Patent ID: 9366084
Filing Date: 2016-06-14
CPC Classification: E21B

Claim Text:
1. A helical displacement well for expediently penetrating the ground and remaining insitu, including a preassembled penetrator tube for rotary insertion in the earth, said preassembled penetrator tube including a rectilinear external casing with a cylindrical wall having internal and external surfaces, a longitudinal axis, a ground penetrating end for insertion in the ground and an upper end for extending from said ground penetrating end toward the surface of the ground, a penetration cap at said ground penetrating end of said rectilinear external casing of said penetrator tube shaped for penetrating the ground and closing passage of soil into said penetrating end of said rectilinear external casing, at least one helical plate mounted about said external casing of the penetrator tube adjacent said ground penetrating end for engaging the soil surrounding said external casing, the helical plate is angled with respect to the longitudinal axis of said external casing and is wrapped about said external casing of said penetrator tube between 180 and 360 degrees and includes a leading edge that is tangential with the shape of said outer casing and a trailing edge that extends in an arc diverging from said external casing and diverging from said leading edge for progressively moving said penetrator tube into the ground in response to rotation of said external casing of the penetrator tube about said longitudinal axis, said external casing of said penetrator tube defining there through a plurality of openings for the passage of water from about said external casing into said external casing, at least one insert positioned within said external casing of said penetrator tube defining a plurality of filter openings of a size to pass liquid there through and to impede the movement of soil from outside said external casing through said insert, whereby said penetrator tube, helical plate, pile point and insert may be simultaneously rotatably driven into the ground.