FRACTIONAL FLOW

Posts Tagged ‘Mountrail

Is the Red Queen outrunning Bakken LTO extraction?

This post is an update on LTO extraction in Bakken based upon published data from the North Dakota Industrial Commission (NDIC) as per January 2015.

This post also presents a closer look at developments in LTO extracted from the three of the four counties that presently dominates LTO extraction; McKenzie, Mountrail and Williams.

With an oil price below $50/Bbl (WTI) the companies involved in extraction of LTO in Bakken faces two financial challenges;

  1. The decline in the cash flow from operations reduces funding capacities for manufacturing new wells. A lower oil price also lowers the value of the companies’ assets and borrowing capacities.
  2. The “average” well with around 90 kb [90,000 Bbls] of flow in its first year is estimated to have an undiscounted point forward break even (that is a nominal break even with 0% return for the well) at around $65/Bbl (WTI). The break even price increases with increases in the return requirement.


In short, LTO extraction at present prices
($45/Bbl, WTI) makes little commercial sense!

Figure 01: The chart above shows development in Light Tight Oil (LTO) extraction from January 2009 and as of January 2015 in Bakken North Dakota [green area, right hand scale]. The top black line is the price of Western Texas Intermediate (WTI), red middle line the Bakken LTO price (sweet) as published by the Director for NDIC and bottom orange line the spread between WTI and Bakken LTO wellhead all left hand scale.

Figure 01: The chart above shows development in Light Tight Oil (LTO) extraction from January 2009 and as of January 2015 in Bakken North Dakota [green area, right hand scale]. The top black line is the price of Western Texas Intermediate (WTI), red middle line the Bakken LTO price (sweet) as published by the Director for NDIC and bottom orange line the spread between WTI and Bakken LTO wellhead all left hand scale.

From December 2014 to January 2015 LTO extraction from Bakken(ND) declined from 1.16 Mb/d to 1.13 Mb/d.

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Are Mountrail’s Sweet Spots Past Their Prime?

This post is an update on total Light Tight Oil (LTO) extraction from Bakken in North Dakota based upon actual data as of October 2014 from North Dakota Industrial Commission (NDIC). It further presents a statistical analysis on developments of well productivity with a detailed look at developments in Parshall, Reunion Bay and Sanish.

  • There were general improvements in LTO well productivity in Bakken during 2013.
  • Present trends in LTO well productivity for Mountrail’s sweet spots (Alger, Parshall, Reunion Bay, Sanish and Van Hook) suggests these are past their prime.
  • Figure 29 in this post show development in well productivity for Alger and Van Hook and figures 06, 08 and 10 for Parshall, Reunion Bay and Sanish. A common feature for Parshall, Reunion Bay, Sanish, and Van Hook is that these reached new highs in well productivity for wells started in 2013.
    Alger has been in general decline since 2011.
  • LTO extraction in recent years may be viewed as a source for global swing production for oil.

Figure 01: The chart above shows development in Light Tight Oil (LTO) extraction from January 2009 and as of October 2014 in Bakken North Dakota [green area, right hand scale]. The top black line is the price of Western Texas Intermediate (WTI), red middle line the Bakken LTO price (sweet) as published by the Director for NDIC and bottom orange line the spread between WTI and Bakken LTO wellhead all left hand scale.

Figure 01: The chart above shows development in Light Tight Oil (LTO) extraction from January 2009 and as of October 2014 in Bakken North Dakota [green area, right hand scale]. The top black line is the price of Western Texas Intermediate (WTI), red middle line the Bakken LTO price (sweet) as published by the Director for NDIC and bottom orange line the spread between WTI and Bakken LTO wellhead all left hand scale.

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Written by Rune Likvern

Friday, 9 January, 2015 at 20:40

Will the Bakken Red Queen Outrun Growth in Water Cut?

This post presents a closer examination of actual data on Light Tight Oil (LTO) extraction, developments in water cut and Gas Oil Ratio (GOR) for some pools and individual wells in the Middle Bakken and Three Forks formations in North Dakota.

LTO extraction’s primary drive mechanism is (differential) pressure and there are some noticeable trends for LTO extraction from Bakken:

  • LTO productivity (measured as average totals by vintage) in 2014 have increased, most notably from the Middle Bakken formation which has better well productivity than Three Forks.
    There are differences to LTO productivity developments amongst the pools.
  • Water cut; generally increases as the wells ages.
    An indicator for depletion.
  • Water cut; generally increases for newer wells.
    This suggests that the areas with the highest oil saturation has been developed.
  • Gas Oil Ratio (GOR, produced and expressed as Mcf/Bbl); generally increases as the well ages. 
  • What appears to characterize a Bakken sweet spot is the presence of natural fractures (favorable geology), high oil saturation and a pressure above hydrostatic pressure.

Further, this post also has a brief look into well economics and describes how well manufacturing is likely to be affected by the decline in the oil price and what this may entail if a lower oil price ($70/Bbl, WTI) is sustained.

Figure 01: The chart above shows development in the water cut [water cut = [water/(water + LTO)] for the “average” wells by vintage in North  Dakota. Produced water (brine) is transported to dedicated disposal sites. Chart by Enno Peters.

Figure 01: The chart above shows development in the water cut [water cut = [water/(water + LTO)] for the “average” wells by vintage in North Dakota. Produced water (brine) is transported to dedicated disposal sites.
Chart by Enno Peters.

What is fascinating about LTO wells in Bakken is that the individual wells appear to have their own “personality” when it comes to productivity, surrounding rock properties, water/oil saturation and GOR which makes well management (of close to 9,000 “personalities”) a paramount task.

This post contains in total 30 charts that hopefully are self explanatory.

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