Abstract: A kickover tool of the 90-degree type for installing well flow control devices in and removing such devices from offset receptacles of side pocket mandrels in wells, the kickover tool having a body, and a pivot arm, with tool carrier means attached thereto, pivotally mounted on the body for relative movement between aligned, kickover, and retracted positions, the kickover tool additionally including means not only for releasably retaining the pivot arm in aligned and kickover positions but also in retracted position.

Abstract: Pressure equalizing means for well tools having a tubular housing and an operator tube movable longitudinally therewithin, there being provided a valved bypass passage in the housing and a shoulder on the operator tube for engaging and opening the valve of the valved bypass passage upon longitudinal movement of the operator tube in the housing, the equalizing mechanism further including a pair of seal rings sealing between the housing and the operator tube above and below the valved bypass passage in the housing and a lateral passage in the wall of the operator tube normally above the pair of seals but movable under no-flow conditions with the operator tube to a position between the pair of seals prior to the operator tube shoulder contacting the valve of the bypass passage, thus avoiding damage to or flow cutting of the seals which normally form a secondary seal to provide bubble-tight integrity even if the valve in the bypass passage does not seal bubble tight.

Abstract: A side pocket mandrel having an orienting sleeve therein with improved guide surfaces for more reliably orienting a kickover tool with respect to the mandrel preparatory to installing a flow control device in or removing such a device from the mandrel's offset receptacle bore.

Abstract: A ported sliding sleeve valve for use in a well tubing to provide a lateral flow path for transfer of fluids between the tubing and the annulus exterior thereof, the lateral ports of the device being initially closed by a port closure sleeve which is movable to port-opening position by increasing the annulus pressure to a level exceeding tubing pressure by a predetermined value, the port closure sleeve moving to fully open position upon being released and afterwards remaining in this position while the lateral ports of the device are thereafter opened and closed by shifting a built-in sliding sleeve valve through use of a shifting tool run and operated via wireline or pumpdown tools in a manner well known in the industry.

Abstract: A high-strength side pocket mandrel for high pressure service having a full-opening bore throughout its length but having a bore of keyhole shape above its receptacle bore to provide minimal but ample space for operation of a kickover tool for installing devices in the receptacle bore and providing strengthened walls for withstanding greater forces which would tend to burst or collapse the mandrel.

Abstract: A side pocket mandrel for use in gas lift wells and having a sleeve valve in its side pocket receptacle for closing the receptacle's lateral ports when no flow control device is disposed therein. The sleeve valve is latched in its port-closing position but is readily displaced to its open position when a gas lift valve or other flow control device is installed in the receptacle. When the flow control device is withdrawn from the receptacle, the sleeve valve is returned to its closed position, there being provision for automatically coupling the sleeve valve and flow control device together in end-to-end relation in response to the flow control device being installed in the receptacle and for automatically uncoupling them in response to removal of the flow control device from the receptacle. The seals carried by the flow control device seal in the same bore in which the seals of the sleeve valve engage and are, therefore, equal in diameter.

Abstract: A combination well flow control device having a passage therethrough for conducting fluids from the exterior to the interior of the tubing, this device having pressure responsive valve means therein for controlling flow of fluids such as well treating chemicals through the flow passage at very low rates and also having a bypass passage which is initially closed by a sleeve valve but which is openable to permit high injection rates therethrough as for injecting water or the like fluid into the tubing at a very high rate as for killing the well. When the sleeve valve has been moved to bypass opening position, the valve flow passage is short-circuited through the bypass, and in one embodiment that portion upstream of the sleeve valve is shut off. After the sleeve valve has been moved to open position, it will remain at that position. The device also includes a check valve for preventing backflow therethrough regardless of whether the bypass is open or closed.

Abstract: An improved pipe wiper and cup therefor having at least one cup-like wiper lip which is strengthened by a plurality of radial webs which tend to keep the wiper lip from turning wrong side out, the wiper lip also having a plurality of external annular ridges whose diameters correspond to conventional pipe sizes so that the lip can be trimmed to proper size before use leaving an external ridge on the outer edge of the lip to enhance the wiping efficiency of the lip.

Abstract: An improved side pocket mandrel having a body comprising a one-piece main body section in which a main bore and a receptacle bore extend longitudinally therein and an upper body section having space therein for operating a kickover tool, welded together with a circumferential weld. In another embodiment, the machined main body section is welded by circumferential welds between upper and lower body sections. Additional embodiments are further disclosed having means therein for orienting kickover tools which are run and manipulated by wire line or pump down techniques and also having deflectors therein for deflecting regular well tools back into the main passage when approaching the receptacle from above and yet guiding flow control devices into the receptacle when such device is moved laterally into alignment with the receptacle by a kickover tool. Some disclosed embodiments have check valve means controlling flow between the exterior and the interior thereof.

Abstract: A device for guiding the lower end of a pipe string, or the like, past an upwardly facing shoulder in a well in which rotation of the pipe string is prohibited. When the guiding device lodges on such shoulder, the pipe string is lifted and lowered a few times, this reciprocating action actuating an indexing mechanism in the guide tool and causing the lower end of the guide tool to rotate so that a slanted guide surface thereon is brought around to the point of lodging to dislodge the guide tool from the shoulder and guide the pipe string therepast.

Abstract: A kickover tool for installing devices such as gas lift valves in and removing them from the offset side pocket receptacles of side pocket mandrels in wells. Kickover movement of the device carrying means from a longitudinally aligned, running-in position to a laterally offset position for landing or pulling the device is controlled by means actuable by engagement with a shoulder in the well flow conductor during upward movement of the kickover tool. Means for positively locking the device carrying means in the laterally offset or kickover position are disclosed, these means being automatically releasable upon withdrawal of the kickover tool from the side pocket mandrel.

Abstract: A latch for anchoring well tools in landing receptacles such as nipples or side pocket mandrels in well flow conductors, the receptacles having a locking recess providing a lock shoulder which may be fully annular or only 180 degrees in extent. The latch includes a housing having windows in the wall thereof and a locking lug in each window movable both radially and axially of the housing to engage and disengage the receptacle lock shoulder. A spring biases the lugs downwardly. A lock sleeve slidable on a central core normally holds the lugs against inward movement from expanded locking position and has a recess in its outer surface which allows the lugs to move up and retract thereinto to pass obstructions in a well, the spring returning the lugs to expanded position as soon as such obstruction has been passed. Shearing a pin permits the lock sleeve to be lifted to a position to allow the lugs to retract freely.