To better serve our many subscribers that are working from home during this time, we are offering digital issues of trenchless technology magazine. Used in combination with another technology hydraulic fracturing horizontal drilling is enhancing production flow rates in the marcellus shale and other unconventional oil and gas holdings. The horizontal drilling or the directional drilling is quite easy to understand. Horizontal drilling an overview sciencedirect topics. Training the strength of our trainers stems from our experience planning and successfully delivering challenging erd and horizontal wells around the globe for over 25 years. In a horizontal well, the bit and pipe are lowered down into the well and the bit drills a path that curves from vertical to horizontal. Two improvements to the original work have made the economics of solvent extraction favorable. How to evaluate alternative cleanup technologies for underground storage tank sites. This time lapse was also due to the necessary evolution of technology. Drilling engineering a distributed learning course forward the drilling engineering workbook is a correspondence distributed learning course which covers the important elements of drilling a well.
Although horizontal drilling has been used for nearly a century, its use as a source of u. We reached out to the hdd rig manufacturers to share with our readers their product fleet that includes compact, midsize and maxi rigs. Horizontal drilling can increase the contact between the reservoir and the wellbore. Horizontal directional drilling manual and the horizontal directional drilling good practices guidelines published by the north american society for trenchless technology nastt.
Sep 19, 2018 horizontal directional drilling hdd is a basic trenchless technology that involves drilling into the earth to create a horizontal bore under the surface along a planned pathway through which pipes and conduits may pass. In ground source heat pump gshp systems, the drilling cost of ground heat exchangers ghes needs to be minimized for the dissemination of the systems. How to evaluate alternative cleanup technologies for. Horizontal directional drilling process knowledge of the directional drilling process by the reader is. Basic drilling technology training course petroskills bdt. Horizontal directional drilling hdd is a technology widely. Fishbone can be obtained by drilling each branch rib. Field test of horizontal ground heat exchangers installed. Trenchless technology magazine trenchless installation. Jul 21, 2017 the horizontal drilling or the directional drilling is quite easy to understand.
Some examples of advancements in drilling technology are presented below. The methodology of selecting horizontal well candidates based on geology, reservoir characterization, drilling, and. 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. Horizontal directional drilling guide, we have include our an nual hdd rig catalog. This technology came to implementation around in the 1920s and is advancing till date. Horizontal directional drilling hdd is a nodig drilling technology which is commonly used for drilling. Invented in the 1920s, directional drilling or horizontal directional drilling hdd, as it is now known, is a trenchless technology that was originally used in oil fields to increase oil production. Horizontal drilling also helps us design our wells with control systems to.
Horizontal directional drilling process knowledge of the directional drilling process by the reader is assumed, but some. Horizontal drilling is a commonly used technology because drilling at an angle other than vertically can stimulate reservoirs and obtain information that cannot be done by drilling vertically. Since most oil wells are drilled in a vertical direction, horizontal drilling helps in stimulating the well in a different way to extract most of the produce from the reservoir. Pdf directional well planning and trajectory design. The interest in drilling horizontal wells can be attributed to the following major reasons. Upstream and downstream, new technologies are not only helping the petroleum industrys nematodos en bovinos pdf bottom line, they are. Pdf introduction to directional and horizontal drilling. The components of a horizontal drilling rig used for pipeline construction are similar to those of an oil well drilling rig with the major exception being. Most horizontal wells begin at the surface as a vertical well. Horizontal directional drilling best management practices manual this best management practices bmp manual has been designed as a comprehensive decisionmaking tool which covers many facets of hdd planning, engineering, construction, and environmental protection and mitigation, including management of the drilling muds and contingency planning. Avoiding underground utilities during horizontal directional. Once the hdd creates a bore of suitable size which may require one or multiple passes by the drilling apparatus the. Mar 10, 2014 while horizontal drilling dates back to as early as 1929, it wasnt widely used until the 1980s. Done together, horizontal drilling and hydraulic fracturing can make a productive well where a vertical well would have produced only a small amount of gas.
Drilling and completion of horizontal wells 2 introduction horizontal drilling is the process of steering a drill bit to follow horizontal path oriented approximately 90 from vertical through the reservoir rock. The components of a horizontal drilling rig used for pipeline construction are similar to those. In 1929, the first truly horizontal wells were drilled at texon, texas and many. The first documented springpole well in america was drilled in 1806 by david and joseph ruffner in west virginia. The reentry well costs could be further reduced by using the coiled tubing drilling technique. Horizontal directional drilling best management practices manual. Kruse deltares national institute, unit geoengineering email. Hdd is a trenchless technology that uses surfacelaunched equipment to drill underground horizontally and install pipes, conduits, and cables. A well that is turned horizontally at depth, providing access to oil and gas reserves at a wide range of angles. During the drilling operation, our automated drilling platform enables directional drillers to make quick, smarter decisions in realtime, helping you to stay on plan and achieve predictable and consistent results. Petroleum engineering upstream horizontal and multilateral well technology sada joshi encyclopedia of life support systemseolss the chapter also describes various oil fields where horizontal and multilateral wells are used.
