Methods to drill a hole of shaft by sand exhausted in an underground formation, to fill in a depleted sands underground formation.In order to reduce movement lost in underground formations that include sand exhausted,And to stabilize a hole of shaft during drilling of the well bore through said sand exhausted in an underground formation

摘要

"Methods to drill a hole of shaft by sand exhausted in an underground formation, to fill in a depleted sands underground formation.In order to reduce movement lost in underground formations that include sand exhausted,And to stabilize a hole of shaft during drilling of the well bore through said sand exhausted in an underground formation ".A method is provided to reduce loss of drilling fluid and to stabilize a hole of shaft during drilling through sand exhausted in an underground formation which includes sand esGotadas.The method comprises introducing in the interior of said hole of shaft, within the so-called depleted sands, an aqueous fluid comprising silicate, or siliconato, carbon grafu00edtico resilient.In a quantity effective tapamento substantially the pores in said sand exhausted.