US3492028A - Protected extendable joint - Google Patents

Protected extendable joint Download PDF

Info

Publication number
US3492028A
US3492028A US706176A US3492028DA US3492028A US 3492028 A US3492028 A US 3492028A US 706176 A US706176 A US 706176A US 3492028D A US3492028D A US 3492028DA US 3492028 A US3492028 A US 3492028A
Authority
US
United States
Prior art keywords
sleeve
sub
bumper
extendable joint
diameter
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 - Lifetime
Application number
US706176A
Other languages
English (en)
Inventor
Ed O Seabourn
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum Co
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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Application granted granted Critical
Publication of US3492028A publication Critical patent/US3492028A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

Definitions

  • the bumper sub has an upper sleeve with the same outside diameter as the drill string tubing and a lower sleeve of reduced diameter which telescopes within the upper sleeve.
  • the lower sleeve When the lower sleeve is at least partially extended, it forms a weak link in the drill string due to its reduced diameter. This weakness can become critical in drilling the initial large diameter hole where the bumper sub has no support against lateral bending. Under these circumstances the occurrence of a sufficient lateral force can bend or even break the lower sleeve.
  • the design of some bumper subs permits abrasive material to enter the sub when in an extended position. Also, the bumpersubs can be jammed by unconsolidated rock or other material becoming wedged in the open joint.
  • an object of the invention to protect an extendable joint against lateral bending. It is an object of the invention to provide a protecting sleeve for a bumper sub. An object of the invention is to minimize entry of abrasive material into an extendable joint. Another object of the invention is to prevent rock or other material from being wedged in an open joint of a bumper sub.
  • FIGURE 1 is an elevation view, partly in cross section of a bumper sub provided with an outer protective sleeve in accordance with the invention, the bumper sub being partially extended
  • FIGURE 2 is an elevation view, partly in cross section of the device of FIGURE 1 with the bumper sub fully extended.
  • the protected bumper sub 11 is connected between two sections of drill pipe 12 and 13.
  • the bumper sub has an upper sleeve Patented Jan. 27, 1970 14 provided with a top end screw socket 15, adapted for threaded engagement with the male screw plug 16 on the bottom end of adapter sub 17.
  • adapter sub 17 is provided with a topend screw socket 18, adapted for threaded engagement with the male screw plug 19 on the bottom end of drill pipe 12.
  • Adapter sub 17 is provided with an axial passageway 21 to connect the interior of drill pipe 12 to the interior of upper sleeve 14.
  • a bottom-end bushing 22 is screwed into the lower end of the bore of upper sleeve 14.
  • Bushing 22 has a smaller internal diameter than the upper sleeve, thereby presenting a bumping shoulder 23.
  • lower sleeve 24 is smaller than the internal diameter of upper sleeve 14, permitting lower sleeve 24 to telescope within upper sleeve 14.
  • Lower sleeve 24 is provided with a plurality of longitudinal keyways 25 in the exterior surface thereof.
  • Bushing 22 is provided with a corresponding plurality of feathers, or keys, 26 which extend into the keyways 25.
  • the keys 26 in keyways 25 permit the lower sleeve 24 to reciprocate axially with respect to upper sleeve 14, but prevent relative rotation of the upper and lower sleeves.
  • the lower end of lower sleeve 24 is provided with a section 27 of increased diameter, preferably the same external diameter as the drill pipe 13 and the upper sleeve 14.
  • Section 27 is provided with a male screw plug 28 on the bottom end thereof adapted for threaded engagement with the top end screw socket 29 of drill pipe 13.
  • Section 27 has an axial passageway 31 therethrough for communication between the interior of drill pipe 13 through the interior of sleeves 14 and 24 and adapter sub 17 to the interior of drill pipe 12.
  • adapter sub has a section 32 of enlarged diameter having screw threads on the exterior thereof.
  • An outer protective sleeve 33 having an internal diameter greater than the maximum external diameter of the bumper sub, is internally threaded at its upper end for threaded engagement with section 32.
  • the sleeve 33 has a length sufiicient to extend below section 27 in the fully extended position for the bumper sub, as illustrated in FIGURE 2.
