DE1020586B - Screw connection of the wall sleeves for deep boreholes - Google Patents

Screw connection of the wall sleeves for deep boreholes

Info

Publication number
DE1020586B
DE1020586B DEM30371A DEM0030371A DE1020586B DE 1020586 B DE1020586 B DE 1020586B DE M30371 A DEM30371 A DE M30371A DE M0030371 A DEM0030371 A DE M0030371A DE 1020586 B DE1020586 B DE 1020586B
Authority
DE
Germany
Prior art keywords
screw connection
free end
threaded part
sealing surface
connection according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEM30371A
Other languages
German (de)
Inventor
Wilhelm Sommer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to DEM30371A priority Critical patent/DE1020586B/en
Publication of DE1020586B publication Critical patent/DE1020586B/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/08—Casing joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/003—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings

Description

DEUTSCHESGERMAN

Dk Erfindung bezieht sich auf eine Schraubverbindung der Futterrohre für Tiefbohrungen, bei der die Gewindeteile der Rohre mit ineinandergreifenden kegeligen Dichtflächen versehen sind. Sie bezweckt Verbesserungen, wodurch die Wirksamkeit der kegeligen Dichtflächen wesentlich erhöht wird.Dk invention relates to a screw connection of the casing for deep boreholes, in which the Threaded parts of the pipes are provided with interlocking conical sealing surfaces. She aims Improvements, which significantly increase the effectiveness of the conical sealing surfaces.

Bei den bekannten Schraubverbindungen dieser Art ist die Zuverlässigkeit der Abdichtung in erster Linie abhängig von dem Genauigkeitsgrad der Bearbeitung der kegeligen Dichtflächen. Für besondere Anforderungen, z. B. im Falle der Verwendung der Futterrohre in Tiefbohrungen zum Erschließen von Erdgas, bereitet die Kegelflächenabdichtung gegen hohe Gasdrücke gewisse Schwierigkeiten.In the known screw connections of this type, the reliability of the seal is paramount Line depending on the degree of accuracy of the machining of the conical sealing surfaces. For special Requirements, e.g. B. in the case of using the casing in deep boreholes to develop Natural gas, the conical surface sealing against high gas pressures causes certain difficulties.

Es ist bereits vorgeschlagen worden, das Zapfenende durch Verschwächung elastisch zu gestalten, damit es eine radiale Verformungsmöglichkeit erhält und mit der anliegenden Wand abdichtend zusammenwirken kann. Es ist aber bewußt von diesem Weg Abstand genommen worden, da die Rohre beim Transport und auf dem Bohrfeld der Gefahr von Beschädigungen im Bereich empfindlicher Querschnitte ausgesetzt sind. Bei Futterrohren sind die Zapfenenden an sich schon dünn bemessen, so daß eine weitere Schwächung die Gefahr der Beschädigung wesentlich erhöhen würde.It has already been proposed to make the pin end elastic by weakening it so it receives a radial possibility of deformation and cooperates in a sealing manner with the adjacent wall can. However, this route has been deliberately refrained from as the pipes during transport and exposed to the risk of damage in the area of sensitive cross-sections on the drilling field are. In the case of casing pipes, the pin ends are already thin, so that another Weakening would significantly increase the risk of damage.

Erfindungsgemäß werden nun die Mängel der bekannten Ausführungen dadurch vermieden, daß die ineinandergreifenden kegeligen Dichtflächen unterschiedliche Materialhärten erhalten. Dadurch wird erzielt, daß sich die kegeligen Dichtflächen bei Ineinanderpressen überall formschlüssig aneinanderlegen, indem etwaige Ungenauigkeiten der Bearbeitung ausgeglichen werden.According to the invention, the shortcomings of the known designs are avoided in that the interlocking conical sealing surfaces receive different material hardnesses. This will achieved that the conical sealing surfaces when pressed together Form-fitting against each other everywhere by compensating for any inaccuracies in the processing will.

Die praktische Verwirklichung der Erfindung gestaltet sich besonders zweckmäßig und einfach bei derjenigen Bauart einer Schraubverbindung, bei der die kegeligen Dichtflächen am freien Ende des inneren Gewindeteiles und am Grund des äußeren Gewindeteiles angeordnet sind. Erfindungsgemäß erhält hierbei die Dichtfläche des inneren Gewindeteiles die geringere Materialhärte. Zu diesem Zweck kann das freie Ende des inneren Gewindeteiles weichgeglüht sein. Statt dessen kann das Gewindeteilende auch durch einen vorgeschweißten Weicheisenring gebildet sein.The practical implementation of the invention turns out to be particularly expedient and simple that type of screw connection in which the conical sealing surfaces at the free end of the inner Threaded part and are arranged at the bottom of the outer threaded part. According to the invention here the sealing surface of the inner thread part the lower material hardness. For this purpose, this can free end of the inner threaded part be annealed. Instead, the threaded part end can also be formed by a pre-welded soft iron ring.

