US3807109A - Oil well drilling apparatus - Google Patents

Oil well drilling apparatus Download PDF

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Publication number
US3807109A
US3807109A US00299011A US29901172A US3807109A US 3807109 A US3807109 A US 3807109A US 00299011 A US00299011 A US 00299011A US 29901172 A US29901172 A US 29901172A US 3807109 A US3807109 A US 3807109A
Authority
US
United States
Prior art keywords
support member
sling
mast
reclining
setback
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
US00299011A
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English (en)
Inventor
C Jenkins
R Donnally
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 US00299011A priority Critical patent/US3807109A/en
Priority to GB3058273A priority patent/GB1389152A/en
Priority to AU57554/73A priority patent/AU472298B2/en
Priority to CA176,568A priority patent/CA961027A/en
Priority to FR7328734A priority patent/FR2203933B1/fr
Priority to JP11063473A priority patent/JPS549961B2/ja
Priority to IT29769/73A priority patent/IT995613B/it
Priority to NL737314337A priority patent/NL155334B/xx
Application granted granted Critical
Publication of US3807109A publication Critical patent/US3807109A/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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts

Definitions

  • the foot end of a reclining mast member is piv- UNITED STATES PATENTS otally connected to the front end of one of these sup- 3,747,695 7/1973 Branham 1 52/116 port W Means are prov'ded for Swmgmg one 3,749,183 7/1973 Branham et al. 52 116 of the pwotany nnected members upward]? and 3,754,361 8/1973 Branham et a1. 52/116 'earwardly P P and Swmging 3,228,151 1/1966 Woolslayer et al 52 116 another of Said members P to raised Position 80 that 3,201,091 8/1965 Woolslayer et al.
  • FIG. 1 is a side view of all the lowered position
  • FIG. 2 is a side view showing the setback support raised
  • FIG. 3 is a side view showing the drawworks and gin pole raised and the upright mast in dotted lines;
  • FIGS. 4 and 5 are enlarged end views taken on the. lines IVIV and V-V, respectively.
  • FIGS. 6, 7' and 8 are views corresponding, respectively, to FIGS. 1, 2 and 3, of a modification.
  • a long skid base 1 has a raised central portion that provides an open area 2 or porthole beneath it in order to permit the base to be skidded-sideways away from a well head after a well has been completed.
  • This floor support member is connected with the base by means of parallel front and rear pairs of reclining links 7 and 8' extending lengthwiseof the base.
  • the front endsof the links are connected to the base at longitudinally spaced points 9, while the'rear ends of the links are pivotally connected to the floor support member at longitudinally spaced points 10.
  • the floor support 3 Being at a low elevation, the floor support 3 is easily deposited on the base and readily connected to it by means of the reclining links.
  • a reclining setback support member 11 Pivotally connected to the base in front of its raised central portion is the foot end of a reclining setback support member 11 which extends forward alongthe ground in front of the base.
  • the top of the front end of this reclining setback support is providedwith'brackets 12 that pivotally support the foot end of areclining mast member 13 likewise extending forward away from the base.
  • the mast is moved into position by a suitable truck 14 and trailer (not shown), so the'connection to the setback support is easy to make.
  • The-mast contains the usual traveling block 15, which can be supported from a dolly running on a trackalong the upper side of the reclining mast in a well-known manner.
  • Thetraveling block is connected by lines 16 with a crown block 17 at the head of the mast, from which the-fast line extends in the usual manner back over the mast and down around a sheave, supported by the top of the gin pole,
  • a sling line l8 is looped over the hook l9'of the traveling block and the opposite ends of the line are connected to anchor brackets 20 at the top of the gin pole.
  • the sling line'then is disconnected'from the gin pole and passed over a-roller 24 atthe back of the top of the setbacksupport and down to anchor points 25 on the floor support 3. Operation of the drawworks causes the traveling block to bemoved closer to the crown block and to pull the sling'along with it. The sling therefore swings the floor support upwardly and forwardly on its pivoted links until the front end of the floor support is close to the back of the top of the setback support, as shown in FIG. 3.
  • the two supports then can be connected together in anyv suitable manner, such as by pinningbrackets 26 and27together. Forward movement of the floor support can also belimited by telescoping braces 28 pivotally connected-attheir ends to-the base near the front links 7 and to the floorsupport near the back links 8.
  • the slingthen is disconnected from the floor support and passeduparound a pair of sheaves 31 supported by thetop of the gin pole and then forward to anchor brackets 32 on the upper side of the reclining mast.
  • the traveling block first has to be returned to a position near the setback support. Now, when the drawworks is operated to pull the traveling blocktowards'the crown blockagain, the sling swings the mast upwardly and rearwardly in a well-known manner until it comes to rest against the gin pole, to which it then is pinned, as shown in dottedlines in FIG. 3.
  • the drawworks and the rotary table 33 can be set 'onthe floor support 3 while it is resting on the base 1, and the foot of the mast can be 7 pivoted to the reclining setbacksupport 11 in a position 2, this pulls the mast backward toward the gin pole and causes it to swing the setback support 11 upwardly and back to an upright position, in which brackets 22 on its not far from the ground.
  • the different members are raised in succession to their elevated or upright opcrating-positions.
  • the'procedure described simply reversed.
