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Pipe Joints Or Couplings > Particular Interface > Tapered > Discontinuous Interface Surface > Threaded (e.g., Drill Pipe Type)

Threaded (e.g., Drill Pipe Type)

Threaded (e.g., Drill Pipe Type) patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

05/08/14 - 20140125053 - Broach style anti rotation device for connectors
A broach style anti-rotation device for connected tubular members is described. In embodiments, the broach tool is inserted into a slot in an outer diameter surface of the pin, and teeth of the broach, which have a successively greater height when moving from the front to the tail of the...

02/20/14 - 20140049045 - Threaded joint for steel pipes
Provided is a threaded joint for steel pipes having high sealability even under a bending load. In the threaded joint, when a pin 3 and a box 1 are threadedly connected with each other, the outer peripheral face of a nose 8 of the pin and the inner peripheral face...

10/24/13 - 20130277963 - Threaded connection for drilling and working hydrocarbon wells
A threaded connection including first and second tubular components, each including a respective male and female end, the male end includes at least one threaded zone on its external peripheral surface and ending in a terminal surface, the female end includes at least one threaded zone on its internal peripheral...

10/10/13 - 20130264819 - Coupling, in particular for connecting anchor rods
A coupling for support members includes a sleeve-like coupling sleeve having screw-in openings that proceed from two opposite sides and are each provided with an internal thread. A radially inwardly directed mounting protrusion is formed between the two internal threads in the screw-in openings on the inner side of the...

07/18/13 - 20130181442 - Threaded joint for pipe
Provided is a threaded joint for a pipe in which scalability, compression resistance, and galling resistance are enhanced. Specifically, a pin nose outer peripheral surface forms an outward convex curve in an axial cross-sectional view; the convex curve is such that a composite R curve, in which a plurality of...

03/21/13 - 20130069364 - Threaded connection
A threaded connection including first and second tubular components including respective male and female ends including a distal surface and a threaded zone. The threaded zone of the male end is threaded into the threaded zone of the female end. The threaded zones include respective male and female threads having...

03/21/13 - 20130069365 - Tapered bore connector
In operation, when the tapered bore connector is fully engaged with a compatible tapered shaft connector having an internally threaded locking collar, the compound cantilevered flange is deflected thereby generating an additional restraining force that dissuades premature disconnection....

12/06/12 - 20120306199 - Tubular component for hydrocarbon well exploration
The invention concerns a tubular component (2) for the exploration or operation of a hydrocarbon well, comprising a pipe body (24) with an axis of revolution (20) extended at at least one of its ends (25) by a first tool joint (23) provided with a threaded end that can connect...

05/17/12 - 20120119490 - Marine riser assembly
A marine riser assembly having a first tubular member having an external surface with a plurality of first axially spaced formations, a second tubular member having an external surface with a plurality of second axially spaced formations thereon, a segmented ring in surrounding relationship to the first and second tubular...

04/26/12 - 20120098256 - Threaded connections and methods
Couplings and/or connections and related methods are disclosed that include a female component engaged with a male component. A first shoulder of the female component abuts a first complementary shoulder of the male component to form a first radial seal. A second shoulder of the female component abuts a second...

03/29/12 - 20120074692 - Connecting oil country tubular goods
Ends of separate tubular members used in oil and gas drilling are connected pin-to-pin by a threaded coupling and made leak tight by an internal pressure seal, wherein the male or field end pin of a first tubular member has an integral geometry designed to mate with the female or...

02/23/12 - 20120043756 - Tubular threaded connection
A threaded tubular connection including a first tube and a second tube is provided. The first tube includes a pin member which extends from an end of a main body of the first tube to a terminal end of the first tube. The second tube includes a box member which...

02/02/12 - 20120025522 - Tubular component for drilling and operating hydrocarbon wells, and resulting threaded connection
The invention concerns a tubular component for a threaded connection, having at one of its ends (1; 2) a threaded zone (3; 4) formed on its external or internal peripheral surface depending on whether the threaded end is of the male or female type, said end (1; 2) finishing in...

01/26/12 - 20120018998 - Non basepipe-welded accessory attachment
A gripping apparatus is provided having a stop collar with an accessory hardware coupled or otherwise attached thereto so as to not weld the accessory hardware directly to a production tubular. The gripping apparatus is adapted to grippingly engage the production tubular for downhole hydrocarbon recovery applications, and the accessory...

11/17/11 - 20110278838 - Tubular connection with self-locking threading used in the oil industry
A threaded connection including first and second tubular components, each including a respective male and female end, the male end including, on its external peripheral surface, at least one threaded zone and finishing in a terminal surface orientated radially with respect to the axis of the connection, the female end...

10/06/11 - 20110241340 - Threaded joint for steel pipes
In a threaded joint for steel pipes comprising a pin (1) and a box (2), each having a threaded portion (11 or 21), a sealing surface (13 or 23), and a shoulder surface (14, 15 or 24, 25), the sealing surface (13) of the pin (1) is formed by a...

