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A service rig is a mobile platform loaded with oil industry service equipment that can be driven long distances within the oil fields to service wells. Unlike drilling rigs, service rigs return to a particular well many times.〔("Service Rig vs Drilling Rig" ). ''Service Rig Drive''.〕 There are several specialized types of service rigs: the carrier, the pumptruck, the doghouse, a 5 ton equipment truck and several crew vehicles. The rigs usually travel in a convoy, because all of the component rigs are needed for proper oil well servicing. The crew use the equipment on the rigs to provide a variety of services, including completions, work-overs, abandonment's, well maintenance, high-pressure and critical sour-well work and re-entry preparation. Offshore oil rigs are serviced by floating versions of the same equipment. ==Vehicles/Equipment== The Rig, or Carrier, is a mobile truck with a derrick and a cab for one driver. Once secured on location, the derrick is elevated to standing position with the use of hydraulics. After that, the rest of the rig can be assembled and the service process initiated. The Pumptruck has a large tank on the rear, and is used to pump fluid and store fluid from the well during different stages of the maintenance process. It is assembled using a series of pipes and operated with valves and pressure systems. The Doghouse is a portable building used by the crew members to suit up, eat lunch, and assemble during meetings and breaks. It holds the communications and emergency equipment, a washroom, and has a storage space for inventory and tools.〔("The Service Rig and Supporting Equipment" ). ''Service Rig Drive''〕 The 5 Ton is a large truck which carries tools and other equipment, including tongs, a rod table, and extra pipe. It also pulls the powerhouse from one location to the next. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Service Rigs」の詳細全文を読む スポンサード リンク
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