Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers
Patent 7946344 Issued on May 24, 2011. Estimated Expiration Date: 
September 26, 2027. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 26, 2027. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2530966 Perforable screen device for subterranean wells and method of producing multi-lobe zones Circuit for driving a light emitting elements display device Expandable borehole packer Well completion system having perforating charges integrated with a spirally wrapped screen Patent #: 7753121 InventorsAssigneeApplicationNo. 12443066 filed on 09/26/2007US Classes:166/297Perforating, weakening, bending or separating pipe at an unprepared pointExaminersPrimary: Thompson, KennethAssistant: Bible, Sonya Foreign Patent References
International ClassesE21B 29/00E21B 43/11 E03B 3/18 AbstractAn assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers comprises a series of expandable packers and integrated perforating gun and sandscreen assemblies mounted on a production tubing such that each integrated perforating gun and sandscreen assembly is located adjacent an oil and/or gas bearing earth layer and at least one expandable packer is located between a pair of adjacent oil and/or gas bearing earth layers, and at least one inflow opening arranged in the wall of the production tubing adjacent to each sandscreen assembly. The integrated perforating gun and sandscreen assemblies are installed in a single run into the well such that uncontrolled fluid and/or sand influx into the well before installation of the sandscreens and expandable packers is avoided. | |
