Reservoir Surveillance w Ofm - Fall 2011

PRACTICAL RESERVOIR PERFORMANCE ANALYSIS & REVIEW USING OFM Joe Sinner Legacy Reserves Operating, LP 2011 Wyoming IOR/EOR Conference Jackson, WY September 12-13, 2011

WHAT IS OFM?? • Oil Field Manager

• Licensed software from Schlumberger • Primary functions: ‒ Reservoir surveillance

‒ Production surveillance ‒ Production forecasting

WHAT IS OFM?? • Database Interface (MS Access)

• Additional functions: ‒ Log displays & cross sections ‒ Wellbore diagrams

RESERVOIR SURVEILLANCE • Identify aquifer influx mechanism/direction

• Identify dominant fluid flow direction/ well-to-well communication

PRODUCTION/INJECTION SURVEILLANCE • Production plots • Hall plots

AQUIFER INFLUX MECHANISM/DIRECTION Example 1 Fourbear

AQUIFER INFLUX MECHANISM/DIRECTION FB 63

Date:1/1/1958 FB 34 FB 81 FB 36

FB 31

Example 1 Fourbear

Fourbear Structure Unit

FB 67FB 25 FB 84

FB 69

FB 66

FB 35

FB 18

FB 28

FB 77

FB 53 FB 30

FB 64 FB 12 FB 73 FB 15

FB 59

FB 8 FB 14

FB 32

FB 74

FB 9

FB 7

FB 58 FB 72 FB 3 FB 10

FB 19

FB 61

FB 16

FB 56

FB 17 FB 6

FB 85

FB 65 FB 75 FB 51

FB 27

FB 37

FB 11

FB 22 FB 2 FB 71

FB 62 FB 24 FB 20 FB 23

FB 21 FB 47

FB 38

FB 44FB 13

FB 29 FB 70 FB 57

FB 42

FB 41

FB 52

FB 26 FB 86 FB 43

FB 48FB 39 FB 5

FB 82

Oil Cut ( % ) Water Cut ( % )

FB 45

AQUIFER INFLUX MECHANISM/DIRECTION FB 63

Date:1/1/1960 FB 34 FB 81 FB 36

FB 31

Example 1 Fourbear

Fourbear Structure Unit

FB 67FB 25 FB 84

FB 69

FB 66

FB 35

FB 18

FB 28

FB 77

FB 53 FB 30

FB 64 FB 12 FB 73 FB 15

FB 59

FB 8 FB 14

FB 32

FB 74

FB 9

FB 7

FB 58 FB 72 FB 3 FB 10

FB 19

FB 61

FB 16

FB 56

FB 17 FB 6

FB 85

FB 65 FB 75 FB 51

FB 27

FB 37

FB 11

FB 22 FB 2 FB 71

FB 62 FB 24 FB 20 FB 23

FB 21 FB 47

FB 38

FB 44FB 13

FB 29 FB 70 FB 57

FB 42

FB 41

FB 52

FB 26 FB 86 FB 43

FB 48FB 39 FB 5

FB 82

Oil Cut ( % ) Water Cut ( % )

FB 45

AQUIFER INFLUX MECHANISM/DIRECTION FB 63

Date:1/1/1962 FB 34 FB 81 FB 36

FB 31

Example 1 Fourbear

Fourbear Structure Unit

FB 67FB 25 FB 84

FB 69

FB 66

FB 35

FB 18

FB 28

FB 77

FB 53 FB 30

FB 64 FB 12 FB 73 FB 15

FB 59

FB 8 FB 14

FB 32

FB 74

FB 9

FB 7

FB 58 FB 72 FB 3 FB 10

FB 19

FB 61

FB 16

FB 56

FB 17 FB 6

FB 85

FB 65 FB 75 FB 51

FB 27

FB 37

FB 11

FB 22 FB 2 FB 71

FB 62 FB 24 FB 20 FB 23

FB 21 FB 47

FB 38

FB 44FB 13

FB 29 FB 70 FB 57

FB 42

FB 41

FB 52

FB 26 FB 86 FB 43

FB 48FB 39 FB 5

FB 82

Oil Cut ( % ) Water Cut ( % )