09/29/11 - 20110233925 - Threaded joint with elastomeric seal flange
A threaded joint has a seal flange or device in order to avoid the seepage of external pressure of fluid inside the pipe. The sealing flange has an L-shape and is interposed in a housing between a pin and a box, and the flange-like annular portion of the flange helps...

09/08/11 - 20110215569 - Connection between a drill pipe and a connector
A connection between a drill pipe (1) made of carbon- or glass fiber-reinforced plastic and a tubular, preferably metal connector (2) that is partially held in one end (3) of the drill pipe (1) and is cemented to it is characterized in that a thrust element (8) that is positively...

07/07/11 - 20110163538 - Threaded joint for steel pipes
A threaded joint for steel pipes for use in an oil well which has improved galling resistance and which is protected from rusting comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion. The contact surface of at least...

06/23/11 - 20110148103 - Device for protecting a female end of a threaded tubular connection component, having an anti-unscrewing brake
A device configured to protect a female end of a component of a threaded tubular connection for drilling and working a hydrocarbon well, including an internal threading, annular end, and internal surfaces respectively upstream and downstream of the internal threading and respectively having first and second selected orientations. The device...

06/09/11 - 20110133448 - Threaded connection with metal to metal seal capable of expansion
A retaining device for a threaded connection that is expanded holds the connection together to prevent leakage. In a two step thread the retention device is located between the steps and comprises a nose in a groove that holds aligned surfaces together for a metal to metal connection and allows...

06/09/11 - 20110133449 - Threaded joint sealed to internal and external pressures
A threaded joint for joining tubes used especially in the field of OCTG (Oil Country Tubular Goods), such as pipes in gas or oil production and/or casings when drilling wells can include a pin and a coupling, or box, having an end surface not facing against any surface of the...

06/02/11 - 20110127768 - Improved tubing section coupling
A tubing section coupling comprises a first tubular portion and a second tubular portion (18,20) having an external surface adapted to slidingly engage an internal surface defined by the first tubular portion. The first and second tubular portions (18, 20) are axially restrained by means of a fixing device adapted...

04/14/11 - 20110084482 - Conical screw coupling
A screw coupling between two bodies, one having an external screw thread and another having an internal screw thread complementary thereto, which screw threads are superimposed onto two base surfaces monotonously narrowing and widening respectively in the direction of a central axis, the longitudinal section of each of these screw...

03/24/11 - 20110068574 - Pipe connector device
A pipe connector comprises a tubular pin member (1) having a frustoconical outer surface (3) and a tubular box member (2) having a frustoconical inner surface (4) corresponding to the outer surface (3) of the pin member (1) and which overlies the frustoconical surface (3) of the pin member (1)...

02/24/11 - 20110042946 - Threaded joint with high radial loads and differentially treated surfaces
A threaded joint has an interference between thread roots of pin and thread crests of the box of value comprised between 1% and 5% of the average thickness of the connection, and a root to load flank radius R comprised in the range of 0.2 mm and 0.4 mm and...

02/17/11 - 20110037255 - Fatigue resistant pipe string component
A pipe string component that connects an offshore platform with a sea bed is provided. The pipe string component includes a threaded tubular connection. The threaded tubular connection includes a male tubular element including a tapered male threading, and a female tubular element including a tapered female threading that cooperates...

02/03/11 - 20110025050 - Connection system for double-walled pipes
The invention relates to a connection system for double-walled pipes (1, 2) comprising an inner pipe (12, 22) made of a stainless steel and an outer pipe (11, 21) which surrounds the inner pipe (12, 22) and has a greater tensile strength than the inner pipe (12, 22), wherein threads...

02/03/11 - 20110025051 - Threaded joint for steel pipes
A threaded joint for steel pipes comprising a pin (1) and a box (2). The pin has a male thread (11) and a lip (12) which comprises (i) a sealing surface (13) and (ii) a nose portion (16) provided with a shoulder surface. The box has a female thread (21),...

02/03/11 - 20110025052 - Threaded joint for steel pipes
A threaded joint for steel pipes for use in an oil well which has improved galling resistance and which is protected from rusting comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion. The contact surface of at least...

01/27/11 - 20110018262 - Apparatus and method for coupling conduit segments
A method of coupling segments of a borehole conduit is disclosed. The method includes: positioning a first conduit segment at a location selected from a surface location and a downhole location, the first conduit segment having a first end and a second end, the first conduit segment including a pin...

01/20/11 - 20110012347 - Threaded tool joint connection
In another feature of the invention, both the external threads and the internal threads have roots formed in a shape of a portion of a circle....

01/20/11 - 20110012348 - Highly- tight threaded joint
The invention relates to building oil and gas wells and can be used in casing strings and tubings. The inventive highly-tight screw joint comprises internal and external mating elements with conical surfaces. The internal and external elements are provided with a thread. Said thread has supporting and embedded faces. A...

12/23/10 - 20100320754 - Reverse sliding seal for expandable tubular connections
An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a “groove” in a surface of the box member and a corresponding “rib” on the pin nose. The radial...