  • the mast is raised first, followed by the setback support.
  • the base' is not provided with araised central portion like the one first described, although it could be.
  • the floor supportmember 36 with the rotary table 37 and drawworks 38 and gin pole 39 mounted on it, rests on the rear end portion of a base 40.
  • the foot end of a setback support member 42 is pivotally connected to the front end portion'of the base and extends forward along the ground in front of it.
  • the foot end of the reclining mast 43 is not connected to the setback support. but is pivotally connected to brackets 44 rigidly mounted on the front end of the floor support.
  • a sling line 48 is looped over the hook of the traveling block and extends back beneath sheaves 49 in the mast and then up and around a'pair of sheaves 50 supported by the top of the gin pole and then forward to anchor brackets 51 on the upper side of the reclining mast.
  • the sling swings the mast upwardly in the usual way and back against the gin pole, to which it is then fastened.
  • the traveling block then is lowered and the sling line is disconnected from the gin pole and passed down and under sheaves 53 mounted on the floor support. From these sheaves the sling extends forward to brackets 54 on the upper surface of the reclining setback support near its front end.
  • the drawworks is again operated to raise the traveling block, the sling swingsthe setback support upwardly and back to upright position, where brackets 55 attached to it can be pinned to brackets 56 on the base as shown in FIG. 7.
  • Oil well drilling apparatus comprising a base having front and rear ends, parallel reclining front and back links extending lengthwise of the base, means pivotally connecting the front ends of the links to longitudinally spaced points on the base, an elevatable floor support member, means pivotally connecting the rear ends of the links to longitudinally spaced points on said member, a gin'pole mounted on said member, a reclining setback support member having a foot end pivotally connected to said base in front of said links, said setback support member extending forward away from said floor support member, a reclining forwardly extending mast member having a foot end pivotally connected to the front end of one of said support members, means for swinging one of said pivotally connected members upwardly and rearwardly on its foot end to upright position, means for swinging another of said members up to raised position, and means for then swinging the remaining member up to raised position, whereby the mast member will be upright on the raised floor support member behind the upright setback support member.
  • Oil well drilling apparatus in which it is the front end of the setback support member to which the foot end'of the mast member is pivotally connected, and in which said means for swinging include drawworks mounted on said floor support member, a traveling block in the mast member, a line supported by the mast member and connected to the drawworks for pulling the block toward the head of the mast member, a sling connected at one end with the traveling block, and means for first connecting the opposite end of the sling with the gin pole to raise the reclining setback support member and the foot of the reclining mast member together and for then connecting the sling with the floor support member to swing it upwardly and forward toward the raised setback support member and for then connecting the sling'with the gin pole again to swing the reclining mast member upwardly and back against the gin pole to upright position.
  • Oil well drilling apparatus in which said last-mentioned means include means for first anchoring said opposite end of the'sling to the top of the gin pole, means for later anchoring said opposite end of the sling to the floor support member,'sheave means mounted onthe top of the gin pole, and means for anchoring said opposite end of the sling to the upper side of the reclining mast member with the sling extending therefrom down around the back of said sheave means and forward to the traveling block.
  • Oil well drilling apparatus in which it is the front end of the floor support member to which the foot end of the mast member is pivotally connected, and in which said means for swinging include drawworks mounted on said floor support member, a traveling block in the mast member, a line supported by the mast member and connected to the drawworks for pulling the block toward the headpf the mast member, a sling connected at one end with the traveling block, and means for first connecting the opposite end of the sling with the ginpole to swing the mast member up to upright position and for then connecting the sling with both the floor support member and setback support member to first raise the setback support member and then swing the floor support member and upright mast member upwardly and forward toward the raised setback support member.
  • oil well drilling apparatus in which said last-mentioned means include sheave means mounted on the top of the gin pole, means for first anchoring said opposite end of the sling'to the upper side of the reclining mast member with the sling extending therefrom down around the back of said sheave means and forward to the traveling block, sheave means mounted on said floor support member, and means for later anchoring said opposite end of the sling to the upper part of the raised setback support member with the sling extending therefrom down under said lastmentioned sheave means and up to the traveling block.
  • said last-mentioned means include sheave means mounted on the top of the gin pole, means for first anchoring said opposite end of the sling'to the upper side of the reclining mast member with the sling extending therefrom down around the back of said sheave means and forward to the traveling block, sheave means mounted on said floor support member, and means for later anchoring said opposite end of the sling to the upper part of the raised setback