FB 45

AQUIFER INFLUX MECHANISM/DIRECTION FB 63

Date:1/1/1967 FB 34 FB 81 FB 36

FB 31

Example 1 Fourbear

Fourbear Structure Unit

FB 67FB 25 FB 84

FB 69

FB 66

FB 35

FB 18

FB 28

FB 77

FB 53 FB 30

FB 64 FB 12 FB 73 FB 15

FB 59

FB 8 FB 14

FB 32

FB 74

FB 9

FB 7

FB 58 FB 72 FB 3 FB 10

FB 19

FB 61

FB 16

FB 56

FB 17 FB 6

FB 85

FB 65 FB 75 FB 51

FB 27

FB 37

FB 11

FB 22 FB 2 FB 71

FB 62 FB 24 FB 20 FB 23

FB 21 FB 47

FB 38

FB 44FB 13

FB 29 FB 70 FB 57

FB 42

FB 41

FB 52

FB 26 FB 86 FB 43

FB 48FB 39 FB 5

FB 82

Oil Cut ( % ) Water Cut ( % )

FB 45

AQUIFER INFLUX MECHANISM/DIRECTION Example 2 Quealy Dome (Dakota)

AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1942

Example 2 Quealy Dome (Dakota)

Holst 12

Holst 11

Holst 09

Holst 13

Holst 08

Holst 10

Holst 07 Holst 06 Holst 02

Wilson 04

Holst 15 Holst 05

Wilson 03

Holst 01

Wilson 01

Holst 04

Wilson 02

Holst Woolf 1

Oil Cut ( % ) Water Cut ( % )

AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1944

Example 2 Quealy Dome (Dakota)

Holst 12

Holst 11

Holst 09

Holst 13

Holst 08

Holst 10

Holst 07 Holst 06 Holst 02

Wilson 04

Holst 15 Holst 05

Wilson 03

Holst 01

Wilson 01

Holst 04

Wilson 02

Holst Woolf 1

Oil Cut ( % ) Water Cut ( % )

AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1948

Example 2 Quealy Dome (Dakota)

Holst 12

Holst 11

Holst 09

Holst 13

Holst 08

Holst 10

Holst 07 Holst 06 Holst 02

Wilson 04

Holst 15 Holst 05

Wilson 03

Holst 01

Wilson 01

Holst 04

Wilson 02

Holst Woolf 1

Oil Cut ( % ) Water Cut ( % )

AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1953

Example 2 Quealy Dome (Dakota)

Holst 12

Holst 11

Holst 09

Holst 13

Holst 08

Holst 10

Holst 07 Holst 06 Holst 02

Wilson 04

Holst 15 Holst 05

Wilson 03

Holst 01

Wilson 01

Holst 04

Wilson 02

Holst Woolf 1

Oil Cut ( % ) Water Cut ( % )

AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1969

Example 2 Quealy Dome (Dakota)

Holst 12

Holst 11

Holst 09

Holst 13

Holst 08

Holst 10

Holst 07 Holst 06 Holst 02

Wilson 04

Holst 15 Holst 05

Wilson 03

Holst 01

Wilson 01

Holst 04

Wilson 02

Holst Woolf 1

Oil Cut ( % ) Water Cut ( % )

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood Bubble Map of Water Rates (Inj & Prod)

Just Prior to Unitization Date:10/1/1968 KC 12 KC 9 KC 24 KC 26

KC 25

KC 1 6 0

Kirby Creek Unit KC 17 KC 16

KC 21

KC 11 KC 8

KC 20

KC 27

KC 14

KC 2 0 0

KC 13 KC 7

KC 15 KC 18 KC 4 1 0

KC 28 Water Rate (Cal Day ) ( bbl/d ) W. Inj Rate (Cal Day ) ( bbl/d )

KC 10

KC 22

KC 6

KC 29 KC 19

KC 3 0 0

KC 5 122 0 KC 23

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood

4 Yrs After Unitization Date:10/1/1972

KC 12 KC 9 KC 24

Bubble Map of Water Rates (Inj & Prod)

KC 26 KC 1 9 0

Kirby Creek Unit KC 17 KC 16

KC 25 KC 21

KC 11 KC 8

KC 20

KC 27

KC 14

KC 2 0 0

KC 13 KC 7

KC 15 KC 18 KC 4 15 0

KC 28

KC 10 Water Rate (Cal Day ) ( bbl/d ) W. Inj Rate (Cal Day ) ( bbl/d )

KC 22

KC 6

KC 29 KC 19

KC 3 0 726

KC 5 168 0 KC 23

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood

13 Yrs After Unitization Date:12/1/1981

KC 12 KC 9 KC 24

Bubble Map of Water Rates (Inj & Prod)

