EP0284780A2 - Train de tubes de production pour puits profonds - Google Patents

Train de tubes de production pour puits profonds Download PDF

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Publication number
EP0284780A2
EP0284780A2 EP88102812A EP88102812A EP0284780A2 EP 0284780 A2 EP0284780 A2 EP 0284780A2 EP 88102812 A EP88102812 A EP 88102812A EP 88102812 A EP88102812 A EP 88102812A EP 0284780 A2 EP0284780 A2 EP 0284780A2
Authority
EP
European Patent Office
Prior art keywords
pipe string
stator
conveyor pipe
rotor
pump unit
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.)
Granted
Application number
EP88102812A
Other languages
German (de)
English (en)
Other versions
EP0284780A3 (en
EP0284780B1 (fr
Inventor
Thomas Jung
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.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Eastman Christensen 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 Eastman Christensen Co filed Critical Eastman Christensen Co
Priority to AT88102812T priority Critical patent/ATE71429T1/de
Publication of EP0284780A2 publication Critical patent/EP0284780A2/fr
Publication of EP0284780A3 publication Critical patent/EP0284780A3/de
Application granted granted Critical
Publication of EP0284780B1 publication Critical patent/EP0284780B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing

Definitions

  • the invention relates to a conveying pipe string which can be inserted into the borehole of a deep borehole for conveying pumpable media from the borehole in an embodiment according to the preamble of claim 1.
  • Production strings of this type are mainly used to extract oil or water-oil mixtures.
  • the housing of the stator forms the lower end of the conveyor pipe string, and the rotor is connected to the drive shaft of an above-ground drive motor via a separate drive linkage, to the lower end of which the rotor is attached.
  • stator of the feed pump of the replacement is required for such a feed pipe string or if maintenance or repair work has to be carried out on the stator or rotor of the feed pump, the entire feed pipe string together with the feed pump and drive linkage for the rotor must be removed from the borehole and after the work on the feed pump has been carried out be reinstalled in the borehole. This is a time-consuming and costly process with lengths of conveyor pipe strings of on average 500 to 1000 m.
  • the invention has for its object to provide a feed pipe string in which the stator of the feed pump is replaceable while the feed pipe string remains in the borehole or other work can be carried out on the feed pump.
  • the pump unit can be brought up relatively quickly and easily by means of the drive linkage to the head of the borehole and, after replacement or other repair or maintenance work, returned to its operating position within the lower end of the production pipe string, the production pipe string itself in its Installation position remains in the borehole.
  • the drawing illustrates a production tubing string 1 in an installed position in a borehole 2, which cased, i.e. is provided with a tubular lining 2 ⁇ .
  • a feed pump 3 in the operating position, which is designed as a Moineau pump and a stator 4 with housing 5 and lining 6 as well comprises a rotor 7.
  • a drive linkage 8 At the upper end of the rotor 7, the latter is connected to a drive linkage 8 which is led up through the conveyor pipe string 1 to its upper end at the head of the borehole 2 and is connected there to a drive shaft 9 of a drive motor 10, for example an electric or hydraulic motor .
  • the feed pump 3 forms a pump unit which can be pulled up and down as a whole by means of the drive linkage 8 through the feed pipe string 1.
  • the upper end of the conveyor pipe string 1 is closed by a closure plate 11 and its passage opening 12 for the drive linkage 8 by a housing part 13 of the drive motor 10, and a pressure-tight bearing, indicated at 14, for the drive shaft 9 of the drive motor 10 provides a pressure-tight closure of the interior 15 of the conveyor pipe string 1 at its upper end safely.
  • the conveyor pipe string is also connected pressure-tight at 17 to the lining 2 ⁇ in the borehole 2, so that the annular space 16 between the conveyor pipe string 1 and the lining 2 ⁇ is closed on the upper side.
  • the lower end of the conveyor tube 1 is formed by a support tube section 18 which is screwed to the region of the conveyor tube 1 adjacent to the top by means of a screw connection part 19.
  • the pump unit 3 which can be axially drawn up and lowered by the drive pipe string 1, assumes its operating position in which the housing 5 of the stator 4 is sealed against the support pipe section 18 and thus against the feed pipe string 1 and secured against rotation. All known and suitable means can be used for sealing and securing against rotation.
  • the support tube section 18 is provided on the inside with an anti-rotation profile 20, for example a polygonal profile, a multi-spline profile or the like, and the housing 5 of the stator 4 has a corresponding counter profile 21 on its outside.
  • the support tube section 18 is also provided in a region below the anti-rotation profile 20 with a constriction region 22 and carries in this a circumferential seal 23 which is in sealing engagement with the profile-free lower end of the housing 5 of the stator 4 in the operating position of the pump unit 3.
  • the rotor 7 which is axially displaceable to a limited extent in its stator 4, is provided with a stop 24 and 25 at a distance above and below its working part.
  • the housing 5 of the stator 4 also has an upper stop 26 or a lower stop 27, and when the pump unit 3 is moved into the delivery pipe string 1 or when it is pulled up, the stops 24, 25 alternate with the stops 26 and 27 in Driving or support intervention.
  • stator 4 While when the pump unit 3 is retracted, the stator 4 initially rests with its stop 27 on the stop 25 of the rotor 7, as is also the case when pulling up, if resistance occurs by means of the upper stop 24 on the upper stop 26 of the housing 5 the stator 4 a downward driving force can be exerted on this.
  • the stops 24, 25 also secure the stator 4 against undesired displacements during the conveying operation, but it goes without saying that in the conveying operation the stops 24, 25 are located out of engagement with the stops 26, 27 of the stator 4.

