krishna godavari basin nelp vii

KRISHNA-GODAVARI BASIN

1. BASIN AREA ( ONLAND ) : 28,000 Sq. Km.

(OFFSHORE) : 145,000 Sq. Km.

1.1 BASIN LOCATION MAP : Refer Sedimentary Basin Map of India in Notice Inviting Offers (NIO)

2. EXISTING DATA BASE

2.1 SEISMIC DATA

2D (LKM) 3D (Sq. Km.) Data acquired by

Onland Offshore Onland Offshore

ONGC 34481 48301 3051 9808

Pvt./JV 715 14704 - 17267

DGH - 11748 - -

Total 35196 74753 3051 27075

2.2 OTHER SURVEYS : Gravity Magnetic Surveys

along with seismic surveys

: Satellite Gravity Survey

2.3 Well Data :

Number of Exploratory wells : Onland – 375

Offshore – 182

Hydrocarbon : Basin with several oil & gas Discoveries / fields shows

3. BLOCKS ON OFFER :

6 Blocks (3 in Deep Water, 3 in

Shallow Offshore)

KG-DWN-2005/1

KG-DWN-2005/2

KG-DWN-2005/3

KG-OSN-2005/1

KG-OSN-2005/2

KG-OSN-2005/3

4. BASIN TYPE : Pericratonic rift basin 5. PROVEN SEDIMENTARY SECTION :

5.1 GENERALISED STRATIGRAPHIC SEQUENCE

AGE RANGE THICKNESS (km) Proterozoic - Recent ~ 7

5.2 LITHO-STRATIGRAPHIC SECTION ALONG A NE – SW PROFILE,

KRISHNA GODAVARI BASIN 5.3 NW-SE GEOLOGICAL CROSS SECTION, KRISHNA GODAVARI

BASIN

Tanuku FormationKommugudem

Formation

Narsapur Claystone

Krishna Fm

5000

4000

3000

2000

1000

0

5000

4000

3000

2000

1000

0

5000

4000

3000

2000

1000

0

5000

4000

3000

2000

1000

0

Depth in m

eters

Basement

NDG-1 BNT-1BBL-1 KVT-1 MDP-1 MVD-1

NESW

+ + + + + + + + + ++ + + + +

++

+ + + +

++

+ + + + + + + +

+ + +

++ + +

SCALE75 km502525 0

RazoleFormationMatsyapuri Sandstone

NimmakuruSandstone

Tirupati Sandstone

RaghavapuramShale

PalakolluShale

6. PETROLEUM GEOLOGY :

EXPECTED RESERVOIRS : Permian to Triassic sandstones Cretaceous to Paleocene sandstones Eocene limestones & sandstones Miocene to Pliocene sandstones EXPECTED SOURCE ROCKS : Shales in Permian, Cretaceous & Paleocene - Eocene sequences EXPECTED CAP ROCKS : Intraformational shales

7. PROVEN /EXPECTED PLAY TYPES :

(i) Structural highs / Fault Closures

(ii) Unconformity related traps

(iii) Wedgeouts

(iv) Channel-Levee systems

BLOCKS ON OFFER

LOCATION OF THE BLOCKS

BLOCK : KG-DWN-2005/1 1. BLOCK AREA : 1,718 Sq. Km (approx.)

2. WATER DEPTH RANGE : from 3000m to 3300m


3.1 Seismic Data 2D – 215 LKM

3.2 OTHER SURVEYS : Gravity Magnetic Survey

3.3 WELL DATA

Number of Exploratory Wells - Nill

CEID

W01-101

100

300

500

600

CEID

W01-107

2800

3000

3200

3400

CEID

W01-111B

2800

3000

3200

3400

3525

CEID

W01-117

100

300

500

700

900

1019

CEID

W01-201

100

300

500

700

900

1000

CEID

W01-203

5500

5700

5900

6100

6300

6500

6600

CEID

W01-205

3500

3700

3874

CEID

W01-207

100

200

EC-341

4000

4199

0 2,000 4,000

Meters

Scale 1 : 100000

14 30 0014 34 00

14 38 0014 42 00

14 46 0014 50 00

14 54 00

81 58 00

14 30 0014 34 00

14 38 0014 42 00

14 46 0014 50 00

14 54 00

82 02 00 82 06 00 82 10 00 82 14 00 82 18 00 82 22 00 82 26 00 82 30 00

81 58 00 82 02 00 82 06 00 82 10 00 82 14 00 82 18 00 82 22 00 82 26 00 82 30 00

CEID

W01-101

100

300

500

600

CEID

W01-107

2800

3000

3200

3400

CEID

W01-111B

2800

3000

3200

3400

3525

CEID

W01-117

100

300

500

700

900

1019

CEID

W01-201

100

300

500

700

900

1000

CEID

W01-203

5500

5700

5900

6100

6300

6500

6600

CEID

W01-205

3500

3700

3874

CEID

W01-207

100

200

EC-341

4000

4199

0 2,000 4,000

Meters

Scale 1 : 100000

14 30 0014 34 00

14 38 0014 42 00

14 46 0014 50 00

14 54 00

81 58 00

14 30 0014 34 00

14 38 0014 42 00

14 46 0014 50 00

14 54 00

82 02 00 82 06 00 82 10 00 82 14 00 82 18 00 82 22 00 82 26 00 82 30 00

81 58 00 82 02 00 82 06 00 82 10 00 82 14 00 82 18 00 82 22 00 82 26 00 82 30 00

4. SOME OF THE INTERPRETED PLAY TYPES

SECTION SHOWS TWO STRUCTURAL PROSPECTS, ONE OVER 82o RIDGE AND THE OTHER IN THE EOCENE - CRETACEOUS SECTION NORTH OF SP 6000 AND STRATIGRAPHIC WEDGEOUT / PINCHOUT PROSPECTS AT THE FLANKS OF THE 82o RIDGE

