Abstract: A suspension for removing hydrocarbons from a subterranean formation includes a fluid comprising at least one of water, brine, steam, carbon dioxide, a light hydrocarbon, and an organic solvent; and a plurality of nanoparticles dispersed with the fluid. Nanoparticles of the plurality comprise silica and carbon. A method includes forming a plurality of nanoparticles and dispersing the plurality of nanoparticles with a fluid to form a suspension comprising the nanoparticles. A method of recovering a hydrocarbon material includes introducing a suspension into a subterranean formation containing hydrocarbons, forming a stabilized emulsion of the suspension and the hydrocarbons within the subterranean formation; and removing the emulsion from the subterranean formation. The suspension comprises a plurality of nanoparticles, and at least some nanoparticles of the plurality comprise silica and carbon.

Abstract: A pressure differential plug including a mandrel, a baffle within the mandrel, and one or more passageways in the baffle, the passageways configured and dimensioned to restrict flow therethrough due to a valve coefficient thereof to both allow fluid flow therethrough and simultaneously allow the building of actuation pressure against the baffle without landing a member on the baffle. A borehole system including a borehole, a string in the borehole, the string including a plug as as in any prior embodiment. A method for causing an actuation via pressure including flowing fluid through a baffle of a plug as in any prior embodiment, increasing a flow rate through the baffle to raise pressure upstream of the baffle to an actuation level without seating a member on the baffle.

Abstract: A wear resistant mesh for construction of a component includes a plurality of inserts, a web connecting the inserts to one another and maintaining geometry and spacing of the inserts. A component including a mesh including a plurality of inserts and a web connecting the inserts to one another and maintaining geometry and spacing of the inserts, a matrix material disposed about the mesh, the material exposing selected wear surfaces of the mesh. A method for making a mesh to dispose in a component for wear resistance and a method for producing a component having wear resistance and ductility.

Abstract: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Abstract: A screen including a screen segment having a mesh and a shroud radially outwardly of the mesh, a tracer material configured with a greater surface area than volume disposed radially inwardly of the shroud. A method for making a tracer screen including selecting a pattern of shroud holes in a screen cartridge for application of tracer material, applying tracer material into the selected holes, migrating the tracer material outwardly from the hole and between a mesh and the shroud of the screen cartridge. A borehole system including a borehole, a tubing string disposed in the borehole, and a tracer screen having tracer material with a greater surface area than volume disposed between a shroud and a mesh or a screen cartridge.

Abstract: An electromechanical rotary pipe mill or hone including a body, a motor with a mill or hone disposed thereon in radially adjustable position with respect to the body, a clamping device extendable from the body and configured for anchoring the tool in a tubular, and a portion of the body that is rotatable about an axis of the electromechanical pipe mill or hone. A method for removing material in a tubular including running on electric wireline an electromechanical rotary pipe mill or hone as in any prior embodiment to a target location in a tubular, registering the mill or hone with a feature identified for removal of material, deploying the clamping device, rotating the mill or hone on its own axis, rotating a portion of the body about its own axis, and radially displacing the mill or hone to remove material.

Abstract: Partially formed earth-boring rotary drill bits comprise a first less than fully sintered particle-matrix component having at least one recess, and at least a second less than fully sintered particle-matrix component disposed at least partially within the at least one recess. Each less than fully sintered particle-matrix component comprises a green or brown structure including compacted hard particles, particles comprising a metal alloy matrix material, and an organic binder material. The at least a second less than fully sintered particle-matrix component is configured to shrink at a slower rate than the first less than fully sintered particle-matrix component due to removal of organic binder material from the less than fully sintered particle-matrix components in a sintering process to be used to sinterbond the first less than fully sintered particle-matrix component to the at least a second less than fully sintered particle-matrix component.

Abstract: A well tool includes a first component, a second component, an orientation assembly, and a coupling device. The first component has a first device and the second component has a passage for receiving the first component and a second device. The orientation assembly causes a predetermined relative orientation between the first and the second component. The coupling device operatively couples the first device with the second device upon the orientation assembly orienting the first component with the second component in the predetermined relative orientation. The coupling device also communicates at least one of power and information between the first and the second device.

Abstract: A well tool includes a first component, a second component having a passage for receiving the first component, and an anchor assembly. The anchor assembly includes at least one anchor positioned on the first component that is received by at least one profile formed on an inner surface defining the passage of the second component. Either or both of the at least one profile and the at least one anchor include a ramp section that has a ramp contour defined by a ramp tangent. The ramp tangent forms an acute angle with a longitudinal axis of the borehole. A related method includes the steps of forming at least one profile in the second component, the at least one profile including a ramped section; disposing at least one anchor in the first component; and lowering the first component relative to the second component until the first anchor and the first profile align the first component and the second component in a predetermined relative alignment.

Abstract: A seal including a fluid resistive cover, a structured element disposed at an inside surface of the cover and drawable with the cover between a first position and a second position.

Abstract: Estimating parameters of interest of a formation, including density, porosity, and fluid saturation. Methods relate to gamma ray energy spectra calibration for a radiation detector including generating a calibration radiation spectrum using measurements of radiation with the detector in a time interval wherein the radiation comprises predominantly gamma rays emitted by decay of radionuclides produced by neutron activation reactions resulting from neutron irradiation, the time interval following a prior time interval corresponding to thermal neutrons produced from the irradiation; making at least one other radiation measurement with the detector outside the time interval; and producing a calibrated radiation measurement from the at least one other radiation measurement using the calibration radiation spectrum. The measurements may be taken in the time interval by conveying the radiation detector in the borehole at high speed and using a background gate of the detector.

