The hdd equipment arrives on site aboard multiple trucks. Good practices guidelines manual to narrow down the list of points of. Tracking and guiding 101 published by john bieberdorf december 6, 2016 view profile the middle d in the acronym hdd stands for directional, and without directional capabilities, horizontal directional drilling hdd could never have become the primary trenchless construction method for installing underground. The pictures below demonstrate a directional boring bit at several different clock faces. Horizontal directional drilling is a process of boring a horizontal hole for the installation of new pipes without the use of conventional trenching. Below are a list and brief description of the horizontal directional drills hdds that will involve usace jurisdictional levees. This reamer is slightly bigger than the diameter of the pipe. What is horizontal directional drilling horizontal directional drilling hdd is a method of installing underground pipelines, cables and service conduit through trenchless methods.
Appendix c hdd construction plan hdd contingency plan for. Larry slavin member of the hdpe municipal advisory board outside plant consulting services, inc. 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. Directional boring, also referred to as horizontal directional drilling hdd, is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surfacelaunched drilling rig. Dec 12, 2014 see how components of the armor drilling system, such as the gauntlet bit, perform during successful completion of pilot bore, while the vermeer fluted rea. Horizontal directional drilling consists of several installation steps. The contractor shall provide adequate supports along the stringing area to protect the pipe and allow free movement of the pipeline during pullback. Specialized construction for large waterways and sensitive. Unlike open trenching, directional boring allows fpl to install underground equipment while minimizing impact to trees and other vegetation on your property. Aug 22, 2016 however, this directional drill plan will outline the general procedures that will be utilized for all of the crossings performed by precision andor its subcontractors that will involve usace jurisdictional levees. Installation of pipelines by horizontal directional drilling hdd. Kruse deltares national institute, unit geoengineering email. Where horizontal directional drilling is planned to be undertaken as part of a project to rsc07 udc civil works specification, a prestart meeting shall be held in conjunction with the prestart meeting requirement in that specification.
Horizontal directional drilling techniques drilling in soft. Directional boringhdd offers significant environmental advantages over traditional cut and cover. We have more than 70 years of experience manufacturing hdd tools for vermeer, ditch witch, and other directional drills. Generally, the reamer is attached to the drill string on the opposite end of the borehole from the drill and pulled back into the pilot hole. Development of a standard specification for horizontal. May 01, 2010 underground utility contractors are familiar with horizontal directional drilling hdd. Drilling fluid recycling system to remove solids from the drilling fluid so that the fluid can be reused. Vacuum truck of sufficient capacity to handle the drilling fluid volume. Analysis of parameters affecting costs of horizontal. Directional boring, also known as horizontal directional drilling hdd, horizontal drilling, slant drilling, or deviated drilling, is a method of trenchless technology.
In fact, many underground utility construction firms use hdd equipment to complement opencut excavation to install utilities. Once the hdd creates a bore of suitable size which may require one or multiple passes by the drilling apparatus the. Section includes requirements for horizontal directional drilling hdd of highdensity polyethylene hdpe pressure sewer pipe. Horizontal directional drilling an overview sciencedirect. The work specified in this section consists of furnishing and installing underground utilities using the horizontal directional drilling method of installation, also commonly referred to as directional boring or gui ded horizontal boring. Horizontal auger boring can be used in a wide range of soil conditions.
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. Our recordsetting drills are supported by an unrivaled fleet of 20 large rigs with up to 1. Directional boring safety missouri common ground alliance. Michels is regarded as the north american leader in horizontal directional drilling hdd, and we are determined to stay on top. Specification for horizontal directional drilling page 2 of 6 specification rsc09 ver 2 ergon energy corporation limited abn 50 087 646 062 6. Under obstacles, including river crossings, and in the asce. For simplicity, lets start this directional bore off with the clock face at 6 oclock.
Hdd pilot hole operations are not unlike those involved in drilling a directional oil well. Get the back reamers, rock tools, bits, blades and other tools you need from a partner you can trust. 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. Horizontal directional drilling tracking and guiding 101. The equipment and procedures are intended to minimize surface damage, restoration requirements, and disruption of vehicular or maritime traffic with little or no interruption of other existing lines or services. Directional drilling safe practices trenchless technology. Appendix c hdd construction plan hdd contingency plan.
Guidelines for utility horizontal directional borings. The project confirmed another important point for drilling in unstable formations when the drilling tools failed to advance at one point, the team was forced to drill in. In the oil and gas industry, directional boring involves laterally drilling various wells through a zone of oil or gasbearing rock at angles from a vertical well hole. Same as drilling directional oil well starts verticalends horizontal. Hdd is a trenchless technology that uses surfacelaunched equipment to drill underground horizontally and install pipes, conduits, and cables. Each of our directional drilling and horizontal auger boring projects primary objectives is to honor the environment in which we operate and restore it upon completion of your project. To help us achieve this in your behalf, before drilling any project we classify it into one of. Development of a standard specification for horizontal directional. They should walk the planned borepath with the tracking equipment to evaluate any potential. Horizontal directional drilling best practices for operators.
