WO2016153998A1 - Dispositif de stockage d'énergie à température régulée - Google Patents

Dispositif de stockage d'énergie à température régulée Download PDF

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Publication number
WO2016153998A1
WO2016153998A1 PCT/US2016/023138 US2016023138W WO2016153998A1 WO 2016153998 A1 WO2016153998 A1 WO 2016153998A1 US 2016023138 W US2016023138 W US 2016023138W WO 2016153998 A1 WO2016153998 A1 WO 2016153998A1
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WO
WIPO (PCT)
Prior art keywords
energy storage
storage device
recited
temperature control
control element
Prior art date
Application number
PCT/US2016/023138
Other languages
English (en)
Inventor
Norman Ward
Christine Ruth Jarvis
Remy PANARIELLO
Rogerio Tadeu Ramos
Original Assignee
Schlumberger Technology Corporation
Schlumberger Canada Limited
Services Petroliers Schlumberger
Schlumberger Technology B.V.
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 Schlumberger Technology Corporation, Schlumberger Canada Limited, Services Petroliers Schlumberger, Schlumberger Technology B.V. filed Critical Schlumberger Technology Corporation
Publication of WO2016153998A1 publication Critical patent/WO2016153998A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6572—Peltier elements or thermoelectric devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • Oil wells are created by drilling a hole into the earth, in some cases using a drilling rig that rotates a drill string (e.g., drill pipe) having a drill bit attached thereto.
  • the drilling rig does not rotate the drill bit.
  • the drill bit can be rotated downhole.
  • the drill bit aided by the weight of pipes (e.g., drill collars) cuts into rock within the earth.
  • Drilling fluid e.g., mud
  • Drilling fluid is pumped into the drill pipe and exits at the drill bit.
  • the drilling fluid may be used to cool the bit, lift rock cuttings to the surface, at least partially prevent destabilization of the rock in the wellbore, and/or at least partially overcome the pressure of fluids inside the rock so that the fluids do not enter the wellbore.
  • Other equipment can also be used for evaluating formations, fluids, production, other operations, and so forth.
  • Downhole equipment can be powered by remote energy sources that power the equipment via transmission lines (e.g., electrical, optical, mechanical, or hydraulic transmission lines). Downhole equipment can also be powered by local energy sources such as local generators or energy storage devices (e.g., battery packs) coupled with the equipment.
  • aspects of the disclosure can relate to an apparatus including an energy storage device and a temperature control element configured to heat or cool the energy storage device.
  • the temperature control element can be coupled to the energy storage device or at least partially integrated within a structure defining the energy storage device.
  • FIG. 1 illustrates an example system in which embodiments of a temperature controlled energy storage device can be implemented.
  • FIG. 2 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 3 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 4 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 5 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 6 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 7 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 8 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 9 illustrates various components of an example device that can implement embodiments of a temperature controlled energy storage device.
  • FIG. 1 depicts a wellsite system 100 in accordance with one or more embodiments of the present disclosure.
  • the wellsite can be onshore or offshore.
  • a borehole 102 is formed in subsurface formations by directional drilling.
  • a drill string 104 extends from a drill rig 106 and is suspended within the borehole 102.
  • the wellsite system 100 implements directional drilling using a rotary steerable system (RSS). For instance, the drill string 104 is rotated from the surface, and down hole devices move the end of the drill string 104 in a desired direction.
  • the drill rig 106 includes a platform and derrick assembly positioned over the borehole 102.
  • the drill rig 106 includes a rotary table 108, kelly 110, hook 112, rotary swivel 114, and so forth.
  • the drill string 104 is rotated by the rotary table 108, which engages the kelly 110 at the upper end of the drill string 104.
  • the drill string 104 is suspended from the hook 112 using the rotary swivel 114, which permits rotation of the drill string 104 relative to the hook 112.
  • this configuration is provided by way of example and is not meant to limit the present disclosure.
  • a top drive system is used.
