Drilling Rig free essay sample

Drilling rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land or marine-based structures (such as oil platforms, commonly called offshore oil rigs even if they dont contain a drilling rig). The term rig therefore generally refers to the complex of equipment that is used to penetrate the surface of the Earths crust. Swanson Drilling East Texas at dusk Drilling rigs can be: * Small and portable, such as those used in mineral exploration drilling, water wells and environmental investigations. * Huge, capable of drilling through thousands of meters of the Earths crust. Large mud pumps circulate drilling mud (slurry) through the drill bit and up the casing annulus, for cooling and removing the cuttings while a well is drilled. Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or natural gas; and in remote locations there can be permanent living accommodation and catering for crews (which may be more than a hundred). We will write a custom essay sample on Drilling Rig or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Marine rigs may operate many hundreds of miles or kilometres distant from the supply base with infrequent crew rotation or cycle. Petroleum drilling industry Swanson Drilling drilling directional oil wells in East Texas Oil and natural gas drilling rigs can be used not only to identify geologic reservoirs but also to create holes that allow the extraction of oil or natural gas from those reservoirs. Primarily in onshore oil and gas fields once a well has been drilled, the drilling rig will be moved off of the well and a service rig (a smaller rig) that is purpose-built for completions will be moved on to the well to get the well on line. This frees up the drilling rig to drill another hole and streamlines the operation as well as allowing for specialization of certain services, i. . , completions vs. drilling. Water well drillingNew portable drillcat technology uses smaller portable trailer mounted rigs with shorter 10 foot (3. 0Â  m) drill pipe. DIY users and missionary groups use these to drill water wells as they can be operated by 1 or 2 people with a minimal skill level. The shorter drill pipe also allows a much smaller mast, which gives a smaller and lighter rig which is cheaper to ship overseas and can fit in a standard 20 foot (6. 1Â  m) shipping container. Portable trailer mounted drilling rigs have drill ratings from 300 to 800 feet (91 to 240 m) depending on mud pump flow and pressure ratings.