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. The construction works of this section involve the installation of twin 600mminternal diameter high density polyethylene hdpe of 1. Feb 21, 2020 consider the required equipment and material handling requirements such as drilling fluid, drilling fluid containment, hdd rig operation, and final product staging. Horizontal directional drilling experience in difficult. Horizontal directional drilling hdd contractors are currently facing heightened environmental scrutiny due to concerns regarding hydraulic fracturing and subsequent migration of drilling fluids. The trenchless technique horizontal directional drilling. By joanna climer hdd for watercourse crossings over the last 30 years, horizontal directional drilling has become the preferred pipeline construction method to cross major waterways. Horizontal directional drilling horizontal directional drilling has been used on a large scale since the eighties. An essential resource for anyone working in the trenchless industry, this authoritative guide provides complete technical information on the design, permitting, construction bid documents, specifications, and construction of hdd applications. Toro downhole tools toro has taken every precaution as to the accuracy of the content and data presented herein, toro makes no. The target, or objective, is the theoretical, subsurface point or. The directional drilling rig then begins the pullback operation, rotating and pulling on the drill string as well as circulating drilling fluids. The components of a horizontal drilling rig used for pipeline construction are similar to those. Directional drilling has become a very important tool in the development of oil and gas deposits.
An introduction to the science of controlled directional drilling. This post contains material from dhddirectional, horizontal, and multilateral drilling and bdtbasic drilling technology. Horizontal directional drilling can be used to install pipes under an obstruction, such as a road plate 26 c, railway or river. These keywords were added by machine and not by the authors. Pdf horizontal directional drilling hdd was established for the installation of pipes, conduits, and cables. Directional drilling is the science of controlling or correcting. The first part of the thesis contains the overview of russian directional drilling. A 34yearold man was fatally injured while working in a fourman crew installing a large diameter water line along a rural iowa roadway mid spring of 2005. Get directional drilling instruction with this animated informational video from the global leader in underground construction. Probably the most important aspect of controlled directional drilling is that it enables. Exit pit worker entangled in horizontal directional drill back reamer summary.
Alvarez forces acting on a bit in an inclined hole side force with zero wob negative bit side force well deviation with rotary assemblies. Trenchless information education center horizontal directional drilling. This process is experimental and the keywords may be updated as the learning algorithm improves. Although mechanical failures of the new directional drilling equipment, mud pump and rig breakdowns, directional control problems, and exploratory horizontal. Development of a standard specification for horizontal. The most obvious signs of a fracout are the visible pooling of drilling mud on the surface, a sudden decease in mud volume returns during drilling operations, or loss in drilling mud pump pressure. Directional drilling is the art and science involving the intentional deflection of a wellbore in a specific direction in order to reach a predetermined objective below the surface of the earth.
Horizontal directional drilling hdd technique for undersea. Pdf this courses is about basics and fundamentals of oil wells. The core of underground inseam directional drilling technology is the controlled drilling process and equipments 2. This section describes why directional drilling is required, the sort of well paths that are used, and the tools and methods employed to drill those wells. Introduction to directional drilling 1239quartz school. A short glossary of the more frequently used terms for directional drilling is included here and is intended only as an aid in understanding directional drilling terminology and is neither a definitive work in the field nor by any means complete. A this drilling motor handbook is for informational purposes only. The petroleum industry did not become fully aware of. Consider material strengths, capabilities, and joining methods. Locations the relative locations of the target and relief wells are calculated. Specialized construction for large waterways and sensitive.
It has also become apparent that the quality of the technical literature describing these advances has not kept pace with that of the advances themselves in many instances. Same as drilling directional oil well starts verticalends horizontal. Each horizontal drilling project is unique, with its own set of challenges. On the third stage the pipe laying is carried out, controlled. 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. This drilling will commence until the drill front is approximately 100 m above the target. This oneweek course is designed for the drill contractor looking to onboard and develop new employees into their horizontal directional drilling business. Stage 4 of the horizontal directional drilling process. Directional drilling procedure overview the installation of underground services by direction drilling is often faster and more economical than traditional open trenching techniques but it does come with some unique risks that must be addressed to work safely. There are at least four such methods for today and each of them has its own features. Introduction to directional drilling 39quartz school. The most significant directional drilling problem identified by operators drilling unconventional wells has been the inability to consistently follow a prescribed well path and to hit and stay within the targets identified collectively by the companys geologists, geophysicists, and reservoir engineers. The hdd circuit i training program gets its name from the original hdd circuit training program renamed hdd circuit ii.
