Abstract: A pipe connection system for use in a well completion system includes an inner connector and an outer connector. The inner connector includes a tapered wall and multiple pin threads arranged along the tapered wall, wherein a pitch between projections formed by the multiple pin threads changes along an axial length of the pin connector. The outer connector is formed complementary to the inner connector along at least a portion of the outer connector.

Abstract: A tubular connection includes a tubular joint including a pin with a first pin thread having a first pitch and a second pin thread having a second pitch, and also includes a connector that includes a box with a first box thread having the first pitch and a second box thread having the second pitch. The connection also includes an elastomeric seal ring comprised of a material that swells in the presence of hydrocarbons. Upon make-up of the connection, the first pin thread engages with the first box thread, the second pin thread engages with the second box thread, and the elastomeric seal ring is disposed around the tubular joint between the first pin thread and the second pin thread and forms a metal-to-elastomer seal between the tubular joint and the connector.

Abstract: A threaded connection includes a first tubular member having a box end defining an internal thread profile, and a second tubular member having a pin end defining an external thread profile threadably engageable with the internal thread profile of the box end. The external thread profile includes a first section that extends at a first taper angle relative to a longitudinal axis of the threaded connection, a second section extending from the first section at a second taper angle relative to the longitudinal axis, and an intermediate shoulder provided at a transition between the first and second sections and engageable with a corresponding intermediate shoulder provided on the internal thread profile. A cross-sectional area of the pin end increases at the intermediate shoulder.

Abstract: A threaded connection includes a first tubular member having a pin end defining an external thread profile, and a second tubular member having a box end defining an internal thread profile threadably engageable with the external thread profile of the pin end. At least one of the external and internal thread profiles includes a first section that extends at a first taper angle relative to a longitudinal axis of the threaded connection, a second section extending from the first section at a second taper angle relative to the longitudinal axis, and a third section extending from the second section at a third taper angle relative to the longitudinal axis. The second taper angle is greater than each of the first and third taper angles.

Abstract: A threaded connection includes a first tubular member having a pin end defining an external thread profile, and a second tubular member having a box end defining an internal thread profile threadably engageable with the external thread profile of the pin end. At least one of the external and internal thread profiles includes a first section that extends at a first taper angle relative to a longitudinal axis of the threaded connection, a second section extending from the first section at a second taper angle relative to the longitudinal axis, and a third section extending from the second section at a third taper angle relative to the longitudinal axis. The second taper angle is greater than each of the first and third taper angles.

Abstract: A tubular connection includes a tubular joint including a pin with a first pin thread having a first pitch and a second pin thread having a second pitch, and also includes a connector that includes a box with a first box thread having the first pitch and a second box thread having the second pitch. The connection also includes an elastomeric seal ring comprised of a material that swells in the presence of hydrocarbons. Upon make-up of the connection, the first pin thread engages with the first box thread, the second pin thread engages with the second box thread, and the elastomeric seal ring is disposed around the tubular joint between the first pin thread and the second pin thread and forms a metal-to-elastomer seal between the tubular joint and the connector.

Abstract: An uphole section has a first diameter. A midhole section has a second diameter that is larger than the first diameter. The midhole section is attached to the uphole section prior to installation into a wellbore. A downhole section has a third diameter that is smaller than the second diameter. The downhole section is attached to the midhole section prior to installation into the wellbore.

Abstract: Tubular coupling assembly with modified buttress thread includes a coupling member to couple two pin connections. The coupling member includes an outer surface and an inner surface opposite the outer surface, which can seal to surfaces of the two pin connections. The inner surface includes a first tapered axial portion extending from a first end of the coupling member towards a center of the coupling member. The inner surface includes a second tapered axial portion extending from a second end of the coupling member towards the center of the coupling member. The coupling member includes a shoulder portion connecting the first tapered axial portion and the second tapered axial portion. Regions of the shoulder portion that connect to the first tapered axial portion and to the second tapered axial portion have respective concave shapes to couple to respective convex shapes on each of the two pin connections.

Abstract: A corrosion resistant alloy, a method for making the corrosion resistant alloy, and a method for using the corrosion resistant alloy are provided. The corrosion resistant alloy includes 13-15 wt. % chromium, 5-7 wt. % nickel, and 2.5-4.5 wt. % molybdenum.

Abstract: A corrosion resistant alloy, a method for making the corrosion resistant alloy, and a method for using the corrosion resistant alloy are provided. The corrosion resistant alloy includes 13-15 wt. % chromium, 5-7 wt. % nickel, and 2.5-4.5 wt. % molybdenum.

