Abstract: A carbon disulfide-modified amine additive may be introduced to an aqueous stream in an effective amount to separate oil from the water in the aqueous stream, such as separating at least some of the oil from emulsified oil-in-water in a production fluid, where the oil is crude oil. The carbon disulfide-modified amine additive may be produced from a reaction of synthetic amine, natural amines, or chemically modified natural amines with carbon disulfide and an ?,?-unsaturated compound and/or an epoxide in one step. In one non-limiting embodiment, the amine is a natural amine or chemically modified natural amine of a polysaccharide containing amino functional group(s). Optionally, a base catalyst is used to make the carbon disulfide-modified amine additive.

Abstract: A permeable material including a plurality of hollow structures having a plurality openings therein allowing fluid transfer between an inside volume of the hollow structure and an environment outside of the hollow structure, and a bond between adjacent ones of the plurality of hollow structures. A downhole filtration tool including a mandrel, and the material disposed about the mandrel. An embodiment of a method for making a permeable material including aggregating a plurality of hollow structures into a mass, and bonding the structures together. An embodiment of a borehole system including a borehole in a subsurface formation, and the material, disposed in the borehole.

Abstract: An apparatus for use in a wellbore includes a drill string section, a drive shaft disposed in the drill string section, a bearing assembly connected to the drive shaft, and an alignment assembly connecting the bearing assembly to the drill string section. The alignment assembly has a first alignment member and a second alignment member slidingly engaging one another to allow at least a portion of the bearing assembly to tilt relative to the drill string section. A related method includes the steps of positioning a drive shaft in a drill string section; connecting a bearing assembly to the drive shaft using the alignment assembly, the alignment assembly having a first alignment member and a second alignment member; and allowing at least a portion of the bearing assembly to tilt relative to the drill string section using the alignment assembly by having the first alignment member and the second alignment member slidingly engage one another.

Abstract: An apparatus for removing a casing from a borehole penetrating a formation in one run of the apparatus in the borehole includes: a carrier conveyed in the borehole; a non-incendiary hole former on the carrier to form a hole in the casing; a fluid discharge device on the carrier to discharge a fluid into the hole to wash an exterior portion of the casing; a casing puller on the carrier and having a casing grip to grip the casing to lift the casing or a portion of the casing out of the borehole; a mechanical cutter on the carrier to cut the casing; and a valve on the carrier to control fluid energy to least one of the non-incendiary hole former, the fluid discharge device, the casing puller, and the mechanical cutter.

Abstract: A treatment system including a settable and unsettable seal sub, an operation sub connected to the seal sub, the operation sub including a flow restrictor, and a selectively openable port biased to a closed position. A borehole system including a slickline, and a resettable seal connected to the slickline and runnable in the borehole on the slickline. A method for treating a formation adjacent a borehole including running the treatment system on a slickline to a target depth, flowing past the flow restrictor thereby causing the flow restrictor and a mandrel upon which the restrictor is mounted to move toward the seal sub, partially setting the seal sub and increasing pressure on the seal sub thereby fully setting the seal sub. A borehole system, including a borehole in a subsurface formation, a treatment system disposed within the borehole.

Abstract: A downhole component includes a member formed from a first material. The member includes an end having a first plurality of external threads and a second end having a first plurality of internal threads. One of the first plurality of external threads and the second plurality of internal threads includes a first portion formed from the first material and a second portion formed from a second material that is distinct from the first material.

Abstract: A seal section for use in a downhole submersible pumping system includes a lower chamber, an upper chamber and an intermediate guide section between the lower chamber and the upper chamber. The lower chamber includes a seal bag assembly that has a seal bag containing motor oil and an exterior space around the seal bag that contains high density oil that is denser than the motor oil. The upper chamber includes a volume of the high density oil at the bottom of the upper chamber and a gravity trap connected to the exterior space through an intermediate passage in the intermediate guide section. The gravity trap includes an opening submerged in the volume of high density oil in the upper chamber.

Abstract: A method of analyzing a fluid includes acquiring a sample of the fluid extracted from a subterranean region proximate to a borehole, the borehole including an injected fluid, applying light having a first excitation wavelength to the fluid sample, and measuring a first fluorescence spectrum. The method also includes comparing the first fluorescence spectrum to a reference fluorescence spectrum corresponding to a fluid having injected fluid contamination and/or to a second fluorescence spectrum based on applying light having a second excitation wavelength to the fluid sample. The method further includes estimating a level of contamination of the fluid sample with the injected fluid based on the comparing.

Abstract: Systems and methods involve capturing gaseous and liquid byproducts from the recovery of hydrocarbons and then using those captured byproducts for commercially and environmentally advantageous purposes. A method for recovering hydrocarbons from a well includes the steps of placing the well in a first mode of operation in which gases from the well are stored under pressure in a gas storage unit on the surface, and placing the well in a second mode of operation in which gases are transferred from the gas storage unit into an underground gas storage formation through the well. Methods for managing produced water include the steps of storing the produced water in an underground water storage reservoir, heating the produced water with geothermal energy, and transferring the heated water to an energy recovery system to generate electricity from the heated produced water.

Abstract: In an embodiment, a method includes receiving a first measurement of gamma rays via a detector during a first period of time, receiving a second measurement of gamma rays via the detector during a second period of time, removing the second measurement from the first measurement to produce an inelastic spectrum, determining a spectral slope from the inelastic spectrum, determining a scaling factor based on the spectral slope, determining a spectral shape associated with the detector, determining a detector-induced spectrum by applying the scaling factor to the spectral shape, and removing the detector-induced spectrum from the inelastic spectrum to produce a clean inelastic spectrum.