Method pertaining to directional drilling method the initial drill out is carried out using highpressure water through drill rods. Once the hdd creates a bore of suitable size which may require one or multiple passes by the drilling apparatus the. Horizontal directional drilling hdd, with origins in the oil and gas industry, is a trenchless technology employed to install underground pipelines with minimal impacts on the environment or damage to existing infrastructure such as roadways and other surface structures. Guidelines for use of minihorizontal directional drilling for placement of high density polyethylene pipe this report was developed and published with the technical help of the members of the ppi plastics pipe institute, inc. This publication is lesson 1 of unit 3 of the rotary drilling series rds. At this point, there is a hydraulic motor attached between the drill pipe and the drill bit.
Horizontal directionaldriller positions for projects covering the michigan and wisconsin areas. The underground directional drilling technology and. Horizontal directional drilling and boring 02415 2 b. This problem will be discussed further under drilling fluids. Pdf overview on vertical and directional drilling technologies for. Controlled directional drilling is the process of deviating a wellbore along a predetermined course to a target whose location is given as lateral distance from the vertical. More often, it is a preplanned approach to reach a designated target, which can include one or several points off a main hole. Horizontal directional drilling 421 chapter 12 horizontal directional drilling introduction the horizontal directional drilling hdd industry has experienced so much growth in the past two decades that hdd has become commonplace as a method of installation. Directional drilling directional drilling services provide a wide range of solutions from conventional to unconventional drilling applications. 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. The rigs should have a capacity to drill deep directional geothermal wells. First, a pilot bore is made with a suitablesized drilling rig. Ppt directional drilling powerpoint presentation free. The science of controlled directional drilling did not come.
Faqs for horizontal directional drilling empire hdd. Comprehensive coverage of horizontal directional drilling hdd technologies and applications. Horizontal directional drilling hdd is a construction technique whereby a tunnel is drilled under a waterway or other designated area, and a. Years of research have resulted in one of the first design codes for horizontal directional drilling, as well as a. Every site is unique and every horizontal bore design and installation method should be selected to address the characteristics of the site drawing upon the experience of the engineer and directional driller, as well as meeting the needs of the client are essential. Defining the obstacle to be crossed is a key factor in the hdd design process. Since the seventies deltares has been involved in the development and execution of trenchless technologies. Horizontal directional drilling hdd is a method of installing underground pipelines, cables and service conduit through trenchless methods. Directional drilling and spontaneous deviation before describing in full detail the engineering aspects connected to directional and horizontal drilling, it is necessary to consider some of the volume i exploration, production and transport 339 directional drilling fig. Attached to the front of the rods is a cutting head and transmitter, which is controlled by a locator to achieve the correct line and level required. The hdd equipment arrives on site aboard multiple trucks. Purposes of directional drilling drilling engineering.
Schlumberger introduction to directional drilling by victor. Directional drilling petroleum engineering and development studies. It involves the use of a directional drilling machine, and associated attachments, to accurately drill along the chosen bore path and back ream the required pipe. Build up a vertical section is drilled, then, starting at the kick off point, the angle of incidence to the vertical is. The following are some of the more important and commonly used terms. This plan must also include a detailed description as to contingencies for potential fissures of drilling fluid. The significance of using horizontal directional drilling in utility services. Directional drilling procedure utilities infrastructure nz ltd. At one time, it was assumed all oil wells were essentially vertical or the bottom of the hole was directly under the drilling rig. Current expenditures for hydrocarbon production have dictated the necessity of controlled directional drilling to a much larger extent than previously. Carden has taught drilling, horizontal drilling and underbalanced dr. This book introduces the science of deviating a well along a planned course to workers who are already familiar with basic drilling practices and terms. Guidance note horizontal underground directional drilling 6 p a g e regulation 3.
The initial launch of the ditch witch certified training program is focused on horizontal directional drilling hdd, which extends the companys onsite, classroomstyle training to allow novice hdd operators to train online at home, in a dealership, or on a mobile device. Pdf the significance of using horizontal directional. Directional drilling is the choice of installing it. In practice, directional drilling is the practice of drilling nonvertical wells. Directional drilling terminology drilling services. Directional drilling for mineral exploration boart longyear. Ditch witch certified training program will get crews ready.
