EP2607618A1 - Agencement de perforation - Google Patents

Agencement de perforation Download PDF

Info

Publication number
EP2607618A1
EP2607618A1 EP11194937.6A EP11194937A EP2607618A1 EP 2607618 A1 EP2607618 A1 EP 2607618A1 EP 11194937 A EP11194937 A EP 11194937A EP 2607618 A1 EP2607618 A1 EP 2607618A1
Authority
EP
European Patent Office
Prior art keywords
component
contact element
lining
hole arrangement
drill
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.)
Withdrawn
Application number
EP11194937.6A
Other languages
German (de)
English (en)
Inventor
Tom Blades
Detlef Haje
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP11194937.6A priority Critical patent/EP2607618A1/fr
Publication of EP2607618A1 publication Critical patent/EP2607618A1/fr
Withdrawn legal-status Critical Current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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/028—Electrical or electro-magnetic connections
    • E21B17/0285—Electrical or electro-magnetic connections characterised by electrically insulating elements
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0085—Adaptations of electric power generating means for use in boreholes
    • 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
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/125—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using earth as an electrical conductor

Definitions

  • the invention relates to a conveying hole arrangement for drilling or operating a production hole or a borehole with the aim of conveying in particular crude oil and / or natural gas.
  • the invention relates in particular to the supply of electronic components within the production or borehole.
  • a drilling turbine attached to a drill string drives a drill bit or bit that is driven further and further into the ground.
  • the resulting loose rocks are transported via the borehole to the surface.
  • the drill pipe is usually metallic.
  • a liquid can be passed through the wellbore through an inner tube to the drill and also be transported upwards within the well in an annulus between the wellbore and inner tube together with the crushed rock.
  • the borehole can already be lined in various stages during the development phase by means of a casing or a housing.
  • Metallic tubes are used, which are preferably additionally cemented from the outside.
  • sensors may be installed in the vicinity of the drill head, the current values such. B. supply pressure.
  • valves are used, which may also have sensors to detect the opening state of the respective valve.
  • sensors are needed to measure changes in pressure, temperature, or electrical conductivity to optimize production, for example.
  • sensors are installed in the conveyor hole.
  • the production well corresponds to the wellbore where the drill string is removed and in which, in particular, a production tubing may be inserted within the casing.
  • pumps with associated pump rods or a gas-lift system may additionally be introduced.
  • the condition of moving parts is subject to wear, so it may be important to determine if the behavior of a pump or drive motor is changing, for example due to bearing wear. This can be evaluated in such a way that measures can be taken early on for a planned exchange. This is made possible by further sensors in the production hole or on the pump.
  • the energy for one of the telemetry stations is taken from the environment of the respective telemetry station.
  • the energy source is the potential energy of the fluid being pumped, kinetic energy of an injected fluid or drill pipe, eddy currents in conjunction with a piezoelectric material, the voltage of a sacrificial anode protecting the drill pipe from conductive drilling fluid, temperature differences between the inside and outside of the drill pipe, or induction by a conductive drilling fluid using permanent magnets in question.
  • replaceable or rechargeable batteries are mentioned as an energy supplier.
  • US 2005/0024231 A1 further discloses various variants of communication, such as acoustic transmission, radio frequency transmission, electromagnetic or optical transmission.
  • adjacent telemetry stations are in communication with each other, wherein preferably also stations can be skipped, so that the longest possible transmission links can be achieved with a small number of involved telemetry stations.
  • US 2005/0024231 A1 furthermore pressure, temperature and vibration sensors, as well as sensors for monitoring the current and voltage values of the telemetry stations.
  • the invention is directed to a conveying hole arrangement for drilling or operating a production hole, wherein the production hole for conveying a fluid, in particular petroleum and / or natural gas, for example in the form of a multi-phase mixture, from an underground reservoir - a reservoir - is provided.
  • the conveying hole arrangement comprises at least one first underground electronic component - for example a sensor and / or a communication device and a cylindrical device, in particular a drill pipe - for a drilling operation - or a pump linkage or a conveying pipe - for a conveying operation - within the production hole.
  • the delivery hole arrangement comprises a first contact element, which is electrically connected to the device, in particular galvanically connected, a - preferably arranged on the surface - power supply to which the first contact element is electrically connected, and at least one second contact element, with the device is electrically connected and which is electrically connected to a surrounding soil of the production hole - directly or via other conductive components such as a casing.
