Abstract: The present disclosure provides techniques and apparatus for real-time monitoring of an electronic assembly using an optical waveguide. An example electronic assembly includes at least one component, at least one optical waveguide and a controller. The controller is configured to determine one or more operating parameters of the at least one component via the optical waveguide. The controller may trigger one or more corrective actions based on the operating parameters.

Abstract: A compact downhole tool, such as a frac plug, may include a single frustoconical member and a single set of slips. The slips may further include an internal button that engages with the frustoconical member. Various elements in the downhole tool may be dissolvable or degradable.

Abstract: To address the issues posed by the current methods of aesthetic improvement to water well(s) (head/casing). An innovative, adaptive, one size fits most textile solution designed to harmonize/blend a water well (head/casing) to its respective surroundings is a must for those who care about the aesthetic appeal of their property. The textile well cover listed herein offers a safe, size conforming, time friendly and economical solution to those simply trying to harmonize/blend their unsightly water well (head/casing) with its respective surroundings.

Abstract: A bridge plug for sealing a wellbore includes a mandrel assembly including an inner rod that is solid across a central axis thereof to restrict fluid communication across the mandrel assembly in both a first axial direction and an opposed second axial direction, and an outer rod including a different material than the inner rod and that is distinct from the inner rod whereby the outer rod overlies the inner rod, and a packer disposed about the mandrel assembly, the packer configured to seal the wellbore in response to the bridge plug being actuated from a first position to a second position, wherein the mandrel assembly is configured to apply a compressive force to the packer as the bridge plug is actuated from the first position to the second position and to maintain the compressive force until removed by an external tool.

Abstract: Improved wellbore trajectories are determined via fusing wellbore surveys and ranging measurements. A probability function is optimized to compute the improved trajectories having improved positional uncertainties. The probability function is defined such that it includes trajectories of first and second wellbores, corresponding positional uncertainties of the first and second wellbores, ranging measurements between the first and second wellbores, and a ranging uncertainty.

Abstract: A method of well construction includes first, providing a tool with a housing extending from a top end to a bottom end; then, positioning a first valve within the housing, the first valve creating a seal within the housing to prevent fluid flow past the first valve and into a well casing from the bottom end of the housing during a well operation; next, securing the tool to the well casing; then, running the tool and the well casing into a wellbore; and, finally, performing one or more well operations, the one or more well operations do not establish cement integrity within the tool such that the first valve is not filled with cement.

Abstract: A downhole instrument includes an instrument housing, a sensor yoke rotatably mounted within the instrument housing, and an angular rate sensor carried by the sensor yoke. A first rotational stop is mounted to the instrument housing that defines a first rotational position of the sensor yoke. A second rotational stop mounted to the instrument housing defines a second rotational position of the sensor yoke that is rotationally spaced from the first rotational position. A differential screw may be connected to the second rotational stop that is adapted to adjust a position of the second rotational position. A torsion coupling may be coupled between the rotational driver and the sensor yoke, where the torsion coupling is energized by the motor that rotates the sensor yoke with a returning force that resists movement of the sensor yoke away from the first rotational stop.

Abstract: A method for performing quality assessment of a seismic dataset. The method may include determining a first coherency distribution for a first calibration seismic dataset with a first quality rating and determining a second coherency distribution for a second calibration seismic dataset with a second quality rating. The method further includes determining a coherency threshold based on the first coherency distribution and the second coherency distribution and determining, based on the coherency threshold, a first quality indicator for the first calibration seismic dataset and a second quality indicator for the second calibration seismic dataset. The method further includes determining an application quality indicator for an application seismic dataset and determining, for the application seismic dataset, an application quality rating based on the application quality indicator, first quality indicator, second quality indicator, first quality rating and second quality rating.

Abstract: A method includes actuating a blow-out preventer (BOP) by moving a ram using an electric motor. The method also includes capturing sensor data with one or more sensors as the BOP is electrically-actuated. The method also includes determining one or more parameters with a controller based upon the sensor data. The method also includes controlling the electric motor based upon the one or more parameters.

Abstract: A compact vibratory burrowing probe, particularly beneficial in low gravity space exploration environments, uses lateral or stirring-like vibrations to fluidize a surrounding regolith, thereby decreasing the penetration resistance, and compensating for the light overhead weight to improve the burrowing action of the probe into the surface of the terrain of explored moons, planets, or asteroids. Included is a novel vibratory mechanism capable of imparting the novel lateral or stirring vibration, as well as a more conventionally oriented longitudinal vibration.

Abstract: Herein are described methods and systems for characterizing noise and noise level in pressure measurements in a downhole pressure testing operation in formation testing while drilling. The pressure measurements are acquired using a formation testing tool disposed on a drill string. The methods include drilling a borehole, extending the one or more probes into an inner surface of the borehole, performing a pressure testing operation with a first mud pump rate, wherein the pressure testing operation comprises a drawdown period and a build up period, decreasing the first mud pump rate to a second mud pump rate while measuring pressure during the build up period, decreasing the second mud pump rate to a third mud pump rate while measuring pressure during the build up period, and calculating a noise associated with pore pressure measurements during the first pressure testing operation.

