EP2898172B1 - Système pour forage d'exploration et de production de pétrole et de gaz - Google Patents

Système pour forage d'exploration et de production de pétrole et de gaz Download PDF

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Publication number
EP2898172B1
EP2898172B1 EP13839937.3A EP13839937A EP2898172B1 EP 2898172 B1 EP2898172 B1 EP 2898172B1 EP 13839937 A EP13839937 A EP 13839937A EP 2898172 B1 EP2898172 B1 EP 2898172B1
Authority
EP
European Patent Office
Prior art keywords
drill
line
string
power
signal line
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.)
Active
Application number
EP13839937.3A
Other languages
German (de)
English (en)
Other versions
EP2898172A1 (fr
EP2898172A4 (fr
Inventor
Per Olav Haughom
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.)
NORHARD GEO AS
Original Assignee
Norhard Geo As
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Filing date
Publication date
Application filed by Norhard Geo As filed Critical Norhard Geo As
Publication of EP2898172A1 publication Critical patent/EP2898172A1/fr
Publication of EP2898172A4 publication Critical patent/EP2898172A4/fr
Application granted granted Critical
Publication of EP2898172B1 publication Critical patent/EP2898172B1/fr
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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
    • 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • 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
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells

Definitions

  • a system for exploration and production drilling for oil and gas or other fluids to be recovered from bedrock including a non-rotatable drill string formed from several connectable drill-string sections, a bottom-hole assembly provided with a rotatable drill bit connected to a drill-bit drive, the drill string being provided with first and second line grooves arranged to receive, respectively, a fluid line and a power and signal line.
  • Drilling oil and gas wells has become constantly more challenging with respect to both directional control and communication between downhole equipment and a surface installation.
  • the demand for efficiency and profitability is increasing as well.
  • drilling operations are substantially carried out with equipment in which a drill string that consists of sections of pipe connections screwed together is rotating in its entire length.
  • the rotation of the drill string is transmitted to a drill bit, and drilling fluid is supplied through a centric hole in the drill string and carries cuttings away from the drill bit and out of the borehole through an annulus formed between the drill string and the borehole, possibly between the drill string and a surrounding casing or riser.
  • the drill bit is rotated by a motor that sits between the drill string and the drill bit, for example by deviation drilling in horizontal well portions.
  • US5092411 A discloses a drilling apparatus used for drilling shot holes, with a carriage for advancing and withdrawing the drilling rod that comprises a plurality of sections, an advance system, a pressure-operated drive system for the drilling rod, a flushing head that is arranged on the carriage, which can be moved either with or apart from the drilling rods, and a hydraulically operated in-hole hammer that is arranged on the front end of the drilling rod.
  • the compressed air operated drive for the drilling rods transmits a back and forth oscillatory movement to the drilling rods.
  • the drilling rods have two longitudinal channels that are open to the outside, and which serve to accommodate the hoses used for the feed and return lines for the hydraulic oil for the in-hole hammer. Flushing air is supplied through the hollow drilling rods.
  • the transfer of torque to the drilling rods is effected by an interlocking shape-fit preferably through profiling of the drilling rods, or by a force fit.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art or at least provide a useful alternative to the prior art.
  • the object is achieved through features, which are specified in the description below and in the claims that follow.
  • the invention provides a system for exploration and production drilling for oil and gas or other fluids, which are to be recovered from bedrock. From a drilling rig, an assembled, non-rotating drill string is fed in a conventional manner known per se.
  • the drill string is extendable and is made up of several drill-string sections and provides several, longitudinal, continuous grooves, which can accommodate fluid-, power- and signal-transferring lines extending between a surface installation and a bottom-hole assembly.
  • the bottom-hole assembly includes a drill-bit drive, preferably an electric motor, which, by a stator, is non-rotatably connected to the drill string, and a rotor is connected to the drill bit in order thereby to provide rotation of the drill bit relative to the drill string.
  • the lines are inserted into their recesses from respective line drums, the supplies of fluid, power or control signals, possibly a return of a borehole data signal, running through suitable swivels, slip rings, optical transmissions and so on between the static and rotating parts of a drum unit.
  • drilling fluid is pumped continuously through a fluid line to the drill bit, which is rotated by means of the drill-bit drive, preferably by the supply of electrical power to an electromotor.
  • connection and feeding equipment is arranged, which makes it possible for drill-string sections to be connected and fed into the borehole in an approximately continuous process.
  • the lines for drilling mud, power and signal transmission are inserted into the respective grooves in the drill string in a continuous process.
  • the drill string is lowered and lifted by means of a chain structure with two continuous, electrically or hydraulically operated chains.
  • the chains are pressed against the drill string by hydraulic cylinders to achieve sufficient friction.
  • the drill-string sections are connected by means of drill-string connections, which are locked in the connected position by means of one or more locking elements at each joint.
  • the invention relates, more specifically, to a system according to claim 1.
  • the drill string connection may include a locking element.
  • the power and signal line may be formed of a separate power line and a separate signal line.
  • the power and signal line may be formed of a separate power line and a separate signal line, the power line being partially accommodated in a groove in the signal line.
  • the lines 36a, 36b are passed through sealing stuffing boxes 231, 232 in a feeder 23 into abutment in their respective line grooves 34a, 34b.
  • the feeding device 22 for the drill string 3 works synchronously with the feeder 23 for the lines 36a, 36b.
  • FIG 5 shows the feeding device 22 for the drill string 3 in greater detail.
  • the feeding device 22 includes a stuffing box 221, which fits tightly against the drill string 3, and two feeding belts 222 bearing clampingly against the drill string 3.
  • the clamping effect is provided by means of actuators, not shown, for example hydraulic cylinders, and ensures that the drill string 3 is held in a secure grip.
  • FIG 8d shows an alternative exemplary embodiment of the power and signal line, it being formed of a separate power line 36ba and a separate signal line 36bb. In this embodiment, it is appropriate to provide the surface installation 1 with a further line drum (not shown) and the feeder 23 with a further stuffing box (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Claims (4)

