Read Horizontal Directional Drilling Pipeline Design and QA/QC using the BoreAidTM Software Program text version

Ali Bayat, PhD, PEng ([email protected]) Dept of Civil and Environmental Engineering University of Alberta

Mark Knight, PhD, PEng University of Waterloo Karl Lawrence, PhD, PEng eTrenchless Group Inc.

HDD Design Process

1. Definition of project requirements and scope 2. Preliminary Designs ­ cost estimates 3. Site Investigation 4. Final Design ­ cost estimate 5. Preparation of tender document and contract specifications 6. Construction tender 7. Award construction contract 8. Project QA/QC

2

What is Planning?

Planning involves identifying and addressing all projects activities required to ensure a successful project

All parties should be involved in HDD planning

3

Why Plan?

Save money and time by: Identification of potential problems and reduce construction risks Early project modification Selection of the right equipment/tool/drill fluids

4

HDD Project Requirements

Bore parameters Product material and size Site ground information Time/schedule constraints Selection of equipment/tools Drilling fluid materials and systems needs Site constraints

5

Project Considerations

Product Pipe Selection Can it withstand installation forces? Will it resist operation and in-service loads?

Improper pipe selection can result in project failure

6

HDD Design Tools can:

Result in better HDD designs More successful HDD projects

Use of HDD for more challenging projects

More demand for HDD pipeline

installations Lower project costs due: Reduced contractor risk Better designs

HDD Design Software Programs

Petris Technology Inc.- DrillPath, DrillMud and DrillEst. Performance Pipe - PLEXCALC II Atlas Bore Planner - Vermeer Manufacturing Ltd. FieldCalc system - Vermeer Manufacturing Ltd. Mdrill - Delft Geosystems

All programs consider only limited aspects of the HDD construction and design process bore path design and/or pipe design

Presentation Objectives

1) Introduce a new HDD design framework

that is incorporated into BoreAidTM software program 2) Demonstrate how BoreAidTM can be used as a design and Quality Assurance and Quality Control (QA/QC) tool for HDD projects

Developed At University of Waterloo in 2006/07

Windows based program developed in C++

Programmed to be similar to Windows programs Winter 2010 released Version 3 BOREAID is now being used in 16 countries by

contractors, designer and consultants

HDD Design Framework

Bore Planner Pipe Design Drill Fluid Calculator Bore Pressure Estimator Equipment /Tooling Selector

Framework consists of a sequential and systematic methodology for the design of a HDD project

BORE PLANNER

Allows the user to determine a suitable pipeline pathway by taking into consideration site constraints: buried utilities drill pipe entrance and exit angles obstacles, and drill pipe geometric constraints

HDD Design Framework

Surface Topography

Topography Assistant

Surface features are input using the click and drag

Soil Data

Soil Data Input

Different soil systems can be used and

typical properties auto populated User has full control to change properties Simple and complex soil stratigraphy can be easily generated

Site Soil Input Using Assistant

subsurface soil/rock site stratigraphy and

ground water

BOREPLANNER

2 and 3 dimensional graphic showing

topography and soil conditions Easy or complex soil conditions can be input

Surface and Subsurface Utilities

Easy add subsurface and underground

utilities and obstacles Can add clearance zone for drill path

Bore Path

Rod by Rod Plan

Once bore path created can automatically create: drill rod co-ordinates for construction Drill rod plans X,Y, Z Output files

As-Built/Design Comparison

Upload As-built (as constructed) profile and compare with design profile

As-Built/Design Comparison

HDD Design Framework

Bore Planner Pipe Design Drill Fluid Calculator Bore Pressure Estimator Equipment /Tooling Selector

Pipe Load/Deflection Calculator

Pipe Operation and

Installation loads are calculated at each drill rod location in accordance with: ASTM F1962 - Polyethylene Pipeline Research Council International (PRCI) for steel pipe

