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  • OTM-055: Obtaining detailed terrain mapping for DEM construction

 

 Obtaining detailed terrain mapping for DEM construction

 

Challenge ID

OTM:055

1

Title

Obtaining detailed terrain mapping for DEM construction

2

Theme ID

ON 2.4: Surface Geology Mapping - Terrain evaluation and Geo-morphology characterization

3

Originator of Challenge

Onshore: OTM

4

Challenge Reviewer / initiator

Ramani, Statoil, BP, Shell, Exxon, Tullow, Petronas, Chevron

 

General description

Overview of Challenge

5

What is the nature of the challenge? (What is not adequately addressed at present?)

Having an accurate and reliable way to map terrain would lessen the need to deploy ground staff and allow their time on the ground to be more focussed.  It would also allow us to evaluate multiple sites with consideration to logistical issues.

Digital elevation models (DEMs) are currently constructed by overlapping imagery with e.g. LiDAR , terrain and geological information.  It would be advantageous if we could do this more efficiently (cost/ time).  They can be used to develop a risk assessment map.

6

Thematic information requirements

1. Obtain detailed topographic information, 2. Obtain detailed terrain characterisation,            14. Obtain detailed imagery of the surface,

7

Nature of the challenge - What effect does this challenge have on operations?

Deploying ground staff is costly and carries an associated safety risk to operatives.  The requirement to deploy ground staff will not and should never be completely removed but if we could deploy them with a thorough and accurate understanding of the are

8

What do you currently do to address this challenge?/ How is this challenge conventionally addressed?

Deploy ground staff

9

What kind of solution do you envisage could address this challenge?

High resolution DEM that is affordable would be very valuable

10

What is your view on the capability of technology to meet this need? – are you currently using EO tech? If not, why not?

 

 

Challenge classification

 

11

Lifecycle stage

Pre license

Exp.

Dev.

Prod.

Decom.

Score from impact quantification [1]

3

4

3

1

3

12

Climate classification

NOT CLIMATE SPECIFIC

13

Geographic context/restrictions

Generic onshore (Unspecified)

14

Topographic classification / Offshore classification

Generic onshore (Unspecified)

15

Seasonal variations

Any season

16

Impact Area

Operational cost reduction, environment, strategic decision enabler

17

Technology Urgency

(How quickly does the user need the solution)

Immediately (0-2 years)

 

Information requirements

 

18

Update frequency

Snap shot requirement

19

Data Currently used

 

20

Spatial resolution

 

21

Thematic accuracy

Vertical DEM accuracy is critical - down to a few cm

Horizontal accuracy <1m

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Example formats

 

23

Timeliness

Reference data - timeliness not important

24

Geographic Extent

reservoir footprint

25

Existing standards

 


 


[1] Impact quantification scores: 4 – Critical/ enabling; 3 – Significant/ competitive advantage; 2 – Important but non-essential; 1 – Nice to have; 0 – No impact, need satisfied with existing technology

 

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