Back to results
US 9,790,767 B2Granted
System for multi-zone well test/production and method of use
AssigneeSaudi Arabian Oil Company
InventorShaohua Zhou
Life of this patent
Estimating the term…
Abstract
A multi-zone well test system, that can flow test multiple zones within a subterranean formation and without the use of a rig. The system includes an inflow control tool that is ball actuated, a top diverter sub, a zonal isolation packer, a bottom diverter sub, and a dual-conduit tubing system. An advantage of the test system is that the subs and packers can be individually actuated without a surface operated control system.
Claims21
A tool string for use in a wellbore comprising:
- a tubing string;
- a main bore axially formed in the tubing string;
- lateral bores disposed radially outward from the main bore and that are axially formed in a sidewall of the tubing string;
- an inlet formed radially through the sidewall of the tubing that intersects at least one of the lateral bores;
- a packer on the tubing string that is selectively expandable into sealing contact with a wall of the wellbore to define a pressure barrier in an annulus between the tubing string and the wall of the wellbore;
- an inflow control sub on the tubing string comprising,
- ports projecting radially through the sidewall from the main bore to an outer surface of the tubing string, and
- a sleeve coaxially slidable in the main bore with openings that selectively register with the ports to provide communication between the main bore and the outer surface of the tubing string;
- and
- an actuator in a one of the lateral bores and that is coupled with the inflow control sub and that selectively delivers an axial sliding force to the sleeve.
7 more elements
A method of using a tool string in a wellbore comprising:
- providing a tubing string having, a main bore, lateral bores extending axially in a sidewall of the tubing string and each having an end disposed adjacent a wellhead assembly, a packer in selective communication with the main bore, and a flow sub;
- disposing the tubing string into the wellbore;
- and
- selectively creating a path of communication between the main bore and an annulus between the tubing string and wellbore by pressurizing a one of the lateral bores.
1 more element
Dependencies are inferred from the claim text.