Natchitoches Parish

All things, people, companies, places & geology related to the Haynesville Shale play in Natchitoches Parish.

SWN wells in King Hill

SWN is drilling two wells in T10 R9 S6 and S7.  The well information on SONRIS shows they started drilling in Dec 2022 but stopped in February of 2023.  I don't know how to read the well information reported.  Does it look like they reached target depth?  Can someone look and see if the drilling had problems.  If these wells are good, then i would think it would improve the interest/value in the nearby sections to the South.  At least when I talk to the Tellurian landman he says the area is not proven and therefore lease offers are low.  Thanks in advance for any feedback.  Serial numbers are 253969 and 253968.

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    Rock Man

    Decided to look at this after reading the initial posts. I have a theory as to what happened here.

    See the attached PDF - shows a close up of this specific area. The two SWN wells / permits in question indicated (orange box). 

    I don't keep up on M&A in this are but looking like SWN acquired laterals that had been drilled earlier by Indigo and EnCana (Ovintiv). Also note the two EnCana / Ovintiv 2011 dry hole laterals that were drilled and plugged.

    • So a new drilling area for SWN as they permit these two new laterals to step out to the east away from the historical producing area.

    SWN doing pad drilling here, i.e., two wells on same surface pad. Drill the surface hole on #1 and then skid the rig to drill surface hole on #2. Then drill the intermediate hole on both wells before drilling the laterals on both wells.

    • This is a great plan and saves a lot of money IF drilling operations go as planned.

    Things went smoothly here as SWN drilled and cased the surface holes to about 2000'.

    On reading the details in SONRIS, during the drilling of the intermediate hole on the #002 well, all heck broke lose.

    • Gas kick around 5700' that needed to be addressed. H2S alarms going off a little deeper which stopped drilling until this issue was addressed (false alarm but dead time with hole open and no drilling), got the well down to around 9000' but then had to back ream the hole to get it open enough for future operations. More time with open hole.
    • Then the hole started to pack off on them (i.e., cave in / collapse) which caused a ton of problems.
    • Eventually lost circulation which then led to them getting stuck.
    • Luckily got unstuck but appears that hole was in such poor condition, the decision was made to set plugs and abandon the hole. 

    This is all happening well above the kickoff part of the hole before getting to the 13,700' TVD of the planned lateral. 

    My thoughts here are the SWN had a drilling plan that was flawed and led to a lot of problems as to controlling the well and drilling a clean, efficient wellbore. The SONRIS notes are a litany of drilling problems.

    • Instead of skidding the rig over to go back into the #001 well (that had casing to 2000') and try to drill intermediate hole with what appears to be a flawed drilling program, management opted to get the rig off location.

    Essentially - back to the drawing board.

    I can foresee them coming back to this pad and going into the #001 well to resume drilling intermediate and lateral hole there.

    • Assuming they put together a good drilling and mud program). 

    The #002 well is dead and will never be re-entered.

    These two laterals were permitted 1100' apart.

    Drilling these deep laterals is not easy - and subsurface issues change quickly and can lead to unexpected drilling problems (like hole collapsing, lost circulation, unexpected gas zones, etc.).

    • Have rig on location costing over $50 to $60,000 per day is no time to be trying to figure out drilling problems. Better to cut and run and come back to drill another day.

    Of course, this is always a possibility of human error on location that ended up spiraling things out of control.

    • Only SWN knows the real reason for what happened here - and that info will never be made public,

    Just my opinion based on looking this over.

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      Brian

      These two King Hill wells were completed by SWN.  The new serial numbers are 254175 and 254176.   Sonris just reported the initial production as 36,408 MCFD and 34,032 MCFD respectively.  These seem like very good volumes for wells at the edge of the play.  SWN has three more wells currently drilling in the same sections.  I hope this means the adjacent southern sections that Tellurian has leased will also be productive.

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        Paw

        Is there a delay in updating Sonris, or has access changed.  In 10-10-30 SWN drilled serial 254265 and 254266, completed, fracked etc, but no updates on Sonris for months that I can see.  Also drilling currently in 10-10-29 for 254543 and 254544.  Maybe I’m looking in wrong place?