Abstract: A downhole tool, comprising: an inner body, having first and second connections in a drill string to convey fluid from immediately upper to immediately lower components. The inner body defines a flow bore which communicates between the first and second connections. An outer body disposed around at least part of the inner body is axially movable with respect to the inner body, in a direction which is parallel or substantially parallel with a longitudinal axis of the tool, such that introduction of pressurised fluid into pressure chambers tends to drive the outer body axially with respect to the inner body. The tool further comprises a component which is activated or operated by axial movement of the outer body with respect to the inner body.

Abstract: A method of improving heat recovery from a geothermal well includes receiving temperature distribution data from a distributed temperature sensing (DTS) system comprising a fiber optic cable disposed in a wellbore, which extends through a formation; analyzing the temperature distribution data to determine a fluid flow profile along the wellbore; determining, based on the fluid flow profile, a location of dominant flow rate; and injecting a sealing agent into the formation at the location. When the sealing agent cures, fractures within a fracture system are sealed in the formation at the location. The cured sealing agent prevents or mitigates fluid flow through the formation at the location.

Abstract: A method may include drilling a portion of a borehole with a bottomhole assembly (BHA) including the downhole tool in an automated drilling routine. A method may include receiving, at a control unit of the BHA, a disengagement downlink communication having a disengagement magnitude and disengagement duration. A method may include, based at least partially on the disengagement downlink communication, disengaging the automated drilling routine.

Abstract: Methods for optimization of liquid oil production by huff-n-puff in shale reservoirs to achieve an improved (and optimal) oil recovery factor. The process determines and utilizes the optimum huff and puff times, number of cycles and soaking time under practical operation and reservoir conditions. The huff time in the process is a period so long that the pressure near the wellbore reaches the set maximum injection pressure during the huff period. The puff time in the process is the time required for the pressure near the wellbore to reach the set minimum production pressure during the puff period. Soaking is typically not necessary during the huff-n-puff gas injection in shale oil reservoirs. The number of huff-n-puff cycles is determinable by the time in which the economic rate cut-off is reached.

Abstract: A parameter roadmap system receiving reference wellbore data including drilling parameter data for one or more reference wellbores and selects a segmentation parameter set and associated segmentation parameter data from the reference wellbore data. Based on the segmentation parameter data, the parameter roadmap system segments the reference wellbore data into a plurality of depth segments using a statistical segmentation model. The parameter roadmap system identifies a segment threshold for each drilling parameter of the reference wellbore data at each of the plurality of depth segments to generate a drilling parameter roadmap and provides the roadmap for forming a target wellbore.

Abstract: A travel joint may accommodate relative movement between an upper and lower completion for communication of well fluids and control signals, while protecting the control lines used for signal control. In one example, the travel joint has an upper tubular member telescopically coupled to the lower tubular member to collectively define a flow path for well fluids through the travel joint. A plurality of telescoping control line conduits are secured about a travel joint periphery, each including an outer tube telescopically coupled to an inner tube to accommodate relative movement between the upper and lower tubular members. A control line routed through each telescoping control line conduit. A dynamic or expanding/hardening seal interface may be provided in the control line conduit to protect the control lines routed therethrough.

Abstract: In the context of downhole tools, fixed volume power charge initiator assemblies and bottom hole assemblies utilizing fixed volume power charge initiator assembly are disclosed. The fixed volume power charge initiator assembly has a pressure bulkhead coupled to a cartridge. The cartridge includes an igniter disposed within an interior cavity of the cartridge. When used in a bottom hole assembly the fixed volume power charge initiator assembly is located in a setting tool adjacent to a power charge located within a combustion chamber of the setting tool. The combustion chamber and the cartridge together define a fixed total combustion volume. In some instances, the fixed volume power charge initiator assembly includes a power charge detector switch. Other assemblies are discussed.

Abstract: A compact downhole tool, such as a frac plug, may include a single frustoconical member and a single set of slips. The slips may further include an internal button that engages with the frustoconical member. Various elements in the downhole tool may be dissolvable or degradable.

Abstract: Methods, devices and systems are disclosed for magnetically ranging while drilling with a coiled tubing unit or drill pipe by way of a an electrically conducive but environmentally electrically insulated wire installed through a coiled tubing spool or drill pipe complete with electrically insulative subs in the coiled tubing bottom hole assembly or drill pipe. The method and systems allow for the injection of excitation current into the formation by way of selectively electrifying various drill stem components, thereby facilitating current collection on a target tubular which radially emanates a magnetic field about the target well tubular(s). The method and devices allow for the construction of complex downhole current injection configurations which allow for modification of the bottom hole assembly to maximize target well signal generation in the presence of adverse environmental conditions.