Granted Patent B2

US 12,735,951 · App. 18/685,280 · Granted Sep 15, 2026

Inventors: Glenn Thore Saebo (Kristiansand, NO); Vikas Rakhunde (Cypress, TX); Taylor Mozisek (Fulshear, TX); Jon Tyler (Houston, TX)

Assignee: Schlumberger Technology Corporation

E21B21/08E21B47/06

Abstract

Claims (18)

1 . A drilling system, comprising:

a drilling fluid flow path configured to be selectively utilized with a well control drilling technique during a first drilling operation and a managed pressure drilling (MPD) technique during a second drilling operation;

a first set of lines coupled to a blowout preventer coupled to a wellhead, wherein the first set of lines run along a telescopic joint and are configured to be utilized as a mud boost line;

a rotating control device positioned between the blowout preventer and the wellhead, wherein the rotating control device is configured to block fluid flow through an annular space surrounding a drilling riser;

a flow diverter assembly positioned between the rotating control device and the blowout preventer, wherein the flow diverter assembly is configured to divert drilling fluids, cuttings, and gas away from a drill floor;

a first manifold assembly coupled to the drilling fluid flow path, wherein the first manifold assembly comprises a drilling choke configured to be utilized with the well control drilling technique and coupled to the first set of lines, wherein the first manifold assembly is coupled to the drilling choke via a second set of lines;

a second manifold assembly coupled to the drilling fluid flow path, wherein the second manifold assembly comprises a MPD choke configured to be utilized with the MPD technique, wherein the second manifold assembly is coupled to the MPD choke via a third set of lines;

a fourth set of lines coupled to one or more components of a wellhead assembly, wherein the fourth set of lines comprises a first line and a second line, wherein, during the first drilling operation, the first line is configured to be utilized as a choke line, and the second line is configured to be utilized as a kill line, and wherein, during the second drilling operation, the first and second lines are configured to be utilized as fluid return lines;

a plurality of valves disposed along the fourth set of lines;

a third manifold assembly coupled to the first manifold assembly and the second manifold assembly, wherein the third manifold assembly is coupled to the first manifold assembly via a fifth set of lines, wherein a first set of valves comprising one or more of the plurality of valves are configured to regulate flow between the first manifold assembly and the third manifold assembly along the fifth set of lines, wherein the third manifold assembly is coupled to the second manifold assembly via a sixth set of lines, and wherein a second set of valves comprising one or more of the plurality of valves are configured to regulate flow between the second manifold assembly and the third manifold assembly along the sixth set of lines; and

a controller communicatively coupled to the plurality of valves, wherein the controller is configured to control the plurality of valves to switch between the first drilling operation and the second drilling operation.

2 . The drilling system of claim 1 , wherein the controller is configured to control the plurality of valves to enable utilization of the first line as the choke line and the second line as the kill line during the first drilling operation and to control the plurality of valves to enable utilization of the first and second lines as fluid return lines during the second drilling operation.

3 . The drilling system of claim 1 , wherein the first manifold assembly and the second manifold assembly are separate from one another.

4 . The drilling system of claim 3 , wherein the fourth set of lines are coupled to a common manifold downstream of both the first manifold assembly and the second manifold assembly.

5 . The drilling system of claim 1 , wherein the first manifold assembly and the second manifold assembly form a single manifold assembly.

6 . The drilling system of claim 1 , wherein the fourth set of lines is coupled to the blowout preventer.

7 . The drilling system of claim 6 , wherein the fourth set of lines is coupled to a flow spool.

8 . The drilling system of claim 1 , wherein the plurality of valves comprises a first valve, a second valve, a third valve, and a fourth valve, wherein, during the first drilling operation, the first valve and the second valve are open and the third valve and the fourth valve are closed, and wherein, during the second drilling operation, the first valve and the second valve are closed and the third valve and the fourth valve are open.

Assignments (1)

Continuity (2)

References Cited (23)