公开(公告)号：US11162642B2

公开(公告)日：2021-11-02

申请号：US16604861

申请日：2018-04-05

Applicant: EQUINOR ENERGY AS

Inventor： Ketil Pettersen ,  Tor Kindsbekken Kjeldby

IPC: F17D1/17 ,  E21B43/01 ,  F15D1/02 ,  F15D1/00 ,  F15D1/06 ,  F04B9/08

Abstract: A method of starting up flow of viscous oil in a pipeline, wherein the pipeline has an inlet and an outlet and wherein the viscous oil is initially stationary within the pipeline, includes supplying water to a first section of the pipeline through an inflow control device; initiating a flow of viscous oil within the first section towards the outlet by pressurising the water; supplying water to a second section of the pipeline through a further inflow wherein the first section is closer to the outlet of the pipeline than the second section; and initiating a flow of viscous oil within the second section towards the outlet by pressurising the water.

公开(公告)号：US11846155B2

公开(公告)日：2023-12-19

申请号：US17794162

申请日：2021-01-12

Applicant: EQUINOR ENERGY AS

Inventor： Tor Kindsbekken Kjeldby

IPC: E21B17/01 ,  E21B34/00

CPC classification number: E21B34/00 ,  E21B17/01

Abstract: A system for liquid surge protection of a subsea riser having a horizontal portion on the seabed and a sag bend portion includes: a flexible tubing having a top end and a bottom end; a plurality of autonomous valves configured to permit liquid to pass through into the flexible tubing, wherein the autonomous valves are arranged between the top end and the bottom end of the tubing; and an inlet device coupled to the bottom end of the flexible tubing, wherein said inlet device is biased against a bottom wall the riser.

公开(公告)号：US11629586B2

公开(公告)日：2023-04-18

申请号：US16755459

申请日：2018-10-12

Applicant: EQUINOR ENERGY AS

Inventor： Alastair Buchanan ,  Ketil Pettersen ,  Tor Kindsbekken Kjeldby

IPC: E21B43/38 ,  E21B17/20 ,  E21B17/01 ,  E21B43/12 ,  E21B47/06

Abstract: A method of separating fluid phases in a well or riser. The method comprises: locating an inlet device of a flexible tubing at a substantially horizontal portion of the well or riser, wherein a portion of the flexible tubing extends into the well or riser and the flexible tubing terminates at the inlet device; biasing the inlet device against a wall of the well or riser; and extracting a stratified fluid phase from the well or riser through the inlet device and flexible tubing, wherein a shape of the inlet device is configured to match a shape of the wall.