Abstract: Aspects of the present disclosure relate to methods of coating a coiled tubing string, methods of conducting tubing operations using a coated tubing string, and associated apparatus thereof. In one implementation, a method of conducting a coiled tubing operation, includes forming a tubing string. The tubing string has a central annulus, an inner surface, and an outer surface, and the tubing string is formed from a metallic material. The method also includes coiling the tubing string onto a spool, and moving a coating into the central annulus. The method also includes curing the coating onto the inner surface of the tubing string to form a layer of the coating on the inner surface of the tubing string.

Abstract: A modular fluid-carrying manifold apparatus is provided for use in hydraulic fracturing blenders and other devices. A manifold can include one or more interchangeable sections. Each section may have a flat front face with ports cut into the front face. Components such as valves and hammer unions are directly removably connected to the ports via bolts. This eliminates the need for welded-on piping. Removable, wear-resistant inserts can be located in the ports. The removable components may be considered consumable and replaced when worn out.

Abstract: A system including an elevator to move a tubular, the elevator including two or more remotely operable latches that can configure the elevator to handle various tubular diameters. Each jaw can include a locking mechanism that engages a portion of the housing adjacent a spacer ring in the elevator when the first jaw is in the engaged position and configured to transfer a closing force to the housing. A portion of the latches can be laterally offset from each other and another portion can overlap adjacent latches. The elevator can be explosive (EX) Zone 1 certified with an electronics enclosure contained within a sealed chamber. The elevator can use rotary actuators to operate the latches and rotate the housing of the elevator. The elevator can use a circular pressure sensor to determine weight of a tubular.

Abstract: 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: A first aspect of the invention provides a gas or oil well tubing having an annular packer mounted thereon, wherein the annular packer is formed from an eutectic alloy. By prefabricating the annular packer on the tubing it can be placed in situ from the outset and thus can be active by melting at any time to form a eutectic seal quickly and easily. An annular packer with by-pass conduits is also provided to enable cement to be pumped past the annular packer when it is in situ. The annular packer is further provided with conduit clearance means to clear cement from within the conduits.

Abstract: A drilling machine including: a lower unit, an upper unit, a mast, a rotary, a drilling tool connected to a telescopic Kelly bar and a blocking system suitable for blocking the rotation of the upper unit relative to the lower unit. The blocking system includes: a cylinder revolvingly mounted on a frame of the lower unit, a plurality of vises mounted on the frame of the lower unit in such a way to block the cylinder integrally with the lower unit, and an actuator mounted in the upper unit to actuate a blocking pin that is engaged in a hole of a bushing of a flange that protrudes radially outwards from said cylinder in such a way to integrally block the cylinder to the upper unit.

Abstract: A chemical capsule joint having a chemical capsule filled with a chemical that is to be released into a casing string to which the chemical capsule joint is deployed in a wellbore after an end of the chemical capsule joint if drilled up. The chemical capsule joint allows continuation of cementing operation until an end of the chemical capsule joint is drilled up to release the chemical from the chemical capsule in the chemical capsule joint. The chemical is them freed from the chemical capsule and allowed to leach into production fluids in the casing string to which the chemical capsule joint is deployed in a well bore.

Abstract: A well pressure control device includes a housing having a through bore. A pressure chamber has a piston movably disposed therein. The pressure chamber is coupled at one end to the housing transversely to the through bore. The actuating piston defines a pressure source side and a through bore side of the pressure chamber. A fluid pressure source is coupled to the other end of the pressure chamber. A closure element is disposed in the pressure chamber on the through bore side. At least one locking element is coupled to the pressure chamber at an axial position along the pressure chamber on the through bore side.

Abstract: Systems and methods of surface logging a well use a plurality of polymeric taggants distinguishable from each other. The systems and methods can include adding each of the plurality of polymeric taggants in a repeating sequence to a circulating drilling fluid while drilling the well and taking a sample drill cuttings carried by the circulating drilling fluid. The systems and methods can also include measuring concentrations of individual polymeric taggants attached to the drill cuttings in the sample and identifying a depth associated with the sample based on the measured concentrations of individual polymeric taggants and on the sequence.

Abstract: A horizontal directional drilling method includes operation of a HDD machine to power a drill string terminating at a drill head to create an underground borehole extending at least partially horizontally between an entry point and an exit point. A utility line and a pair of insulated wires are attached to the drill string at the exit point. An observation device is also attached to the drill string, and the observation device is connected with an uphole module via power line communication (PLC) over the pair of insulated wires. The horizontal directional drilling machine performs a pullback of the drill string, with the utility line, the pair of insulated wires, and the observation device connected thereto, back toward the entry point. Data from the observation device are displayed on the uphole module during pullback of the drill string.

Abstract: An improved typelog alignment for automated or interactive geosteering may use multi-stage penalized optimization.

