overview of blocks on offer - directorate general of...

Overview of Blocks on Offer OALP Bid Round I

January 2018 OALP blocks-on-offer (Bid Round I) 2

Outline

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Overview of Indian sedimentary basins

OALP blocks-on-offer (Bid Round I)

Hydrocarbon Resource Reassessment

Relevance of Resource Reassessment to OALP Bid Round I

Sum-up

Overview of Indian sedimentary basins


Indian sedimentary basins • There are 26 sedimentary basins in

India, covering a total area of 3.36

million sq km

• Basins include Onland, Shallow-water

(between 0 to 400m isobath) and

Deepwater areas (between 400m

isobath and EEZ

• Onland area: 1.63 million sq km

• Shallow water: 0.41 million sq km

• Deep water: 1.32 million sq km

Category I

Category II

Category III


I. Basins where hydrocarbon presence is established and commercially producing (7 basins) • (1) Assam Shelf, (2) Assam-Arakan Fold Belt, (3) Cambay (4) Cauvery, (5)

Krishna-Godavari, (6) Mumbai Offshore and (7) Rajasthan Basin

II. Basins where hydrocarbon is established but yet to produce commercially (5 basins) • (1) Andaman, (2) Kutch, (3) Mahanadi, (4) Saurashtra and (5) Vindhyan

III. Basin where hydrocarbon is yet to be established (14 basins) • (1) Himalyan Foreland, (2) Ganga-Punjab, (3) Kerala-Konkan (4) Bengal-Purnea,

(5) Karewa, (6) Spiti-Zanskar, (7) Satpura-South Rewa-Damodar, (8) Narmada, (9) Deccan Syneclise, (10) Bhima-Kaladgi, (11) Cuddapah, (12) Pranhita-Godavari, (13) Bastar, (14) Chattisgarh

Basin classification

OALP blocks-on-offer (Bid Round I)


Portfolio of OALP blocks

Assam-Arakan, 6

Assam Shelf, 13

Cambay, 11

Cauvery, 3

Kutch, 2

Saurashtra, 2

Himalayan Foreland, 1

Krishna-Godavari, 5

Mumbai

Offshore, 2

Rajasthan-Barmer, 6

Rajasthan-Bikaner, 2

Rajasthan-Jaisalmer, 1

Ganga-Punjab, 1 • Total 55 blocks

• Distributed into 11

sedimentary basins

• Assam Shelf & Assam

Arakan, Cambay and

Rajasthan have most

number of blocks

• 4 blocks from category II

basins

• 2 blocks are from Category III

basins


Basinal extent of blocks-on-offer

Assam-Arakan 4%

Assam Shelf 16%

Cambay 13%

Cauvery 9%

Kutch 9%

Ganga-Punjab 3%

Saurashtra 6%

Himalayan Foreland

1%

Krishna-Godavari

16%

Mumbai Offshore

6%

Rajasthan-Barmer

10%

Rajasthan-Bikaner

6%

Rajasthan-Jaisalmer

1% • Total area 59,282 sq km

• Rajasthan, Assam Shelf,

Krishna-Godavari and

Cambay have

maximum acreage

• 1 block in deepwater, 8

in shallow and rest

onland


Resource potential across basins

4,852

7,578

4,133

1,943

786

1,672

1,455

1,246

827

803

443

128

44

0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000

Mumbai Offshore

Krishna-Godavari

Assam Shelf

Rajasthan-Barmer

Cambay

Cauvery

Assam-Arakan

Saurashtra

Kutch

Rajasthan-Jaisalmer

Rajasthan-Bikaner

Ganga-Punjab

Himalayan Foreland

Established

Yet-to-Find

(MMTOE)

Hydrocarbon Resource Reassessment


Overview

• A comprehensive study including G&G, petroleum system modeling and

resource assessment were carried out for all 26 basins

• A total of 177 Plays identified in 26 basins

• 87 in Tertiary,

• 53 in Mesozoic (identified in 14 basins),

• 37 Pre-Mesozoic

• New plays were identified and included viz. basement fractures and

Mesozoic reservoirs


Reassessment results • Hydrocarbon resources were assessed for 26 sedimentary basins across

onland, shallow water and deep waters:

