Abstract: A plug bypass tool including a housing defining a main flow passage and a bypass passageway, the bypass passageway extending between a first port and a second port, the first and second ports being fluidly connected to the main flow passage, a first seat and a first sleeve disposed within the passage between the first port and second port, and a second seat and a second sleeve disposed in the passage, the second sleeve movable between a position covering the second port and a position revealing the second port.

Abstract: Wellbore logging tools can include a coil antenna assembly that prevents breakage of a coil wire during downhole use under elevated pressure. The antenna assembly can include an insulator base used to help insulate the wires so elevated downhole pressures do not result in a short to a tool mandrel. The insulator base provides a recessed path for the in/out portions of the wire so manufacturing fixtures of the antenna assembly will not damage them.

Abstract: The present disclosure relates to, according to some embodiments, an extraction process for recovering an oil from an oil reservoir comprising a mobile water. The extraction process includes the step of injecting a first solvent into the oil reservoir through the at least one injection well to form a first mixture, the first mixture comprising the first solvent, a first portion of mobile water, and a first portion of oil.

Abstract: A rolling element assembly includes a rolling element rotatable about a rotational axis when positioned within a cavity defined on a bit body of a drill bit, and a compliant retainer positioned within a retainer slot defined in the bit body. A biasing device is positioned within a device pocket defined within the bit body to bias the compliant retainer against the outer circumferential surface of the rolling element. The compliant retainer secures the rolling element within the cavity while an arcuate portion of the rolling element protrudes from the cavity and exposes a full axial width of the rolling element.

Abstract: A pipe tally vision system may be positioned on a drilling rig. A drill string may be positioned within a wellbore using the drilling rig. The drill string may be observed with the pipe tally system during a wellbore operation. A pipe tally database may be generated by the pipe tally system based on the observations of the drill string made by the pipe tally system and observations may be made as the drill string is moved into or out of the wellbore.

Abstract: An assembly for a torque-transmitting connection in an inner pipe string of a dual-member drill string is formed from a collar, a retaining ring, and an inner pipe member. An endless internal groove having adjacent shallow and deep sections is formed in the collar. Formed in the inner pipe member, an external grooved region is situated in adjacent relationship with the internal groove. The retaining ring, situated within the grooves, resists disconnection of the collar from the inner pipe member. When the assembly is subjected to an axial force that might otherwise tend to pull it apart, the retaining ring resists the tendency by wedging between the bottom of the shallow section of the internal groove and the crest of the external groove.

Abstract: A downhole tool comprising a body and a sealing element, wherein the sealing element is composed of a composite material comprising a rubber and a degradable acrylate-based polymer, and wherein at least a portion of the degradable acrylate-based polymer degrades when exposed to an aqueous fluid in a wellbore environment.

Abstract: A lipless tubular oil seal assembly uses a tubular type of seal. The new seals create only enough pressure against the casing to provide an adequate seal under most conditions and the small amount of oil that would leak by on the roughest well casing surfaces acts as a lubricant. The new seal has no lip so it cannot turn under and get stuck in the well casing like a cup seal, even under the roughest conditions.

Abstract: The invention relates to a method and apparatus for avoiding fluid loss during installation of a lower completion in an open hole oil, gas or water well. A lower completion assembly 3, 33 comprising tubing with production perforations, for example in a sand screen, is run into the well on drill pipe 8, 38. The lower completion 3, 33 is hung from a packer 4, 34, together with a wash pipe 9, 39 which extends through the inner of the lower completion 3, 33. At the proximal end of the lower completion is a seal 15, 45 through which the wash pipe 9, 39 extends. An aggressive breaker fluid is circulated through the wash pipe, through a float shoe 11, 41 at the end of the completion. Once circulation is completed, the aggressive breaker removes all filter cake from the formation in 30 minutes. The wash pipe 9 is withdrawn but, because the wash pipe 9 seals against the seal 14 as it is withdrawn, fluid is not lost into the formation via the lower completion.

Abstract: An earth-boring tool may comprise at least one cavity formed in a face thereof. At least one retractable pad residing in the at least one cavity may be coupled to a piston located at least partially within the at least one cavity. Additionally, a valve may be positioned within the earth-boring tool and configured to regulate flow of an incompressible fluid in contact with the piston through an opening of a reservoir. A cartridge may comprise a barrel wall defining a first bore, and a piston comprising at least one retractable pad positioned at least partially within the first bore. The barrel wall and the piston may define a first reservoir within the first bore, and a valve may be positioned and configured to regulate flow through an opening to the first reservoir. Related methods and devices are also disclosed.

