Abstract: Support means support an upright hopper means and mixing hopper means. Continuous conveyor means extend from adjacent the lower end of the upright hopper means to adjacent the upper end of the mixing hopper means. Motor means move the conveyor means to carry dry bulk material from the upright hopper means to the mixing hopper means, and control means control the amount of material on the conveyor means as it leaves the upright hopper means.Discharge valve means adjacent the lower end of the valve hopper means communicate with liquid conducting means which is provided with an orifice therein which assists in discharging material from the mixing hopper means into the liquid conducting conduit means.

Abstract: Ram bodies mounted in transverse bores of a blowout preventer body with a longitudinal bore therethrough are operable by operating means extending through closures on one end of the transverse bores to move the rams to close off fluid communication through the longitudinal bore in the body and to retract the rams from the longitudinal bore. Removable seal means are provided on each ram body to seal with the transverse bore in which each ram body is mounted. Removable seal means extend diametrically across the front of each ram for sealingly engaging an elongate member in the longitudinal bore when the rams are closed. The removable seal means is retained in position by non-torquing means during use but may be readily replaced when necessary. Self energizing seal means on the ram body sealingly engage the transverse bores.

Abstract: Housing means are adapted to be secured adjacent the upper end of a well bore with latch means supported therein for latching with the fishing neck on the upper end of a wire line tool when it is retrieved from the well bore. The housing means includes release means constructed and arranged to unlatch and maintain the latch means unlatched from the fishing neck on the upper end of the wire line tool when desired.

Abstract: Ram bodies mounted in transverse bores of a blowout preventer body with a longitudinal bore therethrough are operable by operating means extending through closures on one end of the transverse bores to move the rams to close off fluid communication through the longitudinal bore in the body and to retract the rams from the longitudinal bore. Removable seal means are provided on each ram body to seal with the transverse bore in which each ram body is mounted. Removable seal means extend diametrically across the front of each ram for sealingly engaging an elongate member in the longitudinal bore when the rams are closed. The removable seal means is retained in position by non-torquing means during use but may be readily replaced when necessary. Self energizing seal means on the ram body sealingly engage the transverse bores.

Abstract: A liner and a hydraulic liner hanger setting arrangement for setting the liner in a well bore casing includes a setting tool having a tubular mandrel connected in a pipe string to extend through the hydraulic setting arrangement with the liner forming an outer housing surrounding the liner and to form a longitudinally extending annular recess therebetween with one end of the recess exposed to the well bore. Longitudinally extending piston means are sealably engaged in the recess with the piston means having a cone shaped end. Slips are releasably secured to the liner and means are provided to retain and to lock the piston means against premature retraction into the recess. A port in the housing communicates fluid pressure from the mandrel to the housing recess to move said piston means in the recess and engage the cone shaped end thereof with said slips to urge them into engagement with the well bore casing and thus secure the liner in position.

Abstract: A well completion and workover method wherein a subterranean formation is contacted with a high density, nondamaging treating fluid which comprises a saturated, aqueous saline solution with at least one water soluble salt that is substantially insoluble in the saturated saline solution. The water soluble salt has a particle size range of about 5 microns to about 800 microns, and greater than about 5 percent of the particles are coarser than 44 microns to control the pressure in the formation; to bridge and seal off the formation; to avoid particle invasion; and also to minimize fluid loss to the formation. A minor amount of a fluid loss additive is included in the treating fluid to inhibit loss of fluid into the formation and a minor amount of a suspension additive is included in the treating fluid to prevent settling of the water soluble salt particles in the aqueous saline solution. The aqueous saline solution should have a density of at least about 10 pounds per gallon.

Abstract: An arrangement to support a drawworks and drilling mast in elevated position during drilling operations and which also functions to transport the drawworks and drilling mast includes a base support and an elevated support with jacks pivotally conncted to the base support and the elevatable support and extending herebetween. Wheels are mounted on the elevatable support for transporting the base support elevatable support, the drilling mast and drawworks carried on the elevatable support. Brace members are pivotally connected between the base support and elevatable support to retain the elevatable support in elevated position during drilling operations.

Abstract: An apparatus for cold forming stabilizer blades from elongated members by holding an elongated member while being bent or twisted to form a stabilizer blade. A mandrel is provided for receiving first and second sleeves so that a force applied by a toggle arrangement causes the first and second sleeves to rotate in opposite directions to bend the elongated member to form a stabilizer blade.

Abstract: A pulse adder--subtracter difference transmitter to which electrical power is supplied includes first normally open switch means which temporarily closes in response to an event to transmit an electrical pulse, second normally open switch means which temporarily closes in response to an event to transmit an electrical pulse, movement means responsive to the pulse from the first switch means to move in one direction and responsive to the pulse from said second switch means to move in an opposite direction whereby the resulting movement of said means is proportional to the difference between the pulses from said first and second switch means and response means responsive to the resulting movement of the movement means to provide a signal which is proportional to the resulting movement.

Abstract: A tong apparatus for threadedly connecting and disconnecting elongated members is provided with a housing having a slot for receiving members to be connected. A cage support is rotatably carried by the tong housing and includes a slot for aligning with the tong housing slot to receive the members. Cage apparatus are provided in the cage support and include a slot for aligning with the tong housing slot and cage support slot to receive the members with jaws pivotally supported by the cage and having gripping surface apparatus to grip one of the members. Apparatus are provided to rotate the cage support with apparatus to initially restrain relative rotation between the cage and the cage support upon rotation of the cage support, with the cage support and jaw including cooperating apparatus engageable upon rotation of the cage support to urge the jaws into gripping engagement with one of the members.

