US20120024603A1 - Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole - Google Patents

Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole Download PDF

Info

Publication number
US20120024603A1
US20120024603A1 US13/145,500 US201013145500A US2012024603A1 US 20120024603 A1 US20120024603 A1 US 20120024603A1 US 201013145500 A US201013145500 A US 201013145500A US 2012024603 A1 US2012024603 A1 US 2012024603A1
Authority
US
United States
Prior art keywords
pipe string
string element
fluid
supply line
fluid supply
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.)
Abandoned
Application number
US13/145,500
Other languages
English (en)
Inventor
Bernhard Prevedel
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.)
GeoForschungsZentrum Potsdam
Original Assignee
GeoForschungsZentrum Potsdam
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 GeoForschungsZentrum Potsdam filed Critical GeoForschungsZentrum Potsdam
Assigned to GEOFORSCHUNGSZENTRUM POTSDAM reassignment GEOFORSCHUNGSZENTRUM POTSDAM ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PREVEDEL, BERNHARD
Publication of US20120024603A1 publication Critical patent/US20120024603A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1035—Wear protectors; Centralising devices, e.g. stabilisers for plural rods, pipes or lines, e.g. for control lines

Definitions

  • the invention is in the field of technologies for geological boreholes.
  • the invention relates in particular to an apparatus for a pipe string of a geological drill hole, a pipe string of a geological drill hole, a method for operating a geological drilling machine and a method for producing a pipe string for a geological drill hole.
  • Geological bores are needed and constructed in connection with various applications. These include for example production of oil or natural gas. The production of geological bores to great depths is however also necessary in connection with geothermal energy. Geothermal energy involves using the energy stored in the earth, insofar as it can be obtained.
  • U.S. Pat. No. 3,937,280 describes what is known as a lift apparatus for producing oil.
  • a gas is introduced through an inner cavity of a hollow rod system, which gas passes outwards through openings in the pipe surrounding the inner cavity to enter the liquid to be conveyed, that is, in particular oil, and to support the transport thereof upwards.
  • a pneumatic system for producing oil using the gas lift method in U.S. Pat. No. 6,298,918 B1 a gas is transported downwards along an outer surface of a production pipe to enter the oil to be conveyed through a central cavity in the production pipe and to support the transport of the oil upwards.
  • a separate pipeline is used to introduce an inert gas into the geothermal fluid to be produced and to support the production thereof.
  • the separate pipeline for the gas to be supplied is in one embodiment cemented in an intermediate space between an inner production pipe and an outer pipe.
  • geothermal fluid requires that a suitable geological drill hole has been constructed beforehand.
  • geological drilling machines are used, on which a drilling tool is mounted at the lower end of the drill string or rod system.
  • a flushing liquid is guided to the drilling head through a cavity in the drill string, which liquid is transported back upwards on the outside of the drill string after exiting in the region of the drilling head.
  • drilling chips produced with the drilling head are transported away by means of the flushing liquid.
  • a substantial portion of the flushing liquid including drilling chips can be lost in geological formations by the flushing liquid penetrating strata and collecting there. In this manner the strata, which are for example malm limestones, become blocked. It is then provided for such blockages to be cleared again by introducing an acid. An economic loss also results due to the loss of the flushing liquid.
  • U.S. Pat. No. 6,607,042 B2 describes a method for constructing a geological drill hole in which in one embodiment a gas is injected into flushing liquid transported upwards to affect a circulation pressure of the flushing liquid in the region of the drilling head. It has been found that the circulation pressure at the bottom of the drill hole can be reduced by means of the gas injection.
  • the gas is supplied through an intermediate space between an outer pipe and an inner pipe, in which the flushing liquid is transported upwards.
  • the object of the invention is to specify improved technologies for constructing or forming a geological drill hole. More efficient handling of drilling flushing liquid should in particular be made possible, and damage to drilled geological formations should be minimised or completely avoided.
  • the object is achieved according to the invention by an apparatus for a pipe string of a geological drill hole according to independent Claim 1 , a pipe string of a geological drill hole according to independent Claim 14 , a method for operating a geological drilling gear according to independent Claim 15 and a method for producing a pipe string for a geological drill hole according to independent Claim 16 .
  • Advantageous configurations of the invention form the subject matter of dependent subclaims.
  • an apparatus for a pipe string of a geological drill hole is created, with a pipe string element and a fluid supply line which is arranged outside the pipe string element, extends along the pipe string element and is connected to a fluid injection device on the pipe string element, by means of which a fluid supplied through the fluid supply line can be introduced into an inner space of the pipe string element.
