Abstract: A method for determining a rotational frequency of a positive displacement motor positioned in a downhole portion of a drill string, the method including: providing at least one measurement device for measuring a property of a part of the drill string; providing a processor for processing a signal output by the at least one measurement device; operating the positive displacement motor whilst the part of the drill string is in a non-driven state; receiving the signal at the processor; determining, using the processor, a frequency spectrum of the signal; and determining the rotational frequency of the positive displacement motor by: identifying a peak in the frequency spectrum in a pre-determined frequency range associated with an expected rotational frequency of the positive displacement motor; and/or identifying a peak in the frequency spectrum having a pre-determined peak width associated with an expected rotational frequency of the positive displacement motor.

Abstract: A method including determining a concentration of one or more components of a fluid during a wellbore servicing operation of a wellbore, and providing a trigger signal to actuate mechanical operation of a tool based on the determining of the concentration of the one or more components. The determining of the concentration of the one or more components includes contacting a sample of the fluid with a microelectromechanical system (MEMS) device to provide a sample response indicative of the concentration of the one or more components.

Abstract: An electrical submersible pump (“ESP”) has a seal member that carries a packer. A retainer initially retains the packer in a fixed axial position with the seal member as the ESP is lowered into a well conduit. The retainer is releasable after the packer has been set in the conduit in response to a thermal growth axial force on the seal member, enabling relative axial movement between the seal member and the packer. The seal member has annular seal rings that extend over an axial length on the tubular member that is greater than an axial length of the bore of the packer.

Abstract: A platform apparatus positionable close to a surface element to allow an operator to access production tubing being withdrawn from the surface element. The platform apparatus can be positioned in close proximity to a surface element of a well to permit an operator access to production tubing and cable secured to the production tubing. The cable can be separated from the production tubing and directed beneath a primary oil rig platform. The production tubing can be scanned with an electronic scanning device after the cable has been separated from the production tubing as the production tubing is being removed from the well. The platform apparatus can be positioned in close proximity to a surface element of a well being serviced by a pole unit to permit an operator access to production tubing. The production tubing can be scanned with an electronic scanning device as the production tubing is being removed from the well.

Abstract: A top latch-in plug includes a housing having a bore and a transitionable seal. The transitionable seal seals the bore of the housing when in a first configuration, and the transitionable seal unseals the bore when in a second configuration. The transitionable seal is triggerable to transition from the first configuration to the second configuration. A casing floatation system includes a casing having a pre-load collar and a landing collar; and a lower bottom latch-in plug. The lower bottom latch in plug includes a catch mechanism compatible with the pre-load collar; and a landing mechanism compatible with the landing collar.

Abstract: There is provided a system for analyzing and controlling a productivity of a drilling apparatus. The exemplary system includes a processor and a memory including instructions that cause the processor to perform certain operations. The operations can include receiving information from a control system of the drilling apparatus and determining a key performance metric based on the information. The operations can further include performing a comparison between the key performance metric and at least one other key performance metric. Furthermore, the operations can further include instructing, based on the comparison, the control system to alter the productivity of the drilling apparatus.

Abstract: Provided, in one example, is a wellbore tool. The wellbore tool, in this example, includes a casing having three or more pads located on an outer diameter thereof, at least one of the pads having a pocket therein. The wellbore tool of this example additionally includes one or more batteries and one or more sensors located within the pocket, and one or more additional components coupled to the one or more sensors located within an inner diameter of the casing.

Abstract: A valve seal assembly that provides for external pressure to be introduced to an energized seal of a valve, and compress the seal against a gate with enough force to block any paths where sand and chemicals would otherwise travel into valve body cavity or void. The external pressure introduced through pressure fitting makes the parts move like piston forcing the parts to compress together eliminating the machined tolerances or gaps required for the gate to be opened or closed. The compression can be provided by hydraulic pressure devices through injection ports. A separate valve seal assembly can be provided for each face of the gate and both assemblies can be activated when the fluids are flowing (open position) and an upstream valve seal assembly activated when the gate is in a closed position.

Abstract: Provided are tractor wheels for a downhole tractor. An example tractor wheel comprises a series of continuous springs disposed on the circumference of the tractor wheel, wherein the individual continuous springs in the series of continuous springs are separated by a gap, and a void disposed on the interior of the tractor wheel and that is continuous about the circumference of the tractor wheel.

Abstract: A method for monitoring pitting corrosion of a production tubing in a hydrocarbon well under downhole conditions during a production process using a coupon segment, the method comprising the steps of placing the coupon segment in the hydrocarbon well at a placement depth, the coupon segment is exposed to produced fluids and comprises an outer layer, an inner layer, and a hollow middle layer comprises a tracer fluid operable to leak into the produced fluids when pitting corrosion penetrates the outer layer, operating the production process in the hydrocarbon well such that produced fluids flow through the production tubing to a surface of the hydrocarbon well and wherein the produced fluids contact the coupon segment such that pitting corrosion occurs on the coupon segment; obtaining a sample of the produced fluids at the surface of the hydrocarbon well; and measuring an amount of the tracer fluid in the sample.

