romania flysch zone, assessment unit 40610201...romania flysch zone, assessment unit 40610201 0 5 10...

Romania Flysch Zone, Assessment Unit 40610201

0

5

10

15

20

25

30

35

40

45

50

1860 1880 1900 1920 1940 1960 1980 2000

DRILLING-COMPLETION YEAR

CU

M. N

EW

-FIE

LD

WIL

DC

AT

WE

LL

S (

No

.)


0

1

2

3

4

5

6

1860

1865

1870

1875

1880

1885

1890

1895

1900

1905

1910

1915

1920

1925

1930

1935

1940

1945

1950

1955

1960

1965

1970

1975

1980

1985

1990

1995


NE

W-F

IEL

D W

ILD

CA

T W

EL

LS

(N

o.)


1

10

100

1,000

0 5 10 15 20

OIL-FIELD RANK BY SIZE

KN

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)

First third of fields discovered

Second third of fields discovered

Third third of fields discovered


0

2

4

6

8

10

12

14

1 to

<2

2 to

<4

4 to

<8

8 to

<16

16 to

<32

32 to

<64

64 to

<12

8

128

to <

256

256

to <

512

512

to <

1,02

4

1,02

4 to

<2,

048

2,04

8 to

<4,

096

4,09

6 to

<8,

192

8,19

2 to

<16

,384

16,3

84 to

<32

,768

32,7

68 to

<65

,536

65,5

36 to

<13

1,07

2

131,

072

to <

262,

144

>=26

2,14

4

KNOWN OIL-FIELD SIZE (MMBO)

OIL

FIE

LD

S (

No

.)

Third third offieldsdiscovered

Second thirdof fieldsdiscovered

First third offieldsdiscovered


0

100

200

300

400

500

600

700

1 to

<2

2 to

<4

4 to

<8

8 to

<16

16 to

<32

32 to

<64

64 to

<12

8

128

to <

256

256

to <

512

512

to <

1,02

4

1,02

4 to

<2,

048

2,04

8 to

<4,

096

4,09

6 to

<8,

192

8,19

2 to

<16

,384

16,3

84 to

<32

,768

32,7

68 to

<65

,536

65,5

36 to

<13

1,07

2

131,

072

to <

262,

144

>=26

2,14

4

KNOWN OIL-FIELD SIZE (MMBO)

VO

LU

ME

OF

OIL

(M

MB

O)


1

10

100

1,000

1860 1880 1900 1920 1940 1960 1980 2000

FIELD-DISCOVERY YEAR

KN

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)


1

10

100

1,000

0 5 10 15 20 25 30 35 40 45 50

CUM. NEW-FIELD WILDCAT WELLS (No.)

KN

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)


0

500

1,000

1,500

2,000

2,500

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. K

NO

WN

OIL

VO

LU

ME

(M

MB

O)


0

500

1,000

1,500

2,000

2,500

0 5 10 15 20 25 30 35 40 45 50


CU

M. K

NO

WN

OIL

VO

LU

ME

(M

MB

O)


0

10

20

30

40

50

60

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. O

IL F

IEL

DS

(N

o.)


0

10

20

30

40

50

60

0 5 10 15 20 25 30 35 40 45 50


CU

M. O

IL F

IEL

DS

(N

o.)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

1860 1880 1900 1920 1940 1960 1980 2000


RE

SE

RV

OIR

DE

PT

H, O

IL F

IEL

DS

(m

)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

0 5 10 15 20 25 30 35 40 45 50


RE

SE

RV

OIR

DE

PT

H, O

IL F

IEL

DS

(m

)


0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000

MEAN RESERVOIR DEPTH (m)

GA

S/O

IL, O

IL F

IEL

DS

(C

FG

/BO

)


0

1

2

3

4

5

6

7

8

9

10

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000


NG

L/G

AS

, OIL

FIE

LD

S (

BN

GL

/MM

CF

G)


0

20

40

60

80

100

120

0 to <10 10 to<20

20 to<30

30 to<40

40 to<50

50 to<60

60 to<70

70 to<80

80 to<90

90 to<100

>=100

API GRAVITY (DEGREES)

RE

SE

RV

OIR

S IN

OIL

FIE

LD

S (

No

.)


