US3280519A - Slingline arrangement for oil well masts - Google Patents

Slingline arrangement for oil well masts Download PDF

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Publication number
US3280519A
US3280519A US372765A US37276564A US3280519A US 3280519 A US3280519 A US 3280519A US 372765 A US372765 A US 372765A US 37276564 A US37276564 A US 37276564A US 3280519 A US3280519 A US 3280519A
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US
United States
Prior art keywords
mast
gin pole
sheaves
slingline
base
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
US372765A
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English (en)
Inventor
Jenkins Cecil
Erwin A Campbell
Joseph R Woolslayer
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.)
Lee C Moore Corp
Original Assignee
Lee C Moore Corp
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 Lee C Moore Corp filed Critical Lee C Moore Corp
Priority to US372765A priority Critical patent/US3280519A/en
Priority to GB2156465A priority patent/GB1052576A/en
Priority to DEM65397A priority patent/DE1230381B/de
Priority to FR18952A priority patent/FR1443449A/fr
Priority to BE664968D priority patent/BE664968A/fr
Priority to NL6507209A priority patent/NL6507209A/xx
Application granted granted Critical
Publication of US3280519A publication Critical patent/US3280519A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
    • 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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts

Definitions

  • slingline has its opposite ends secured to the upper part of the gin pole. The slingline is doubled on itself and extends from the gin pole forward and around the two mast sheaves and then back over the top gin pole sheaves and down under the bottom gin pole sheaves, from which the slingline extends forward into the mast to form a loop therein for connection to the travelling block.
  • the travelling block can be connected to the slingline at the foot of the gin pole, so it will be able to travel substantially the full length of the mast during erection of the mast.
  • the final position of the travelling block will be near the foot of the gin pole, so it can be deposited on the supporting base, without any necessity for further handling it.
  • FIG. 1 is a side view of a portable oil well mast in position for raising;
  • FIG. 2 is an enlarged, fragmentary side view of the mast being raised
  • FIG. 3 is a side view of the fully raised mast
  • FIG. 4 is an enlarged plan view of the front section of the substructure, showing the lower part of the sling.
  • FIG. 5 is a perspective view of the sling while the mast is in its lower position.
  • a mast substructure or base 1 of any suitable construction is located at the well location, either by being assembled there or by being hauled there on wheels 2.
  • Mounted in front and rear shoes 3 and 4 on the base are the upwardly converging legs of a gin pole 5.
  • Pivotally mounted at 6 in the front shoes are the feet of a reclining mast 7 that extends forward away from the base.
  • the front end or head of the mast supports the usual crown block 8, through which pass lengths of a line 9 that extends back through the mast to a travelling block 10 near the gin pole.
  • a slingline 15 is used, which is doubled on itself to form a loop over the hook 116 of the travelling block. It is a feature of this invention that the two sides of the sling extend back under a pair of substantially vertical sheaves 17, which are pivotally mounted at the bottom of the gin pole, such as being connected to the inner sides of the front shoes 2 as shown in FIG. 4. From these sheaves the sling extends up and forward over another pair of vertical sheaves 18, supported by the top of the gin pole, and then forward and around a pair of snatch bloc-ks 19 connected to the upper part of the reclining mast. The sling then extends back to the top of the gin pole, to which the opposite ends of the slingline are anchored at 20 (FIG. 5) in any suitable manner.
  • the sling loop When the drawworks is operated to pull the travelling block toward the crown block, the sling loop is pulled in the same direction. This shortens the portion of the sling above the reclining mast, so that the sling helps to swing the mast upward and back against the gin pole to upright position as shown in FIG. 3. To lower the mast, it is pulled forward over dead center by a suitable auxiliary line (not shown) and then the slingline aids in supporting the tilting mast and controlling its descent to the ground.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
US372765A 1964-06-05 1964-06-05 Slingline arrangement for oil well masts Expired - Lifetime US3280519A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US372765A US3280519A (en) 1964-06-05 1964-06-05 Slingline arrangement for oil well masts
GB2156465A GB1052576A (enrdf_load_stackoverflow) 1964-06-05 1965-05-21
DEM65397A DE1230381B (de) 1964-06-05 1965-05-28 Hubseilanordnung fuer niederschwenkbare Bohrtuerme
FR18952A FR1443449A (fr) 1964-06-05 1965-05-31 Charpente notamment pour forage pour puits de pétrole
BE664968D BE664968A (enrdf_load_stackoverflow) 1964-06-05 1965-06-04
NL6507209A NL6507209A (enrdf_load_stackoverflow) 1964-06-05 1965-06-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US372765A US3280519A (en) 1964-06-05 1964-06-05 Slingline arrangement for oil well masts

Publications (1)

Publication Number Publication Date
US3280519A true US3280519A (en) 1966-10-25

Family

ID=23469549

Family Applications (1)

Application Number Title Priority Date Filing Date
US372765A Expired - Lifetime US3280519A (en) 1964-06-05 1964-06-05 Slingline arrangement for oil well masts

Country Status (6)

Country Link
US (1) US3280519A (enrdf_load_stackoverflow)
BE (1) BE664968A (enrdf_load_stackoverflow)
DE (1) DE1230381B (enrdf_load_stackoverflow)
FR (1) FR1443449A (enrdf_load_stackoverflow)
GB (1) GB1052576A (enrdf_load_stackoverflow)
NL (1) NL6507209A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754361A (en) * 1972-06-26 1973-08-28 Pyramid Derrick & Equipment Transportable drilling mast substructure with elevatable drawworks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113482381B (zh) * 2021-07-20 2023-01-24 重庆顺泰铁塔制造有限公司 一种安全防护型耐候钢输电铁塔

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706540A (en) * 1954-01-20 1955-04-19 Moore Corp Lee C Folding gin pole for oil well mast
US2787344A (en) * 1954-02-10 1957-04-02 Moore Corp Lee C Portable oil well mast with folding gin pole
US2963124A (en) * 1957-07-30 1960-12-06 Moore Corp Lee C Oil well derrick and method of erection
US3141653A (en) * 1963-03-11 1964-07-21 Moore Corp Lee C Oil well drilling structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186006B (de) 1964-03-26 1965-01-28 Moore Corp Lee C Umlegbarer Bohrturm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706540A (en) * 1954-01-20 1955-04-19 Moore Corp Lee C Folding gin pole for oil well mast
US2787344A (en) * 1954-02-10 1957-04-02 Moore Corp Lee C Portable oil well mast with folding gin pole
US2963124A (en) * 1957-07-30 1960-12-06 Moore Corp Lee C Oil well derrick and method of erection
US3141653A (en) * 1963-03-11 1964-07-21 Moore Corp Lee C Oil well drilling structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754361A (en) * 1972-06-26 1973-08-28 Pyramid Derrick & Equipment Transportable drilling mast substructure with elevatable drawworks

Also Published As

Publication number Publication date
FR1443449A (fr) 1966-06-24
BE664968A (enrdf_load_stackoverflow) 1965-10-01
DE1230381B (de) 1966-12-15
NL6507209A (enrdf_load_stackoverflow) 1965-12-06
GB1052576A (enrdf_load_stackoverflow) 1966-12-30

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