  1. Un système pour le forage d'exploration et de production de pétrole et de gaz ou d'autres fluides destinés à être récupérés à partir d'un lit rocheux, incluant un train de tiges de forage non rotatif (3) constitué de plusieurs sections de train de tiges de forage pouvant être reliées (31, 31a, 31b), un ensemble de fond de trou (37) comportant un trépan de forage rotatif (37a) relié à un entraînement de trépan de forage (37b), le train de tiges de forage (3) comportant une première et seconde rainure à ligne (34a, 34b) agencées pour recevoir, respectivement, une ligne de fluide (36a) et une ligne de courant et de signaux (36b), caractérisé en ce que au niveau de leurs parties d'extrémité respectives, les sections de train de tiges de forage (31, 31a, 31b) comportant une liaison de trains de tiges de forage asymétrique (32) du type rainure et languette, une rainure (321) et une languette adéquate complémentaire (322) pouvant être reliées par coulissement de la section de train de tiges de forage (31, 31a, 31b) en travers de la direction axiale du train de tiges de forage (3), dans lequel une plate-forme de forage (2) comporte une alimentation de ligne (23) et une presse-étoupe (231, 232) disposée pour faire passer la ligne de fluide (36a) et la ligne de courant et de signaux (36b) depuis l'alimentation de ligne (23) en butée dans les rainures à ligne (34a, 34b) respectives du train de tiges de forage (3).
  2. Le système selon la revendication 1, dans lequel la liaison de trains de tiges de forage (32) inclut un élément de verrouillage (33).
  3. Le système selon la revendication 1, dans lequel la ligne de courant et de signaux (36b) est formée d'une ligne de courant séparée (36ba) et d'une ligne de signaux séparée (36bb).
  4. Le système selon la revendication 1, dans lequel la ligne de courant et de signaux (36b) est formée d'une ligne de courant séparée (36ba) et d'une ligne de signaux séparée (36bb), la la ligne de courant séparée (36ba) étant partiellement accommodée dans une rainure (36bc) dans la ligne de signaux séparée (36bb).
EP13839937.3A 2012-09-18 2013-09-16 Système pour forage d'exploration et de production de pétrole et de gaz Active EP2898172B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20121063 2012-09-18
NO20131157A NO342845B1 (no) 2012-09-18 2013-08-30 System for lete- og produksjonsboring etter olje og gass
PCT/NO2013/050157 WO2014046548A1 (fr) 2012-09-18 2013-09-16 Système pour forage d'exploration et de production de pétrole et de gaz

Publications (3)

Publication Number Publication Date
EP2898172A1 EP2898172A1 (fr) 2015-07-29
EP2898172A4 EP2898172A4 (fr) 2016-06-08
EP2898172B1 true EP2898172B1 (fr) 2017-11-15

Family

ID=50341734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13839937.3A Active EP2898172B1 (fr) 2012-09-18 2013-09-16 Système pour forage d'exploration et de production de pétrole et de gaz

Country Status (3)

Country Link
EP (1) EP2898172B1 (fr)
NO (1) NO342845B1 (fr)
WO (1) WO2014046548A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20150994A1 (no) * 2014-10-29 2016-05-02 Norhard Oil & Gas As Apparat for plugging av en hydrokarbonbrønn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1331776A (en) * 1918-07-15 1920-02-24 Daniel L Lewis Rod-coupling
DE3842081A1 (de) * 1988-03-15 1989-09-28 Hausherr & Soehne Rudolf Bohrgeraet
US5950744A (en) * 1997-10-14 1999-09-14 Hughes; W. James Method and apparatus for aligning drill pipe and tubing
US20110180273A1 (en) * 2010-01-28 2011-07-28 Sunstone Technologies, Llc Tapered Spline Connection for Drill Pipe, Casing, and Tubing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
NO20131157A1 (no) 2014-03-19
EP2898172A1 (fr) 2015-07-29
NO342845B1 (no) 2018-08-20
WO2014046548A1 (fr) 2014-03-27
EP2898172A4 (fr) 2016-06-08

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