  • the second contact element and the first component are electrically connected to one another in such a way that, during operation, a supply voltage is applied to the first component on the basis of a voltage provided by the voltage supply.
  • the second contact element is the soil directly touched or even partially penetrates into the ground.
  • the second contact element is designed as a sacrificial anode or analogous to a sacrificial anode - a piece of base metal, which is conductively connected to another - possibly to be protected - metallic material - so that only by the sacrificial anode results in a potential difference through which the first component can be operated.
  • the voltage supply can be used only supportive, for example, that the resulting currents are directed specifically over the first component.
  • connection of the second contact element and the first component takes place in pairs.
  • the invention makes it possible that results in a voltage potential between the second contact element and the power supply, thus forms a circuit and a portion of the voltage across the first component drops, so that the first component is powered by the voltage drop.
  • the first component may preferably comprise a sensor and / or a communication device.
  • the sensor may be, for example, a sensor for sensing a temperature, a fluid velocity, a fluid composition, a pressure, or other downhole parameters.
  • the sensor may also be an inclinometer.
  • the information sensed by the sensor may be transmitted to the surface via the communication device or downhole to a next communication device. In the latter case, the information can be relayed stepwise over short distances from communication device to communication device until the data finally reaches a receiver on the surface to allow evaluation there.
  • An implementation with multiple communication devices has the advantage that only short distances must be bridged, so that the power consumption of the communication device is low.
  • sensors and associated communication devices may be provided anyway at certain intervals, so that it is advantageous not to design these communication devices as mere transmitters, but also as a receiver and forwarding station.
  • a transmission chain can be formed, via which all data of all sensors can be transmitted from the underground to the surface.
  • This communication direction is preferably designed as a transmitting and / or receiving device for the transmission of data, wherein the data can be transmitted, for example in the form of acoustic waves, optical waves, radio frequency waves or electromagnetic waves.
  • a transmission medium can be provided for the transmitting and / or receiving device for transmission to the surface or the nearest transmitting and / or receiving device, a fiber optic cable, an electrical cable, the drill string as an electrical conductor, the conveyor tube or a stabilizer tube as an electrical conductor.
  • the transmission can also take place via air.
  • the removed fluid can be used as a transmission medium.
  • the delivery hole arrangement comprises at least sections of electrically conductive lining - a casing, a casing, a so-called casing - for stabilizing the production hole with respect to the surrounding soil.
  • This lining surrounds the drill pipe coaxially during drilling operation.
  • the pump linkage is coaxially surrounded by the lining.
  • the liner directs delivered fluid to the surface.
  • the lining may be completely metallic or may have sections of electrically non-conductive sections, so that in the latter case the current flow can be directed to the first component in a targeted manner.
  • the second contact element may be in contact with the lining and, furthermore, the lining may be in contact with the earth, at least in individual sections and in particular via the second contact element. Largely, however, the lining may still be surrounded by cement in order to stabilize the borehole or production well. In this case, the second contact element penetrates the cement to make the connection between soil and lining.
  • a conductive connection to the ground can be produced without the contact element penetrating the cement. This may for example be given if an electrically conductive connection of the lining is provided elsewhere.
  • the electrically conductive liner may include an insulating sheath and / or a cement sheath between the liner and the surrounding soil, with at least one portion providing electrical connection between the liner and the soil.
  • the first component may be integrated into the electrically conductive liner itself or attached to the electrically conductive liner - an outer surface or an inner surface.
  • the first component may be placed in a tubular interior of the liner, i. if the electrically conductive lining is designed as a cylindrical tube, the first component can be arranged inside this cylindrical tube.
  • the first component in or on a connector - a so-called pup joint - the cylindrical device, in particular the drill string, are arranged.
  • a connector - e.g. if there is a defect - remove it again and replace it with another connector.
  • Such a connecting piece is preferably cylindrical and has at the head ends in each case a thread, so that it can be connected to the rest of the drill pipe.
  • the second contact element is designed as a drill of a drill head and the electrical connection to the ground in a drilling operation, in which the drill head is driven to rotate and / or hammering.
