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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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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Solution to Supplemental Case: Ranger Supply Company This case is simply intended to force students to think about reasons for or against international business. As with most cases‚ there are no perfect solutions‚ but there are some general conclusionsthat can be drawn.a.Some of the more obvious factors to consider are:1.Competition. There are similar distributors in Canada‚ whereas Eastern Europe may not havean organized system for the distribution of office supplies. Yet‚ some European firms (likethe
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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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Offshore Drilling Does anything out weigh the importance of our planet’s health? You would be surprised by the number of people who look the other way when it comes to keeping the planet clean. Offshore drilling is just one of the major environmental issues that has existed for many years and still continues to be a problem. The topic of offshore drilling not only touches on environmental issues but also political‚ economic‚ and ethical issues. All of these tie into the huge debate over offshore
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TITLE: Water Based Drilling Fluid Analysis EXECUTIVE SUMMARY: Analysis of drilling fluids is essential to their performance. In this laboratory exercise the aim is to test three drilling fluid samples for; density and rheological properties‚ Fluid loss‚ chemical analysis i.e. testing pH‚ alkalinity‚ testing for chloride ions‚ calcium carbonate‚ calcium‚ bentonite; also determining the amount of solids present in the samples as well as volumes of oil‚ water and solids contained in the sample‚ and
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traditions of the Gwich’in forever. Politicians‚ environmentalists‚ economists and neighbors now fight over the prospect of oil drilling in the Arctic National Wildlife Refuge. Many of the arguments for drilling are worth consideration; however‚ in comparison to the evidence against it‚ they are neither convincing nor compelling. In order to fully understand why drilling in the Arctic National Wildlife Refuge is such a big deal; we need to understand the history of the refuge. ANWR was created in
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No Oil Drilling In Protected Areas Oil‚ or petroleum‚ is a complex mixture of various hydrocarbons and rock minerals found below the earth ’s surface. When the oil is extracted from the ground it is then refined into various gases or fuels and as a raw material‚ it can be used to make plastic‚ pesticides and many more uses. Oil drilling is a process of perforating the earth’s surface and rock layers to extract fossil fuels or oil for energy productions. Oil is found all over the world and it
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