The oil and gas industry, as a whole, is considered to be a stream of activities from the upstream activities getting natural resources from the ground to the downstream activities purifying them for use as fuel or plastic and other things. Mar 16, 2012 introduction offshore drilling is searching for petroleum and gas below water surface, mainly in seas and oceans. Pdf drillingoperationsmodule1introductiontodrilling. Most commonly, the term is used to describe oil extraction off the coasts of continents, though the term can also apply to drilling in lakes and inland seas. An introduction on offshore engineering and technology. During the first day, the overall drilling process.
Offshore drilling is just one of the major environmental issues that has existed for many years and still continues to be a problem. Modern and advanced drilling techniques and methods have. An introduction to transocean offshore drilling and operations free download as powerpoint presentation. Drilling a well is the only way to access a reservoir and establish what is there. Fatal accidents, eloquent injuries, the loss of assets, and damage to the environment are results of risks associated with offshore drilling operation that negatively influence the. A semisubmersible is the most common type of offshore drilling rig, used for drilling in waters more than 300 feet 90 meters deep. Operating company representatives petronas carigali, exxonmobil, shell, murphy. Drilling one of the remarkable accomplishments of the petroleum industry has been the development of technology that allows for drilling wells offshore to access additional energy resources. Law of the peoples republic of china for oil industry of mobile offshore drilling ship platform operation permission regulations provisions.
Since then, the number of offshore wells increased dramatically in the us, until the number of wells in the gulf of mexico only reached an increasable 3858 wells. The development of rotary drilling, preparations for drilling the operator, the contractor, costs the reservoir, exploration methods, site surveys, offshore platform types drilling from fixed platforms and mobile drilling units, the offshore rig and its equipment basic components, the drill floor, derrick and drawworks, motion. The topic of offshore drilling not only touches on environmental issues but also political, economic, and ethical issues. Drilling operationsmodule1 introductionto drilling. Tug boats towing a jackup rig into position how the offshore drilling industry works. Wells are constructed from concentric strings of steel casing, cemented in place with a wellhead on top and a completion inside. Introduction to onshore drilling drilling rig drilling. Operation, inspection, maintenance and storage are all critical and discussed in this chapter. Jul 16, 2014 this is a basic, broad introduction to offshore drilling and jackup rigs. The emphasis is on the theory behind these drilling elements in order to develop a greater understanding of the principles involved in drilling a well. Spartan offshore has been actively engaged in the offshore contract drilling business operating various types of rigs since 2002.
Some offshore structures are classified as mobile offshore drilling units. A semisubmersible is the most common type of offshore drilling rig, used for drilling in. Who should attend ideas create drilling solutions visit us at. Every concept visualized through powerful drilling animations, vivid graphics, and detailed explanations. This is a lessonbylesson distributed learning course. Use milled steel with large teeth for drilling soft formations and tungsten carbide buttons for drilling harder formations. This chapter is intended to be used as a ready reference to assist the drilling rig operator with the structures that are critical to the drilling operation. This offshore engineering course 035022 will introduce the students to the fundamental disciplines of the oil industry, such as offshore structure, offshore foundation, drilling and production, offshore. Spartan offshore is actively developing strategic opportunities to grow its business in key international markets such as mexico, the middle east, southeast asia and india. Recommendations for working out a directional drilling plan. Oil and gas is drilled with help of different offshore structures, for example rigs and vessels.
An introduction to transocean offshore drilling and. Company overview transocean heritage and legacy assets people and equipment drilling offshore wells arrival on location primary drilling equipment offshore well construction life offshore. Overview of exploration and production activities august 2001 page 3 dti sea 1 introduction 1. The drilling engineering workbook is a correspondence distributed learning course which covers the important elements of drilling a well. Fatal accidents, eloquent injuries, the loss of assets, and damage to the environment are results of risks associated with offshore drilling operation that negatively influence the reputation of this industry. The petroleum industry has successfully developed and implemented technologies to drill offshore wells, to gain access to these additional. My goal is to make this series as nontechnical as possible so that anyone will be able to. Introduction to offshore structure linkedin slideshare. A jackup drilling rig is a floating barge with drilling equipment on its deck and long support legs, and is used in shallow waters up to 300 feet 90 meters.
