A screen assembly, such as a downhole/sand screen assembly, comprising first and second screen portions or screens longitudinally coupled together, wherein there is provided a fluid flow path between the first and second screen portions or screen. Optionally, the first and second sleeves are coupled or connected by a centraliser or further sleeve or screen, and/or optionally by or via first and second support ring.

A multi-zone, one trip completion system for a wellbore is described. A plurality of isolation packers is installed in borehole to isolate a plurality of zones of the annulus between a tubing string and a wellbore. Each tubing string section is positioned in a zone and comprises a selectively openable stimulation port to provide stimulation fluid to its zone and a selectively openable production port to receive fluid from its zone. The system also comprises a circulation system with a plurality of circulation tubes and circulation tube valves, being configurable in a plurality of configurations to selectively connect, via a circulation flow path, the central bore or the borehole annulus of a wellbore at each of the plurality of sections, to an upper circulation flow path open to an annulus above an uppermost of the plurality of isolation packers.

A gravel packing apparatus includes a base pipe defining an interior fluid conduit, the base pipe having a production section configured to provide fluid communication between an exterior of the base pipe and an interior of the base pipe, the base pipe having a blank section. The apparatus also includes a screen surrounding the production section, the screen in fluid communication with an annular region of a borehole and configured to prevent particulate matter from passing therethrough, and a filtration assembly disposed proximate to the blank section, the filtration assembly including a fluid passage extending between an exterior of the blank section and an interior of the blank section.

A well screen system includes upstream and downstream screen assemblies arranged along an axis. The assemblies each have first and second transport tubes. A first packing tube is connected to the first transport tube by first adapter and has an uppermost nozzle axially spaced from the first adapter by a first effective packing tube length. A second packing tube is connected to the second transport tube by a second adapter and has an uppermost nozzle axially spaced from the second adapter by a second effective packing tube length different than the first effective packing tube length. The downstream screen assembly second transport tube is connected to the upstream screen assembly first transport tube to alternate the effective packing tube lengths of packing tube uppermost nozzles along the screen system. Methods of making well screen systems and methods of gravel packing well screen systems are also disclosed.

Completion Systems and Methods to Perform Completion Operations are disclosed. A completion system includes a tubular having a wall that defines a flowbore within the tubular and extending into a zone of an annular region external to the tubular. The completion system also includes a first port disposed in the wall and configured to provide fluid communication between the flowbore and the annular region, and a communication path disposed at least partially within the wall and configured to provide fluid communication with an annulus of a well outside of the zone. The completion system further includes a second port disposed in the wall and configured to provide fluid communication between the flowbore and the communication path, a cover disposed over the second port and configured to prevent fluid communication during a fracturing operation, and a diverter seat disposed in the flowbore of the tubular uphole of the second port.

A one-trip screen installation and cleaning system includes a tubular supporting a screen. The tubular has an inner surface defining a flow bore positioned radially inwardly of the screen. At least one actuator extends radially inwardly from the inner surface and is positioned axially offset relative to the screen. The at least one actuator includes at least one actuator surface. A wash pipe is arranged in the flow bore. The wash pipe includes a bypass valve including a selectively openable outlet port, a spray cleaning device arranged axially outwardly of the selectively openable outlet port, and an inflow control valve arranged between the selectively openable outlet port and the spray cleaning device.

A system, method, and tool for controlling fluid in a wellbore. The system comprises a tubing string locatable in the wellbore and a crossover tool for enabling reverse circulation in the wellbore. The crossover tool comprises a tool body, a sleeve, a drag block assembly, and a packer assembly. The tool body comprises a bore in fluid communication with the tubing string and a valve in the bore. The sleeve is located in the tool body and controls the valve based on the axial position of the sleeve in the tool body. The drag block assembly is coupled to the sleeve through the tool body and engages the wellbore to resist axial movement of the sleeve relative to the tool body. The packer assembly is coupled to the tool body and creates a fluid barrier in the annulus formed between the tubing string and the wellbore.

A connection assembly for a tube having a first pin attached to the tube, the first pin having a first sealing member; a second pin attached to a jumper tube, the second pin having a second sealing member; and a movable sleeve configured to sealingly engage the first sealing member and the second sealing member.

An apparatus for use in a wellbore for performing a treatment operation is disclosed that in one non-limiting embodiment may include an inner string that further includes a first tubular having a first communication link, and a service tool including a cross-over tool having a fluid flow passage therein for supplying a treatment fluid under pressure from an inside of the service tool to an outside of the service tool, and wherein the service tool includes a second communication link operatively coupled to the first communication link and wherein the second communication link runs across or through the fluid flow passage in the cross-over tool that is protected from direct flow of the fluid under pressure from the inside of the service tool to the outside of the service tool.

A gravel pack system includes a liner assembly and a deployment assembly. The liner assembly includes a sand control screen. The deployment assembly facilitates rotation of the liner assembly and circulation through the liner assembly while running the liner assembly into a wellbore using a work string. The deployment assembly includes a crossover tool that is operated to facilitate gravel packing without manipulation of the work string. The deployment assembly also includes a setting tool for setting a packer and/or a sand barrier at the top of the liner assembly.