Abstract: An embodiment of a system for performing measurements in a downhole environment includes an optical interrogation assembly configured to emit a pulsed optical signal, the pulsed optical signal including a selected wavelength, and an optical fiber configured to be disposed in a borehole in an earth formation and configured to receive the pulsed optical signal, the optical fiber having at least one measurement location disposed therein and configured to at least partially reflect the pulsed optical signal. The optical fiber has a core and a cladding, at least a portion of the core made from at least substantially pure silica, and the optical fiber has a refractive index profile configured to have a zero dispersion wavelength that is greater than the selected wavelength.

Abstract: A method for drilling a borehole penetrating an earth formation includes: drilling a first section of the borehole; notching a wall of the borehole in one or more selected locations with a selected type of notch using a notcher for defined local weakening of the formation; performing a local induced break-out test and/or local fracturing operation on an annulus section of the first section of the borehole between the drill string and a wall of the borehole using a test tool comprising a packer to provide formation stress-state data. The one or more locations is based on the formation stress-state data. The method further includes deriving stress-state of the formation and a fracturing parameter of the formation using the formation stress-state data and drilling a second section of the borehole using the derived stress-state and the fracturing parameter.

Abstract: Examples of techniques for performing a wellbore construction operation in a wellbore are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method includes: performing a rheology test on a test fluid, the test fluid being representative of a fluid pumped through the wellbore, to generate test fluid data; performing, by the processing device, a data analysis on the test fluid data to generate at least one parameterized correlation; measuring a first property of the fluid to generate measured data; calculating, by the processing device, a second property of the fluid in the wellbore by using the parameterized correlations and the measured data to generate calculated data; and changing a parameter of the wellbore construction operation based at least in part on the calculated data.

Abstract: Techniques for integrating contextual information into a workflow for a wellbore operation are described. According to an embodiment, a computer-implemented method includes defining, by a processing device, the workflow as a plurality of steps. The method further includes defining, by the processing device, a contextual information field associated with at least one of the plurality of steps. The method further includes receiving, by the processing device, contextual information associated with the contextual information field. The method further includes displaying, by the processing device, the at least one of the plurality of steps of the workflow and the contextual information associated with the contextual information field by integrating the contextual information into the at least one of the plurality of steps.

Abstract: An earth-boring rotary tool includes a tool body, at least one fixed blade associated with the tool body and configured to carry a fixed cutting element, and at least one leg configured to carry a rolling cutter. The tool body has a slot extending longitudinally generally parallel to a longitudinal axis defining an axial center of the tool body. The slot is at least partially defined by a first sidewall, a second sidewall opposing the first sidewall, a third sidewall extending between the first sidewall and the second sidewall, and an axial end wall of the tool body. A portion of the leg is disposed within the slot of the tool body and abuts the first sidewall of the tool body. A wedge is disposed within the slot and pins the leg to the tool body within the slot.

Abstract: Estimating a parameter of interest, comprising intermittently generating a calibration radiation source in the carrier, the calibration radiation source comprising a radioisotope producing radiation to which the radiation sensor is exposed. Methods include measuring a calibration response from the radiation sensor with measurement circuitry during the exposure to produce calibration information, and measuring another response from the radiation sensor with the measurement circuitry to produce measurement information after the radioisotope has decayed to a reduced radiation level such that the measurement information is substantially unaffected by the radioisotope. The radioisotope may be a positron emitter producing radiation by annihilation of the positrons emitted from the radioisotope. The radiation produced may thus be gamma rays.

Abstract: A diffuser valve including a housing having a housing porta closure member in operable communicating with the housing, the member having a member port, a diffuser having at least a body exhibiting porosity configured to reduce a fluid flow rate through the body, the diffuser disposed within a flow path between the housing port and the member port. A borehole system including a tubing string disposed in a borehole, a diffuser valve having a housing having a housing port, a closure member in operable communicating with the housing, the member having a member port, a diffuser having at least a body exhibiting porosity configured to reduce a fluid flow rate through the body, the diffuser disposed within a flow path between the housing port and the member port.

Abstract: A composite material comprising a plurality of hard particles surrounded by a matrix material comprising a plurality of nanoparticles. Earth boring tools including the composite material and methods of forming the composite material are also disclosed. A polycrystalline material having a catalyst material including nanoparticles in interstitial spaces between inter-bonded crystals of the polycrystalline material and methods of forming the polycrystalline material are also disclosed.

Abstract: A coring bit for use on a coring tool for extracting a sample of subterranean formation from a wellbore includes a bit body having a cavity, wherein a throat portion of the cavity extends into the bit body from a face of the bit body. The coring bit includes a sleeve disposed within the cavity of the bit body, the sleeve configured to separate a face discharge channel and a throat discharge channel. The face discharge channel is located radially outward of the sleeve and the throat discharge channel is located radially inward of the sleeve. A method of repairing a such a coring bit includes removing the sleeve from the cavity of a bit body.