All of these tie into the huge debate over offshore drilling and its impacts on the. Offshore drilling presents environmental challenges, especially in the arctic or. Consequently they are rarely found on offshore rigs. This article will give a brief introduction to the shipyards development on. Chapter 6 drilling and well construction gene culver geoheat center klamath falls, or 97601 6. Introduction drilling structures are a very important part of the drilling rig.
Background on offshore drilling and moratoriums introduction the outer continental shelf ocs is managed by the executive branch through a set of laws and policies enacted by the legislative branch over almost sixty years. Petroleum and natural gas deposits are found in rocks in sea bed. Jun 24, 2014 a jackup drilling rig is a floating barge with drilling equipment on its deck and long support legs, and is used in shallow waters up to 300 feet 90 meters. Gerhard thonhauser, montanuniversitat leoben drilling engineering starts with developing an understanding of the geological setting and boundary conditions where the well is going to be drilled. Dealing with risk in offshore drilling introduction the blowout, fire and sinking of the deepwater horizon in april 2010, with the tragic loss of 11 lives, together with a major pollution incident, put the issue of risk in offshore drilling operations into stark focus. The offshore drilling industry and its phases from exploration to extraction. Drilling operation an overview sciencedirect topics. Dealing with risk in introduction in offshore drilling. With the price of oil steadily climbing and president obamas promise to open up more of the united states coastline to offshore oil and gas drilling, i thought it would be fun to explain how oil and gas wells are drilled in the ultradeep waters of the gulf of mexico and beyond. Offshore drilling an overview sciencedirect topics. Introduction to directional and horizontal drilling jim short. Unesco eolss sample chapters petroleum engineering upstream offshore drilling and production j. Introduction iadc international association of drilling. Land rigs, jackups, platforms, tenderassist, semisubmersibles and drillships.
Selfelevating jackup exploration drilling platform. There are two main categories of offshore drilling units, fixed and mobile. The techniques and equipment for drilling offshore wells i. Write few movable drilling platform names and draw free sketch. Main design features are portability and maximum operating depth. Offshore drilling typically refers to the discovery and development of oil and gas resources which lie underwater. Khaled alnabhani, in methods in chemical process safety, 2018. Big rigs drill very deep holes, 20000 feet ft, 3000 meters m or more. Introduction to drilling drilling rig petroleum reservoir. Take this animated course to learn the fundamentals of drilling. Supply companies catering services, supply boat, etc. A mobile offshore drilling unit modu configuration is largely determined by the variable deck payload and transit speed requirements.
Offshore access to oil and natural gas resources february 2017. Managed pressure drilling candidate identification model was part of a project. Introduction after the well and access road have been sited and constructed, as described in the previous chapter, the operator moves in a rig and starts the drilling phase of operations. An introduction to rig types and basic drilling string. Final module 5 an introduction to drilling july 2017.
Offshore refers to drilling of oil and gas reservoirs away from the seabed. However, the decision to drill is not taken solely on geological grounds. By the end of the article, you can expect to gain a basic understanding of the following. Redirecting revenues from drilling to invest in the future of clean energy offers a bipartisan solution to expanding the nations energy supply while also mitigating global warming. Introduction to onshore drilling free download as powerpoint presentation. For some readers, it may be wise to read this section first in order to fully understand the text. This basic drilling technology course addresses the technology used to drill wells from a fundamental view point. Introduction to offshore operations provides all newcomers to the industry with an understanding of the offshore installations, subsea production facilities and onshore support requirements which ensure that the oil and gas industry can function as a cost effective and viable business. Drilling rigs like these bore or drill holes into the earth. Introduction offshore platforms are constructed to produce the hydrocarbons oil and gas. The offshore drilling industry has made tremendous technological strides since a freestanding structure for drilling was built in 1937 in the gulf of mexico in 14 feet of water, more than a mile offshore. We are now developing our offshore petroleum resources, and this has the potential to have significant economic and social impacts on our province.
