Abstract: A method and apparatus for removing oil from the produced water that is associated with the production of hydrocarbons. The method consists of providing a plurality of serially connected individual compartments with each compartment connected to the next compartment by a flow path that induces the oil droplets to coalesce. The method may also include the use of parallel plate coalescers and gas flotation devices to aid in treating.

Abstract: A method and apparatus for removing oil from the produced water that is associated with the production of hydrocarbons. The method consists of providing a plurality of serially connected individual compartments with each compartment connected to the next compartment by a flow path that induces the oil droplets to coalesce. The method may also include the use of parallel plate coalescers and gas flotation devices to aid in treating.

Abstract: A method and apparatus for removing oil from the produced water that is associated with hydrocarbons. The method consists of providing a plurality of serially connected individual compartments in a vertical flume or pipe with each compartment connected to the next compartment by a flow path that induces the oil droplets to coalesce.

Abstract: A method and apparatus for removing oil from the produced water that is associated with hydrocarbons. The method consists of providing a plurality of serially connected individual compartments in a vertical flume or pipe with each compartment connected to the next compartment by a flow path that induces the oil droplets to coalesce.

Abstract: A reclosing apparatus for reclosing an open container while still laden with contents, to inhibit spillage of the contents. The reclosing apparatus comprises a plate mounted about the central post of a container top for rotating between open and closed positions. The plate includes an axis bore for receiving the central post therethrough, and a sealing region for effecting a spill-resistant seal over the opening in the container top. The sealing region may include a seal depression and/or a seal ridge. When the reclosing apparatus is in the closed position, the seal depression protrudes through the opening, effecting at least a partial spill-resistant seal therewith. The seal ridge, if included, is formed in the plate to matingly align with a border ridge formed in the container top around the periphery of the opening.

Abstract: Apparatus for connecting portions of subsea flow conduits includes a stab member with a body and having a bore therethrough, one end of which exits from the stab body through a side port. A stab receptacle includes a bore for receiving the stab body, and a flow bore intersecting the receiving bore and leading to the exterior of the receptacle. The side port communciates with the receptacle flow bore when the stab member is landed in the receiving bore. Seals above and below the side port seal the receiving bore above and below the intersection of the receptacle flow bore and receiving bore. The cross-sectional areas of the seals exposed to internal fluid pressure are substantially equal, resulting in zero blow-apart force on the stab connection. Alternatively, the lower seal can have a larger exposed cross-sectional area than the upper seal, resulting in a net force tending to hold the connection teogether.

Abstract: A split gate for a gate valve regulating fluid flow with reduced gate drag. The split gate comprises a plurality of members for sealing a flowway intersecting a valve chamber. A first member seats against a first portion of the flowway and has a pressure-balancing surface pressure-isolated from the first flowway portion and from the valve chamber. A second member seats against a second portion of the flowway and allows pressure in the second flowway portion to bear on the pressure-balancing surface of the first member. Pressure in the valve chamber exceeding pressures in the flowway portions creates pressure differentials pressing the gate members more firmly against their seats, thereby increasing the frictional resistance opposing reciprocation of a closed gate to its open position.

Abstract: A postal service facility including a housing, access areas for supporting postal service equipment installed on or within the housing surface, and a rotatable assemblage of postal boxes disposed between mounts within the accessible housing interior. A lockable outer door provides access to the assemblage in the housing interior. Electric switches controlling a motor and a brake provide the preferred means of rotating the assemblage. The assemblage contains a plurality of individually lockable postal boxes. Locking strips or lockable panels allow concurrent access to a plurality of boxes to facilitate delivery of posted items to the boxes. The assemblage can be generally cylindrical in shape for most efficient use of space. Alternatively, the assemblage can be rectangular in cross section.