  • FIG. 1 1 shows a borehole arrangement 1 as a conveying hole arrangement according to the invention, in which a drill 6 penetrates into the surrounding earth 2.
  • the drill 6 is coupled to a cylindrical drill string 5 as a cylindrical device according to the invention.
  • the drill pipe comprises cylindrical metal pipes which are connected to one another via connecting pieces 40, so-called pup joints.
  • a lining 3 - as a casing, casing or casing - is provided to stabilize the borehole against the ground.
  • the lining is shown in two stages. In a near-surface portion, a first liner (labeled with reference numeral 3) having a first cylinder radius is shown; in Furthermore, a second lining 3 ', with a second cylinder radius which is smaller than the first cylinder radius, is shown in a section remote from the surface.
  • a cement sheath 4 which acts in addition to the stabilization and electrically insulating against the soil.
  • the lining 3, 3 ' is preferably a metallic tube and is designed to be electrically conductive.
  • the lining 3, 3 ' is here preferably continuously conductive.
  • a transition between the first liner 3 and the second liner 3 'in addition to a cement stabilizer 24 also have an electrically conductive contact 23, for example by a short cylinder in the form of a circular ring, so that the contact 23 an electrical connection between the first liner. 3 and the second liner 3 '.
  • a power supply 30 which is conductively connected to a first electrical conductor 33 - a first voltage pole of the power supply 30 - to the drill pipe 5 - preferably outside the borehole and in particular above the ground at the surface.
  • a second voltage pole of the voltage supply 30 may be connected via a second electrical conductor 34 to the ground 2 - in particular as ground pole.
  • the second voltage pole can also be electrically coupled to the lining 3 via a third electrical conductor 35.
  • the drill string 5 comprises passive linkage parts 5 'and the already mentioned connecting pieces 40, which are many times shorter than the passive linkage parts 5' and in a first embodiment within a largely metallic body a sensor 10 and / or a communication device 11 as first underground according to the invention having electrical component.
  • the connecting pieces 40 are preferably via a thread with the passive linkage parts 5 ', wherein a respective connecting piece 40 between two passive linkage parts 5' is arranged.
  • the sensor 10 disposed in the connector 40 is designed to receive and detect certain state data. Physical or chemical properties of the multiphase mixture or the environment of the sensor can be recorded - temperature, pressure, speed - and / or the material nature of the multiphase mixture.
  • state data determined continuously or at certain intervals can be transmitted from the sensor 10 to the named communication device 11, so that the communication device 11 - which comprises at least one transmitting device - transmits the state data by means of communication data of a communication protocol in the direction of the surface.
  • the transmission can take place directly up to a receiving unit arranged on the surface, which, however, has an effect in an increased energy requirement of the communication device 11.
  • the communication devices also include receiving devices, so that the communication data as messages only between adjacent communication devices 11 are transmitted, wherein a communication device 11 a further received by their receiving device from a downhole communication device 11 message continues to the next higher communication device 11 by the message is passed to the transmitting device of the communication device 11 and is forwarded by this.
  • a message with sensor data can be transmitted to the surface in a simple manner and with a low energy requirement, since in each case only the distance between two communication devices 11 has to be bridged.
  • the message or message is forwarded by the respective communication device 10.
  • the message can also be recoded and in particular be combined with other sensor data and included in a new message.
  • the delivery hole arrangement is preferably configured such that a first electronic component with a sensor 10 and a communication device 11, a second electronic component with a sensor 10 and a communication device 11 and a third electronic component with a sensor 10 and a communication device 11 with their associated form a transmission chain, so that any data - but especially measurement data from the underground, but also pure protocol-compliant communication data - are transmitted from the transmitting device of the first component to the receiving device of the second component and after receipt at the second component, the data is transmitted by the transmitting device of the second component to the receiving device of the third component.
  • the sensors 10 and the communication devices 11 require only little energy and thus the energy supply can be reduced.
  • a conductive connection is to be established by the voltage supply 30 so that voltage at the sensor 10 and / or at the communication device 11 drops.
  • the connecting piece 40 in which the sensor 10 and / or the communication device 11 can be arranged - as in FIG. 1 indicated at the top connector 40 - a first contact element 21 is provided that produces an electrical connection to the liner 3.
  • the sensor 10 and / or the respective communication device 11 may be integrated in the connecting piece 40.
  • the respective sensor 10 and / or the respective communication device 11 may also be arranged in or on the lining 3, as in the case of the second-highest connecting piece 40 in FIG FIG. 1 is shown.