1

10

100

1,000

0 1 2 3 4 5 6

GAS-FIELD RANK BY SIZE

KN

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)





0

1

2

3

4

5

6

7

6 to

<12

12 to

<24

24 to

<48

48 to

<96

96 to

<19

2

192

to <

384

384

to <

768

768

to <

1,53

6

1,53

6 to

<3,

072

3,07

2 to

<6,

144

6,14

4 to

<12

,288

12,2

88 to

<24

,576

24,5

76 to

<49

,152

49,1

52 to

<98

,304

98,3

04 to

<19

6,60

8

196,

608

to <

393,

216

393,

216

to <

786,

432

786,

432

to <

1,57

2,86

4

>=1,

572,

864

KNOWN GAS-FIELD SIZE (BCFG)

GA

S F

IEL

DS

(N

o.)





0

100

200

300

400

500

600

6 to

<12

12 to

<24

24 to

<48

48 to

<96

96 to

<19

2

192

to <

384

384

to <

768

768

to <

1,53

6

1,53

6 to

<3,

072

3,07

2 to

<6,

144

6,14

4 to

<12

,288

12,2

88 to

<24

,576

24,5

76 to

<49

,152

49,1

52 to

<98

,304

98,3

04 to

<19

6,60

8

196,

608

to <

393,

216

393,

216

to <

786,

432

786,

432

to <

1,57

2,86

4

>=1,

572,

864

KNOWN GAS-FIELD SIZE (BCFG)

VO

LU

ME

OF

GA

S (

BC

FG

)


1

10

100

1,000

1860 1880 1900 1920 1940 1960 1980 2000


KN

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)


1

10

100

1,000

0 5 10 15 20 25 30 35 40 45 50


KN

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)


0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. K

NO

WN

GA

S V

OL

UM

E (

BC

FG

)


0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

0 5 10 15 20 25 30 35 40 45 50


CU

M. K

NO

WN

GA

S V

OL

UM

E (

BC

FG

)


0

2

4

6

8

10

12

14

16

18

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. G

AS

FIE

LD

S (

No

.)


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25 30 35 40 45 50


CU

M. G

AS

FIE

LD

S (

No

.)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

1860 1880 1900 1920 1940 1960 1980 2000


RE

SE

RV

OIR

DE

PT

H, G

AS

FIE

LD

S (

m)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

0 5 10 15 20 25 30 35 40 45 50


RE

SE

RV

OIR

DE

PT

H, G

AS

FIE

LD

S (

m)


0

10

20

30

40

50

60

70

80

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000


LIQ

UID

S/G

AS

, GA

S F

IEL

DS

(B

L/M

MC

FG

)


0

5

10

15

20

25

30

35

40

45

50

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. N

EW

-FIE

LD

WIL

DC

AT

WE

LL

S (

No

.)


0

1

2

3

4

5

6

1860

1865

1870

1875

1880

1885

1890

1895

1900

1905

1910

1915

1920

1925

1930

1935

1940

1945

1950

1955

1960

1965

1970

1975

1980

1985

1990

1995


NE

W-F

IEL

D W

ILD

CA

T W

EL

LS

(N

o.)


1

10

100

1,000

0 5 10 15 20

OIL-FIELD RANK BY SIZE

GR

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)





0

2

4

6

8

10

12

14

16

1 to

<2

2 to

<4

4 to

<8

8 to

<16

16 to

<32

32 to

<64

64 to

<12

8

128

to <

256

256

to <

512

512

to <

1,02

4

1,02

4 to

<2,

048

2,04

8 to

<4,

096

4,09

6 to

<8,

192

8,19

2 to

<16

,384

16,3

84 to

<32

,768

32,7

68 to

<65

,536

65,5

36 to

<13

1,07

2

131,

072

to <

262,

144

>=26

2,14

4

GROWN OIL-FIELD SIZE (MMBO)

OIL

FIE

LD

S (

No

.)