  • the lower portion of sleeve 33 has been omitted in FIGURE 1. Where two or more bumper subs are connected together to increase the extension range, sleeve 33 is of sufiicient length to extend below the section 27 of the lowest bumper sub.
  • sleeve 14 As the external diameters of section 27, sleeve 14 is less than the internal diameter of protective sleeve 33, the lower sleeve 24 (and entire bumper subs, if more than one is utilized) can reciprocate within sleeve 33.
  • the difference between the external diameter of the bumper sub and the internal diameter of the protective sleeve is sufficiently small to provide the desired protection against bending of the small diameter lower sleeve 24 during lateral forces. Generally, this difference will be less than two inches and preferably will be in the range of about inch to about /2 inch.
  • Sleeve 33 prevents loose rock in the borehole from entering the keyways 25 and jamming the bumper sub, thus preventing reciprocation. Similarly, sleeve 33 prevents any larger rocks in the borehole from engaging the lower shoulder of section 22 or the upper shoulder of section 27 and snagging or pinning the bumper sub in the borehole.
  • the securement of casing 33 at its upper end to adapter sub 17 reduces the contact of abrasive material in the borehole fluid with the sliding surfaces of the upper and lower sleeves.
  • the upper end of adapter sub 17 had an external diameter of 7% inches, which was the same as that of drill pipes 12 and 13, upper sleeve 14 and section 27.
  • the section 32 of adapter sub 17 was threaded to receive a metal sleeve 33 having an internal diameter of 7.92 inches and an external diameter of 8% inches.
  • the bumper sub, from tip to tip, excluding the adapter sub, had a length of approximately 11 feet 6 inches in the fully closed, or retracted, position and a length of approximately 16 feet 6 inches in the fully elongated position.
  • the outer sleeve 33 had a length in excess of 20 feet below the bottom of the adapter sub.
  • upper sleeve 14 being the outer sleeve and lower sleeve 24 as being the inner sleeve, this can be reversed. While the invention has been described in terms of a specific bumper sub, other types of bumper subs and other extendable joints can be employed.
  • Apparatus comprising an elongated extendable joint having an upper end, a lower end, and a fluid passageway along the longitudinal axis thereof, and having a fully elongated position and a retracted position; said extendable joint comprising an outer sleeve and an inner sleeve; said inner sleeve being telescopable within said outer sleeve from said fully elongated position to said retracted position; means for limiting the extension of said extendable joint; and a protective sleeve surrounding said extendable joint and connected at one end thereof to one of said upper and lower ends, the internal diameter of said protective sleeve being greater than the maximum outer diameter of said extendable joint; said protective sleeve having a length greater than the combined length of said outer sleeve and said inner sleeve when said inner sleeve is extended to said fully elongated position and positioned to extend beyond the upper and lower ends of said combined length of said outer sleeve and said
  • Apparatus in accordance with claim 3 further comprising a drill string tubing connected at its lower end to the top end of said adapter sub, and conduit means connected to the lower end of said inner sleeve, said conduit means having an external diameter greater than the external diameter of said inner sleeve and less than the internal diameter of said protective sleeve.
  • Apparatus in accordance with claim 3 further comprising means for preventing relative rotation of said inner and outer sleeves.
  • Apparatus comprising an elongated extendable joint having an upper end, a lower end, and a fluid passageway along the longitudinal axis thereof, and having a fully elongated position and a retracted position; means for limiting the extension of said extendable joint; said extendable joint comprising an outer sleeve and an inner sleeve; said inner sleeve being telescopable within said outer sleeve from said fully elongated position to said retracted position; said outer sleeve being connected at its upper end to the bottom end of an adapter sub; means directly engaging said inner and outer sleeves for preventing relative rotation of said inner and outer sleeves; and a protective sleeve surrounding said extendable joint and connected at its upper end to said adapter sub, the internal diameter of said protective sleeve being substantially constant throughout and being greater than the maximum outer diameter of said extendable joint; said protective sleeve having a length greater than the length of said inner and outer sleeves and completely overlapping said inner and outer sleeves

