GB786652A - Improvements in or relating to tapering box-and-pin-type threaded couplings - Google Patents
Improvements in or relating to tapering box-and-pin-type threaded couplingsInfo
- Publication number
- GB786652A GB786652A GB7378/55A GB737855A GB786652A GB 786652 A GB786652 A GB 786652A GB 7378/55 A GB7378/55 A GB 7378/55A GB 737855 A GB737855 A GB 737855A GB 786652 A GB786652 A GB 786652A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- box
- threads
- pitch
- thread
- 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.)
- Expired
Links
- 230000008878 coupling Effects 0.000 title abstract 8
- 238000010168 coupling process Methods 0.000 title abstract 8
- 238000005859 coupling reaction Methods 0.000 title abstract 8
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/30—Locking exclusively by special shape of the screw-thread
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Earth Drilling (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Drilling Tools (AREA)
Abstract
786,652. Pipe couplings. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. March 14, 1955 [March 16, 1954], No. 7378/55. Class 99(1). [Also in Group XXIV] In a tapering pin-and-box type threaded coupling the two members, the pin and the box are provided with tapering threaded surfaces, such that when the pin has been screwed tight into the box the outer flanks (as defined) of the pin threads and the inner flanks (as defined) of the box threads are loaded more heavily than the other flanks. A small number of the outer flanks of the pin threads and the inner flanks of the box threads at or near the middle of the screwed threads may remain unloaded. The couplings may be used at many points in welldrilling apparatus such as tool joints casing collars, subs, drill collar joints and drill bit joints. In Fig. 4, the pitch of the thread of the pin 1 is bigger and that of the box 3 smaller at the middle part of the thread. Thus the outer flanks of the pin thread press against the inner flanks of the box thread. The threaded part of the pin is under compression. The pitch variation may be provided in only one of the screw threads. In Fig. 5 the pitch P2 at the right hand side of the thread is smaller than P1. The thread may be interrupted at a point where the pitch is varied. In Fig. 6 the pitch P2 is greater than P1. The difference between the pitch diameters of the pin and box threads near the mid point of their length is smaller than at either end. In a modification of Fig. 6 the box pitch diameter line is straight. The pin of the screw thread is divided into two parts having tapers which differ from each other and also from the taper of the box thread 4. The transition between the two tapering parts of the pin is designed to take place more or loss gradually. In another modification, the taper of the pin may be constant and the box may have two parts with different tapers such that the taper of the part near the open end of the box is larger and the taper of the part near the inside of the box is smaller than the taper of the pin. In addition the pitch of the pin screw thread may be made different on two parts of the pin, it may, for example, be made equal to the pitch of the box thread over the left hand part of the thread. Couplings of the kind shown in Fig. 6 and in Fig. 7 (not shown) in which there is a small difference in pitch between the pin and box threads may in addition be provided with local pitch variations such as those provided on the threads of the couplings shown in Figs. 4 and 5. Sealing, instead of being by means of shoulders 5, 6, may be provided by engaging tapering faces. The box may be preheated and cooled after the pin has been screwed into it. The threads of both the pin and box may comprise two parts with different tapers or a cylindrical part and a tapering part. Dimensions of a coupling according to the invention are quoted and results of a test thereon. A coupling with threads 1 in. longer than the standard length was also tested.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL185953A NL89471C (en) | 1954-03-16 | 1954-03-16 | |
