Incident Management Teams Course
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Incident Management Teams Course

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Incident Management Teams Course




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Presentation on theme: "Incident Management Teams Course"— Presentation transcript:

Slide1

Incident Management Teams Course

Slide2

Understanding Oil

What is oil?

Session 5: Marine Pollution Response: Introduction

Slide3

Understanding Oil

Oils can be grouped a number of ways:Persistent or non-persistent oilsRefined product or unrefined oilsWaxy or non-waxy oilsViscous or non-viscous oils‘Heavy’, ‘medium’ or ‘light’ (Specific Gravity)

Session 5: Marine Pollution Response: Introduction

Slide4

Classification of Oil on Density(as per IMO, ITOPF, US EPA and US Coastguard)

(1) “Non-persistent” oil is defined as any petroleum based oil which consists of hydrocarbon fractions where: (a) at least 50% of by volume, distils at a temperature of 340oC (645oF) and (b) at least 95% by volume, distils at a temperature of 370oC (700oF) when tested by the ASTM Method D86/78 or any subsequent revision thereof.(2) Indicative. Non persistent oils are defined according to Specific Gravity. (3) Heavier than water oils. These vary in formulation.

Oil

Classification

Oil

Description

Specific Gravity

%BP <340

o

C

%BP >370

o

C

Examples

Group I

Non persistent oil

(1)

<0.8

(API >45)

>50

<5

Motor spirit, Condensates

Group II

Persistent Oils

Light

0.8-0.85

(API 35-45)

Moderate

12-50

(2)

Light crudes, Kerosenes,

Diesel

Group III

Medium

0.85-0.95

(API 17.5-35)

Low

28-50

(2)

Marine diesel, Medium crudes

Group IV

Heavy

0.95-1.0

(API <17.5)

Low

33-92

(2)

Heavy fuel oils

Heavy crudes

Group V

HTW

(3)

>1.0

Low

High

Orimulsion

Slide5

Understanding Oil

Specific Gravity

: (Density) is an indicator of volatility and hence persistence. (rate of evaporative loss)

API

: American Petroleum Institute Gravity Scale

Viscosity

: An oil’s tendency to resist flow at a specified temperature. Also an indicator of amenability to dispersant.

Pour Point

: The temperature below which an oil will not flow. Important if the Pour Point of an oil is close to the ambient air and water temperatures.

Flash Point

: The temperature above which there may be sufficient vapor to ignite if exposed to an ignition source. An important health and safety consideration.

Slide6

Understanding Oil

Flammability

: The tendency of the oil to burn if exposed to an ignition sources. This is a safety consideration.

Asphaltene Content (%)

: An indicator of an oils tendency to form emulsions.

Wax Content (%)

: Indicates potential oil residues and high pour point. This will influence oil spread, evaporative loss and tendency to emulsify.

Solubility

: How much of the oil will dissolve in the water column on a molecular basis.

Slide7

Behaviours of Oil

Viscosity

Pour Point*

Advection (Movement)

Spread

Wind direction, wind speed

currents

Temperature

Slide8

Slide9

Behaviours of Oil

Slide10

Physical Dispersion (Laboratory Tank)

Behaviours of Oil

Slide11

Behaviours of Oil

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Slide15

Hazardous and Noxious Substances (HNS)

Definition of HNS: As per the OPRC-HNS Protocol, a Hazardous and Noxious Substance is defined as any substance other than oil which, if introduced into the marine environment is likely to create hazards to human health, to harm living resources and marine life, to damage amenities or to interfere with other legitimate uses of the sea.

Activity

Slide16

Intelligence

What is the key intelligence we are seeking at the start of an incident?OSTM – Oil Spill Trajectory Model OSRA – Oil Spill Resource AtlasSDS – Safety Data SheetsApps for hazardous materials

Slide17

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Slide19

Incident Management Teams Course

Day 3

Slide20

General Response Objectives

Protection Priorities

Humans safety and health

Habitat and cultural resources

Rare and endangered flora and fauna

Commercial resources such as oyster farms

Amenities such as beaches boat mooring areas

• These priorities are not set in stone apart from human safety and health.

Slide21

General Response Objectives

Wider considerations also impact of response objectives including:

Political

Economic

Social

Technological

Legal

Environmental

Slide22

Stakeholder Engagement and Advisors

Who are our key stakeholders in a marine oil spill response?

How do we engage with these stakeholders?

All hazards – all agency approach to emergency management