Planning Horizontal Directional Drilling for Pipeline Construction

9.2.3 Documentation / As-builts ........................................................... 9-2
9.2.4 Access .......................................................................................... 9-2
9.2.5 Equipment.................................................................................... 9-3
9.2.6 Environmental Concerns.............................................................. 9-3
9.2.7 Allocation of Risk of Loss ........................................................... 9-3
9.2.8 Dispute Resolution....................................................................... 9-3
9.3 Pre-qualification of Bidders..................................................................... 9-4
9.4 Drawings.................................................................................................. 9-4
9.5 Sharing of Risk ........................................................................................ 9-4
9.6 Responsibilities of Parties........................................................................ 9-4
9.7 Failed Crossings....................................................................................... 9-4
9.8 Dispute Resolution................................................................................... 9-5
9.9 Drilling Execution Plan............................................................................ 9-5
9.10 Environmental Protection Plan ................................................................ 9-5
10 CONSTRUCTION CONSIDERATIONS......................................................... 10-1
10.1 Drilling................................................................................................... 10-1
10.1.1 Types and Sizes of Rigs............................................................. 10-1
10.1.2 Casing ........................................................................................ 10-1
10.1.3 Drag Section............................................................................... 10-1
10.1.4 Steering / Survey of Drill Head ................................................. 10-2
10.1.5 Drilling Fluids............................................................................ 10-2
10.1.6 Drilling Fluid Disposal .............................................................. 10-3
10.1.7 Buoyancy Control ...................................................................... 10-3
10.2 Monitoring ............................................................................................. 10-3
10.2.1 Drilling....................................................................................... 10-3
10.2.2 Environmental............................................................................ 10-4
10.2.3 Indicators of Inadvertent Returns............................................... 10-4
10.3 Failures................................................................................................... 10-5
10.3.1 Types and Causes....................................................................... 10-5
10.3.2 Contingency Plans ..................................................................... 10-6
10.3.3 Selection of Alternatives............................................................ 10-6
10.3.4 Clean-up and Remediation......................................................... 10-7
10.4 Reporting................................................................................................ 10-9
10.4.1 Monitoring Reports.................................................................... 10-9
10.4.2 As-Built Reports ........................................................................ 10-9
11 REFERENCE DOCUMENTS...............................................................................10
E.1 Purpose............................................................................................................... 11-1
E.2 General............................................................................................................... 11-1
E.3 Recommended Inadvertent Response Plan........................................................ 11-1
E.3.1 Inadvertent Release Response in Water................................................. 11-1
E.3.2 Inadvertent Release Response on Land ................................................. 11-2