Rate of penetration estimation model for directional and horizontal wells ettehadi osgouei, reza m. Sep 25, 2015 surveying is an inseparable part of directional drilling. The shortrange response is associated with the dimensions of the bit, the small scale of the. Sohrab zendehboudi phd, alireza bahadori phd, ceng, in shale oil and gas handbook, 2017. Formulas and calculations for drilling, production and workover norton j. Horizontal directional drilling best practices for. 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. Spe disclaims any and all liability for your use of such content.
The operator should become familiar with the work area. Calculation methods for directional survey petrowiki. Hdd analyser performs the pipeline stress analysis and hdd design calculation in compliance with the international codes and standards. Directional, horizontal, and multilateral drilling petroskills. The emphasis is on the theory behind these drilling elements in order to develop a greater understanding of the principles involved in drilling a. This method is based on the principles of stereographical projection. Drilling numericals rig components, ton miles, circulation, mud pump, drillstring data, bha selection, kick and kill calculations, maasplot, directional well profiles, cementing. Schlumberger offers expert directional drillers and proven technologies to provide the trajectory control needed to drill the well correctly, the highquality hole required to successfully run and cement casing, and the precise well placement to optimize production and maximize recoveryall leading to drilling optimization for optimal efficiency and cost savings. A new method is proposed to calculate the parameters related to directional coring and deflection is drilling. The main objectives in a successful drilling operation is to construct safe and economically efficient wells, but this success depends on hitting the target. Each rig will have a spread of equipment including a field power unit, a mud system drilling fluid. View our horizontal directional drilling accessories and guidance systems below. Horizontal directional drilling calculator all about. To allow accurate determination of well coordinates at a series of measured depths and determine the current location.
Locations the relative locations of the target and relief wells are calculated. Design radius of curvature horizontal directional drilling. Directional drilling is a fairly new concept when putting pipe in the ground. A threedimensional mathematical model of directional drilling. This data includes the productpipe material properties, the drilling fluid properties, and any code or design factors that are applicable. Build up a vertical section is drilled, then, starting at the kick off point, the angle of incidence to the vertical is. Arc length of a pipe needed for a directional drill. The components of a horizontal drilling rig used for pipeline construction are similar to those. Please log in or register to perform horizontal directional drilling analysis. A maxirig directional drill will be of the similar size or likeness as an american augers dd440t, a dd660rs, or a dd1100rs to be used on the usace crossings. Horizontal directional drilling 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 drilling rig, with minimal impact on the surrounding area. As the drilling operation have very high standards of execution, a good drilling operation. Tips for calculating setback in horizontal drilling. Larry wolfson larry wolfson has 34 years experience in planning and supervising well construction, including erd, slimhole and subsea wells.
Directional drilling formulas, free directional drilling formulas software downloads. Formulas and calculations for drilling, production and. Directional, horizontal, and multilateral drilling dhd mr. Parametric study of pullback forces on pipelines installed. The hdd equipment arrives on site aboard multiple trucks. An example of the input data required for calculating estimated pulling loads is. Years of research have resulted in one of the first design codes for horizontal. Formulas and calculation for drilling production and workover 1 free ebooks 1 fulcrum effect 1. This drilling will commence until the drill front is approximately 100 m above the target. The largest bend radius of either the drill rod or product pipe is the number that must be used for planning and completing the bore. 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. Drilling calculator, calculate all your drilling numerical with least effort and most accuracy. The trenchless technique horizontal directional 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. This would therefore help to minimize risk and uncertainty surrounding hitting predetermined target. Directional drilling positioning calculations request pdf. 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 formulas software free download. Horizontal directional drilling best practices for operators pre. Directional drilling commences at the surface as a vertical well. Markets hdd tips for calculating setback in horizontal drilling. A common industry standard for determining the design radius of curvature for bends used in hdd installations. Since the seventies deltares has been involved in the development and execution of trenchless technologies.
The mathematics of directional drilling bit by bit with workings curriculum for excellence. Determine the length of pipe needed to perform a directional drill. Calculation of the pulling force during pulling back, the product. The 2012 naics north american industrial classification system code for horizontal drilling directional boring falls under category 237990 other heavy and civil engineering construction. Comprehensive program for the design analysis of pipelines crossings by horizontal direction drilling methodology. Formulas and calculations for drilling operations g. Pdf windowsbased software for directional drilling. The first step in calculating the estimated pulling loads is to develop the input data that will be used in the calculations. The specifications for the maxirig directional drills are attached in appendix a. Years of research have resulted in one of the first design codes for horizontal directional drilling, as well as a.