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
US00299011A 1972-10-19 1972-10-19 Oil well drilling apparatus Expired - Lifetime US3807109A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00299011A US3807109A (en) 1972-10-19 1972-10-19 Oil well drilling apparatus
GB3058273A GB1389152A (en) 1972-10-19 1973-06-27 Oil well drilling apparatus
AU57554/73A AU472298B2 (en) 1972-10-19 1973-06-29 Oilwell drilling apparatus
CA176,568A CA961027A (en) 1972-10-19 1973-07-16 Oil well drilling apparatus
FR7328734A FR2203933B1 (it) 1972-10-19 1973-08-06
JP11063473A JPS549961B2 (it) 1972-10-19 1973-10-03
IT29769/73A IT995613B (it) 1972-10-19 1973-10-05 Apparecchiatura per la perforazione di pozzi petroliferi
NL737314337A NL155334B (nl) 1972-10-19 1973-10-18 Boortoren.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00299011A US3807109A (en) 1972-10-19 1972-10-19 Oil well drilling apparatus

Publications (1)

Publication Number Publication Date
US3807109A true US3807109A (en) 1974-04-30

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ID=23152948

Family Applications (1)

Application Number Title Priority Date Filing Date
US00299011A Expired - Lifetime US3807109A (en) 1972-10-19 1972-10-19 Oil well drilling apparatus

Country Status (8)