  • a bottom hole assembly (BHA) 116 is suspended at the end of the drill string 104.
  • the bottom hole assembly 116 includes a drill bit 118 at its lower end.
  • the drill string 104 includes a number of drill pipes 120 that extend the bottom hole assembly 116 and the drill bit 118 into subterranean formations.
  • Drilling fluid (e.g., mud) 122 is stored in a tank and/or a pit 124 formed at the wellsite.
  • the drilling fluid can be water-based, oil- based, and so on.
  • a pump 126 displaces the drilling fluid 122 to an interior passage of the drill string 104 via, for example, a port in the rotary swivel 114, causing the drilling fluid 122 to flow downwardly through the drill string 104 as indicated by directional arrow 128.
  • the drilling fluid 122 exits the drill string 104 via ports (e.g., courses, nozzles) in the drill bit 118, and then circulates upwardly through the annulus region between the outside of the drill string 104 and the wall of the borehole 102, as indicated by directional arrows 130. In this manner, the drilling fluid 122 cools and lubricates the drill bit 118 and carries drill cuttings generated by the drill bit 118 up to the surface (e.g., as the drilling fluid 122 is returned to the pit 124 for recirculation).
  • ports e.g., courses, nozzles
  • the bottom hole assembly 116 includes a logging- while-drilling (LWD) module 132, a measuring-while-drilling (MWD) module 134, a rotary steerable system 136, a motor, and so forth (e.g., in addition to the drill bit 118).
  • LWD logging- while-drilling
  • MWD measuring-while-drilling
  • rotary steerable system 136 e.g., in addition to the drill bit 118.
  • the logging-while-drilling module 132 can be housed in a drill collar and can contain one or a number of logging tools. It should also be noted that more than one LWD module and/or MWD module can be employed (e.g. as represented by another logging-while-drilling module 138).
  • the logging-while drilling modules 132 and/or 138 include capabilities for measuring, processing, and storing information, as well as for communicating with surface equipment, and so forth.
  • the measuring-while-drilling module 134 can also be housed in a drill collar, and can contain one or more devices for measuring characteristics of the drill string 104 and drill bit 118.
  • the measuring- while-drilling module 134 can also include components for generating electrical power for the down hole equipment. This can include a mud turbine generator (also referred to as a "mud motor”) powered by the flow of the drilling fluid 122.
  • mud turbine generator also referred to as a "mud motor” powered by the flow of the drilling fluid 122.
  • this configuration is provided by way of example and is not meant to limit the present disclosure. In other embodiments, other power and/or battery systems can be employed.
  • the measuring- while-drilling module 134 can include one or more of the following measuring devices: a weight-on-bit measuring device, a torque measuring device, a vibration measuring device, a shock measuring device, a stick slip measuring device, a direction measuring device, an inclination measuring device, and so on.
  • the wellsite system 100 is used with controlled steering or directional drilling.
  • the rotary steerable system 136 is used for directional drilling.
  • directional drilling describes intentional deviation of the wellbore from the path it would naturally take.
  • directional drilling refers to steering the drill string 104 so that it travels in a desired direction.
  • directional drilling is used for offshore drilling (e.g., where multiple wells are drilled from a single platform).
  • directional drilling enables horizontal drilling through a reservoir, which enables a longer length of the wellbore to traverse the reservoir, increasing the production rate from the well.
  • directional drilling may be used in vertical drilling operations.
  • the drill bit 118 may veer off of a planned drilling trajectory because of the unpredictable nature of the formations being penetrated or the varying forces that the drill bit 118 experiences. When such deviation occurs, the wellsite system 100 may be used to guide the drill bit 118 back on course.
  • Drill assemblies can be used with, for example, a wellsite system (e.g., the wellsite system 100 described with reference to FIG. 1).
  • a drill assembly can comprise a bottom hole assembly suspended at the end of a drill string (e.g., in the manner of the bottom hole assembly 116 suspended from the drill string 104 depicted in FIG. 1).