SLINE CEIDW01-203 (MIG)

5750

6000

6250

6500

6750

7000

7250

7500

7750

8000

8250

8568

TWT

IN

MS

6500 659964006300620061006000590058005700N CDP

560055005450

MIOCENE TOP

OLIGOCENE TOP

EOCENE TOP

UPPER CRETACEOUS TOPBASEMENT

H I G H

H I G HH I G H

WEDGEOUT PROSPECTWEDGEOUT PROSPECT

H I G H

SLINE CEIDW01-203 (MIG)

5750

6000

6250

6500

6750

7000

7250

7500

7750

8000

8250

8568

TWT

IN

MS

6500 659964006300620061006000590058005700N CDP

560055005450

MIOCENE TOP

OLIGOCENE TOP

EOCENE TOP

UPPER CRETACEOUS TOPBASEMENT

H I G H

H I G HH I G H

WEDGEOUT PROSPECTWEDGEOUT PROSPECT

H I G H

BLOCK : KG-DWN-2005/2 1. BLOCK AREA : 1949 Sq. Km (approx.)


2.1 Seismic Data : 2D – 985 LKM


2.3 WELL DATA

Number of Exploratory Well - Nil

I88-205C

5347

5547

57475787

I88-214603

403

278I88-216

146

41

I88-218

423

223

43

I88-220451

251

5141

I88-222

497

297

97

42I88-224

578

378

178

48

I88-226523

323

151

I88-228

104

44

KB-97-02

2

202

402

602

KB-97-04

572

772

972

1172

1372

1442

KB-97-05

446

646

721

KB-97-06

975

1175

1375

1575

1580

KB-97-07

4

204

404409

KB-97-08

2698

2898

3098

32983307

KB-97-09

332

532

732

767

KB-97-10

2564

2764

2964

3174

KB-97-11

72

272

472

526

KB-97-13

307

507

672

KB-97-15

72

272

472

672

780

KB-97-17

6

206

406

606

780

KB-97-19

2

202

402

602622

KB-97-21

36

236

436461

KB-97-23

541

741

760

NKGD-502551

3521

37213806

1918

2118

2318

2518

2718

2793

NKGD423550

2762

2962

3162

3362

3562

3762

3962

41624192

NKGD425562

2364

2564

2764

2964

3164

3364

3564

3764

3964

4094

NKGD427A561

2402

2602

2802

3002

3202

3402

3602

3722

NKGD429554

2575

2775

2975

3175

3320

NKGD501A571

3711

3911

4111

4311

4511

4606

NKGD503569

3924

4124

4324

45244584

NKGD504552

4270

4470

4670

4870

5070

5245 NKGD505568

3746

3946

4146

4346

45464552

NKGD506A553

886

1086

1286

1486

1686

1886

2086

2119

NKGD507567

4219

4419

46194629

4623

4823

NKGS-14A646

991

1191

1391

1591

1791

1991

2191

2391

2591

2791

2866

17 02 0017 06 00

17 10 0017 14 00

17 18 0017 22 00

17 26 0017 30 00

17 34 0017 38 00

17 42 0017 46 00

17 50 00

83 34 00 83 38 00 83 42 00 83 46 00 83 50 00 83 54 00 83 58 00 84 02 00

NKGD51654

42562

4838

NKGD402560

3164

372

304

346

3724

2375

611

83 34 00 83 38 00 83 42 00 83 46 00 83 50 00 83 54 00 83 58 00 84 02 00

17 02 0017 06 00

17 10 0017 14 00

17 18 0017 22 00

17 26 0017 30 00

17 34 0017 38 00

17 42 0017 46 00

17 50 00

Block Boundary

Seismic Lines

LEGEND

0 5,000 10,000 Meters

Scale 1 : 250000

I88-205C

5347

5547

57475787

I88-214603

403

278I88-216

146

41

I88-218

423

223

43

I88-220451

251

5141

I88-222

497

297

97

42I88-224

578

378

178

48

I88-226523

323

151

I88-228

104

44

KB-97-02

2

202

402

602

KB-97-04

572

772

972

1172

1372

1442

