DRILLING THEORY Principles of percussive drilling In percussive drilling‚ the energy required to break the rock is generated by a pneumatic or hydraulic rock drill. Machines of this kind build up a pressure which‚ on being released‚ drives the piston forward (Fig. 1). The piston strikes on the shank adaptor. The kinetic energy of the piston is converted into a stress wave which travels along the drill string to the rock. In order to obtain the best possible drilling economy the whole
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DRILLING FLUIDS The key to making the rotary drilling system work is the ability to circulate a fluid continuously down through the drill pipe‚ out through the bit nozzles and back to the surface. The drilling fluid can be air‚ foam (a combination of air and liquid or a liquid. Liquid drilling fluids are commonly called drilling mud. All drilling fluids‚ especially drilling mud‚ can have a wide range of chemical and physical properties. These properties are specifically designed for
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BC13541 REAE 5303 Spring 2013 Nepa Case Study Deepwater Horizon Oil Spill (BP Oil Spill) On April 20‚ 2010 a catastrophic explosion on the Deepwater Horizon off shore drilling platform caused the largest single release to the environment due to oil drilling. This explosion killed 11 workers and injured 17. This oil spill is very controversial because it can be questioned if this spill could have been prevented and what exactly went wrong. There is much debate on who is to blame
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CASE APPLICATION: FOUNDATIONS OF CONTROL Deepwater in Deep Trouble When all is said and done‚ which may not be for many years‚ it’s likely to be one of the worst environmental disasters‚ if not the worst‚ in U.S. history.61 When British Petroleum’s (BP) Deepwater Horizon off-shore rig in the Gulf of Mexico exploded in a ball of flames on April 20‚ 2010‚ killing 11 employees‚ it set in motion frantic efforts to stop the flow of oil and to initiate the long and arduous cleanup process. Although
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replacing pipe from the well when it is necessary to change the bit or other piece of the drill string‚ or when preparing to run certain tests in the well bore. • Top drive o A mechanical device on a drilling rig that provides clockwise torque to the drill string to facilitate the process of drilling a borehole. • Kelly hose o is a flexible‚ steel reinforced‚ high pressure hose that connects the standpipe to the kelly. • Goose neck o A thick metal elbow connected to the swivel and standpipe
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The National Commission on the BP Deep Water Horizon Oil Spill and Offshore Drilling released a report in January 2011 to the President of the United States indicating that the April 20th‚ 2011 Deep Water Horizon’s explosion and the resulting oil spill at the Macondo well was a foreseeable and preventable disaster. The Commission’s report indicated that a number of easily identifiable mistakes by British Petroleum‚ Transocean‚ and Halliburton ultimately led to the devastating oil spill which lasted
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English 102 Monday 6pm 2/13/2012 Domestic Oil Drilling: Benefits and Risks. Senator Everett Dirksen once noted “The oilcan is mightier than the sword”. In today’s world‚ it is easy to see why oil can be considered the most important resource to hold. Without oil‚ many of the common day occurrences we take for granted would be impossible. Oil is used for almost everything; from the fuel used to drive our vehicles‚ to the plastics used in every facet of life‚ and providing the heat needed to live
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everyone love swimming in the ocean and seeing all the pretty sea life? Some people do‚ and when people are offshore drilling they can cause a lot of problems if something goes wrong. The biggest concern by environmentalist is not a spill‚ but the pollution of the air and water‚ damage to the ocean bottom and debris that washes ashore from day-to-day operations of oil and gas rigs. Oil Drilling can lead to jobs being endangered‚ animals dying‚ and damaging the eco system. So many animals are dying because
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head: PROPOSED DRILLING IN ANWR Proposed Drilling in ANWR Abstract Due to high cost of crude oil‚ the nation is in turmoil over prices of gas prices. This letter is a proposal for drilling in the ANWR (Arctic National Wildlife Refuge). Drilling in the ANWR is meant solely to reduce the reliability on foreign crude oil and to help the nation in its economic down side due to the rise in gas prices. Drilling In this proposal
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Drilling rig A drilling rig is a machine which creates holes in the ground. Drilling rigs can be massive structures housing equipment used to drill water wells‚ oil wells‚ or natural gas extraction wells‚ or they can be small enough to be moved manually by one person. They sample sub-surface mineral deposits‚ test rock‚ soil and groundwater physical properties‚ and also can be used to install sub-surface fabrications‚ such as underground utilities‚ instrumentation‚ tunnels or wells. Drilling rigs
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