... Abstract The recovery of a pipeline inspection gauge (PIG) left in a subsea production flowline in an unknown location after a failed cleaning and inspection operation is discussed. Combined with paraffin deposits, the production flowline of the best offshore producer in northeast Brazil...

... to the flowline riser from the platform. With the flowline accessible by coiled tubing, services such as acid stimulation, artificial lift, hydrate remediation, etc. become feasible. The reach of the coiled tubing is limited to the pipeline end terminations of the riser flowlines making direct vertical access...

... results of the application. upstream oil & gas communication completion installation and operations wct flow assurance flowline procedure power fluid hydrate field test flow line workover rig dpr hydrate dissociation spe 153358 hydrate plug production flow line blockage valve...

... Abstract This paper discusses the prejob research and eventual use of a hydraulic workover (HWO)/snubbing unit for a subsea flowline intervention at the Nansen Spar in the Gulf of Mexico (GOM). Located in a water depth of 3,670 ft (1119 m), the Nansen Spar has been in production since 2002...

.... Production facilities are mounted on raised supports above the vessel deck. Reservoir fluids pass from subsea production wells, via flowlines and risers, up into the turret and then to the production facilities. Produced oil is stored in the vessel cargo tanks and periodically offloaded onto a shuttle tanker...

... contingencies to address the uncertainties. Our study investigated the operational planning and logistical requirements associated with the radiation of the flow assurance for the Serrano flowline. The Serrano flowline is located in the Gulf of Mexico (GOM), in 3,500 ft of water and is tied back 6 miles...

... must be periodically moved ahead and reset. Dynamically positioned ocean-going vessels temporarily equipped with coiled tubing (CT) equipment can help operators greatly reduce the complications associated with laying offshore flowlines. Recently, a service company specializing in coiled tubing...