FROZEN HEAT | Volume 2

Resource pyramid for gas hydrates

Arctic sands r ti

3 Tcms

“Conventionals” l ” “ ti

ri

Approximate date of first significant commerciality r i t t f r t i i t r i lit

Marine sands

30 Tcms

1860

300 Tcms

Fractured muds r t r m

Early Unconventionals (tight gas; shallow shales) l (ti t ; ll l ) rl ti

1950 1950

30 Tcms

??? Tcm cm

r

Seafloor mounds

r i

ti

l (

,

l )

1990

Emerging Unconventionals (CBM, deep shales)

??? Tcm

300 Tcms

r i

t

r l

r

Approximate Recoverable Resources In-place Volumes: Recoverability To Be Determined I - l l : r ilit t r i

Undeformed muds f r

Increasing in-place resource volumes Decreasing resource quality and concentration Decreasing resource recoverability; increased Dependance on technology I r i i - l r r l r i r r lit tr ti r i r r r r ilit ; i r t l

2030

3 000 Tcms 3 000 Tcms

In-place Volumes: Recoverability To Be Determined I - l l m : r ilit t r i

Methane Hydrates Metha r t

3 000 Tcms

Increasing in-place resource volumes Decreasing resource quality and concentration Decreasing resource recoverability Increasing dependance on technology I r i i - l r r l r i r r lit tr ti r i r r r r ilit I r i t l

Gas Hydrate In-place Resources: Favorability for production correlates closely with the nature of the host sediment r t I - l r : r ilit f r r ti rr l t l l it t t r f t t i t

Geopressured Brines and others r ri and others r

3 000 Tcms

Source: redrawn from Boswell and Collett, 2006 S rce: re ra fr s ell a llett, 2006

A GLOBAL OUTLOOK ON METHANE GAS HYDRATES 31