  • a pipe string of a geological drill hole is created with the above-mentioned apparatus, the apparatus being at least partially cemented in.
  • a further aspect of the invention provides a method for operating a geological drilling machine with the above-mentioned apparatus, the method comprising the following steps: supplying an operating liquid to an operative drill head mounted on a drill rod system, conducting the operating liquid back away from the drill head through an inner space of a pipe string element, supplying a fluid via a fluid supply line extending along and outside the pipe string element and adding the supplied fluid from the fluid supply line via a fluid injection device formed on the pipe string element to the operating liquid conducted away in the inner space of the pipe string element.
  • Another aspect of the invention relates to a method for installing a pipe string for a geological drill hole with the above-mentioned apparatus, in which a pipe string element is cemented, and during the cementing a pumping pressure is reduced by a fluid being supplied via a fluid supply line extending along and outside the pipe string element and added to a space to be cemented via a fluid injection device provided on the pipe string element.
  • the reduction of the pumping pressure lowers the risk of geological formations breaking up.
  • the provision of the fluid supply line outside the pipe string element makes possible an independent design and configuration of the inner space of the pipe string element on the one hand and of the fluid supply line on the other.
  • the pipe string element can be optimised for the intended purpose, in particular the return of the operating liquid and the injection of the fluid into the operating liquid transported back.
  • the fluid supply line can be correspondingly optimised to its purpose, namely the supply of the fluid to be injected into the operating liquid.
  • a plurality of fluid injection devices can be formed along the pipe string element. These can be distributed for example over the entire circumference of the pipe string element. If a plurality of fluid injection devices are formed on the pipe string element, they can be fed either via one fluid supply line or via separate fluid supply lines or separate fluid supply line sections.
  • the supplied fluid can be a gas or a liquid.
  • the fluid supply line is preferably formed in a gastight manner in one configuration.
  • a preferred development of the invention provides for the fluid supply line to be configured as a pipeline formed separately from the pipe string element, the walls of which pipeline are free from wall sections formed together with the walls of the pipe string element.
  • the fluid supply line can be arranged at least in sections on the outside of the pipe string element.
  • the fluid supply line can lie completely or partially on the outside of the pipe string element.
  • a combination of sections of the fluid supply line which lie on the outside of the pipe string element and fluid supply line sections kept at a distance therefrom can be provided.
  • retaining tabs can be used to fix the fluid supply line to the pipe string element.
  • the fluid supply line can be routed outwardly on a drill hole head in a fluid-tight manner.
  • One advantageous embodiment of the invention provides for the fluid supply line to be configured as a high pressure line.
  • a development of the invention preferably provides for the fluid supply line to be connected with at least one section through a connecting element which is arranged on the pipe string element and by means of which the pipe string element is connectable to a further pipe string element.
  • the connecting element is configured as a connecting bushing with which the pipe string element and the further pipe string element are connected to each other.
  • the fluid injection device in the connecting element.
  • the fluid injection device is connected to an opening in the walls of the pipe string element through which the fluid is injected into the inner space of the pipe string element.
  • One development of the invention can provide for an inspection opening to be provided on the connecting element. Access to for example the fluid supply line and/or the injection device is made possible via the inspection opening.
  • the inspection opening is preferably provided with a removable cover.
  • a preferred development of the invention provides for the injection device to be formed with a counterforce element which is configured to allow the injection of the supplied fluid into the inner space of the pipe string element only when a counterforce provided by the counterforce element is overcome.
  • the injection device is formed with a non-return valve, it being possible for valves operating according to the electronic or the mechanical non-return principle to be used.
  • the one or the plurality of injection devices also prevent fluid from escaping from the interior of the associated pipe string element. If a plurality of fluid injection devices are arranged at different depths over the length of the pipe string, it can be provided in the configuration for the counterforce to be overcome to increase downwards. In this manner the fluid is injected via the different fluid injection devices at increasing pressure one by one.
  • the counterforce provided by the counterforce element can be adjustable.
  • One advantageous embodiment of the invention provides for the pipe string element to be connected to a further pipe string element via an associated connecting element, the fluid supply line also extending along the further pipe string element and being connected to a further fluid injection device on the further pipe string element, by means of which the fluid supplied through the fluid supply line can be introduced into an inner space of the further pipe string element.