KC 26 KC 1 76 0

Kirby Creek Unit KC 17 KC 16

KC 25 KC 21

KC 11 KC 8

KC 20

KC 27

KC 14

KC 2 5 0

KC 13 KC 7

KC 15 KC 18 KC 4 26 0

KC 28

KC 10 Water Rate (Cal Day ) ( bbl/d ) W. Inj Rate (Cal Day ) ( bbl/d )

KC 22

KC 6

KC 29 KC 19

KC 3 0 669

KC 5 246 0 KC 23

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood

24 Yrs After Unitization Date:10/1/1992

KC 12 KC 9 16 0

KC 24

Bubble Map of Water Rates (Inj & Prod)

KC 26 KC 1 0

Kirby Creek Unit KC 17 KC 16

KC 25 KC 21

KC 13 111 0

KC 8 17 0

KC 11 24 0

KC 20

KC 27 KC 18

KC 7 6 0

KC 15

KC 4 21 0

KC 28

Water Rate (Cal Day ) ( bbl/d ) W. Inj Rate (Cal Day ) ( bbl/d )

KC 14

KC 2 0 332

KC 10 0 524

KC 22

KC 6

KC 29 KC 19

KC 3 0 0

KC 5 0 KC 23

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood

27+ Yrs After Unitization Date:3/1/1996

KC 12 KC 9 58 0

KC 24

Bubble Map of Water Rates (Inj & Prod)

KC 26 KC 1 0 270

Kirby Creek Unit KC 17 2 0

KC 25 KC 21

KC 13 132 0

KC 16

KC 8 0 135

KC 11 21 0

KC 20

KC 27 KC 18 126 0

KC 7 53 0

KC 15

KC 4 0 229

KC 28

Water Rate (Cal Day ) ( bbl/d ) W. Inj Rate (Cal Day ) ( bbl/d )

KC 14

KC 2 0 248

KC 10 0 227

KC 22

KC 6

KC 29 KC 19 91 0

KC 3 0 507

KC 5 34 0 KC 23

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood Bubble Map of Water Rates (Inj & Prod)

40 Yrs After Unitization Date:10/1/2008

KC 12 KC 9 77 0

KC 24 0 0

KC 26 0 89

KC 1 0 184 KC 25 188 0

Kirby Creek Unit KC 17 37 0

KC 21 125 0 KC 13 0 284

KC 8 0 119

KC 27 587 0

KC 16 34 0

KC 20 33 0

KC 18 0 662

KC 11 83 0

KC 7 0 394

KC 15 5 KC 4 65 0

KC 28 36 0 Water Rate (Cal Day ) ( bbl/d ) W. Inj Rate (Cal Day ) ( bbl/d )

KC 14

KC 2 0 0

KC 10 0 57

KC 29 0 679

KC 22 0 0

KC 19 613 0

KC 6

KC 3 0 107

KC 5 30 0 KC 23 62 0

DOMINANT FLUID FLOW DIRECTION Example 3 Kirby Creek Waterflood Bubble Map of Water Cum’s (Inj & Prod)