Bei einer weiteren Ausführungsform ist das freie Ende des inneren Gewindeteiles mit einem die Dichtfläche aufweisenden Weichmetallring bestückt.In a further embodiment, the free end of the inner threaded part is the sealing surface with one having a soft metal ring.

Ausführungsbeispiele der Schraubverbindung sind in den Abb. 1, 2 und 3 der Zeichnung in je einem Längsschnitt dargestellt.Embodiments of the screw connection are in Figs. 1, 2 and 3 of the drawing in one Longitudinal section shown.

Bei sämtlichen Ausführungsbeispielen sind die zu verbindenden Futterrohre α und b mit kegeligem Ge-Schraubverbindung der Futterrohre
für TiefbohrungenIn all the exemplary embodiments, the casing pipes α and b to be connected are the casing pipes with a conical Ge screw connection
for deep drilling

Anmelder:Applicant:

Mannesmann Aktiengesellschaft,
Düsseldorf, Mannesmannufer 1 bMannesmann Aktiengesellschaft,
Düsseldorf, Mannesmannufer 1 b

Wilhelm Sommer, Düsseldorf,
ist als Erfinder genannt wordenWilhelm Sommer, Düsseldorf,
has been named as the inventor

winde c ineinandergeschraubt. Der innere Gewindeteil b 1 des einen Futterrohres ist am freien Ende mit einer schwach kegeligen Dichtfläche b 2 versehen, die mit einer entsprechenden hohlkegeligen Dichtfläche α 2 am Grund des äußeren Gewindeteiles al des Rohres a zusammenwirkt.winch c screwed into each other. The inner threaded part b 1 of one casing pipe is provided at the free end with a slightly conical sealing surface b 2 , which cooperates with a corresponding hollow conical sealing surface α 2 at the base of the outer threaded part al of the pipe a .

Bei dem Beispiel nach Abb. 1 ist das die kegelige Dichtfläche b2 aufweisende Ende des inneren Gewindeteiles bl weichgeglüht, so daß die Dichtfläche b2 eine geringere Materialhärte aufweist als die Dichtfläche α 2.In the example according to FIG. 1, the end of the inner threaded part bl having the conical sealing surface b2 is annealed so that the sealing surface b2 has a lower material hardness than the sealing surface α 2.

Gemäß Abb. 2 ist das die Dichtfläche b2 aufweisende freie Ende des inneren Gewindeteiles b 1 durch einen vorgeschweißten Weicheisenring b 3 gebildet. According to FIG. 2, the free end of the inner threaded part b 1 having the sealing surface b2 is formed by a pre-welded soft iron ring b 3.

Bei dem Beispiel nach Abb. 3 ist das freie Ende des inneren Gewindeteiles bl mit einem die Dichtfläche & 2 aufweisenden weichen Metallring d, ζ. B. einem Bleiring oder Kupferring, bestückt.In the example according to Fig. 3, the free end of the inner threaded part bl is provided with a soft metal ring d, ζ having the sealing surface & 2. B. a lead ring or copper ring.

Claims (5)

PaTENTANSPKÜCHE:PATENT KITCHEN: 1. Schraubverbindung der Futterrohre für Tiefbohrungen, bei der die Gewindeteile der Rohre mit ineinandergreifenden kegeligen Dichtflächen versehen sind., daduroh gekennzeichnet, daß die kegeligen Dichtflächen der beiden Gewindeteile unterschiedliche Materialhärten aufweisen.1. Screw connection of the casing pipes for deep boreholes, in which the threaded parts of the pipes are provided with interlocking conical sealing surfaces., daduroh marked that the conical sealing surfaces of the two threaded parts have different material hardnesses. 2. Schraubverbindung nach Anspruch 1, bei der die kegeligen Dichtflächen am freien Ende, des inneren Gewindeteiles und am Grunde des äußeren Gewindeteiles angeordnet sind, dadurch gekennzeichnet, daß die Dichtfläche des inneren Gewindeteiles eine geringere Härte aufweist als die Dichtfläche des äußeren Gewindeteiles.2. Screw connection according to claim 1, wherein the conical sealing surfaces at the free end, des inner thread part and are arranged at the bottom of the outer thread part, characterized in that that the sealing surface of the inner threaded part has a lower hardness than the sealing surface of the outer threaded part. 3. Schraubverbindung nach Anspruch 2, dadurch gekennzeichnet, daß das freie Ende des inneren Gewindeteiles weichgeglüht ist.3. Screw connection according to claim 2, characterized in that the free end of the inner thread part is annealed. 709 809/224709 809/224 4. Schraubverbindung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß das freie Ende des inneren Gewindeteiles durch einen vorgeschweißten Weicheisenri'ng gebildet ist.4. Screw connection according to claims 1 and 2, characterized in that the free end of the inner threaded part is formed by a pre-welded soft iron ring. 5. Schraubverbindung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß das freie Ende des inneren Gewindeteiles mit einem die Dichtfläche aufweisenden weichen Metallring bestückt ist.5. Screw connection according to claims 1 and 2, characterized in that the free end of the inner threaded part equipped with a soft metal ring having the sealing surface is. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 211 179.References considered: U.S. Patent No. 2,211,179. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEM30371A 1956-04-27 1956-04-27 Screw connection of the wall sleeves for deep boreholes Pending DE1020586B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM30371A DE1020586B (en) 1956-04-27 1956-04-27 Screw connection of the wall sleeves for deep boreholes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM30371A DE1020586B (en) 1956-04-27 1956-04-27 Screw connection of the wall sleeves for deep boreholes

