Halliburton Releases Large Bore Subsea Safety System
Halliburton Co. has released its Dash Large Bore Subsea Safety System providing full electrohydraulic control of well safety and intervention functions that has easier testing and assembly, faster activation and ease of configuration to projects, the company said in a February press release.
Deepwater operators doing completions and interventions will have improved critical control of the subsea safety system, tubing hanger and deepwater subsea field developments.
Halliburton said it collaborated with customers to design the Dash Large Bore, which can isolate the lower landing string in six seconds or less, disconnect from the lower landing string in 10 seconds or less and provide downhole data.
The two larger bore sizes, 6⅜ in. and 7⅜ in., in addition to the existing Dash 3-in. system, broaden the use of Halliburton’s electrohydraulic subsea safety systems.
Halliburton said Noble Energy Inc. used the Dash Large Bore recently during plug-and-abandonment operations in the U.S. Gulf of Mexico, where Dash Large Bore was the primary well control barrier and BOP, reducing rig time by several days.
Completion System Expedites Multizone Frack, Gravel Packs
To speed up sand control completions in land and offshore wells, Schlumberger offers its MZ-Xpress single-trip multizone frack- and gravel-pack system.
After the zones of interest are perforated and the well is cleaned, hardware for all zones is run into the well in a single trip, permitting rapid gravel or frack packing.
To ensure reliable operations in a wide variety of applications from land to deep water, the system incorporates robust debris management to minimize the risk of malfunctions and nonproductive time during sand control operations. The system also incorporates field-proven, modular subassemblies that increase application flexibility in challenging well architectures, including multiple casings.
New Subsea Inspection Service Becomes Available
Lloyd’s Register (LR) has released its Subsea Inspection Services to support underwater inspections of subsea pipelines, assets and facilities to energy companies operating offshore, a press release stated.
Services include project management, consultancy, personnel, quality control, data processing and data management, applicable to ROV, AUV and diver projects.
Headed by LR’s Subsea Inspection Manager Andrew Inglis and delivered by the company’s in-house experts in subsea inspection, survey and asset integrity, services will be provided to operators and contractors in the offshore oil and gas, wind farm and submarine cable sectors. Growth is forecast in all of these areas with research by Rystad Energy highlighting that subsea installations will increase production levels in the oil and gas sector from 15 MMbbl/d to 35 MMbbl/d by 2030. It anticipates a rapid recovery in maintenance, modifications and operations expenditure.
As operators begin to prepare for their annual subsea inspection programs, the company’s expertise will help clients achieve their subsea asset integrity requirements by optimizing project planning, execution and delivery, and facilitating the potential for multiclient multiproject operations. The company already has delivered subsea inspection contracts for major operators in the North Sea and Trinidad. Managed and co-ordinated in Aberdeen, the Subsea Inspection Service will be delivered to clients in all offshore energy regions through LR’s global network of office locations.
—Staff Reports
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