Abstract: In the invention a side tracking bit that has a flexible interface between the bit crown and the bit shank which greatly reduces the length of inflexible structure between the face of the bit and the flexible interface. The limiting of the length of inflexible structure between the face of the bit and the flexible point significantly increases the side tracking bit's angle in starting and drilling a curved hole from the vertical to the horizontal and significantly shorten the radius of the curved hole.

Abstract: In the invention a flexible drill pipe comprising a plurality of short tube sections assembled end to end. Each short tube section having the same number and type of saw tooth shaped gear teeth cut around the circumference of each end of the short tube section. The orientation of the gear teeth on each end of the short tube section is such that the gear teeth of the short tube sections will intermesh when the short tube sections are assembled end to end. The plurality of short tube sections assembled end to end carries the torque load of the flexible drill pipe. A tool joint is interfaced on each of the plurality of short tube sections. The end of the tool joints that interfaces with the plurality of short tube sections has the same overall diameter and internal diameter and the same type and number of gear teeth as the short tube section. Wire rope lengths are assembled around and parallel to a hose used to carry drilling fluids through the flexible drill pipe.

Abstract: An improved downhole system for operating a drill bit around a small radius of bend in the directional drilling of curved holes from a vertical well hole in an oil or gas formation. The system is comprised of a plurality of double shaft downhole motors assembled in line and their shafts are connected by a flexible coupling. A flexible assembly encloses the area between the motors and provides a means for drilling fluids to be pumped through the system to a drill bit. The system can be constructed of either electrical motors or fluid turbine motors which can operate from drilling fluids pumped down a drill pipe string.

Abstract: An improved downhole system for operating a drill bit around a small radius of bend in the directional drilling of curved holes from a vertical well hole in an oil or gas formation. The system is comprised of a plurality of double shaft downhole motors assembled in line and their shafts are connected by a flexible coupling. A flexible assembly encloses the area between the motors and provides a means for drilling fluids to be pumped through the system to a drill bit. The system can be constructed of either electrical motors or fluid turbine motors which can operate from drilling fluids pumped down a drill pipe string.

Abstract: The improved core cut off cable provides a means of being cooled and providing fluids for flushing cuttings away from a drilled core being cut off. The improved core cut off cable consists of a wire cable constructed around and along the length of a cylindrical spiral coil of wire rod so the coil of wire rod will support a hollow chamber through the axial center of the wire cable. Abrasive sections are adhered around the wire cable along one end portion of the wire cable and provides cutting surfaces the wire cable supports.

Abstract: According to the invention an improved system for the drilling of small holes from and at right angles to a vertical well hole. The system is directed by a ninety degree elbow attached to the downhole end of a small diameter tube section. The uphole end of the tube section is attached to the downhole end of a large diameter tubing string. A downhole electrical motor operates the drilling part of the system from inside the large diameter tubing string. The drive part of the system which operates the drill bit consists of a pump, which also provides drilling fluids to the drill bit, a small diameter drill pipe, a flexible drill pipe which operates the drill bit from around the ninety degree elbow. An electrical mechanical cable provides power to the electrical motor and hoists the electrical motor and its attachments in and out of the tubing string. An anti-torque mechanism attached to the uphole end of the electrical motor holds the electrical motor in place when the electrical motor is in operation.

Abstract: According to the invention a flexible drill pipe constructed of a closed pitch cylindrical spiral coil of wire rod with a floating core of tube sections constructed the same positioned end to end but not attached through the hollow center of the coil of wire rod to keep the coil of wire rod from collapsing under torsion loads required for a drilling operation. A thin wall hose is laid through the tube sections so drilling fluids can be pumped through the flexible drill pipe during a drilling operation.

Abstract: According to the invention, a process and system are disclosed for conditioning an oil or gas formation and the application of the various stimulating fluids to the oil or gas formation. The method consists of drilling from a vertical well hole a horizontal spiralling hole which spirals out into the oil or gas formation and around the vertical well hole. Other embodiments include the drilling of a horizontal inward spiralling well from a vertical well hole that inwardly spirals out into the oil or gas formation from the vertical well hole, and the drilling of a hole from a vertical well hole that spirals out and coils down through an oil or gas formation around the vertical well hole. The application of this process is contingent on the use of my remote control directional drilling system, U.S. Pat. No. 3,811,519, and my flexible drill pipe pending application Ser. No. 465,500, filed Apr. 30, 1974 on related equipment, now abandoned.