Cumulatives To Date Date:6/1/2011

KC 24 181 0

KC 9 322 0 KC 26 1 425

KC 1 180 1342 KC 25 663 0

Kirby Creek Unit KC 17 129 0

KC 21 464 0 KC 13 829 587

KC 12 0 0

KC 8 109 1263

KC 27 2028 0

KC 16 278 0

KC 20 70 0

KC 18 192 1183

KC 11 204 615 KC 14 0 150

KC 2 61 1356

KC 7 517 772

KC 15 30 0 KC 4 666 1542

KC 28 39 0 KC 10 0 1734

KC 29 113 1566

KC 22 0 98

KC 19 1481 0

KC 6 0 0

KC 3 0 7006

KC 5 1565 0 KC 23 444 0

DOMINANT FLUID FLOW DIRECTION 0/

Example 4 N2 Flood in OK

10 /6 0

NIU 06-1

6/ 16

01-1-G

6/ 80

2/ 18

02-1-G

22/47

1 4/ 18

22

21

07-1

24/37

15/25

16/37 10/17

23

15-2

24

14-2

20

19

13-3

8/32

25/30

8/ 50

05-1

04-1

30/40

22

23

27

26

34

35

12-1-29 42/47

13-2-G

41/56

14-1-G

5 0/ 70

08-1

10-1 11-1-G

50/60

15-1-G

16-1-G 4/ 75

8/ 28

21

09-1 7/14

33/39

8/ 50

9/21

4/14

7 /2 3

34/40

13-1-G 44/65

52/76

24-2 19-2

1 6/ 30

0/ 0

20-2

21-1

36/52

30/37

18/30

26 40-1 43/64

0/ 14

46/50

36-2 36-2

75/78

68/80

34-1

35-1-D

32 /3 8

5/ 14

2/14

69/82

4/10

28

29

30

18/24

37-2 38-2

29-1

0/6

25

39-2

28-1

23-2-G

54/64

51/68

44 /7 0

27

7/14

15/20

24-1-G

21-2-G

20-1-G

19-1-G 18-1 16/70

26-1-G

11/22

22/52

22-1 39 /4 3

28

27-1

25-1

60/63

23-1

32 /6 4

31-1-G

1 0/ 22

38-1-G

70/80

70/89

67/84

36-1

35-2

58/68

42/49

33-1-D

34-2

6/12

5/13

10/24

0/8

32-1

37-3-GH 45-1-G

44-1

42-1 43-1

34/73

84/86

NIU

46-1-G

74/82

2/ 10

66/74

72/88

47-1-G 44-2-G

56/61

78/89

33

34

78/87

56/68

59-1-G

60-1-G

56/69

57/59

52-1

51-1 9/17

4/11

33 56-1-G

57-1-G

58-1-G

70/84

80/84

50-1 2 3/ 30

26/34

32

31

61-1

11/42

49-1-G

48-1

46-2 70/76

80/88

36

66/78

62-1-G

46-3

45-2

44-3

35

30-1

0/8

37-1-G 39-1-G

36/44

36/58

54-1-G

55-2-G

53-1

26/36

12/18

2/8

NIU 59-2

63-1-G

63-2H

64-G1 64-G2

67

/

/

48

/ 35

66/75

8/14

52/69

28

/

/

6

1

/

65-2 9/11

20/36

67-2

45/52

74-G2

5

NIU

68-1-G

65-2ST

2

/ 12

18/40

60/70

6 /1 3

3

NIU

67-1G

66-1-G 66-G2

64-3H

60

29

4

54-2

25/34

65-1-G

62/82 74/80

28/38

55-1

42/46

66/71

81/92

NIU

56-2-G

57-2

58-2

49/65

0/6

2

3

4

61/67

45/55

75-1 3/16

74-1

73-1

72-1

53/64

68/88

71-2 1/ 3

38/54

72-2

/ 48

/

/ 58

69

14/20

9/

10

82/94

71-1-G

/

70-1

72/80

69-1

54/62

13/16

/ 59 76-1

47

3/8

40/

65/

20 /2 6

80-2

7

11

10

9

8 81-1

50/

16 /2 4

0 /7

6/14

7 5/

43 /

80 /

47 /

73 /

69/

15

39/50

12

4 7/ 0/

5 5/

42/57

1 6/

77 /

15 /

16

45/62

79-1-G 54/62

57/

11

10

9

4/15

7 3/

/

80-1-G

78-1-G

77-1

14 66/

91/

13

8 0/

18

17

16

15

14

Date:5/15/1989

DOMINANT FLUID FLOW DIRECTION Example 4 N2 Flood in OK

22

23

24

01G01 02G01 15-02

14-02

19 06-01

05-01

04-01

21-01

23-01 22-01

21G02

20G01

24-02

39-02 39-03

38-02 38-03

39G01 42-01 43-3 34

38G01

43-01 35

43G02 62G01

27

27-01

30

29

28-01

37-02

36-02

37-04

37G01 37G3H 44-01 44-4 44G02 44-03 61-01

36-01

35D01

34-02

45-03 45G01 46G01

47G01 31 46-03

60G01

46-02

59G01 59-02

2

1

31G01 30-01

32-01

48-2 32

48-01

47-02 58G01

58-02 63-2H 63G01

3

33D01

47-03

36

45-02

29-01

34-01

35-02

60-2

4

28

08-01

25-01 26G01 24G01

25

10-01

11G01

23G02 40-01

Bubble Map of Gas Rates (Inj & Prod)

