Abstract: For use with a wire line supported tool adapted to be run in open hole, a wire line connector to be installed between the wire line and at the top of the tool is set forth. The line moving apparatus of this disclosure preferably incorporates concentric telescoping sleeves with guide slots and cooperative protruding lugs. This apparatus attaches to the top end of a tool which is to be held stationary. This enables the supportive wire line to be continuously moved with stroking motion to thereby prevent pressure differential sticking at key seating the mud cake in the open hole.

Abstract: A fluid restriction tool having a valve closure member which may be moved from a closed position by the passage of a wireline tool and which moves out of the way of a wireline tool upon removal thereof so that the valve closure member may return to its closed position.

Abstract: A bundle of spoolable power supplying and heating cables and at least one weight-supporting strand for forming an assembly for electrically heating or heating and logging a long interval of subterranean earth formations is installed within a well by spooling superposed flat layers of those strands and an interspersed flexible band on a drum substantially as narrow as the layers, while interconnecting the power supplying and heating cables on the drum, and then unspooling the strands into the well while intermittently banding them into bundles and concurrently respooling the flexible band on a different drum.

Abstract: A well test tool for closing a well at a downhole location below the well packer and near the formation to be tested, the apparatus being openable and closable from the surface by tensioning and relaxing the cable or wire line on which it is lowered into the well, the test tool having a lock mechanism which locks automatically upon entering its landing receptacle in the well and is further provided with a releasing mechanism for unlocking the test tool automatically after a present number of open/close cycles have been performed. A bypass landing receptacle is provided which permits high rates of flow during testing. A modified bypass landing receptacle is provided to permit use of the apparatus above the well packer, as in wells having an existing packer therein. Methods of testing wells are also disclosed.

Abstract: A cable head catcher mechanism for use when running tools within a well and which catches the fishing neck of a wire line operated well tool in the event the wire line should become broken due to excessive force as the well tool reaches the upper limit of its travel within the well servicing apparatus. A segmented collet system within a pressure containing housing of the apparatus is operative to catch the fishing neck of a well tool to prevent the tool from falling in the event the wire line cable becomes broken. A sleeve piston is provided which operatively positions the segmented collet within the housing and is hydraulically energized to cause releasing movement of the collet to thus release the fishing neck of the well tool when desired. The mechanism is constructed to allow the cable head and cable to be installed without requiring cutting of the cable.

Abstract: Wireline apparatus for subsea use in which a wireline is fed from a winch mechanism disposed within a housing, through the interior of the housing to a feed tube which engages on a wellhead assembly so that the interior of the feed tube communicates with a drill hole, the housing being in sealing engagement with the feed tube thereby to isolate the winch mechanism and wireline from the ambient subsea environment. The housing and feed tube together preferably form an inverted U and the winch mechanism is disposed with the free end of one arm of the U.

Abstract: For use with a tubing conveyed perforating gun assembly, a wireline manipulated electrically actuated detonator assembly traversing the interior of the tubing is described. In the preferred and illustrated embodiment, a wireline connected with a sinker bar supports the detonator assembly having a sinker bar sub terminating in a taper adjacent to a set of deflectable collet fingers comprising a latch assembly. The collet fingers are deflected outwardly by the tapered surface and are forced into an undercut located above a booster and detonating cord affixed to the tubing conveyed perforating gun assembly for firing the perforating guns.

Abstract: A well heater is installed in a well by spooling electrical cable assemblies for heating and supplying power, in proper sequence, on at least one spooling means, unspooling them and attaching them to a heat- and tension-stable support means as the resulting assembly is drawn into the well by a weight attached to the support means.

Abstract: Long intervals of subterranean earth formations are heated at high temperatures for long times with an electrical heater containing spoolable, steel sheathed, mineral insulated cables which have high electrical conductivities, enabling them to heat the earth formations at a substantially uniform rate of more than about 100 watts per foot at temperatures between about 600.degree. and 1000.degree. C., with a pattern of localized electrical resistances which are correlated with the heat conductivities of the earth formations and the heat stabilities of materials providing power and support for the heater.

Abstract: A method is disclosed for installing and retaining a conductor between a surface terminal and a subsurface location in a drill string used to drill a well. One end of the conductor is lowered into the drill string and is anchored to the drill string of a subsurface location. The upper end of the conductor is taken in from the surface until the conductor is tensioned to a selected amount. The upper end of the conductor is then connected to the surface terminal. As each drill pipe section is added to the drill string to advance the depth of the well, the tension of the conductor is controlled to reduce fatigue failure of the conductor. In one embodiment of the invention, the tension of the conductor is controlled by connecting a conductor section of a selected length between the surface terminal and the upper end of the conductor.

Abstract: Apparatus and method are disclosed for feeding a cablehead assembly into the side of a drill string. The cablehead is passed through a low angle side entrance in a side entry sub into the drill string. A cartridge assembly is seated in the side entrance around the cable to prevent pressure loss through the entry port. The cable is clamped to the outside of the sub to lock the cable in place. The cartridge assembly is thereafter tightened about the cable to seal against pressure loss. A cover plate is secured to the outside of the sub adjacent to the entry port to prevent expulsion of the cartridge.

Abstract: Material is supported on rotatable reel means with one end extending therefrom for connection with a well string for a well bore. Movable means support the portion of material extending between the reel means and well string. Means lower and raise the movable means whereby some of the supported material may be selectively moved into the well bore or removed therefrom along with the well string, if desired, without rotating the reel means on which it is supported during the lowering or removing procedure. Means rotate the reel support means to selectively pay out additional material for movement into the well bore or to reeve material removed from the well bore thereon. Control and actuating means effect operation of the various means as desired. Means support the well string and the material to enable the lowering of the well string and material into, and removal thereof, from the well bore.