0

100

200

300

400

500

600

700

1 to

<2

2 to

<4

4 to

<8

8 to

<16

16 to

<32

32 to

<64

64 to

<12

8

128

to <

256

256

to <

512

512

to <

1,02

4

1,02

4 to

<2,

048

2,04

8 to

<4,

096

4,09

6 to

<8,

192

8,19

2 to

<16

,384

16,3

84 to

<32

,768

32,7

68 to

<65

,536

65,5

36 to

<13

1,07

2

131,

072

to <

262,

144

>=26

2,14

4

GROWN OIL-FIELD SIZE (MMBO)

VO

LU

ME

OF

OIL

(M

MB

O)


1

10

100

1,000

1860 1880 1900 1920 1940 1960 1980 2000


GR

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)


1

10

100

1,000

0 5 10 15 20 25 30 35 40 45 50


GR

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)


0

500

1,000

1,500

2,000

2,500

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. G

RO

WN

OIL

VO

LU

ME

(M

MB

O)


0

500

1,000

1,500

2,000

2,500

0 5 10 15 20 25 30 35 40 45 50


CU

M. G

RO

WN

OIL

VO

LU

ME

(M

MB

O)


0

10

20

30

40

50

60

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. O

IL F

IEL

DS

(N

o.)


0

10

20

30

40

50

60

0 5 10 15 20 25 30 35 40 45 50


CU

M. O

IL F

IEL

DS

(N

o.)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

1860 1880 1900 1920 1940 1960 1980 2000


RE

SE

RV

OIR

DE

PT

H, O

IL F

IEL

DS

(m

)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

0 5 10 15 20 25 30 35 40 45 50


RE

SE

RV

OIR

DE

PT

H, O

IL F

IEL

DS

(m

)


0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000


GA

S/O

IL, O

IL F

IEL

DS

(C

FG

/BO

)


0

1

2

3

4

5

6

7

8

9

10

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000


NG

L/G

AS

, OIL

FIE

LD

S (

BN

GL

/MM

CF

G)


0

20

40

60

80

100

120

0 to <10 10 to<20

20 to<30

30 to<40

40 to<50

50 to<60

60 to<70

70 to<80

80 to<90

90 to<100

>=100

API GRAVITY (DEGREES)

RE

SE

RV

OIR

S IN

OIL

FIE

LD

S (

No

.)


1

10

100

1,000

0 1 2 3 4 5 6

GAS-FIELD RANK BY SIZE

GR

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)





0

1

2

3

4

5

6

6 to

<12

12 to

<24

24 to

<48

48 to

<96

96 to

<19

2

192

to <

384

384

to <

768

768

to <

1,53

6

1,53

6 to

<3,

072

3,07

2 to

<6,

144

6,14

4 to

<12

,288

12,2

88 to

<24

,576

24,5

76 to

<49

,152

49,1

52 to

<98

,304

98,3

04 to

<19

6,60

8

196,

608

to <

393,

216

393,

216

to <

786,

432

786,

432

to <

1,57

2,86

4

>=1,

572,

864

GROWN GAS-FIELD SIZE (BCFG)

GA

S F

IEL

DS

(N

o.)





0

100

200

300

400

500

600

6 to

<12

12 to

<24

24 to

<48

48 to

<96

96 to

<19

2

192

to <

384

384

to <

768

768

to <

1,53

6

1,53

6 to

<3,

072

3,07

2 to

<6,

144

6,14

4 to

<12

,288

12,2

88 to

<24

,576

24,5

76 to

<49

,152

49,1

52 to

<98

,304

98,3

04 to

<19

6,60

8

196,

608

to <

393,

216

393,

216

to <

786,

432

786,

432

to <

1,57

2,86

4

>=1,

572,

864

GROWN GAS-FIELD SIZE (BCFG)

VO

LU

ME

OF

GA

S (

BC

FG

)


1

10

100

1,000

1860 1880 1900 1920 1940 1960 1980 2000


GR

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)


1

10

100

1,000

0 5 10 15 20 25 30 35 40 45 50


GR

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)


0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. G

RO

WN

GA

S V

OL

UM

E (

BC

FG

)


0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

0 5 10 15 20 25 30 35 40 45 50


CU

M. G

RO

WN

GA

S V

OL

UM

E (

BC

FG

)


0

2

4

6

8

10

12

14

16

18

1860 1880 1900 1920 1940 1960 1980 2000


CU

M. G

AS

FIE

LD

S (

No

.)