The objective of steering a well trajectory in the right direction and hitting a geological target. Horizontal directional drilling manual 1 and the horizontal directional drilling good practices guidelines 2 published by the north american society for trenchless technology nastt. In earlier times only single directional drilling was possible. Once the proper angle is achieved, drilling resumes in a fully horizontal direction.
Hdd is used in several industries, such as utilities and telecommunications, at sites with limited space e. Horizontal drilling operation manual and kill sheet with survey sheet. While the use of directional or horizontal drilling technology has increased dramatically since the mid1980s, the technology itself dates back to 1891, when the first patent was granted for equipment to place a horizontal hole from a vertical well. Horizontal directional drilling techniques drilling in soft. A horizontal well is one that is typically drilled parallel to the bedding plane of an oil or gas bearing. This basic drilling technology course addresses the technology used to drill wells from a fundamental view point. The emphasis is on the theory behind these drilling elements in order to develop a greater understanding of the principles involved in drilling a. Absract directionally drilled wells represent an efficient way to reach special targets that are difficult to reach using vertically drilled wells. Horizontal drilling can be referred to as the directional drilling of an oil well in a horizontal direction rather than vertical. Jan 28, 20 this is a shame, because the truth is that, of the two technologies, horizontal drilling is the real marvel of engineering and scientific innovation.
The methodology of selecting horizontal well candidates based on geology, reservoir characterization, drilling, and completion aspects of a project will be presented. In the contrast, horizontal drilling allows the miners in the oil and gas industry to drill at a wide range of. The information provided in this section comes directly from the manufacturers to give you just a. Horizontal drilling by lynn helms explanation horizontal drilling is the process of drilling a well from the surface to a subsurface location just above the target oil or gas reservoir called the kickoff point, then deviating the well bore from the vertical plane around a curve to intersect. Horizontal directional drilling guide from tip to tail. Horizontal drilling also helps us design our wells with control systems to protect groundwater through the life of the well. As of march 28, 20, 1748 active drilling rigs existed in the united states. This is especially important in alaska where drilling costs are high. Horizontal wells grew in popularity during the 1980s, as natural.
Drilling progresses until the drill bit is a few hundred feet above the target rock unit. While horizontal drilling dates back to as early as 1929, it wasnt widely used until the 1980s. The equipment, motors, and other technology used in the process took a while to see significant upgrades. Horizontal directional drilling operations pdf kill sheet excel survey sheet excel horizontal well drilling has become one of the most valuable technologies ever introduced into the oil business. The advancement and use of horizontal drilling technology increases the contact surface area which, in turn, increases the amount and rate of oil recovered from a well pair. The process involves drilling a well vertically to a certain depth and then bending the path of the drilling until it extends horizontally. It reached 58 feet in depth, containing 40 feet of bedrock. Introduction to directional and horizontal drilling jim short.
Odfjell drillings 40 years of experience within drilling operations and projects have enabled us to develop technology and frontend, specialised inhouse teams who are able to focus on achieving advanced technology solutions to support our customers needs and improve the results of their operations. The horizontal directional drilling process the tools and techniques used in the horizontal directional drilling hdd process are an outgrowth of the oil well drilling industry. It is a drilling technology that relies on continuous circular rotation of the bit to break rocks, while drilling fluids circulate through the bit and up the wellbore to the surface, making possible to. Horizontal directional drilling hdd is a basic trenchless technology that involves drilling into the earth to create a horizontal bore under the surface along a planned pathway through which pipes and conduits may pass. Lets work together to maximize the value of your assets every step of the way. Advanced horizontal drilling technology also produces positive results for the environment. An overview of horizontal directional drilling and horizontal remediation well technology that was originally developed for the oil and gas industry, with two case studies where this technology has been applied to successfully remediate sites with impacted groundwater. Pdf oil well rig and directional drilling technology. A single horizontal well can replace the need to drill a dozen or even more vertical wells to access a. The trenchless technique horizontal directional drilling. The oklahoma geological survey will offer a horizontal drilling workshop on wednesday, june 18 at the moore norman technology center norman campus. Horizontal drilling directional oil gas well drilling.