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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
EP88102812A 1987-02-27 1988-02-25 Train de tubes de production pour puits profonds Expired - Lifetime EP0284780B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102812T ATE71429T1 (de) 1987-02-27 1988-02-25 Foerderrohrstrang fuer tiefbohrungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3706377A DE3706377C1 (de) 1987-02-27 1987-02-27 Foerderrohrstrang fuer Tiefbohrungen
DE3706377 1987-02-27

Publications (3)

Publication Number Publication Date
EP0284780A2 true EP0284780A2 (fr) 1988-10-05
EP0284780A3 EP0284780A3 (en) 1989-10-11
EP0284780B1 EP0284780B1 (fr) 1992-01-08

Family

ID=6321929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102812A Expired - Lifetime EP0284780B1 (fr) 1987-02-27 1988-02-25 Train de tubes de production pour puits profonds

Country Status (3)

Country Link
EP (1) EP0284780B1 (fr)
AT (1) ATE71429T1 (fr)
DE (1) DE3706377C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001098660A3 (fr) * 2000-06-23 2002-04-11 Weatherford Lamb Appareil moteur / pompe a cavite progressive et a ajustement par serrage reglable et procede associe
US6457958B1 (en) 2001-03-27 2002-10-01 Weatherford/Lamb, Inc. Self compensating adjustable fit progressing cavity pump for oil-well applications with varying temperatures
DE102014102126A1 (de) * 2014-02-19 2015-08-20 Netzsch Pumpen & Systeme Gmbh Pumpsystem zum Fördern von viskosen oder teilviskosen Medien aus einem Bohrloch sowie Verfahren zur Entnahme einer Exzenterschneckenpumpe aus einem Bohrloch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2267459A (en) * 1939-01-09 1941-12-23 Fmc Corp Deep well pump
US3677665A (en) * 1971-05-07 1972-07-18 Husky Oil Ltd Submersible pump assembly
US4372379A (en) * 1981-10-06 1983-02-08 Corod Manufacturing Ltd. Rotary drive assembly for downhole rotary pump
DE3345233C2 (de) * 1983-12-14 1985-10-31 Joh. Heinrich Bornemann GmbH & Co KG, 3063 Obernkirchen Exzenterschneckenpumpe zum Fördern von Flüssigkeiten aus Bohrlöchern, insbesondere aus Erdöl-Bohrlöchern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001098660A3 (fr) * 2000-06-23 2002-04-11 Weatherford Lamb Appareil moteur / pompe a cavite progressive et a ajustement par serrage reglable et procede associe
US6457958B1 (en) 2001-03-27 2002-10-01 Weatherford/Lamb, Inc. Self compensating adjustable fit progressing cavity pump for oil-well applications with varying temperatures
DE102014102126A1 (de) * 2014-02-19 2015-08-20 Netzsch Pumpen & Systeme Gmbh Pumpsystem zum Fördern von viskosen oder teilviskosen Medien aus einem Bohrloch sowie Verfahren zur Entnahme einer Exzenterschneckenpumpe aus einem Bohrloch

Also Published As

Publication number Publication date
ATE71429T1 (de) 1992-01-15
EP0284780A3 (en) 1989-10-11
EP0284780B1 (fr) 1992-01-08
DE3706377C1 (de) 1988-09-08

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