Bore hole

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Most water bores that are drilled by the rotary mud method have a length of slotted PVC or stainless steel screen at the bottom to allow the water in to the borehole. Much as we want plenty of water to flow in we want to  keep fine sands and silt out as much as possible. This is the job of the gravel packing envelope. Around the screen the drilled bore hole is a wider diameter than the bore casing itself. This area is called the annulus.The annulus is packed with carefully graded driller's grave Jupiter's Legacy, Living Underground, Solar Powered Water Pump, Water Well Drilling Rigs, Wood Gates, Agricultural Engineering, Steel Screen, Water Well Drilling, Stainless Steel Screen

Most water bores that are drilled by the rotary mud method have a length of slotted PVC or stainless steel screen at the bottom to allow the water in to the borehole. Much as we want plenty of water to flow in we want to keep fine sands and silt out as much as possible. This is the job of the gravel packing envelope. Around the screen the drilled bore hole is a wider diameter than the bore casing itself. This area is called the annulus.The annulus is packed with carefully graded driller's…

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US3774683A - Method for stabilizing bore holes - Google Patents Hydraulic Cement, Bore Hole, Cement, Word Search Puzzle, Composition

Description United States Patent 1191 Smith et al. Nov. 27, 1973 METHOD FOR STABILIZING BORE HOLES 3,044,547 7/1962 Jarboe, Jr. 166/293 x 2,708,973 5 1955 Twining 166/293 x [75] lnvemms- Dwlgh Okla-1 3,636,714 1 1972 KOlOl et a]. 61 36 R Carl Lane, Las Vegas, 3,363,689 l/l968 Smith et a].... 166/293 x 1,716,925 6 1929 Loomis 166 293 [73] Asslgnee' gz g Cmnpany Duncan 2,398,347 4 1946 Anderson 166 293 x [22] Filed: May 1972 Primary Examiner-Stephen J. Novosad 2 App], 25 ,023 Attorney-John H…

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