Abstract: An almond shell additive for a well working fluid is provided, wherein the almond shells are ground to certain particle size ranges to prevent, inhibit or remedy the occurrence of downhole equipment sticking. Also provided are wellworking fluids containing the almond shell additive and well working processes utilizing such compositions. The additive is also useful to reduce wall cake thickness and permeability, enhance well cake toughness, seal off depleted sands and micro fractures, reduce or prevent seepage loss, control dynamic spurt loss, and reduces drag and torque.

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 drilling fluid additive is provided including ground olive pulp. The ground olive pulp is prepared by drying olive pulp to remove residual water, and then grinding the pulp to a desirable particle size. The pulp is preferably ground to particle sizes of less than about 1500 microns. In a preferred embodiment, 90 percent of the particles are less than about 100 microns in size and 50 percent of the particles are less than about 30 microns in size. The ground olive pulp can be added to oil or water-based drilling fluids. The preparation and use of waste olive pulp as a drilling fluid additive provides an environmentally safe method for disposing of waste olive pulp.

Abstract: An drilling fluid additive to reduce loss circulation includes comminuted rice fraction and corn cobs, and includes ground at least one of ground wood fiber, ground nut shells, ground paper and shredded cellophane. A method of treating a drilling fluid includes contacting such drilling fluid additive with the base drilling fluid to form well fluid. A method of operating a well includes circulation of such a well fluid into and out of a borehole.

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

Abstract: An additive to reduce fluid loss from drilling fluids is comprised of comminuted products from the rice plant or blends of other comminuted plant materials with the rice products. Polymers to reduce fluid loss even lower and friction-reducing materials may be added to the plant materials.

Abstract: The cork or pith portion of various nuts is utilized as a seepage loss reducing additive without increasing, and in some cases reducing, the viscosity of the drilling mud used in drilling boreholes.

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

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

Abstract: An additive to reduce fluid loss from drilling fluids is comprised of comminuted products from corn cobs or mixtures with comminuted rice products. Polymers to reduce fluid loss even lower and friction-reducing materials may be added to the plant materials.

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: Fracture initiation and propagation during drilling are prevented or inhibited by including an effective amount of a specially sized solid particulate loss prevention material in the drilling fluid prior to encountering formation breakdown in a susceptible zone.

Abstract: The invention provides well working compositions containing a particulate additive to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions.

Abstract: An additive to reduce fluid loss from drilling fluids is comprised of comminuted products from the rice plant or blends of other comminuted plant materials with the rice products. Polymers to reduce fluid loss even lower and friction-reducing materials may be added to the plant materials.

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.

Abstract: The invention provides well working fluid compositions containing cotton burrs ground to certain particle size ranges to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions. Also provided is a seepage loss additive comprising the ground cotton burrs in combination with one or more of ground oat hulls, ground corn cobs, hydrophobic organophilic water wettable cotton, ground citrus pulp, ground peanut shells, ground rice hulls, and ground nut shells.

Abstract: The invention provides well working fluid compositions containing oat hulls ground to certain particle size ranges to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions. Also provided is a seepage loss additive comprising the ground oat hulls in combination with one or more of ground corn cobs, hydrophobic organophilic water wettable cotton, ground citrus pulp, and ground cotton burrs.