• Total inplace: 41,872 MMTOE

• Discovered: 12,076 MMTOE

• Undiscovered: 29,796 MMTOE

• Last assessment done in 1995-96 for 15 sedimentary basins :

• Total inplace: 28,085 MMTOE

• Increase of total hydrocarbon estimate: 49.1%

Relevance of Resource Re-assessment to OALP Bid

Round I


Assam Shelf

AA-ONHP-2017/1

AA-ONHP-2017/4

AA-ONHP-2017/5

AA-ONHP-2017/8

AA-ONHP-2017/9

AA-ONHP-2017/10

AA-ONHP-2017/11

AA-ONHP-2017/12

AA-ONHP-2017/13

AA-ONHP-2017/15

AA-ONHP-2017/16

AA-ONHP-2017/17

AA-ONHP-2017/18

102

578

399

534

607

1,517

2,123

142

0 1,000 2,000 3,000

Basement

Paleocene - Tura

Early Eocene - Sylhet

Late Eocene - Kopili

Early Oligocene - BMS

Late Oligocene - BCS

Miocene - Tipam

Pliocene - Girujan

Million Tonnes Oil-Equivalent

Play-wise Resources

Prognosticated Resources (In-place MMTOE)

Discovered Undiscovered Total

1,868 4,133 6,001


Assam-Arakan Fold-belt AA-ONHP-2017/2

AA-ONHP-2017/3

AA-ONHP-2017/6

AA-ONHP-2017/14

AA-ONHP2017/19

AA-ONHP-2017/20



178 1,455 1,633

10

1085

140

152

23

101

122

0 200 400 600 800 1000 1200

Eocene

Oligocene - Renji

Early Miocene - L. Bhuban

Mid Miocene 1 - Mid Bhuban

Mid Miocene 2 - U. Bhuban

Late Miocene - Bokabil

Pliocene - Tipam


Play-wise Resource


Rajasthan sub-basin - Barmer

RJ-ONHP-2017/1

RJ-ONHP-2017/2

RJ-ONHP-2017/3

RJ-ONHP-2017/4

RJ-ONHP-2017/5

RJ-ONHP-2017/6

8

101

45

672

1,674

106

166

0 500 1000 1500 2000

Malani Basement

Cretaceous Ghaggar Hakra

Rageshwari Volcanics

Paleocene Fatehgarh

Paleocene Barmer

Eocene Dharvi Dungar

Eocene Thumbli


Play-wise Resource



829 1,943 2,772


Rajasthan sub-basin - Jaisalmer RJ-ONHP-2017/7

117

53

108

136

285

178

11

7

1

0 50 100 150 200 250 300

Permo-Triassic - Bhuana

Early Jurassic - Lathi

Mid Jurassic - Jaisalmer

Late Jurassic - B&B

Early Cretaceous - Pariwar

Mid Cretaceous - Goru

Paleocene - Sanu

Eocene - Bandah

Eocene - Khuiala


Play-wise Resource



94 803 897


Rajasthan sub-basin - Bikaner RJ-ONHP-2017/8

RJ-ONHP-2017/9

15

299

143

0 100 200 300 400

Infra Cambrian - UpperCarbonate

Infra Cambrian -Bilara

Infra Cambrian -Upper Jodhpur

Million Cubic Meter Oil-Equivalent

Play-wise Resource



15 443 458


Cambay Basin CB-ONHP-2017/1

CB-ONHP-2017/2

CB-ONHP-2017/3

CB-ONHP-2017/4

CB-ONHP-2017/5

CB-ONHP-2017/6

CB-ONHP-2017/7

CB-ONHP-2017/9

CB-ONHP-2017/10

CB-ONHP-2017/11

CB-ONHP-2017/12

0

388

512

321

1,273

66

25

0 500 1,000 1,500

Cretaceous - Deccan Trap

Early Paleocene

Late Paleocene

Early Eocene

Middle Eocene

Late Eocene

Oligo-Miocene


Play-wise Resource



1,800 786 2,586


Krishna-Godavari Basin KG-OSHP-2017/1

KG-ONHP-2017/1

KG-ONHP-2017/2

KG-DWHP-2017/1

KG-ONHP-2017/3

0 12 75

1,482 807

571 316

3,293 1,201

1,798

0 1,000 2,000 3,000 4,000

BasementPermian

Triassic PlayLate Jurassic Play

Early Cretaceous PlayLate Cretaceous Play

Paleocene PlayEocene Play

Miocene PlayPliocene Play