  • a drill assembly is implemented using a drill bit.
  • this configuration is provided by way of example and is not meant to limit the present disclosure. In other embodiments, different working implement configurations are used. Further, use of drill assemblies in accordance with the present disclosure is not limited to wellsite systems described herein. Drill assemblies can be used in other various cutting and/or crushing applications, including earth boring applications employing rock scraping, crushing, cutting, and so forth.
  • a drill assembly includes a body for receiving a flow of drilling fluid.
  • the body comprises one or more crushing and/or cutting implements, such as conical cutters and/or bit cones having spiked teeth (e.g., in the manner of a roller-cone bit).
  • the bit cones roll along the bottom of the borehole in a circular motion.
  • new teeth come in contact with the bottom of the borehole, crushing the rock immediately below and around the bit tooth.
  • the tooth then lifts off the bottom of the hole and a high-velocity drilling fluid jet strikes the crushed rock chips to remove them from the bottom of the borehole and up the annulus.
  • a drill assembly comprising a conical cutter can be implemented as a steel milled-tooth bit, a carbide insert bit, and so forth.
  • roller-cone bits are provided by way of example and are not meant to limit the present disclosure.
  • a drill assembly is arranged differently.
  • the body of the bit comprises one or more polycrystalline diamond compact (PDC) cutters that shear rock with a continuous scraping motion.
  • PDC polycrystalline diamond compact
  • the body of a drill assembly can define one or more nozzles that allow the drilling fluid to exit the body (e.g., proximate to the crushing and/or cutting implements).
  • the nozzles allow drilling fluid pumped through, for example, a drill string to exit the body.
  • drilling fluid can be furnished to an interior passage of the drill string by the pump and flow downwardly through the drill string to a drill bit of the bottom hole assembly, which can be implemented using, for example, a drill assembly.
  • Drilling fluid then exits the drill string via nozzles in the drill bit, and circulates upwardly through the annulus region between the outside of the drill string and the wall of the borehole. In this manner, rock cuttings can be lifted to the surface, destabilization of rock in the wellbore can be at least partially prevented, the pressure of fluids inside the rock can be at least partially overcome so that the fluids do not enter the wellbore, and so forth.
  • any wellsite system can include downhole electronic equipment (e.g., sensors, actuators, communication devices, or the like).
  • downhole electronic equipment e.g., sensors, actuators, communication devices, or the like.
  • available power in the borehole may be limited near a bottom hole assembly.
  • electrical power can be generated by turbines while fluids are pumped into and/or out of a well, but this technique may not be efficient when there is little or no movement of fluids.
  • Batteries, energy cells, or capacitive elements can also be installed in electronic equipment to provide electrical power in a borehole, but batteries have a finite energy storage capacity, which limits the amount of time the equipment can be operated. In some cases, larger batteries may be used, but the amount of space available in the borehole is also finite, limiting the size of such batteries. In other cases, higher power density batteries may be used, but such batteries may be more prone to failure (e.g., in the high temperature operating conditions present downhole).
  • the availability of energy to various sensors, actuators, communication modules (e.g., receivers or transmitters) and other downhole equipment in oil wells is a difficult issue due to the harsh environment in terms of temperature and vibration. High temperatures (e.g., 200°C and above) can be encountered down hole, but equipment may also operate at room temperature.
  • Batteries can use lithium (Li) or lithium alloy in at least one of the electrodes (i.e., in the anode, the cathode, or both). As such, the maximum operating temperature of a battery may be limited by the melting point of lithium ( ⁇ 180°C). Alloys, such as lithium magnesium alloys, can be used in an electrode to increase the effective melting point of the electrode (e.g., the temperature at which at least a portion of the electrode begins to melt). Yet, it has also been found that batteries designed to operate well at high temperatures are sometimes unable to operate effectively at lower temperatures (e.g., less than 100 °C).
  • FIGS. 2 through 9 illustrate embodiments of a temperature controlled energy storage device 1.