KB-97-05

446

646

721

KB-97-06

975

1175

1375

1575

1580

KB-97-07

4

204

404409

KB-97-08

2698

2898

3098

32983307

KB-97-09

332

532

732

767

KB-97-10

2564

2764

2964

3174

KB-97-11

72

272

472

526

KB-97-13

307

507

672

KB-97-15

72

272

472

672

780

KB-97-17

6

206

406

606

780

KB-97-19

2

202

402

602622

KB-97-21

36

236

436461

KB-97-23

541

741

760

NKGD-502551

3521

37213806

1918

2118

2318

2518

2718

2793

NKGD423550

2762

2962

3162

3362

3562

3762

3962

41624192

NKGD425562

2364

2564

2764

2964

3164

3364

3564

3764

3964

4094

NKGD427A561

2402

2602

2802

3002

3202

3402

3602

3722

NKGD429554

2575

2775

2975

3175

3320

NKGD501A571

3711

3911

4111

4311

4511

4606

NKGD503569

3924

4124

4324

45244584

NKGD504552

4270

4470

4670

4870

5070

5245 NKGD505568

3746

3946

4146

4346

45464552

NKGD506A553

886

1086

1286

1486

1686

1886

2086

2119

NKGD507567

4219

4419

46194629

4623

4823

NKGS-14A646

991

1191

1391

1591

1791

1991

2191

2391

2591

2791

2866

17 02 0017 06 00

17 10 0017 14 00

17 18 0017 22 00

17 26 0017 30 00

17 34 0017 38 00

17 42 0017 46 00

17 50 00

83 34 00 83 38 00 83 42 00 83 46 00 83 50 00 83 54 00 83 58 00 84 02 00

NKGD51654

42562

4838

NKGD402560

3164

372

304

346

3724

2375

611

83 34 00 83 38 00 83 42 00 83 46 00 83 50 00 83 54 00 83 58 00 84 02 00

17 02 0017 06 00

17 10 0017 14 00

17 18 0017 22 00

17 26 0017 30 00

17 34 0017 38 00

17 42 0017 46 00

17 50 00

Block Boundary

Seismic Lines

LEGEND

0 5,000 10,000 Meters

Scale 1 : 250000

3. STRATIGRAPHIC SEQUENCE ENCOUNTERED IN NEARBY WELL KG-DWN-98/4-A-1

Depth(m)AGE LITHOLOGY DESCRIPTIONFORMATION REMARKS

200

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

3200

3400

W A

T E

RC

O L

U M

NN

E

O

G

E N

E

PALAEOGENE

CRETACEOUS

UNIT – II

CRETACEOUS

UNIT – I

RIFT

FILL

ARCHAEAN

CLAYSTONE

LIMESTONE

SHALE AND SILTSTONE

SILTY SHALE

SHALE AND SILTSTONE

SHALE

SHALE AND SILTSTONE

SANDSTONE

BASEMENT

DD : 3520m

SANDSTONE


200

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

3200

3400

W A

T E

RC

O L

U M

NN

E

O

G

E N

E

PALAEOGENE

CRETACEOUS

UNIT – II

CRETACEOUS

UNIT – I

RIFT

FILL

ARCHAEAN

CLAYSTONE

LIMESTONE

SHALE AND SILTSTONE

SILTY SHALE

SHALE AND SILTSTONE

SHALE

SHALE AND SILTSTONE

SANDSTONE

BASEMENT

DD : 3520m

SANDSTONE

4. INTERPRETED PLAY TYPE

SECTION SHOWS FOUR STRATIGRAPHIC PINCHOUTS (PROSPECTS) : (1) & (2) WITHIN UPPER CRETACEOUS AND (3) & (4) WITHIN EOCENE)

2700 2600 2500 24342800290030003100320033091824

2250

2500

2750

3000

3250

3500

3750

4000

4250

4500

4920

NW SELINE NKGD427A561 (MIG)

TWT

IN

MS

EOCENE TOPUPPER CRETACEOUS TOP

LOWER CRETACEOUS TOP

3

2

1

4

CDP


2700 2600 2500 24342800290030003100320033091824

2250

2500

2750

3000

3250

3500

3750

4000

4250

4500

4920

NW SELINE NKGD427A561 (MIG)

