Abstract: An example of an apparatus is provided. The apparatus includes a magnetic core to be inserted into a borehole to a formation. The apparatus further includes a first coil wound about the magnetic core. In addition, the apparatus includes a first current supply to generate a first current to run through the first coil. Furthermore, the apparatus includes a first controller to control the first current supply. The first controller is to oscillate the first current to generate a magnetic field in the formation. Heat is to be generated in the formation via induction.

Abstract: Systems and methods for a guided extend reach tractor are disclosed. The method includes installing a packer and a tractor string operatively connected to the packer in a borehole; lowering the guided extend reach tractor into the borehole; supplying power, via a power source, to the guided extend reach tractor; attaching the guided extend reach tractor to the tractor string using an electromagnet; and clamping the guided extend reach tractor onto the tractor string. The method further includes activating helical bars to propel the guided extend reach tractor forward or backward in the borehole; performing well intervention operations in the borehole; and extracting the guided extend reach tractor from the borehole.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump, via a first portion of the recirculation circuit, to an inlet of the fluid pump via a second portion of the recirculation circuit. The control system may include a control valve and a choke valve in the recirculation circuit. The control system may include a controller configured to identify, based on a differential pressure that is based on a first pressure of the fluid in the first portion and a second pressure of the fluid in the second portion while the control valve is closed, a position for the choke valve that is to result in a flow velocity of the fluid through the control valve that is below a threshold, and configured to cause actuation of the choke valve in accordance with the position.

Abstract: A hydraulic fracturing system for fracturing a subterranean formation is disclosed. In an embodiment, the system may include a plurality of electric pumps fluidly connected to a well associated with the subterranean formation and powered by at least one electric motor, and configured to pump fluid into a wellbore associated with the well at a high pressure so that the fluid passes from the wellbore into the subterranean formation and fractures the subterranean formation; at least one generator electrically coupled to the plurality of electric pumps so as to generate electricity for use by the plurality of electric pumps; and at least one switchgear electrically coupled to the at least one generator and configured to distribute an electrical load between the plurality of electric pumps and the at least one generator.

Abstract: A fluid sampling tool and method for fluid sampling in an ultra-tight or tight formation. The tool may include a packer assembly that includes one or more inflatable packers and one or more exhaust ports, a multi-chamber section that includes one or more sample chambers, and at least two storage sections that each contain a storage tank, wherein each storage tank holds a stimulation fluid. A method for performing a stimulation operation that includes disposing a fluid sampling tool into a well, moving the fluid sampling tool to a zone of interest, and isolating the zone of interest with a packer assembly on the fluid sampling tool. The method may further include performing a first pressure draw down and a first pressure build up, performing an injectivity test, and performing a sampling process.

Abstract: The invention allows improved planning and implementation of blasting operations. The location of a hand-held apparatus (200) is determined based on signaling received by a high-accuracy positioning unit (220). If the location corresponds with a location of a bore hole in a stored blasting plan, an electronic detonator selected by a user is identified based on its identifier read by a NFC reader (230) of the hand-held apparatus (200), and the stored blasting plan is updated with the hand-held apparatus (200) to indicate that the assigned electronic detonator has been set in the bore hole.

Abstract: A method for quantitative downhole surveillance of a multi-phase flow, comprising at least two phases of either oil, water or gas, in a petroleum well. The method comprising providing at least one shunt chamber (100) which comprises a flow phase separation section (130), a delay chamber (140), one or more outlet ports (122), at least one flow restrictor (126a, 128b) and a tracer release system (124) with one or more tracers. The method comprises separating a shunt flow in the shunt chamber into a low-density flow phase and a high-density flow phase; releasing at least one tracer into the tracer delay chamber, passing the separated flow phases through each flow restrictor and flushing out the phase flows with tracer into the local flow inside the well. The method comprises monitoring the tracers in the production flow and measuring the concentration of the one or more tracers.

Abstract: A method for a well intervention operation may be conducted on a wellbore having a subsurface safety valve in a tubular string therein with a wireline extending into the wellbore from a wellhead. The method may include deploying an opening sleeve tool into the wellbore; landing a top portion of the opening sleeve tool on the subsurface safety valve; forcing a gate valve of the subsurface safety valve with a tubular portion of the opening sleeve tool from a closed position to an open position; and conducting the well intervention operation.

Abstract: A wellbore material transfer system is disclosed, and comprises a downhole fluid conductor defining a downhole-conducting fluid passage, an uphole fluid conductor defining an uphole-conducting fluid passage, a flow controller for opening and closing the uphole-conducting fluid passage, and a completion disposed within a wellbore and defining a wellbore interval between the completion and the wellbore, the completion including selectively openable first and second flow communicators. While the flow communicators are open and the uphole-conducting fluid passage is closed, a subterranean formation zone may be fractured, and flow communication is absent, via the second flow communicator and the uphole-conducting fluid passage, between the wellbore interval and the surface.

Abstract: A system and method for supplying electric power to various pieces of fracturing equipment in a fracturing operation with gas powered generators. The system and method also includes switch gears, auxiliary trailers, transformers, power distribution panels, new receptacles, and cables to supply three-phase power to electric fracturing equipment. The switchgear in the power supply system is weatherproof and able to endure the wear and tear of mobilization. The novel system and method provide clean and quiet electricity to all the equipment on site.

