Abstract: A method of coupling two pipes includes fastening two coupling segments into an untightened configuration, the two coupling segments comprising a first segment and a second segment, the first segment comprising a first end and a second end distal to the first end, the second segment comprising a first end and a second end distal to the first end, wherein fastening the two coupling segments comprises: placing a pivot clip between the second end of the first segment and the first end of the second segment, the pivot clip configured to maintain a separation distance between the second end of the first segment and the first end of the second segment; and tightening a first tightening element to draw the second end of the first segment towards the first end of the second segment; and placing ends of the two pipes between the two coupling segments.

Abstract: Two-in-one walking supports and methods of using the walking support. The walking supports include first and second shaft portions and a handle assembly that has first and second handles. A latching mechanism is incorporated into the first and second handles and is configured to releasably couple the first and second handles to form the handle assembly and a single walking support configuration with the first and second shaft portions abutting one another and being configured to decouple the first and second handles and separate the first and second shaft portions to form a two-piece walking support configuration.

Abstract: A turbo shield with a slit, wherein the slit is configured to allow an inner diameter across the turbo shield to increase and decrease without altering the properties of fibers associated with the turbo shield.

Abstract: A popcorn ceiling scraper includes a scraping head with multiple blades, at least one of which is oriented horizontally in the same plane as the scraping head with other blades extending vertically from the scraping head. The ceiling scraper has a funnel arranged below the scraping head, and the funnel and the scraping head are formed to reach to an edge or juncture between a ceiling and a wall.

Abstract: Examples of the present disclosure relate to systems and methods for mapping a wellbore for refracturing. More specifically, embodiments are directed towards utilizing downhole pressure data to identify previously untreated clusters, clusters with cross contamination, and clusters with proper zonal isolation with full pressure integrity.

Abstract: The invention relates to a decorative surface covering element, in particular a floor panel, ceiling panel or wall panel. The invention also relates to a panel covering, such as a floor covering, ceiling covering or wall covering, comprising a plurality of panels according to the invention. The invention further relates to a method of producing a decorative surface covering element according to the invention.

Abstract: A pipe coupling includes a first coupling segment defining opposed ends, one end of the first coupling segment defining a first pivotal mount, and another end of the first coupling segment defining a second pivotal mount; a second coupling segment defining opposed ends, a proximal end of the second coupling segment configured to pivotally connect to the first pivotal mount, and a distal end of the second coupling segment configured to receive a fastener; and a third coupling segment defining opposed ends, a proximal end of the third coupling segment configured to pivotally connect to the second pivotal mount, and a distal end of the third coupling segment configured to receive the fastener.

Abstract: Embodiments of drive equipment for mobile hydraulic fracturing power units and methods for changing and controlling the drive equipment are disclosed. The mobile power units include a gas turbine engine that provides mechanical power to drive shaft which is connected to the drive equipment such that the drive equipment is driven by the engine. The drive equipment may be a hydraulic fracturing pump or an electrical generator. The drive shaft is rotated at a speed suitable for the hydraulic fracturing pump and the electrical generator includes a step up gearbox to increase a rotational speed of the drive shaft for use by the electrical generator. The drive equipment may be secured to a skid that is field changeable with a crane or a fork lift to change the drive equipment at a well pad based on the demands of the well pad.

Abstract: An apparatus, system and/or method for making observations down a wellbore are provided. The wellbore observation system may comprise a mandrel that can be run downhole, and telescoping tracks can be utilized to move a camera and semi-conforming inflatable bladder out of the mandrel and into the wellbore. Once the bladder is inflated, it displaces high turbidity fluid in the wellbore to allow the camera to move about a track and observe the wellbore unobstructed. An alternative embodiment allows the mandrel and telescoping tracks to be utilized with other tools to perform cleaning, fishing, diagnostic, and analytic operations.

Abstract: An expandable reel for a well system includes a support frame configured to receive a torque from a motor, and a core assembly configured to couple to the support frame and receive a tubular of the well system about an outer surface of the core assembly, wherein the core assembly is actuatable between a first configuration and a second configuration while remaining coupled to the support frame, wherein the core assembly includes a first outer diameter when in the first configuration and a second outer diameter when in the second configuration that is different from the first outer diameter.

Abstract: Aqueous well treatment fluids especially suited for use in far field diversion in low viscosity carrier fluids comprise water, a friction reducer, and a diverter. The diverter comprises dissolvable particulates and proppants. The dissolvable particulates have a specific gravity of from about 0.9 to about 1.6 and a particle size of about 50 mesh or less. The proppants have a specific gravity of from about 0.9 to about 1.4 and a particle size of from about 20 to about 100 mesh. The dissolvable particulates have a higher specific gravity and a smaller particle size than the proppant.