Abstract: Apparatus for the control of a well fishing line and operable at a location substantially above the wellhead to enable accommodation of cable mounted well tools, line weights, and the like. The apparatus incorporates a cable engaging drive wheel with a reversible hydraulic motor in direct-drive relation with the drive wheel. A pressure roller is in opposed association with the drive wheel and, through a hydraulic cylinder unit, is manipulable to vary the pressure engagement of the cable with the drive wheel for enhanced control of both the introduction and withdrawal of the cable. Both the hydraulic motor and the hydraulic cylinder unit are operable from a remote control station, normally at ground level, for a continuous monitoring of the apparatus notwithstanding its elevated location relative to the wellhead.

Abstract: A pump-down stinger assembly method for use with a well-logging tool or well bore perforator suspended from a well-logging cable utilizes a stinger adaptor which releasably attaches a length of well-logging cable to the lower end of the stinger adapter and allows the well-logging cable to be retrieved and pulled upwardly through a plurality of sections of stinger, or tubing.

Abstract: The invention relates to a swab hoist for use in conveying crude oil and natural gas having a cable drum and a driving motor for the cable drum.It is the object of the invention to provide a swab hoist of improved properties.This is achieved according to the invention by providing a hydraulic drive for the transmission of force from the driving motor to the cable drum. The hydraulic drive consists of a hydraulic pump driven by the driving motor, a hydraulic motor connected to the cable drum and a control means, in particular a pressure-reducing means, all connected to one another by means of pressure lines.

Abstract: Pultruded reinforced thermosetting resin arcuate sections are wound respectively on spools, the spools are transported to a well site, and the arcuate sections are unwound from the spools and assembled into a sucker rod.

Abstract: A method and apparatus for installing continuous anodes in deep bore holes in order to cathodically protect underground metal structures situated adjacent said bore holes. The system is readily adapted to be used with either replaceable or non-replaceable deep anode assemblies. A continuous anode and at least one associated flexible continuous coiled component are wound around reel means which are mounted adjacent the mouth of the bore hole. Attached to the free end of the component and the anode is a weighted base member which when located in the bore hole pulls the continuous anode and the other continuous component to the bottom of the bore hole. Lowering means are provided to insure that the weight means descend to the bottom of the bore hole at a controlled rate of speed.

Abstract: A wireline apparatus and method has features that prevent the wireline from moving with respect to the drill string due to drill string movement or wave action on the drill rig. The apparatus includes a frame having a wireline pressure sealing device. The pressure sealing device is mounted to the top of the drill string. A drum is rotatably mounted to the frame on the side of the pressure sealing device. The drum is powered by a hydraulic motor and controlled by a remote unit. Wireline is wrapped around the drum and reeved over a sheave which is mounted to the frame near the top of the wireline sealing device. A lift sub is secured to the top of the frame and enables the frame to be lifted by the rig elevators. The frame provides a linkage between the elevators and the drill string to lift the drill string.

Abstract: A continuous length of reinforced plastic ribbon rod is wound on a reel and replaces a conventional oil well sucker rod formed of long sections of steel rods. The reinforced plastic has a high modulus of elasticity, is sufficiently stiff for use in pumping, and has enough flexibility to be wound onto a reel or drum. The reel of ribbon rod is positioned above oil well tubing and the ribbon rod, with an oil pump attached to its free end, is fed into the tubing and lowered to the bottom of the well. The ribbon rod is secured to a surface pumping means, and reciprocating motion is transmitted to the oil pump through the ribbon rod.

Abstract: A side entry apparatus for use in a drill string permits a wireline to be connected with tool apparatus within the pipe and passed to the exterior of the pipe intermediate the ends of the drill string so that sections of pipe may be added to the drill string without interrupting the connection and resulting communication between the wireline and tool apparatus to which it is connected. The side entry apparatus includes a housing having an opening through the wall of the housing. A sealing element is arranged to be positioned about the wireline, between the wireline and the opening. A jacking mechanism is used to compress the sealing element and thereby move it into sealing contact about the wireline.

Abstract: The apparatus and technique are applicable to fluid pressurizing a portion of an elongated hole in the ground when a hollow tubular fluid transmission member is installed lengthwise therein. According to the technique, inflatable closure means are installed in the hole at a site adjacent the distal end portion of the member, and the closure means are inflated to form a fluid seal crosswise the hole at a longitudinal level therein spaced apart from the bottom of the hole. Fluid is charged into the member, and an opening is formed in the fluid seal whereby the fluid can discharge into the space between the level of the seal and the bottom of the hole to pressurize a portion of this space. In some embodiments, means are interposed between the member and the seal to deliver the fluid to the opening in the seal.

Abstract: A method and apparatus for conducting wireline operations in oil and gas wells under blowout conditions is disclosed, wherein a releasable annular wireline blowout preventer is provided, whereby wireline operations may be conducted under normal operating conditions by only using a short riser and a releasable annular wireline blowout preventer. Under blowout conditions, a second riser may be attached to the releasable annular wireline blowout preventer to quickly enable a wireline suspended tool to be safely removed from the well, along with the releasable wireline seal assembly means of the blowout preventer.

Abstract: An apparatus for lifting a blow-out preventer during oil or gas drilling operations includes a base frame which can be manually positioned atop the rotary table of the drilling platform of the drilling rig used to drill the well. The apparatus further includes a pair of winches which can be lowered to preselected positions on the base frame, after positioning the base frame on the rotary table, and secured to the base frame via pins that extend through clevises that are welded to the base frame and through apertured lugs that are welded to the winches and extend into the clevises. The blow-out preventer is lifted by the winches via cables that are wrapped on reels of the winches and passed through the base frame and rotary table to the blow-out preventer to which the cables are attached.