Planning Horizontal Directional Drilling for Pipeline Construction

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Further details on these other regulatory conditions are summarized in Watercourse Crossings (Canadian Pipeline Watercourse Crossing Committee (CPWCC) 1999). 2.2 Provincial and Territorial Jurisdictions Each provincial and territorial jurisdiction has various legislation, regulations, codes of practice, policies and guidelines affecting pipeline watercourse crossings. Most provinces and territories require a permit, license and/or other authorization to use/affect surface water and/or make alterations to streambeds and banks. The review of applications to alter streambeds and banks generally involves the appropriate provincial fisheries management agencies and may include DFO depending on the agreement the province or territory has with DFO. The issuance of a permit, license or approval generally does not exempt the applicant from the provisions of any other applicable provincial or federal legislation, or any other processes of law including local or municipal by-laws. The bed and banks of a watercourse are, in most instances, considered public lands in all provinces and territories in Canada. Proponents must apply to the appropriate provincial or territorial agency for approval to cross these lands. An overview of the regulatory requirements for each province and territory is beyond the scope of this document, although Appendix B outlines the permits potentially required in each jurisdiction in Canada. 2.3 Other Guidance With the emergence of HDD as a common construction technique, several guidance documents have been produced which may by useful in planning an HDD. These include but are not limited to: • Directional Crossing Contractors Association. Guidelines for a Successful Directional Crossing Bid Package. 1995. • Watercourse Crossings, Second Edition. Canadian Pipeline Water Crossing Committee. November, 1999. • Horizontal Directional Drilling Best Management Practices Manual, Topical Report. Gas Research Institute. May, 2002. • Horizontal Directional Drilling Practices Guidelines. HDD Consortium. 2004 • Alberta Energy and Utilities Board (EUB) Guide 50; Drilling Waste Management, Interim Directive ID 99-05 September 2004 Planning Horizontal Directional Drilling for Pipeline Construction Page 2-4
3 SELECTION OF HDD AS THE PREFERRED CROSSING METHOD The decision to install an HDD crossing at a specific location is the result of a process that addresses the following: • overall pipeline route selection; • crossing location selection; • crossing method selection; • other selection criteria such as: − availability of access, − need for and suitability of vehicle crossings, − siting of entry and exit points, − dimensions of the No Drill Zone, and − availability of a water source. 3.1 Pipeline Route Section The selection of a preferred water crossing location based on an overland pipeline routing assessment should also consider the method of crossing, alignment, and access for the HDD construction. The pipeline routing should allow for layout areas, entry/exit pads, access routes, and minimal points of inflection in the design drill path and the pipe string layout area. 3.2 Crossing Location Selection The selection of the crossing should be undertaken in conjunction with the route selection to allow the following: • flexibility in using various crossing methods, especially if the HDD fails and an alternative crossing technique is required; • flexibility to use various accesses or vehicle crossing methods; and • flexibility in refining the exact crossing location in the event that constraints prevent certain alignments. 3.3 Crossing Method Selection In selecting a pipeline watercourse crossing method, many factors must be taken into consideration. These include, among others: • pipeline diameter; • project schedule (i.e., desired schedule for the pipeline to be operational); • watercourse crossing width, depth and flow; • environmental sensitivity and associated constraints; • geotechnical concerns; • substrate composition; • hydrological data; • costs of the various alternatives; • navigation; September 2004 Planning Horizontal Directional Drilling for Pipeline Construction Page 3-1
Page 1 and 2: GUIDELINE Planning Horizontal Direc
Page 3 and 4: OVERVIEW Horizontal Directionally D
Page 5 and 6: 6.1.2 Clays and Shales ............
Page 7 and 8: E.4 Drill Continuance Plan.........
Page 9 and 10: 1 INTRODUCTION Horizontal direction
Page 11 and 12: Figure 1 Watercourse Crossing - Hor
Page 13 and 14: An internal inspection of the pipe
Page 15 and 16: 2 REGULATORY AND INFORMATION REQUIR
Page 17: • the bed, if disturbed, must be
Page 21 and 22: Sediment and erosion control protec
Page 23 and 24: 4 RISK CONSIDERATIONS As with all c
Page 25 and 26: Potential HDD Difficulty Constructi
Page 27 and 28: 5.3 Direct Costs and Benefits of HD
Page 29 and 30: during directional drilling. Conver
Page 31 and 32: to be provided to prospective HDD c
Page 33 and 34: complement to, bore hole investigat
Page 35 and 36: exit area for pipe stringing, weldi
Page 37 and 38: • interruption of fish movements
Page 39 and 40: 8 ENGINEERING DESIGN CONSIDERATIONS
Page 41 and 42: • landowner consultation during t
Page 43 and 44: Conventional two-layer extruded pol
Page 45 and 46: 9 CONTRACTUAL CONSIDERATIONS 9.1 Ty
Page 47 and 48: 9.2.5 Equipment The bid documents s
Page 49 and 50: • inability to prevent excessive
Page 51 and 52: 10 CONSTRUCTION CONSIDERATIONS 10.1
Page 53 and 54: • plugging and sealing capabiliti
Page 55 and 56: the drill path should be aligned to
Page 57 and 58: 10.3.4 Clean-up and Remediation An
Page 59 and 60: Equipment Use Frac tanks • for ab
Page 61 and 62: Directional Crossing Contractors As
Page 63 and 64: APPENDICES September 2004 Planning
Page 65 and 66: Appendix A - Glossary annular press
Page 67 and 68: adius of curvature the bend radius
Page 69 and 70:
Appendix B - Primary Regulatory and
Page 71 and 72:
Jurisdiction Agency Purpose Northwe
Page 73 and 74:
Appendix C Example Drilling Executi
Page 75 and 76:
d) disposal plan composed of: i) an
Page 77 and 78:
Appendix D - HDD Related Conversion
Page 79 and 80:
Appendix E - Example (Alberta) - Pi
Page 81 and 82:
4. The drilling mud must be cleaned
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Planning Horizontal Directional Drilling for Pipeline Construction

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