Abstract: An isolation system is disclosed that contains: a lower wet connect portion, a central production tubing, an isolation device associated with the central production tubing, and at least one communication line, wherein the at least one communication line is associated with the lower wet connect portion and is disposed through an inside diameter of the isolation device. Further, a method for isolating a lower completion is disclosed that includes: conveying an isolation assembly to the lower completion, the isolation assembly including: a lower wet isolation device; and routing the at least one communication line through an inside diameter of the isolation device. Further a completion system is disclosed that contains a lower completion system and an isolation system associated with the lower completion system.

Abstract: A method of completing a wellbore is disclosed that in one non-limiting embodiment includes: placing a lower completion assembly that includes a flow device to provide fluid communication between the lower completion assembly and a production zone associated with the lower completion assembly; placing an isolation assembly with a packer above the lower completion assembly for isolating an annulus between the lower completion assembly and the wellbore; placing a flow restriction device above the packer; setting the flow restriction device in the annulus to restrict flow of fluid through the annulus; and setting the packer after setting the flow restriction device.

Abstract: A method of completing a wellbore is disclosed that in one non-limiting embodiment includes: placing a lower completion assembly that includes a flow device to provide fluid communication between the lower completion assembly and a production zone associated with the lower completion assembly; placing an isolation assembly with a packer above the lower completion assembly for isolating an annulus between the lower completion assembly and the wellbore; placing a flow restriction device above the packer; setting the flow restriction device in the annulus to restrict flow of fluid through the annulus; and setting the packer after setting the flow restriction device.

Abstract: In one aspect, an isolation system is disclosed that contains: a lower wet connect portion, a central production tubing, an isolation device associated with the central production tubing, and at least one communication line, wherein the at least one communication line is associated with the lower wet connect portion and is disposed through an inside diameter of the isolation device. In another aspect, a method for isolating a lower completion is disclosed that in one embodiment includes: conveying an isolation assembly to the lower completion, the isolation assembly including: a lower wet connect portion, at least one communication line, a central production tubing, and an isolation device; and routing the at least one communication line through an inside diameter of the isolation device. In another aspect, a completion system is disclosed that in one embodiment contains a lower completion system and an isolation system associated with the lower completion system.

Abstract: Systems and methods for alternately coupling equipment at the surface of a well to different ones of a set of downhole tools installed in the well. In one embodiment, a system includes surface equipment positioned at the surface of a well and a plurality of downhole tools that are installed downhole in the well. A switcher is positioned in the well between the surface equipment and the downhole tools. An upper line is electrically connected between the surface equipment and the switcher, and a set of lower lines are electrically connected between the switcher and a corresponding set of of downhole tools. The switcher alternately couples different ones of the lower electrical lines electrically to the upper electrical line. At any time, the upper electrical line is electrically coupled to only one of the lower electrical lines.

Abstract: A well system includes a valve interconnected in a casing string and selectively configurable between first and second configurations via a line external to the casing string, the valve in the first configuration being operable to selectively permit and prevent fluid flow between the casing string exterior and interior, and in the second configuration to selectively filter and prevent fluid flow between the casing string exterior and interior. A method of selectively stimulating a formation includes: positioning a casing string in a wellbore intersecting the formation, the casing string including a valve operable via an external line to selectively permit and prevent fluid flow between the casing string interior and exterior; and stimulating an interval set of the formation by opening the valve, flowing a stimulation fluid from the casing string into the interval set, and then configuring the valve to filter formation fluid which flows into the casing string.

Abstract: A well system includes a valve interconnected in a casing string and selectively configurable between first and second configurations via a line external to the casing string, the valve in the first configuration being operable to selectively permit and prevent fluid flow between the casing string exterior and interior, and in the second configuration to selectively filter and prevent fluid flow between the casing string exterior and interior. A method of selectively stimulating a formation includes: positioning a casing string in a wellbore intersecting the formation, the casing string including a valve operable via an external line to selectively permit and prevent fluid flow between the casing string interior and exterior; and stimulating an interval set of the formation by opening the valve, flowing a stimulation fluid from the casing string into the interval set, and then configuring the valve to filter formation fluid which flows into the casing string.

Abstract: The invention is, in its various aspects, a method and apparatus useful for strapdown inertial navigation and surveying in a borehole. The method comprises maneuvering a probe including three vibrating mass, Coriolis effect gyroscopes in a borehole and initializing the probe's attitude in the borehole within the probe's frame of reference. Three orthogonal, incremental rotation angles and three orthogonal, incremental velocities are determined for the probe within the probe's frame of reference. The incremental rotation angles are determined from the gyroscopes. The method then translates the three incremental velocities from the probe's frame of reference into the inertial frame of reference using the three incremental rotation angles. Next, a velocity vector in a local-vertical, wander-azimuth frame of reference is determined from the translated incremental velocities. A velocity error observation is then obtained.