Abstract: A system can include an annular restrictor connected in a tubular string. The annular restrictor restricts flow through an annulus formed between the tubular string and a wellbore. Restriction to the flow through the annulus biases the tubular string into the wellbore, and fluid in the wellbore displaces into the tubular string and/or a formation penetrated by the wellbore. A method can include connecting an annular restrictor in a tubular string, and flowing a fluid through an annulus formed between the tubular string and a wellbore, thereby causing a differential pressure across the annular restrictor, the differential pressure biasing the tubular string into the wellbore. Another method can include connecting an annular restrictor in a tubular string, flowing a fluid through an annulus, thereby biasing the tubular string into a wellbore, and then causing the annular restrictor to no longer restrict flow through the annulus.

Abstract: The invention relates to a hydraulic device for in situ hermetic sealing of holes, cracks or leaks from joints that occur in underground production tubing used for the extraction of oil, gas or other fluids. In particular, the invention relates to a device comprising an assembly including four sections comprising various securing and anchoring means, and to the method for moving the device in order to detect and locate the site of the leak and to position the device inside the fluid production tubing, such that it remains fixed in place and hermetically seals the damaged section of the production tubing, allowing normal production flow to be resumed.

Abstract: Working an underground arcuate path around at least a portion of an obstacle with a casing extending into the underground arcuate path, connecting a rotating control device to the casing; and a Venturi device connected to the rotating control device.

Abstract: A method for evaluating a wellbore treatment includes inducing an acoustic wave in the wellbore prior to treatment. Acoustic energy propagating as pressure waves in the wellbore is detected. A formation in fluid communication with the wellbore is treated. The inducing an acoustic wave and detecting acoustic energy are repeated. A characteristic of the treatment is determined based on differences between the detected acoustic energy prior to the treating and at the end of the treating. In some embodiments, the observed differences are then also compared to differences observed in prior treatment stages to assess benefit of changes to treatment design. In some embodiments, the treatment design parameters are continuously iterated, adjusted, and improved to maximize the contribution to production of all subsequent stages in same or any other well.

Abstract: Systems and methods for multi-lateral wellbore construction and stimulation from cased parent wellbores. Methods and apparatus are provided to facilitate the creation of casing exit openings in the casing of parent wellbores. Methods and systems are provided for azimuthally and longitudinally aligning drilling assemblies through openings in a parent wellbore casing are provided to allow for drilling multiple lateral wellbores extending outwardly from a parent wellbore. A method of stimulating one or more subterranean zones intersected by multiple lateral wellbores extending outwardly from one or more patent wellbores includes the steps of: simultaneously injecting a stimulation fluid into the lateral wellbores; and stimulating the zones intersected by the lateral wellbores in response to the stimulation fluid injecting step.

Abstract: A drilling assembly includes a power section with a housing that rotates in a first direction at a drill string rotation rate. An output rotates a drill bit through a transmission shaft in the first direction at a rotor rotation rate relative to the housing. A bent housing between the power section and the drill bit rotates in a second direction at a variable rotation rate relative to the power housing. The transmission shaft extends through the bent housing. A mechanical brake system adjusts the bent housing's variable rotation rate. The bent housing rotates relative to the wellbore in a rotary mode, but not in a sliding mode. The sliding mode maintains the drill bit's direction and inclination while the drill string rotates. In all modes, the drill bit's rotation rate is the sum of the drill string rate and the rotor rate relative to the power housing.

Abstract: A completion method for completing a well includes running of a second well tubular metal structure into the well to a position at least partly below a first well tubular metal structure, circulating cleaning fluid at a first pressure out through the second end to remove at least part of the mud, displacing cement at a second pressure down through the second well tubular metal structure into an annulus between the second well tubular metal structure and a wall of the borehole, pressurising the inside of the second well tubular metal structure to a third pressure above the first pressure and the second pressure breaking a breakable element in the valve assembly, which changes condition from the first condition to the second condition, further pressurising the inside of the second well tubular metal structure, expanding the expandable metal sleeve to abut the wall of the borehole.

Abstract: Systems and methods for drilling optimization of a subterranean well include securing a multifunction sub in line with a tubular string. A nozzle provides a fluid flow path from the central bore through a sidewall of the sub body, the nozzle oriented in a direction so that the fluid flow path directs a wellbore fluid from within the central bore in a direction uphole. A valve system can move between a closed position where the fluid flow path of the nozzle is closed, and at least one open position where the wellbore fluid can pass through the fluid flow path. A control system is operable to receive information and provide a signal to move the valve system. The tubular string is moved into a bore of the subterranean well and information is delivered to the control system to regulate the flow of wellbore fluid through the nozzle.

Abstract: A reaming tool includes a tool body having a longitudinal axis and an upper end opposite a lower end and at least one blade extending outwardly from the external surface of the tool body. The blade includes a rolling element defining the gauge of the reaming tool, and a blade surface arranged undergauge of the rolling element and comprising a cutting surface.

Abstract: A method of connecting or disconnecting a first tubular to a second tubular includes engaging the first tubular with a power tong; engaging the second tubular with a backup tong; and rotating the first tubular relative to the second tubular. The method also includes, while rotating, monitoring a distance between the backup tong and the power tong and comparing the distance to a first threshold value; and stopping rotation of the first tubular when the distance equals to the first threshold value. According to one embodiment, a tong assembly includes a power tong, a backup tong, a sensor configured to measure a distance between the power tong and the backup tong, and a controller configured to compare the distance to a threshold value.