Horizontal underground directional drilling, commonly called horizontal directional drilling, directional boring, or hdd, is a steerable trenchless method of installing underground pipe, conduit, or cable in a shallow arc along a prescribed bore path by using a surfacelaunched. Avoiding underground utilities during horizontal directional. This is accomplished in the second stage of the horizontal directional drilling process by prereaming the horizontal boring to successively larger diameters. A method of installing buried piping by controlled, guided within specified limits horizontal drilling. Section 02781 horizontal directional drilling page 2 3. We know the drill when it comes to horizontal directional drilling tools for your hdd drilling. Pdf horizontal directional drilling pilot bore simulation. Lakeland water utilities directional bore standards. Carden has taught drilling, horizontal drilling and underbalanced drilling seminars in the united states and internationally for more than 20 years. Pdf horizontal directional drilling hdd was pioneered in the united states for an innovative road boring contractor who successfully completed a 183.
Horizontal directional drilling hdd is defined as a steerable system for the installation of pipes, conduits, and cables in a shallow arc using a surfaced launched drilling rig. Norseman directional drilling safe work practice copy. Horizontal directional drilling plan february 29, 2012. This work shall include all necessary services, equipment, materials, and labor for the complete and proper. Horizontal directional drilling can be used to install pipes under an obstruction, such as a road plate 26 c, railway or river. Specialized construction for large waterways and sensitive areas.
Osha and the american pipeline contractors association apca alliance, february 2008. Horizontal directional drilling experience in difficult. Directional drilling, also known as horizontal boring or directional boring, begins with the directional drill bit entering the ground at a certain predetermined angle. Directional boring, commonly called horizontal directional drilling or hdd, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore path by using a surface launched drilling rig, with minimal impact on the surrounding area. The hdd pilot bore picture and the data of each drill pipe position and b ending angle are saved in pdf. Horizontal directional drilling hdd company michels. In practice, directional drilling is the practice of drilling nonvertical wells.
Traditionally hdd is applied to large scale crossings such as rivers in which a fluid filled pilot hole is drilled without rotating the drill string, and this is. Guidance system to accurately guide boring operations. Horizontal directional drilling hdd is a construction technique whereby a tunnel is drilled under a waterway or other designated area, and a pipeline or other. Get the horizontal directional drilling tools you need from melfred borzall. All of the above mentioned subsurface utility engineering investigations and preengineering must be verified in the field as part of the field engineering check in the proposed work. The products versatility match the drilling needs to optimize the customers productivity. The hdd process involves drilling a pilot hole in the horizontal direction towards the other end of the planned route. Guidelines for use of minihorizontal directional drilling for placement of high density polyethylene pipe tr46 2009 prepared by. Hdd construction is considered suitable for large river crossings, extreme congestion e. Special conditions for horizontal directional drilling hdd november, 2007 page 1 of 4 1 materials 1. Pdf pipeline design for installation by horizontal directional drilling. The initial controlled drilled horizontal shaft used to guide the enlargement to design size and eventual installation of the pipe.
Jack and bore, also known as auger boring, is one of the most popular methods of trenchless technology. Synthesis of trenchless technologies lindsay ivey burden, ph. The bore is steered to create an initial hole at the required line and grade. Horizontal directional drilling hdd has become one of the fastestgrowing trenchless. It is imperative that the drill locator and the drill rig operator have an understanding of the job prior to commencement of the work. Drill pipe and downhole tools are generally interchangeable and drilling. Salleh and others published the important of horizontal directional drilling standard technical. Michels has successfully completed hdd crossings in all 50 states, canada. When the drill head emerges on the other end, a back reamer is attached to the string and pulled back through the 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. 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.
Horizontal directional drilling for placement of pe pipe or conduit. Horizontal directional drilling hdd is one of the most common methods used for installing piping, conduits or cables underground without digging open trenches. Horizontal directional drilling tools melfred borzall. 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. He worked for grace, shursen, moore and associates gsm. Horizontal auger boring can be used to install any type of pipe or cable. Addresses issues associated with the operation of horizontal directional drilling equipment such as preand postoperation procedures and safe operation considerations. We have a broad range of horizontal directional drilling hdd equipment that are specifically designed and matched for any type of drilling condition. Horizontal directional drilling techniques drilling in. Hdd uses an inclined ramp as opposed to vertical mast. Astm f1962 11 standard guide for use of maxihorizontal. First, a pilot bore is made with a suitablesized drilling rig. One source reported that the number of units in use increased by more than a hundred.
Horizontal directional drilling horizontal directional drilling is defined as a steerable system for the installation of pipes, conduits and cables using a surface launched drilling rig. He has authored numerous technical papers on directional drilling and underbalanced drilling. Actively engaged in horizontal directional drilling for minimum of 3 years. The trenchless technique horizontal directional drilling. The trenchless technique horizontal directional drilling soil related risks and risk mitigation dr. Directional drilling an overview sciencedirect topics. In some situations, hdd offers many advantages, including efficiency, speed, costsavings and less disruption to the environment. Pdf the important of horizontal directional drilling standard. Chapter 12 horizontal directional drilling plastics pipe institute. Communication is a critical ingredient of any successful horizontal directional drilling project. Minihorizontal directional drilling minhdd is typically. Horizontal directional drilling is accomplished using a specialized horizontal drilling rig with ancillary tools and equipment. It has been used in the united states for more than 50 years iseley and.