Abstract: A vibration assembly of a drilling tool for drilling a wellbore penetrating a subterranean formation is disclosed. The downhole drilling tool includes a drill string, a bottomhole assembly and a drill bit. The vibration assembly includes a housing (334a) operatively connectable to the bottomhole assembly, expanders (122) positionable in the housing and radially extendable and retractable thereabout, and a radial vibrator (comprising mandrel (446), enlarger spring (48), cam portion (458) and vibration spring (570) operatively connectable to the expanders to vibrationally move the expanders against the wall of the wellbore whereby movement of the downhole tool is altered during drilling.

Abstract: A downhole pump including a mandrel defining a passageway therein and defining an inlet to the passageway that allows fluid ingress to the passageway from an environment outside of the mandrel and defining an outlet from the passageway that allows fluid egress from the passageway, a blade extending from the mandrel and sized for a close clearance fit in a tubular into which the pump is intended to be used, the blade upon rotation of the mandrel causing a fluid flow regime in a direction across the blade, into the inlet, through the passageway, out of the outlet and back to the blade.

Abstract: A well cement management system includes a well support base for urging below a bottom of a body of water, a wellbore tubular component disposed through the well support base; and a filling medium top up line in fluid communication with a space defined by an interior of the wellbore tubular component.

Abstract: Real time monitoring of a predetermined set of downhole parameters related to downhole status of a well comprises deploying a casing module as part of a casing string to a first predetermined location downhole, the casing module comprising a set of components, deploying a tubing module as part of a tubing string, typically within the casing string, where the tubing module comprises a set of tubing module components, and deploying a power generator to a distance within the well, typically as part of the tubing string and typically as part of the tubing module, and operatively connecting the power generator to the tubing module to effect power transmission from the power generator, generated downhole, to the tubing module and from the tubing wireless power transfer transmitter to the casing module.

Abstract: A selective stimulation system includes coiled tubing in which a distributed sensor array is disposed. The distributed sensor array is to measure hydrocarbon production parameters along the distributed sensor array in a wellbore of a formation. A selective fracturing apparatus is coupled to the coiled tubing. The selective fracturing apparatus is to fracture selected areas of the wellbore. A controller is coupled to the distributed sensor array and controls operation of the selective fracturing apparatus based on the measured hydrocarbon production parameters.

Abstract: An earth-boring tool includes a shank. The shank may include a central bore extending partially through the shank. An end-cap may be disposed within the central bore, and the end-cap may include a first flange, a second flange, and a body portion extending between the first flange and the second flange. An annular chamber may be defined between the body portion of the end-cap and an interior wall of the central bore of the shank. At least one strain gauge may be secured to an outer surface of the body portion of the end-cap. At least one stain gauge may be secured to a cap portion welded over a recess formed in the earth-boring tool.

Abstract: This invention is an oil-well pumping unit. It may be used for production of stratum fluids from marginal well stock at large depths. The invention increases reliability and improves power performance by including a fully integrated plunger pump fitted with discharge valves and a gravity gas separator, non-return valves, and a coupling for fastening the oil-well pumping unit to flow tubing. The downhole linear motor is mounted below the plunger pump. A slider upstroke damper and a slider down-stroke damper, as well as a telemetry unit, are mounted below the linear motor. The unit is linked to a ground-based control unit through a neutral wire interconnected with linear motor windings. The ground-based control unit may be designed as a three-phase high-frequency inverting controller and output transformer, and is connected to the downhole linear motor through an insulated three-wire cable.

Abstract: A gas injection optimization system is provided. The optimization system is designed to control a volume of gas injected into a wellbore in connection with an intermittent gas-lift system. The system includes a gas storage vessel residing at the surface, and a series of pressure transducers. The system additionally includes a controller configured to receive pressure value signals from the transducers, and in response, send control signals that cyclically open and close a well flow control valve at the surface. When the well flow control valve is closed, compressible fluid is injected into the gas storage vessel to load the vessel. When the well flow control valve is opened, a volume of injection gas (VR) is released from the vessel and is injected into a wellbore annular region to push a volume of fluids (VS) residing in the tubing string to the surface. A method for optimizing gas injection into a wellbore in support of an intermittent gas-lift operation is also provided herein.

Abstract: An annulus isolation valve assembly being part of a tubing hanger assembly, with a valve bore having a fluid mouth, and a sliding sleeve which is arranged in the valve bore and which has an axially extending sleeve bore. The sliding sleeve has a radially facing sleeve port. A hydraulic piston is functionally connected to the sliding sleeve. The sliding sleeve comprises an axially facing fluid port which is in fluid communication with the radially facing sleeve port.

Abstract: Apparatus and methodologies for cleaning a subterranean wellbore are provided. More specifically, a cleaning assembly and method of use is provided, the assembly being sealingly positioned within the wellbore and comprising a pump and a fluid control port for directing pressurized fluids downhole to clean the wellbore.