  • a development of the invention preferably provides for the injection device and the further injection device to be attached to separate supply line sections of the fluid supply line which are configured to feed the injection device and the further injection device individually.
  • the injection device and the further injection device can be arranged in series.
  • the further injection device can be formed with a further counterforce element which is configured to allow the injection of the supplied fluid into the inner space of the further pipe string element only when a counterforce provided by the further counterforce element is overcome.
  • the further fluid injection device is formed with a non-return valve, which is identical to or different from the non-return valve of the fluid injection device.
  • One development of the invention can provide for the counterforce provided by the further counterforce element to be different from the counterforce provided by the counterforce element.
  • the method for operating a geological drilling machine can be developed according to one of the above-mentioned configurations of the apparatus for the pipe string or according to a combination of a plurality of the said configurations.
  • FIG. 1 shows a schematic diagram of a pipe string design with a plurality of pipe strings of a geological drill hole
  • FIG. 2 shows a schematic diagram of an arrangement with three pipe string elements which are connected with connecting bushings
  • FIG. 3 shows a schematic diagram of an arrangement with three pipe strings of a geological drill hole, which are cemented in.
  • FIG. 1 shows a schematic diagram of a pipe string design of a geological drill hole.
  • the pipe strings 1 , . . . , 5 are terminated at the top with the aid of associated flanges 6 , . . . , 10 .
  • Three pipe strings 2 , 3 , 4 are provided on the outside with a respective fluid supply line 11 , 12 , 13 via which a fluid, in particular a gas, can be fed into the respective inner space of the pipe strings 2 , 3 , 4 , which is shown schematically in FIG. 1 by means of arrows.
  • the fluid supply lines 11 , 12 , 13 are routed outwards at the top through the associated flanges in a pressure-tight manner. Dashed lines in FIG. 1 indicate possible branches of the fluid supply lines 11 , 12 , 13 to intermediate valves (not shown) along the pipe string design.
  • the fluid supply lines 11 , 12 , 13 can be configured as high pressure lines, for example consisting of reinforced plastic, reinforced rubber or metal.
  • high pressure lines for example consisting of reinforced plastic, reinforced rubber or metal.
  • an endless pipeline from a drum or screwed, flanged or welded individual pipes can be used.
  • the fluid supply lines 11 , 12 , 13 are attached on the outside in the region of a drill hole head (not shown), preferably by means of a high pressure quick coupling, a stop nut or a flange design.
  • FIG. 2 shows a schematic diagram of an arrangement with pipe string elements 20 , 21 , 22 of a pipe string which are connected to each other with the aid of connecting bushings 23 , 24 in cross section.
  • two fluid supply lines 25 , 26 which are configured as high pressure lines are arranged along them, via which lines a fluid, for example air or an inert gas, can be supplied to non-return valves 27 , 30 which are arranged in the connecting bushings 23 , 24 and act as fluid injection devices.
  • the supplied fluid can be introduced via the non-return valves 27 , 30 in an inner space 31 , through which flushing or drilling flushing liquid flows upwards during operation. Arrows indicate a flow path of the fluid in FIG. 2 .
  • a respective inspection opening 32 is formed on the connecting bushings 23 , 24 , which opening is closed with a cover.
  • FIG. 3 shows a schematic diagram of an arrangement with three pipe strings 40 , 41 , 42 of a geological drill hole, which are cemented in.
  • FIG. 3 shows a schematic diagram of a section of a pipe string design with three pipe strings 40 , 41 , 42 of a geological drill hole at the time of sinking the drill hole from the pipe string 42 with a drill head which corresponds to the inner diameter of the pipe string 42 .
  • a plurality of fluid supply lines 43 , 44 , 45 act to supply a fluid, for example air or an inert gas. The supply of the fluid makes it possible to reduce the pumping pressure in the process of cementing the pipe strings when introducing the cement.
  • the supplied fluid is introduced via fluid injection devices 46 , 47 , 48 .
  • the plurality of fluid supply lines 43 , 44 , 45 are partially deactivated again after successful drilling and cementing of already covered, higher drill hole sections.
  • the fluid supply lines 44 , 45 are still active for continued drilling and cementation of a pipe string still to be introduced inside the pipe string 42 .
  • a plurality of fluid injection devices distributed over a pipe string and operated via one or a plurality of fluid supply lines, make it possible with optimum adding of light fluids or gases to maintain the flushing circuit in a drill hole in the short term, even with the flushing head unscrewed from the drill rod system and pumps stopped.
  • This time can generally be sufficient to reset a drill string without in the meantime having to fill a rod system interior with flush medium manually in order to maintain the often desired continuous flushing circuit in a drill hole during such stoppage times.
  • Pressure peaks on geological formations which can arise especially in deep drilling sections when restarting the flushing pumps after such a resetting process, can thereby largely be avoided.

