EP3194191A1 - Suspension of sensor components in high shock applications - Google Patents

Suspension of sensor components in high shock applications

Info

Publication number
EP3194191A1
EP3194191A1 EP14902202.2A EP14902202A EP3194191A1 EP 3194191 A1 EP3194191 A1 EP 3194191A1 EP 14902202 A EP14902202 A EP 14902202A EP 3194191 A1 EP3194191 A1 EP 3194191A1
Authority
EP
European Patent Office
Prior art keywords
suspension assembly
outer housing
radial
axial
coiled spring
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
EP14902202.2A
Other languages
German (de)
French (fr)
Other versions
EP3194191A4 (en
EP3194191B1 (en
Inventor
Jiyuan Liu
Helene Clair Climent
Adam Paul Graebner
Calvin Lawrence Banks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes ESP Inc
Original Assignee
GE Oil and Gas ESP Inc
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 GE Oil and Gas ESP Inc filed Critical GE Oil and Gas ESP Inc
Publication of EP3194191A1 publication Critical patent/EP3194191A1/en
Publication of EP3194191A4 publication Critical patent/EP3194191A4/en
Application granted granted Critical
Publication of EP3194191B1 publication Critical patent/EP3194191B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments

Definitions

  • This application relates generally to sensors and sensitive instruments and more particularly, but not by way of limitation, to a suspension system for supporting sensor components that resists shock and vibration.
  • Sensors are often susceptible to damage or performance degradation when exposed to mechanical shock and vibration.
  • sensor components In downhole applications, sensor components must be made to withstand inhospitable conditions that include elevated temperatures, pressures and mechanical shock. Fragile sensor components must be suspended in a manner that will protect them from damage or performance failures when exposed to shock or vibration.
  • Preferred embodiments of the present invention include a suspension assembly for supporting a shock-sensitive component includes an outer housing and one or more radial canted coil springs that surround and support the shock-sensitive component.
  • Each of the plurality of radial canted coil springs is preferably a toroid.
  • the exterior of each of the plurality of radial canted coil springs is in contact with the outer housing and the interior of each of the plurality of canted radial canted coil springs is in contact with the exterior of the shock-sensitive component.
  • the radial canted coil springs dampen mechanical shock and vibration applied in a lateral direction.
  • the suspension assembly optionally includes an axial canted coil spring that dampens mechanical shock in the axial direction.
  • the outer housing may include grooves that locate the radial canted coil springs within the suspension assembly.
  • the present invention includes a downhole instrument for measuring a condition in a wellbore.
  • the downhole instrument includes a sensor module, which in turn includes a sensor and a suspension assembly that supports to sensor within the sensor module.
  • the suspension assembly preferably includes an outer housing that contains the sensor, an annulus between the interior surface of the outer housing and the sensor, and a plurality of radial coiled springs.
  • Each of the plurality of radial coiled springs preferably comprises a toroidal coiled spring that is positioned within the annulus between the outer housing and the sensor.
  • the suspension assembly optionally includes an axial coiled spring.
  • FIG. 1 is an elevational view of a downhole instrument constructed in accordance with a preferred embodiment.
  • FIG. 2 is cross-sectional elevational view of the suspension assembly of the downhole instrument of FIG. 1.
  • FIG. 3 is cross-sectional top view of the suspension assembly of the downhole instrument of FIG. 2.
  • FIG. 4 is a perspective view of a toroidal canted coil spring of the suspension assembly of FIGS. 2 and 3.
  • FIG. 1 shows an elevational view of a downhole instrument 100 attached to a deployment cable 102.
  • the downhole instrument 100 and deployment cable 102 are disposed in a wellbore 104, which is drilled for the production of a fluid such as water or petroleum.
  • a fluid such as water or petroleum.
  • the term "petroleum” refers broadly to all mineral hydrocarbons, such as crude oil, gas and combinations of oil and gas.
  • the downhole instrument 100 includes a sensor module 106.
  • the sensor module 106 may include sensors, analyzers, control systems, power systems, data processors and communication systems, all of which are well-known in the art.
  • the deployment cable 102 connects the downhole instrument to surface-based facilities and provides power and communication to and from the downhole instrument 100.