  • a bottom hole assembly 116 can include downhole equipment coupled with an energy storage device that powers the downhole equipment.
  • downhole equipment powered by the energy storage device 1 can include a sensor, an actuator (e.g., motor, servo, or switch), a transmitter, a receiver, a controller, or the like.
  • the downhole equipment can include one or more components of the logging-while-drilling (LWD) module 132, the measuring-while-drilling (MWD) module 134, the rotary steerable system 136, and so forth.
  • the energy storage device 1 can be directly coupled (e.g., via a wired connection at two or more terminals 2) to the downhole equipment.
  • the energy storage device 1 can also be optically or electromagnetically coupled with the downhole equipment.
  • a temperature control element may include a heating element 3 (e.g., electrical resistance) attached to the energy storage device 1 in order to elevate a temperature of the energy storage device 1 when the energy storage device 1 is subject to a temperature below an effective operating temperature of the energy storage device 1.
  • the temperature control element can also include a cooling element or a selective temperature control element 5 (e.g., Peltier element) configured to selectively heat or cool the energy storage device 1.
  • the selective temperature control element 5 can be configured to pump heat in or out of the energy storage device 1 in order to elevate or reduce a temperature of the energy storage device 1 to an appropriate temperature for effective operability (e.g., the device may be configured so that the temperature remains within to a set or predetermined operating range).
  • a temperature sensor can also be attached to the energy storage device 1 and configured to monitor a temperature of the energy storage device 1.
  • a controller e.g., programmable logic device, processing unit, or the like
  • the controller can be configured to control the temperature control element based upon a detected temperature of the energy storage device 1. For example, the controller can cause the temperature control element to increase the temperature of the energy storage device 1 when the detected temperature is below an effective operating temperature or decrease the temperature of the energy storage device 1 when the detected temperature is above an effective operating temperature.
  • the temperature control element can be activated or deactivated with a switch 4, such as a bi-stable switch that can be activated by temperature.
  • the switch 4 can be part of an over temperature protection system.
  • FIGS. 4 through 6 show embodiments where the temperature control element can be at least partially wrapped around the energy storage device 1 (e.g., battery cell).
  • FIGS. 4 and 5 show embodiments where the temperature control element can include a heating wire 3 at least partially wrapped around the energy storage device 1.
  • FIG. 6 shows embodiments where the temperature control element can include a heating/cooling pad 7 at least partially wrapped around the energy storage device 1.
  • the heating/cooling pad 7 can include an electrical resistance, a Peltier element, or the like.
  • the temperature control element is in tight contact with the energy device 1.
  • the temperature control element can be printed, painted, deposited or glued to the surface of the energy storage device 1. Thermal insulating material can be added to minimize heat transfer to the environment.
  • a thermal insulator may be deposited over the wire 3, over the heating/cooling pad 7, or can be included within a structure defining the heating/cooling pad 7 (e.g., as an intermediate or outer layer).
  • the energy storage device 1 itself can be thermally insulated for improved temperature stability.
  • FIG. 7 shows an embodiment where the energy storage device 1 includes a cavity 8 configured to contain at least a portion of the temperature control element. For example, an electrical resistance or a Peltier element can be deposited within the cavity 8.
  • FIG. 9 shows an embodiment where the energy storage device 1 can include a cavity 11 (e.g., an indentation or well) that extends through a portion of the energy storage device 1.
  • FIG. 8 shows an example of an energy storage device 1 without a cavity.
  • a plug 10 is placed over the cavity 11. The plug 10 can be used to fill the energy storage device 1 with electrolyte or other fluid.
  • the energy storage device 1 may further include a feed-through 9 that provides connection to internal electrodes.
  • a feed-through 9 that provides connection to internal electrodes.
  • the energy storage device 1 may be configured in accordance with a non-cylindrical geometry, such as a rectangular prism, a battery pack or array of energy storage elements (e.g., energy storage cells or capacitors), and so forth.
