EP0280294A2 - Train de tiges d'essai pour puits profonds - Google Patents

Train de tiges d'essai pour puits profonds Download PDF

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Publication number
EP0280294A2
EP0280294A2 EP88102813A EP88102813A EP0280294A2 EP 0280294 A2 EP0280294 A2 EP 0280294A2 EP 88102813 A EP88102813 A EP 88102813A EP 88102813 A EP88102813 A EP 88102813A EP 0280294 A2 EP0280294 A2 EP 0280294A2
Authority
EP
European Patent Office
Prior art keywords
test tube
stator
test
tube string
operating position
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
EP88102813A
Other languages
German (de)
English (en)
Other versions
EP0280294A3 (en
EP0280294B1 (fr
Inventor
Joachim Dr. Köpper
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
Eastman Teleco 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, Eastman Teleco Co filed Critical Eastman Christensen Co
Priority to AT88102813T priority Critical patent/ATE79661T1/de
Publication of EP0280294A2 publication Critical patent/EP0280294A2/fr
Publication of EP0280294A3 publication Critical patent/EP0280294A3/de
Application granted granted Critical
Publication of EP0280294B1 publication Critical patent/EP0280294B1/fr
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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
    • E21B49/088—Well testing, e.g. testing for reservoir productivity or formation parameters combined with sampling
    • 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
    • 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
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/084—Obtaining fluid samples or testing fluids, in boreholes or wells with means for conveying samples through pipe to surface
    • 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
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits

Definitions

  • the invention relates to a test pipe string for examining underground deposits of pumpable media drilled through a deep bore in an embodiment in accordance with the preamble of claim 1.
  • Test tube strands of the type mentioned are used in particular for the investigation of deposits with respect to formation intrinsic pressures, from which conclusions can be drawn regarding possible production quantities. With the help of the test pipe string inserted into the borehole, it is possible to close the borehole and to measure the course of the formation pressure building up and to transmit the measured values to the earth's surface. If interesting funding expectations result from the measurement results, samples of the medium are taken for examination, and test funding may be carried out over several hours.
  • delivery pumps consisting of a stator and a rotor, in particular Moineau pumps, are used, which either form a permanent part of the test conveyor line or are installed in the latter if necessary. In the latter case, it is necessary to catch up the entire test tube string from the bore and to install a feed pump in it, after which the test tube string has to be retracted before the sampling or. the test funding operation can be carried out.
  • test tube strings with a permanently installed feed pump do not require the aforementioned work before sampling or test operation is carried out, but test feed strings with a permanently installed feed pump are very costly, which increases the costs of the deposit investigation undesirably in all cases in which the deposits already increase after the Show pressure measurement results as uninteresting.
  • the bearing seals of a delivery pump that is permanently installed in the test pipe string which avoid pressure equalization from annulus to delivery area, fail at high pressure loads, which leads to pressure equalization between the delivery and annulus areas of the bore and requires extensive repair work.
  • the invention is based on the object of creating a simple, reliable and inexpensive test tube string which, if necessary, can be retrofitted to carry out sampling or test funding without removing the test tube string.
  • the invention solves the problem on the basis of a test pipe string according to the preamble of claim 1 with the features specified in the characterizing part of the claim. With regard to essential further refinements, reference is made to claims 2 to 8.
  • test pipe string is simple and inexpensive and can be used for test purposes at high pressure loads without any risk of sealing. If it turns out that a sampling or a test conveyor operation is expedient, the test conveyor train can be quickly and easily added to one which can now carry out a conveyor operation. This is done by retracting the rotor or the rotor / stator unit by means of the drive linkage for the rotor from the surface of the earth, it being possible for the test conveyor train to remain in its installed position.
  • Fig. 1 illustrates a test tubing string T according to the invention in a test position in a borehole 1 that cased, i.e. is provided with a lining 2 or casing.
  • the test pipe string T delimits an annulus 3 with the lining 2 of the borehole 1, which is closed near the lower end by a packer 4 and at the upper end by a pressure-tight connection of the lining 2 and the test pipe string T at 5.
  • the test tube string T comprises a test section 6, which has a perforation area 7 near its lower end and comprises measuring devices (not shown) as are customary and known for such test tube strands.
  • the packer 4 is located directly above the perforation area 7 of the test section 6.
  • the stator 8 of a feed pump which is designed as a Moineau pump, is located above the test section 6.
  • the housing 9 of the stator 8 is inserted as part of the test tube string T therein and is screwed to the string areas adjacent to the top and bottom sides at 10 and 11, respectively.
  • the rotor 12 of the feed pump is attached to the lower end of a special drive linkage 13, by means of which it can be lowered from the head of the borehole 1 into the test pipe string T already installed in the borehole 1, 2 for test purposes, into an operating position in which it is in a Conveyor operating position is within the stator 8 of the feed pump. 1 shows the rotor 12 when it is lowered into the operating position shortly before the stator 8 is reached.
  • the drive linkage 13 is driven by a drive motor M which, in the operating position of the parts for a sampling or test conveyor operation, closes the upper end of the test tube string T with its housing 14 and has a sealed bearing at 15 for its drive shaft 16 connected to the drive linkage 13.
  • stator 8 and the rotor 12 form a pump unit P that can be moved into and pulled out of the test tube string T into the operating position by means of the drive rod 13, and the housing 9 of the stator 8 is in the operating position of the pump unit P. in the test tube string T sealed against this and secured against twisting.
  • test tube string T is provided with a support tube section 17 which is provided on the inside with an anti-rotation profile 18, e.g. a polygonal profile, a multi-spline profile or the like is provided, and the housing 9 of the stator 8 has a corresponding counter profile 19 on its outside.
  • an anti-rotation profile 18 e.g. a polygonal profile, a multi-spline profile or the like is provided, and the housing 9 of the stator 8 has a corresponding counter profile 19 on its outside.
  • the support tube section 17 is provided in a region below the anti-rotation profile 18 with a constriction region 20 and carries in this a circumferential seal 21 which is in sealing engagement with the profile-free lower end of the housing 9 of the stator 8 in the operating position of the pump unit P.
  • the rotor 12 which is axially displaceable to a limited extent in its stator 8 is provided with a stop 22 and 23 at a distance above and below its working part.
  • the housing 9 of the stator 8 also has an upper stop 24 and a lower stop 25, and when the pump unit P is moved into the test tube string or when it is pulled up, the stops 22, 23 alternately take along with the stops 24 and 25. or support intervention.
  • stator 8 While when the pump unit P is retracted, the stator 8 initially rests on the stop 23 of the rotor 12 via its stop 25, if necessary and in the event of resistance from the upper stop 22, the rotor 12 can have a downward pressure force on the stator 8 via the stop 24 of the stator 8 exercise.
  • the stops 22, 23 also secure the stator 8 against undesired displacement during operation, it being understood, however, that during operation the stops 22, 23 are out of engagement with the stops 24, 25 of the stator 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geophysics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Lubricants (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP88102813A 1987-02-27 1988-02-25 Train de tiges d'essai pour puits profonds Expired - Lifetime EP0280294B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102813T ATE79661T1 (de) 1987-02-27 1988-02-25 Testrohrstrang fuer tiefbohrungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3706378A DE3706378C1 (de) 1987-02-27 1987-02-27 Testrohrstrang fuer Tiefbohrungen
DE3706378 1987-02-27

