Abstract: Method and apparatus for pressurizing the top of the valve member of a subsurface safety to equalized pressure thereacross and assist in opening the valve. The apparatus includes a chamber filled with fluid under pressure which is admitted in to the space between the apparatus and a valve when landed in the valve to pressurized the valve. A spring loaded prong on the apparatus urges the valve member of the safety valve to open position. A latch is included which will bypass a top landing nipple and land in a second landing nipple. The subsurface safety valve is provided with means for filling its spring chamber with liquid with the valve closed. When the safety valve is open the spring chamber is isolated to protect the chamber from flow of fluids and solids.

Abstract: A valve employing a coupling disk to rotate the valve member so that rotative force is applied to the valve member in a direction away from the seat during opening of the valve and/or in a direction toward the seat during closing of the valve. Closing force is provided by a spring in a dome chamber and a gas charge in the dome chamber. A float valve controls fluid entry into the dome chamber to trap the gas charge therein while permitting the introduction of liquid from a balance-closure assist line to increase the pressure of the gas charge and assist in closing the valve member.

Abstract: Method and apparatus for pressurizing the top of the valve member of a subsurface safety to equalized pressure thereacross and assist in opening the valve. The apparatus includes a chamber filled with fluid under pressure which is admitted in to the space between the apparatus and a valve when landed in the valve to pressurized the valve. A spring loaded prong on the apparatus urges the valve member of the safety valve to open position. A latch is included which will bypass a top landing nipple and land in a second landing nipple. The subsurface safety valve is provided with means for filling its spring chamber with liquid with the valve closed. When the safety valve is open the spring chamber is isolated to protect the chamber from flow of fluids and solids.

Abstract: A tubing guide provides a window for installing or removing equipment on a tubing. The guide has pipe guards which are mounted for swinging movement to and away from support position and provides for easy installation and removal of inserts in the upper and lower beams to which the pipe guards are attached when guiding tubing.

Abstract: A well pump assembly suspended by a cable from the surface. The assembly includes a subsurface safety valve and a packer. The packer is hydraulically set and released.

Abstract: A running tool useful for installing lock mandrels and other subsurface wireline tools in a well bore, the running tool comprising top sub (12), retainer sleeve (14), bottom setting sleeve (16), core (18), insertion sleeve (44) and lockout sleeve (66). Running tool (10) is adapted to set lock mandrel (22) in landing nipple (60) and thereafter be released by jarring up to disengage lock retainer lug (28) from recess (30) in lock mandrel (22) and to disengage locking sleeve lug (32) from recess (34) in locking sleeve (36). Outwardly biased leaf spring (108) and latching lug (112) are provided to lock running tool (10A) in a fully released position. Emergency shear screws (68) and lockout lugs (90) are provided to permit withdrawal of running tool (10) and lock mandreal (22) from the well bore in case of a misrun.

Abstract: An enhanced oil recovery well system and method providing for simultaneous heated vapor or hot liquid injection of usually water into one or more formations in a well through a single conduit. The well system utilizes injection mandrels selected to provide drier steam or wetter steam and hot water to inject for best recovery from a particular formation. One injection mandrel separates and collects wetter steam and hot water from injected steam flow and directs the wet steam and hot water flow through the mandrel while directing steam flow into a formation. The other mandrel has upper and lower means for separating and collecting wet steam and hot water and directs wet steam and hot water flow into a formation while directing steam flow through the mandrel. More than one mandrel may be used for each formation and control means may be installed in either mandrel to control flow into formations. Well systems are monitored and controlled for efficient operation and recovery.

Abstract: A system for handling a reeled tubing including a guide, a shear for cutting the tubing and a tubing injector including upper and lower strippers and guides and an enclosure for the injector. The enclosure in one form excludes sea water in an open bottomed enclosure and the other maintains pressure in a completely closed enclosure.