14G01 13G01

26

19G01

18-01

15G01

20-02

27

22

12G01 13G02

19-02

21

09-01

13-03

16-02 16G01

20

07-01

57G01

58-3

57-02

64G01 64G02 6

50-01 56G01

56G02

65G01

74-02

55G02

52-01 54G01 53-01

54-02

66-4 5

65-2ST

34

51-01

55-01

66G01 66G02

64-3H

75-01

33

49G01

67G01

4

3

68G01

66-03

67-02

73G01

72-01

71-02

74-01

72-02 72-03

71G01

70-01 69-01

76-01 9

10

11

12

7

77-01

8

78G01 9

Gas Rate (CalDay ) ( Mcf /d )

80G01 79G01 10

80-02

Gas Inj Rate (CalDay ) ( Mcf /d ) 81-01

Date:6/15/1993

DOMINANT FLUID FLOW DIRECTION Example 4 N2 Flood in OK

22

23

24

01G01 02G01 15-02

14-02

19 06-01

05-01

04-01

15G01

20-02 19G01

18-01

39-02 39-03

Bubble Map of Gas Rates (Inj & Prod)

38-02 38-03

39G01 42-01 43-3 34

38G01

43-01 35

43G02 62G01

29

28-01

37-02

36-02

37-04

37G01 37G3H 44-01 44-4 44G02 44-03 61-01

36-01

35D01

34-02

45-03 45G01 46G01

47G01 31 46-03

60G01

46-02

59G01 59-02

2

1

31G01 30-01

32-01

48-2 32

48-01

47-02 58G01

58-02 63-2H 63G01

3

33D01

47-03

36

45-02

29-01

34-01

35-02

60-2

4

27

27-01

30

23G02 40-01

28

08-01

25-01 26G01 24G01

25

21G02

20G01

24-02

23-01 22-01

26

10-01

11G01

14G01 13G01

21-01

27

22

12G01 13G02

19-02

21

09-01

13-03

16-02 16G01

20

07-01

57G01

58-3

57-02

64G01 64G02 6

50-01 56G01

56G02

65G01

74-02

55G02

52-01 54G01 53-01

54-02

66-4 5

65-2ST

34

51-01

55-01

66G01 66G02

64-3H

75-01

33

49G01

67G01

4

3

68G01

66-03

67-02

73G01

72-01

71-02

74-01

72-02 72-03

71G01

70-01 69-01

76-01 9

10

11

12

7

77-01

8

78G01 9

Gas Rate (CalDay ) ( Mcf /d )

80G01 79G01 10

80-02

Gas Inj Rate (CalDay ) ( Mcf /d ) 81-01

Date:7/15/2000

DOMINANT FLUID FLOW DIRECTION Example 4 N2 Flood in OK

22

23

24

01G01 02G01 15-02

14-02

19 06-01

05-01

04-01

15G01

20-02 19G01

18-01

39-02 39-03

Bubble Map of N2 Cum’s (Inj & Prod)

38-02 38-03

39G01 42-01 43-3 34

38G01

43-01 35

43G02 62G01

29

28-01

37-02

36-02

37-04

37G01 37G3H 44-01 44-4 44G02 44-03 61-01

36-01

35D01

34-02

45-03 45G01 46G01

47G01 31 46-03

60G01

46-02

59G01 59-02

2

1

31G01 30-01

32-01

48-2 32

48-01

47-02 58G01

58-02 63-2H 63G01

3

33D01

47-03

36

45-02

29-01

34-01

35-02

60-2

4

27

27-01

30

23G02 40-01

28

08-01

25-01 26G01 24G01

25

21G02

20G01

24-02

23-01 22-01

26

10-01

11G01

14G01 13G01

21-01

27

22

12G01 13G02

19-02

21

09-01

13-03

16-02 16G01

20

07-01

57G01

58-3

57-02

64G01 64G02 6

50-01 56G01

56G02

65G01

74-02

55G02

54G01 53-01 54-02

67G01

4

3

68G01

66-03

67-02

73G01

72-01

71-02

74-01

Cum N2 Prod ( MMcf )

52-01

66-4 5

65-2ST

34

51-01

55-01

66G01 66G02

64-3H

75-01

33

49G01

72-02 72-03

Cum Gas Inj ( MMcf )

71G01

70-01 69-01

76-01 9

10

11

12

7

77-01

8

78G01 9

80G01 79G01 10

80-02 81-01

PRODUCTION PLOTS EAST BINGER UNIT #37G3H

Oil Rate (CalDay) ( bbl/d )

