Abstract: A washer game includes a playing board of a generally rectangular configuration having side and end surfaces extending upwardly above the plane of the playing board surface. Pocket means adjacent, but spaced from each end of the game board playing surface is provided which pocket means include openings of a predetermined size and configuration adjacent but spaced from each end of the game board playing surface. Washer shooter means are provided for mounting adjacent each end of the game board surface with spring tensioned washer support means whereby a washer may be placed on the support means and the support means pulled against the spring and thereafter released so that the tension in the spring throws a washer on the surface of the game board surface in any of various predetermined angles in relation to the game board surface to try to place the washer in one of the pocket means on the game board surface.

Abstract: A casing is secured in a well bore in the earth's surface. A liner is secured to the casing and extends downwardly from the casing with an upwardly open receptacle forming part of the liner and facing up in the casing. The liner is provided with a recess and a retrievable landing nipple having recess means therein is secured in the recess in the liner. A production string is arranged in the casing and sealably and slidably engages within the upwardly open receptacle. Retrievable plug means can be moved down through the production string and seated in the landing nipple therebelow to close off flow between the liner and production string for carrying out desired operations in the well bore above the plug without killing the well, or retrievable instrument means can be run through the string and seated in the landing nipple without interfering with flow from the formation.

Abstract: First and second separate one-way acting hydraulic jar sections each include inner and outer telescopically arranged tubular members with means for connecting one end of each the inner and outer tubular members of each jar section in the drill string. Spaced seal means between the inner and outer tubular members form a chamber in each jar section for confining hydraulic operating fluid.Hydraulic jar means are formed by cooperating means on the inner and outer tubular members within each operating fluid chamber. The cooperating means is spaced axially and disengaged in each fluid chamber when the drill string is in tension and compression during rotary drilling operation to inhibit damage and wear thereto. The hydraulic jar means in the first jar section is constructed to deliver an up jar and the jar means in the separate second jar section is constructed to deliver a down jar to the drill string.

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 and then connected at its other end with any suitable power source to exert a pull on the cable and elevate the mast support, mast and setback tower to an upright position on the base means where the mast may be secured in upright position.

Abstract: The low side of a well bore drilled by a rotary drill string with a drill bit thereon is instrumentally determined as to direction and inclination. An eccentric tubular member is rotatably supported on the drill string and is provided with projection means extending beyond the drill bit diameter and lowered into the well bore. The eccentric tubular member rotates so that the heavy side thereof rests on the low side of the well bore and positions the projection thereon in a predetermined circumferentially spaced and angular relationship relative to the low side of the well bore so that the projection engages the well bore wall during drilling operations and urges the bit laterally of the well bore.During drilling operations, the projection means assumes authority over the drill bit since it extends beyond the diameter of the drilling bit and thus positions the drilling bit laterally in the well bore in a predetermined manner as the drill string is rotated to drill the well bore.

Abstract: A quick opening closure arrangement for controlling flow from a well formation into a tubular member which may be opened by dropping a rod or the like into the tubular member adjacent the earth's surface wherein closure means are provided for closing off the tubular member from the well formation as the tubular member is positioned in the well. Sleeve means support the closure means to close off flow into the tubular member from the well formation and releasable means releasably secure the sleeve means within the tubular member which releasable means is constructed and arranged to enable the sleeve means to shift longitudinally within the tubular member when a rod dropped into the tubular member from the earth's surface impacts thereagainst whereupon the closure means moves to open the tubular member for receiving flow from the formation.

Abstract: A first wheeled trailer means includes support means for supporting a mast and drawworks thereon and a second wheeled trailer means includes an upright structure for supporting the mast in upright positon to conduct well operations. The second trailer means also includes ramp and platform means to receive and position the first trailer means thereon in elevated position whereby the mast may be pivotally engaged with the upright structure of the second trailer means so that thereafter the mast may be raised to an upright position for conducting well operations. The first and second trailer means also include cooperating means to position and secure them together to form a base substructure support for the elevated mast and the drawworks while the well operations are performed.

Abstract: Caking of potassium chloride and sodium chloride in the particle size range of 20 mesh and finer is inhibited by adding one or more alkaline earth or multi-valent metal salts of lignosulfonate in an amount by weight within the range of about 1% to about 20% to the potassium chloride or sodium chloride.

Abstract: A method and apparatus for cutting and recovering tubular and associated well equipment submerged in a water covered area including the steps of lowering a well string including a cutting tool, a swivel and a releasable spear in a water covered area to seat the swivel on the well equipment to thereby position the spear above the well equipment and the cutting tool within the equipment to be cut and pulled, actuating the cutting tool to sever the well equipment, lowering the well string and then raising it sufficiently to unseat the swivel from the tubular and associated well equipment, and then lowering it again to telescope the swivel and releasable spear within the severed well equipment, and actuating the releasable spear to engage the severed well equipment for retrieval by pulling the well string out of the water covered area.

Abstract: A casing scraper includes an elongated hollow mandrel with upper and lower longitudinally, circumferentially extending receptacles. Scraper blade means formed by a plurality of longitudinally and circumferentially extending scraper blades are provided in each receptacle with resilient means tending to urge each of the scraper blades radially outward from the mandrel. The upper receptacles are circumferentially offset relative to the lower receptacles so that the scraper blade means in the upper receptacles overlap the scraper blade means in the lower receptacles. Hold down rings are provided adjacent the upper end of the upper receptacles and the lower end of the lower receptacles for retaining the scraper blade means in the receptacles and the hold down rings are provided with a cutting metal surface adjacent an end of each ring. A ring fits about the mandrel between the upper and lower receptacles to further aid in retaining the spring loaded blades in position on the casing scraper.

