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Western Geophysical

© 2000 Baker Hughes Incorporated

ALL RIGHTS RESERVED

Turkmenistan 2000

The Hydrocarbon Potential of the

Caspian Sector of Turkmenistan

An Integrated Study

London May 19th 2000

TURKMENISTAN 2000


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Western Geophysical


ALL RIGHTS RESERVED

TURKMENISTAN 2000

Background to Turkmenistan 2000

June 26th 1995The Ministry of Oil and Gas and Mineral Resources -(Minneft) signed a Joint Operations Agreement with

Western Geophysical to provide:

• Seismic Acquisition Services

• Seismic Processing Services

• Geophysical Consulting and Interpretation Services

• Non-exclusive data marketing services


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Western Geophysical


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TURKMENISTAN 2000

1996 Phase1

7474 km

1997 Phase 2

3460 km

1998 Phase1 Infill

5196 km

Non-Exclusive

Surveys

Phase 2Phase 1 Infill

Phase 1

Phase 1


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Western Geophysical


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Figure 4.2

TURKMENISTAN 2000

42°N

41°N

40°N

39°N

38°N

51°E 52°E 53°E 54°E 53°E

37°N

Garashsyzlyk (N)Mobil

Turkm enbashi

Bekdash

Nebitdag

Cheleken

Kumdag

Okarem

Kizyl-Atrek

Behshahr

Gorgan

BLOCK I Petronas

BLOCK II Cheleken

Keymir Keymir

BlockIII

C A S P I A N

S E A

B A L K A N

0 10 20 30 4 0 50 60

kilometres

LICENSES

Licenced areas

Open offshore areas

LEGEND

FIELD TYPE

Oil field

Gasfield

Oil & gas field

Oil pipeline

Gas pipeline

Refinery

Oil tanker

Approximate sizeof a North SeaQuadrant an d

UK Blocks for comparison

31

30

23

29

28

27

26

25

24

15

16

17

18

20

21

22

1

27

3

4

5

6

14

13

12

11

10

9

8

19

Preparation for new License

Initiative

Turkmenistan 2000

The Competent Body on

Hydrocarbon Resources

of Turkmenistan andMinneft

in conjunction with

Western Geophysical with

the services of Exploration

Consultants Limited

(ECL)


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Western Geophysical


ALL RIGHTS RESERVED

TURKMENISTAN 2000

Geological StudyCommissioned by Minneft in

July 1999

Work Jointly Undertaken

between a ‘Working Group’

from Minneft Turkmengeology

TurkmenGeophysical and other

State Concerns and Research

Institutes and Western

Geophysical

Incorporating Services of Exploration Consultants

Limited ( ECL )

Ark Geophysics


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Western Geophysical


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REGIONAL GEOLOGYREGIONAL GEOLOGYREGIONAL GEOLOGYREGIONAL GEOLOGYOVERVIEWOVERVIEWOVERVIEWOVERVIEW

Steve LawrenceSteve Lawrence

Exploration Consultants LtdExploration Consultants Ltd

Turkmenistan 2000


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Western Geophysical


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Overview of Regional Geology

S O U T H C A S P I A N

B A S I N

S

CENTRAL IRANIAN BLOCKS

KARAKUMPLATFORM

(AMU-D AR’ YA BASIN)

ASHGABAT

FOREDEEP

U

MIDDLE

CASPIAN

BASIN

TOAK IR

EROSI ONAL

WI NDOW

S C Y T H I A N

- T U R AN

P L A T F O R M

WEST

TURKMENISTAN

BASIN

M AKHACHKALA

CASPIAN SEA

TURK MENI STAN

UZBEKISTANKAZAKHSTAN

RUSSIA

AZERBAIJAN

I R A N

I R A N

200km


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Western Geophysical


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Regional Geological Setting

S O U T H C A S P I A N

B A S I N

CE NTRAL IRANIAN BLOCKS

S C Y T H I A N

- T UR A N

P L A T F O R M

200km


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Western Geophysical


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Late Miocene Regional Setting

GC SCYTHIAN - TURAN PLATFORM (S-TP)

CENTRALIRAN

BLOCKS

KD

SCB

TL

ELB

BIN

KA


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Western Geophysical


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Late Miocene 10Ma

GC

SCYTHIAN - TURAN PLATFORM (S-TP)

CENTRALIRAN

BLOCKS

ARABIAN PLATE

KD

SCBTL

ELB

LC

BIN

KA


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Western Geophysical


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Late Miocene Regional Setting

