Abstract: A non-ported expanding gate valve and method of use, including an expanding gate assembly and a slotted guide, is fixedly positioned on the valve body and slidably coupled with a gate assembly. The guide has slots of varying widths that are used with a pivoting rocker arm coupled with the gate assembly to adjust the thickness of the gate assembly at the proper timing. The guides perform multiple functions, including: centralizing a rocker arm during opening between seats; collapsing the gate assembly when opening; allowing and controlling expansion when closing; guiding lateral movement during operation of the gate assembly between opposing guides on the sides of a flow passageway; guiding axial movement during operation of the gate assembly between opposing guide side flanges; retaining seats in position when the valve is open; and/or stiffening the guide in a lateral direction to control movement of the gate assembly.

Abstract: The disclosure provides a non-ported expanding gate valve and method of use, including an expanding gate assembly and a slotted guide, fixedly positioned on the valve body and slidably coupled with a gate assembly. The guide has slots of varying widths that are used with a pivoting rocker arm coupled with the gate assembly to adjust the thickness of the gate assembly at the proper timing. The guides perform multiple functions, including: centralizing a rocker arm during opening between seats; collapsing the gate assembly when opening; allowing and controlling expansion when closing; guiding lateral movement during operation of the gate assembly between opposing guides on the sides of a flow passageway; guiding axial movement during operation of the gate assembly between opposing guide side flanges; retaining seats in position when the valve is open; and/or stiffening the guide in a lateral direction to control movement of the gate assembly.

Abstract: Gate valve having a primary seal, actuated by fluid pressure in the flow conduit, for preventing leakage along the gate member on the upstream side of the gate valve and a secondary seal actuated by fluid pressure upon leaking of the primary seal and including a self-actuating relief means to prevent build-up of fluid pressure in the valve body in excess of the pressure in the flow conduit.

Abstract: A system for injecting chemicals into a geothermal well near the bottom of the well bore for optimum efficiency. The system includes a spool assembly with a master valve for control of the geothermal flow and a secondary outlet formed of an angle to permit the chemical injection chamber to be lowered into the well. The secondary outlet is attached to the main spool in such a way as to allow internal thermal expansion while permitting the chemical injection chamber to be fed by capillary tube to the bottom of the well bore. The chemical injection device includes an injection chamber through which the chemical is disbursed and a segmented sinker bar to provide the necessary weight to carry the chamber to the bottom of the well against the geothermal well flow. An annular seal assembly in the spool prevents leaking by being pressure energized by the geothermal production fluid. As a result, production can continue during the chemical injection process.

Abstract: A packing support assembly (10) adapted to be sleeved about a well casing ("C"), or the like, and secured thereto without the need for piercing the casing wall or welding thereto. The support assembly (10) comprises an anchor ring (11) which is sleeved about the casing ("C") and secured thereto by a first fastening means in the form of a plurality of circumferentially located fastening means such as radial bores (22) and set screws (31). The anchor ring (11) is provided with flexible fingers (61) having ridged surfaces (16) which are also adapted to rip the external wall of the casing ("C"). The flexible fingers (61) are wedged inwardly to grip the casing ("C") by means of a retainer ring (71) which is threaded onto the exterior of the anchor ring (11) and provided with an internal wedging surface (75) which is slidably engageable with cooperating wedging surfaces (52) on the exterior of the flexible fingers (61) of the anchor ring (11 ).

Abstract: A steam separator (10) has a generally horizontal baffle plate (18) which separates the separator vessel (12) into an upper steam chamber (20) and a lower water chamber (22). The baffle plate (18) has a central opeing (51) which provides a flow passage to permit steam from the water chamber (22) to rise into the steam chamber (20). A steam outlet (28, 100) is connected to the vessel (12) for discharging steam from the steam chamber (20). The baffle plate (18) has a plurality of openings (62) at the periphery thereof, and each opening (62) has a scoop (60) associated therewith. Each scoop (60) extends over its respective opening (62) and faces in substantial opposition to the direction of motion of the swirling fluid to receive and direct the swirling fluid into the water chamber (22).

Abstract: A bottom outlet cyclone steam separator having a baffle plate (18) which separates the separator vessel (12) into a steam chamber at the top and a water chamber at the bottom. An inlet (24) to the vessel admits an incoming mixture of steam and water in a swirling flow pattern to provide centrifugal action which separates the water from the steam. A plurality of open ended scoops (52) are spaced around the periphery of the baffle plate (18) to direct water into the water chamber through openings (50) of the baffle plate which underlie the scoops.

Abstract: A cyclone type steam separator (10) having a square inlet opening (46) which may be adjusted in size by means of an inlet control device (20). The device includes a rigid body (62) having perpendicular arms which form two sides of the square opening. The other two sides are formed by sliding bars (108 and 110) which are connected slidably with the arms and which overlap with one another to define a stationary corner of the opening. The body may be adjusted to vary the effective length of each side of the opening, with one side remaining on the outer side of the inlet conduit to direct the incoming fluid into the steam separator along the inside surface of the separator vessel.

Abstract: A tool for removing and replacing wing valves or master valves on an operating wellhead under pressure includes an elongated housing with a fluid coupling on one end for connecting to the outlet end of a wellhead valve and a packing assembly extending from the housing through the valve into the wellhead where it seals fluid flow to the valve. A latch on the packing assembly is used to secure it in the wellhead. The housing is equipped with a manipulator to expand and retract the packing and to engage and release the latch. An auxiliary reaming tool is provided for mounting with the manipulator and inserting through the valve to smooth the bore of a wellhead conduit if necessary prior to inserting the packing assembly into the conduit.