Abstract: A method for transferring heat between two fluids comprises (1) flowing the first fluid in an upright diamond shaped tube, and (2) flowing the second fluid therearound the tube over upper and lower surfaces of the diamond shaped tube formed at an angle to the horizon that is greater than the angle of repose of the second fluid therearound the tube for preventing accumulation of second fluid sediment on top and stagnant gases on the bottom of the tube. A novel heat exchanger tube is also disclosed.

Abstract: A method comprises (1) piping of exhaust steam flow from a down hole steam generator positioned at the top of a petroliferous reservoir down to the bottom of the reservoir, and (2) reversing the direction of hot exhaust steam flow to saturate the complete petroliferous reservoir wall surface with the steam of uniform quality, the steam having uniformity of distribution of both liquid and vaporous phases for improved enhanced oil recovery. A new steam generator is also disclosed.

Abstract: A method as described in the title comprising deflecting the gas from the distributor through nozzles therein through an angle in the range of 30.degree. to 75.degree. for decreased erosion in the nozzles by solids drawn therein and for reduced required power consumption. A new gas distributor with nozzles mounted therein is disclosed.

Abstract: A mechanical or attachment holder and support means for securing a spline driven in a groove for holding down a flexible sheet or filter screen under continually changing temperatures and high pressures comprises, a plurality of 90.degree. angle clips in axial alignment on the spline extending around the periphery of the filter screen with one leg of the clip pressing the spline down and the clip other leg being positioned against a longer side of the groove, and screw inserted through the 90.degree. clip bisecting the 90.degree. angle between of the clip legs for securely fastening the spline and the filter screen under the spline securely to a filter screen holder for resisting the environmental conditions of continually changing temperatures between 200.degree. and 250.degree. F.

Abstract: A few methods for shaping and assembling a highly efficient cyclone separator for the removal of entrained solids from gases comprises basically, among other steps, the novel steps of:(1) attaching a solids-free-gas outlet (74) having an area (O) to the upper portion of the separator housing shaped for receiving solids-free-gas at a velocity in the range of 52 feet per second to 200 feet per second,(2) forming the solids-free-gas outlet area (O) proportional to the separator inlet area (I) in the range of substantially O/I=0.4/1 to 1.0/1.0, and(3) forming the distance (L) from the gas outlet (74) to the solids outlet (70) proportional to the diameter (D) of the cyclone separator cylindrical portion (56) in an amount of L/D=4.49-1.09 (O/I) for providing maximum efficiency with minimum erosion of both the cyclone separator internal housing wall surface and of the separated solids. L/D is about 4.0.

Abstract: A method for collecting a non-pressurized sample of fluid from a well is disclosed and an illustrative sampler for performing the method is shown comprising two elongated sampler chamber interconnected upper and lower valves wherein the upper valve is mounted externally of the chamber and has a vent therein for providing less internal fluid drag in the chamber for improved and faster purging, filling, without subjecting the fluid to high shear rates, and emptying of the sample chamber and for ensuring a non-pressurized true representation sample upon arrival at the surface.

Abstract: A method for forming and assembling a well production and sand screen assembly in a well having a screen therein forming an outer annulus and a wash pipe internally of the screen forming an inner annulus comprising further (a) mounting a high pressure fluid pump means and a valve means on each wash pipe, inner annulus, and outer annulus, and (b) connecting the valve means in fluid communication with the high pressure fluid pump means for controlling the ingress and egress of the high pressure fluids and removed formation material for forming a sand pack in the well and simultaneously for applying and maintaining a positive fluid pressure against the overburden during work in the well for preventing cave-ins and sloughing of the unconsolidated formation well walls until the sand pack is formed.

Abstract: A method for producing a well in an unconsolidated formation by forming a sand pack in the well by applying and maintaining a high positive pressure against the cavity walls to prevent cave-in and sloughing of the formation cavity walls until the sand pack is formed comprises (1) controlling the ingress and egress of fluids and removed formation material from inner and outer annuli with a high pressure wash pipe in the well with control valves in each.

Abstract: A well production system for controlling ingress and egress of high pressure fluid through the annuli formed between the well and a screen support tube internally thereof, and the screen support tube and an internal high pressure wash pipe with valves for maintaining constant high fluid pressure against the overburden during work in the well, as during drilling of an enlarged cavity therein for preventing cave-in and sloughing of the unconsolidated formation well walls until a sand pack is formed and the well producing.

Abstract: A method for improving the combustion in a gun type oil burner, a new circular air plate assembly for a gun type oil burner, and a method for assembling a circular air plate assembly for a gun type oil burner barrel is disclosed. The air plate assembly comprises an inner air plate having a plurality of pairs of holes therein, and an outer adjustable control plate contiguous therewith having a single large hole corresponding to each pair of holes of the inner air plate for forming two incoming columns of high velocity air, one parallel to a centrally positioned fuel nozzle and the other parallel to a spiral around the fuel nozzle for combining and integrating the two incoming air columns into one large outgoing well-mixed turbulent substantially straight column of air for improved combustion by the igniter.