Abstract: A nondamaging work over and completion fluid having water soluble bridging agents includes a saturated brine solution having at least one water soluble salt which is insoluble in the saturated brine solution and having particle size range of about 5 microns to about 800 microns and wherein greater than about 5% of the particles are coarser than 44 microns. Viscosifier and suspension additive is added to provide the desired viscosity and assist in maintaining the water soluble sized salt suspended in the saturated brine solution. If desired or necessary a fluid loss control agent may be added to enhance the fluid loss control or filtration control of the completion fluid.The invention may be practiced by pumping or discharging the fluid or a slug or pill of the fluid into an oil, gas, water, injection or storage well where operations are to be conducted in which it is desired to temporarily plug the permeable zone while such operations are carried out.

Abstract: A heater includes a first housing which forms a fuel reservoir and a base support to maintain the heater in an upright position. A first elongated hollow or tubular member is secured to the top of the first housing with its lower end communicating with the interior of said first housing and extends upwardly therefrom. A second housing is mounted on top of the first housing and is provided with opening or port means to communicate the top of the first housing with the second housing. Port means in the second housing also communicates the second housing with the first elongated tubular member. A second elongated, hollow or tubular member is mounted on the second housing and extends upwardly therefrom. Its lower end communicates with the top of the second housing for communicating air to the second housing. Valve means are provided in each the first and second elongated hollow members for selectively controlling communication therethrough.

Abstract: A nondamaging work over and completion fluid having water soluble bridging agents includes a saturated brine solution having at least one water soluble salt which is insoluble in the saturated brine solution and having particle size range of about 5 microns to about 800 microns and wherein greater than about 5% of the particles are coarser than 44 microns. Viscosifier and suspension additive is added to provide the desired viscosity and assist in maintaining the water soluble sized salt suspended in the saturated brine solution. If desired or necessary a fluid loss control agent may be added to enhance the fluid loss control or filtration control of the completion fluid.The invention may be practiced by pumping or discharging the fluid or a slug or pill of the fluid into an oil, gas, water, injection or storage well where operations are to be conducted in which it is desired to temporarily plug the permeable zone while such operations are carried out.

Abstract: A method of forming a composite rod having tungsten carbide particles embedded in a matrix comprising the steps of washing the tungsten carbide particles, placing a predetermined quantity of the carbide particles in a graphite mold, heating the mold and the carbide particles to a range of about 300.degree. to 500.degree. F. and pouring a water solution of flux in the mold while maintaining the temperature whereby the water boils off and the flux coats the surfaces of the carbide particles, placing a matrix in the mold and applying a multi-flame heat to the mold and carbide particles while stirring the particles in the mold with a graphite rod to assist in intimate contact and bonding of the melted matrix with the carbide particles to form a composite rod. The composite rod is then boiled in a weak solution of sodium hydroxide, rinsed and polished by buffing with wire bristles.

Abstract: A hollow member having a closed end and an open end is provided with a projection adjacent but spaced from one end thereof with a flange or laterally extending portion to enable the hollow member to be secured on a ledge such as a car door handle, ash tray or the like. A handle is secured to the member and an open end plastic bag or liner is positioned in the hollow member with a body of cellular material conforming with and contained therein.

Abstract: A double safety latch includes a housing with first and second lock means carried thereby. The second lock means is mounted in axial alignment behind the first lock means in the housing with restraining means engaging the second lock means to restrain actuation thereof. Closure or blocking means are associated with the first lock means for blocking access to the second lock means and the restraining means. Actuating means is provided to engage and remove the blocking means from the first lock means for then accommodating access of the actuating means to the restraining means to disengage the restraining means from said second lock means to enable said actuating means to unlock the second lock means.

Abstract: A first and second mobile trailer means are secured together for forming a base substructure support for a mast, setback tower and drawworks. A working floor is provided in elevated position above the base substructure support when the mast, setback tower and drawworks is in position to conduct well operations. The telescoping mast and setback structure is pivotally carried on the first trailer means and a drawworks is pivotally carried by the second trailer means. A power and rig up arrangement is provided to elevate in a desired sequence the mast, setback structure and drawworks to a desired position for securing on the base substructure support formed by the first and second trailer means for conducting well operations.

Abstract: A lock screw arrangement for a lateral passage which intersects the longitudinal bore of a pressure vessel, wherein the lateral passage includes a first shoulder facing toward, a second shoulder facing away from the bore, includes a shaft for extending through the lateral passage with threads intermediate the inner and outer shaft ends. The inner shaft end is formed to provide a surface for engaging a member to retain it in the bore and an annular shoulder facing the first shoulder within the lateral passage. Packing abuts the second shoulder and surrounds the shaft. A nut is externally threaded for engaging with threads in the internal passage, and internal threads for engaging with the threads on the shaft whereby the nut may be engaged against the packing to seal between the passage and shaft.Seal means are carried by the nut for engaging adjacent the outer shaft end to isolate the internal nut threads and shaft threads from the environment and from internal pressure in the vessel.

Abstract: A flow choke filter for use with oil and gas wells wherein the flow choke has a sized passage for restricting fluid flow from a well and is seated in a housing that has an inlet for conducting well fluids to the inlet of the sized passage and an outlet for discharging well fluids from the flow choke sized passage and the housing, said filter having an elongated hollow body which is closed at one end and open at the other end. The hollow body is provided with an exterior surface in which recesses are formed with a longitudinally extending space between the recesses, such longitudinal space forming a surface between each recess which projects outwardly relative to the recesses in the body. A plurality of openings are provided in the bottom of the recesses for receiving flow from the well and conducting into the hollow body.