HYDROFEST 2015

The Hydrographic Society in Scotland

Offshore Survey Overview

HYDROFEST 2015

The Hydrographic Society in Scotland

Presentation Overview

1. Survey team members2. System checks3. Project Mobilisation4. Project familiarisation5. Record Keeping/Data Acquisition6. Communication7. Deliverables

HYDROFEST 2015

The Hydrographic Society in Scotland

1. Survey Team Members

• Party Chief• Overall in charge of all survey operations• Responsible for work scope completion and deliverable creation

• Senior Surveyor• Oversee operations• Support Party Chief

• Online surveyor• Responsible for data acquisition and real-time data QC• Coordinate survey operations during live operations

• Data Processor• Post -processing of acquired data• Generation of project deliverables

• Survey Engineer• Electronics and IT installation maintenance• Support online operations

HYDROFEST 2015

The Hydrographic Society in Scotland

2. System Checks• Mobilisation checklist• Offset Survey• Calibrations• Mobilisation report• Vessel Setup Document

HYDROFEST 2015

The Hydrographic Society in Scotland

2. System Checks

Mobilisation Checklist• Planning and

execution with a checklist

HYDROFEST 2015

The Hydrographic Society in Scotland

2. System Checks

Vessel Offset Survey• Creating a Vessel

Reference Frame• Defining Orientation• Defining Horizontal

Datum• Defining Vertical

Datum• Creating Vessel

Offset Diagram

HYDROFEST 2015

The Hydrographic Society in Scotland

2. System Checks

Calibrations• Define Rotation

Conventions• DGNSS• Gyrocompass• MRU• USBL• ROV Sensors

HYDROFEST 2015

The Hydrographic Society in Scotland

2. System Checks

Mobilisation Report• Scope of Work• Safety Requirements• Equipment and Summary of Activities• Equipment Configuration• Geodetics• Offsets• Calibrations• Appendices

o Calibration Reportso Calibration Certificationo Vessel Configuration Diagramso Vessel/ROV Offset Diagrams

HYDROFEST 2015

The Hydrographic Society in Scotland

2. System Checks

Vessel Confiuration Document• History of the Vessel

o Vessel Offsetso Vessel Surface Positioning Systemso Vessel Heading and Attitude Systemso Vessel Subsea Positioningo ROV Sensor Configurationo Online Survey Configurationo Offline Survey Configurationo Network Setupo General Vessel Informationo Appendices

o Calibration Reportso Offset diagramso Sensor calibration Certficationo Network Diagrams

HYDROFEST 2015

The Hydrographic Society in Scotland

3. Project Mobilisation

• Vessel Inductions• Equipment Delivery• Equipment

Testing/Checking (Mob Checklist)

• Vessel Sensor Interfacing

• Vessel Sensor Calibrations & Verifications

• ROV Sensor Interfacing

• ROV Sensor Calibrations

• Mobilisation Report

HYDROFEST 2015

The Hydrographic Society in Scotland

4. Project Familiarisation

• HIRAs• Kick-off Meetings• Project Procedures

• Ensure understanding of project in hand • Complete project specific checks and

compliance measure• Standard Procedures• Field Layouts• Work packs• Tolerances• Expected Deliverables

• Listings, reports, charts

HYDROFEST 2015

The Hydrographic Society in Scotland

5. Record Keeping and Data Acquisition

• Online Survey Logbook• Competent summary of operations• Can be a crucial post-job document

• Engineering Logbook• Summary of vessel set-up• Log of changes made to hardware

configurations• Daily Project Reports (DPRs)

• Formal summary of daily opera• Folder Structures

• Standard structure employed• Compliance with data management policies

• Data Storage/Mirrors• Target Zero for data loss• Critical aspect of all operations

HYDROFEST 2015

The Hydrographic Society in Scotland

6. Communication

• Intra-team communication:• Shift Handovers• Progress monitoring

• Inter-department communication:• ROV, Dive control, bridge, deck, field engineer

• Onshore communication:• Appraise onshore project surveyor or project

manager of ongoing operations• Feed in to wider reporting mechanisms

• Client communication:• Critical interface• Contractual awareness sometimes required

• Management of Change:• When something changes we need to be aware

and to manage the change• Procedure and QHSE compliance

HYDROFEST 2015

The Hydrographic Society in Scotland

7. Deliverables Generation

• Field Reports• Field Layouts• Listings• Charts

• Ready for QC and finalisation

• Video• Digital Video

Delivery• Final Report

• Hard copy• HTML reporting