Planning Horizontal Directional Drilling for Pipeline Construction

Contents
OVERVIEW ........................................................................................................................i
1 INTRODUCTION ............................................................................................... 1-1
1.1 Purpose of Guidelines.............................................................................. 1-1
1.2 Description of HDD................................................................................. 1-2
1.2.1 Pre-Site Planning ......................................................................... 1-2
1.2.2 Drilling the Pilot Hole.................................................................. 1-4
1.2.3 Reaming of the Pilot Hole............................................................ 1-4
1.2.4 Pipe String Pull back.................................................................... 1-4
1.3 Workspace Requirements ........................................................................ 1-5
2 REGULATORY AND INFORMATION REQUIREMENTS............................ 2-1
2.1 Federal Jurisdictions ................................................................................ 2-1
2.1.1 Fisheries Act ................................................................................ 2-1
2.1.2 Navigable Waters Protection Act................................................. 2-2
2.1.3 Other Federal Legislation ............................................................ 2-3
2.2 Provincial and Territorial Jurisdictions.................................................... 2-4
2.3 Other Guidance ........................................................................................ 2-4
3 SELECTION OF HDD AS THE PREFERRED CROSSING METHOD........... 3-1
3.1 Pipeline Route Section............................................................................. 3-1
3.2 Crossing Location Selection .................................................................... 3-1
3.3 Crossing Method Selection...................................................................... 3-1
3.4 Other Selection Issues.............................................................................. 3-2
3.4.1 Access .......................................................................................... 3-2
3.4.2 Drill Entry and Exit Site Selection............................................... 3-3
3.4.3 No Drill Zone............................................................................... 3-3
4
3.4.4 Water Source................................................................................ 3-4
RISK CONSIDERATIONS................................................................................. 4-1
4.1 Regulatory Risk ....................................................................................... 4-1
4.2 Construction Risk..................................................................................... 4-2
4.3 Operations Risk........................................................................................ 4-3
5 ECONOMIC CONSIDERATIONS..................................................................... 5-1
5.1 Potential Economic Advantages of HDD ................................................ 5-1
5.2 Costs of HDD Applications ..................................................................... 5-1
5.3 Direct Costs and Benefits of HDD Applications ..................................... 5-2
5.4 Indirect Costs and Benefits of HDD Applications................................... 5-2
6 GEOTECHNICAL CONSIDERATIONS........................................................... 6-1
6.1 Geotechnical and Hydrogeological Issues............................................... 6-1
6.1.1 Surficial Overburden Deposits..................................................... 6-1