TWT

IN

MS

EOCENE TOPUPPER CRETACEOUS TOP


33

22

11

4

CDP


BLOCK : KG-DWN-2005/3

1. BLOCK AREA : 2246 Sq. Km (approx.)




2.3 WELL DATA

Number of Exploratory Well - Nill

EC-160

12400

12200

12000

11800

11600

11400

11200

11000

10800

10600

10400

Ec-241

3920

3720

3520

3320

3120

2920

2720

2520

2320

2120

1920

EC-231

2360

NKGD501A571959

1159

1359

1541

NKGD503569

1677

1477

1277

1077

887

NKGD505568

883

1083

1283

1423

KGD5075671152

952

887

KGD518A56

3

2789

2589

2389

2189

1989

1889

0 2,000 4,000 M eters

Scale 1 : 1 00000

17 10 00

84 10 00

2250

84 14 00 84 18 00 84 22 00 84 26 00 84 30 00 84 34 00

17 06 0017 02 00

16 58 0016 54 00

16 50 0016 46 00

16 42 0016 38 00

16 34 0016 30 00

84 10 00 84 14 00 84 18 00 84 22 00 84 26 00 84 30 00 84 34 00

17 10 0017 06 00

17 02 0016 58 00

16 54 0016 50 00

16 46 0016 42 00

16 38 0016 34 00

16 30 00

Block Boundary

Seismic Lines

LEGEND

EC-160

12400

12200

12000

11800

11600

11400

11200

11000

10800

10600

10400

Ec-241

3920

3720

3520

3320

3120

2920

2720

2520

2320

2120

1920

EC-231

2360

NKGD501A571959

1159

1359

1541

NKGD503569

1677

1477

1277

1077

887

NKGD505568

883

1083

1283

1423

KGD5075671152

952

887

KGD518A56

3

2789

2589

2389

2189

1989

1889

0 2,000 4,000 M eters

Scale 1 : 1 00000

0 2,000 4,000 M eters

Scale 1 : 1 00000

17 10 00

84 10 00

2250

84 14 00 84 18 00 84 22 00 84 26 00 84 30 00 84 34 00

17 06 0017 02 00

16 58 0016 54 00

16 50 0016 46 00

16 42 0016 38 00

16 34 0016 30 00

84 10 00 84 14 00 84 18 00 84 22 00 84 26 00 84 30 00 84 34 00

17 10 0017 06 00

17 02 0016 58 00

16 54 0016 50 00

16 46 0016 42 00

16 38 0016 34 00

16 30 00

Block Boundary

Seismic Lines

LEGEND

Block Boundary

Seismic Lines

LEGEND

3. STRATIGRAPHIC SEQUENCE ENCOUNTERED IN WELL KG-DWN-98/4-K-1


SECTION SHOWS A CONSPICUOUS ANTICLINAL HIGH, INVOLVING OLIGOCENE TO PLIOCENE SEQUENCES. BASAL PART OF THE OLIGOCENE SECTION PINCHES OUT TOWARDS NW, CREATING A PINCHOUT PROSPECT

2700

3000

3300

3600

3900

4200

4500

4800

5100

5400

5700

6000

6300

6600

6900


W A

T E

RC

O L

U M

NM

I O

C E

N E

–P

L I O

C E

N E

OLIGOCENE

EOCENE

PALEOCENE

U P

P E

R

C R

E T

A C

E O

U S

LOWERCRETACEOUS

ARCHAEN

EQUIVALENT OF

RAGH AVAPUR AM SHALE

BASEMENT

EQUIVALENT

OF

CHINTAL APALI

SHALE

EQUIVALENT OF PAL AKOTTU SHAL E

EQUIVALENT OF

PASARL APUDI SHALE

EQUIVALENT OF MATSYAPURI

SHALE

EQUIVALENT

OF

GOD AVARI CL AY

AND

RAVAA

FORAMTION

SHALE

CLAYSTONE AND SANDSTONE

CLAYSTONE, SANDSTONE AND LIMESTONE

CLAYSTONE, SANDSTONE AND SILTSTONE

CLAYSTONE,

SANDSTONE

AND

SILTSTONE


BASEMENT

DD : 7081m

2700

3000

3300

3600

3900

4200

4500

4800

5100

5400

5700

6000

6300

6600

6900


W A

T E

RC

O L

U M

NM

I O

C E

N E

–P

L I O

C E

N E

OLIGOCENE

EOCENE

PALEOCENE

U P

P E

R

C R

E T

A C

E O

U S

LOWERCRETACEOUS

ARCHAEN

EQUIVALENT OF

RAGH AVAPUR AM SHALE

BASEMENT

EQUIVALENT

OF

CHINTAL APALI

SHALE

EQUIVALENT OF PAL AKOTTU SHAL E

EQUIVALENT OF

PASARL APUDI SHALE

EQUIVALENT OF MATSYAPURI

SHALE

EQUIVALENT

OF

GOD AVARI CL AY

AND

RAVAA

FORAMTION

SHALE

CLAYSTONE AND SANDSTONE

CLAYSTONE, SANDSTONE AND LIMESTONE


CLAYSTONE,

SANDSTONE

AND

SILTSTONE


BASEMENT

DD : 7081m

2250 2500 2750 3000 3250 3500 3750 41271839

4750

5000

5250

5500

5750

6000

6250

6500

6750

7000

7250

4384

NW SELINE EC-95-241 F (MIG)

TWT

IN

MS

CDP

NEAR MIOCENE TOP

NEAR OLOGOCENE TOP

NEAR EOCENE TOP

NEAR UPPER CRETACEOUS TOP

NEAR PALEOCENE TOP

S T R U C T U R A L H I G H

PINCHOUT PROSPECT


2250 2500 2750 3000 3250 3500 3750 41271839

4750

5000

5250

5500

5750

6000

6250

6500

6750

7000

7250

4384

NW SELINE EC-95-241 F (MIG)

TWT

IN

MS

CDP

NEAR MIOCENE TOP

NEAR OLOGOCENE TOP

NEAR EOCENE TOP


NEAR PALEOCENE TOP


PINCHOUT PROSPECT


BLOCK : KG-OSN-2005/1 1. BLOCK AREA : 2810 Sq. Km (approx.)