Country Link
US (1) US3807109A (it)
JP (1) JPS549961B2 (it)
AU (1) AU472298B2 (it)
CA (1) CA961027A (it)
FR (1) FR2203933B1 (it)
GB (1) GB1389152A (it)
IT (1) IT995613B (it)
NL (1) NL155334B (it)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922825A (en) * 1973-04-20 1975-12-02 Dresser Ind System for erecting an oil well derrick
US3942593A (en) * 1973-10-17 1976-03-09 Cabot Corporation Drill rig apparatus
US4009544A (en) * 1975-07-07 1977-03-01 Parker Drilling Company, Inc. Drilling rig with improved mast support structure
US4135340A (en) * 1977-03-08 1979-01-23 Chloride Group Limited Modular drill rig erection systems
US4221088A (en) * 1979-01-02 1980-09-09 Pre Corporation Mfg. Co. Low lift, elevatable high floor drilling mast and substructure arrangement therefor
US4366650A (en) * 1980-08-04 1983-01-04 Pre Corporation Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location
US4375241A (en) * 1979-04-11 1983-03-01 Union Industrielle Et D'entreprise Drilling installation, more specifically for oil-drilling operations
US4471587A (en) * 1982-02-22 1984-09-18 Continental Emsco Dual swing-up elevator well drilling apparatus
US4489526A (en) * 1983-03-08 1984-12-25 Skytop Brewster Company Drill rig elevating floor structure
US4569168A (en) * 1982-09-20 1986-02-11 P J Repair Service, Inc. Self-elevating substructure for a portable oil derrick
US4587778A (en) * 1984-10-05 1986-05-13 Lee C. Moore Corporation Method and apparatus for erecting a drilling rig mast
US4831795A (en) * 1985-07-10 1989-05-23 Sorokan Ronald S Drilling derrick assembly
US20040211598A1 (en) * 2003-04-25 2004-10-28 National Oilwell Inc. Fast moving drilling rig
US20050193645A1 (en) * 2004-03-02 2005-09-08 Barnes R. M. Automatic method for installing mobile drilling rig at a drilling site
US7308953B2 (en) * 2004-03-02 2007-12-18 Barnes R Michael Mobile drilling rig
WO2009001133A2 (en) * 2007-06-28 2008-12-31 National Oilwell Varco, L.P. Land rig
US20090200856A1 (en) * 2008-02-13 2009-08-13 Chehade Elie J Methods and systems for raising and lowering a rig mast and substructure by remote control
US20090218137A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rig drawworks installation
US20090218139A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rigs and erection methods
US20090218144A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rig masts and methods of assembly and erecting masts
US20090218138A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rig structure installation and methods
US20090283324A1 (en) * 2008-05-15 2009-11-19 Kameron Wayne Konduc Mobile drilling rig
WO2011017584A2 (en) 2009-08-07 2011-02-10 National Oilwell Varco, L.P. Drilling rig with hinged, retractable outriggers
US20110072737A1 (en) * 2009-09-28 2011-03-31 International Drilling Equipment Company, Llc Portable drilling rig apparatus and assembly method
WO2013032600A2 (en) 2011-08-31 2013-03-07 National Oilwell Varco, L.P. Pinned structural connection using a pin and plug arrangement
DE102012209988A1 (de) * 2012-03-20 2013-10-10 Bentec Gmbh Drilling & Oilfield Systems Unterbaumodul für eine mobile Landbohranlage und Verfahren zum Auf- und Abbau solcher Unterbaumodule
US20130269268A1 (en) * 2012-04-17 2013-10-17 National Oilwell Varco, L.P. Mobile drilling rig with telescoping substructure boxes
US9091125B2 (en) 2012-01-16 2015-07-28 National Oilwell Varco, L.P. Collapsible substructure for a mobile drilling rig
US9464488B2 (en) 2013-09-30 2016-10-11 National Oilwell Varco, L.P. Performing simultaneous operations on multiple wellbore locations using a single mobile drilling rig
US9512676B2 (en) * 2015-03-05 2016-12-06 Patterson-Uti Drilling Company Llc Mast leg pulley
US9650840B2 (en) 2015-04-27 2017-05-16 National Oilwell Varco, L.P. Method and apparatus for erecting a drilling rig
US9677298B2 (en) 2014-07-14 2017-06-13 Dreco Energy Services Ulc Mobile drilling rig
US9970211B2 (en) 2016-05-02 2018-05-15 Dreco Energy Services Ulc Guide rails for mobile drilling rig
US9988807B2 (en) * 2016-02-24 2018-06-05 National Oilwell Varco, L.P. Drilling rig with self-elevating drill floor
US10822924B2 (en) 2016-03-07 2020-11-03 National Oilwell Varco, L.P. Multi-well bop cellar trailer
US11021186B2 (en) 2016-10-05 2021-06-01 Dreco Energy Services Ulc Movable rig and steering system
US11454067B2 (en) 2018-08-06 2022-09-27 Nov Canada Ulc Drill floor support structures
US11603723B2 (en) 2019-08-30 2023-03-14 Nov Canada Ulc Cuttings processing unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478015A (en) * 1982-09-07 1984-10-23 Lawrence Larry K Cable sling arrangement for pivoting a drilling mast and drawworks elevator to a raised or reclined position in relation to a substructure support and method of cable sling string up

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690526A (en) * 1951-05-28 1953-04-22 Moore Corp Lee C Improvements in or relating to a substructure for a mast
US3050159A (en) * 1960-01-12 1962-08-21 Barber Greene Co Self-erecting portable mixing plant or the like
GB994663A (en) * 1960-12-09 1965-06-10 Moore Corp Lee C Portable oil well drilling apparatus
US3201091A (en) * 1960-12-09 1965-08-17 Moore Corp Lee C Portable oil well drilling apparatus
US3228151A (en) * 1962-02-15 1966-01-11 Moore Corp Lee C Drilling apparatus for deep oil wells
US3483933A (en) * 1967-11-24 1969-12-16 Dresser Ind Oil derrick erection and support system
US3747695A (en) * 1971-04-06 1973-07-24 Pyramid Derick And Equipment C High floor pivoted mast drilling rig
US3749183A (en) * 1971-11-10 1973-07-31 Pyramid Derrick & Equipment Co Deep well drilling apparatus
US3754361A (en) * 1972-06-26 1973-08-28 Pyramid Derrick & Equipment Transportable drilling mast substructure with elevatable drawworks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302147A (fr) * 1961-09-28 1962-08-24 Moore Corp Lee C Installation mobile de forage, en particulier pour le forage de puits de pétrole

