romania ploiesti zone, assessment unit 40610202 …...romania ploiesti zone, assessment unit...

Romania Ploiesti Zone, Assessment Unit 40610202

0

1

2

3

4

5

6

7

1820 1840 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

1835

1842

1849

1856

1863

1870

1877

1884

1891

1898

1905

1912

1919

1926

1933

1940

1947

1954

1961

1968

1975

1982

1989


NE

W-F

IEL

D W

ILD

CA

T W

EL

LS

(N

o.)


1

10

100

1,000

0 2 4 6 8 10

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

1

2

3

4

5

6

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

800

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 <

2,04

8

2,04

8 to <

4,09

6

4,09

6 to <

8,19

2

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

1820 1840 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 1 2 3 4 5 6

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

1820 1840 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 1 2 3 4 5 6


CU

M. K

NO

WN

OIL

VO

LU

ME

(M

MB

O)


0

5

10

15

20

25

30

1820 1840 1860 1880 1900 1920 1940 1960 1980 2000


CU

M. O

IL F

IEL

DS

(N

o.)


0

5

10

15

20

25

30

0 1 2 3 4 5 6


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

1820 1840 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 1 2 3 4 5 6


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

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

5

10

15

20

25

30

35

40

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

GAS-FIELD RANK BY SIZE

KN

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)

First half of fields discovered

Second half of fields discovered


0

1

2

3

4

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 <

3,07

2

3,07

2 to <

6,14

4

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.)

Second halfof fieldsdiscovered

First half offieldsdiscovered


0

50

100

150

200

250

300

350

400

450

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 <

3,07

2

3,07

2 to <

6,14

4

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

1820 1840 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 1 2 3 4 5 6


KN

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)


0

200

400

600

800

1,000

1,200

1820 1840 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

0 1 2 3 4 5 6


CU

M. K

NO

WN

GA

S V

OL

UM

E (

BC

FG

)


0

1

2

3

4

5

6

1820 1840 1860 1880 1900 1920 1940 1960 1980 2000


CU

M. G

AS

FIE

LD

S (

No

.)


0

1

2

3

4

5

6

0 1 2 3 4 5 6


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

1820 1840 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 1 2 3 4 5 6


RE

SE

RV

OIR

DE

PT

H, G

AS

FIE

LD

S (

m)


0

1

2

3

4

5

6

7

1820 1840 1860 1880 1900 1920 1940 1960 1980 2000


CU

M. N

EW

-FIE

LD

WIL

DC

AT

WE

LL

S (

No

.)


0

1

2

1835

1841

1847

1853

1859

1865

1871

1877

1883

1889

1895

1901

1907

1913

1919

1925

1931

1937

1943

1949

1955

1961

1967

1973

1979

1985

1991


NE

W-F

IEL

D W

ILD

CA

T W

EL

LS

(N

o.)


1

10

100

1,000

0 2 4 6 8 10

OIL-FIELD RANK BY SIZE

GR

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

1

2

3

4

5

6

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

.)

Third third offieldsdiscovered

Second thirdof fieldsdiscovered

First third offieldsdiscovered


0

100

200

300

400

500

600

700

800

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

1820 1840 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 1 2 3 4 5 6


GR

OW

N O

IL-F

IEL

D S

IZE

(M

MB

O)


0

500

1,000

1,500

2,000

2,500

1820 1840 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 1 2 3 4 5 6


CU

M. G

RO

WN

OIL

VO

LU

ME

(M

MB

O)


0

5

10

15

20

25

30

1820 1840 1860 1880 1900 1920 1940 1960 1980 2000


CU

M. O

IL F

IEL

DS

(N

o.)


0

5

10

15

20

25

30

0 1 2 3 4 5 6


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

1820 1840 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 1 2 3 4 5 6


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

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

5

10

15

20

25

30

35

40

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

GAS-FIELD RANK BY SIZE

GR

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)

First half of fields discovered

Second half of fields discovered


0

1

2

3

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.)

Second halfof fieldsdiscovered

First half offieldsdiscovered


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

1820 1840 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 1 2 3 4 5 6


GR

OW

N G

AS

-FIE

LD

SIZ

E (

BC

FG

)


0

200

400

600

800

1,000

1,200

1820 1840 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

0 1 2 3 4 5 6


CU

M. G

RO

WN

GA

S V

OL

UM

E (

BC

FG

)


0

1

2

3

4

5

6

1820 1840 1860 1880 1900 1920 1940 1960 1980 2000


CU

M. G

AS

FIE

LD

S (

No

.)


0

1

2

3

4

5

6

0 1 2 3 4 5 6


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

1820 1840 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 1 2 3 4 5 6


RE

SE

RV

OIR

DE

PT

H, G

AS

FIE

LD

S (

m)

Romania Ploiesti Zone, Assessment Unit 40610202Volumes 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 26 2,165 1,003 0 26 2,282 1,124 0Gas Fields 5 0 823 0 5 0 1,066 0

Fields <1 MMBOE 7 2 0 0 7 2 0 0

All Fields 38 2,166 1,826 0 38 2,284 2,190 0

Page 1

Romania Ploiesti Zone, Assessment Unit 40610202Discovery-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 1835-1905 9 1,278 142 22Second third 1934 9 653 73 30Third third 1985 8 234 29 12

All Oil Fields 26 2,165 83 22Gas Fields Known Sizes (BCFG)

First half 1937-1955 3 359 120 120Second half 1969 2 464 232 232

All Gas Fields 5 823 165 120

Page 2

Romania Ploiesti Zone, Assessment Unit 40610202Discovery-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 1835-1905 9 1,278 142 22Second third 1934 9 720 80 33Third third 1985 8 284 36 15

All Oil Fields 26 2,282 88 22Gas Fields Grown Sizes (BCFG)

First half 1937-1955 3 434 145 144Second half 1969 2 632 316 316

All Gas Fields 5 1,066 213 144

Page 3

romania ploiesti zone, assessment unit 40610202 …...romania ploiesti zone, assessment unit...

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