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What is Grind and Inject?
When a well is spudded (the beginning of drilling), a drilling mud is constructed by mixing a bentonite clay with water to produce a viscous, thixotropic solution, or slurry, that is capable of performing several functions essential to drilling the well, including mud, or seal the well bore, overbalance the formation pressure and remove cuttings from the well bore.
As the formation is drilled, rock material is ground up, some into large particles, and some pulverized and suspended in the mud system. The process raises the voscosity to a point where the mud is not easily pumped. As the rock-laden mud curculates to the surface, it passes over screens to remove the coarse material. To maintain the mud at a pumpable viscosity, desilters, and centrifuges can be used to remove finer particles. In addition, the mud is diluted, or "watered back" to reduce its viscosity. This increases the volume of mud and some of it must be removed.
Drill cuttings, or the solid material that results from drilling wells, are recovered at the surface through the use of shakers, desilters, and centrifuges. These materials are run through our patented processes until it is fine enough to be pumped into the abandoned well without plugging up the openings.
We are the patent holder of Grind and Inject and over our 25 years of experience, have injected over 4M BBL of hazardous and non-hazardous site material.
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 G&I Injection Plant under Construction |