Laserfiche WebLink
GW-N13(WN0013) <br /> Construction Details : <br /> Additional Details Continued: <br /> Cement mixture used for the plug above the packer/basket arrangement on all <br /> Dakota Coal Underburden wells consisted of the following: 2'/2 bags (235 lbs) <br /> Type V (sulfate resistant) cement, 1/4 bag (12.5 lbs) bentonite, and 15 gallons <br /> water (plus or minus to obtain a "thick, frosting-like" consistency). This <br /> mixture was tremmied to within 5 feet of the packer/basket arrangement via <br /> a 1 " id galvanized metal pipe. PCC's air-driven portable grout machine (stored <br /> at the Seneca II Mine) powered by the drill rigs air compressor was used to <br /> pump the cement. The cement used for the five foot surface seal was regular <br /> Type II Portland cement. <br /> 15-2-3i <br /> Revised 11/01/86 <br />