Landscapes

  • 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)
US13/145,500 2009-01-20 2010-01-18 Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole Abandoned US20120024603A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009005514A DE102009005514B4 (de) 2009-01-20 2009-01-20 Vorrichtung für eine Rohrtour eines geologischen Bohrlochs, Rohrtour, Verfahren zum Betreiben einer geologischen Bohranlage sowie Verfahren zum Herstellen einer Rohrtour für ein geologisches Bohrloch
PCT/DE2010/000038 WO2010083803A2 (fr) 2009-01-20 2010-01-18 Dispositif pour un train de tiges d'un puits de forage géologique, train de tiges, procédé pour faire fonctionner une installation de forage géologique et procédé pour fabriquer un train de tiges pour un puits de forage géologique

Publications (1)

Publication Number Publication Date
US20120024603A1 true US20120024603A1 (en) 2012-02-02

Family

ID=42262992

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/145,500 Abandoned US20120024603A1 (en) 2009-01-20 2010-01-18 Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole

Country Status (4)

Country Link
US (1) US20120024603A1 (fr)
EP (1) EP2389496A2 (fr)
DE (1) DE102009005514B4 (fr)
WO (1) WO2010083803A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015020652A3 (fr) * 2013-08-08 2015-06-04 Landmark Graphics Corporation Ensemble manchon de tubage pour la production d'un chapeau de gaz annulaire
WO2019118135A1 (fr) * 2017-12-11 2019-06-20 Mastercard International Incorporated Procédé et système de dépôt automatisé d'informations de taxation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060016599A1 (en) * 2004-07-22 2006-01-26 Badalamenti Anthony M Cementing methods and systems for initiating fluid flow with reduced pumping pressure
US20070000668A1 (en) * 2003-05-15 2007-01-04 Matheus Christensen Internal running elevator

