Xem 1-20 trên 27 kết quả Drilling operations
  • Drilling operations are perhaps the most popular machining process being undertaken today, with their origins being traced back to cutting tool developments in North America in the 19th century. In 1864 toward the latter part of the American Civil War, Steven Morse (i.e. later to design the significant ‘Morse taper’ – for accurate location of the ‘sleeved drills’ into their mating machine tool spindles) founded the Morse Twist Drill and Machine Company in the ‘North’.

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  • Select the correct instructions for the actions in Figure 4.1: For example: A = 2 1. Turn the jack handle anticlockwise to lower the car. 2. Turn the gear wheel anticlockwise to raise the drill. 3. Turn the bolt clockwise to tighten it. 4. Press the top button to stop the motor. 5. Press the largest pedal to stop the car. 6. Pull the handle down to cut the metal bar. 7. Push the bar down to raise the load

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  • Functions of Drilling Fluids A drilling fluid, or mud, is any fluid that is used in a drilling operation in which that fluid is circulated or pumped from the surface, down the drill string, through the bit, and back to the surface via the annulus. Drilling fluids satisfy many needs in their capacity to do the following [M-I llc]: . Suspend cuttings (drilled solids), remove them from the bottom of the . . . . . . .

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  • Metal Removal Cutting-Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines Grooving and Threading Shaping and Planing Hole Making Processes Drills and Drilling Operations Drilling Methods and Machines Boring Operations and Machines Reaming and Tapping Multi Point Machining Milling Cutters and Operations Milling Methods and Machines Broaches and Broaching Saws and Sawing Abrasive Processes Grinding Wheels and Operations Grinding Methods and Machines Lapping and Honing...

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  • These exercises have been made to fit the content of the book Pressure Control During Oil Well Drilling http://bookboon.com/no, a book that was revised and updated in 2012, mostly on basis of input from my students). Also in present book all the exercises have been solved by students in the relevant course at the Department of Petroleum Engineering and Applied Geophysics at NTNU of Trondheim, Norway. It would be highly appreciated if the readers contacted me at pal.skalle@ntnu.no with comments to this collection of exercises....

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  • Upcoming Chapters Metal Removal Cutting-Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines Grooving and Threading Shaping and Planing Hole Making Processes Drills and Drilling Operations Drilling Methods and Machines Boring Operations and Machines Reaming and Tapping Multi Point Machining Milling Cutters and Operations Milling Methods and Machines Broaches and Broaching Saws and Sawing Abrasive Processes Grinding Wheels and Operations Grinding Methods and Machines Lapping and Honing ...

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  • take steps to resume operations. • Establish a recovery team, if necessary. Establish priorities for resuming operations. • Continue to ensure the safety of personnel on the property. Assess remaining hazards. Maintain security at the incident scene. • Conduct an employee briefing. • Keep detailed records. Consider audio recording all decisions. Take photographs of or videotape the damage. • Account for all damage-related costs. Establish special job order numbers and charge codes for purchases and repair work. • Follow notification procedures.

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  • industry spending, analysis of the economic impacts of this activity, and projections of future drilling, natural gas production, and related economic impacts (Considine, et al., 2009, 2010). Unlike the previous studies, however, this report estimates the impact Marcellus production has on prices for natural gas and expenditures for natural gas and electricity in Pennsylvania. This report also presents an analysis of labor market and sales tax data that affirms the economic stimulus provided by the Marcellus industry.

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  • .Drill faster and straighter with the HD712 drifter The Furukawa HD712 drifter combines powerful penetration with agility and easy operation. Equipped with features that maximize efficiency, the HD712 drifter sets the standard in high-performance drilling: Maximize operator performance with the ultimate in ergonomic cab designs. HCR 1200 ED cabs are ergonomically friendly with features that reduce operator fatigue. Cabs are 43" (1,100mm) with ROPS/FOPS standard.

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  • As reported in the financial statements of each AMC, fund expenses can be divided into management fees and administrative fees. Expense ratio is the ratio between total fund expenses to fund’s assets. Administrative or operating expense excluded management fees of AMCs managing large number of funds are considered to be constant. Thus, when management fee is excluded, fund expense ratio is lower. Fund expenses excluded management fees indicate fund operation efficiency. Management fees measures security selection skills of fund manager.