Play-wise Resource



1,977 7,578 9,555


Cauvery

CY-ONHP-2017/1

CY-OSHP-2017/1

CY-OSHP-2017/2

21 0

1893 28 4 4 13 0 0

0 500 1000 1500 2000

BasementJurassic

Early CretaceousTuronian-Cenomanian

SantonianMaastrichian-Campanian

Paleocene-EoceneOligocene

Miocene


Play-wise Resource



292 1,672 1,964


Kutch GK-OSHP-2017/1

GK-ONHP-2017/1

11 14

5 6

0 5 10 15 20

Mid Jurassic Lower Play

Mid Jurassic Upper Play

Late Jurassic Play

Early Cretaceous Play


Play-wise Resource (onland) : 36 MMTOE

267 33

6 273

148 0

72 48

0 15

0 50 100 150 200 250 300



Late Jurassic Play


Late Cretaceous Carbonate/ Clastic Play

Weathered Basalt

Paleocene Clastic/ Carbonate Play

Early Eocene Clastic/ Carbonate Play

Late Oligocene Clastic

Mid Miocene Clastic


Play-wise Resource (Offshore) : 862 MMTOE


Discov-ered

Undis-covered

Total

71 827 898


Saurashtra


Discovered Undis-covered

Total

79 1,246 1,325

404 64

11 229

59 0

73 329

125

0 100 200 300 400 500



Late Jurassic Play


Late Cretaceous Carbonate/ Clastic Play

Weathered Basalt Play

Paleocene Clastic/ Carbonate Play

Early Eocene Clastic/ Carbonate Play

Mid Miocene Clastic Play


Play-wise Resource (Offshore): 1,294 MMTOE

9 5

8 9

0 2 4 6 8 10



Late Jurassic Play



Play-wise Resource (Onland): 31 MMTOE

GS-OSHP-2017/1

GS-OSHP-2017/2


Mumbai Offshore MB-OSHP-2017/1

MB-OSHP-2017/2

188

1675

2220

370

2293

2232

402

266

0 500 1000 1500 2000 2500

Basement-Basal Clastics

Paleocene-Early Eocene

Mid-Late Eocene

Early Oligocene

Late Oligocene

Early Miocene

Mid Miocene-Late Miocene Biogenic

Pliocene-Pleistocene-Recent Biogenic


Play-wise Resource



4,794 4,852 9,646


Ganga-Punjab

127

1

0 50 100 150

Neo-Proterozoic

Mid. Miocene


Play-wise Resource Prognosticated Resources (In-place MMTOE)


0 128 128

GV-ONHP-2017/1


Himalayan Foreland

14

18

9

4

0 2 4 6 8 10 12 14 16 18 20

Neo-Proterozoic-E. Paleozoic

Late Paleocene-Eocene

Oligocene-E. Miocene

Mid. Miocene-Pleistocene


Play-wise Inplace

HF-ONHP-2017/1



0 44 44

Sum-up


Empowered than ever before

• The blocks-on-offer were picked up by independent assessment of EoI

• Continuous access to NDR for more/missed-out data • Basinal information are now enriched with the latest results of

reassessed hydrocarbon studies • Specific information on hydrocarbon plays are now available

• NDR is setting up the data room • All the E&P data of 55 blocks will be available on two work stations • Industry-standard interpretation software with full G&G

functionality for interpretation will be available in data room itself • A team of four persons can visit data room • Bidders can book data room in advance online and visit the same

on chargeable basis

DGH and MoP&NG encourage all bidders to take

advantage of the rich data sets and freedom of

exploration under HELP

Happy bidding !!

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