Load/Deflection Calculator

Load/Deflection Calculator

Load/Deflection Calculator

Load/Deflection Calculator

Load/Deflection Calculator

Calculations are performed at each drill rod location

Load/Deflection Calculator

Pull Back Loads

Calculations are performed at each drill rod location

Pipe Pull Back Loads

With click of mouse can investigate impact of:

Rollers Ballast

on pipe pullback loads

Load/Deflection Calculator

Load/Deflection Calculator

With a click of a button you can create design submittal documents: Design input values Design calculations Pipe design checks

HDD Design Framework

Bore Planner Pipe Design Drill Fluid Calculator Bore Pressure Estimator Equipment /Tooling Selector

Drill Planner Calculator

For pilot bore and each ream determine: Total drill time Volume of drill fluid required Number of drill fluid tanks Volume of soil cut Check to see if pump can deliver volume of fluid required for the drill time per drill rod

Drill Planner

Drill Planner

Drill Planner

Drill Planner

HDD Design Framework

Bore Planner Pipe Design Drill Fluid Calculator Bore Pressure Estimator Equipment /Tooling Selector

Bore Pressure Estimator

Provides estimate of maximum bore

pressure that will create inadvertent returns (frac-out) In bore monitoring can confirm good drilling practices are used by the contractor

Bore Pressure Estimator

Bore Pressure Estimator

HDD Design Framework

Bore Planner Pipe Design Drill Fluid Calculator Bore Pressure Estimator Equipment /Tooling Selector

Equipment/Tooling

Equipment/Tooling

Case Study

28in (710mm) HDPE or steel pipe bore entrance 12 degrees and bore exit angles of 20 degrees

Load/Deflection Calculator

HDPE pipe analysis at each drill rod location

(180 points)

Pipe Performance Operational Loads HDPE Ring Deflection HDPE Unconstrained Collapse HDPE Compressive Stress Installation Loads HDPE Ring Deflection HDPE Unconstrained Collapse HDPE Compressive Stress Minimum Factor of Safety DR11 0.3 0.6 2.5 DR11 24.6 0.9 1.3 DR 9 0.6 1.2 3.1 DR 9 44.8 1.8 1.7 DR 7 1.3 3.2 3.9 DR 7 95.3 4.6 2.2

Load/Deflection Calculator

Steel pipe analysis at each drill rod location

(180 points)

Pipe Performance Operational Loads Shear Stress Installation Loads Tensile Stress Bending Stress Hoop Stress Tensile/Bending Stresses Tensile/Bending/Hoop Stresses 2.9E4 kPa 7.5E4 kPa 1.2E3 kPa 4.9E-1 2.1E-1 26.1E4 kPa 2.0E5 kPa 8.8E4 kPa <1.0 <1.0 9.0 2.6 49.3 4.3E4 kPa 13.0E4 kPa 3.1 Max Bore Path Value Allowable Limit F.S

BoreAid Users

"...Just for your knowledge BoreAid has become an intricate part of our information and pre planning we supply to our clients. Since 2007 we have incorporated the BoreAid in almost every project we have undertaken with 100% success rate. We have complete over 100 bores..."

Trenchless consultant from Australia

New Quick and Easy web

HORIZONTAL DIRECTIONAL DRILLING (HDD) PIPE CALCULATIONS PPI.BOREAID.COM

Project Goals

Develop a web tool that: Completes preliminary Horizontal Directional Drilling pipe calculations in accordance with Chapter 12 of 2nd edition PPI Handbook and ASTM F1962

Promote the use of PPI Handbook and

ASTMF1962 design methodologies

Contains hyperlinks to PPI Handbook

Factor of Safety or calculated values

Highlighted failed values

Calculations with rollers and ballast for one DR above and below selected value

Conclusions

A need exists for better HDD planning

BOREAID can assist industry professionals

with planning, design, and construction of HDD projects BOREAID fills an industry gap for a HDD tool that is user friendly, windows-based, and manufacturer and supplier independent

Thank You

Questions

Information

Horizontal Directional Drilling Pipeline Design and QA/QC using the BoreAidTM Software Program

60 pages

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