Abstract: A method of using a bowl protector assembly includes lowering the bowl protector assembly with a running and retrieving tool into a wellhead located at a surface of a well, whereby a removable upper module of the bowl protector assembly is damaged, wherein the bowl protector assembly comprises the removable upper module and a lower module and the removable upper module comprises tool engagement features to pair with the running and retrieving tool. The method further includes raising the bowl protector assembly out of the wellhead and replacing the damaged removable upper module with an undamaged removable upper module. The method further includes lowering the bowl protector assembly comprising the undamaged removable upper module with the running and retrieving tool into the wellhead and placing the bowl protector assembly on a load shoulder within the wellhead.

Abstract: A wearable sleeve to protect a sensor coupled to an object. The wearable sleeve having an axial axis, a longitudinal axis substantially perpendicular to the axial axis, a first wearable sleeve end and a second wearable sleeve end opposite the first wearable sleeve end. A first ring coupled to the first end of the first wearable sleeve end and a second ring coupled to the second wearable sleeve end. The first ring and the second ring have the same expansion properties as the object.

Abstract: A carrier for connecting a tool to the outside diameter of a tubular member. The carrier is a sleeve made up of first and second sleeve sections which encircle a tubular member to form a substantially complete sleeve. The sleeve is threaded on each end and there is a threaded collar received on each threaded end of the sleeve. Since the sleeve sections are formed by threading a tubular member at opposite ends, and then splitting the tubular member, when the sleeve sections are placed in surrounding relationship to the pipe, there will be at least one gap between the sleeve sections.

Abstract: A system to protect a downhole antenna from fluid penetration, in some embodiments, comprises a collar; a bobbin antenna, mounted on the collar, including multiple coil slots on an outer surface of the bobbin antenna and including one or more intra-bobbin wireways between at least one of the coil slots and an outlet of the bobbin antenna; and a collar wireway that is dedicated to the bobbin antenna.

Abstract: A restrictor device for controlling a return flow of drilling fluid from a borehole where drilling fluid is provided from a surface installation via a drill string to a bottom-hole assembly is disclosed. Drill pipes forming the drill string are provided with pipe joints including enlarged-diameter pipe portions. An annulus is formed between a riser and the drill string. The annulus is in fluid communication with a drilling-fluid flow path. The restrictor device is arranged in the annulus. The restrictor device includes a restrictor pipe anchored to the riser and surrounds at least one restrictor element placed on an intermediate pipe portion that connects two enlarged-diameter pipe portions. The length of the restrictor device exceeds the largest distance between two consecutive restrictor elements. The restrictor element is a drill-pipe/casing protector with an external diameter larger than a diameter of the pipe joints.

Abstract: The invention relates to a rotary drill stem component for exploration of a hydrocarbon well with drilling mud in movement around the component from a bottom of the well towards the surface. The drill can include a central tubular element having an axis of revolution and extended on either side respectively by a first and a second tool joint each respectively and successively including a first cylindrical portion connected to the tubular element, a second tapered portion, a third cylindrical portion with a radius greater than that of the tubular element. The drill can include a threaded end which can connect the component to another component, the component including a first shell provided with one or more functional zones, the first shell being mounted on one of the tool joints in a cohesive and removable manner.

Abstract: A downhole tool including a body configured to be positioned on an outer surface of a tubular. A flexible member may extend circumferentially around the body more than once. The body may be positioned radially-between the outer surface of the tubular and the flexible member, and a tension force on the flexible member may cause the flexible member to apply a radially-inward gripping force on the body and the tubular.

Abstract: A wireline standoff that may ameliorate the effects of wireline cable differential sticking, wireline cable key seating, and high cable drags by reducing or eliminating contact of the wireline cable with the borehole wall during the logging operation. An embodiment includes a wireline standoff. The wireline standoff may comprise a pair of opposing assemblies. The opposing assemblies may each comprise a half shell, a cable insert configured to be disposed in the half shell, and external fins coupled to the half shell. The wireline standoff may further comprise one or more fasteners configured to couple the opposing assemblies to one another.

