<html> <head> <title>Rule 74:02:04:36 Alternative well construction requirements for certain Inyan Kara wells.</title> <META NAME="Keywords" Content="Administrative Rules 74:02:04:36"> <META NAME="Description" Content="Administrative Rules 74:02:04:36 Alternative well construction requirements for certain Inyan Kara wells."> <meta name=Generator content="Microsoft Office HTML Filter 2.0"> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=Originator content="Microsoft Word 10"> <style> <!-- --> </style> </head> <body lang=EN-US> <div> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>74:02:04:36.&nbsp;&nbsp;Alternative well construction requirements for certain Inyan Kara wells.</b> Well construction as described in this section may be used for private and reasonable domestic use wells and for noncommercial livestock watering wells as an alternative to the construction required by §&nbsp;74:02:04:28. All other wells, including public water supply wells, shall be constructed as required by §&nbsp;74:02:04:28. If any of the following requirements cannot be met, the well construction must comply with the requirements of §&nbsp;74:02:04:28. The following alternative well construction may be used to construct and complete wells into the Inyan Kara group if the top of the Inyan Kara is more than 1,000 feet below the land surface. The Inyan Kara group includes the Fall River and the Lakota. The alternative well construction may be used if the following requirements are met:</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1)&nbsp;&nbsp;Surface casing is installed and pressure-grouted with cement grout to a depth of at least 300 feet or into an unweathered clay or shale formation, whichever depth is greater;</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (2)&nbsp;&nbsp;The drill bit used to drill into the production aquifer is no larger than four and one-half inches in diameter;</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (3)&nbsp;&nbsp;The size of the production casing installed below the grouted surface casing down to and the screen installed in the production aquifer is no larger than two inches in diameter;</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (4)&nbsp;&nbsp;The production casing material installed below the surface casing and down to the production formation is type K hard copper, schedule 80 thermoplastic, brass, or stainless steel. The casing may not be installed under conditions that exceed the manufacturer's recommendations;</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (5)&nbsp;&nbsp;Depending upon local conditions, packers and other construction techniques may be used that result in sealing the annulus between the drill hole and the casing above the production aquifer. The well driller shall construct the well to prevent movement of mud, silt, or other aquifer water into the production aquifer well. Packers made from burlap bags, gunny sacks, or similar materials are prohibited;</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (6)&nbsp;&nbsp;The production casing and packers are not installed unless the weight of the drilling fluid is heavy enough to overcome aquifer pressures; and</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (7)&nbsp;&nbsp;Only one casing is placed into the production aquifer of a new well. New wells double-cased into the production aquifer are prohibited. However, if the original casing becomes defective, the well may be rehabilitated by placing new casing inside the old defective casing.</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; See Appendix G at the end of this chapter.</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Source:</b> 12 SDR 50, effective September 29, 1985; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 18 SDR 224, effective July 16, 1992.</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>General Authority:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-2-5">46-2-5</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-6-20">46-6-20</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-6-27">46-6-27.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Law Implemented:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-6-6.1">46-6-6.1</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-6-10">46-6-10</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-6-20">46-6-20</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=46-6-27">46-6-27.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Note:</b> Although this type of well construction may be less expensive below the cement-grouted surface casing, it is more likely to fail than a well constructed and grouted pursuant to §&nbsp;74:02:04:28. The success of this type of well construction is dependent upon the shale above the production aquifer sloughing off and filling and sealing the drill hole annulus outside the casing to prevent movement of high-pressure production aquifer water outside the casing, movement of other aquifer water, mud, or silt into the production aquifer, or movement of other aquifer water between aquifers.</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> </div> </body> </html>