  • the downhole anti-passivation power of an energy storage device 1 can be applied to heat other chemistries (e.g., in battery sub or the like).
  • additional energy from a lithium-thionyl chloride (LTC) battery can be applied to heat lithium polymer (Li- Poly) or lithium carbon monofluoride (CFx) batteries.
  • LTC lithium-thionyl chloride
  • CFx lithium carbon monofluoride
  • a heated lithium polymer cell may release more energy than it took to heat it up if sufficiently thermally insulated.
  • Printed wiring assemblies (PWAs) are inefficient at creating heat, and this can affect an ability to maintain a temperature of well-positioned cells during trip out with good thermal insulation.
  • LTC anti-passivation power can be used to charge rechargeable batteries, for example, in the battery sub.
  • anti-passivation refers to the prevention of the formation of a passivation layer or the reduction in the amount of a passivation layer that forms.
  • Anti-passivation power refers to the energy used to prevent a passivation layer from occurring or the reduction in the amount of a passivation layer that forms.
  • snap-switches can be used to force heat cells, for example, in down- hole environments where operation is close to the melting point of lithium.
  • the temperature control element can be included in the energy storage device 1.
  • the temperature control element can include a battery canister, a separator, a collector, additional layer integrated in an energy storage cell, or the like.
  • the temperature control element is not necessarily an external element or one that is deposited within a cavity of the energy storage device 1.
  • the temperature control element can be configured to transfer heat to or from the battery to a cold or hot external point (e.g., via heat pipes or other thermal conductors).
  • hot points can include locations proximate to the drill bit, and cold points can include locations in proximity of mud flow.
  • the energy storage device 1 can also be heated or cooled down by a fluid flow around the energy storage device 1.
  • the temperature control element can include a fluid path configured to transfer heat to or from the energy storage device 1.
  • the energy storage device 1 can also be heated or cooled down by applying or removing pressure.
  • the temperature control element may include an enclosure wherein pressure is increased to heat the energy storage device 1 and pressure is decreased to cool the energy storage device 1.
  • the temperature control element can include a positive temperature coefficient (PTC) element.
  • PTC elements can be effective because they are their own thermostat as they change their resistance based on the applied temperature.
  • a PTC element can operate similar to a bi-stable switch.
  • the energy storage device 1 includes a cavity (e.g., cavity 8) that extends through the energy storage device 1, and several energy storage devices 1 (e.g., annular batteries or cells) can be mounted on one single temperature control element that extends through cavities of the energy storage devices 1.
  • a first source e.g., energy from a generator
  • energy released from the drill bit or fluid flow may be used to power the temperature control element in downhole environments.
  • Heat can also be generated internally from I 2 R losses; if R is high due to a low temperature environment, the temperature of the energy storage device 1 can be raised by this effect.
  • means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not just structural equivalents, but also equivalent structures.
  • a nail and a screw may not be structural equivalents in that a nail employs a cylindrical surface to secure wooden parts together, whereas a screw employs a helical surface, in the environment of fastening wooden parts, a nail and a screw may be equivalent structures. It is the express intention of the applicant not to invoke means-plus- function for any limitations of any of the claims herein, except for those in which the claim expressly uses the words 'means for' together with an associated function.

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Abstract

L'invention concerne un système qui comprend un équipement de fond ; et un appareil couplé à l'équipement de fond pour alimenter l'équipement de fond. L'appareil comprend un dispositif de stockage d'énergie et un élément de régulation de température conçu pour chauffer ou refroidir le dispositif de stockage d'énergie ; le dispositif de stockage d'énergie comprenant un élément de batterie, une batterie ou un condensateur.
PCT/US2016/023138 2015-03-22 2016-03-18 Dispositif de stockage d'énergie à température régulée WO2016153998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562136595P 2015-03-22 2015-03-22
US62/136,595 2015-03-22

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WO2016153998A1 true WO2016153998A1 (fr) 2016-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
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