Abstract: Apparatus for measuring the profile of a wellbore includes a cylindrical body having first and second ends threaded for connection in line with a drill string. A passage extends through the body between the first and second ends. A plurality of arms are pivotally coupled on an outer surface of the cylindrical body. Each of the arms is biased to pivot so as to move a free end thereof radially away from the outer surface of the body. The plurality of arms are angularly spaced apart around the cylindrical body and arranged in a plurality of tiers. Each of the tiers comprises three or more of the arms. The tiers are spaced apart axially from one another along the cylindrical body. Sensors are operable to directly or indirectly measure radial extension of each of the arms from the cylindrical body. A holding mechanism is operable to hold the arms in a retracted configuration and to selectively release the arms to pivot away from the cylindrical body.

Abstract: A stimulation tool for dislodging material from a perforation formed through a tubular disposed in a wellbore includes a main body formed at least in part from a material that is buoyant in a wellbore fluid, a ballast, a magnet, and a pressure pulse generator. The tool is configured to descend downhole by force of gravity when the ballast is attached and couple, by the magnet, to an interior surface of the tubular upon arrival at a downhole location proximate the perforation. When the tool is coupled by the magnet to the interior of the tubular, the tool transmits pressure pulses from the pressure pulse generator into the perforation, thereby dislodging material from the perforation. The tool de-couples from the interior surface and releases the ballast, thereby permitting the tool to ascend uphole, driven at least partially by a buoyant force exerted by the wellbore fluids.

Abstract: The invention relates to the technical field of oil and gas field development, in particular to a staged multi-cluster fracturing sliding sleeve system and method based on smart key label. The system includes at least one multi-cluster sliding correspondingly placed in each fracturing stage, an end sliding sleeve, and a smart key label. The method includes: step S1, performing fracturing stage by stage from a first stage to a last stage, placing the smart key label through a wellhead and pumping the smart key label to the target fracturing stage; step S2, opening the multi-cluster sliding sleeves of the current fracturing stage one by one through the smart key label, and finally blocking the smart key label in the end sliding sleeve when the multi-cluster sliding sleeve and the end sliding sleeve of the current fracturing stage are opened; and step S3, repeating the steps S1 and S2 until the fracturing operations of all the stages are completed.

Abstract: A perforation tool, and a bulkhead member for a perforation tool, are disclosed. The perforation tool has a loading tube, an initiator module, and a bulkhead member connected between the loading tube and the initiator module. The bulkhead member has a hollow body member with a central transverse plate having a central bore through the transverse plate along a longitudinal axis of the body member and an electrical conductor disposed in the central bore, the electrical conductor having a pin connection at a first end thereof and a box connection at a second end thereof.

Abstract: A drilling tip that is attached to a distal end surface of a tool main body of a drilling tool which is rotated around an axis and in which a striking force is applied to a distal end side in a direction of the axis. The drilling tip includes a tip main body in which a base end portion having a columnar shape and a distal end portion protruding from this base end portion to the distal end side are integrally formed. The distal end portion includes a curved convex surface-shaped portion protruding to the distal end side of the tip main body, and a projection portion protruding to the distal end side from a surface of the curved convex surface-shaped portion.

Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This position shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.

Abstract: An induced earthquake evaluation method for hydraulic fracturing activated faults includes obtaining an induced earthquake evaluation unit, cumulative injection equivalent energy, induced earthquake probability of fault type, induced earthquake probability of fault distance, hydraulic fracturing fluid diffusion capacity in fractured formation, new effective fault stress after fracturing, formation fluid pressure change rate and cumulative released equivalent energy. The probability of induced earthquake by hydraulic fracturing can be obtained. The induced earthquake possibility of each evaluation unit or single well under different stages of hydraulic fracturing, different construction injection methods and production conditions can be quantitatively evaluated. The method provides a quantitative result that can provide data support for optimizing hydraulic fracturing and reducing induced earthquake hazards.

Abstract: A rupture disc configured to fluidly seal a passageway. The rupture disc includes a base extending from a distal surface to a proximal end, and a central portion extending across the proximal end of the base. The central portion traverses a central axis defined by the base. At least one surface of the central portion, such as an outer surface or inner surface, includes a plurality of facets defined by a plurality of seams. The facets may include one or more flat surfaces and/or one or more conical surfaces. A rupture disc system for fluidly sealing a portion of a wellbore includes the rupture disc disposed within and extending across a housing central bore of a housing, with one or more sealing members engaging the rupture disc and an inner surface of the housing central bore to fluidly seal the housing central bore.

Abstract: Methods and equipment are provided for stimulating recovery of hydrocarbons from a subterranean formation traversed by a wellbore, which employ at least one self-resonating nozzle. Fluid under pressure is supplied to the at least one self-resonating nozzle to create a channel in a surface of the subterranean formation facing the at least one self-resonating nozzle. In embodiments, the equipment can be a downhole tool or completion equipment (such as a liner) that is deployed in the wellbore.

Abstract: A rotational continuous circulation system and methods includes a circulation sub having an internal bore extending along a central axis. The circulation sub has an uphole body having a reduced outer diameter along a downhole length of the uphole body. A central valve selectively opens and closes the uphole internal bore. At least one check valve is located within a sidewall of the uphole body to selectively allow fluid to flow into the uphole internal bore through the at least one check valve. A downhole body has an uphole portion circumscribing a downhole portion of the uphole body. A sleeve assembly circumscribes the reduced outer diameter of the uphole body. The uphole body and the downhole body are configured to rotate about the central axis independently from the sleeve assembly. A side-entry port of the sleeve assembly provides a fluid flow path from an exterior of the sleeve assembly to the at least one check valve.