2.3 WELL DATA

Number of Exploratory Well - 3

2002

3940

2202

2402

2602

2802

3002

3202

3402

3602

3802

1001

2360

1201

1401

1601

1801

2001

2201

1KB -9

0-07

2792

32923348

1KB-90

-01

11340

1184011891

1KB

-90-123300

3800

4300

4439

1KB-90

-13

4000

4500

5000

5500

6000

6023

1KB-90-14

3820

4320

4820

4940

1KB-90-16

10880

11295

1KB

-90-18

11441

11941

1KB

-90-24

11280

11780

11880 1KB-90-28

11100

11370

1KB-90-30

11400

11640

2KB-90-16

20200

20700

21200

2KB

-90-30

22020

22400

EC95-271-1

1280

780

280

15

KB-90-0

1

580

1080

1405

KB-90-0

7

1072

1572

2072

2572

2900

1KB -90

-11

910

1410

2410

2910

3178

KB-90- 12

1315

1815

2260

1KB90

-03

12135

12635

12950

KB-90 -14

0

500

929

KB-90-16

1480

1980

2200

KB-90 -18

980

1480

1980

2325

KB

-90-21

0

500

1000

1500

2000

2111

KB-90-23

0

500

1000

1500

1880

KB-90 -24

0

500

1400

KB-90- 26

1080

1580

2080

2400

KB-90 -28

0

500

1000

1200

KB-90-30

505

1005

KB-90 -32

0

500

1000

1500

1935

I8820

1B

2336

2836

3020

I8820

5A

1364

1864

1997

KB- 90- 092435

2935

3435

3935

4435

4935

5435

5561

KB- 90- 13

2394

2894

3394

3671

2KB90

-03

21065

21487

KB90-05

2446

2946

3446

3946

4335

3KB90

-03

31720

32220

32687

3KB90-11

30850

31059

I8820

1 2351

2042

2221

1721

1221

1001

I8820

5

101

601

1101

1410

I8820

9

131

631

1131

1390

I88248

1861

2162

I88248A

1876

1376

506

I88250A

357

857

1357

1857

2064

I88252

221

721

1221

1721

1975

I88254

1551

1880

I88254A

1566

1066

566

6664

I88256

101

601

1101

1601

1814

I88258

1041

541528

I88258A

707

207

-22

I88258B

1026

1526

1715I88260

101

601

1101

16011630

I88262101

601

1101

1488I88264 1

501

1001

1263

I88266

101

601

1101

1252

I88268

1128

628

128

-21

I88270

922

487

I88270A

592

92

-20

KB90-03

3600

4100

4198

KB93-09

151

651

1151

1247

KB

93-11

0

500

922

KB93-13

160

660

802

KB93-15

0

500

647

0 4,000 Me ters

Scale 1 : 1 00000

82 28 82 32 82 36 82 40 82 44 82 48 82 52 82 56 83 00 83 04 83 08 83 12 83 16 83 20

I8820

1A

876

21520

1505

1531

1000

12421

1910

82 28 82 32 82 36 82 40 82 44 82 48 82 52 82 56 83 00 83 04 83 08 83 12 83 16 83 20

LEGEND

1728

1724

1720

1716

1712

1708

1704

1700

1656

1652

1648

1644Block Boundary

Seismic Lines

1728

1724

1720

1716

1712

1708

1704

1700

1656

1652

1648

1644

2002

3940

2202

2402

2602

2802

3002

3202

3402

3602

3802

1001

2360

1201

1401

1601

1801

2001

2201

1KB -9

0-07

2792

32923348

1KB-90

-01

11340

1184011891

1KB

-90-123300

3800

4300

4439

1KB-90

-13

4000

4500

5000

5500

6000

6023

1KB-90-14

3820

4320

4820

4940

1KB-90-16

10880

11295

1KB

-90-18

11441

11941

1KB

-90-24

11280

11780

11880 1KB-90-28

11100

11370

1KB-90-30

11400

11640

2KB-90-16

20200

20700

21200

2KB

-90-30

22020

22400

EC95-271-1

1280

780

280

15

KB-90-0

1

580

1080

1405

KB-90-0

7

1072

1572

2072

2572

2900

1KB -90

-11

910

1410

2410

2910

3178

KB-90- 12

1315

1815

2260

1KB90

-03

12135

12635

12950

KB-90 -14

0

500

929

KB-90-16

1480

1980

2200

KB-90 -18

980

1480

1980

2325

KB

-90-21

0

500

1000

1500

2000

2111

KB-90-23

0

500

1000

1500

1880

KB-90 -24

0

500

1400

KB-90- 26

1080

1580

2080

2400

KB-90 -28

0

500

1000

1200

KB-90-30

505

1005

KB-90 -32

0

500

1000

1500

1935

I8820

1B

2336

2836

3020

I8820

5A

1364

1864

1997

KB- 90- 092435

2935

3435

3935

4435

4935

5435

5561

KB- 90- 13

2394

2894

3394

3671

2KB90

-03

21065

21487

KB90-05

2446

2946

3446

3946

4335

3KB90

-03

31720

32220

32687

3KB90-11

30850

31059

I8820

1 2351

2042

2221

1721

1221

1001

I8820

5

101

601

1101

1410

I8820

9

131

631

1131

1390

I88248

1861

2162

I88248A

1876

1376

506

I88250A

357

857

1357

1857

2064

I88252

221

721

1221

1721

1975

I88254

1551

1880

I88254A

1566

1066

566

6664

I88256

101

601

1101

1601

1814

I88258

1041

541528

I88258A

707

207

-22

I88258B

1026

1526

1715I88260

101

601

1101

16011630

I88262101

601

1101

1488I88264 1

501

1001

1263

I88266

101

601

1101

1252

I88268

1128

628

128

-21

I88270

922

487

I88270A

592

92

-20

KB90-03

3600

4100

4198

KB93-09

151

651

1151

1247

KB

93-11

0

500

922

KB93-13

160

660

802

KB93-15

0

500

647

0 4,000 Me ters

Scale 1 : 1 00000

0 4,000 Me ters

Scale 1 : 1 00000

82 28 82 32 82 36 82 40 82 44 82 48 82 52 82 56 83 00 83 04 83 08 83 12 83 16 83 2082 28 82 32 82 36 82 40 82 44 82 48 82 52 82 56 83 00 83 04 83 08 83 12 83 16 83 20