  • the downhole instrument 100 may alternatively be configured as part of a larger downhole assembly.
  • the downhole instrument 100 is attached to a submersible pumping system or as part of a measurement while drilling system. If the downhole instrument 100 is incorporated within a measurement while drilling system, the instrument 100 may be powered by one or more batteries rather than through an umbilical extending to surface-based power supplies.
  • downhole instrument 100 may also be implemented in horizontal and non- vertical wellbores.
  • the preferred embodiments may also find utility in surface pumping applications and in other applications in which a sensor or other sensitive component is exposed to the potential of shock and vibration.
  • FIGS. 2 and 3 shown therein are elevational and top cross- sectional views, respectively, of a suspension assembly 108 constructed in accordance with a preferred embodiment.
  • the suspension assembly 108 is incorporated within the sensor module 106.
  • the suspension assembly 108 preferably includes an outer housing 110, one or more radial coiled springs 112, one or more axial coiled springs 114, a sealed cap 116, a locking ring 118 and a shock and vibration sensitive component 120.
  • the space between the interior of the outer housing 110 and the exterior of the component 120 defines an annulus 122.
  • the outer housing 110 preferably provides an access port 124 for making connections to the component 120.
  • the component 120 is preferably selected from the group of sensitive components that includes scintillators, gamma ray detectors, x-ray detectors, accelerometers, photomultipliers, and other shock-sensitive components. It will be appreciated, however, that the component 120 could alternatively be selected from other mechanical, electrical or electro-mechanical devices and that the component 120 and suspension assembly 108 could be positioned outside the sensor module 106.
  • the radial coiled springs 112 are sized and configured to occupy the annular space between the interior of the outer housing 110 and the exterior of the component 120.
  • the axial coiled springs 114 are sized and configured to occupy the space between the end of the component 120 and the sealed cap 116.
  • the radial and axial coiled springs 112, 114 are preferably toroidal and canted coiled springs that are constructed from a resilient metal.
  • the canted coiled springs preferably exhibit a resilient and substantially uniform force that increases less than conventional springs during deflection.
  • each of the radial canted coil springs 112 is in contact with the outer housing 110 and the interior of each of the plurality of canted radial canted coil springs 112 is in contact with the exterior of the component 120.
  • the suspension assembly 108 optionally includes a force distribution plate 130 positioned between the component 120 and the axial spring 114. The force distribution plate 130 more evenly distributes the application of forces between the axial spring 114 and the component 120.
  • FIG. 4 shown therein is a front perspective view of a particularly preferred embodiment of the radial and axial coiled springs 112, 114.
  • the radial and axial coiled springs 112, 114 include a polymer envelope 126 that entirely or partially encompasses the radial and axial coiled springs 112, 114.
  • the envelope is constructed from polytetrafluoroethylene (PTFE), which is available from a number of commercial sources.
  • PTFE polytetrafluoroethylene
  • the outer housing 110 preferably includes one or more grooves 128 at selected locations along the interior of the outer housing 110.
  • the machined grooves 128 are preferably machined in the outer housing 110 and sized and configured to accept the one or more radial coiled springs 112.
  • the suspension assembly 108 includes three radial coiled springs 112, each disposed in a separate groove 128. The combined use of the radial coiled springs 112 and the grooves 128 facilitates the manufacturing process because the radial coiled springs 112 can more easily be located in the appropriate place within the suspension assembly 108.
  • the radial coiled springs 112 reduce mechanical shock applied from a lateral direction by absorbing a portion of the kinetic energy imparted on the suspension assembly 108.
  • the axial coiled spring 114 absorbs a portion of the kinetic energy to reduce the shock applied to the component 120.
  • the outer housing 110, the radial coiled springs 112 and the axial coiled springs 114 are preferably sized to permit the component 120 to deflect up to a predetermined threshold amount. Together, the outer housing 110, radial coiled springs 112 and axial coiled springs 114 provide a durable and resilient suspension system that is cost-effective and easy to manufacture.