Horizontal directional drilling experience in difficult conditions case studies for directed technologies drilling, inc. Sohrab zendehboudi phd, alireza bahadori phd, ceng, in shale oil and gas handbook, 2017. The pullback continues until the reamer exits the bore path by the directional drill rig and the pipeline is in place. Directional drilling petroleum engineering and development studies inglis, t. Hdd design basics horizontal directional drilling netwas. Drilling of a relief well right to killa blowout well visible. Predicting and controlling hydraulic fracturing during. The crew was using a horizontal directional drilling hdd machine to pilot bore and pull. Directional drilling the promise and the peril alfred w. Directional drilling an overview sciencedirect topics. Specification for horizontal directional drilling page 2 of 6 specification rsc09 ver 2 ergon energy corporation limited abn 50 087 646 062 6. Gives the types and uses of directional holes, how a well is planned, what information and equipment are needed and how they are obtained and used, and some of the problems associated with directional drilling.
There are several variations, each having their advantages and disadvantages. Directionally controlled drilling to horizontally intercept. Horizontal directional drilling and boring 02415 5 c. It can be used to get back on course if drilling deviates from the desired path. Drilling crews and the keystone inspection personnel will be responsible for the monitoring and detection of fracouts.
Horizontal directional drilling plan february 29, 2012. Directional drilling mud motors and rotary steerable systems. Contractor shall design, furnish, and install the proposed watermain by horizontal directional drilling hdd construction methods, as shown on the drawings and conforming to these specifications. Horizontal directional drilling specialized construction for large waterways and sensitive areas what is horizontal directional drilling. For more information visit trenchless technology magazine. Our horizontal directional driller horizontal directional drilling locations. A properly sized and fully operational swivel will be installed between the reaming assembly at the end of the drill pipe, and the pipeline to restrict torsional stress from being transmitted to the pipeline. The mathematics of directional drilling bit by bit 0m sea relief targetbed kick off point end of build first bit. Horizontal directional boring, also known as horizontal directional drilling hdd for short is a method which enables the installation of underground pipes, cables, conduits, fiber optics and more, by creating the necessary path to insert the needed system. Horizontal directional drilling consists of several installation steps. One source reported that the number of units in use increased by more than a hundred. The mathematics of directional drilling bit by bit with workings curriculum for excellence. Directional drilling dd1 iadc drilling manual evolution of directional drilling since 1900 directional drilling is the science of controlling or correcting a wellbore, along a predetermined trajectory, to one or more underground targets or locations at given horizontal dis placements hd and true vertical depths tvd from the point of origin.
Directional drilling procedure utilities infrastructure uinz. Free downloadable ebooks on conventional drilling, directional drilling, blowout and well control horizontal and directional drilling richard s. Directional drilling is a technique that enables the drill bit to be directed toward a specified coordinate. 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. Directional drilling petroleum engineering and development. The amount of water placed in the pipe is controlled to provide the most advantageous distribution of buoyant forces. Directional drilling is defined as the practice of controlling the direction and deviation of a wellbore to a predetermined underground target or location. Provisory 06 dec 96 confidential directional drilling 1i introduction 1 introduction 1. It is intended to be an aid to the operator and is provided for information and illustration purposes only. Directional drilling or slant drilling is the practice of drilling nonvertical wells. Sidetracking was the original directional drilling technique. Directional drilling commences at the surface as a vertical well.
Directional drilling is a common name for all methods of piping with utilizing of special drilling machinery. Sometimes these challenges relate to logistics, such as site layout or accessibility. Introduction to directional drilling this post contains material from dhd directional, horizontal, and multilateral drilling and bdtbasic drilling technology. The study carried out in this report indicates what has been achieved in the past and will. Development of a standard specification for horizontal directional drilling january 20 6. This definition is the basis for all controlled directional drilling, whether to maintain the wellbore as nearly vertical as possible or as a planned deviation from the vertical. The emphasis is on the theory behind these drilling elements in order to develop a greater understanding of the principles involved in drilling a.
Horizontal directional drilling trenchless information center. Trais bowling green state university college of technology. Horizontal directional drilling hdd was pioneered in the united states for an innovative road boring contractor who successfully completed a 183 m river crossing using a modified rod pushing a. Pdf attitude control system for directional drilling. Directional drilling directional drilling is defined as an art and science involving deflection of a well bore in a specified direction in order to reach a predetermined object below the surface of the earth. A particular glaring example of this has been in the field of directional drilling where a large literature gap has existed for many years. The horizontal directional drilling process explained.