Publications (1)

Publication Number Publication Date
DE1020586B true DE1020586B (en) 1957-12-12

Family

ID=7300947

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM30371A Pending DE1020586B (en) 1956-04-27 1956-04-27 Screw connection of the wall sleeves for deep boreholes

Country Status (1)

Country Link
DE (1) DE1020586B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376354A1 (en) * 1977-01-03 1978-07-28 Centron Corp PIPE EQUIPPED WITH CONNECTION ENDS AND CHANNEL MADE BY MEANS OF THIS TYPE.
EP0570028A2 (en) * 1987-12-28 1993-11-18 Hydril Company Lengthened tubular pin member/nose for improving sealing integrity and bearing forces
WO2013104769A3 (en) * 2012-01-12 2014-01-16 Reelwell As Seal assembly for nested dual drill pipe
DE102014225591A1 (en) * 2014-12-11 2016-06-16 Siemens Aktiengesellschaft Electrical power transmission device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211179A (en) * 1938-11-12 1940-08-13 Hydril Company Of California Casing joint

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211179A (en) * 1938-11-12 1940-08-13 Hydril Company Of California Casing joint

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376354A1 (en) * 1977-01-03 1978-07-28 Centron Corp PIPE EQUIPPED WITH CONNECTION ENDS AND CHANNEL MADE BY MEANS OF THIS TYPE.
EP0570028A2 (en) * 1987-12-28 1993-11-18 Hydril Company Lengthened tubular pin member/nose for improving sealing integrity and bearing forces
EP0570028A3 (en) * 1987-12-28 1995-01-18 Hydril Co Lengthened tubular pin member/nose for improving sealing integrity and bearing forces.
WO2013104769A3 (en) * 2012-01-12 2014-01-16 Reelwell As Seal assembly for nested dual drill pipe
US8770628B2 (en) 2012-01-12 2014-07-08 Reelwell, A.S. Seal assembly for nested dual drill pipe
DE102014225591A1 (en) * 2014-12-11 2016-06-16 Siemens Aktiengesellschaft Electrical power transmission device

Similar Documents

Publication Publication Date Title
DE1020586B (en) Screw connection of the wall sleeves for deep boreholes
DE3311606C2 (en)
DE3512262C1 (en) Sealing device
EP0178248A3 (en) Steel pipe as a crack stopper for gas main
DE2939383A1 (en) Protection for housing or pipe interiors - uses stopper made from elastic material pressed into pipe end and with flexible sealing lips
DE664372C (en) Elastic thread protection for pipe ends with cut threads
DE1920873U (en) METAL LINING ON A FLANGE.
DE2026171A1 (en) Disc spring
DE1072028B (en)
DE382707C (en) Projectile, in particular hand grenades, mines or the like.
CH388044A (en) Device for connecting a branch line to a pipeline
DE688521C (en)
DE2106549A1 (en) Roll for rolling mill
DE846537C (en) Drawing ring for drawing hollow bodies
DE832902C (en) Protective cap for steel bottles
DE557533C (en) Gas and watertight connection of pipes and fittings
DE582375C (en) Pneumatic tube socket with metal rings
DE1075913B (en) Valve housing with a short overall length
AT298891B (en) SCREW
DE671564C (en) Welded connection for a smooth, flangeless heating pipe, especially for locomotive boilers
DE3245690C2 (en) Force transducers
DE899966C (en) Arc protection for high voltage insulators, especially long rod insulators, chain insulators, bushings, supports, etc.
DE875495C (en) Pit lining, especially as longwall mining
DE1918333A1 (en) Sealed housing for a pocket or wrist watch, especially for a diving watch
AT93103B (en) Spark plug.