Abstract: A method for the removal of entrained solids from gases in a cyclone separator having a dipleg attached to the bottom thereof comprises the basic steps of, (1) injecting the gases with the entrained solids in an inlet (54) of cyclone separator in the range of substantially 52 feet per second (16 m/s) to 80 feet per second (24 m/s), (2) spinning the injected gases with the entrained solids around and down the cyclone separator to the inlet (70) of the dipleg (34) by a vertical distance (L) below the gas outlet (74) proportional to the diameter (D) of the top of the separator by an amount of L/D=4.49-1.09 (O/I) or about 4, and (3) ejecting the solids-free-gases through a gas outlet (74) in the range of substantially 52 feet per second (16 m/s) to 200 feet per second (61 m/s) having an area (O) in proportion to the area (I) of the separator inlet (54) in the range of substantially O/I=0.

Abstract: A method for forming and assembling an apparatus for testing the minimum pullout strength of a ground anchor for an oil well derrick or other towers (as an antenna or guy line) comprises (1) forming an open ended housing, (2) inserting an elongated means in the open end of the housing, (3) connecting a tension means to the elongated means, (4) circumscribing the elongated means with a compression spring for damping movement of the elongated means, and (5) connecting a restraining means or shear pin of a predetermined strength between the housing and the elongated means so that while applying an increasing load to the elongated means, if the anchor does not move prior to breaking of the shear pin, a safe, satisfactory, and reliable anchor is indicated.

Abstract: Three methods for forming three different, double acting, self-contained swages for joining two small diameter tubes are disclosed. Likewise three double acting small diameter (31/2 inch) combination hydraulic-mechanical swages assembled by the methods are disclosed using hinge arms with indentation tips thereon for deforming and connecting together two small (less than 7 inches or 18 centimeters diameter) telescopic tubes for casing repair or a flow line connection, for example. Two modifications formed by the methods have links connected to the swaging arms so that with increased pivotal movement of the arm and link, a gain results in the mechanical advantage and indentation force.

Abstract: A cyclone separator for the removal of entrained solids from gases, the cyclone separator having a barrel portion and a conical portion which cooperatively define a separation chamber, a gas inlet in open communication with the portion of the separation chamber defined by the barrel portion, a gas outlet tube extending centrally, upwardly from the barrel portion, a solids discharge outlet located at the lower end of the conical section, a solids discharge dipleg conduit in open communication with the solids outlet, the geometric parameters of the separator providing high efficiency with minimal erosion.

Abstract: A double acting, self-contained small diameter (31/2 inch) combination hydraulic-mechanical swage is disclosed using an arcuate guide having sliding contact with pivotal arms over a majority of the length thereof, the arms being pivotable with identation tips thereon for deforming and connecting together two small (less than 7 inches or 18 centimeters diameter) telescopic tubes for casing repair.

Abstract: A method for testing the minimum pullout strength of a ground anchor for an oil well derrick or other towers (as an antenna, guy line, or the like) comprises (1) connecting a housing means to the ground anchor, (2) positioning an elongated means deep in the housing means, (3) inserting a shear pin of a predetermined shear strength through the housing means and the elongated means, and (4) connecting a load applying means to the elongated means for applying the predetermined shear force to the shear pin, so that while applying an increasing load to the elongated means if the anchor does not move prior to exceeding the predetermined tension as indicated by breaking of the shear pin, a safe, satisfactory, and reliable anchor is indicated.

Abstract: A method for securing caulking driven in a groove for holding down a flexible sheet or filter screen under continually changing temperatures and high pressures comprises, a plurality of 90.degree. angle clips in axial alignment on the spline extending around the periphery of the filter screen with one leg of the clip pressing the spline down and the clip other leg pressing against one higher wall of the groove, and screw means inserted through the 90.degree. clip bisecting the 90.degree. angle between of the clip legs for securely fastening the spline and the filter screen under the spline securly to a filter screen holder for resisting the environmental conditions of continually changing temperatures between 200.degree. and 250.degree. F.

Abstract: A new torque drive mechanism is disclosed between a reversible rotatable square bar means for rotating a washer while providing free longitudinal movement of the square rod in the washer, and for providing free passage of liquid therebetween the bar and the washer.

Abstract: A method for collecting a small sample of a lighter medium floating on the surface of a heavier medium in an open topped container comprises lowering an elongated tube into the mediums for forcing the lighter medium up into the elongated tube for testing or the like. A lighter medium collection device for carrying out the above method and a method of assembling a sampling device are disclosed.

Abstract: A method and at least one gas flare for carrying out or practicing the method are disclosed for smokeless burning of undesired gas. Combined with a steam aspirating gas flare having a steam flow controller responsive to a gas flow detector to provide a combustible material is a specific gravity analyzer for controlling the steam flow controller further in relation to the specific gravity of the gas to be burned for providing a smokeless air-to-gas burning mixture in the flare with less steam usage and reduced noise.