatus connected to the basket for vibrating the basket, screen apparatus supported by the basket, the material flowing onto the screen apparatus for treatment, angle adjustment apparatus connected to the basket for adjusting angle of the basket, sensor apparatus for sensing a parameter indicative of basket angle and for providing a signal corresponding to said basket angle, control apparatus for receiving signals from the sensor apparatus and for controlling basket angle based on said signals, the angle adjustment apparatus, in one particular aspect, including a rocker arm assembly with a first pivotable end.

Abstract: A vibratory separator (in one aspect a shale shaker) and screen assemblies for them; the screen assemblies, in at least certain aspects, having an undulating plate with a plurality of spaced apart openings therethrough, a plurality of spaced apart supports extending beneath the plate and to which the plate is secured, and each support having a length and independent of and not connected to the other supports along its length, each support having two spaced apart ends, and screening connected to the plate.