Binger Operations, LLC

Gas Rate (CalDay) ( Mcf/d ) 10000

GOR ( Mcf/bbl ) Gas Inj Rate (CalDay) ( Mcf/d )

5000

1000

100

5

Put on injection

10

Lower pkr to prep for inj

Perf 96' of OH; Frac OH

Change out tubing & pkr

50

Pressure test tubing - possible small leak

500

1 1998

99

2000

01

02

03

04

05

06

07

08

09

10

11

Axis 1 Cum Oil Prod ( Mbbl )

1000

100

Cum Gas Prod ( MMcf ) 800

Cum N2 Prod ( MMcf )

80

N2 Cut

60

Axis 2 600

N2 Cut ( % ) 400

40

200

20

0

0 1998

99

2000

3000 Cum Gas Inj ( MMcf )

2400

01

02

03

04

05

06

07

08

09

10

11

PRODUCTION PLOTS EAST BINGER UNIT #36-01

Oil Rate (CalDay) ( bbl/d )

Binger Operations, LLC

Gas Rate (CalDay) ( Mcf/d ) 10000

GOR ( Mcf/bbl )

Attempt to cut off tail pipe

Replace 2-7/8 Tbg with 2-3/8

5

Restore Treatment Paraffin Treatment

10

Squeeze Casing Leak

50

37-3H CTI

100

Tag - junk in N-nipple

500

37-3H online

1000

Tag - metal junk in N-nipple

Run Bailer Hot Oil; Bail sand, scale, salt, metal; Fm Cond Treatment

5000

1 1998

99

2000

01

02

03

04

05

06

07

08

09

10

11

Axis 1 Cum Oil Prod ( Mbbl )

3750

100

Cum Gas Prod ( MMcf ) 3000

Cum N2 Prod ( MMcf )

80

N2 Cut

60

Axis 2 2250

N2 Cut ( % ) 1500

40

750

20

0

0 1998

99

2000

3000 Cum Gas Inj ( MMcf )

2400

01

02

03

04

05

06

07

08

09

10

11

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 4 PH Reserv oir Name: PHOSPHORIA Spud: 02/24/1948 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

10

CTP

Upsize Rod Pump

5

1 2000

10000 5000

01

02

03

Cumulativ e Oil Produced : 228.68 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 666.49 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 12.82 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 5 (B-031282) Reserv oir Name: PHOSPHORIA Spud: 07/20/1940 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

Missing water production data 10

Clean out & Acidize

Acidize

Acidize

5

1 2000

10000 5000

01

02

03

Cumulativ e Oil Produced : 321.01 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 1565.21 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 25.82 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK 9 (UNIT B-041616) Reserv oir Name: PHOSPHORIA Spud: 06/15/1984 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

Missing water production data

5

Acid Job w/ Cleanout

10

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 106.89 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 321.66 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 34.84 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK 11 (64-12195) Reserv oir Name: PHOSPHORIA Spud: 03/09/1984 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

10

Acidize & Replace with IC tubing RTP

Missing water production data

Tbg Leaks

CTI

Acidize

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 38.22 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 203.72 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 11.18 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 15 Reserv oir Name: PHOSPHORIA Spud: 10/21/1997 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

100

50

Missing water production data

10

Acidize

Acidize & Frac

5

1 2000

100

01

02

03

Cumulativ e Oil Produced : 72.10 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 29.54 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 19.88 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 16 Reserv oir Name: PHOSPHORIA Spud: 08/14/1997 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

Missing water production data

50

10

Acidize & Frac

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 42.95 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 278.14 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 13.81 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 17 Reserv oir Name: PHOSPHORIA Spud: 12/28/1993 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

100

50

Missing water production data 10

Acidize & Frac

Acidize

Acidize

Acidize

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 55.24 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 128.94 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 21.49 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 19 Reserv oir Name: PHOSPHORIA Spud: 10/13/1994 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

5

Re-sized ESP & RTP

10

SI

Convert to ESP, then back to Rods

50

1 2000

10000 5000

01

02

03

Cumulativ e Oil Produced : 57.08 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 1480.61 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 22.56 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 20 Reserv oir Name: PHOSPHORIA Spud: 02/08/1998 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

100

50

10

Perf and Frac

Acid Frac Well

5

1 2000

100

01

02

03

Cumulativ e Oil Produced : 50.40 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 69.55 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 20.53 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 21 Reserv oir Name: PHOSPHORIA Spud: 11/25/1997 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

