Oilfield optical data transmission assembly joint
AssigneeSchlumberger Technology Corporation
InventorKalim Ullah
Life of this patent
Estimating the term…
Abstract
A joint for disposing between a rotatable drum and stationary surface equipment. The joint serves as a channel through which optical data from a well access line may be routed through the rotating drum and to the stationary equipment for processing. The optical data may be routed in a manner that allows for multi-fiber transmissions with one fiber dedicated to uphole transmissions and another dedicated to downhole transmissions. This is achieved through embodiments of the joint in spite of the separate optical channels involved sharing the same central axis to allow for data transfer between moving and stationary joint components.
Claims11
An oilfield optical data transmission assembly joint, the joint comprising:
- a rotatable coupling for receiving an optical termination of a rotatable optical fiber, the fiber configured for carrying the data, wherein a chamber is located on a side of the rotatable coupling offset from the central axis, wherein the chamber is configured to receive a cable bundle that includes the rotatable optical fiber and electrical lines, and wherein an electrical junction is located on the coupling and configured to receive the electrical lines;
- and
- a stationary housing coupled to said rotatable coupling, said stationary housing having an optical termination of a stationary optical fiber for interfacing the rotatable optical termination to allow communication therebetween.
An oilfield assembly comprising:
- a rotatable drum;
- a well access line disposed about said drum;
- and an optical data transmission joint simultaneously coupled to said rotatable drum and stationary equipment for real-time processing of optical data from said line during rotation of said drum, wherein the optical data transmission joint comprises a rotatable coupling for receiving an optical termination of a rotatable optical fiber, the fiber configured for carrying the data, wherein a chamber is located on a side of the rotatable coupling offset from the central axis, wherein the chamber is configured to receive a cable bundle that includes the rotatable optical fiber and electrical lines, and wherein an electrical junction is located on the coupling and configured to receive the electrical lines;
- and a stationary housing coupled to said rotatable coupling, said stationary housing having an optical termination of a stationary optical fiber for interfacing the rotatable optical termination to allow communication therebetween.
Dependencies are inferred from the claim text.