  • the connecting piece 40 is merely a passive metallic body, but furthermore a first contact element 21 is provided which produces an electrical connection from the connecting piece 40 to the lining 3 and thus also to the sensor 10 and / or the communication device 11.
  • an electrically conductive connection is thus provided by a contact of the sensor 10 or the communication device 11 via the drill pipe 5 to the power supply 30.
  • a second contact of the sensor 10 or the communication device 11 is conductively connected to the lining 3.
  • a second contact element 20 which in turn allows an electrically conductive connection of the liner 3 from an outer surface of the liner 3 to the ground 2, wherein the second contact element 20 is dimensioned such that the surrounding the lining 3 cement layer 4 is bridged and a safer Contact with the soil 2 is made.
  • the second contact element 20 is in FIG.1 in the sectional drawing rectangular or wedge-shaped and can be a cuboid or conical body. Any other shapes are conceivable, provided reliable contact with the soil 2 can be made and installed as simply as possible.
  • a voltage from the power supply 30, via the drill string 5, via the sensor 10 and / or the communication device 11, via the first contact element 21, the liner 3, the second contact element 20 and the soil 2 is applied in such a way that a voltage can be tapped at the sensor 10 and / or at the communication device 11, which voltage is sufficient for supplying the sensor 10 and / or the communication device 11.
  • the voltage applied to the sensor 10 is the supply voltage 31 for the sensor 10
  • the voltage applied to the communication device 11 is the supply voltage 32 (in FIG FIG. 2 indicated schematically).
  • the remaining components can also have a resistive effect. It is possible, for example, to use resistive components, in particular in the lining 3 or in the drill pipe 5, so that all components in the borehole arrangement 1 installed sensors 10 and / or communication devices 11 is supplied exactly the respectively required operating voltage.
  • the senor 10 and / or the communication device 11 an energy storage - for example, a capacitor or a rechargeable battery - have, so that even at low dropping voltage or low voltage provided by the power supply 30 by means of the energy storage sufficient energy can be cached to at least at intervals - preferably at equal intervals - the sensor 10 and / or the communication device 11 to provide energy for a period of time.
  • an energy storage - for example, a capacitor or a rechargeable battery - have, so that even at low dropping voltage or low voltage provided by the power supply 30 by means of the energy storage sufficient energy can be cached to at least at intervals - preferably at equal intervals - the sensor 10 and / or the communication device 11 to provide energy for a period of time.
  • the second contact element 20 may be formed as a sacrificial anode or analogous to a sacrificial anode of a cathode protection system.
  • analogous to a sacrificial anode is meant that, although originally no sacrificial anode is provided, but the charge carrier transport proceeds exactly as it runs in a sacrificial anode and in a cathode protection system.
  • cathode protection system also called cathodic corrosion protection system - is a conductive system to understand in which the sacrificial anode is attacked and decomposed to protect against corrosion, so that only dissolved out of the sacrificial anode ions.
  • cathode protection system - also called cathodic corrosion protection system - is a conductive system to understand in which the sacrificial anode is attacked and decomposed to protect against corrosion, so that only dissolved out of the sacrificial anode ions.
  • there is a charge transport in the electrically conductively interconnected components so that there is a current flow via the conductive connection from the sacrificial anode via the lining 3 and the first contact element 21 to the sensor 10 and / or the communication device 11, wherein by means of Current flow, the supply voltages 31, 32 result.
  • the power supply 30 and the sacrificial anode serve individually or together to supply the plurality of sensors 10 and / or communication devices 11 with voltage.
  • the voltage supply 30 can be dimensioned with a low output voltage due to the existing sacrificial anodes.
  • the voltage supply 30 can be used only to support the current flow occurring through the sacrificial anodes, for example, only to initiate the current flow of the sacrificial anode or to "direct" the flow of current to the sensor 10 and / or the communication device 11.
  • FIG. 1 is found next to the variants already explained, a third variant of the inventive concept, in which the drill 6 - ie the drill head - is integrated into the power circuit.
  • the sensor 10 and / or the communication device 11 are included in the connector 40.
  • the lower connecting piece 40 in the drill pipe 5 is followed by another section of the drill string as the first contact element 21.
  • this first contact element 21 is not connected to the lining 3, but causes an electrical contact to the drill bit 6.
  • the drill bit 6 is in turn connected to the soil 2 in connection, so that the intended for the degradation of the rock and preferably rotating surface of the drill 6 is an embodiment of the second contact element 20.
