Abstract: The present invention provides for a design and method of manufacture for a mesh-type screen to be used in subsurface well completions to prevent the production of sand.

Abstract: Present invention relates to high brine carrier fluid, said carrier fluid selected from the group consisting of organic acids, organic acid salts, inorganic salts and combination of one or more organic acids or organic acid salts, a co-surfactant and an amount of a zwitterionic surfactant. The invention also relates to methods of treating a subterranean wellbore, including drilling, hydraulic fracturing, gravel placement, scale removing, mud cake removing, using said high brine carrier fluid.

Abstract: The present invention discloses a system using a conduit run into a well on a service string. In one embodiment the conduit includes outlets along its length to permit a sand control treatment to exit the conduit along the length of the conduit and distribute the sand control treatment along the length of the conduit. The conduit can have a plurality of such outlets spaced to provide an even distribution of the sand control treatment. The conduit can be attached to the delivery tubing (such as coiled tubing or service string tubing) via a releasable connector. The conduit is deployed on the delivery tubing and connector (and is in fluid communication therewith) in the well adjacent to an area to be treated. The sand control treatment is pumped into the well. Once the sand control treatment is complete, the releasable connector is released to disconnect the conduit from the delivery tubing and the delivery tubing is removed from the well.

Abstract: The present invention provides for a design and method of manufacture for a mesh-type screen to be used in subsurface well completions to prevent the production of sand.

Abstract: A well completion method performed in a single trip into a well includes inserting a service tool into the well to a desired location; gravel packing the well; and circulating fluids within the wellbore through the service tool to dislodge and remove filter cake residue. A method of completing a subterranean well performed in a single trip into a wellbore includes running a service tool into the well, the service tool defining multiple, selectable flow paths; gravel packing the well; selecting a different flow path of the service tool; removing a filter cake from the wellbore by circulating a fluid through the service tool; spotting specially fluids within the wellbore at desired locations; and removing the service string from the well.

Abstract: A well completion has an expanded tubing portion and an unexpanded tubing portion. In another embodiment, an expandable tubing is provided and a gravel pack operation is performed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A well completion has an expanded tubing portion and an unexpanded tubing portion. A seal is provided on the unexpanded portion. In another embodiment, an expandable tubing is provided and a gravel pack operation is performed.

Abstract: A method of gravel packing a wellbore which has at least one aperture therein that provides a fluid flow path between the wellbore and an adjacent subterranean formation. At least a part of the formation adjacent to the open hole has a filter cake coated thereon that comprises a water and oil emulsion. The method of gravel packing comprises injecting into the wellbore a gravel pack composition that comprises gravel and a carrier fluid. The carrier fluid comprises an aqueous liquid having a pH that is outside the range at which the filter cake emulsion is stable. The aqueous liquid is present in an amount effective to invert the water in oil emulsion in the filter cake when the carrier fluid comes into contact with the filter cake. As a result, gravel is deposited at or adjacent to the aperture in the wellbore and some of the filter cake is removed.

Abstract: An apparatus for use in wellbores that enables the running in, washing down, gravel packing, reversing excess slurry, and the spotting of post gravel pack fluids on a single trip. The one trip apparatus comprises a housing having an exterior and a longitudinal bore extending therethrough, and a lateral port providing a communication path between the housing longitudinal bore and the exterior of the housing. A first sleeve is disposed within the housing longitudinal bore that has a longitudinal passageway therethrough and is capable of being positioned in an upper position and a lower position relative to the housing. First and second lateral passageways extend through the wall of the first sleeve. A second sleeve is disposed within the first sleeve and also has a longitudinal passageway therethrough. The second sleeve is capable of being positioned in an upper position and a lower position relative to the first sleeve.

Abstract: A circulation tool includes a housing having a longitudinal bore therethrough, a wall, and at least one lateral port through the housing wall and at least two sliding sleeves. At least one circulation flow passage is disposed within the housing wall. A plurality of circulation paths are created by the selective positioning of the at least two sliding sleeves.

Abstract: A well completion has an expanded tubing portion and an unexpanded tubing portion. In another embodiment, an expandable tubing is provided and a gravel pack operation is performed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: Present invention relates to high brine carrier fluid, said carrier fluid selected from the group consisting of organic acids, organic acid salts, inorganic salts and combination of one or more organic acids or organic acid salts, a co-surfactant and an amount of a zwitterionic surfactant. The invention also relates to methods of treating a subterranean wellbore, including drilling, hydraulic fracturing, gravel placement, scale removing, mud cake removing, using said high brine carrier fluid.

Abstract: The present invention discloses a system using a conduit run into a well on a service string. In one embodiment the conduit includes outlets along its length to permit a sand control treatment to exit the conduit along the length of the conduit and distribute the sand control treatment along the length of the conduit. The conduit can have a plurality of such outlets spaced to provide an even distribution of the sand control treatment. The conduit can be attached to the delivery tubing (such as coiled tubing or service string tubing) via a releasable connector. The conduit is deployed on the delivery tubing and connector (and is in fluid communication therewith) in the well adjacent to an area to be treated. The sand control treatment is pumped into the well. Once the sand control treatment is complete, the releasable connector is released to disconnect the conduit from the delivery tubing and the delivery tubing is removed from the well.

Abstract: An apparatus for use in wellbores that enables the running in, washing down, gravel packing, reversing excess slurry, and the spotting of post gravel pack fluids on a single trip. The one trip apparatus comprises a housing having an exterior and a longitudinal bore extending therethrough, and a lateral port providing a communication path between the housing longitudinal bore and the exterior of the housing. A first sleeve is disposed within the housing longitudinal bore that has a longitudinal passageway therethrough and is capable of being positioned in an upper position and a lower position relative to the housing. First and second lateral passageways extend through the wall of the first sleeve. A second sleeve is disposed within the first sleeve and also has a longitudinal passageway therethrough. The second sleeve is capable of being positioned in an upper position and a lower position relative to the first sleeve.

Abstract: A method is disclosed of gravel packing a wellbore which has at least one aperture therein that provides a fluid flow path between the wellbore and an adjacent subterranean formation. At least a part of the formation adjacent to the open hole has a filter cake coated thereon that comprises a water and oil emulsion. The method of gravel packing comprises injecting into the wellbore a gravel pack composition that comprises gravel and a carrier fluid. The carrier fluid comprises an aqueous liquid having a pH that is outside the range at which the filter cake emulsion is stable. The aqueous liquid is present in an amount effective to invert the water in oil emulsion in the filter cake when the carrier fluid comes into contact with the filter cake. As a result, gravel is deposited at or adjacent to the aperture in the wellbore and some of the filter cake is removed.