mmf oct 2017 - ths.org.uk · mmf –oct 2017 established to offer survey solutions to oil and gas,...

Using autonomous underwater gliders for geochemical surveys

Keith Wallace – Chief Commerical Officer

MMF – Oct 2017

▪ Established to offer survey solutions to oil and gas, engineering, environmental and mining sectors

▪ World’s largest commercial owner and operator of Teledyne Webb Research Slocum Gliders

▪ Exclusive service agreement with Teledyne Webb Research, as 3rd party service provider for the Australia and Southeast Asian region

▪ Experience and technical capability to operate other autonomous platforms such as Liquid Robotics Wave Glider and Kongsberg Seaglider

▪ Global 24/7 operations and piloting capability

▪ Conventional metocean survey capability, and operate a large inventory of metocean equipment globally

Blue Ocean Monitoring is a world leader in providing real-time ocean data solutions.

INTRODUCTION

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UK – Aberdeen• Partner Office

UK – Belfast• Regional Office

Singapore• Regional Office• Partner Office

Australia - Perth• Head Office• Logistics Centre• Glider Service Centre• Piloting Centre

South Africa – Cape Town• Partner Office

USA - Houma• Regional Office• Logistics Centre• Piloting Centre

UK – Southampton• Regional Office• Logistics Centre• Piloting Centre Japan – Tokyo

• Partner Office

Nigeria– Lagos• Partner Office

OFFICE LOCATIONS

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Autonomous technology is fast proving itself as an attractive alternative to vessel-based or fixed-station monitoring.

Wave Glider

Slocum Glider

OCEAN GLIDER ADVANTAGES

Key benefits include:

▪ Economic

▪ Reduce health and safety risk

▪ Minimal vessel requirement

▪ Rapid mobilisation

▪ Real-time data transmission

▪ 2-way satellite communications and control

▪ Long-term measurement

▪ Weather resilience

▪ Low environmental impact

▪ Flexible applications (customisable)

”Glider technology is unique in that it collects data throughout the water column at low cost and at no risk to human life.”

NOAA (IOOS) in reference to Deepwater Horizon Oil Spill Response, 2016 (the first U.S. oil spill response to apply this technology).

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Slocum gliders use small changes in buoyancy to move through the water column, this is converted to horizontal motion by wings, resulting in a “saw-tooth” dive profile.

SLOCUM GLIDER OPERATION

Once on the surface the glider data is transmitted via satellite (RF options to rig/vessel) to our control and data processing centre, from which our clients can remotely access the data.

With 2-way communications, we can interact with the glider and modify the survey as required. www.blueoceanmonitoring.com 5

Near real time data allows for adaptive survey management.

CLIENT DATA PORTAL

www.blueoceanmonitoring.com 6

Slocum gliders can be launched and recovered with minimal logistical requirements.

SLOCUM GLIDER LAUNCH & RECOVERY

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DUEDILIGENCE

Hydrocarbon Detection (Seep)

Environmental Surveys

(Baseline)

Metocean Surveys

(Baseline)

PRE QUALIFICATION



(Baseline)

Metocean Surveys

(Baseline)

EXPLORATION



(Baseline)

Metocean Surveys

(Baseline)


Marine Mammal Observation

(MMO)

Anthropogenic Noise (Seismic)

SITE SURVEYS

Metocean Surveys (EIA)

Environmental Surveys (EIA)

Internal Wave (Soliton)

Monitoring


(MMO)

EXPLORATION DRILLING

Metocean Surveys

(Operational)


(Compliance)

Hydrocarbon Detection (Spill)


Monitoring


(MMO)

Anthropogenic Noise

APPRASIAL DRILLING

Metocean Surveys

(Operational)


(Compliance)



Monitoring


(MMO)

Anthropogenic Noise

DEVELOPMENT

Metocean Surveys

(Operational)


(Compliance)

Hydrocarbon Detection ( Leak,

Spill)


Monitoring

Dredge Plume Monitoring


(MMO)

Anthropogenic Noise

PRODUCTION

Metocean Surveys

(Operational)


(Compliance)

Hydrocarbon Detection (leak,

Spill)


Monitoring

Infrastructure Monitoring

(Leak)


(MMO)

Anthropogenic and Mechanical

Noise

DECOMMISSION

Metocean Surveys

(Operational)


(Compliance)