12/09/10 - 20100308577 - drill pipe system and method for using same
A tubular threaded connection for coupling drill pipe segments to form a drill string is provided. Each of the segments has a tubular pipe body having a wall thickness of >0.5 inches (1.27 cm). The threaded connection comprises a pin end with an external thread, and a box end with...

12/02/10 - 20100301600 - Threaded joint for pipes
In a threaded joint for pipes constituted by a pin and a box, each having a contact surface comprising a threaded portion and an unthreaded metal contact portion, the contact surface of the pin has a solid corrosion protective, preferably transparent coating based on a UV-curable resin and the contact...

10/28/10 - 20100270793 - Threaded joint for steel pipes
A threaded joint for steel pipes comprising a pin 1 having a tapered male thread 11, a tapered sealing surface 13, and an end shoulder surface 14 and a box 2 having correspondingly a tapered female thread 21, a tapered sealing surface 23, and a shoulder surface 24 which is...

10/21/10 - 20100264649 - Threaded joint for pipes having a lubricating coating
A lubricating coating which is free from harmful heavy metals is formed on a premium threaded joint for pipes constituted by a pin and a box each having a contact surface comprising a threaded portion and an unthreaded metal contact portion (a sealing surface and shoulder) in order to provide...

10/21/10 - 20100264650 - Communication connections for wired drill pipe joints
A drill pipe includes a pin end connector, a box end connector, a first communication connector and a second communication connector. The pin end connector includes a first region to form a threaded connection to join sections of the drill pipe together, and the first region includes at least one...

09/23/10 - 20100237612 - Tubular connection floating shoulder ring
A floating shoulder ring is arranged to occupy the J.-space between pin ends of coupled pipe sections. The length of the ring is arranged to allow the pipe connection to approach the specified torque for shoulderless connections before the ring begins to function as an abutment between the approaching pipe...

09/16/10 - 20100230958 - Method and apparatus for coupling expandable tubular members
A method and apparatus for coupling expandable tubular members....

09/16/10 - 20100230959 - Low cost, high performance pipe connection
A low cost threaded pipe connection for virtually any service is provided, that has selectively, unique sealing threads for general use that can be supplemented with a pin nose seal when specified by the user....

07/08/10 - 20100171305 - Threaded tubular connection which is resistant to bending stresses
A threaded tubular connection is provided. The connection includes a male tubular element provided with a male threaded portion and a female tubular element provided with a female threaded portion. The male threaded portion and the female threaded portion each include self-locking threads having a crest, a load flank, a...

06/10/10 - 20100140929 - Rock-drilling equipment as well as female and male parts therefor
The invention relates to a threaded joint for rock-drilling equipment of the type that includes female and male parts that are interconnected via threaded joints. The invention is particularly advantageous in connection with female parts (1) of the type that includes an internal trapezoidal thread in the form of a...

04/22/10 - 20100096850 - Nanostructured alloy coated threaded metal surfaces and methods of producing same
A method for protecting a threaded metal joint from galling and corrosion includes providing a nanocrystalline coating on the metal surface. The nanocrystalline coating can include a solid or liquid lubricant to protect against wear. Threaded metal joint surfaces coated with the nanocrystalline coating can resist galling under high pressure...

04/01/10 - 20100078935 - Threaded joint for steel pipes
Burrs which develop on the incomplete thread at the start of cutting of male threads (1) of a threaded joint and which are a cause of galling when connecting oil country tubular goods are eliminated. In the incomplete thread, the upper portion (11a) of a thread (11) having a pointed...

02/25/10 - 20100045033 - Threaded pipe connection
A long felt need for more reliable and safer pipe threads is provided which teaches (1) how to offset the mismatch of pipe threads that occurs due to elongation of the pin and contraction of the box during assembly; (2) how to prevent separation of mating pipe threads independent of...

01/07/10 - 20100001520 - Pvc pipe coupling
A threaded coupling for connecting a threaded first connecting drop pipe to a second connecting drop pipe. The coupling has a first female end having an enlarged exterior diameter and an interior diameter defining a lead in section which provides strength to resist lateral forces exerted on the threaded drop...

10/08/09 - 20090250926 - Method and system for evaluating groups of threaded connections
A method associated with the selection of tubulars for hydrocarbon production is described. In particular, the method is associated with the evaluation of performance limits of threaded connections. In this method, constituents of an evaluation group of threaded connections are determined via model analysis. Then, physical testing on a first...

09/24/09 - 20090236850 - Threaded joint for steel pipes
A threaded joint for steel pipes having excellent galling resistance, rust preventing properties, and airtightness without using a compound grease comprises a pin and a box each having a threaded portion and an unthreaded metal-to-metal contact portion serving as contact surfaces. The contact surfaces of at least one of the...

07/09/09 - 20090174184 - Working method of the external threaded frp (fiberglass-reinforced plastic) pipe and fitting
The invention discloses an external threaded FRP pipe and fitting, in which the outside surface of the FRP pipe and fitting connecting end is added up with a threaded layer, whereof the outside of the threaded layer is molded directly to external thread. The work method of it is that...