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Abstract

A suspension assembly for supporting a shock-sensitive component includes an outer housing and a plurality of radial canted coil springs that surround and support the shock- sensitive component. Each of the plurality of radial canted coil springs is preferably a toroid. The exterior of each of the plurality of radial canted coil springs is in contact with the outer housing and the interior of each of the plurality of canted radial canted coil springs is in contact with the exterior of the shock-sensitive component. The radial canted coil springs dampen mechanical shock and vibration applied in a lateral direction. The suspension assembly optionally includes an axial canted coil spring that dampens mechanical shock in the axial direction. The outer housing may include grooves that locate the radial canted coil springs within the suspension assembly.

Description

SUSPENSION OF SENSOR COMPONENTS IN HIGH SHOCK APPLICATIONS
Field of the Invention
[001] This application relates generally to sensors and sensitive instruments and more particularly, but not by way of limitation, to a suspension system for supporting sensor components that resists shock and vibration.
Background
[002] Sensors are often susceptible to damage or performance degradation when exposed to mechanical shock and vibration. In downhole applications, sensor components must be made to withstand inhospitable conditions that include elevated temperatures, pressures and mechanical shock. Fragile sensor components must be suspended in a manner that will protect them from damage or performance failures when exposed to shock or vibration.
[003] In the past designers have suspended sensor components with leaf springs and wave springs to dampen shock and vibration. Although generally accepted, the use of leaf springs and wave springs complicates the manufacturing process and may produce inconsistent results. Accordingly, there is a need for an improved mechanism for suspending sensor components in a downhole environment. It is to this and other needs that the preferred embodiments are directed.
Summary of the Invention
[004] Preferred embodiments of the present invention include a suspension assembly for supporting a shock-sensitive component includes an outer housing and one or more radial canted coil springs that surround and support the shock-sensitive component. Each of the plurality of radial canted coil springs is preferably a toroid. The exterior of each of the plurality of radial canted coil springs is in contact with the outer housing and the interior of each of the plurality of canted radial canted coil springs is in contact with the exterior of the shock-sensitive component. The radial canted coil springs dampen mechanical shock and vibration applied in a lateral direction. The suspension assembly optionally includes an axial canted coil spring that dampens mechanical shock in the axial direction. The outer housing may include grooves that locate the radial canted coil springs within the suspension assembly.
[005] In another preferred embodiment, the present invention includes a downhole instrument for measuring a condition in a wellbore. The downhole instrument includes a sensor module, which in turn includes a sensor and a suspension assembly that supports to sensor within the sensor module. The suspension assembly preferably includes an outer housing that contains the sensor, an annulus between the interior surface of the outer housing and the sensor, and a plurality of radial coiled springs. Each of the plurality of radial coiled springs preferably comprises a toroidal coiled spring that is positioned within the annulus between the outer housing and the sensor. The suspension assembly optionally includes an axial coiled spring.
Brief Description of the Drawings
[006] FIG. 1 is an elevational view of a downhole instrument constructed in accordance with a preferred embodiment.
[007] FIG. 2 is cross-sectional elevational view of the suspension assembly of the downhole instrument of FIG. 1. [008] FIG. 3 is cross-sectional top view of the suspension assembly of the downhole instrument of FIG. 2.
[009] FIG. 4 is a perspective view of a toroidal canted coil spring of the suspension assembly of FIGS. 2 and 3.
Detailed Description of the Preferred Embodiment
[010] In accordance with a preferred embodiment of the present invention, FIG. 1 shows an elevational view of a downhole instrument 100 attached to a deployment cable 102. The downhole instrument 100 and deployment cable 102 are disposed in a wellbore 104, which is drilled for the production of a fluid such as water or petroleum. As used herein, the term "petroleum" refers broadly to all mineral hydrocarbons, such as crude oil, gas and combinations of oil and gas.
[011] The downhole instrument 100 includes a sensor module 106. The sensor module 106 may include sensors, analyzers, control systems, power systems, data processors and communication systems, all of which are well-known in the art. The deployment cable 102 connects the downhole instrument to surface-based facilities and provides power and communication to and from the downhole instrument 100. It will be appreciated that the downhole instrument 100 may alternatively be configured as part of a larger downhole assembly. For example, in an alternate preferred embodiment, the downhole instrument 100 is attached to a submersible pumping system or as part of a measurement while drilling system. If the downhole instrument 100 is incorporated within a measurement while drilling system, the instrument 100 may be powered by one or more batteries rather than through an umbilical extending to surface-based power supplies. Although demonstrated in a vertical wellbore 104, it will be appreciated that downhole instrument 100 may also be implemented in horizontal and non- vertical wellbores. The preferred embodiments may also find utility in surface pumping applications and in other applications in which a sensor or other sensitive component is exposed to the potential of shock and vibration.
