Abstract: A seal includes a seal body and a temperature controller in thermal communication with the seal material. A method for controlling temperature of a seal including applying an energy source to the temperature controller, and generating a temperature difference in the temperature controller. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a seal tool disposed within or as part of the string.

Abstract: A density-based flow control configuration includes a housing and a first baffle having a first flow opening, a second baffle having a second flow opening adjacent the first baffle, one of the baffles being rotationally movable relative to the housing and to the other of the baffles, a first density float associated with the movable baffle, to impart torque to the associated baffle, the torque causing alignment or misalignment of the first and second openings. A method for allowing flow of a target fluid and choking flow of a nontarget fluid, including exposing a density-based flow control configuration to a fluid, imparting torque to a first baffle, and aligning or misaligning an opening in the first baffle with another opening to allow or choke flow of the fluid. A wellbore system, including a density-based flow control configuration.

Abstract: A seal, including a seal material, a substructure to which the seal material is attached, the substructure having end rings and a plurality of energizers extending between the end rings. A method for making a seal, including forming a substructure having end rings and a plurality of energizers extending between the end rings in a first position, longitudinally stretching the substructure, reducing an outside diameter of the substructure by the stretching, and disposing a seal material on the stretched substructure. A method for sealing a tubular structure, including disposing a seal in the tubular structure, allowing the substructure to recover the first position, and urging the seal material into contact with the tubular structure. A borehole system, including a borehole in a subsurface formation, a string in the borehole, and a seal disposed within or as a part of the string.

Abstract: Described herein is a soft leaf tissue elasticity tester comprising a modified piezoelectric finger (PEF) sensor and a sample pad useful for rapidly and sensitively screening plants for disease by quantifying changes in tissue elasticity and/or stiffness as an indication of plant disease. Also described is a method of screening plants for disease by quantifying changes in tissue elasticity and/or stiffness as an indication of infection. The tissue elasticity measurements used to screen plants for disease may be performed using the soft tissue elasticity tester described.

Abstract: A method for improving sealing in boreholes includes temperature controlling seals to maintain sealing loading by managing temperature of the seal to a target temperature range. A borehole system includes a borehole in a subsurface formation, a string in the borehole, a seal tool in contact with the string and temperature controller within or in thermal proximity to the seal.

Abstract: A seal including a seal material and a temperature control material in thermal communication with the seal material. A method for producing a seal having temperature regulating properties including adding a dopant to a seal material in a quantity that supports electrical conductivity and disposing an electrical connector on the seal. A borehole system comprising a borehole in a subsurface formation, a string in the borehole, and a seal tool disposed within or as a part of the string.

Abstract: A method for improving sealing in boreholes includes temperature controlling seals to maintain sealing loading by managing temperature of the seal to a target temperature range. A borehole system includes a borehole in a subsurface formation, a string in the borehole, a seal tool in contact with the string and temperature controller within or in thermal proximity to the seal.

Abstract: A seal includes a seal body and a temperature controller in thermal communication with the seal material. A method for controlling temperature of a seal including applying an energy source to the temperature controller, and generating a temperature difference in the temperature controller. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a seal tool disposed within or as part of the string.

Abstract: A fluid control device includes a support structure configured to be deployed to a selected location in a borehole, and a filtration medium disposed at the support structure and configured to filter a fluid, the filtration medium configured to be compacted from an initial shape to a compacted shape prior to deployment in the borehole. The filtration medium includes a first polymeric material configured to withstand a temperature at the selected location, the first polymeric material forming a porous structure including a plurality of fluid passages, and a second polymeric material including a shape memory polymer disposed within the fluid passages, the shape memory polymer configured to expand in the plurality of fluid passages and cause the filtration medium to expand in the borehole.

Abstract: A physical unclonable function (PUF) chip is provided. The physical unclonable function (PUF) chip includes a chip with a top metal connection layer, an array of spaced electrode plates on the top metal connection layer of the chip, a deposition layer, on the top metal connection layer between each two adjacent electrode plates. An opening is formed between the each two adjacent electrode plates in a row, and each two adjacent electrode plates are tangential to the opening formed between the two adjacent electrode plates. The physical unclonable function (PUF) chip further includes a conductive coating layer on the chip and the conductive coating layer includes conductive particles with randomly distributed size, and a package substrate, packaged with the chip including the conductive coating layer.