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690526A (en) * 1951-05-28 1953-04-22 Moore Corp Lee C Improvements in or relating to a substructure for a mast
US3050159A (en) * 1960-01-12 1962-08-21 Barber Greene Co Self-erecting portable mixing plant or the like
GB994663A (en) * 1960-12-09 1965-06-10 Moore Corp Lee C Portable oil well drilling apparatus
US3201091A (en) * 1960-12-09 1965-08-17 Moore Corp Lee C Portable oil well drilling apparatus
US3228151A (en) * 1962-02-15 1966-01-11 Moore Corp Lee C Drilling apparatus for deep oil wells
US3483933A (en) * 1967-11-24 1969-12-16 Dresser Ind Oil derrick erection and support system
US3747695A (en) * 1971-04-06 1973-07-24 Pyramid Derick And Equipment C High floor pivoted mast drilling rig
US3749183A (en) * 1971-11-10 1973-07-31 Pyramid Derrick & Equipment Co Deep well drilling apparatus
US3754361A (en) * 1972-06-26 1973-08-28 Pyramid Derrick & Equipment Transportable drilling mast substructure with elevatable drawworks

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922825A (en) * 1973-04-20 1975-12-02 Dresser Ind System for erecting an oil well derrick
US3942593A (en) * 1973-10-17 1976-03-09 Cabot Corporation Drill rig apparatus
US4009544A (en) * 1975-07-07 1977-03-01 Parker Drilling Company, Inc. Drilling rig with improved mast support structure
US4135340A (en) * 1977-03-08 1979-01-23 Chloride Group Limited Modular drill rig erection systems
US4221088A (en) * 1979-01-02 1980-09-09 Pre Corporation Mfg. Co. Low lift, elevatable high floor drilling mast and substructure arrangement therefor
US4375241A (en) * 1979-04-11 1983-03-01 Union Industrielle Et D'entreprise Drilling installation, more specifically for oil-drilling operations
US4366650A (en) * 1980-08-04 1983-01-04 Pre Corporation Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location
US4471587A (en) * 1982-02-22 1984-09-18 Continental Emsco Dual swing-up elevator well drilling apparatus
US4569168A (en) * 1982-09-20 1986-02-11 P J Repair Service, Inc. Self-elevating substructure for a portable oil derrick
US4489526A (en) * 1983-03-08 1984-12-25 Skytop Brewster Company Drill rig elevating floor structure
US4587778A (en) * 1984-10-05 1986-05-13 Lee C. Moore Corporation Method and apparatus for erecting a drilling rig mast
US4831795A (en) * 1985-07-10 1989-05-23 Sorokan Ronald S Drilling derrick assembly
US20040211598A1 (en) * 2003-04-25 2004-10-28 National Oilwell Inc. Fast moving drilling rig
EP2639399A1 (en) * 2003-04-25 2013-09-18 National-Oilwell, L.P. Fast moving drilling rig
US7765749B2 (en) * 2003-04-25 2010-08-03 National Oilwell, L.P. Fast moving drilling rig
US20050193645A1 (en) * 2004-03-02 2005-09-08 Barnes R. M. Automatic method for installing mobile drilling rig at a drilling site
US7306055B2 (en) * 2004-03-02 2007-12-11 Barnes R Michael Automatic method for installing mobile drilling rig at a drilling site
US7308953B2 (en) * 2004-03-02 2007-12-18 Barnes R Michael Mobile drilling rig
WO2009001133A2 (en) * 2007-06-28 2008-12-31 National Oilwell Varco, L.P. Land rig
US20090000218A1 (en) * 2007-06-28 2009-01-01 Douglas Wayne Lee Land rig
CN103321581B (zh) * 2007-06-28 2015-10-28 国民油井华高有限合伙公司 陆上钻机
CN101809248B (zh) * 2007-06-28 2015-08-19 国民油井华高有限合伙公司 陆上钻机
CN103321581A (zh) * 2007-06-28 2013-09-25 国民油井华高有限合伙公司 陆上钻机
WO2009001133A3 (en) * 2007-06-28 2010-04-29 National Oilwell Varco, L.P. Land rig