[012] Turning to FIGS. 2 and 3, shown therein are elevational and top cross- sectional views, respectively, of a suspension assembly 108 constructed in accordance with a preferred embodiment. In the presently preferred embodiment, the suspension assembly 108 is incorporated within the sensor module 106. The suspension assembly 108 preferably includes an outer housing 110, one or more radial coiled springs 112, one or more axial coiled springs 114, a sealed cap 116, a locking ring 118 and a shock and vibration sensitive component 120. The space between the interior of the outer housing 110 and the exterior of the component 120 defines an annulus 122. The outer housing 110 preferably provides an access port 124 for making connections to the component 120.
[013] The component 120 is preferably selected from the group of sensitive components that includes scintillators, gamma ray detectors, x-ray detectors, accelerometers, photomultipliers, and other shock-sensitive components. It will be appreciated, however, that the component 120 could alternatively be selected from other mechanical, electrical or electro-mechanical devices and that the component 120 and suspension assembly 108 could be positioned outside the sensor module 106.
[014] The radial coiled springs 112 are sized and configured to occupy the annular space between the interior of the outer housing 110 and the exterior of the component 120. The axial coiled springs 114 are sized and configured to occupy the space between the end of the component 120 and the sealed cap 116. The radial and axial coiled springs 112, 114 are preferably toroidal and canted coiled springs that are constructed from a resilient metal. The canted coiled springs preferably exhibit a resilient and substantially uniform force that increases less than conventional springs during deflection. The exterior of each of the radial canted coil springs 112 is in contact with the outer housing 110 and the interior of each of the plurality of canted radial canted coil springs 112 is in contact with the exterior of the component 120. The suspension assembly 108 optionally includes a force distribution plate 130 positioned between the component 120 and the axial spring 114. The force distribution plate 130 more evenly distributes the application of forces between the axial spring 114 and the component 120.
[015] Turning to FIG. 4, shown therein is a front perspective view of a particularly preferred embodiment of the radial and axial coiled springs 112, 114. In the particularly preferred embodiment depicted in FIGS. 3 and 4, the radial and axial coiled springs 112, 114 include a polymer envelope 126 that entirely or partially encompasses the radial and axial coiled springs 112, 114. In highly preferred embodiments, the envelope is constructed from polytetrafluoroethylene (PTFE), which is available from a number of commercial sources. The envelope 126 protects the component 120 from direct contact with the radial and axial coiled springs 112, 114.
[016] The outer housing 110 preferably includes one or more grooves 128 at selected locations along the interior of the outer housing 110. The machined grooves 128 are preferably machined in the outer housing 110 and sized and configured to accept the one or more radial coiled springs 112. In the particularly preferred embodiment depicted in FIG. 2, the suspension assembly 108 includes three radial coiled springs 112, each disposed in a separate groove 128. The combined use of the radial coiled springs 112 and the grooves 128 facilitates the manufacturing process because the radial coiled springs 112 can more easily be located in the appropriate place within the suspension assembly 108.
[017] During use, the radial coiled springs 112 reduce mechanical shock applied from a lateral direction by absorbing a portion of the kinetic energy imparted on the suspension assembly 108. Similarly, when a shock is applied in the longitudinal direction, the axial coiled spring 114 absorbs a portion of the kinetic energy to reduce the shock applied to the component 120. The outer housing 110, the radial coiled springs 112 and the axial coiled springs 114 are preferably sized to permit the component 120 to deflect up to a predetermined threshold amount. Together, the outer housing 110, radial coiled springs 112 and axial coiled springs 114 provide a durable and resilient suspension system that is cost-effective and easy to manufacture.
[018] It is to be understood that even though numerous characteristics and advantages of various embodiments of the present invention have been set forth in the foregoing description, together with details of the structure and functions of various embodiments of the invention, this disclosure is illustrative only, and changes may be made in detail, especially in matters of structure and arrangement of parts within the principles of the present invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. It will be appreciated by those skilled in the art that the teachings of the present invention can be applied to other systems without departing from the scope and spirit of the present invention.