Abstract: A method for operation in wellbore, the method comprises: pumping a fluid barrier into a wellbore through a tubular, the fluid barrier being operable to separate a cement slurry from a second fluid; the fluid barrier comprising a polyurethane member derived from a polyurethane forming composition comprising a para-phenylene diisocyanate terminated polycarbonate prepolymer and an aromatic diol.

Abstract: A fluid control device includes a support structure configured to be deployed to a selected location in a borehole, and a filtration medium disposed at the support structure and configured to filter a fluid, the filtration medium configured to be compacted from an initial shape to a compacted shape prior to deployment in the borehole. The filtration medium includes a first polymeric material configured to withstand a temperature at the selected location, the first polymeric material forming a porous structure including a plurality of fluid passages, and a second polymeric material including a shape memory polymer disposed within the fluid passages, the shape memory polymer configured to expand in the plurality of fluid passages and cause the filtration medium to expand in the borehole.

Abstract: A physical unclonable function (PUF) chip is provided. The physical unclonable function (PUF) chip includes a chip with a top metal connection layer, an array of spaced electrode plates on the top metal connection layer of the chip, a deposition layer, on the top metal connection layer between each two adjacent electrode plates. An opening is formed between the each two adjacent electrode plates in a row, and each two adjacent electrode plates are tangential to the opening formed between the two adjacent electrode plates. The physical unclonable function (PUF) chip further includes a conductive coating layer on the chip and the conductive coating layer includes conductive particles with randomly distributed size, and a package substrate, packaged with the chip including the conductive coating layer.

Abstract: A method for operation in wellbore, the method comprises: pumping a fluid barrier into a wellbore through a tubular, the fluid barrier being operable to separate a cement slurry from a second fluid; the fluid barrier comprising a polyurethane member derived from a polyurethane forming composition comprising a para-phenylene diisocyanate terminated polycarbonate prepolymer and an aromatic diol

Abstract: A physical unclonable function (PUF) chip and a fabrication method are provided. The fabrication method includes: forming an array of spaced electrode plates on a top metal connection layer of a nude chip, while forming the top metal connection layer; forming a deposition layer, on the top metal connection layer between adjacent electrode plates; forming openings between adjacent electrode plates in a row, each opening having a circumference tangent to the adjacent electrode plates; coating a conductive coating layer on the nude chip, the conductive coating layer including conductive particles with randomly distributed size; and packaging the nude chip to provide the PUF chip.

Abstract: An electrical submersible pump assembly has a motor with a stator stack of limitations. The stack has slots through which magnet wires are wound. An encapsulate surrounds and bonds the magnet wires together within each slot. The encapsulate includes ceramic particles within a polymer adhesive matrix. The polymer matrix may be a fluoropolymer adhesive. Each of the magnet wires may have an electrical insulation layer surrounding a copper core. The ceramic particles are rounded and much smaller than a cross-sectional area of each of the magnet wires. At least some of the magnet wires may be in contact with a perimeter of the slot. The ceramic particles may be porous.

Abstract: A sealing system for a flow channel includes a mandrel, a swellable element disposed about the mandrel, and a degradable polymeric element disposed on a surface of the swellable element and configured to delay swelling of the swellable element. The degradable polymeric element comprises one or more of the following: polyurethane; cured cyanate ester; an epoxy; polyimide; unsaturated polyester; or nylon.

Abstract: A flexible device including a plurality of subassemblies, a connector depending from each of the subassemblies, a link connected to the connectors supplying a signal connection between the subassemblies. A resource recovery system including a spoolable conductor including a device disposed in line with the conductor, the device including a plurality of subassemblies, a connector depending from each of the subassemblies, a link connected to the connectors supplying a signal connection between the subassemblies.

Abstract: A system and method for confirming ignition of a fuel source in a wellbore. The system includes a tool, a fuel source associated with the tool, a control unit to ignite the fuel source, and a sensor to receive an ignition parameter corresponding to the fuel source. The ignition parameter indicates that ignition of the fuel source has occurred.

Abstract: A power cable for an electrical submersible well pump has at least one insulated conductor and an armor strip wrapped in helical turns around the conductor. The armor strip has a steel layer and a first polymer layer bonded to a first side of the steel layer. Each of the helical turns of the armor strip overlaps with another of the helical turns, causing the first polymer layer of each of the helical turns to form a seal with of a next one of the helical turns. A second polymer layer may be bonded to a second side of the steel layer. The second polymer layer of each of the helical turns overlies in sealing contact with the first polymer layer of the next one of the helical turns.