Abstract: Trimmer lines are provided. The trimmer lines include a nylon majority component, a monomer such as caprolactam, a biodegradation promoter, and a color additive and advantageously having desirable durability, biodegradability, and colorability.

Abstract: Enhanced suffusion coated and laminated nylon fibers are described. The fibers are formed from a blend of an aliphatic nylon and a semiaromatic nylon that is subsequently suffused with carbon. The nylon blend demonstrates advantageous physical properties over typical nylons, and the carbon suffusion process unexpectedly improved these physical properties further.

Abstract: Enhanced suffusion coated and laminated nylon fibers are described. The fibers are formed from a blend of an aliphatic nylon and a semiaromatic nylon that is subsequently suffused with carbon. The nylon blend demonstrates advantageous physical properties over typical nylons, and the carbon suffusion process unexpectedly improved these physical properties further.

Abstract: A packer system includes a retainer positionable adjacent to a packing element and coupleable to a cylinder of a downhole tool in a wellbore. The retainer is moveable in a first direction along a mandrel of the downhole tool to compress the packing element to a compressed state and generate a seal in the wellbore or to set a slip in response to an applied pressure. The packer system includes a piston moveable in a second direction along the mandrel and configured to compress a spring in response to the applied pressure. The packer system includes an interfacing element configured to couple the cylinder to the piston subsequent to the cylinder moving a predefined amount. The packer system includes a ratchet mechanism configured to prevent movement of the cylinder in the second direction.

Abstract: Trimmer line compositions and methods for forming trimmer line compositions are provided. The trimmer line compositions include a biodegradable toughening agent and polycaprolactone and advantageously increase the degradability of the trimmer line with minimal-to-no impact on the performance of the composition as trimmer line.

Abstract: The disclosure provides a mechanism for setting a packer. The mechanism comprises a piston disposed within a port of a packer mandrel, wherein the port comprises a seat operable to receive the piston. The mechanism further comprises a first chamber disposed at a first end of the piston, wherein the first chamber is sealed and comprises atmospheric pressure. The mechanism further comprises a spring disposed at a second end of the piston. The mechanism further comprises a second chamber disposed at the second end of the piston, wherein the second chamber comprises atmospheric pressure.

Abstract: A downhole packer system includes a swellable material configured to expand to seal against a wellbore wall in response to exposure to downhole fluids. The downhole packer system also includes at least one sensor disposed proximate the swellable material. The at least one sensor is configured to measure one or more electrical properties of the swellable material to determine a degree of expansion of the swellable material.

Abstract: A system comprising a sensor device to perform measurements in a wellbore. The system may also include a wireless transmitter to transmit a signal representing the measurements to a wired transmission system. The wired transmission system may transmit the signal to an interrogation system. A radioisotope power source may provide electrical power to the sensor system in the wellbore.

Abstract: A well tool in one or more example comprises a packer and a setting tool having a through bore in fluid communication with the tubular conveyance. An actuation port fluidically couples the through bore to a setting chamber. Pressurized fluid may be supplied to the setting chamber via the through bore to set the packer. An expandable material may then be exposed to an activation fluid to seal off the actuation port and isolate the setting chamber. By isolating the setting chamber after setting the sealing element, pressure may be increased to above the setting pressure to perform a well service operation, without damaging the setting chamber.

Abstract: Systems and methods of the present disclosure relate to isolating a setting chamber of an actuating assembly from tubing pressure. The actuating assembly comprises a cylinder; a mandrel disposed within the cylinder, the cylinder operable to move along the mandrel; a piston disposed between the cylinder and the mandrel, the piston operable to move along the mandrel in a direction opposite to that of the cylinder; a chamber disposed adjacent the piston, wherein the mandrel includes a port operable to allow fluid to pass into the chamber from the mandrel; and a spring disposed adjacent to the piston, the spring operable to expand, upon release of pressure from the chamber, to move the piston to seal the port and isolate the cylinder from pressure within the mandrel.

Abstract: An apparatus including an elongate tubular body having an inner bore with an inner diameter permitting a fluid flow therethrough. A flapper coupled with the tubular body and a flow meter coupled with the flapper. The flapper is actuatable from a bore open position to a bore restricted position. In the bore open position, the flapper is withdrawn from restricting the inner bore and in the bore restricted position the flow meter is exposed to the fluid flow.

Abstract: A system for control using a hydraulic fluid includes a hydraulic control line for flowing the hydraulic fluid, a fluid line in fluid communication with the hydraulic control line, a flow controller configured to regulate a flow of the hydraulic fluid in the fluid line, and a piezoelectric device in fluid communication with the hydraulic control line and configured to actuate the flow controller upon receiving a selected flow of the hydraulic fluid.

Abstract: A system for control using a hydraulic fluid includes a hydraulic control line for flowing the hydraulic fluid, a fluid line in fluid communication with the hydraulic control line, a flow controller configured to regulate a flow of the hydraulic fluid in the fluid line, and a piezoelectric device in fluid communication with the hydraulic control line and configured to actuate the flow controller upon receiving a selected flow of the hydraulic fluid.