Presented by:  Kathleen Neset Wellsite Geology and Mudlogging
 
<ul><li>Geologist and mudlogger work 12 hr shifts </li></ul><ul><li>Geologist:  1 st  in command of wellsite mudlogging op...
<ul><li>Mudlogger:  No specific education required </li></ul><ul><li>Provides general mudlogging labor </li></ul><ul><ul><...
 
 
 
Divide McKenzie Williams Burke Mountrail Ward Bottineau Renville McHenry McLean Dunn Stark Billings Oliver Northern Play S...
Bakken Formation Middle Member  Contour Interval 5 ft
<ul><li>North Dakota Stratigraphic Column </li></ul><ul><li>Bakken Formation </li></ul><ul><li>~360 Million Years Old </li...
Stratigraphy Three Forks Formation Bakken Formation Lodgepole Formation lower middle upper Pelmatozoan limestone “ False B...
GR Res
Lithofacies 7 - Siltstone Lithofacies 4 – Interbedded Dark Grey  Shale and Buff Silty Sandstone Lithofacies 3 - Sandstone ...
Hot Gamma ROP Increase Gas Increase Density – Neutron Crossover ROP Increase Gas Increase Clean Gamma ROP Increase Hot Gamma
<ul><li>Mudloggers work closely with directional drillers </li></ul>
 
Drillpipe Non-magnetic Drill Collar Bent Sub Mud Motor Rotating Sub
 
HS (0) 90R 90L 45R 45L 135R 135L 180 (LS)
<ul><li>North Dakota Stratigraphic Column </li></ul><ul><li>Bakken Formation </li></ul><ul><li>~360 Million Years Old </li...
 
Target  Upper SS  Middle Stringer Base Target  Lower Bakken Shale Three Forks
Upper SS  Gamma 60-80 API ROP 30-60 ft/hr Lithology Sandstone
Middle Stringer Gamma 90-100+ API ROP 50 ft/hr Lithology Shale
Target  Gamma 30-50 API ROP 70 ft/hr Lithology Sandstone
Base Target  Gamma 60-90 API ROP 25-40 ft/hr Lithology Sandstone/Siltstone
Three Forks Gamma 100+ API ROP 20-30 ft/hr Lithology Shale
<ul><li>Linseth 4-8H, McKenzie Co. </li></ul><ul><ul><li>Lower lateral, 373 BOPD </li></ul></ul><ul><ul><li>Upper lateral,...
<ul><li>July 2010 – 321,042 BOPD </li></ul><ul><li>July 2010 – 320,371 MCF/D </li></ul><ul><li>5,051 Producing Wells </li>...
<ul><li>Is the Three Forks/Sanish a separate reservoir from the Middle Bakken? </li></ul><ul><li>Do hydraulic fractures re...
<ul><li>ND Research – study in currently drilling wells to determine fracture stimulation growth – continued research frac...
<ul><li>Did we miss the Bakken and Three Forks all the years we’ve been drilling? </li></ul><ul><li>Technology made the Ba...
N742 EN Will Trust C
<ul><li>Neset Consulting Service Inc. </li></ul><ul><li>North Dakota Department of Mineral Resources Newsletter; Volume 35...
<ul><li>Widespread Bakken deposits </li></ul><ul><li>Phase I – initial drilling – define limits of pay </li></ul><ul><li>P...
Phase I Phase III
 
 
<ul><li>Five wells drilled – 1 in 1953, 2 in 1964, 1 in 1966, and 1 in 1971. </li></ul><ul><li>Approximately 3400’. </li><...
<ul><li>22 stage frac </li></ul><ul><li>27,652 bbls water </li></ul><ul><li>2.5 million bls proppant </li></ul><ul><li>SHD...
<ul><li>Planning – housing Phases. </li></ul><ul><li>Education – understanding oil industry. </li></ul><ul><li>Youth – div...
 
 
 
Paving  $1,000,000 / mile Graveling  $3600 /mile Rebuild Gravel Road  $300,000/mile
 
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Kathy Nesset

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  • Figure 1. Photographs of core scaled to average thicknesses are plotted against the 241-foot-high North Dakota State Capitol. The Bakken Pool or Bakken Source System is an average of 200 feet thick and would extend from the 3rd to the 15th fl oor of the capitol. The Bakken is on average 100 feet thick and would extend from the 7th to the 12th fl oor and the Middle Bakken from the 9th to the 11th fl oor.
  • Kathy Nesset