Schlumberger introduction to directional drilling by. Please be aware of the scope and conditions of classification. This chapter provides the basics of equipment and methods used for drilling and completion of. Additionally, different offshore rules and their regulators are introduced in the. Government requirements, economic factors drilling costs, transport. An introduction to offshore drilling and jackup rigs. Dealing with risk in offshore drilling introduction the blowout, fire and sinking of the deepwater horizon in april 2010, with the tragic loss of 11 lives, together with a major pollution incident, put the issue of risk in offshore drilling operations into. Offshore drilling is the process of drilling for oil offshore in places such oceans or sea beds through an oil rig.
The drilling and construction interaction is described below. Take this free, animated course to learn the fundamentals of drilling. The nations management of the ocs, an area of land which begins three miles from the shoreline. Type of drilling rigs all rigs have the same basic components. Subsea drilling, well operations and completions page 6 of 45 introduction a. A well may be produced temporarily to establish the. The longer the teeth the greater the gouging action. Agree the well objectives, schedule, costs, order equipment, place contracts for the rig and services, prepare the site. Stores the crude oil temporarily at the offshore site before its transportation to the shore for processing. Overview of offshore drilling technologies wiley online library. It begins by a brief history of oil well drilling operations and drilling. Drilling contractors personnel noble or trident or forex. Teodoriu encyclopedia of life support systems eolss since late 1890s, independent companies have tried to access oil and gas from offshore.
This report mainly discusses the major differences between onshore and offshore drilling rigs used in petroleum industry. Pdf introduction to directional and horizontal drilling. Service companies halliburton, schlumberger, bj services. Due to their mobility, jackup rigs can be used to drill exploration wells, appraisal wells. The casing transmits the required mechanical cutting forces and the hydraulic energy to the rock, while simultaneously casing the wellbore. Equipment and procedures involved with drilling oil and gas wells are described for those who are interested in understanding the drilling process regardless of academic background. Introduction international association of drilling. Design and construction of the topside are progressed parallel to the drilling, allowing production to start soon after deck installation.
Offshore drilling is a process where a borehole is drilled through the seabed. Offshore engineering cover a vast area of knowledge. Offshore drilling rigs drilling offshore drilling rigs many of the worlds potential reserves of hydrocarbons lie beneath the sea, and the hydrocarbon industry has developed techniques suited to conditions found in the offshore, both to find oil and gas and to successfully produce it. Pdf overview of offshore drilling technologies researchgate. Many would assume that offshore drilling could not have very much effect in regards to onshore. This 1 hour long course includes modules focused on an introduction to oil and gas, fundamental drilling equipment, and the mud circulation system. Prior to the commencement of drilling operations, a person who has been issued a drilling permit must notify by certified mail any local government. Basic drilling technology training course petroskills bdt. The well is created by drilling a hole, isolating with casing and cement and repeating this process until the target depth and location are reached. A glossary of drilling terms is included at the end of this chapter. Fundamentals of petroleum engineering drilling operations. Medium corporation an introduction to offshore drilling and jackup rigs jackup rigs are used to drill wells in shallow waters, typically less than 400 ft of water, and can be used to drill wells to a total depth td of 30,00035,000 ft. Introduction to offshore operations opito consulatncy.
Introduction to drilling engineering and well design. Introduction offshore drilling is searching for petroleum and gas below water surface, mainly in seas and oceans. The earliest know instance of casing drilling was in russia in the 1930 s. An introduction to drilling offshore oil wells trees. This offshore engineering course 035022 will introduce the students to the fundamental disciplines of the oil industry, such as offshore structure, offshore foundation, drilling and production, offshore environment and design criteria.
Offshore drilling operations are dangerous and risky operations. Drilling and drill bits tri cone bit with milled steel left or tungsten carbide teeth right designed to gouge and scrape. Show full abstract the development of offshore engineering facilities, and is one of the drilling platform builders. Intended for drilling engineers and supervisors in charge of development operations involving deviated wells, the book may be profitably consulted by project and design engineers working in well siting. A well may be produced temporarily to establish the reservoir potential. An introduction to drilling offshore oil wells trees full.
433 1236 1201 1317 222 192 778 1436 850 656 492 1456 776 1224 1139 820 1520 268 1528 976 1419 556 1285 263 1430 1346 1084 919 438 463 1153 842