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Making Paper Articles (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US706176A 1968-02-16 1968-02-16 Protected extendable joint Expired - Lifetime US3492028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70617668A 1968-02-16 1968-02-16

Publications (1)

Publication Number Publication Date
US3492028A true US3492028A (en) 1970-01-27

Family

ID=24836510

Family Applications (1)

Application Number Title Priority Date Filing Date
US706176A Expired - Lifetime US3492028A (en) 1968-02-16 1968-02-16 Protected extendable joint

Country Status (9)

Country Link
US (1) US3492028A (fi)
DE (3) DE1907572A1 (fi)
DK (1) DK135961B (fi)
FI (1) FI55891C (fi)
FR (1) FR2002052A1 (fi)
GB (1) GB1232932A (fi)
NL (1) NL149569B (fi)
NO (1) NO126874B (fi)
SE (1) SE349349B (fi)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678031A (en) * 1986-01-27 1987-07-07 Blandford David M Rotatable reciprocating collar for borehole casing
US4751967A (en) * 1986-01-27 1988-06-21 Blandford David M Stage cementing apparatus
EP0461311A2 (en) * 1990-06-12 1991-12-18 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
CN112647859A (zh) * 2020-12-24 2021-04-13 江苏拓海煤矿钻探机械有限公司 一种煤矿钻杆用液压接头

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20319527U1 (de) 2003-12-16 2004-03-04 Maschinenbau Oppenweiler Binder Gmbh & Co. Kg Transportwelle für eine Falzmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US320661A (en) * 1885-06-23 Gas-tight expansion-joint
GB524935A (en) * 1938-02-15 1940-08-19 Karl Lars Esais Thunholm Improvements in expansion joints for pipes and the like
US2664271A (en) * 1951-12-06 1953-12-29 Arutunoff Armais Sealing device for tubular shafting
US3291225A (en) * 1964-07-03 1966-12-13 Gardner Denver Co Drive coupling for drill string

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1034368A (en) * 1910-04-21 1912-07-30 William Kahle Automatic drilling-tool.
US2783844A (en) * 1955-10-05 1957-03-05 Exxon Research Engineering Co Tubing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US320661A (en) * 1885-06-23 Gas-tight expansion-joint
GB524935A (en) * 1938-02-15 1940-08-19 Karl Lars Esais Thunholm Improvements in expansion joints for pipes and the like
US2664271A (en) * 1951-12-06 1953-12-29 Arutunoff Armais Sealing device for tubular shafting
US3291225A (en) * 1964-07-03 1966-12-13 Gardner Denver Co Drive coupling for drill string

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678031A (en) * 1986-01-27 1987-07-07 Blandford David M Rotatable reciprocating collar for borehole casing
US4751967A (en) * 1986-01-27 1988-06-21 Blandford David M Stage cementing apparatus
EP0461311A2 (en) * 1990-06-12 1991-12-18 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
EP0461311A3 (en) * 1990-06-12 1992-07-08 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
US5263899A (en) * 1990-06-12 1993-11-23 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
EP0798444A1 (en) * 1990-06-12 1997-10-01 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
CN112647859A (zh) * 2020-12-24 2021-04-13 江苏拓海煤矿钻探机械有限公司 一种煤矿钻杆用液压接头

Also Published As

Publication number Publication date
NO126874B (fi) 1973-04-02
FI55891C (fi) 1979-10-10
DE1907572A1 (de) 1969-08-28
NL149569B (nl) 1976-05-17
DK135961B (da) 1977-07-18
NL6902362A (fi) 1969-08-19
GB1232932A (fi) 1971-05-26
DE1907908B1 (de) 1970-10-08
SE349349B (fi) 1972-09-25
FI55891B (fi) 1979-06-29
DE6906217U (de) 1971-07-29
DE1907908C2 (de) 1971-05-13
DK135961C (fi) 1977-12-12
FR2002052A1 (fi) 1969-10-03

Similar Documents

Publication Publication Date Title
US7852232B2 (en) Downhole tool adapted for telemetry
US4452472A (en) Tubular safety joint for drill strings
US4380347A (en) Well tool
CA1289589C (en) Joints for tubular members
US9200486B2 (en) Wired drill pipe with improved configuration
US8118093B2 (en) Threaded retention device for downhole transmission lines
CA2483934C (en) Threaded pipe joint
US3754609A (en) Drill string torque transmission sleeve
US3475039A (en) Universal ball joint for pressurized flow lines
US4004832A (en) Thread form for pipe joints
US20150145247A1 (en) Alignment guide feature for metal to metal seal protection on mechanical connections and couplings
US3642079A (en) Multisleeve stabilizer
SA111320900B1 (ar) عدة حفر الأرض ذات الأجزاء القابلة للتوسع والطرق المتعلقة بذلك
US7093654B2 (en) Downhole component with a pressure equalization passageway
US3492028A (en) Protected extendable joint
US2708100A (en) Safety joint for oil well drilling stems
US2542679A (en) Combination sub for drilling operations
US2585995A (en) Drilling joint
US1824257A (en) Tool joint
US1708378A (en) Rotary friction coupling
EP2802732B1 (en) Nested dual drill pipe
US20090139711A1 (en) Tool String Threads
US3491830A (en) Back-off tool assembly
JP2017512291A (ja) 荷重偏向領域を備えた管カップリング
CN210092474U (zh) 电缆连接用公接头