Claims

What is claimed is:
1. A suspension assembly for securing a sensitive component within a shock-resistant housing, the suspension assembly comprising:
an outer housing that contains the component, wherein the outer housing has an interior surface;
an annulus between the interior surface of the outer housing and the sensitive component; and
one or more radial coiled springs, wherein each of the one or more radial coiled springs comprises a toroidal coiled spring that is positioned within the annulus between the outer housing and the component.
2. The suspension assembly of claim 1, wherein the outer housing comprises one or more grooves along the interior surface and wherein each of the one or more radial coiled springs can be secured within a corresponding one of the one or more grooves.
3. The suspension assembly of claim 2, further comprising three radial coiled springs positioned in the annulus between the outer housing and the component, wherein each of the three radial coiled springs is a toroidal and canted coiled spring.
4. The suspension assembly of claim 3, wherein each of the three radial coiled springs further comprises a polymer envelope that at least partially surrounds the radial coiled spring.
5. The suspension assembly of claim 4, wherein the polymer envelope comprises a polytetrafluoroethylene envelope.
6. The suspension assembly of claim 1, further comprising:
a cap enclosing a first end of the outer housing; and
an axial coiled spring, wherein the axial coiled spring is captured between the cap and the component.
7. The suspension assembly of claim 6, wherein the axial coiled spring comprises a toroidal and canted coiled spring.
8. The suspension assembly of claim 7, wherein the axial coiled spring further comprises an envelope.
9. The suspension assembly of claim 8, wherein the axial coiled spring further comprises a polymer envelope.
10. The suspension assembly of claim 9, wherein the component is a sensor.
11. The suspension assembly of claim 9, wherein the component is selected from the group consisting of scintillators and photomultipliers.
12. A sensor module for measuring a condition in a wellbore, the sensor module comprising: a sensor; and
a suspension assembly that supports the sensor within the sensor module, wherein the suspension assembly comprises:
an outer housing that contains the sensor, wherein the outer housing has an interior surface;
an annulus between the interior surface of the outer housing and the sensor; and
a plurality of radial coiled springs, wherein each of the plurality of radial coiled springs comprises a toroidal coiled spring that is positioned within the annulus between the outer housing and the sensor.
13. The sensor module of claim 12, wherein the outer housing comprises a plurality of grooves along the interior surface and wherein each of the plurality of radial coiled springs can be secured within a corresponding one of the plurality of grooves.
14. The sensor module of claim 12, wherein the suspension assembly of further comprises:
a cap enclosing a first end of the outer housing;
a force distribution plate in contact with the component; and
an axial coiled spring, wherein the axial coiled spring is captured between the cap and the force distribution plate.
15. The sensor module of claim 14, wherein the axial coiled spring comprises a toroidal and canted coiled spring.
16. A suspension assembly for supporting a shock-sensitive device, the suspension assembly comprising:
an outer housing; and
a plurality of radial canted coil springs, wherein each of the plurality of radial canted coil springs is a toroid and wherein the exterior of each of the plurality of radial canted coil springs is in contact with the outer housing and the interior of each of the plurality of canted radial canted coil springs is in contact with the exterior of the shock-sensitive device.
17. The suspension assembly of claim 16, wherein each of the plurality of radial canted coil springs further includes a polymer envelope.
18. The suspension assembly of claim 16, wherein the outer housing further comprises a plurality of grooves extending along the interior surface and wherein each of the plurality of canted coil springs is secured within a corresponding one of the plurality of grooves.
19. The suspension assembly of claim 16 further comprising:
a cap enclosing a first end of the outer housing;
a force distribution plate in contact with the component; and
an axial canted coiled spring, wherein the axial coiled spring is captured between the cap and the force distribution plate.
20. The suspension assembly of claim 19, wherein the axial canted coil further includes a polymer envelope.
EP14902202.2A 2014-09-17 2014-09-17 Suspension of sensor components in high shock applications Active EP3194191B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/056176 WO2016043741A1 (en) 2014-09-17 2014-09-17 Suspension of sensor components in high shock applications

Publications (3)

