https://www.trendsetterengineering.com/well-control/
Well Control & Capping
Capping Stacks
Capping Stack technology is one of the highest impact developments to hit the oil and gas industry in many years, and Trendsetter remains at the apex of innovation.
As a result of the Macondo oil spill incident in 2010 and the cessation of subsea drilling mandated by the U.S. government, Trendsetter developed a single ram capping stack in 7 ½ weeks for the Marine Well Containment Company (MWCC), a consortium currently consisting of ten Gulf of Mexico companies involved in deep-water drilling. Since then, Trendsetter has become the global leader in providing fit-for-purpose capping stack technology.
Trendsetter develops well containment packages for spill response to be deployed in exploration and production basins around the world, with appropriate services to test, certify, maintain, install, recover, and refurbish the containment packages. The well containment packages feature the Capping Stack, Subsea Accumulator Module, Riser Insert Diverter System, Flow Base, Deck Skids, and Deployment Tooling.
HIGHLIGHTED FEATURES:
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External Tree Cap
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Developed for applications with space and stack-up height limitations, Trendsetter’s External Tree Cap (ETC) offers our customers a robust metal sealing cap for 27” OD H4 wellheads and mandrels in a lightweight, compact package. While the ETC has been designed for challenging environments such as mud-line cellars with minimum depth requirements for assets below the mudline, it can be deployed in any situation where a simple, effective metal sealing cap is required. The ETC is operated hydraulically using a hotstab from ROV or surface downline. The H4 locking dogs are held in place with an actuating piston utilizing a flat-to-flat design which functions as the primary locking mechanism. A secondary mechanical lock mechanism, actuated on the ROV panel, provides redundancy. The unlock function is also operated hydraulically. In the event a hydraulic unlock is not effected, mechanical secondary unlock rods can be engaged with an external tool to effect a positive release. The ETC provides two bore penetrations, accessible by ROV hotstab, to facilitate pressure testing, fluid circulation, and venting of the well bore. A hydrate inhibitor injection wash port is also accessible on the ROV panel. An 18-3/4” VX profile gasket provides the metal seal to the wellbore. The bore penetrations are fitted with metal sealing rotary gate valves and pressure retaining blind hotstabs. |
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Wellhead Completion Cap
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Due to the extended delivery times for production trees from suppliers and the increasing difficulty for oil companies to secure the necessary permits to drill, Trendsetter has designed, developed and fabricated wellhead completion caps to protect previously completed production wells. These completion caps permit the oil companies to release the drilling rig upon the completion of a well, regardless of subsea tree delivery. Once the production tree becomes available, the wellhead completion cap (WCC) is recovered and replaced by the permanent production tree. Down-hole plugs are removed with a rigless intervention system, and the well is ready for startup without the added expense and schedule risk of having to source a drilling rig. Trendsetter’s WCC is designed and tested in accordance to API 6A/17D requirements and can be built to interface with any industry wellhead and tubing hanger. The system is landed and locked onto the tubing head spool with or without the tubing hanger installed. The temporary tree system includes a nominal 5” production bore and nominal 2” annulus bore. The Trendsetter designed system provides a sealing barrier to the production bore of the tubing hanger and allows vertical access to the production bore to enable the removal of wireline plugs or intervention from a drilling rig or rigless intervention system. No permanent controls are required for the system, as local pressure gauges are utilized and all operations and monitoring are performed by a ROV. In the event that the operator needs to access the well with the wellhead completion cap installed, Trendsetter incorporated the necessary seal areas and latch profiles to run a subsea test tree equipped with Trendsetter’s XT latch tool. |
Relief Well Injection Spool
Since 2010, Trendsetter Engineering and Add Energy have teamed to work together on multiple projects. In 2015, the companies came together with the aim to further develop technology that benefits the energy industry by increasing safety and allowing for more cost-effective drilling operations, resulting in the development of the Relief Well Injection Spool (RWIS). Utilizing both Trendsetter’s subsea engineering experience and Add Energy’s expert on-site advisory for blowouts and well control incidents, the two companies created a breakthrough tool for dynamic bottom kill relief well applications.
FEATURES AND BENEFITS:
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