NL201628A NL96590C (en) | 1954-03-16 | 1955-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB786652A true GB786652A (en) | 1957-11-20 |
Family
ID=26645479
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7378/55A Expired GB786652A (en) | 1954-03-16 | 1955-03-14 | Improvements in or relating to tapering box-and-pin-type threaded couplings |
GB32956/56A Expired GB806553A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to tapering pin-and-box type threaded couplings |
GB32953/56A Expired GB801456A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to cylindrical pin-and-box type threaded couplings |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32956/56A Expired GB806553A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to tapering pin-and-box type threaded couplings |
GB32953/56A Expired GB801456A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to cylindrical pin-and-box type threaded couplings |
Country Status (4)
Country | Link |
---|---|
DE (2) | DE1012876B (en) |
FR (3) | FR1124979A (en) |
GB (3) | GB786652A (en) |
NL (6) | NL89471C (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129963A (en) * | 1960-06-30 | 1964-04-21 | Robbins Machine & Mfg Co | Low release torque threaded joint |
WO1984004351A1 (en) * | 1983-04-29 | 1984-11-08 | Hydril Co | Improved tubular connection |
GB2145791A (en) * | 1983-08-31 | 1985-04-03 | Hunting Oilfield Services | Threaded pipe connectors |
GB2146084A (en) * | 1983-08-31 | 1985-04-11 | Hunting Oilfield Services | Pipe connectors |
GB2146086A (en) * | 1983-09-06 | 1985-04-11 | Hunting Oilfield Services | Threaded pipe connectors |
US4673201A (en) * | 1983-09-01 | 1987-06-16 | Hunting Oilfield Services (Uk) Limited | Pipe connector |
US4892337A (en) * | 1988-06-16 | 1990-01-09 | Exxon Production Research Company | Fatigue-resistant threaded connector |
US4958973A (en) * | 1988-03-23 | 1990-09-25 | Nobuyuki Sugimura | Internal-pressure-bearing female screw |
USRE34467E (en) * | 1983-04-29 | 1993-12-07 | The Hydril Company | Tubular connection |
WO1996007044A1 (en) * | 1994-08-29 | 1996-03-07 | Mannesmann Ag | Pipe joint |
NL1033343C2 (en) * | 2007-02-06 | 2008-08-07 | Gerrit Cornelis Koese | Coupling for rotationally connecting two elements and drilling device equipped with them in one direction of rotation. |
EP2115339A2 (en) * | 2006-01-26 | 2009-11-11 | Ramos, Beverly Watts | Threaded pipe connection |
CN102296935A (en) * | 2011-07-30 | 2011-12-28 | 山西环界石油钻具制造有限公司 | High-antitorque moment threaded connecting structure for outer coring pipes |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL271091A (en) * | 1961-11-07 | 1964-07-27 | ||
GB1111995A (en) * | 1964-05-29 | 1968-05-01 | Sandvikens Jernverks Ab | Improvements in threaded drill rod elements |
US3589550A (en) * | 1969-11-17 | 1971-06-29 | Nat Forge Co | Flexible thread systems for high-pressure vessels and the like |
FR2190237A5 (en) * | 1972-06-16 | 1974-01-25 | Vallourec | |
FR2190238A5 (en) * | 1972-06-16 | 1974-01-25 | Vallourec | |
US4121862A (en) * | 1977-04-06 | 1978-10-24 | Exxon Production Research Company | Pipe connection |
US4373754A (en) * | 1978-08-09 | 1983-02-15 | Hydril Company | Threaded connector |