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  • Requires improvements in the whole column: – Sub 2 μm particles Porous for optimum mass transfer New bridged hybrid particle required for pressure tolerance (up to 15000 psi) Sizing technology for narrow particle size distribution – Column hardware New frit technology to retain particles New end fittings for high pressure/low dispersion operation – Packing technology New column packing processes to optimize stability

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  • Hydraulic fracturing, like any deep drilling operation, is subject to the risk of leaks and spills that can cause areas to be contaminated by hazardous waste. In 1980, the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) provided for the clean-up of abandoned hazardous waste and established liability to those who released the wastes to pay for clean-up [18]. Yet oil and gas exploration is exempt from clean-up of accidental spills, leaks, and problems from underground injection via the Energy Policy Act of 2005 [19].

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  • Osteoporosis is a complex systemic skeletal disease that leads to an increased risk of fracture, usually of the vertebra, hip, wrist and humerus. The disorder is characterized by reduced bone mineral density (BMD), disrupted bone microarchitecture and alterations in the amount and variety of proteins in bone. During the last years a better understanding of the cellular mechanisms operating in bone remodeling, both for healthy and affected bones, was gained [26].

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  • This acknowledgment is necessary if I am to say thanks to some experts to whom I am indebted. There is Captain Charles Benjamin, who read over the aviation parts of this book with pursed lips and a belligerent attitude toward questionable statements of fact or observation. There is Dr. John Drury Clark, whose authoritative knowledge of rocket fuels was the basis for admitted but not extravagant extrapolation on my part.

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  • When operators drill oil and gas wells, they typically remove topsoil from the well site and lay a well pad, where the drilling rig is located. Other equipment on site can include generators and fuel tanks. In addition, reserve pits are often constructed to store or dispose of water, mud, and other materials that are generated during drilling operations, and roads and access ways are often built to move equipment to and from the wells. Generally, these activities can degrade the environment in three ways: • Air quality.

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  • After drilling the well, the operator may perform interim reclamation—the practice of reclaiming surfaces that were disturbed to prepare a well for drilling but that are no longer needed. For example, operators may need a 10-acre drill pad to safely drill a series of wells. However, once the wells are drilled, operators may only need 4 acres to safely service the wells over their lifetime. In this case, the operator could reseed and regrade the 6 acres of the initial pad that are no longer needed.

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  • The fact that electric arc could operate was known for over a 100 years. The first ever underwater welding was carried out by British Admiralty – Dockyard for sealing leaking ship rivets below the water line. Underwater welding is an important tool for underwater fabrication works. In 1946, special waterproof electrodes were developed in Holland by ‘Van der Willingen’. In recent years the number of offshore structures including oil drilling rigs, pipelines, platforms are being installed significantly.

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  • that can occur during the various phases of oil and gas recovery from subsurface reservoirs including production, drilling, hydraulic fracturing, and workover operations. Formation damage assessment, control, and remediation are among the most important issues to be resolved for efficient exploitation of hydrocarbon reservoirs. Such damage is caused by various adverse processes, including chemical, physical, biological, and thermal interactions of formation and fluids, and deformation of formation under stress and fluid shear.

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  • 6 Process Monitoring and Control of Machining Operations 6.1 6.2 6.3 Robert G. Landers University of Missouri at Rolla Introduction Force/Torque/Power Generation Cutting Force Models • Force/Torque/Power Monitoring • Force/Torque/Power Control Forced Vibrations and Regenerative Chatter Regenerative Chatter Detection • Regenerative Chatter Suppression 6.4 6.5 6.6 Tool Condition Monitoring and Control Tool Failure • Tool Wear A. Galip Ulsoy University of Michigan Other Process Phenomena Burr Formation • Chip Formation • Cutting Temperature Generation Richard J.

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  • Chapter 3 INHALATION HAZARDS IN REFINERIES INTRODUCTION Operations of the petroleum industry can logically be divided into production, refining, and marketing. Production includes locating and drilling oil wells, pumping and pretreating the crude oil, recovering gas condensate, and shipping these raw products to the refinery or, in the case of gas, to commercial sales outlets. Refining, which extends to the conversion of crude to a finished salable product, includes oil refining and the manufacture of various chemicals derived from petroleum.

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