Introduction to directional drilling 2339quartz school. Development of a standard specification for horizontal. Pilot hole directional drilling pilot hole directional control is achieved by using a nonrotating drill string with an asymmetrical leading edge. Drilling process control is very important when drilling the pilot bore. Pdf an introduction to petroleum drilling methods researchgate. Cyclic productivity for horizontal directional drilling hdd. Hdd pilot hole operations are not unlike those involved in drilling a directional oil well. A particular glaring example of this has been in the field of directional drilling where a large literature gap has existed for many years. Introduction to directional drilling this post contains material from dhd directional, horizontal, and multilateral drilling and bdtbasic drilling technology. One source reported that the number of units in use increased by more than a hundred. The disadvantage of directional drilling is that the equipment is of high cost 25 26. Pdf pipeline shore approach installation by horizontal.
Specification for horizontal directional drilling check this is the latest version before use. Pipeline design for installation by horizontal directional drilling addresses the design of major pipeline or duct segments to be installed by horizontal directional drilling hdd. Thus, public safety and ensuring the protection of the underground infrastructure are. Get introduction to directional drilling pdf by schlumburger free download right now from our website. Directional wells drilled at inclination angle of 60 advantages of highly deviated wells. 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. Specialized construction for large waterways and sensitive areas. Good mathematic skills are necessary, particularly trigonometry.
Take this free, animated course to learn the fundamentals of drilling. Prior ex posure to directional drilling is recommended. An introduction to directional drilling oil well nature scribd. Horizontal directional drilling hdd is considered as the most applicable and cost effective technology among trenchless technologies known. Pdf introduction to directional and horizontal drilling. This 1 hour long course includes modules focused on an introduction to oil and gas, fundamental drilling equipment, and the mud circulation system. Nastts horizontal directional drilling hdd good practices. 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. Horizontal directional drilling hdd technique for undersea. A well may be produced temporarily to establish the.
Horizontal directional drilling trenchless information center. Construction crews may also reduce noise by using structures on the drill site that are designed to buffer. Definition z the science of directing a well bore along a predetermined trajectory to intersect a designated subsurface target. 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. Wear appropriate personal protective equipment ppe as required by the task being. 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. Sufficient depth can be accomplished to avoid other. Drilling engineers, drilling supervisors, trainee directional drillers personnel with basic drilling engineering skills. 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 operator should become familiar with the work area. The ohio horizontal directional drilling specification committee ohddsc represented various stakeholders from the horizontal directional drilling community and the dedication of their time and expertise is deeply appreciated. Please read our short guide how to send a book to kindle. Drilling equipment creates noise during operations. Method pertaining to directional drilling method the initial drill out is carried out using highpressure water through drill rods. Drilling the operator should read, understand, and follow the operators manual. Schlumberger introduction to directional drilling by. 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 that a horizontal drilling rig is equipped with an inclined ramp as opposed to a vertical mast. Locations the relative locations of the target and relief wells are calculated. Specialized construction for large waterways and sensitive. The multistage operation consists of drilling a pilot hole along a designed path, then enlarging the pilot hole by reaming in stages, and followed by pulling of hdpe pipe into the enlarged hole. 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.
Horizontal directional drilling best practices for. Directional control in this type of drilling is stringent due to the extreme accuracy required to locate and intersect the blowout well. 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. Trenchless information education center horizontal directional drilling. Toro downhole tools toro has taken every precaution as to the accuracy of the content and data presented herein, toro makes no. It is intended to be an aid to the operator and is provided for information and illustration purposes only. Directional drilling the majority of wells drilled today are directional and directional drilling is a fascinating subject area. Hdd is a trenchless excavation method that is accomplished in three phases and uses a specialized horizontal drilling rig with ancillary tools and equipment. 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. Opcs 15 lenape avenue, rockaway, nj 078661019 for the plastics pipe institute.
Guidelines for use of minihorizontal directional drilling for placement of high density polyethylene pipe tr46 2009 prepared by. The asymmetry of the leading edge creates a steering bias while the nonrotating aspect of the drill string allows the steering bias to be held in a specific position while drilling. Prior to beginning work, the contractor must submit to the. Horizontal directional drilling archives trenchless technology. The surface location is scouted to determine the best site that will allow for any natural drift, provide suitable access for drilling rig, service rig, production facilities and can be constructed for a reasonable cost. Pdf introduction to directional and horizontal drilling jim short. Introduction to directional drilling 2239quartz school. Pipeline design for installation by horizontal directional. The mathematics of directional drilling bit by bit with workings curriculum for excellence.
