Abstract: Ground peanut hulls in the range of -150 to 250 standard size mesh are mixed with a viscosifier and added to a fluid for circulation in a borehole during drilling, completion and workover operations. Below 250 standard sieve mesh the ground peanut hulls are distributed in a range down to 700 standard sieve mesh, with some of the ground peanut hulls having a size less than 700 standard sieve mesh.

Abstract: A fluid loss additive for a fracture treatment fluid, a fracture treatment fluid, and a process for fracturing a subterranean formation, utilize finely ground peanut hulls, wherein 10% or more of the finely ground peanut hulls is in the particle size range of less than 20 standard sieve mesh and greater than 500 standard sieve mesh.

Abstract: This invention relates to the optimum formulation of workover and completion fluids used in oil, gas, water, or mineral recovery wells. Specifically, it discloses a method of processing peanut hulls and combining these with a suitable suspending agent in order to effect a seal against permeable formations during workover, completion, coring, drill-stem-testing, or drilling operations, without causing permanent permeability damage. Moreover, it discloses that when the procedures discovered are practiced as taught by this invention, the sealing action is reversible by simple fluid circulation and placing the well on production.

Abstract: Low fluid leakoff cementing compositions and filtration control additive for cement used in cementing operations for oil and gas wells include the use of finely ground peanut hulls.

Abstract: A by-product of peanut growing is utilized in the drilling fluid while drilling boreholes to reduce friction and to reduce the normal adverse effects inherent in such drilling fluid.

Abstract: A by-product of peanut growing is utilized in the drilling fluid while drilling boreholes to reduce friction and to reduce the normal adverse effects inherent in such drilling fluid.