Abstract: Systems and methods to pump fracturing fluid into a wellhead may include a gas turbine engine including a compressor turbine shaft connected to a compressor, and a power turbine output shaft connected to a power turbine. The compressor turbine shaft and the power turbine output shaft may be rotatable at different rotational speeds. The systems may also include a transmission including a transmission input shaft connected to the power turbine output shaft and a transmission output shaft connected to a hydraulic fracturing pump. The systems may also include a fracturing unit controller configured to control one or more of the rotational speeds of the compressor turbine shaft, the power turbine output shaft, or the transmission output shaft based at least in part on target signals and fluid flow signals indicative of one or more of pressure or flow rate associated with fracturing fluid pumped into the wellhead.

Abstract: Systems and methods to enhance the flow of fracturing fluid into a wellhead during a high-pressure fracturing operation may include providing a pump frame and a crankshaft. A plurality of first plungers may be connected to the crankshaft and may reciprocate in a first plane. The hydraulic fracturing pump also may include a plurality of second plungers connected to the crankshaft and positioned to reciprocate in a second plane. The first plane and the second plane may define a non-zero offset angle between the first plane and the second plane. The crankshaft may include a plurality of crankpins, and each of the crankpins may be connected to one of the first plungers and one of the second plungers. The first plungers may pump a first fracturing fluid and the second plungers may pump a second fracturing fluid different from the first fracturing fluid.

Abstract: A roll-dispensed stock container is provided. The roll-dispensed stock container has a recessed cutting track and can be assembled by computer aided manufacturing processes.

Abstract: Aqueous well treatment fluids especially suited for use in far field diversion in low viscosity carrier fluids comprise water, a friction reducer, and a diverter. The diverter comprises dissolvable particulates and proppants. The dissolvable particulates have a specific gravity of from about 0.9 to about 1.6 and a particle size of about 50 mesh or less. The proppants have a specific gravity of from about 0.9 to about 1.4 and a particle size of from about 20 to about 100 mesh. The dissolvable particulates have a higher specific gravity and a smaller particle size than the proppant.

Abstract: Aqueous well treatment fluids especially suited for use in far field diversion in low viscosity carrier fluids comprise water, a friction reducer, and a diverter. The diverter comprises dissolvable particulates and proppants. The dissolvable particulates have a specific gravity of from about 0.9 to about 1.6 and a particle size of about 50 mesh or less. The proppants have a specific gravity of from about 0.9 to about 1.4 and a particle size of from about 20 to about 100 mesh. The dissolvable particulates have a higher specific gravity and a smaller particle size than the proppant.

Abstract: Systems and methods for operating hydraulic fracturing units, each including a hydraulic fracturing pump to pump fracturing fluid into a wellhead and an internal combustion engine to drive the hydraulic fracturing pump, may include receiving signals indicative of operational parameters. The systems and methods also may include determining an amount of required fracturing power sufficient to perform the hydraulic fracturing operation, determining an available power to perform the hydraulic fracturing operation and a difference between the available power and the required power, and controlling operation of the hydraulic fracturing units based at least in part on the power difference. When the power difference is indicative of excess power available, the system and methods may include causing at least one of the hydraulic fracturing units to idle, and when the power difference is indicative of a power deficit, increasing a power output of at least one of the hydraulic fracturing units.

Abstract: A method is provided to limit inter-cellular leakage between cells in retinal or choroidal vasculature. As a result, an ocular disorder in which ocular or choroidal edema occurs based on leakage of the Adherens Junctions or Tight Junctions is readily treated. The method is particularly well-suited for usage in response to the blood-retinal barrier (BRB) compromise. A method is also provided for the reduction of plasmalemma vesicle-associated protein (PLVAP), which causes transcytosis and pinicytotic leakage. In a particular application, fluid collection under retinal pigment epithelial cells in wet macular degeneration is reduced; a condition currently without effective clinical treatments.

Abstract: A urea cycle augmenting composition for improving plant growth and yields and quality of crops includes a urea cycle augmenting composition, which comprises two or more of L-arginine, L-ornithine, L-aspartic acid, L-citrulline, L-argininosuccinic acid, and agmatine, or salts or derivatives thereof. An amount of the composition applied to a seed or a plant is sufficient to augment the urea cycle of a plant growing from the seed or the plant.

Abstract: Embodiments of a high-pressure, high power, reciprocating positive displacement fluid pumping system and methods are included. The system may include a high-pressure, high power, reciprocating positive displacement pump including a pump plunger, a fluid end block assembly, and a fluid cover. The fluid end block assembly may include a fluid end block body, a suction port, a discharge port, a pump bore positioned in and extending through the fluid end block body, and a fluid chamber positioned in the fluid end block body and in fluid communication with each of the suction port, the discharge port, and the pump bore. The fluid chamber has an open end portion, and the pump plunger may be positioned to move in the pump bore to pressurize one or more fluids in the fluid chamber.