I8820

1A

876

21520

1505

1531

1000

12421

1910

82 28 82 32 82 36 82 40 82 44 82 48 82 52 82 56 83 00 83 04 83 08 83 12 83 16 83 2082 28 82 32 82 36 82 40 82 44 82 48 82 52 82 56 83 00 83 04 83 08 83 12 83 16 83 20

LEGEND

1728

1724

1720

1716

1712

1708

1704

1700

1656

1652

1648

1644

1728

1724

1720

1716

1712

1708

1704

1700

1656

1652

1648

1644Block Boundary

Seismic Lines

1728

1724

1720

1716

1712

1708

1704

1700

1656

1652

1648

1644

1728

1724

1720

1716

1712

1708

1704

1700

1656

1652

1648

1644

3. STRATIGRAPHIC SEQUENCE ENCOUNTERED IN WELL KG-20-A2


A PROMINENT STRUCTURAL HIGH WITH AMPLITUDE OF ABOUT 75 M IS OBSERVED WITHIN UPPER JURASSIC SECTION. STRATIGRAPHIC WEDGEOUTS ARE ALSO OBSERVED AT FLANKS OF BASEMENT HIGH TOWARDS NW. HORIZON MARKING BASEMENT TOP IS TENTATIVE

AGE DEPTH LITHOLOGY DESCRIPTION ENVIRONMENT

M. Jurassic

U. Jurassic –

Lr. Cretaceous

Lr. Cretaceous

U. Cretaceous

Paleocene 600

1000

1400

1800

2200

2600

3000

3400

3600

Claystone with interbedded sandstone

Claystone

Sandstone with interbedded claystone

Sandstone

Claystone

Claystone with thin limestones

Claystone


Interbedded sandstone, claystone & siltstone

Claystone with thin interbeddedsandstone

Interbedded claystone & sandstone

Claystone

Interbedded sandstone & claystone

Continental deposits

Mid. – Lr. Bathyal

Middle Bathyal

Marine Up. Bathyal

Shelf sediments

~~~~~~~~~~~~

D.D.-4270 m.

AGE DEPTH LITHOLOGY DESCRIPTION ENVIRONMENT

M. Jurassic

U. Jurassic –

Lr. Cretaceous

Lr. Cretaceous

U. Cretaceous

Paleocene 600

1000

1400

1800

2200

2600

3000

3400

3600

Claystone with interbedded sandstone

Claystone

Sandstone with interbedded claystone

Sandstone

Claystone


Claystone


Interbedded sandstone, claystone & siltstone

Claystone with thin interbeddedsandstone

Interbedded claystone & sandstone

Claystone

Interbedded sandstone & claystone

Continental deposits

Mid. – Lr. Bathyal

Middle Bathyal

Marine Up. Bathyal

Shelf sediments

~~~~~~~~~~~~~~~~~~~~~~~~

D.D.-4270 m.

130014001566 11001200 9001000 700800 600 500 400 271

500

1000

1500

2000

2500

3000

3500

4000

0

NW SELINE I88260 (MIG)

TWT

IN

MS


CDP

NEAR LOWER CRETACEOUS TOP

NEAR UPPER JURASSIC TOP

BASEMENT TOP

H I G H

130014001566 11001200 9001000 700800 600 500 400 271

500

1000

1500

2000

2500

3000

3500

4000

0

NW SELINE I88260 (MIG)

