Swift Boy Riser Jet Tool

Description / Application

The Swift Boy™ riser jet tool is a solid mandrel tool with a 16.000-in OD for use in 18 3/4-in or larger BOPs and risers. These tools are run in the clean-up/displacement string or can be introduced after short tripping the proper distance to tag the wellhead for depth control. This tool is used to hydro-blast the BOP cavities, removing lodged solids and debris to introduce them into the fluid stream while increasing annular velocities in the marine riser. There are eighteen 5/8-in ID jet nozzles that direct fluid up, out, and down to thoroughly dislodge junk and debris. The number of nozzles and direction of flow can be configured to accommodate surface equipment and hydraulic concerns.

Swift Boy Jet Tool

Description / Application

Swift Boy™ standard jet tools are solid mandrel tools with a 6.750-in OD for use in 9 5/8-in or larger casing. This jetting tool can be run in the clean-up/displacement string to jet the wellhead or provide drill string to annulus communication as a high velocity by-pass/circulating sub. This tool is also used to hydro blast the tubing ID or specific cavities in the tubing string to remove solids and debris introduce them into the fluid stream while increasing annular velocities in the tubing around the tool. There are 4 jet nozzles that direct fluid out to thoroughly dislodge junk and debris. Each nozzle has an ID of .687-in with a total flow area of 1.483-in².

Operation

When the tool is positioned at the wellhead or in the tubing string and rates have been established through the bit the jet tool is activated by dropping a retrievable dart in the jet tool and shifting the tool to the open position. This position directs all of the flow through the jetting nozzles. The tool is then rotated slowly and reciprocated the appropriate distance to cover the area to be cleaned. At maximum achievable flow rate down work string plus maximum boost line rate the debris is introduced into the fluid stream and lifted into the riser or up the tubing string. A Bilco waste retriever is generally run a double (60- 64-ft) above the jet tool to accomplish complete removal of the lifted solids. After the jetting operation the tool is deactivated by dropping a second retrievable dart, which redirects the flow down the work string, back to the bit. Fluid exchange operation can continue without the need for a designated trip to remove the jet and waste retriever tools.