Abstract: An expandable tubular includes a plurality of leaves formed from sheet material that have curved surfaces. The leaves extend around a portion or fully around the diameter of the tubular structure. Some of the adjacent leaves of the tubular are coupled together. The tubular is compressed to a smaller diameter so that it can be inserted through previously deployed tubular assemblies. Once the tubular is properly positioned, it is deployed and coupled or not coupled to a previously deployed tubular assembly. The tubular is useful for all types of wells and boreholes.

Abstract: An expandable tubular includes a plurality of leaves formed from sheet material that have curved surfaces. The leaves extend around a portion or fully around the diameter of the tubular structure. Some of the adjacent leaves of the tubular are coupled together. The tubular is compressed to a smaller diameter so that it can be inserted through previously deployed tubular assemblies. Once the tubular is properly positioned, it is deployed and coupled or not coupled to a previously deployed tubular assembly. The inventive tubular is useful for all types of wells and boreholes.

Abstract: In various embodiments, a user may graphically create and/or modify underwriting rules. The underwriting rules may be automatically executed by a computer system. Insurance information or insurance underwriting data stored on a database or received via an XML message may be processed automatically by the underwriting rules. Insurance claims or policies may be automatically accepted, declined, and/or referred by the underwriting rules.

Abstract: A stacked dual gas burner which achieves good performance at high firing rates as well as good simmer performance at low firing rates. The stacked dual gas burner includes a main burner and a second (simmer) burner. The main burner and second burner are positioned in a stacked relation in a burner assembly, with the second burner positioned coaxially with and below the main burner. The second burner radius is smaller than the main burner radius, such that a portion of the main burner overhangs the second burner adjacent to the second burner ports. Recirculation underneath the overhanging edge of the main burner above the simmer burner ports helps maintain flame attachment at the second burner ports. A valve may be used to provide separately controllable flows of fuel to each of the main and second burners.