Abstract: A connector assembly adapted to quickly connect and disconnect tools and stem sections in wireline tool strings. Connector assembly (10) comprises box end (12) and pin end (14) adapted to be slidably engaged and locked by rotating either end 90.degree. relative to the other in either direction. Connector assembly (10) is released by the direct application of manual force to ears (48, 50) of locking plate (38) accessible in flutes (26, 27) of box end (12). Once the locking plate is retracted, pin end (14) is rotated 90.degree. in either direction relative to box end (12) and then withdrawn axially from box end (12). Flats (130, 131) are provided on box end (126) and pin end (128) to indicate relative rotational alignment. Disclosed also are provisions for limiting the rotation of axially spaced lugs (138, 140) before the lugs are axially aligned with annular channels (142, 144).

Abstract: A system and methods for the inspection of a well borehole and the formation around said borehole. The system includes a coiled tubing unit for injecting flexible coiled tubing into a wellbore through a wellhead, a pump and valves for control of injection of fluids such as water, nitrogen, light-hydrocarbons, natural gas, and carbon dioxide through the coiled tubing into the wellbore, and a sensor for visually inspecting and/or acoustically examining the wellbore and a region around the sensor within a slug of fluid injected into the wellbore from the coiled tubing. The method includes the steps of injecting coiled tubing having an inspection sensor into a wellbore to a selected location, injecting an optically transparent or acoustically homogenous fluid into the wellbore through the coiled tubing to form a slug of such fluid around the sensor, and transmitting signals from the sensor representative of well conditions to the surface.

Abstract: Apparatus for pressurized cleaning of flow conductors. The apparatus has a first mandrel and a second mandrel telescoped therein. A cleaning tool can be attached to the second mandrel. Changes in fluid pressure flowing through the mandrels will cause the second mandrel to rotate relative to the first mandrel. Rotation is used to direct fluid jets in the cleaning tool towards different portions of the interior of the flow conductor. Rotation of the cleaning tool can also be used for hydraulic drilling of deposits within the flow conductor.

Abstract: Subsurface safety valves of the tubing and wireline retrieveable types operated by a control fluid responsive annular piston in an annular cylinder sealed at opposite ends by a two-way static and dynamic metal-to-metal seal assembly which includes central Bellville loading washers, a spacer ring on each side of the loading washers, and a Bellville sealing washer at each end of the spacer rings. The metal-to-metal seals are useful in a number of applications requiring the sealing of pressurized spaces between spaced concentric parts.

Abstract: A plug for coupling to the mandrel of a well packer, to convert the packer to a bridge plug, includes an equalizing valve. A fixed component of the plug is an elongated tubular member coupled to the upper end of the packer mandrel and closed at its upper end, and having longitudinally elongated ports in its side walls. The movable component of the plug includes an outer housing for receiving the upper portion of the fixed component and an inner sleeve coupled to the outer housing by means of pins extending through the elongated ports. Seals between the fixed components and the inner sleeve seal the elongated ports in the closed condition of the valve. In the open condition of the valve, ports in the inner sleeve and the outer housing communicate with the elongated ports of the fixed component. The movable component includes a fishing neck attached to the upper end of the outer housing.

Abstract: The present invention discloses a riser connector assembly for connecting two riser members. The riser connector assembly includes connecting means which are remotely activated by a shifting tool. The connecting means includes a latch attached to one riser member and which engages the other riser member, a locking sleeve for holding the latch in engagement, an actuator sleeve for driving said locking sleeve to a position where it holds the latch in engagement, and locking means for locking the locking sleeve in that position. The shifting tool is attached to a tubing string or a line and lowered into the riser. The shifting tool has a first engagement means for engaging and moving the actuator sleeve and second engagement means for engaging and moving the locking sleeve. The shifting tool is used for remotely activating the connecting means in both connecting and disconnecting the riser members.

Abstract: An impingement device in a side pocket mandrel or other downhole tools for injecting a predetermined quality of steam in one or more zones of a formation. The impingement device directs and mixes the laminae of hot fluid and vapor and a valve in a valve pocket controls the flow of steam to the zone from the side pocket mandrel or other downhole tools. Along with the impingement device, a centralizer to guide tools through the impingement device and to cause a pressure change and dispersion of the steam; and an agitation device to amalgamate the steam may be used if further blending is required.