  • a voltage from the ground 2, over the surface of the drill 6 as a second contact element 20, the drill 6, the first contact element 21, the sensor 10 and / or the communication device 11 as an underground electrical component, the drill string 5 including connectors 40 contained therein , the electrical conductor 33 and the power supply 30 are generated, so that a voltage drop on the sensor 10 and / or on the communication device 11 is available for their operation for the supply.
  • FIG. 2 is again schematically in an exploded sectional drawing a so-called Pup-Joint - so that Connector 40 - highlighted.
  • a passive linkage part 5 ' As part of the drill string 5, one end of a passive linkage part 5 ', a connecting piece 40 and another passive linkage part 5' are shown. To connect matched outer and inner threads are provided.
  • the linkage parts 5 'and the connector 40 are formed as a tube with a central flow opening, so that a liquid can be introduced into the borehole.
  • the sensor 10 and the communication device 11 are schematically indicated as rectangles in the interior of the connecting piece 40. Furthermore, a contact with the surface of the connecting piece 40 is indicated, so that with the surface of the connecting piece 40, the first contact element 21 (in FIG. 2 not shown) can be brought into electrical conduction.
  • the voltage applied to the sensor 10 and to the communication device 11 during operation is indicated by arrows as supply voltages 31, 32.
  • the connector 40 preferably has conductive portions as well as a non-conductive body for receiving the sensor 10 and / or the communication device 10 to prevent short circuits on the sensor 10 and / or on the communication device 10.
  • FIG. 1 and FIG. 2 were explained on the basis of a drill pipe for a drilling operation, but an analogous design is also conceivable for a production operation, wherein only the drill pipe is replaced by a pump linkage.
  • FIG. 1 and FIG. 2 are largely geared to a drilling operation concerns FIG. 3 now preferably the production or production operation, again a use in drilling operation comes into consideration.
  • FIG. 3 now preferably the production or production operation, again a use in drilling operation comes into consideration.
  • the concepts of the previous embodiments are also on FIG. 3 apply, provided that no contradiction arises. That is why in the Following also already in the context of FIG. 1 introduced components.
  • a lining 3 is provided as a shuttering with respect to the soil 2, which is now a so-called casing and / or a conveying pipe and / or a riser pipe, wherein the conveying pipe or the riser pipe a promoted oil and / or gas and / or multiphase mixture from the reservoir to the surface passes.
  • the lining 3 is again preferably cylindrical in shape as a tube and stabilized from the radial outside by a cement sheath 4.
  • the lining is constructed as electrically conductive tubes.
  • a first lining - labeled with reference numeral 3 - is shown with a first cylinder radius.
  • a second lining 3 ' is furthermore shown, which has a second cylinder radius which is smaller than the first cylinder radius.
  • the lining 3, 3 ' is surrounded by a cement sheath 4.
  • the liner 3, 3 ' is preferably continuous throughout its length.
  • the first liner 3 and the second liner 3 ' are electrically connected via an electrically conductive contact 23.
  • cement stabilization 24 is provided in this area.
  • no power supply is provided in the conveying hole arrangement.
  • a Power supply 30 is provided which is electrically coupled to an electrical conductor 35 with the liner 3. Furthermore, a second voltage pole of the voltage supply 30 can be connected via a second electrical conductor 32 to the ground 2 - in particular as ground pole.
  • a sensor 10 and / or a communication device 11 as the first underground electrical component.
  • the sensor 10 is again intended to record and record state data, such as temperature, pressure, speed - and / or the material nature of the pumped fluid.
  • state data determined continuously or at certain intervals can be transmitted from the sensor 10 to the named communication device 11, so that the communication device 11 - which comprises at least one transmitting device - transmits the state data by means of communication data of a communication protocol in the direction of the surface.
  • the communication from the sensor 10 to the surface takes place again from the communication device 11 to the communication device 11 in a chain. This makes it possible to use sensors 10 and communication devices 11 with low energy consumption.
  • a second contact element 20 is formed as a sacrificial anode or analogous to a sacrificial anode of a cathode protection system. It can thus result in a current flow via a conductive connection from the sacrificial anode via the sensor 10 and / or the communication device 11 and further via the first contact element 21 to the lining 3.
  • the supply voltages 31, 32 are applied to the sensor 10 and / or to the communication device 11.
  • the conductive connection can also be established from the sacrificial anode via the lining and via the first contact element 21 to the sensor 10 and / or to the communication device 11.
  • the sacrificial anode serves - possibly supported by the power supply 30 - to supply a respective sensor 10 and / or a respective communication device 11 with voltage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
EP11194937.6A 2011-12-21 2011-12-21 Agencement de perforation Withdrawn EP2607618A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11194937.6A EP2607618A1 (fr) 2011-12-21 2011-12-21 Agencement de perforation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11194937.6A EP2607618A1 (fr) 2011-12-21 2011-12-21 Agencement de perforation

Publications (1)

Publication Number Publication Date
EP2607618A1 true EP2607618A1 (fr) 2013-06-26

Family

ID=45622993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11194937.6A Withdrawn EP2607618A1 (fr) 2011-12-21 2011-12-21 Agencement de perforation

Country Status (1)

Country Link
EP (1) EP2607618A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278335A (en) * 1962-06-20 1966-10-11 Phillips Petroleum Co Process for producing electricity from underground fuel cell
US5012868A (en) * 1989-03-14 1991-05-07 Uentech Corporation Corrosion inhibition method and apparatus for downhole electrical heating in mineral fluid wells
US6253847B1 (en) * 1998-08-13 2001-07-03 Schlumberger Technology Corporation Downhole power generation
US20050024231A1 (en) 2003-06-13 2005-02-03 Baker Hughes Incorporated Apparatus and methods for self-powered communication and sensor network
US20100127566A1 (en) * 2007-04-13 2010-05-27 Cameron International Corporation Power Supply System

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278335A (en) * 1962-06-20 1966-10-11 Phillips Petroleum Co Process for producing electricity from underground fuel cell
US5012868A (en) * 1989-03-14 1991-05-07 Uentech Corporation Corrosion inhibition method and apparatus for downhole electrical heating in mineral fluid wells
US6253847B1 (en) * 1998-08-13 2001-07-03 Schlumberger Technology Corporation Downhole power generation
US20050024231A1 (en) 2003-06-13 2005-02-03 Baker Hughes Incorporated Apparatus and methods for self-powered communication and sensor network
US20100127566A1 (en) * 2007-04-13 2010-05-27 Cameron International Corporation Power Supply System

Similar Documents

Publication Publication Date Title
DE3852151T2 (de) Elektrische Leitungseinrichtung für Rohrsysteme.
EP2440737B1 (fr) Dispositif permettant de relier des conduites électriques et destiné à des installations de forage et de production
EP2558682B1 (fr) Système de communication permettant la transmission d'informations par l'intermédiaire de tiges de forage
DE4291022B4 (de) Kurzstreckenübertragungsverbindung für ein Tiefen-MWD-System
EP2607617A1 (fr) Agencement de perforation
DE102007020662B4 (de) Induktives Kopplungssystem
DE69614536T2 (de) Unterträgige signalübertragungsvorrichtung
DE60018903T2 (de) Erdbohrung mit mehreren seitenbohrungen und elektrischen übertragungssystem
DE69124660T2 (de) Robustes, elektrisches Heizsystem für Mineralölbohrungen
EP1802844B1 (fr) Procede de pose de conduites sans tranchee
EP2957710B1 (fr) Tête de forage et dispositif de production d'un forage dans la terre
DE112014003216T5 (de) Untertagesteckverbinder
DE112009002144T5 (de) Elektrische Übertragung zwischen rotierenden und nicht rotierenden Elementen
EP2639529B1 (fr) Tuyauterie de transport destinée à être utilisée par une sonde d'énergie géothermique afin d'obtenir une énergie géothermique et procédé de montage d'une telle tuyauterie de transport
DE102011122353A1 (de) Verdrahtete Schlammmotorkomponenten, Verfahren zu ihrer Herstellung und Untertagemotoren mit denselben
DE3113749A1 (de) Vorrichtung zur fernuebertragung von informationen aus einem bohrloch zur erdoberflaeche waehrend des betriebs eines bohrgeraetes
DE102010019514A1 (de) Erdbohrvorrichtung
EP2607618A1 (fr) Agencement de perforation
US9932776B2 (en) Pinned electromagnetic telemetry gap sub assembly
DE112015006745T5 (de) Elektrische Isolierung zum Reduzieren von Magnetometerstörbeeinflussung
US10934784B2 (en) Seal and sacrificial components for a drill string
EP2205813B1 (fr) Procédé et dispositif de contrôle de l'enveloppe d'une conduite tubulaire pendant sa pose dans un trou de forage rempli de liquide
EP2150674B1 (fr) Procédé et dispositif de contrôle du gainage d'une tubulure lors de l'insertion dans un trou de forage rempli de liquide
DE102021109782B4 (de) Außengewindelose Trennwand für Perforierpistole
WO2016131533A1 (fr) Portion de tige de forage double, tronçon de tige de forage double et procédé pour former une liaison électriquement conductrice dans une portion de tige de forage double

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140103