Abstract: A method of forming a sand control device comprising: infusing a curable inorganic mixture with a degradable material configured to disintegrate upon exposure to an external stimuli; forming the curable inorganic mixture infused with the degradable material about a tubular; and curing the curable inorganic mixture infused with the degradable material.

Abstract: A rotary valve including a port housing, a port, an axially actuated rotary sleeve disposed within the port housing, the sleeve having a plurality of apertures in fluid communication with the port; and an insert disposed within the sleeve, the insert having an opening, the sleeve being rotatable to align one of the plurality of apertures with the opening. A rotary valve including a port housing, having a port, an axially actuated rotary sleeve disposed within the port housing, the sleeve having an aperture; and an insert disposed within the sleeve, the insert having a plurality of openings of distinct size from one another, the aperture of the sleeve being selectively alignable with one of the plurality of openings.

Abstract: A method for capturing carbon from a source of volatile pollutants includes the steps of capturing a mixture of volatile pollutants and air from the source of volatile pollutants, transporting the volatile pollutant-air mixture to an oxidizer module, converting the volatile pollutants into carbon dioxide within the oxidizer module, transporting the carbon dioxide from the oxidizer module to a contactor, loading the carbon dioxide onto sorbents within the contactor, and separating the carbon dioxide from the loaded sorbents to produce a concentrated carbon dioxide product stream. The step of separating the carbon dioxide from the loaded sorbents may optionally include the steps of passing the loaded sorbents to the oxidizer module, and then heating the loaded sorbents in the oxidizer module with the combustion of the mixture of volatile pollutants and air within the oxidizer module to produce the concentrated carbon dioxide product stream while regenerating the sorbents.

Abstract: A system including a work string and an acoustic device for sensing or transmitting an acoustic signal at least partially traveling through a borehole fluid within a wellbore and a method of operation. The acoustic device includes a compensation fluid, an acoustic transducer at least partially disposed in the compensation fluid and configured to sense the acoustic signal, and a metallic cover that separates the compensation fluid from the borehole fluid and configured to deform in response to a pressure difference between the borehole fluid and the compensation fluid. The acoustic device is conveyed into the wellbore and an electric signal is sent or received with the processor to or from the acoustic transducer.

Abstract: Halite scales in an oilfield brine that has a potential for halite scaling can have halite scale formation inhibited or prevented by adding an effective amount of an additive, where the additive contains at least one non-water-soluble quaternary ammonium compound and at least one organic solvent. The quaternary ammonium compound may be benzyl-alkyldimethyl ammonium chloride, where the alkyl group has from 2 to 30 carbon atoms. The organic solvent may be one or more alcohol or glycol.

Abstract: Sensing systems include a tube defining a Fabry-Perot cavity and an optical fiber including a distal end disposed within the Fabry-Perot cavity and a proximal end. A corrodible material caps the Fabry-Perot cavity. Devices for sensing corrosion of downhole equipment include an optical fiber with a corrodible material disposed over a distal end of the optical fiber. Systems for sensing a condition in equipment include an optical fiber with a fiber Bragg grating proximate a distal end thereof and a mass of sensor material coupled to the distal end of the optical fiber. The mass of sensor material is suspended from above the fiber Bragg grating. Other systems for sensing a condition in a wellbore include an optical fiber and a plurality of fiber Bragg gratings along a length thereof. A plurality of sensor materials are coupled to the optical fiber and surround respective fiber Bragg gratings.

Abstract: An asymmetric release configuration including a projection, a recess receptive to the projection the recess having a first shoulder that when brought into contact with the projection in a first direction loads the projection in a first way that results in a first release threshold, and a second shoulder that when brought into contact with the projection in a second direction loads the projection in a second way that results in a second release threshold, the second release threshold being different than the first release threshold. A method for operating a borehole including running a configuration into a borehole to a target depth, resisting a load on the configuration in a first direction to a first release threshold, and resisting a load in another direction to a second release threshold different than the first release threshold.

Abstract: A system for determining corrosion under insulation of an industrial asset is provided. The system includes an infrared camera configured to acquire one or more time-series infrared images of an industrial asset. The system further includes a computing device configured to receive data characterizing the one or more time-series infrared images, and to identify an area of interest of the industrial asset within the one or more time-series infrared images. The computing device further configured to identify, by a machine learning algorithm, a plurality of defects within the area of interest based on pixel-wise assignment of at least one defect category selected from a plurality of defect categories associated with corrosion under insulation of the industrial asset, and to provide the plurality of defects within the area of interest of the industrial asset. Related methods, apparatuses, and computer-readable mediums are also provided.

Abstract: A hanger system including an expandable liner, an expandable first slip subsystem disposed about the liner, an expandable second slip subsystem disposed about the liner, a seal disposed about the liner and between the first slip subsystem and the second slip subsystem, and an expandable lock ring disposed about the liner and against one of the first slip subsystem or the second slip subsystem. A method for lining a borehole including running a liner system into a borehole, landing the liner system in a liner hanger, expanding the first slip subsystem simultaneously with a portion of the liner, expanding the second slip subsystem simultaneously with another portion of the liner, and sealing the liner to the liner hanger between the first slip subsystem and the second slip subsystem with the seal. A borehole system including a borehole in a subsurface formation, a casing in the borehole, and a liner system.

Abstract: Examples described herein provide a system that includes a pallet. The pallet includes a base and a support member extending from the base. The support member is configured to support another pallet upwardly adjacent to and spaced from goods on the pallet. The support member is configured with an indexing feature. The system further includes a robot including a pallet engaging member configured to engage the pallet at the indexing feature on the support member. The system further includes a control system to control the robot based on a task.