Abstract: A joint connecting a pair of members rotatable about a common axis end to end includes a first member having a threaded end portion and a non-circular exterior surface rearwardly of the threaded end portion, a second member having a threaded socket wherein the threaded end portion of the second member can be engaged, and a non-circular exterior surface, a ground engagement sleeve having a non-circular profile on an inner surface thereof whereby the sleeve can be slidably mounted on the non-circular exterior profiles of the first and second members when such profiles are brought into alignment by rotation of one member relative to the other in a manner effective to pass torque from one member to the other by means of the non-circular profiles, a first pair of alignable holes in the sleeve and first member to receive a fastener to secure the sleeve to the first member and a hole in the second member penetrating the threaded socket and positioned to receive a fastener to secure the second member to a third membe

Abstract: Roller standoff assemblies and devices facilitate disposal of an interior tubular member within an exterior tubular member. Roller standoff devices include a roller cage and at least one roller supported by the roller cage to contact and roll upon the exterior tubular member.

Abstract: Shrinkable sleeve stabilizers formed around the outer surface of a pipe to enhance position stability of the pipe when operably positioned within a well bore and related methods, are provided. The shrinkable sleeve stabilizer according to an embodiment of the invention includes a plurality of elongate stabilizer blades shaped and configured to connect around an outer diameter of the pipe, and a shrinkable sleeve sized to wrap around an outer surface of the each of the plurality of stabilizer blades when connected to the outer diameter of the pipe to immobilize each of the plurality of stabilizer blades when activated.

Abstract: Clamp for a sample bottle assembly. At least some of the illustrative embodiments are apparatuses including a first drill collar section. The first drill collar includes: a first outer surface; a pocket accessible through an aperture in the first outer surface; a bottle assembly disposed within the pocket; and an intermediate clamp coupled to the first outer surface and spanning the pocket, the intermediate clamp at least partially retains the bottle assembly in the pocket, and the intermediate clamp has an axial length less than an axial length of the bottle assembly.

Abstract: A threaded element for connection with a housing of an earth boring device includes a body having an inner bore and a slot. The slot extends inwardly from a perimeter of the body and terminates in the inner bore of the body. The body of the threaded element has a receptacle in the area of the slot for insertion of a locking bolt, with the body having an outer diameter which undergoes an enlargement, as the locking bolt is inserted in the receptacle. The body has an outer thread for threaded connection with a housing.

Abstract: An assembly and method for protecting a pipe string movable within a wellbore. A generally annular body (56) is internally dimensioned to fit around said pipe string, and an outer sleeve (62) formed from at least two part-annular sections (58,60) and rotatably located over the annular body (56). A pair of substantially annular clamping means are adapted to restrict longitudinal movement of the body (56) and outer sleeve (62) relative to the pipe string, each clamping means comprising a one-piece clamping ring (70) and a fastener (74) adapted to tighten the clamping ring (70) around the pipe string. The body (56), outer sleeve (62), and clamping rings (70) may be formed from one or more sacrificial materials that can break up and be circulated out of the wellbore.

Abstract: Coiled tubing spears for retrieving a section of cut coiled tubing comprises a mandrel having attachment members, e.g., spears, at upper and lower ends for facilitating connection of the upper end of the mandrel to a spooled section of coiled tubing and the lower end of the mandrel to a section of cut coiled tubing disposed in a wellbore. Coiled tubing spears comprise one or more centralizers that are releasably secured to the mandrel. The centralizer(s) facilitate lining up a lower attachment member, or spear, with the bore of the section of cut coiled tubing so that the mandrel can be secured to the cut coiled tubing for retrieval. During retrieval of the cut coiled tubing, the centralizer(s) are released from the mandrel so that the mandrel and attachment members can continue through an injector head.