Abstract: The present disclosure relates generally to downhole tubulars, and more particularly, to tubular expanders for downhole tubulars that have a detachable expansion ring, which can be detached from the tubular expander in the event that full expansion cannot be achieved or the tubular expander should get stuck in the downhole tubular being expanded. The detachable expansion ring may be attached to an end of an expansion cone that is disposed within a main body of the tubular expander. Tubing hangers are one exemplary downhole tubular device which can be expanded using the tubular expander in accordance with the present invention.

Abstract: A method for synchronizing downhole tractor and surface winch deployment includes inserting into a wellbore a tool string connected to a wireline, where the tool string includes a variable speed tractor. The method also includes deploying the tractor, and deploying the wireline from a winch. The method further includes dynamically monitoring, by a device disposed downhole, a wireline tension as an indicator of synchronization of the tractor and winch.

Abstract: A chemical treatment assembly can include a section including a pressure containment valve that selectively permits and prevents fluid communication with a flow passage in the section, and another section including a pressure containment valve that selectively permits and prevents fluid communication with a flow passage in the section. The pressure containment valves are closed in response to disconnection of the sections. A method of containing pressure in sections of a chemical treatment assembly can include installing a pressure containment valve in each of the sections, the pressure containment valves being configured to close in response to disconnecting the sections. Another chemical treatment assembly can include an outer housing, a flow passage extending longitudinally through the outer housing, a chemical treatment positioned in the flow passage, and a pressure containment valve that selectively permits and prevents fluid communication with the flow passage through the pressure containment valve.

Abstract: A box by pin perforating gun system using swaged down gun bodies, a removable cartridge to hold a detonator and switch, and an insulated charge holder as an electrical feed-through.

Abstract: A mobile service rig includes an onboard rechargeable electric power storage system (e.g., a battery, supercapacitor, etc.) for powering the rig's hoist and drive wheels. Under battery power, the rig travels overland to service wellbores at various wellsites. Once at a wellsite, a pumpjack at the site is de-energized, and the hoist proceeds to remove and reinstall wellstrings (e.g., tubing and sucker rods). While the pumpjack is de-energized, the rig's onboard rechargeable electric power storage system taps into the electric power source normally used for the pumpjack. The drive wheels and hoist can drain the rig's rechargeable electric power storage system, but the pumpjack's electric power source can gradually recharge it while the rig is servicing the wellbore.

Abstract: Some methods of determining a tubing and casing annulus fluid leak of a well include receiving pressure information and depth information from three or more pressure sensors in fluid communication with a fluid of the tubing casing annulus. Some methods include receiving at least three baseline pressure gradients and determining at least three current pressure gradients based on the pressure information and depth information of the three or more pressure sensors. Some methods include determining pressure differences between the at least three baseline pressure gradients and the at least three current pressure gradients. Some methods include determining whether any of the pressure differences are above a pressure threshold, and responsive to determining that at least one of the pressure differences is above the pressure threshold, determining a fluid level of the fluid within the tubing casing annulus based on the pressure differences.

Abstract: A mobile service rig includes an onboard rechargeable electric power storage system (e.g., a battery, supercapacitor, etc.) for powering the rig's hoist and other equipment used for repairing or servicing a well at a wellsite. In some examples, the rechargeable electric power storage system is recharged by an electrical power grid that is normally used for powering a pumping unit at the well. Some examples of the mobile service rig include a diesel powered charging generator for backup power. In some examples, an auxiliary braking generator coupled to the rig's hoist provides regenerative braking to help recharge the electric power storage system. Some examples of the mobile service rig comprise a trailer hitched to a diesel powered tractor.

Abstract: A rotary drill bit includes movable gauge elements biased to protrude radially through a circumferential engagement surface of a gauge pad. The gauge elements are retractable to protrude a lesser distance against the bias of a biasing mechanism. Fluid chambers are defined adjacent the gauge elements, and fluid is permitted to be bled into and out of the fluid chambers to delay and slow the retraction and extension of the gauge elements. During straight drilling operations, the biasing mechanisms maintain the gauge elements in an extended position providing stability to the drill bit. When a steering force is applied to the drill bit, the gauge elements retract slowly as fluid is bled from the fluid chambers. As the gauge elements rotate with the drill bit, the retracted configuration may be maintained as gauge elements disengage the geologic formation on a side of the drill bit opposite the steering direction.

Abstract: A sucker rod pumping unit includes a surface beam pivotally coupled to a post assembly mountable on a multi-well pad; two horseheads, each of the two horseheads connected to a particular end of the surface beam, each of the two horseheads including a counterweight to the other of the two horseheads; two sucker rod assemblies, each of the two sucker rod assemblies attached to one of the two horseheads; and one rotary machine driveably coupled to the two sucker rod assemblies through the surface beam.