Abstract: A geothermal energy transfer and utilization system makes use of thermal energy stored in hot solute-bearing well water to generate a thermal working fluid from an injected flow of clean fluid. The working fluid is then used for operating a turbine-driven pump near the well bottom for pumping the hot solute-bearing water in liquid state to the earth's surface, where it is used by transfer of its heat content to a closed-loop generator-turbine alternator combination for the beneficial generation of electrical power. The deep well pump system is supported within the well casing pipe from the earth's surface by a turbine exhaust conduit. In view of the effects of differential expansion on the relative lengths of the well casing pipe and the exhaust conduit, a novel flexible seal is provided between the suspended turbine-pump system and the well casing.

Abstract: The invention is a packer cup assembly which attaches to the lower end of the mandrel in the tree saver which is itself attached to the "Christmas Tree" of a well head or the like. The assembly is tubular in configuration and comprises a metal part with internal threads at one end and a thinner walled part at its other end. The outer diameter of the lower end of the metal part is less than the outer diameter of the threaded end part in order to permit an elastomeric sleeve to fit over and extend beyond the reduced diameter end part of the metal part. The outer end of the elastomeric sleeve is flared outwardly and then tapered inwardly to facilitate entry into a string of tubing or the like. The other end of the elastomeric sleeve is bonded to the outer surface of the metal part.

Abstract: For use in oil tools which are adapted to be run travelling relatively upwardly or downwardly in drill pipe for removing mud in the drill pipe, an improvement which incorporates a swab cup which flares out to contact the side wall of the pipe for the purpose of wiping it clean. It incorporates a rubber tubular body which is clamped in a slidable position on a support mandrel. The cylindrical body is tubular and concentric with the mandrel. The swab cup flares outwardly and has an exposed, external wiping lip. The external lip is shaped and dimensioned to contact the surrounding wall. This enables it to wipe the wall clean. The lip is connected to some elongate support members, typically straps which have a sizeable width which collectively extend from the lip to an encircling sliding collar. The collar slides along the support mandrel. The range of travel of the collar is limited by a shoulder preferably incorporated in the support mandrel.

Abstract: Disclosed is an improved cementing basket for use in cementing the borehole of oil wells or gas wells. In some of the conventional cementing baskets metal slats are used to form the rigid part of the basket petals. The basket of this invention utilizes a wire loop, such as steel spring wire, for the rigid member of the basket petal.

Abstract: A system is disclosed, suitable to suppress the discharge pipe string in a deep-well vertical pump. In said system, a top seal is provided located at the top end of the well to hermetically seal the well's wall and form a duct towards the discharge mouth of said well; another seal being located in a cooperative relationship to the upmost impellent device and to the inner wall of the well, in order to allow for the well's wall portion comprised between said both seals to operate as the discharge tubing; said seal being proportional to the fluid pressure inside said wall portion.