Abstract: An improved method for the repair of fiberglass boat hulls by replicating surface textures on the boat hulls is disclosed. A laminar, dimensionally stable, flexible mold is formed having a negative impression of the surface texture to be replicated formed on one side thereof. The laminar, dimensionally stable, flexible mold then is placed atop a recipient boat hull surface and a layer of fluid casting material. Pressure is applied to the laminar, dimensionally stable, flexible mold to expel entrapped gas from the fluid casting material and to evenly distribute the flexible casting material over the recipient hull surface. The fluid casting material is cured, and the laminar, dimensionally stable, flexible mold is removed. A replica of the surface texture remains on the recipient boat hull surface.

Abstract: The present invention relates to a subterranean well annulus pressure safety valve. In one embodiment, the valve is full opening to permit complete access therethrough of wireline and other remedial tools, and contains the annulus safety valve members completely offset from the central housing. The invention also relate to an annulus safety valve wherein a series of valve elements are placed exterior of a central housing and may be staged to open in series upon incremental increase of pressure thereacross. The annulus safety valve also provides pressure equalization means to equalize pressure across the valve cluster prior to opening of the cluster. The annulus safety valve also has selectively disengagable sealing plug means therein which may be removed while the valve is in the well to increase total fluid flow area through the valve components of the apparatus. A method of controlling an annular area interior of casing within a well using the annulus safety valve also is disclosed.