Weatherford/lamb, Inc.

Weatherford U.s., Inc.

Weatherford Technology Holdings, LLC

Thomas Koithan

David M. Haugen

Graham Ruark

John W. Newman

David Shahin

Graham Myles Ruark

John Newman

David Michael Haugen

Martin Liess

Aaron Dauphine

Thomas H Koithan

Doyle Boutwell

Rainer Ruehmann

Winfried Mollin

Lizabeth J Ly

Mark Chandler

Merlin Perry

John W Newman

A method of connecting a first threaded tubular to a second threaded tubular includes: engaging threads of the tubulars; and rotating the first tubular relative to the second tubular, thereby making up the threaded connection. The method further includes, during makeup of the threaded connection: detecting a shoulder position; and after detection of the shoulder position, monitoring for potential yielding of the threaded connection. The method further includes terminating the makeup according to: a first criterion in response to detection of the potential yielding; or a second criterion in response to absence of the potential yielding.

Shoulder yielding detection during tubular makeup

Embodiments of the present invention generally relate to a method for controlling the torque applied to a tubular connection. In one embodiment, a method of connecting a first threaded tubular to a second threaded tubular supported by a spider on a drilling rig includes engaging the first threaded tubular with the second threaded tubular; making up the connection by rotating the first tubular using a top drive; and controlling unwinding of the first tubular after the connection is made up.

Method of controlling torque applied to a tubular connection

The present invention generally provides methods and apparatus for connecting threaded members while ensuring that a proper connection is made, particularly for premium grade connections. In one embodiment, a method of connecting threaded tubular members for use in a wellbore or a riser system is provided. The method includes the acts of operating a power drive unit, thereby rotating a first threaded tubular member relative to a second threaded tubular member; measuring the rotation of the first threaded tubular member; and compensating the rotation measurement by subtracting a deflection of at least one of: the power drive unit, and one of the tubular members.

System and method for deflection compensation in power drive system for connection of tubulars

A method and apparatus for connecting threaded members while ensuring that a proper connection is made. In one embodiment, the applied torque and/or rotation are measured at regular intervals throughout a pipe connection makeup. When a shoulder contact is detected, a predetermined torque value and/or rotation value is added to the measured torque and/or rotation values, respectively, at shoulder contact and rotation continued until this calculated value(s) is reached.

Methods and apparatus for applying torque and rotation to connections

An apparatus and method including a load cell mounting apparatus movably mounted on a load cell which applies either of two types of loads to the load cell as one type of load. The apparatus and method for applying either a tensile load or a compressive load to a load cell as a tensile load; and a tong assembly with such apparatus or in another aspect, for applying either a tensile load or a compressive load to a load cell as a compressive load; and, a tong assembly with such apparatus.

Tong load cell assembly

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Houston, TX, United States of America

Graham Myles Ruark