When equipment is lost in a hole it can be recuperated by fishing or if this fails by sidetracking around the lost equipment. Sidetracking involves plugging the lower portion of a well and drilling around the obstruction. If a well is successful, the entire costs of the drilling, including sidetracking is capitalized.
The data acquired during the seismic survey is processed, partly on board and partly in a computer centre, using a variety of techniques until the final seismic section is obtained. At this stage the data may also be loaded onto an interpretative workstation rather than the traditional paper. The section is then “interpreted”, i.e. “read” by geologists to determine the most fruitful area to drill an exploratory (wildcat) well.
Two LNG Terminals on the US Gulf coast. Freeport received FERC approval to begin operations in July 2008 and Sabine in August 2008
All products and services required to install and operate production installations on the seabed
Salt cavern leaching is the process of drilling a well into a salt formation and cycling large amounts of water through the well to dissolve some of the salt and thus create a cavern for the storage of natural gas. Salt cavern leaching is used to create caverns in both salt dome and salt bed
The further movement of hydrocarbons into reservoir rock in a hydrocarbon trap or other area of accumulation is secondary migration (see also migration)
The installation of equipment or application of techniques to prevent migration of reservoir sand into the wellbore or near-wellbore area. In weak formations, sand control may be necessary to maintain the structure of the reservoir around the wellbore. In other formation types, the migration of sand and fines into the near wellbore area may severely restrict production. Each of these conditions requires different treatments. The principal sand-control techniques include gravel packing and sand consolidation
