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  • 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

  • PRODUCTION/INJECTION SURVEILLANCE

    Production plots

    Hall plots

    RESERVOIR SURVEILLANCE

    Identify aquifer influx mechanism/direction

    Identify dominant fluid flow direction/

    well-to-well communication

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 1 Fourbear

  • AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1958

    Fourbear Structure Unit

    FB 2

    FB 3

    FB 5

    FB 6

    FB 7FB 8

    FB 9

    FB 10

    FB 11

    FB 12

    FB 13

    FB 14

    FB 15

    FB 16

    FB 17

    FB 18

    FB 19

    FB 20

    FB 21

    FB 22

    FB 23

    FB 24

    FB 25

    FB 26

    FB 27

    FB 28

    FB 29

    FB 30

    FB 31

    FB 32

    FB 34

    FB 35

    FB 36

    FB 37

    FB 38

    FB 39

    FB 42

    FB 43

    FB 44

    FB 45

    FB 47

    FB 48

    FB 51

    FB 52

    FB 53

    FB 56

    FB 57

    FB 58

    FB 59

    FB 61

    FB 62

    FB 63

    FB 64

    FB 65

    FB 66

    FB 67

    FB 69

    FB 70

    FB 72

    FB 73

    FB 75

    FB 77

    FB 81

    FB 82

    FB 84

    FB 86

    FB 85

    FB 41

    FB 71

    FB 74

    Oil Cut ( % )

    Water Cut ( % )

    Example 1 Fourbear

  • AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1960

    Fourbear Structure Unit

    FB 2

    FB 3

    FB 5

    FB 6

    FB 7FB 8

    FB 9

    FB 10

    FB 11

    FB 12

    FB 13

    FB 14

    FB 15

    FB 16

    FB 17

    FB 18

    FB 19

    FB 20

    FB 21

    FB 22

    FB 23

    FB 24

    FB 25

    FB 26

    FB 27

    FB 28

    FB 29

    FB 30

    FB 31

    FB 32

    FB 34

    FB 35

    FB 36

    FB 37

    FB 38

    FB 39

    FB 42

    FB 43

    FB 44

    FB 45

    FB 47

    FB 48

    FB 51

    FB 52

    FB 53

    FB 56

    FB 57

    FB 58

    FB 59

    FB 61

    FB 62

    FB 63

    FB 64

    FB 65

    FB 66

    FB 67

    FB 69

    FB 70

    FB 72

    FB 73

    FB 75

    FB 77

    FB 81

    FB 82

    FB 84

    FB 86

    FB 85

    FB 41

    FB 71

    FB 74

    Oil Cut ( % )

    Water Cut ( % )

    Example 1 Fourbear

  • AQUIFER INFLUX MECHANISM/DIRECTION Date:1/1/1962

    Fourbear Structure Unit

    FB 2

    FB 3

    FB 5

    FB 6

    FB 7FB 8

    FB 9

    FB 10

    FB 11

    FB 12

    FB 13

    FB 14

    FB 15

    FB 16

    FB 17

    FB 18

    FB 19

    FB 20

    FB 21

    FB 22

    FB 23

    FB 24

    FB 25

    FB 26

    FB 27

    FB 28

    FB 29

    FB 30

    FB 31

    FB 32

    FB 34

    FB 35

    FB 36

    FB 37

    FB 38

    FB 39

    FB 42

    FB 43

    FB 44

    FB 45

    FB 47

    FB 48

    FB 51

    FB 52

    FB 53

    FB 56

    FB 57

    FB 58

    FB 59

    FB 61

    FB 62

    FB 63

    FB 64

    FB 65

    FB 66

    FB 67

    FB 69

    FB 70

    FB 72

    FB 73

    FB 75

    FB 77

    FB 81

    FB 82

    FB 84

    FB 86

    FB 85

    FB 41

    FB 71

    FB 74

    Oil Cut ( % )

    Water Cut ( % )

    Example 1 Fourbear

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 1 Fourbear

    Date:1/1/1967

    Fourbear Structure Unit

    FB 2

    FB 3

    FB 5

    FB 6

    FB 7FB 8

    FB 9

    FB 10

    FB 11

    FB 12

    FB 13

    FB 14

    FB 15

    FB 16

    FB 17

    FB 18

    FB 19

    FB 20

    FB 21

    FB 22

    FB 23

    FB 24

    FB 25

    FB 26

    FB 27

    FB 28

    FB 29

    FB 30

    FB 31

    FB 32

    FB 34

    FB 35

    FB 36

    FB 37

    FB 38

    FB 39

    FB 42

    FB 43

    FB 44

    FB 45

    FB 47

    FB 48

    FB 51

    FB 52

    FB 53

    FB 56

    FB 57

    FB 58

    FB 59

    FB 61

    FB 62

    FB 63

    FB 64

    FB 65

    FB 66

    FB 67

    FB 69

    FB 70

    FB 72

    FB 73

    FB 75

    FB 77

    FB 81

    FB 82

    FB 84

    FB 86

    FB 85

    FB 41

    FB 71

    FB 74

    Oil Cut ( % )

    Water Cut ( % )

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 2 Quealy Dome

    (Dakota)

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 2 Quealy Dome

    (Dakota)

    Date:1/1/1942

    Holst 01

    Holst 10

    Holst 11

    Holst 12

    Holst 13

    Holst 15

    Holst 02

    Holst 04

    Holst 05

    Holst 06

    Holst 07

    Holst 08

    Holst 09

    Holst Woolf 1

    Wilson 01

    Wilson 03

    Wilson 04

    Wilson 02

    Oil Cut ( % )

