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.

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.

Abstract: A degradable polymer composition comprises a polyurethane comprising ester groups in a backbone of the polyurethane and carboxylic acid groups attached to the backbone of the polyurethane; and a filler comprising one or more of the following: a powder comprising particles having an average particle size of about 5 microns to about 500 microns; or a fiber having an average length of about ? inch to about 5 inches. Also disclosed are articles comprising the composition. A method to degrade the article includes exposing the article to a fluid at a temperature of about 25° C. to about 300° C.

Abstract: A seal assembly features radially stacked sealing elements separated by a ring shaped structural member with the structural member configured to fold on itself as the inner and outer sealing elements are axially compressed during the setting process. The structural member remains embedded in the outer sealing element when the assembly is set. Seal rings flank the inner and outer sealing element and feature an outwardly facing bevel to contact a conforming bevel shape on extrusion ring assemblies. During axial compression the extrusion rings are pushed out with the seal rings and then the inner and outer sealing elements are axially compressed as the structural member's ends come together and its middle folds. The structural member creates gaps to allow fluid to escape during setting.

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 degradable polymer composite comprises a polyurethane comprising one or more of the following groups: ester groups; carbonate groups; or ether groups, in a backbone of the polyurethane; and about 1 to about 30 parts by weight of an acidic or basic powder comprising particles having an average size of about 5 microns to about 1 millimeter per 100 parts of the polyurethane.

Abstract: A sealing system for a flow channel comprises 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; wherein the degradable polymeric element comprises one or more of the following: polyurethane; cured cyanate ester; an epoxy; polyimide; unsaturated polyester; or nylon.

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 power charge for a packer setting tool includes an outer casing and an amount of flammable material within the casing. A heating igniter is retained within the outer casing in contact with the flammable material. The heating igniter is energized by electrical power to heat it to a temperature that is sufficient to ignite the flammable material.

Abstract: Methods for actuating tools within a wellbore include disposing the tool and an associated tool actuator within the wellbore. The tool actuator includes an amount of flammable, non-explosive material and a heating igniter. The tool actuator actuates the tool by generating gases which create a pressure differential.

Abstract: DNA amplification methods using novel primers obtained from the novel genes hyvI and hyvII from the Candidatus Liberibacter asiaticus genome are useful for detecting Ca. L. species in plants and insect hosts.

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: A system and method for confirming ignition of a fuel source in a wellbore is disclosed. 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.

Abstract: A seal assembly features radially stacked sealing elements separated by a ring shaped structural member with the structural member configured to fold on itself as the inner and outer sealing elements are axially compressed during the setting process. The structural member remains embedded in the outer sealing element when the assembly is set. Seal rings flank the inner and outer sealing element and feature an outwardly facing bevel to contact a conforming bevel shape on extrusion ring assemblies. During axial compression the extrusion rings are pushed out with the seal rings and then the inner and outer sealing elements are axially compressed as the structural member's ends come together and its middle folds. The structural member creates gaps to allow fluid to escape during setting.

Abstract: Disclosed is a display device and a method for implementing an incoming notification function with respect to an MHL signal source. The display device includes: a control module, configured to control, when the display device is in a non MHL signal source pattern, a first MHL interface transfer switch, disposed between a signal decoding processor and an MHL signal source interface of the display device, to be on, and configured to start a background monitoring module electrically connected to the first MHL interface transfer switch, and further configured to display, if an MHL signal source is monitored to be connected, incoming reminder information according to a pre-configured incoming notification information or switch a current signal source pattern of the display device to be the MHL signal source pattern; and the background monitoring module, configured to monitor whether the MHL signal source is connected.

Abstract: A degradable polymer composite comprises a polyurethane comprising one or more of the following groups: ester groups; carbonate groups; or ether groups, in a backbone of the polyurethane; and about 1 to about 30 parts by weight of an acidic or basic powder comprising particles having an average size of about 5 microns to about 1 millimeter per 100 parts of the polyurethane.

Abstract: DNA amplification methods using novel primers obtained from the novel genes hyvI and hyvII from the Candidatus Liberibacter asiaticus genome are useful for detecting Ca. L. species in plants and insect hosts.

Abstract: In one aspect, a degradable apparatus is disclosed, including: an inner core with a first degradation rate in a downhole environment; an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing an inner core with a first degradation rate in a downhole environment; providing an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment; sealing the downhole zone with the outer sheath; exposing the outer sheath to the downhole environment; and exposing the inner core to the downhole environment.

Abstract: A degradable polymer composition comprises a polyurethane comprising ester groups in a backbone of the polyurethane and carboxylic acid groups attached to the backbone of the polyurethane; and a filler comprising one or more of the following: a powder comprising particles having an average particle size of about 5 microns to about 500 microns; or a fiber having an average length of about ? inch to about 5 inches. Also disclosed are articles comprising the composition. A method to degrade the article includes exposing the article to a fluid at a temperature of about 25° C. to about 300° C.

Abstract: Disclosed is a display device and a method for implementing an incoming notification function with respect to an MHL signal source. The display device includes: a control module, configured to control, when the display device is in a non MHL signal source pattern, a first MHL interface transfer switch, disposed between a signal decoding processor and an MHL signal source interface of the display device, to be on, and configured to start a background monitoring module electrically connected to the first MHL interface transfer switch, and further configured to display, if an MHL signal source is monitored to be connected, incoming reminder information according to a pre-configured incoming notification information or switch a current signal source pattern of the display device to be the MHL signal source pattern; and the background monitoring module, configured to monitor whether the MHL signal source is connected.