TWT

IN

MS


CDP


NEAR UPPER JURASSIC TOP

BASEMENT TOP

H I G H





2.3 WELL DATA

Number of Exploratory Well - 1

1KB-90

-07

2792

3292

3792

4292

4792

5292

5750

1KB-90-38

11600

1210012155

1KB-90-46

10200

10700

10985 2KB90-11

3600

4100

4600

4952

4KB90-03

43880

44380

44880

45344

I8820

1B

3005

3505

4005

4448

I88205A1807

2307

2807

3199

I88232

440

940

1440

19401944I88234

349

849

1349

1849

1976I88236

1571

1964I88236A

1586

1086

586

402

I88238

489

989

1489

19892012

I88240

1801

2087

I88240A

1816

1316

816

501

I88242

610

1110

1610

21102170

I88244A1916

1416

916

539

I88248

1861

2162

I88248A

1876

1376

876

506

KB-90-09

650

1150

1650

2150

2630

KB-90-13

600

1100

1600

2100

2575

KB-90-34

0

500

1000

1360

KB-90 -36

340

840

1340

1840

2340

2400

KB-90-38

0

500

1000

1500

1733

KB-90-40

560

1060

1560

2060

2400

KB-90-42

0

500

1000

1500

2000

2225

KB-90-44

340

840

1340

1840

2340

2389

KB90-05

776

1276

1776

2276

2692

1KB90-0

3

11757

1225712355

2KB-90-46

20884

21384

21825

1KB90-11

3087

3566

KB-4#1B

0 2 ,000 4,000 Meter s

Scale 1 : 100000

1740

83 00 83 04 83 08 83 12 83 16 83 20 83 24 83 28 83 32 83 36

1736

1732

1728

1724

1720

1716

1712

1708

1704

1700

1656

1740

1736

1732

1728

1724

1720

1716

1712

1708

1704

1700

1656 83 00 83 04 83 08 83 12 83 16 83 20 83 24 83 28 83 32 83 36

Block Boundary

Seismic Lines

LEGEND

1KB-90

-07

2792

3292

3792

4292

4792

5292

5750

1KB-90-38

11600

1210012155

1KB-90-46

10200

10700

10985 2KB90-11

3600

4100

4600

4952

4KB90-03

43880

44380

44880

45344

I8820

1B

3005

3505

4005

4448

I88205A1807

2307

2807

3199

I88232

440

940

1440

19401944I88234

349

849

1349

1849

1976I88236

1571

1964I88236A

1586

1086

586

402

I88238

489

989

1489

19892012

I88240

1801

2087

I88240A

1816

1316

816

501

I88242

610

1110

1610

21102170

I88244A1916

1416

916

539

I88248

1861

2162

I88248A

1876

1376

876

506

KB-90-09

650

1150

1650

2150

2630

KB-90-13

600

1100

1600

2100

2575

KB-90-34

0

500

1000

1360

KB-90 -36

340

840

1340

1840

2340

2400

KB-90-38

0

500

1000

1500

1733

KB-90-40

560

1060

1560

2060

2400

KB-90-42

0

500

1000

1500

2000

2225

KB-90-44

340

840

1340

1840

2340

2389

KB90-05

776

1276

1776

2276

2692

1KB90-0

3

11757

1225712355

2KB-90-46

20884

21384

21825

1KB90-11

3087

3566

KB-4#1B

0 2 ,000 4,000 Meter s

Scale 1 : 1000000 2 ,000 4,000 Meter s

Scale 1 : 100000

1740

83 00 83 04 83 08 83 12 83 16 83 20 83 24 83 28 83 32 83 36

1736

1732

1728

1724

1720

1716

1712

1708

1704

1700

1656

1740

1736

1732

1728

1724

1720

1716

1712

1708

1704

1700

1656 83 00 83 04 83 08 83 12 83 16 83 20 83 24 83 28 83 32 83 36

Block Boundary

Seismic Lines

LEGEND

3. STRATIGRAPHIC SEQUENCE ENCOUNTERED IN WELL KG-4-1B

DESCRIPTIONAGE

DD 3400m

SAMPLE NOT COLLECTED

LITHO-LOGY

P L

I

O C

E N

ET

OY

O U

N G

E R

DEPTH(mts)

300

600

900

1200

1500

1800

2100

2400

2700

3000

3300

CLAY / CLAYSTONE WITH SAND / SANDSTONE AND LIMESTONE

SAND / SANDSTONE WITH CLAYSTONE AND MINOR COAL

CLAYSTONE / SHALE AND SANDSTONE WITH MINOR SILTSTONE

SANDSTONE AND SHALE WITH MINOR COAL

DOMINANTLY SAND / SANDSTONE AND SHALE / CLAYSTONE WITH MINOR SILTSTONE AND COAL

UPPERCRETACE-

OUS

L O

W E

R

C R

E T

A C

E O

U S

UPP

ER

JUR

ASSI

C TO

LO

WER

CR

ETA-

CEO

US

P E

R M

O -

T R

I A

S S

I C

SEA BED

DESCRIPTIONAGE

DD 3400m

SAMPLE NOT COLLECTED

LITHO-LOGY

P L

I

O C

E N

ET

OY

O U

N G

E R

DEPTH(mts)

300

600

900

1200

1500

1800

2100

2400

2700

3000

3300

DEPTH(mts)

300

600

900

1200

1500

1800

2100

2400

2700

3000

3300

CLAY / CLAYSTONE WITH SAND / SANDSTONE AND LIMESTONE

SAND / SANDSTONE WITH CLAYSTONE AND MINOR COAL

CLAYSTONE / SHALE AND SANDSTONE WITH MINOR SILTSTONE

SANDSTONE AND SHALE WITH MINOR COAL

DOMINANTLY SAND / SANDSTONE AND SHALE / CLAYSTONE WITH MINOR SILTSTONE AND COAL

UPPERCRETACE-

OUS

L O

W E

R

C R

E T

A C

E O

U S

UPP

ER

JUR

ASSI

C TO

LO

WER

CR

ETA-

CEO

US

P E

R M

O -

T R

I A

S S

I C

SEA BED


SECTION SHOWS THINNING OF MESOZOIC SEQUENCES TOWARDS NE. FAULT BOUNDED STRUCTURAL FEATURES ARE OBSERVED IN THE JURASSIC SECTION). WELL KB-4-1B APPEARS TO HAVE BEEN DRILLED ON A STRUCTURAL SALIENT.