    Water Cut ( % )

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 2 Quealy Dome

    (Dakota)

    Date:1/1/1944

    Holst 01

    Holst 10

    Holst 11

    Holst 12

    Holst 13

    Holst 15

    Holst 02

    Holst 04

    Holst 05

    Holst 06

    Holst 07

    Holst 08

    Holst 09

    Holst Woolf 1

    Wilson 01

    Wilson 03

    Wilson 04

    Wilson 02

    Oil Cut ( % )

    Water Cut ( % )

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 2 Quealy Dome

    (Dakota)

    Date:1/1/1948

    Holst 01

    Holst 10

    Holst 11

    Holst 12

    Holst 13

    Holst 15

    Holst 02

    Holst 04

    Holst 05

    Holst 06

    Holst 07

    Holst 08

    Holst 09

    Holst Woolf 1

    Wilson 01

    Wilson 03

    Wilson 04

    Wilson 02

    Oil Cut ( % )

    Water Cut ( % )

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 2 Quealy Dome

    (Dakota)

    Date:1/1/1953

    Holst 01

    Holst 10

    Holst 11

    Holst 12

    Holst 13

    Holst 15

    Holst 02

    Holst 04

    Holst 05

    Holst 06

    Holst 07

    Holst 08

    Holst 09

    Holst Woolf 1

    Wilson 01

    Wilson 03

    Wilson 04

    Wilson 02

    Oil Cut ( % )

    Water Cut ( % )

  • AQUIFER INFLUX MECHANISM/DIRECTION

    Example 2 Quealy Dome

    (Dakota)

    Date:1/1/1969

    Holst 01

    Holst 10

    Holst 11

    Holst 12

    Holst 13

    Holst 15

    Holst 02

    Holst 04

    Holst 05

    Holst 06

    Holst 07

    Holst 08

    Holst 09

    Holst Woolf 1

    Wilson 01

    Wilson 03

    Wilson 04

    Wilson 02

    Oil Cut ( % )

    Water Cut ( % )

  • DOMINANT FLUID FLOW DIRECTION

    Example 3 Kirby Creek Waterflood

  • DOMINANT FLUID FLOW DIRECTION

    Date:10/1/1968

    Kirby Creek Unit

    1220

    60

    1

    0

    0

    0

    0

    0

    KC 11

    KC 13

    KC 8

    KC 9

    KC 1

    KC 10

    KC 12

    KC 14

    KC 15

    KC 16

    KC 17

    KC 18

    KC 19

    KC 2

    KC 20

    KC 21

    KC 22

    KC 23

    KC 24

    KC 25

    KC 26

    KC 27

    KC 28

    KC 29

    KC 4

    KC 5

    KC 6

    KC 7

    KC 3

    Water Rate (Cal Day ) ( bbl/d )

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

    Just Prior to Unitization Example 3 Kirby Creek Waterflood

    Bubble Map

    of Water Rates (Inj & Prod)

  • Date:10/1/1972

    Kirby Creek Unit

    0726

    1680

    15

    0

    9

    0

    00

    KC 11

    KC 13

    KC 8

    KC 9

    KC 1

    KC 10

    KC 12

    KC 14

    KC 15

    KC 16

    KC 17

    KC 18

    KC 19

    KC 2

    KC 20

    KC 21

    KC 22

    KC 23

    KC 24

    KC 25

    KC 26

    KC 27

    KC 28

    KC 29

    KC 4

    KC 5

    KC 6

    KC 7

    KC 3

    Water Rate (Cal Day ) ( bbl/d )

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

    DOMINANT FLUID FLOW DIRECTION

    4 Yrs After Unitization Example 3 Kirby Creek Waterflood

    Bubble Map

    of Water Rates (Inj & Prod)

  • Date:12/1/1981

    Kirby Creek Unit

    0669

    2460

    76

    0

    26

    0

    50

    KC 11

    KC 13

    KC 8

    KC 9

    KC 1

    KC 10

    KC 12

    KC 14

    KC 15

    KC 16

    KC 17

    KC 18

    KC 19

    KC 2

    KC 20

    KC 21

    KC 22

    KC 23

    KC 24

    KC 25

    KC 26

    KC 27

    KC 28

    KC 29

    KC 4

    KC 5

    KC 6

    KC 7

    KC 3

    Water Rate (Cal Day ) ( bbl/d )

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

    DOMINANT FLUID FLOW DIRECTION

    13 Yrs After Unitization Example 3 Kirby Creek Waterflood

    Bubble Map

    of Water Rates (Inj & Prod)

  • Date:10/1/1992

    Kirby Creek Unit

    0524

    0332

    111

    0

    240

    21

    0

    17

    0

    160

    60

    0

    00

    0

    KC 11

    KC 13

    KC 8

    KC 9

    KC 1

    KC 10

    KC 12

    KC 14

    KC 15

    KC 16

    KC 17

    KC 18

    KC 19

    KC 2

    KC 20

    KC 21

    KC 22

    KC 23

    KC 24

    KC 25

    KC 26

    KC 27

    KC 28

    KC 29

    KC 4

    KC 5

    KC 6

    KC 7

    KC 3

    Water Rate (Cal Day ) ( bbl/d )

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

    DOMINANT FLUID FLOW DIRECTION