Abstract: Apparatus and methods are provided for reducing drilling vibration during drilling with casing. In one embodiment, an apparatus for reducing vibration of a rotating casing includes a tubular body disposed concentrically around the casing, wherein tubular body is movable relative to the casing. Preferably, a portion of the tubular body comprises a friction reducing material. In operation, the tubular body comes into contact with the existing casing or the wellbore instead of the rotating casing. Because the tubular body is freely movable relative to the rotating casing, the rotating casing may continuously rotate even though the tubular body is frictionally in contact with the existing casing.

Abstract: In a tool having an inner member supported within an outer member, wherein the tool defines a longitudinal axis, a device is provided for preventing relative rotation of the inner member and the outer member. The device is comprised of a locking mechanism and a locking actuator. The locking mechanism is positioned between the inner member and the outer member, wherein the locking mechanism is movable longitudinally between a first locking mechanism position in which the inner member and the outer member are disengaged and capable of relative rotation and a second locking mechanism position in which the inner member and the outer member are engaged and not capable of relative rotation. The locking actuator causes the locking mechanism to move longitudinally.

Abstract: A tool for reducing torque on work string, eg for gas or oil production, comprises an upper clamp (2), a lower clamp (3) and connection means (4), the three components formed as a unitary structure (1). The tool also comprises bearing means, preferably made from an elastomeric compound, and an annular body (7) (see FIG. 4) held in place over the connection means by the clamps. The clamps may comprise spigots (5) for retaining the connection means. In a preferred embodiment the annular body is in two semi-annular components connected at one end to allow them to pivot, and the other end comprises mating castellations for receiving a fastening pin. The annular body may comprise a number of replaceable wear pads (14) which may be made of bronze or an elastomer. The unitary structure of the tool enhances the integral strength and efficiency of the clamps.

Abstract: A spring centralizer device for supporting a tubular member spaced from the wall of a bore is made from a single piece of boron steel material. The spring centralizer device has first and second collars spaced apart along a longitudinal axis. Spring bow portions extend between the collars. As the device is made from a single piece of material, the material extends seamlessly from each collar portion through the bow portions so that there are no joins or points of weakness. Use of boron steel means that the device can be made by cold forming.

Abstract: A method and apparatus, for deploying a sensor attached to tubing in a highly deviated or horizontal wellbore, that are characterized by a stationary attachment system that securely fixes a sensor to a tubing string such that the sensor is coupled to the casing regardless of the orientation of the tubing within the wellbore. One preferred embodiment includes a clamp assembly that encloses the sensor and clamps around the cubing string. The clamp assembly further includes a plurality of contact members that provide stable contact points between the well casing and the clamp assembly. The embodiments of the present invention act to maintain the sensor in a stable coupling with the casing without any actuation required for installation.

Abstract: A tool for reducing torque on work string, eg for gas or oil production, comprises an upper clamp (2), a lower clamp (3) and connection means (4), the three components formed as a unitary structure (1). The tool also comprises bearing means, preferably made from an elastomeric compound, and an annular body (7) (see FIG. 4) held in place over the connection means by the clamps. The clamps may comprise spigots (5) for retaining the connection means. In a preferred embodiment the annular body is in two semi-annular components connected at one end to allow them to pivot, and the other end comprises mating castellations for receiving a fastening pin. The annular body may comprise a number of replaceable wear pads (14) which may be made of bronze or an elastomer. The unitary structure of the tool enhances the integral strength and efficiency of the clamps.

Abstract: A stabilizing sleeve device for an impact drill bit used in underground drilling operations. The cylindrical tubular device has arcuate keys on a bottom edge for interlocking with keyways in the shoulder of a hammer drill bit and a locking key groove in its top edge.

Abstract: A friction reducing fitting for downhole applications. The fitting has a body portion (3) for securement about a tubular member, the body portion having a pair of apertures (5, 6). A roller (1) is provided, and an axle (4, 11) passing through said roller and said apertures in the body at either end of said roller. The axle is deformed at at least one end to prevent movement of the end of the axle through the aperture in the body.