Abstract: A sectionalized drilling mast, power arrangement and support means therefor includes base means to support the drilling mast means when reclined and when erect.

Abstract: A drill string in a well bore has a mandrel extending longitudinally thereof adjacent the lower end of the drill string with a drill bit connected to the mandrel. Longitudinally extending helical groove means are provided in the mandrel and roller means are supported on the drill string and engaged with the helical groove means. Spring means is supported by the drill string and abuts the mandrel to tend to urge the mandrel longitudinally out of the drill string whereby the bit is urged into substantially continuous contact with the well bore bottom as the drill string is rotated during drilling operations. Valve means are provided for selectively circulating fluids from the drill string to the well bore above the drill bit, and when desired jar means may be incorporated in the drill string to impart an up or down jar thereto should the drill string become stuck or tend to become stuck during drilling operations.

Abstract: A drill string in a well bore has a mandrel extending longitudinally thereof adjacent the lower end of the drill string with a drill bit connected to the mandrel. Longitudinally extending helical groove means are provided in the mandrel and roller means are supported on the drill string and engaged with the helical groove means. Spring means is supported by the drill string and abuts the mandrel to tend to urge the mandrel longitudinally out of the drill string whereby the bit is urged into substantially continuous contact with the well bore bottom as the drill string is rotated during drilling operations. Valve means are provided for selectively circulating fluids from the drill string to the well bore above the drill bit, and when desired jar means may be incorporated in the drill string to impart an up or down jar thereto should the drill string become stuck or tend to become stuck during drilling operations.

Abstract: Telescopable drilling mast means is transportable on and pivotally connected to a first trailer means. Setback tower means is pivotally connected to the drilling mast means and to the first trailer means.Second trailer means are provided with elevatable drawworks support means with drawworks, power source and rotary table thereon which elevatable drawworks support means is transportable on and pivotally mounted on the second trailer means.Means secure the first and second trailer means in end to end relation to position the drawworks support means and drilling mast means in longitudinal alignment, and load bearing means support the first and second trailer means in position on the earth's surface.

Abstract: A valve arrangement includes spherical core means rotatably mounted in a tubular member with operating means connected to the spherical core means and rotatably supported in a lateral opening in the tubular member to open and close the spherical core means for controlling flow through the tubular member. Seal means are provided between the spherical core means and tubular member and between the operating means and the tubular member with the operating means and the spherical core means having fluid passage means to conduct fluid from the tubular member fluid passage to act on the seal means between the operating means and the tubular member to substantially counterbalance the fluid pressure in the tubular member.

Abstract: Surface casing stabilizer and hanger means includes a downwardly tapered and inwardly inclined annular outer surface and a concentric, contoured inner annular surface. The surface casing hanger and stabilizer engages and supports surface casing in a conductor pipe and connects the surface casing to the conductor pipe. In practicing the method, the conductor pipe is first positioned in the earth's surface and a well bore drilled therethrough to the desired depth for receiving the surface casing, which surface casing is then lowered into the well bore. Cement is then discharged through the surface casing to fill the annulus between the surface casing and the conductor pipe. While the cement is soft and before it hardens, the conductor pipe's upper end is cut off at the desired elevation and the surface casing then elevated to enable the surface casing stabilizer and hanger means to be engaged therearound.

Abstract: A method and apparatus for positioning and bonding a liner in a casing in a well bore wherein a pack off bushing is provided between the liner and the well string on which the liner is lowered into the well bore for discharge of a bonding agent through the well string and around the liner in the well bore.The seal or pack off bushing is constructed and arranged so that it may be retrieved after the positioning and bonding operations are completed along with the well string upon which the liner is initially lowered into the well bore.

Abstract: A drill string in a well bore has a mandrel extending longitudinally thereof adjacent the lower end of the drill string with a drill bit connected to the mandrel. Longitudinally extending helical groove means are provided in the mandrel and roller means are supported on the drill string and engaged with the helical groove means. Spring means is supported by the drill string and abuts the mandrel to tend to urge the mandrel longitudinally out of the drill string whereby the bit is urged into substantially continuous contact with the well bore bottom as the drill string is rotated during drilling operations. Valve means are provided for selectively circulating fluids from the drill string to the well bore above the drill bit, and when desired jar means may be incorporated in the drill string to impart an up or down jar thereto should the drill string become stuck or tend to become stuck during drilling operations.

Abstract: Low level base means extend longitudinally on the earth's surface. Drilling mast support means are positioned adjacent and pivotally connected to the base means and setback tower means are pivotally connected to the mast support means and to the base means. Drilling mast means are secured to the mast support means. Lifting frame means are connected to the drilling mast support means whereby said drilling mast support means, mast connected thereto and setback tower means may be simultaneously elevated from a reclined position to an upright position on the base means. Cable means may be secured at one end to the lifting frame means and extended around sheave means on the base means over sheave means on the lifting frame means and under sheave means on the mast support means.

Abstract: A manual tool for feeding refuse to a garbage grinder disposal includes a unitary body with a head portion adjacent one end of the body. The head portion is provided with a plurality of spaced, longitudinally extending recess means to define longitudinally extending ribs between the recess means whereby the tool may be manually grasped. Shaft means extend longitudinally from the head portion and is of a size for inserting in the garbage grinder disposal, and surface means are provided on the end of the shaft means and project therefrom whereby refuse may be engaged by manual manipulation of the tool and stuffed into the garbage grinder. Surface means on the tool limit the extent the shaft means may be inserted in the garbage grinder disposal.