10

Frac

Acidize

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 61.07 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 464.30 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 16.18 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 23 Reserv oir Name: PHOSPHORIA Spud: 02/18/1998 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

10

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 31.00 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 444.47 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 9.62 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 24 Reserv oir Name: PHOSPHORIA Spud: 12/26/1997 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

100

50

Missing water production data 10

Acidize

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 28.30 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 181.37 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 11.94 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 25 Reserv oir Name: PHOSPHORIA Spud: 01/09/1998 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

1000

500

100

50

10

Acidize

Acidize

Upsized pump

5

1 2000

1000 500

01

02

03

Cumulativ e Oil Produced : 60.36 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 662.98 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 24.33 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: KIRBY CREEK KIRBY CREEK UNIT 28 Reserv oir Name: PHOSPHORIA Spud: 01/22/1998 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % ) Oil Cut ( % )

100

50

Missing water production data 10

Acid-Frac, then Sand Frac

5

1 2000

100

01

02

03

Cumulativ e Oil Produced : 21.51 Mbbl Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

04

05

06

07

Cumulativ e Water Produced : 39.46 Mbbl

08

09

10

11

Cumulativ e Gas Produced : 7.04 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: MURPHY DOME SHAD 6 Reserv oir Name: TENSLEEP Spud: 05/08/1952 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % )

10000

Oil Cut ( % )

5000

1000 500

100 50

Plug Back

5

Acidize

Reperf Tensleep

10

1 1958

10000

60

62

64

66

68

70

72

Cumulativ e Oil Produced : 1379.59 Mbbl

Cumulativ e Oil Produced ( Mbbl )

5000 Cumulativ e Water Produced ( Mbbl )

74

76

78

80

82

84

86

88

90

92

Cumulativ e Water Produced : 4043.27 Mbbl

94

96

98 2000 02

04

06

08

10

Cumulativ e Gas Produced : 0.00 MMcf

PRODUCTION PLOTS Legacy Reserv es Operating LP Field Name: MURPHY DOME SHAD 10 Reserv oir Name: TENSLEEP Spud: 08/21/1954 Plug: *

Oil Rate (Cal Day ) ( bbl/d ) Water Rate (Cal Day ) ( bbl/d ) Water Cut ( % )

10000

Oil Cut ( % )

5000

1000 500

100 50

Polymer Treatment

10 5

1 1958

5

10

60

62

64

66

68

70

72

Cumulativ e Oil Produced : 540.38 Mbbl

Cumulativ e Oil Produced ( Mbbl ) Cumulativ e Water Produced ( Mbbl )

74

76

78

80

82

84

86

88

90

92

94

Cumulativ e Water Produced : 35193.86 Mbbl

96

98 2000 02

04

06

08

10

Cumulativ e Gas Produced : 0.00 MMcf

HALL PLOTS – MONITOR INJECTIVITY EDSEL UNIT 7

Legacy Reserv es Operating LP.

Cumulativ e Oil Produced : 11.46 Mbbl

Field Name: Edsel

Cumulativ e Gas Produced : 0.71 MMcf Reserv oir Name: MINNELUSA 'B'

Spud: 05/30/1982

Cumulativ e Water Produced : 21.24 Mbbl Cumulativ e Water Injected : 21020.12 Mbbl

Hall Plot

Plug: *

12500000 Cumulativ e Pressure ( PSI*Day s ) Edsel U. 7

10000000

7500000

5000000

2500000

0 0

5000

10000

15000

Cumulativ e Water Injected ( Mbbl )

20000

25000

HALL PLOTS – MONITOR INJECTIVITY LILY UNIT 3

Legacy Reserv es Operating LP.

Cumulativ e Oil Produced : 536.84 Mbbl

Field Name: Lily

Cumulativ e Gas Produced : 0.00 MMcf Reserv oir Name: MINNELUSA 'A'

Spud: 10/31/1984

Cumulativ e Water Produced : 1788.92 Mbbl Cumulativ e Water Injected : 2278.49 Mbbl

Hall Plot

Plug: *

6000000 Cumulativ e Pressure ( PSI*Day s ) Lily U. 3

4500000

3000000

1500000

0 0

500

1000

1500

Cumulativ e Water Injected ( Mbbl )

2000

2500

ADDITIONAL TOOLS IN THE BOX • Pattern analysis • Production Forecasting

• Nodal analysis • Material Balance