3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 520029020

500

1000

1500

2000

2500

3000

SW NELINE KB-90-07 (MIG)

TWT

IN

MS

CDP



UPPER JURASSIC TOP

BASEMENT TOP

KB-4-1B3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 52002902

0

500

1000

1500

2000

2500

3000

SW NELINE KB-90-07 (MIG)

TWT

IN

MS

CDP



UPPER JURASSIC TOP

BASEMENT TOP

KB-4-1B





2.3 WELL DATA

Number of Exploratory Well - Nill

6460

6960

7460

7960

8217

I88-203E

5760

6260

6760

7199

I88-206

640

1140

1482

1140

1640

1828

1180

1680

1826

I88-210

760

1260

1760

1824

I88-208

1300

1793

I88-204

1060

1560

2000

1

501

675

NKGS-12647

2520

3020

3120

NKGS-10648

1900

2400

2900

3040

NKGS-06649

1500

2000

2500

3000

3080

NKGS-04650

1000

1500

2000

2500

30003040

NKGS-08651

1500

2000

2500

3000

3120

NKGS-02652

1500

2 000

2 500

3000

2440

1940

1440

945 1064

1564

2064

2362

NKGS- 53666

2339

1839

1339

992

NKGS- 57667

1118

1618

2118

2324

NKGS-61668

2289

1789

1289

10771140

1640

2140

2221

1139

1639

2095

2048

1548

1048

985

1080

1580

2080

2112

NKGS-63674

2229

1729

1229

1073

1138

1638

2138

2239

NKGS-55676

2263

1763

1263

995

1059

1559

2059

2301

2366

1866

1366

985

939

1439

1939

2344

0 4,000 Meters

Scale 1 : 100000

1816

83 42 83 46 83 50 83 54 83 58 84 02 84 06 84 10 84 14 84 18

I88-214NKGS-43679

NKGS-45664I88-212A

NKGS-47678NKGS-49665

NKGS-51677

I88-202NKGS-71672

NKGS-73671

NKGS-67673

NKGS-59675

800

680

640

1400

1000

1000

1000

NKGS-65669

I88-201E

1812

1808

1804

1800

1756

1752

1748

83 42 83 46 83 50 83 54 83 58 84 02 84 06 84 10 84 14 84 18

1816

1812

1808

1804

1800

1756

1752

1748

Block Boundary

Seismic Lines

LEGEND

6460

6960

7460

7960

8217

I88-203E

5760

6260

6760

7199

I88-206

640

1140

1482

1140

1640

1828

1180

1680

1826

I88-210

760

1260

1760

1824

I88-208

1300

1793

I88-204

1060

1560

2000

1

501

675

NKGS-12647

2520

3020

3120

NKGS-10648

1900

2400

2900

3040

NKGS-06649

1500

2000

2500

3000

3080

NKGS-04650

1000

1500

2000

2500

30003040

NKGS-08651

1500

2000

2500

3000

3120

NKGS-02652

1500

2 000

2 500

3000

2440

1940

1440

945 1064

1564

2064

2362

NKGS- 53666

2339

1839

1339

992

NKGS- 57667

1118

1618

2118

2324

NKGS-61668

2289

1789

1289

10771140

1640

2140

2221

1139

1639

2095

2048

1548

1048

985

1080

1580

2080

2112

NKGS-63674

2229

1729

1229

1073

1138

1638

2138

2239

NKGS-55676

2263

1763

1263

995

1059

1559

2059

2301

2366

1866

1366

985

939

1439

1939

2344

0 4,000 Meters

Scale 1 : 1000000 4,000 Meters

Scale 1 : 100000

1816

83 42 83 46 83 50 83 54 83 58 84 02 84 06 84 10 84 14 84 18

I88-214NKGS-43679

NKGS-45664I88-212A

NKGS-47678NKGS-49665

NKGS-51677

I88-202NKGS-71672

NKGS-73671

NKGS-67673

NKGS-59675

800

680

640

1400

1000

1000

1000

NKGS-65669

I88-201E

1812

1808

1804

1800

1756

1752

1748

83 42 83 46 83 50 83 54 83 58 84 02 84 06 84 10 84 14 84 18

1816

1812

1808

1804

1800

1756

1752

1748

Block Boundary

Seismic Lines

LEGEND


FAULT BOUNDED STRUCTURAL FEATURES (POSSIBLY FAULT CLOSURES) ARE OBSERVED WITHIN THE CRETACEOUS SECTION

1400 1500 1600 1700 1800 1900 2000 2100 2234 2236 232412361234

250

500

750

1000

1250

1500

1750

2000

2250

2500

2750

3072

0

NW SELINE NKGS-57667 (MIG)

TWT

IN

MS

SP


WITHIN CRETACEOUS

NEAR BASEMENT TOP

1400 1500 1600 1700 1800 1900 2000 2100 2234 2236 232412361234

250

500

750

1000

1250

1500

1750

2000

2250

2500

2750

3072

0

NW SELINE NKGS-57667 (MIG)

TWT

IN

MS

SP


WITHIN CRETACEOUS

NEAR BASEMENT TOP

krishna godavari basin nelp vii

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