Abstract: A stage cementing differential valve tool includes a body extending from a first end to a second end. The body may include one or more ports that may be configured to circulate a cement slurry, an external sleeve may be slidably coupled to an outer surface to the body, and an internal sleeve assembly may be slidably coupled to an inner surface to the body. The external sleeve and the internal sleeve assembly may be configured to open and close the one or more ports. The stage cementing differential valve tool may also include a sealing element extending from the outer surface of the body that is configured to swell in a downhole fluid environment and a plug having shoulders with break-off points that is configured to actuate the internal sleeve assembly.

Abstract: A modular reamer shoe for connection to an end of a tubular structure, such as a casing or liner, for deployment in a wellbore includes a body configured for connection to the tubular structure (casing or liner). The body includes a first section and an adjacent second section. The first section is connected to the second section such that torque can be transmitted between the first section and the second section. The first section defines a starter reamer defined by a plurality of first cutting elements and second cutting elements spaced from the first cutting elements. The reamer shoe has a plurality of actuatable blades disposed within the second area of the first section. The plurality of blades moves between extended positions and retracted positions. A nose is connected to the first section of the body. The second section is actuatable and can move in an axial direction so as to move the body, including the nose, in forward/rearward directions.

Abstract: A method includes initiating, by a computer system, a shear ram closure in a central bore of a blow-out preventer stack in response to a determination by the computer system of a loss of well control event and a determination by the computer system, based on a measurement received by the computer system from a joint locator sensor, that a tubing joint is not present within the central bore of the blow-out preventer stack. A pipe ram closure is initiated in response to a determination by the computer system that the shear ram has not fully closed after a predetermined time period since the initiation of the shear closure sequence.

Abstract: Techniques for operating a tubular running tool system include communicating, using a controller, one or more sensors coupled to a tubular running tool during a tubular running operation; identifying, with the controller, a first input from one or more sensors that is associated with a weight of one or more tubular members suspended from the tubular running tool during the tubular running operation; identifying, with the controller, a second input from the one or more sensors that is associated with a position of the tubular running tool relative to a reference location during the tubular running operation; based on at least one of the first or second inputs, determining, with the controller, an operation for the tubular running tool; and based on the determination, transmitting, with the controller, a signal to an actuator of the tubular running tool to perform the operation of the tubular running tool.

Abstract: Systems and methods include a computer-implemented method for the operation of an intelligent powerslip including interfacing with a powerlock system. Measurements from multiple sensors are monitored using an interface between a powerlock and a powerslip of a well. The measurements measure weights, pressures, and temperatures corresponding to use of the powerslip and a grappling device during operation of the well. The measurements from the multiple sensors are compared to pre-determined tolerances to verify that an appropriate engagement exists between the tubular, powerlock and the powerslip. In response to verifying the appropriate engagement and logic, either one of the grappling device or the powerslip can be released depending on the ongoing operation.

Abstract: A casing head support system (CHSS) for a casing head includes a casing head support unit (CHSU) having a tubular body with a support unit top end (SUTE) and a support unit bottom end (SUBE); a first conductor string extension joint coaxially fastened to the SUBE; and an internal load profile machined into an inner circumferential surface of the CHSU. The SUTE forms a coaxial connection with the casing head. The internal load profile supports a corresponding load shoulder on a conductor hanger. The CHSU contains a CHSU top preparation machined into the inner circumferential surface of the support unit. The CHSU top preparation is located at the SUTE. The CHSU top preparation mates with a corresponding casing head support unit running tool (CHRT) bottom preparation.

Abstract: A corrosion resistant alloy, a method for making the corrosion resistant alloy, and a method for using the corrosion resistant alloy are provided. The corrosion resistant alloy includes 13-15 wt. % chromium, 5-7 wt. % nickel, and 2.5-4.5 wt. % molybdenum.

Abstract: Techniques for operating a tubular running tool system include communicating, using a controller, one or more sensors coupled to a tubular running tool during a tubular running operation; identifying, with the controller, a first input from one or more sensors that is associated with a weight of one or more tubular members suspended from the tubular running tool during the tubular running operation; identifying, with the controller, a second input from the one or more sensors that is associated with a position of the tubular running tool relative to a reference location during the tubular running operation; based on at least one of the first or second inputs, determining, with the controller, an operation for the tubular running tool; and based on the determination, transmitting, with the controller, a signal to an actuator of the tubular running tool to perform the operation of the tubular running tool.