DE4111463A1 (en) * | 1991-04-09 | 1992-10-15 | Festo Kg | EXTERNAL THREAD AND INTERNAL THREAD, PREFERABLY FOR THE PRODUCTION OF FLUIDIC CONNECTIONS IN PNEUMATICS |
US20070220731A1 (en) * | 2006-03-23 | 2007-09-27 | Hardinge, Inc. | Apparatus and method for engaging components through thermal contraction |
AT13405U1 (en) * | 2012-01-20 | 2013-12-15 | Ceratizit Austria Gmbh | HART MATERIAL THREAD CONNECTION |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1817808A (en) * | 1930-11-20 | 1931-08-04 | Spang Chalfant & Company Inc | Method of making tight threaded joints |
-
0
- NL NL201627D patent/NL201627A/xx unknown
- NL NL201628D patent/NL201628A/xx unknown
- NL NLAANVRAGE7611685,A patent/NL185953B/en unknown
-
1954
- 1954-03-16 NL NL185953A patent/NL89471C/xx active
-
1955
- 1955-03-14 FR FR1124979D patent/FR1124979A/en not_active Expired
- 1955-03-14 GB GB7378/55A patent/GB786652A/en not_active Expired
- 1955-10-31 NL NL201628A patent/NL96590C/xx active
- 1955-10-31 NL NL201627A patent/NL96272C/xx active
-
1956
- 1956-03-10 DE DEN11945A patent/DE1012876B/en active Pending
- 1956-03-10 DE DEN11943A patent/DE1151774B/en active Pending
- 1956-10-29 GB GB32956/56A patent/GB806553A/en not_active Expired
- 1956-10-29 FR FR1162733D patent/FR1162733A/en not_active Expired
- 1956-10-29 FR FR71006D patent/FR71006E/en not_active Expired
- 1956-10-29 GB GB32953/56A patent/GB801456A/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129963A (en) * | 1960-06-30 | 1964-04-21 | Robbins Machine & Mfg Co | Low release torque threaded joint |
WO1984004351A1 (en) * | 1983-04-29 | 1984-11-08 | Hydril Co | Improved tubular connection |
GB2149870A (en) * | 1983-04-29 | 1985-06-19 | Hydril Co | Improved tubular connection |
USRE34467E (en) * | 1983-04-29 | 1993-12-07 | The Hydril Company | Tubular connection |
GB2145791A (en) * | 1983-08-31 | 1985-04-03 | Hunting Oilfield Services | Threaded pipe connectors |
GB2146084A (en) * | 1983-08-31 | 1985-04-11 | Hunting Oilfield Services | Pipe connectors |
US4673201A (en) * | 1983-09-01 | 1987-06-16 | Hunting Oilfield Services (Uk) Limited | Pipe connector |
GB2146086A (en) * | 1983-09-06 | 1985-04-11 | Hunting Oilfield Services | Threaded pipe connectors |
US4958973A (en) * | 1988-03-23 | 1990-09-25 | Nobuyuki Sugimura | Internal-pressure-bearing female screw |
US4892337A (en) * | 1988-06-16 | 1990-01-09 | Exxon Production Research Company | Fatigue-resistant threaded connector |
WO1996007044A1 (en) * | 1994-08-29 | 1996-03-07 | Mannesmann Ag | Pipe joint |
EP2115339A2 (en) * | 2006-01-26 | 2009-11-11 | Ramos, Beverly Watts | Threaded pipe connection |
EP2115339A4 (en) * | 2006-01-26 | 2014-03-26 | Ramos Beverly Watts | Threaded pipe connection |
NL1033343C2 (en) * | 2007-02-06 | 2008-08-07 | Gerrit Cornelis Koese | Coupling for rotationally connecting two elements and drilling device equipped with them in one direction of rotation. |
WO2008097085A1 (en) * | 2007-02-06 | 2008-08-14 | Gerrit Cornelis Koese | Coupling for connecting two elements in a manner restrained from rotation in one direction of rotation, and drilling machine equipped therewith |
CN102296935A (en) * | 2011-07-30 | 2011-12-28 | 山西环界石油钻具制造有限公司 | High-antitorque moment threaded connecting structure for outer coring pipes |
Also Published As
Publication number | Publication date |
---|---|
FR1124979A (en) | 1956-10-22 |
FR71006E (en) | 1959-10-07 |
NL96272C (en) | 1960-06-15 |
GB806553A (en) | 1958-12-31 |
NL89471C (en) | 1958-06-16 |
NL201627A (en) | |
GB801456A (en) | 1958-09-17 |
FR1162733A (en) | 1958-09-16 |
DE1151774B (en) | 1963-07-25 |
NL96590C (en) | 1960-08-15 |
NL201628A (en) | |
NL185953B (en) | |
DE1012876B (en) | 1957-08-01 |
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