Abstract: The downhole friction reducing tool of the present invention includes an integral friction coefficient reducer and is configured to reduce friction in all planes, reduce torque and/or drag continually and reduce frictional wear and damage that can result in loss of integrity to surface areas where it travels. The friction coefficient reducer involves a ball transfer unit having a plurality of roller ball units. The roller ball units include a large-diameter load-bearing roller ball unit and a plurality of smaller-diameter supporting roller ball units.

Abstract: The downhole friction reducing tool of the present invention includes an integral friction coefficient reducer and is configured to reduce friction in all planes, reduce torque and/or drag continually and reduce frictional wear and damage that can result in loss of integrity to surface areas where it travels. The friction coefficient reducer involves a ball transfer unit having a plurality of roller ball units. The roller ball units include a large-diameter load-bearing roller ball unit and a plurality of smaller-diameter supporting roller ball units.

Abstract: A bridge plug for use in a wellbore having an anchoring system to grip the inner surface of the surrounding wellbore, as well as a sealing system or packing element to seal against the inner surface. A hinged flapper permits flow of fluid in one axial direction through a central through bore, but can selectively contact against a seat to create a fluid pressure seal and prevent fluid flow through said central through bore in an opposite axial direction. The flapper can be manufactured of frangible material and/or dissolvable material, permitting selective removal of the flapper when desired.

Abstract: A bridge plug for use in a wellbore having an anchoring system to grip the inner surface of the surrounding wellbore, as well as a sealing system or packing element to seal against the inner surface. A hinged flapper permits flow of fluid in one axial direction through a central through bore, but can selectively contact against a seat to create a fluid pressure seal and prevent fluid flow through said central through bore in an opposite axial direction. The flapper can be manufactured of frangible material and/or dissolvable material, permitting selective removal of the flapper when desired.

Abstract: A bridge plug for use in a wellbore having an anchoring system to grip the inner surface of the surrounding wellbore, as well as a sealing system or packing element to seal against the inner surface. A hinged flapper permits flow of fluid in one axial direction through a central through bore, but can selectively contact against a seat to create a fluid pressure seal and prevent fluid flow through said central through bore in an opposite axial direction. The flapper can be manufactured of frangible material and/or dissolvable material, permitting selective removal of the flapper when desired.