Monitoring


(MMO)

Anthropogenic Noise

LICENSE AWARD

OIL FIELD APPLICATIONS

Using autonomous underwater gliders for geochemical surveys

UNDERWATER GLIDERS

Advantages▪ Very cost effective▪ High quality data:

▪ TDLAS - high sensitivity, resolution and speed of measurement

▪ Biogenic / thermogenic discrimination with fluorometer

▪ Good endurance▪ Significantly reduced HSE implications

Disadvantages▪ No hydrocarbon fingerprinting (presence / absence result) ▪ Swath of survey is limited▪ Depth limited to 1,000m (2,500m+ glider will be arriving

soon)


CASE STUDY 1 – PNG DAVARIA SURVEY

▪ Multi-client speculative data shoot with survey partners

▪ Glider was equipped with 2 fluorometers (Wetlabs SeaOWL and Turner C3)

▪ Encouraging results but more work needed to be done on instrumentation, piloting and data visualisations


PNG DAVARIA SURVEY


Glider anomalies plotted on MBESBlue Ocean Monitoring, Gardline Marine Sciences, Searcher Seismic

CASE STUDY 2 - YAMPI SHELF

• A world first - the integration of the state of the art laser methane sensor on an ocean glider

• Prove that glider is capable of detecting methane and crude oil from natural seeps by comparing glider data with scientifically rigorous historical data collected near the Cornea oil and gas field, Browse Basin

• Demonstrate real time communication systems and adaptive management of the glider


Compare glider data against the ‘gold standard’.

YAMPI SHELF

Geoscience Australia – Rollet et al, 2006. www.blueoceanmonitoring.com 13

Geoscience Australia – Rollet et al, 2006. www.blueoceanmonitoring.com 14

YAMPI SHELF

METHODOLOGY

In water survey▪ Ascertain ‘background’ methane and crude oil

measurements

▪ Run a series of parallel transects “mowing the lawn” to intersect the plume in the water column

▪ Use the near real time data to inform the survey plan (locate the sea bed source)

Map of glider transects (plan view)


Near real time data allows adaptive management of the glider to investigate anomalies in greater detail.

HIGHLIGHTS OF DATA

• Excellent sensitivity. High concentrations recorded (160 times background) which correlates well with Geoscience Australia data

• Thermogenic discrimination.Maximum fluorescence measurements indicate good spatial relationship with high methane concentrations

• Currents govern diffusion. High methane concentrations have been detected 8km apart

Methane concentration against time

REGIONAL SCALE

Methane anomalies against bathymetry (regional scale)

- 40 - 80ppm - 80 - 120ppm- 120ppm+


HIGHLIGHTS OF DATA

Peak methane and fluorescence measurements in space

METHANE AND FLUORESCENCE

Peak methane and fluorescence measurements in space www.blueoceanmonitoring.com 19

APPLICATION FOR EXPLORATION

▪ Remote sensing first. In frontier basins SAR will provide an early lead

▪ Glider ground truthing second. Explore smarter, focus surveys

▪ Detailed investigations to follow ▪ Geophysical surveys▪ Core sampling▪ 2D/3D Seismic

Explore smarter.


Geoscience Australia – Rollet et al, 2006.

CURRENT & FUTURE DEVELOPMENTS

▪ Acoustic positioning

▪ Enhanced piloting software

▪ Hyperspectral fluorometer

▪ Mass spectrometer▪ SRI ▪ WHOI

▪ MicroAUVs▪ Side scan sonar (pipeline inspection)▪ Hydrocarbon sensors for leak detection▪ Cathodic protection for corrosion studies


Our developments are focused on capturing high quality data with the most cost effective autonomous platforms.

CONCLUSIONS

▪ Gliders provide very cost effective data collection with great spatial coverage and reduced HSE risks

▪ Blue Ocean Monitoring is pioneering the integration of state of the art sensors on long endurance platforms for oil and gas applications

▪ There are numerous applications across the oil and gas lifecycle for AUVs with high quality hydrocarbon sensors

▪ Blue Ocean Monitoring is undertaking a number of research and development programs in this area and welcome industry partnership

Peak methane measurements

- 40 - 80ppm - 80 - 120ppm- 120ppm+


mmf oct 2017 - ths.org.uk · mmf –oct 2017 established to offer survey solutions to oil and gas,...

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