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1710937A (en) * 1928-05-12 1929-04-30 Mccarty William Pressure lift for oil wells
US3050121A (en) * 1957-04-22 1962-08-21 Us Industries Inc Well apparatus and method
US3497020A (en) * 1968-05-20 1970-02-24 Archer W Kammerer Jr System for reducing hydrostatic pressure on formations
US3937280A (en) 1975-02-03 1976-02-10 Macco Oil Tool Company, Inc. Artificial lift well apparatus
US4787450A (en) 1987-05-07 1988-11-29 Union Oil Company Of California Gas lift process for restoring flow in depleted geothermal reservoirs
US5339905B1 (en) * 1992-11-25 1995-05-16 Subzone Lift System Gas injection dewatering process and apparatus
US7270185B2 (en) * 1998-07-15 2007-09-18 Baker Hughes Incorporated Drilling system and method for controlling equivalent circulating density during drilling of wellbores
BR9900747A (pt) 1999-02-18 2000-10-17 Petroleo Brasileiro Sa Sistema de elevaçào de petróleo por bombeio pneumático
US6966392B2 (en) * 2001-02-15 2005-11-22 Deboer Luc Method for varying the density of drilling fluids in deep water oil and gas drilling applications
CA2344627C (fr) 2001-04-18 2007-08-07 Northland Energy Corporation Methode permettant la commande dynamique de la pression de circulation de fond pendant le sondage d'un puits de forage
DE10208768A1 (de) * 2002-02-28 2003-09-04 Bohrlochmessung Storkow Gmbh Verfahren zur Überprüfung der Dichtheit von hydraulischen Sperren in ausgebauten Bohrungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070000668A1 (en) * 2003-05-15 2007-01-04 Matheus Christensen Internal running elevator
US20060016599A1 (en) * 2004-07-22 2006-01-26 Badalamenti Anthony M Cementing methods and systems for initiating fluid flow with reduced pumping pressure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015020652A3 (fr) * 2013-08-08 2015-06-04 Landmark Graphics Corporation Ensemble manchon de tubage pour la production d'un chapeau de gaz annulaire
GB2532889A (en) * 2013-08-08 2016-06-01 Landmark Graphics Corp Casing joint assembly for producing an annulus gas cap
US9470067B2 (en) 2013-08-08 2016-10-18 Landmark Graphics Corporation Casing joint assembly for producing an annulus gas cap
GB2532889B (en) * 2013-08-08 2018-01-31 Landmark Graphics Corp Casing joint assembly for producing an annulus gas cap
WO2019118135A1 (fr) * 2017-12-11 2019-06-20 Mastercard International Incorporated Procédé et système de dépôt automatisé d'informations de taxation

Also Published As

Publication number Publication date
WO2010083803A3 (fr) 2010-11-18
EP2389496A2 (fr) 2011-11-30
DE102009005514B4 (de) 2011-03-10
WO2010083803A2 (fr) 2010-07-29
DE102009005514A1 (de) 2010-07-22

Similar Documents

Publication Publication Date Title
AU2009210651B2 (en) Apparatus, assembly and process for injecting fluid into a subterranean well
RU2650983C2 (ru) Горизонтально-вертикальная насосная система для извлечения скважинной текучей среды
US10344549B2 (en) Systems for removing blockages in subsea flowlines and equipment
US7770637B2 (en) Bypass gas lift system and method for producing a well
US8413726B2 (en) Apparatus, assembly and process for injecting fluid into a subterranean well
MY168844A (en) Method of drilling a subterranean borehole
AR045266A1 (es) Sistema y metodo de perforacion
US20070119621A1 (en) Method and device for controlling drilling fluid pressure
EP2236739A2 (fr) Ensemble pour le déchargement d'un puits
RU2286444C2 (ru) Способ кондиционирования скважинных текучих сред и насосная штанга, предназначенная для реализации способа
WO2008007973A1 (fr) Dispositif de tronçon de canalisation permettant de transporter un fluide depuis une tête de puits jusqu'à une cuve
US8191624B2 (en) Bypass gas lift system for producing a well
AU2015254995B2 (en) Production riser with a gas lift facility
US20120024603A1 (en) Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole
US11306568B2 (en) Hybrid artificial lift system and method
RU2484240C1 (ru) Способ установки хвостовика обсадной колонны в скважине
US10995577B2 (en) Method and system for controlling gas flow
CN212428615U (zh) 管柱及采油树
US20120073820A1 (en) Chemical Injector for Wells
RU178242U1 (ru) Устройство для подачи ингибитора
CN103221633B (zh) 使用用于流体抽取的柔性管道进行机械泵送的同时生产和维护的人造系统
RU2786980C1 (ru) Устройство для скважинной гидродобычи полезных ископаемых
JP6087206B2 (ja) 地下水位制御システム
RU2685606C1 (ru) Способ бурения скважины при катастрофическом поглощении и устройство для его осуществления
US20190063189A1 (en) Apparatus, system and method for debris removal

Legal Events

Date Code Title Description
AS Assignment

Owner name: GEOFORSCHUNGSZENTRUM POTSDAM, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PREVEDEL, BERNHARD;REEL/FRAME:027008/0073

Effective date: 20110824

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION