EP1473256A1 - Verfahren und Vorrichtung zur Datenübertragung zwischen Übertage und einem untertägigen Salzhohlraum - Google Patents

Verfahren und Vorrichtung zur Datenübertragung zwischen Übertage und einem untertägigen Salzhohlraum Download PDF

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Publication number
EP1473256A1
EP1473256A1 EP04291047A EP04291047A EP1473256A1 EP 1473256 A1 EP1473256 A1 EP 1473256A1 EP 04291047 A EP04291047 A EP 04291047A EP 04291047 A EP04291047 A EP 04291047A EP 1473256 A1 EP1473256 A1 EP 1473256A1
Authority
EP
European Patent Office
Prior art keywords
cavity
receiver
transmitter
measuring device
cable
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
EP04291047A
Other languages
English (en)
French (fr)
Other versions
EP1473256B1 (de
Inventor
Jean-Michel Barbot
Thierry Pichery
Christian Sirieix
Bruno Lebrière
Denis Hafon
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.)
Geoservices SA
Engie SA
Original Assignee
Gaz de France SA
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 Gaz de France SA filed Critical Gaz de France SA
Publication of EP1473256A1 publication Critical patent/EP1473256A1/de
Application granted granted Critical
Publication of EP1473256B1 publication Critical patent/EP1473256B1/de
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
    • 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
    • E21B47/14—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 acoustic waves
    • E21B47/16—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 acoustic waves through the drill string or casing, e.g. by torsional acoustic waves
    • 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
    • E21B47/13—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 by electromagnetic energy, e.g. radio frequency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32008—Plural distinct articulation axes

Definitions

  • the present invention relates to the general field of transmission of information from a salt cavity drilled in the ground to the surface. More specifically, the invention relates to the transmission of information collected at any height from a saline cavity while allowing normal operation of the cavity (filling, racking, etc.).
  • Salt cavities are generally used for storage underground hydrocarbons, such as natural gas or petroleum. Such hydrocarbon storage may be necessary to maintain potential energy in the event of a crisis (so-called strategic storage) or to allow absorb seasonal consumption peaks (storage said seasonal).
  • a saline cavity is obtained by drilling a well through layers of geological formation (rock rock salt) and by leaching with fresh water circulation to create the shape and volume of the cavity.
  • a production tube is lowered to the bottom of the cavity to fill the cavity in hydrocarbons.
  • the internal pressure must remain, on the one hand slightly higher than the formation pressure to avoid any risk of subsidence and loss of useful volume by salt creep, and other part, lower than the fracturing pressure of the rock in order to guarantee sealing of the cavity.
  • the volume of gas contained in the cavity strongly depends on the storage pressure, a storage gain of a few millibars on this pressure which can result in several hundreds of thousands of additional cubic meters of stored gas. Under these conditions, continuous monitoring of the pressure during the filling the cavity allows to precisely determine the volume of gas to be stored.
  • the present invention therefore aims to overcome such drawbacks by proposing a method and a device for transmitting information between a saline cavity and the surface which make it possible to obtain information at any height of the cavity while allowing normal exploitation of the cavity.
  • a transmission method is provided. of information between a saline cavity and the soil surface, the cavity being drilled through layers of geological formation and connected to the surface by an access well at least partially cased by metal tubes and having at least one safety valve, the method being characterized in that it consists in: suspending a train of tools from a attachment system positioned in the access shaft downstream of the valve and in electrical contact with the metal tubes, the train of tools comprising at least one measuring device connected to the system attachment by a first section of conductive cable and a information transmitter / receiver operating by waves and connected to the measuring device by a second section of conductive cable, the transmitter / receiver being positioned so as to be in contact with a structural means linked to the cavity; and to make a coupling between the transmitter / receiver and the structural means in order to allow a transmission of information between the measuring device and the surface by wave propagation through the structural means.
  • the measuring device (s) being suspended from the system hooking positioned in the access shaft, it is thus possible to take measurements at any height in the cavity.
  • the measurements taken in the cavity are thus reliable.
  • the tool train being suspended downstream of the safety valve, it is not necessary open it to take the measurements which avoids any problem of safety and allows normal operation of the cavity.
  • the transmitter / receiver is in contact with the bottom of the cavity and works by electromagnetic waves propagating through layers of geological formation.
  • the coupling between the transmitter / receiver and the training layers geological is an electrical coupling which is carried out by the presence of a electrolyte covering the bottom of the cavity.
  • the electrolyte is preferably an electrically conductive brine permanently present at the bottom of the cavity.
  • the electrolyte can be added to the bottom of the cavity.
  • the transmitter / receiver works by mechanical waves and the coupling with the means of structure is a mechanical coupling which takes place through the presence of a vibrating element coupled by means of structure.
  • This vibrating element can be placed at the bottom of the cavity or be coupled to metal tubes.
  • the measuring device can be suspended in the cavity from a any height or be suspended directly in the well access. In the latter case, it is necessary to provide the device with measurement of an insulating coating in order to avoid any electrical contact between this and the metal tubes of the access shaft.
  • Figure 1 shows, in section, a saline storage cavity hydrocarbon underground with a device for implementing the process according to the invention.
  • the saline cavity 2 is drilled through geological formation layers (typically rock salt rock) and connected to the surface by an access shaft 4.
  • the cavity is formed in leaching with fresh water circulation to create the shape and the volume of the cavity.
  • a deposit of materials insoluble and brine 6 generally covers the bottom of the cavity.
  • the dimensions of the cavity thus formed are proportional to the volume desired storage.
  • the saline cavity may have a height of more than 200 meters.
  • the access shaft 4 comprises a cylindrical outer wall 8 which delimits an annular space 10 cemented with a covering column 12.
  • a device 14 (“Packer”) ensures the seal between the external wall of the cavity and the towing column.
  • a production column 16 (“casing") formed of metal tubes is lowered inside the sump column 12 to the bottom of the salt cavity to allow water circulation soft necessary for creating the cavity as well as replacing the brine by liquid or gas to be stored in the storage cavity underground. Once the cavity has been filled, the column of production 16 is generally sectioned at the roof of the cavity. A valve safety 18 is then placed across the production column to allow it to be closed.
  • a train of tools is suspended in the production column 16 to a hanging system 20.
  • the hanging system 20 is positioned in the production column in downstream of the safety valve 18 according to a series of steps which will be described later.
  • the hanging system 20 can be standard equipment consisting of at least three arms bracing on the internal walls of the production column. Such an arm hooking system allows injecting hydrocarbons into the cavity but not the racking operations.
  • the hanging system can also be constituted by a device conventionally positioned on a specific seat integrated in the production column, this type of device having the advantage compared to the previous one to allow to carry out racking operations as well as operations injection.
  • the attachment system 20 is in electrical contact with the internal walls of the metal tubes of the production column 16 (for example through his arms or the seat on which he is asserted).
  • the anchor point of the tool train can be positioned at a any part of the production column which is located downstream of the safety valve 18.
  • the tool train comprises at least one measuring device 22 suspended from the hanging system 20 by a conductive cable 24 so ensure electrical continuity between the measuring device (s) and the hanging system (only one measuring device is shown on the figure 1).
  • the conductive cables can be smooth steel wires, electrical cables or cables commonly used during work in smooth cable (“slick-line”) in the wells.
  • Measuring devices 22 contain logging tools (not shown) which can be pressure sensors, sensors temperature, samplers, flow meters, sonars, etc. They also include means for transmitting and receiving electrical signals, possibly a memory for storing measurements made by logging tools and a battery supply of these various pieces of equipment (not shown on the figures).
  • logging tools can be pressure sensors, sensors temperature, samplers, flow meters, sonars, etc. They also include means for transmitting and receiving electrical signals, possibly a memory for storing measurements made by logging tools and a battery supply of these various pieces of equipment (not shown on the figures).
  • the tool train further includes a transmitter / receiver 26 which forms an antenna operating by electromagnetic waves (waves radio, etc.) or mechanical (acoustic, seismic, etc.).
  • This transmitter / receiver is connected to the measuring device 22 via a conductive cable 28 to ensure electrical continuity between the transmitter / receiver and the measuring device to allow the means for transmitting and receiving electrical signals fitted to able to exchange information with the transmitter / receiver.
  • the cable conductor used, of the piano cord type, is a commonly used cable used during slick-line work in wells drilling.
  • the length of the cable 28 is calculated so that that the transmitter / receiver 26 is in contact with a structural means fixed linked to the cavity.
  • This structural means can be the bottom of the cavity, the sump column 12 or production column 16.
  • the transmitter / receiver 26 is in contact with the material depot insoluble and brine 6 which covers the bottom of the cavity.
  • the transmitter / receiver 26 can be coupled with the lower part of the production column 16 or with the lower part of the cover column 12 (dotted on the figure).
  • the connecting cable 28 is not necessary if the measure 22 is connected directly to the transmitter / receiver 26. Similarly, the connecting cable 24 can be avoided if the measuring device 22 is directly connected to the hanging system 20.
  • a cable 25 which plays the role at both mechanical connection cable 24 and transmission cable information 28.
  • the length of the tool train corresponds approximately to the distance between the plane salt water at the bottom of the cavity and the bottom of the production column and can go well over a hundred meters.
  • the rock salt rock constituting the layers of geological formation has a resistivity favorable to propagation such waves, i.e. of the order of several hundred ohms per metre.
  • the transmitter / receiver modulates waves having frequencies suitable for propagation across layers of geological formation is possible.
  • the waves used have a frequency lower than 1000 Hz.
  • the waves are moreover modulated depending on the information to be transmitted and its transmission power are of the order of a few Watts.
  • the coupling between the transmitter / receiver and the geological formation layers is of a nature electric.
  • the coupling between the transmitter / receiver and the structural means is mechanical in nature.
  • the acoustic waves are emitted by a vibrating element 26 (of the type piezoelectric) placed at the bottom of the cavity or coupled to the lower part the production column 16 or the casing column 12.
  • the vibrating element modulates waves having frequencies suitable for allow their propagation towards the surface.
  • the waves thus used have a frequency between 10 Hz and 1 kHz. They are also modulated according to the information to be transmitted and their power emission is of the order of a few Watts to a few kW.
  • Information transmitted by electromagnetic waves or mechanical from the cavity to the surface are the measurements made by the various logging tools fitted to the 22 measurement devices. waves carrying this information are picked up on the surface by a decoder 30 of which one of the poles is connected to the wellhead 31 and the other pole planted in the ground at a sufficient distance from the wellhead.
  • the decoder 30 decodes the waves transmitted by the transmitter / receiver in order to decipher the measurement values carried out by logging tools.
  • Information can be transmitted to the surface continuously and in real time or discontinuously by data packets stored in a memory of the measuring devices.
  • the transmission of information can also be done in reverse, i.e. from the surface to measuring devices.
  • the decoder 30 is also able to transmit electromagnetic or mechanical waves to the transmitter / receiver according to an identical propagation mode.
  • the information transmitted may make it possible to order the measuring devices, for example to change the frequency and the emission power of waves transmitted to the surface to preserve a maximum the battery fitted to these measuring devices.
  • the production column 16 is provided, at its upper end, two removable blowout preventers 32 which guarantee the tightness between the cavity and the surface during installation tool train place.
  • a sealing airlock 34 also removable, is positioned upstream of the two blowout preventers 32.
  • the airlock seal is disconnected from the production column to allow the installation of the transmitter / receiver. This is attached to a cable conductor wound on a pulley (reference 36 in FIGS. 2A to 2E) and crossing the airlock.
  • the airlock 34 is reconnected on the column production.
  • the blowout preventers 32 can then be opened to allow the transmitter / receiver to descend ( Figure 2A). In actuating the pulley 36, it is thus lowered into the column of production 16, downstream of the safety valve 18 which is also opened.
  • blowout preventers 32 are closed (FIG. 2B).
  • the choice of the descent height of the transmitter / receiver will play directly on the pitch in the cavity of the measuring devices. This choice is made taking into account in particular the depth of the cavity. Closing the blowout preventers 32 has the effect, on the one hand to ensure sealing between the cavity and the airlock, and on the other hand block the conductor cable to keep the transmitter / receiver in suspension.
  • the next step is to disconnect the airlock again 34 to cut the conductor cable upstream of the shutters anti-blowout 32, the transmitter / receiver 26 being kept in suspension in the production column thanks to the closure of these shutters.
  • a measuring device 22 is then fixed to the free end of the conductor cable connected to the transmitter / receiver and connected upstream to the cable wound on the pulley 36. This measuring device is installed in the disconnected airlock ( Figure 2C).
  • the airlock 34 is then reconnected to the column of production 16 ( Figure 2D), the blowout preventers 32 and the valve safety 18 are reopened and the measuring device 22 is lowered downstream of the safety valve. These last two steps are repeated to each measuring device that you want to hang in the cavity.
  • the measuring device (s) must preferably be positioned outside the production column (i.e. suspended in the cavity itself). Indeed, it is important to avoid electrical contact between these measuring devices and the internal walls of the production column. However, if it appears necessary to position one or more of these measuring devices in the production column, an insulating coating can be used to cover the measuring devices. Alternatively, a composite material insulator can be used for the realization of the case of these devices.
  • the tool train thus suspended in the production column, it is then possible to transmit information between the surface and the electromagnetic wave propagation measuring devices or mechanical through the structural means.
  • the method according to the invention which makes it possible to carry out measurements at any height in the cavity while allowing a Normal operation of the well has multiple advantages.
  • the method according to the invention has the advantage of allowing, during the filling operation of the cavity, obtain continuous and real-time monitoring of the various parameters physical properties of the cavity (temperature, pressure, etc.) which determine the useful storage volume. It is thus possible to store more fluid, especially hydrocarbon gas, safely.
  • Another advantage of continuous real-time monitoring of physical parameters of the cavity during the filling operation lies in the fact that it is possible to optimize the flow rate and therefore the duration of injection.
  • the measurements are made in the cavity and not at the well head which provides much more reliable results.
  • the method according to the invention can apply for different configurations of the cavity.
  • the illustrated example in the figures represents a configuration in which the column of production is sectioned at the roof of the cavity.
  • the steps for setting up the tool train are identical to those described above, the length between the hanging system and the transmitter / receiver being simply reduced.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
EP04291047A 2003-04-30 2004-04-22 Verfahren und Vorrichtung zur Datenübertragung zwischen Übertage und einem untertägigen Salzhohlraum Expired - Lifetime EP1473256B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305367A FR2854425B1 (fr) 2003-04-30 2003-04-30 Procede et dispositif de transmission d'informations entre une cavite saline et la surface du sol
FR0305367 2003-04-30

Publications (2)

Publication Number Publication Date
EP1473256A1 true EP1473256A1 (de) 2004-11-03
EP1473256B1 EP1473256B1 (de) 2006-11-15

Family

ID=32982348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04291047A Expired - Lifetime EP1473256B1 (de) 2003-04-30 2004-04-22 Verfahren und Vorrichtung zur Datenübertragung zwischen Übertage und einem untertägigen Salzhohlraum

Country Status (6)

Country Link
US (1) US7151465B2 (de)
EP (1) EP1473256B1 (de)
CA (1) CA2464991C (de)
DE (1) DE602004003161T2 (de)
DK (1) DK1473256T3 (de)
FR (1) FR2854425B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2559765A1 (en) * 2006-09-15 2008-03-15 C-Fer Technologies (1999) Inc. System and method for treating and producing oil
GB2471385B (en) * 2009-06-23 2011-10-19 Bruce Arnold Tunget Apparatus and methods for forming and using subterranean salt cavern
US8286492B2 (en) * 2009-12-09 2012-10-16 The Boeing Company Mode decomposition of sound waves using amplitude matching
DE102010038121A1 (de) * 2010-10-12 2012-04-12 Geiger Automotive Gmbh Kontaktstift
US9103204B2 (en) * 2011-09-29 2015-08-11 Vetco Gray Inc. Remote communication with subsea running tools via blowout preventer
CN108222919B (zh) * 2016-12-12 2021-08-03 中国石油天然气股份有限公司 应用于盐穴储气库注气排卤阶段的气水界面监测方法
CN109585870A (zh) * 2018-10-25 2019-04-05 中盐金坛盐化有限责任公司 基于盐穴的储能电池终止运行后处置方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400980A (en) * 1966-03-11 1968-09-10 Kalium Chemicals Ltd Apparatus for inserting down hole mechanism through bore holes
FR2205996A5 (en) * 1972-11-08 1974-05-31 Gaz De France Transmission of underground or underwater measurements - to surface receivers, e.g. for underground gas storage
EP0314654A1 (de) * 1987-10-23 1989-05-03 Saga Petroleum A.S. Verfahren und Vorrichtung zum Übertragen von Daten aus einem Bohrloch an die Oberfläche
WO1994029749A1 (en) * 1993-06-04 1994-12-22 Gas Research Institute, Inc. Method and apparatus for communicating signals from encased borehole
FR2785017A1 (fr) * 1998-10-23 2000-04-28 Geoservices Methode et systeme de transmission d'informations par onde electromagnetique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161715A (en) * 1977-09-02 1979-07-17 Electric Power Research Institute, Inc. Method and apparatus for measuring the interior dimensions of a hollow body
US4474053A (en) * 1982-08-25 1984-10-02 Diamond Shamrock Chemicals Company Storage or disposal cavern leak detection and loss prevention
US5129759A (en) * 1991-07-23 1992-07-14 Pb-Kbb, Inc. Offshore storage facility and terminal
US5305828A (en) * 1993-04-26 1994-04-26 Halliburton Company Combination packer/safety valve assembly for gas storage wells
US7451605B2 (en) * 2001-12-19 2008-11-18 Conversion Gas Imports, L.P. LNG receiving terminal that primarily uses compensated salt cavern storage and method of use
US7080699B2 (en) * 2004-01-29 2006-07-25 Schlumberger Technology Corporation Wellbore communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400980A (en) * 1966-03-11 1968-09-10 Kalium Chemicals Ltd Apparatus for inserting down hole mechanism through bore holes
FR2205996A5 (en) * 1972-11-08 1974-05-31 Gaz De France Transmission of underground or underwater measurements - to surface receivers, e.g. for underground gas storage
EP0314654A1 (de) * 1987-10-23 1989-05-03 Saga Petroleum A.S. Verfahren und Vorrichtung zum Übertragen von Daten aus einem Bohrloch an die Oberfläche
WO1994029749A1 (en) * 1993-06-04 1994-12-22 Gas Research Institute, Inc. Method and apparatus for communicating signals from encased borehole
FR2785017A1 (fr) * 1998-10-23 2000-04-28 Geoservices Methode et systeme de transmission d'informations par onde electromagnetique

Also Published As

Publication number Publication date
CA2464991C (en) 2011-02-08
FR2854425A1 (fr) 2004-11-05
US7151465B2 (en) 2006-12-19
DE602004003161T2 (de) 2007-09-06
US20040246140A1 (en) 2004-12-09
FR2854425B1 (fr) 2005-07-29
CA2464991A1 (en) 2004-10-30
DE602004003161D1 (de) 2006-12-28
DK1473256T3 (da) 2007-03-19
EP1473256B1 (de) 2006-11-15

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