Subsea well installation
AssigneeEquinor Energy AS
InventorsRagnar STOKKE, Kjell Einar ELLINGSEN
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Abstract
A subsea well installation is provided, comprising a first pipeline comprising a first valve arrangement and a second pipeline comprising a second valve arrangement. The first valve arrangement is connected to a first subsea well and the second valve arrangement is connected to a second subsea well. The first valve arrangement is connected to the second valve arrangement. The installation is arranged such that fluid can be routed from the first well to any of the first pipeline and second pipeline. Each valve arrangement may comprise three two-way ball valves. Also provided is a method of installing the subsea well installation and a method of operating the subsea well installation.
Claims36
A subsea well installation, the installation comprising a first pipeline comprising a first valve arrangement and a second pipeline comprising a second valve arrangement, wherein the first valve arrangement is connected to a first subsea well, wherein the second valve arrangement is connected to a second subsea well, wherein the first valve arrangement is connected to the second valve arrangement and wherein the installation is arranged such that fluid can be routed from the first well to any of the first pipeline and second pipeline.
A subsea well installation as claimed in any preceding claim, wherein the first pipeline comprises a first pipeline section connected inline of the first pipeline, and wherein the first valve arrangement is installed in the first pipeline section.
A subsea well installation as claimed in any preceding claim, wherein the second pipeline comprises a second pipeline section connected inline of the second pipeline, and wherein the second valve arrangement is installed in the second pipeline section.
A subsea well installation as claimed in any preceding claim, wherein the first valve arrangement is connected to the first subsea well with a first jumper, preferably a flexible jumper.
A subsea well installation as claimed in any preceding claim, wherein the second valve arrangement is connected to the second subsea well with a second jumper, preferably a flexible jumper.
A subsea well installation as claimed in any preceding claim, wherein the first valve arrangement is connected to the second valve arrangement with a third jumper, preferably a flexible jumper.
A subsea well installation as claimed in any preceding claim, wherein the installation is arranged such that fluid can be routed from the second well to any of the first pipeline and second pipeline.
A subsea well installation as claimed in any preceding claim, wherein the first pipeline further comprises a third valve arrangement and the second pipeline further comprises a fourth valve arrangement, wherein the third valve arrangement is connected to a third subsea well, wherein the fourth valve arrangement is connected to a fourth subsea well, wherein the third valve arrangement is connected to the fourth valve arrangement and wherein the installation is arranged such that fluid can be routed from the third well to any of the first pipeline and second pipeline.
A subsea well installation as claimed in any preceding claim, further comprising a landing structure comprising a carrier supporting the first and second pipelines, preferably wherein the landing structure comprises a support frame mounted on a suction anchor.
A subsea well installation as claimed in any preceding claim, wherein the installation does not comprise a cluster manifold.
A method of installing a subsea well installation, the method comprising deploying a first pipeline comprising a first valve arrangement, deploying a second pipeline comprising a second valve arrangement, connecting the first valve arrangement to a first subsea well, connecting the second valve arrangement to a second subsea well, and connecting the first valve arrangement to the second valve arrangement, wherein the installation is arranged such that fluid can be routed from the first well to any of the first pipeline and second pipeline.
Dependencies are inferred from the claim text.