Introduction to directional and horizontal drilling pdf. Every concept visualized through powerful drilling animations, vivid graphics, and detailed explanations. Pipeline shore approach installation by horizontal directional drilling conference paper pdf available june 20 with 3,586 reads how we measure reads. An introductory text on directional and horizontal drilling and related activities. The objective of this publication is to provide contractors, engineers, and utility owners with information that will assist with the completion. The drilling process utilizes drill pipes, drill bits and reamers in. Agree the well objectives, schedule, costs, order equipment, place contracts for the rig and services, prepare the site. Directional data requirements for forms 2, 4, and 5 for directional wells 1 application for permit to drill, form 2 a. This construction method involves the controlled directional drilling of a pilot borehole, back reaminghole, enlargement and pull back of the specified sewer pipe to line and grade as shown on the drawings. Introduction to directional and horizontal drilling j. Therefore, enbridge will, when possible, restrict drilling activity to daylight hours if the equipment is close to occupied buildings or homes. In this section ill discuss about one of the most important term related to directional drilling dog leg severity, abbrivia.
Alvarez well bore deviation with rotary steering systems last generation of dd tools developed in late 90s and 00s 23. The tools and techniques used in the horizontal directional drilling hdd process are an outgrowth of the oil well drilling. Quite often, special logging tools are required in locating the blowout well. Comprehensive coverage of horizontal directional drilling hdd technologies and applications.
Purposes of directional drilling drilling engineering. Hdd can be applied in different soil conditions, for deep laying of different pipeline diameter and long drives. Pdf horizontal directional drilling hdd was pioneered in the united states for an innovative road boring contractor who successfully completed a 183. Larry slavin member of the hdpe municipal advisory board outside plant consulting services, inc. The construction works of this section involve the installation of twin 600mminternal diameter high density polyethylene hdpe of 1.
Drilling crews and the keystone inspection personnel will be responsible for the monitoring and detection of fracouts. View directional drilling research papers on academia. Guidance note horizontal underground directional drilling 6 p a g e regulation 3. Identify descriptions and pictures of directional drilling applications. Directional drilling fundamentals introduction to directional. Electrical safety trailing earth leads shall be provided by ergon energy and shall be bonded to excavation plant. Directional drilling or slant drilling is the practice of drilling nonvertical wells. A bank, whose name is being kept confidential in the interest of bank. Same as drilling directional oil well starts verticalends horizontal.
Introduction to directional drilling this post contains material from dhddirectional, horizontal, and multilateral drilling and bdtbasic drilling technology. Schlumberger introduction to directional drilling by victor. Build up a vertical section is drilled, then, starting at the kick off point, the angle of incidence to the vertical is. 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. At one time, it was assumed all oil wells were essentially vertical or the bottom of the hole was directly under the drilling rig.
Inaccurate pilot bore drilling can cost a contractor dearly, due to the necessity to rapidly eliminate the consequences of an accident. The emphasis is on the theory behind these drilling elements in order to develop a greater understanding of the principles involved in drilling a. A this drilling motor handbook is for informational purposes only. Introduction to directional and horizontal drilling jim short. Introduction to directional drilling pdf by schlumburger free. The hdd equipment arrives on site aboard multiple trucks. This horizontal directional drilling hdd good practices guidelines, fourth edition is presented by the north american society for trenchless technology nastt, a nonprofit educational organization. An introduction to directional drilling free download as pdf file. Drilling of a relief well right to killa blowout well visible. Horizontal directional drilling best practices for operators pre. Horizontal directional drilling pilot bore simulation. Electronic submittal of directional drilling information. 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.
Basic drilling engineering and 1 3 years wellsite experience. In this section we look at the various items of equipment and tool systems which are available to us for directional drilling purposes. Pdf file of the deviated drilling plan the planned directional coordinate data and two 2 wellbore deviation plots, one depicting the plan view and one depicting the side view of the proposed wellbore b. 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. Advantages the major advantage is the speed of installation combined with the minimum environmental and social impact. Long and complicated crossings can be accomplished with a great degree of accuracy. Horizontal directional drilling plan february 29, 2012. Hdd is a surfacelaunched drilling technique using bentonite slurry to support the drilled hole.