GC SCYTHIAN - TURAN PLATFORM (S-TP)

CENTRALIRAN

BLOCKS

KD

SCB

TL

ELB

BIN

KA


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Western Geophysical


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S-TPParatethysTranscaucusus

- ElburzMagmatic A rc

Neotethys

Tectonic Model - Late Cretaceous-Paleogene


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Western Geophysical


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Tectonic Model - Oligocene-Early Miocene

A r m e n ia n -N . W . I r a n

B l o c k s


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Western Geophysical


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Tectonic Model - Late Miocene-Pliocene

Greater Caucusus

SouthCaspianBasin


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Western Geophysical


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Tectono Stratigraphy - South Caspian Basin

CASPIAN SEA

CASPIANPALEOLAKE

PARATETHYS

L

E

L

M

E

L

E

Apsheron

AkchagylianSuite

Upper

Re d

Series

Pontian

Beds

Diatom Suite

Chokrak Fm.

Tarkhan Fm.

Upper MaikopianSeries

Lower MaikopianSeries

Koun Fm.

Sumgait Fm.

Litho-stratigraphy PetroleumGeology

Lower

Re d

Series

S

S

S

S

S

S

SR4

SR3

SR2

SR1

R

R

R

R

R

PHASE 2

EARLY CONTRACTION

‘Pyrrenean’

A r m e n ian -N .W. I r an

B l o c k s

PHASE 3

LATE CONTRACTION

‘Caucasian’

Greater Caucusus

SouthCaspian

Basin

PHASE 1

EXTENSION

S-TPParatethysTranscaucusus

- ElburzMagmatic Arc

Neotethys


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Western Geophysical


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Structural Styles - Southern S-TP

S NKura Basin Greater CaucasusTerek - Caspian

Foredeep

TranscaucasusScythian - Turan Platform

(from Sobornov, 1994)

S N

SouthCaspian

Basin Apsheron

Sill

ParatethysS-TP

S NKopet Dag

Elburz - Binalud

AshkabatForedeep

Karakum Platform

CimmerianSuture

AshkabatFault

(partly based on Lyberis and Manby, 1999)


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Western Geophysical


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Tectono Stratigraphy - Southern S-TP

L

U

L

U

M

L

U

M

P/E

MIONEO.

Note fromToakir erosionalwindowU-min.

Litho-stratigraphy

Litho-stratigraphy

Dagestan

Highlands

Greater Balkan

(Krasnovosk)

?unknown

L

U

L

U

M

L

U

M

P/E

‘Caucasian’

‘Pyrrenean’

Rifting

Rifting

‘CimmerianOrogeny’

Retro-arcExtension

MIONEO.

S

S

S

S

R

R

R

R

R

R

R

R


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Western Geophysical


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Seismic Sequences - South Caspian Basin

S1

S2

S3

S4

S5

S6

L

E

L

M

E

L

E

Apsheron

AkchagylianSuite

Upper

Re d

Series

Pontian Beds

Diatom Suite

Chokrak Fm.

Tarkhan Fm .

Upper M aikopian

Series

Lower MaikopianSeries

Koun Fm.

Sumgait Fm.

Litho-stratigraphy SeismicReflectors

Lower

Re d

Series

PetroleumGeology

S R4

S R3

S R2

S R1


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Western Geophysical


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Geoseismic Profile - 1

0

1

2

3

4

5

6

7

8

9

10

SHALE SWELL ZONESHALE

DIAPIRICZONE

CENTRAL ZONE

S N FRONTALACCRET.

ZONE

DIAPIRICSHALEWALL

INVERSION ZONEUNINVERTEDPLATFORM

0

1

2

3

4

5

6

7

8

9

10


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Western Geophysical


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NE

SHALE DIAPIR ZONE CENTRAL ZONE FRONTAL ACCRETIONARY ZONE

SW

SHALE SWELL ZONEDIAPIRSHALEWALL

0

1

2

3

4

5

6

7

8

9

10

0

1

2

3

4

5

6

7

8

9

10


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Western Geophysical


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CENTRAL ZONEFRONTAL

ACCRETIONARYZONE

DIAPIRICSHALEWALL

INVERSION ZONE UNINVERTED PLATFORMSW

0

1

2

3

4

5

6

7

8

9

10

0

1

2

3

4

5

6

7

8

9

10

NE

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