    1. 1. Presented by: Kathleen Neset Wellsite Geology and Mudlogging
    2. 3. <ul><li>Geologist and mudlogger work 12 hr shifts </li></ul><ul><li>Geologist: 1 st in command of wellsite mudlogging operations </li></ul><ul><ul><li>B.S. in Geology </li></ul></ul><ul><li>Mudlogging – geologic report </li></ul><ul><li>Correlations – interpretations </li></ul><ul><li>Communications on rig to office </li></ul><ul><li>Compile data and interpret </li></ul><ul><li>Land & Geosteer Horizontal Wells </li></ul>
    3. 4. <ul><li>Mudlogger: No specific education required </li></ul><ul><li>Provides general mudlogging labor </li></ul><ul><ul><li>Wash, evaluate, and catalogue samples </li></ul></ul><ul><ul><li>Gas analysis </li></ul></ul><ul><ul><li>Directional survey/gamma import </li></ul></ul>
    4. 8. Divide McKenzie Williams Burke Mountrail Ward Bottineau Renville McHenry McLean Dunn Stark Billings Oliver Northern Play Southern Play Bakken Areas of Interest
    5. 9. Bakken Formation Middle Member Contour Interval 5 ft
    6. 10. <ul><li>North Dakota Stratigraphic Column </li></ul><ul><li>Bakken Formation </li></ul><ul><li>~360 Million Years Old </li></ul><ul><li>Paleozoic Era </li></ul><ul><li>Mississippian/Devonian Period </li></ul><ul><li>~110’ thick </li></ul><ul><li>Three Forks/Sanish </li></ul><ul><li>~370 Million Years Old </li></ul><ul><li>Paleozoic Era </li></ul><ul><li>Devonian Period </li></ul><ul><li>~240’ thick </li></ul>Bakken Three Forks
    7. 11. Stratigraphy Three Forks Formation Bakken Formation Lodgepole Formation lower middle upper Pelmatozoan limestone “ False Bakken” Devonian Mississippian “ Sanish”
    8. 12. GR Res
    9. 13. Lithofacies 7 - Siltstone Lithofacies 4 – Interbedded Dark Grey Shale and Buff Silty Sandstone Lithofacies 3 - Sandstone Lithofacies 2 – Interbedded Dark Grey Shale and Buff Silty Sandstone Lithofacies 1 - Siltstone (From LeFever and others, 1991) Lower Shale Upper Shale Lithofacies of the Middle Member
    10. 14. Hot Gamma ROP Increase Gas Increase Density – Neutron Crossover ROP Increase Gas Increase Clean Gamma ROP Increase Hot Gamma
    11. 15. <ul><li>Mudloggers work closely with directional drillers </li></ul>
    12. 17. Drillpipe Non-magnetic Drill Collar Bent Sub Mud Motor Rotating Sub
    13. 19. HS (0) 90R 90L 45R 45L 135R 135L 180 (LS)
    14. 20. <ul><li>North Dakota Stratigraphic Column </li></ul><ul><li>Bakken Formation </li></ul><ul><li>~360 Million Years Old </li></ul><ul><li>Paleozoic Era </li></ul><ul><li>Mississippian/Devonian Period </li></ul><ul><li>~110’ thick </li></ul><ul><li>Three Forks/Sanish </li></ul><ul><li>~370 Million Years Old </li></ul><ul><li>Paleozoic Era </li></ul><ul><li>Devonian Period </li></ul><ul><li>~240’ thick </li></ul>Bakken Three Forks/Sanish
    15. 22. Target Upper SS Middle Stringer Base Target Lower Bakken Shale Three Forks
    16. 23. Upper SS Gamma 60-80 API ROP 30-60 ft/hr Lithology Sandstone
    17. 24. Middle Stringer Gamma 90-100+ API ROP 50 ft/hr Lithology Shale
    18. 25. Target Gamma 30-50 API ROP 70 ft/hr Lithology Sandstone
    19. 26. Base Target Gamma 60-90 API ROP 25-40 ft/hr Lithology Sandstone/Siltstone
    20. 27. Three Forks Gamma 100+ API ROP 20-30 ft/hr Lithology Shale
    21. 28. <ul><li>Linseth 4-8H, McKenzie Co. </li></ul><ul><ul><li>Lower lateral, 373 BOPD </li></ul></ul><ul><ul><li>Upper lateral, 196 BOPD </li></ul></ul>
    22. 29. <ul><li>July 2010 – 321,042 BOPD </li></ul><ul><li>July 2010 – 320,371 MCF/D </li></ul><ul><li>5,051 Producing Wells </li></ul>
    23. 30. <ul><li>Is the Three Forks/Sanish a separate reservoir from the Middle Bakken? </li></ul><ul><li>Do hydraulic fractures reach between the two formations?? </li></ul><ul><li>Do the two formations communicate at all? </li></ul>
    24. 31. <ul><li>ND Research – study in currently drilling wells to determine fracture stimulation growth – continued research frac methods. </li></ul><ul><li>Very early in learning Bakken/Sanish. </li></ul><ul><li>Bottineau County – Spearfish & Three Forks. </li></ul><ul><li>Request update study by USGS. </li></ul>
    25. 32. <ul><li>Did we miss the Bakken and Three Forks all the years we’ve been drilling? </li></ul><ul><li>Technology made the Bakken work! </li></ul><ul><li>How far out do fracs reach? </li></ul>
    26. 33. N742 EN Will Trust C
    27. 34. <ul><li>Neset Consulting Service Inc. </li></ul><ul><li>North Dakota Department of Mineral Resources Newsletter; Volume 35 No. 2 </li></ul><ul><li>NDPC Newsletter </li></ul>
    28. 35. <ul><li>Widespread Bakken deposits </li></ul><ul><li>Phase I – initial drilling – define limits of pay </li></ul><ul><li>Phase II – development drilling – hold leases </li></ul><ul><li>Phase III – infill drilling – multipad drilling </li></ul><ul><li>Phase IV – secondary & tertiary recovery </li></ul>
    29. 36. Phase I Phase III
    30. 39. <ul><li>Five wells drilled – 1 in 1953, 2 in 1964, 1 in 1966, and 1 in 1971. </li></ul><ul><li>Approximately 3400’. </li></ul><ul><li>4 Madison, 1 Lodgepole formation. </li></ul><ul><li>1 Drill stem test recovered salt water from Madison formation. </li></ul><ul><li>All dry hole status. </li></ul>
    31. 40. <ul><li>22 stage frac </li></ul><ul><li>27,652 bbls water </li></ul><ul><li>2.5 million bls proppant </li></ul><ul><li>SHD Simba is T150N R90W and on eastern edge of Bakken producing wells. </li></ul>
    32. 41. <ul><li>Planning – housing Phases. </li></ul><ul><li>Education – understanding oil industry. </li></ul><ul><li>Youth – diverse group – reach out to the youth and the parents will come along! </li></ul><ul><li>Ag mediation services. </li></ul>
    33. 45. Paving $1,000,000 / mile Graveling $3600 /mile Rebuild Gravel Road $300,000/mile

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