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25 30 35 40 45 50


CU

M. G

AS

FIE

LD

S (

No

.)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

1860 1880 1900 1920 1940 1960 1980 2000


RE

SE

RV

OIR

DE

PT

H, G

AS

FIE

LD

S (

m)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

0 5 10 15 20 25 30 35 40 45 50


RE

SE

RV

OIR

DE

PT

H, G

AS

FIE

LD

S (

m)


0

10

20

30

40

50

60

70

80

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000


LIQ

UID

S/G

AS

, GA

S F

IEL

DS

(B

L/M

MC

FG

)

Romania Flysch Zone, Assessment Unit 40610201Volumes of Discovered Petroleum

[MMBO, million barrels of oil. BCFG, billion cubic feet of gas. MMBNGL, million barrels of natural gas liquids. Fields containing less than 1 MMBO in oilfields or 6 BCFG in gas fields were not considered in the assessment. Fields were classified as oil or gas by the USGS. Fields without reported discoverydates were not included. NA means not applicable and is shown for volumes where only one field is present. Calculated values may not be equal to the

sums of the component values because numbers have been independently rounded.]

Known (Discovered) Volumes Grown (Discovered) VolumesField Type Number Number

of Fields Oil (MMBO) Gas (BCFG) NGL (MMBNGL) of Fields Oil (MMBO) Gas (BCFG) NGL (MMBNGL)

Oil Fields 56 1,846 1,981 3 57 2,275 2,558 3Gas Fields 17 1 1,227 9 17 1 1,673 13

Fields <1 MMBOE 36 2 14 0 35 2 19 0

All Fields 109 1,849 3,222 11 109 2,278 4,250 16

Page 1

Romania Flysch Zone, Assessment Unit 40610201Discovery-History Sequence

[MMBO, million barrels of oil. BCFG, billion cubic feet of gas. Fields containing less than 1 MMBO in oil fields or 6 BCFG in gas fields werenot considered in the assessment. Fields were classified as oil or gas by the USGS. The first half or third shows year of first field discovery

as well as end of period. NA means not applicable and is shown where fewer than four fields are present.]

Discovery-History Sequence - Known (Discovered) VolumesFieldType Year Number of Total Mean Median

(End of Period) Fields Volume Size Size

Oil Fields Known Sizes (MMBO)First third 1860-1953 19 711 37 29Second third 1965 19 654 34 15Third third 1992 18 481 27 21

All Oil Fields 56 1,846 33 22Gas Fields Known Sizes (BCFG)

First third 1913-1963 6 560 93 51Second third 1977 6 454 76 33Third third 1985 5 213 43 30

All Gas Fields 17 1,227 72 36

Page 2

Romania Flysch Zone, Assessment Unit 40610201Discovery-History Sequence

[MMBO, million barrels of oil. BCFG, billion cubic feet of gas. Fields containing less than 1 MMBO in oil fields or 6 BCFG in gas fields werenot considered in the assessment. Fields were classified as oil or gas by the USGS. The first half or third shows year of first field discovery

as well as end of period. NA means not applicable and is shown where fewer than four fields are present.]

Discovery-History Sequence - Grown (Discovered) VolumesFieldType Year Number of Total Mean Median

(End of Period) Fields Volume Size Size

Oil Fields Grown Sizes (MMBO)First third 1860-1953 19 769 40 36Second third 1964 19 737 39 17Third third 1992 19 768 40 30

All Oil Fields 57 2,275 40 27Gas Fields Grown Sizes (BCFG)

First third 1913-1963 6 721 120 66Second third 1977 6 631 105 47Third third 1985 5 321 64 45

All Gas Fields 17 1,673 98 50

Page 3

romania flysch zone, assessment unit 40610201...romania flysch zone, assessment unit 40610201 0 5 10...

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