Abstract: A self-contained filtration assembly with a self-contained filtration cassette therein. The cassette may be formed from one or more layers membranes and spacers (spacers, screens, or combinations thereof) all having the same general shape. The cassette may have a feed inlet path and a retentate outlet path extending through the layers of the cassette within the perimeter of the cassette, and a permeate outlet path between the cassette exterior and the interior of the cassette housing. The housing may have a generally circular or elliptical cross-section. A clamping assembly may hold together the components of the housing, and may be elongated in a direction along the flow path of the feedstream through the cassette. Various port-defining zones defined in the layers of the cassette may be sealed in a manner facilitating assembly of the cassette as well as isolation of the flow paths therein.

Abstract: A bottom hole assembly (BHA) has a plug below a debris catcher and an optional telescoping joint. A cleaning tool is above the debris catcher with another cleaning tool further up the BHA that is designed to clean the riser that extends up from the BOP. The plug is spotted and released to commence the BOP cleaning and the riser cleaning. The cleaning tools can be reconfigured to allow through flow after the cleaning is done so that the rams can be closed around a drill collar and a pressure test take place. With the BHA above the BOP the rams can be closed against each other for another pressure test from above. In a variety of options for the method, the plug can be retrieved after released or left in the hole in the set position.

Abstract: A bottom hole assembly (BHA) has a plug below a debris catcher and an optional telescoping joint. A cleaning tool is above the debris catcher with another cleaning tool further up the BHA that is designed to clean the riser that extends up from the BOP. The plug is spotted and released to commence the BOP cleaning and the riser cleaning. The cleaning tools can be reconfigured to allow through flow after the cleaning is done so that the rams can be closed around a drill collar and a pressure test take place. With the BHA above the BOP the rams can be closed against each other for another pressure test from above. In a variety of options for the method, the plug can be retrieved after released or left in the hole in the set position.

Abstract: A bottom hole assembly (BHA) enables a one trip procedure to set a bridge plug and release from that bridge plug with the BHA. A perforating gun is fired and a straddle tool above the gun in repositioned to wash the perforations as the opposed packer cups are moved along the perforations. At the end of the washing step a dropped ball closes a circulation port above the upper packer cups and the ball seat is blown out. A disconnect releases the lower part of the straddle tool with the lower packer cups that are uphole oriented. Cement can now be delivered past the upper packer cups and pressurized to squeeze the cement into the perforations using the upper cups to hold the pressure. Another ported sub above the upper cups has a port opened to prevent swabbing as the BHA is removed.

Abstract: A filtration cartridge is provided comprising one or a stack of filtration units sealed to each other at their inner periphery and their outer periphery and to end caps thereby eliminating the need for a housing surrounding the stack. Fluid pathways are provided so that filtration of all incoming feed is assured prior to passing from the cartridge as filtrate.

Abstract: The present invention involves a process that includes injecting a potting compound such as an epoxy through a hollow portion of the central mandrel and onto the inner layer(s) of a multi-layered fiber bundle and through the outside of the bundle and onto the outer layer(s) of the bundle. By potting through the central mandrel, the potting compound distributes evenly throughout the inner fibers of the bundle. The steps may be sequentially or simultaneously. Preferably it is done as a two-step process, with the first step being to apply the potting compound through the central mandrel and onto the inner fibers first. The second step is to pot around the outer layer of the fiber bundle to finish the process. The resultant product is also disclosed.

Abstract: The present invention involves a process that includes injecting a potting compound such as an epoxy through a hollow portion (2B) of the central mandrel (2) and onto the inner layer(s) of a multi-layered fiber bundle (3) and through the outside of the bundle and onto the outer layer(s) of the bundle. By potting through the central mandrel (2), the potting compound distributes evenly throughout the inner fibers of the bundle (3). The steps may be sequentially or simultaneously. Preferably it is done as a two-step process, with the first step being to apply the potting compound through the central mandrel (2) and onto the inner fibers first. The second step is to pot around the outer layer of the fiber bundle (3) to finish the process. The resultant product is also disclosed.

Abstract: The present invention involves a process that includes injecting a potting compound such as an epoxy through a hollow portion (2B) of the central mandrel (2) and onto the inner layer(s) of a multi-layered fiber bundle (3) and through the outside of the bundle and onto the outer layer(s) of the bundle. By potting through the central mandrel (2), the potting compound distributes evenly throughout the inner fibers of the bundle (3). The steps may be sequentially or simultaneously. Preferably it is done as a two-step process, with the first step being to apply the potting compound through the central mandrel (2) and onto the inner fibers first. The second step is to pot around the outer layer of the fiber bundle (3) to finish the process. The resultant product is also disclosed.