US20090200856A1 (en) * 2008-02-13 2009-08-13 Chehade Elie J Methods and systems for raising and lowering a rig mast and substructure by remote control
US8250816B2 (en) 2008-02-29 2012-08-28 National Oilwell Varco L.P. Drilling rig structure installation and methods
US20090218138A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rig structure installation and methods
WO2009106860A3 (en) * 2008-02-29 2011-01-06 National Oilwell Varco, L.P. Method and apparatus for facilitating assembly and erection of a drilling rig
US20090218139A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rigs and erection methods
US8813436B2 (en) 2008-02-29 2014-08-26 National Oilwell Varco, L.P. Pinned structural connection using a pin and plug arrangement
CN102016219A (zh) * 2008-02-29 2011-04-13 国民油井华高有限合伙公司 便于组装和架设钻机的方法与设备
US8047303B2 (en) 2008-02-29 2011-11-01 National Oilwell Varco L.P. Drilling rig drawworks installation
WO2009106860A2 (en) * 2008-02-29 2009-09-03 National Oilwell Varco, L.P. Method and apparatus for facilitating assembly and erection of a drilling rig
CN102016219B (zh) * 2008-02-29 2013-11-06 国民油井华高有限合伙公司 便于组装和架设钻机的方法与设备
US8468753B2 (en) * 2008-02-29 2013-06-25 National Oilwell Varco L.P. Drilling rigs and erection methods
US8549815B2 (en) 2008-02-29 2013-10-08 National Oilwell Varco L.P. Drilling rig masts and methods of assembly and erecting masts
US20090218137A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rig drawworks installation
US20090218144A1 (en) * 2008-02-29 2009-09-03 Robert Benjamin Donnally Drilling rig masts and methods of assembly and erecting masts
US8516751B2 (en) 2008-05-15 2013-08-27 National Oilwell Varco L.P. Mobile drilling rig
US20090283324A1 (en) * 2008-05-15 2009-11-19 Kameron Wayne Konduc Mobile drilling rig
WO2011017584A2 (en) 2009-08-07 2011-02-10 National Oilwell Varco, L.P. Drilling rig with hinged, retractable outriggers
US20110072737A1 (en) * 2009-09-28 2011-03-31 International Drilling Equipment Company, Llc Portable drilling rig apparatus and assembly method
US8959874B2 (en) * 2009-09-28 2015-02-24 International Drilling Equipment Company, Llc Portable drilling rig apparatus and assembly method
WO2013032600A2 (en) 2011-08-31 2013-03-07 National Oilwell Varco, L.P. Pinned structural connection using a pin and plug arrangement
US9556676B2 (en) * 2012-01-16 2017-01-31 National Oilwell Varco, L.P. Collapsible substructure for a mobile drilling rig
US9091125B2 (en) 2012-01-16 2015-07-28 National Oilwell Varco, L.P. Collapsible substructure for a mobile drilling rig
US20150300091A1 (en) * 2012-01-16 2015-10-22 National Oilwell Varco, L.P. Collapsible substructure for a mobile drilling rig
DE102012209988A1 (de) * 2012-03-20 2013-10-10 Bentec Gmbh Drilling & Oilfield Systems Unterbaumodul für eine mobile Landbohranlage und Verfahren zum Auf- und Abbau solcher Unterbaumodule
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Also Published As

Publication number Publication date
JPS4974102A (it) 1974-07-17
AU5755473A (en) 1975-01-09
FR2203933B1 (it) 1976-06-18
NL155334B (nl) 1977-12-15
GB1389152A (en) 1975-04-03
AU472298B2 (en) 1976-05-20
CA961027A (en) 1975-01-14
FR2203933A1 (it) 1974-05-17
JPS549961B2 (it) 1979-04-28
NL7314337A (it) 1974-04-23
IT995613B (it) 1975-11-20

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