Chevron U.s.a. Inc.

Edward Shintaro Nakajima

Hugh Miller Thompson

Sid A Mebarkia

Antonio Carlos Falcao Critsinelis

Noah Teichmiller

Estela Gonzalez

Jimmie Dean Adkins

Daniel Christopher Kefford

Jack Darryl Payne

Jonathan Bowman

Jarred Christopher Sharp

Scott Oren Crook

Jean Michael Thibodeaux

Disclosed are systems and methods for protecting subsea pipeline from damage caused by excessive stress or fatigue loading caused by geo-hazards, and environmental and operating loads. The systems and methods utilize lifting buoyancy modules capable of being attached to a section of subsea pipeline to lift the subsea pipeline off the seabed to a predetermined height over a predetermined length upon being activated by a planned or unplanned triggering event.

Systems and methods for protecting subsea pipeline from excessive stress or fatigue loading

A subsea removable flex joint laydown tool is described herein. The tool can include a body having a first portion and a second portion hingedly coupled to the first portion. The tool can also include a flex joint coupling feature disposed on an inner surface of the first portion and the second portion toward a proximal end of the body, where the flex joint coupling feature is configured to couple with a first laydown tool coupling feature of a flex joint. The tool can further include a riser coupling feature disposed on the inner surface of the first portion and the second portion toward a distal end of the body, where the riser coupling feature is configured to couple with a second laydown tool coupling feature of a riser. The tool can also include at least one laydown tool coupling feature movably coupled to the first portion.

Subsea removable flex joint laydown tool

An actuator assembly for a subsea remotely operated lifting shackle for use in a subsea field operation is described herein. The actuator assembly can include an actuator body and an actuator coupled to the actuator body. The actuator assembly can also include at least one docking receptacle coupling feature operatively controlled by the actuator, where the at least one docking receptacle coupling feature removably couples, using the actuator, to at least one first actuator assembly coupling feature of a mounting adapter of the lifting shackle. The actuator assembly can further include at least one pin coupling feature operatively controlled by the actuator, where the at least one pin coupling feature removably couples, using the actuator, to at least one second actuator assembly coupling feature of the mounting adapter of the lifting shackle.

Subsea remotely operated lifting shackle

Disclosed is an apparatus for sealing and severing a subsea pipe adapted to convey fluids, e.g., hydrocarbons, and systems and methods using such apparatus. The apparatus includes a housing adapted to attach to the pipe, a piercing tool for providing an opening in the pipe at a predetermined location and a mechanism for establishing fluid communication between a source of sealant material and space within the pipe adjacent the opening in the pipe, and a cutting mechanism for cutting the pipe. Methods disclosed include piercing the pipe to form an opening, injecting sealant material through the opening into the pipe to form a fluid-tight seal, and cutting the pipe through the seal to form sealed cut ends.

Apparatus, system and methods for sealing and severing a subsea pipeline

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Sugar Land, TX, United States of America

Edward Shintaro Nakajima