Publications (3)

Publication Number Publication Date
EP0280294A2 true EP0280294A2 (fr) 1988-08-31
EP0280294A3 EP0280294A3 (en) 1989-10-04
EP0280294B1 EP0280294B1 (fr) 1992-08-19

Family

ID=6321930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102813A Expired - Lifetime EP0280294B1 (fr) 1987-02-27 1988-02-25 Train de tiges d'essai pour puits profonds

Country Status (3)

Country Link
EP (1) EP0280294B1 (fr)
AT (1) ATE79661T1 (fr)
DE (1) DE3706378C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482912A1 (fr) * 1990-10-23 1992-04-29 Halliburton Company Pompe de fond de puits pour essai de formation
WO1995030090A1 (fr) * 1994-04-29 1995-11-09 Houttuin B.V. Installation et procede d'extraction par pompage d'un liquide a partir de la croute terrestre
US10612542B2 (en) 2010-11-19 2020-04-07 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201019614D0 (en) 2010-11-19 2010-12-29 Eatec Ltd Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps
RU2605475C2 (ru) * 2012-05-24 2016-12-20 Шлюмбергер Текнолоджи Б.В. Устройство и способ регулирования или ограничения орбиты ротора в винтовых двигателях или насосах

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
EP0482912A1 (fr) * 1990-10-23 1992-04-29 Halliburton Company Pompe de fond de puits pour essai de formation
WO1995030090A1 (fr) * 1994-04-29 1995-11-09 Houttuin B.V. Installation et procede d'extraction par pompage d'un liquide a partir de la croute terrestre
US10612542B2 (en) 2010-11-19 2020-04-07 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Also Published As

Publication number Publication date
EP0280294A3 (en) 1989-10-04
ATE79661T1 (de) 1992-09-15
DE3706378C1 (de) 1988-08-18
EP0280294B1 (fr) 1992-08-19

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