Directional and horizontal drilling operations are increasingly conducted in all over the world, especially parallel to the growth of the technological developments in the industry. Horizontal directional drilling 4 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. Tips for calculating setback in horizontal drilling 2015. Wear appropriate personal protective equipment ppe as required by the task being. Pdf the directional difficulty index a new approach to. Ouija board is a method that directional drillers use to calculate inclination and azimuth at the bottom or distance and tool face to drill at required direction. Horizontal directional drilling has been used on a large scale since the eighties. Coverage of the hdd model footage contract guidelines for hdd projects, example specifications, and information on risk reductionis also included. These calculations include kill sheets and the related calculations, prerecorded information, kick analysis, pressure analysis, strippingsnubbing calculations, subsea considerations, workover operations, controlling gas migration, gas lubrication, and annular stripping procedures. Horizontal directional drilling equipment and accessories. Surveying is an inseparable part of directional drilling. Free download ouija board directional drilling excel spreadsheet this is really useful. The mathematics of directional drilling bit by bit 0m sea relief targetbed kick off point end of build first bit. Evren ozbayoglu september 2007, 83 pages directional and horizontal drilling operations are increasingly conducted.
Appendix c hdd construction plan hdd contingency plan. Allowing for the limitation of pressure loss in directional drilling, the design of fluidic jet oscillator is feasible to horizontal directional drilling to reduce friction and drag torque, which. Horizontal directional drilling and boring 02415 4 immediately. Horizontal directional drilling hdd design methodology. Formulas and calculations 6 convert pressure, psi, into mud weight, ppg using meters as the unit of measure mud weight, ppg pressure, psi. This approach provides a flexible way of installing pipes and cables where conventional open cut methods are not permitted, practical, or. Be sure to contact us with any questions or let us help you place your order. Nov 05, 2014 download drilling calculator for free. Calculation equations for directional drilling free download as powerpoint presentation.
Logs must be kept intact referencing all forces exerted on the pipeline during the project. Directional drilling an overview sciencedirect topics. Pdf the mathematics of modelling directional wells. Applied drilling engineering by bourgoyne, millhem, chenevert, and young 1991. Click the blue button in bottom right corner to reach us pipe steel outside diameter. To measure the inclination and azimuth at the bottom of the hole and hence determine where the well is heading. Calculating the pull loads horizontal directional drilling.
Directional drilling the promise and the peril alfred w. 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. Its main topics about oilgas drilling wells operations, design to be a guide for the drilling people. Horizontal directional drilling horizontal directional drilling has been used on a large scale since the eighties. An example of the input data required for calculating estimated pulling loads is provided in example 61 later in this chapter. Content of petrowiki is intended for personal use only and to supplement, not replace, engineering judgment. Apr 16, 2020 the first step in calculating the estimated pulling loads is to develop the input data that will be used in the calculations.
One source reported that the number of units in use increased by more than a hundred. In practice, directional drilling is the practice of drilling nonvertical wells. Surveys are recorded at regular intervals while drilling. A lot of geometry comes into play when determining a proper setback distance in horizontal drilling. Hdd is a surfacelaunched drilling technique using bentonite slurry to support the drilled hole.
Horizontal directional drilling calculator all about pipelines. The contractor shall provide adequate supports along the stringing area to protect the pipe and allow free movement of the pipeline during pullback. Horizontal directional drilling plan february 29, 2012. Drilling the operator should read, understand, and follow the operators manual.
Powered by schlumberger oilfield glossary, a ed work of schlumberger. 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. Carden has taught drilling, horizontal drilling and underbalanced drilling seminars in the united states and internationally for more than 20 years. This programm is aimed at calculation of directional survey data for oil. He has authored numerous technical papers on directional drilling and underbalanced drilling. At this point, there is a hydraulic motor attached between the drill pipe and the drill bit. A comparison was made between actual measured pullback forces and theoretically calculated values for more than 50 hdd projects. There are several known methods of computing directional survey. Steel product pipe usually has a much larger bend radius than the drill rod. This is possible because deviations can easily be detected and the necessary directional. Horizontal directional drilling features many examples and hdd calculations as well as detailed illustrations. This data includes the productpipe material properties, the drillingfluid properties, and any code or design factors that are applicable. The drilling rig is a medium to support and hang the drill pipe and the mechanisms provided on the drilling rig helps to add another drillpipe to the present drill string, provide load on the bit so that we keep moving ahead in depth, helps rotating the drill string so that rotational force at bottom helps to drill the formation.
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