Publication Number Publication Date
EP3194191A1 true EP3194191A1 (en) 2017-07-26
EP3194191A4 EP3194191A4 (en) 2018-10-10
EP3194191B1 EP3194191B1 (en) 2020-06-17

Family

ID=55533625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14902202.2A Active EP3194191B1 (en) 2014-09-17 2014-09-17 Suspension of sensor components in high shock applications

Country Status (4)

Country Link
US (1) US20170248005A1 (en)
EP (1) EP3194191B1 (en)
CA (1) CA2960784A1 (en)
WO (1) WO2016043741A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10519762B2 (en) 2017-06-20 2019-12-31 Baker Hughes, A Ge Company, Llc Lateral support for downhole electronics

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435919A (en) * 1967-04-03 1969-04-01 Mechanics Research Inc Energy absorbing arrangement
GB8926223D0 (en) * 1989-11-20 1990-01-10 Solinst Canada Ltd Water level probe
US6538576B1 (en) * 1999-04-23 2003-03-25 Halliburton Energy Services, Inc. Self-contained downhole sensor and method of placing and interrogating same
US7849928B2 (en) * 2008-06-13 2010-12-14 Baker Hughes Incorporated System and method for supporting power cable in downhole tubing
US8878126B2 (en) * 2009-07-01 2014-11-04 Ge Oil & Gas Logging Services, Inc. Method for inspecting a subterranean tubular
US9004156B2 (en) * 2011-03-22 2015-04-14 Schlumberger Technology Corporation Flow activated sensor assembly
US9371714B2 (en) * 2011-07-20 2016-06-21 Tubel Energy LLC Downhole smart control system
US10523199B2 (en) * 2011-12-20 2019-12-31 Robert Hooper Housings for inductive proximity sensors
US9506356B2 (en) * 2013-03-15 2016-11-29 Rolls-Royce North American Technologies, Inc. Composite retention feature

Also Published As

Publication number Publication date
US20170248005A1 (en) 2017-08-31
EP3194191A4 (en) 2018-10-10
WO2016043741A1 (en) 2016-03-24
EP3194191B1 (en) 2020-06-17
CA2960784A1 (en) 2016-03-24

Similar Documents

Publication Publication Date Title
US9909408B2 (en) Protection of electronic devices used with perforating guns
EP0261291B1 (en) Apparatus for shock protection in boreholes
US10738591B2 (en) Multi chip module housing mounting in MWD, LWD and wireline downhole tool assemblies
US5742057A (en) Unitized scintillation detector assembly with axial and radial suspension systems
US8646519B2 (en) Low-profile suspension of logging sensor and method
CN106068363B (en) Packaging for electronics in downhole assemblies
EP1399760B1 (en) Flexible dynamic housing
RU2683798C2 (en) Gamma detector protection for downhole operations
US20170248005A1 (en) Suspension of sensor components in high shock applications
US20190024499A1 (en) Dilatant packaging of downhole components
JP2019513237A (en) Integrated nuclear sensor
WO2014146201A1 (en) System, method and apparatus for downhole vibration dampening
US11215017B2 (en) Perforating shock protection for sensors
CN210464700U (en) Instrument damping device
US7115873B2 (en) Compound optical coupler and support mechanism
CN103806895B (en) A kind of radioactivity logging device probe vibration-proof structure
US8997881B2 (en) Pressure bearing wall and support structure therefor
JPH0222884B2 (en)
CN211449506U (en) Shock-proof device for underground coal mine
CN117005854A (en) High-temperature-resistant and high-voltage micro-resistivity imaging logging instrument polar plate
CN104265195A (en) Centralizing mechanism for large-discharge-capacity while drilling gyro system

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170418

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

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 47/01 20120101AFI20180509BHEP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602014066869

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B60G0015060000

Ipc: E21B0047010000

A4 Supplementary search report drawn up and despatched

Effective date: 20180910

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 47/01 20120101AFI20180904BHEP

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190425

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200110

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014066869

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1281517

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200918

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20200921

Year of fee payment: 7

Ref country code: NO

Payment date: 20200921

Year of fee payment: 7

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20200617

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200917

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1281517

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201019

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201017

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014066869

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602014066869

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20210318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210401

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200917

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930

REG Reference to a national code

Ref country code: NO

Ref legal event code: MMEP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210930

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210917