GB2367574A8 - Microelectromechanical switch for a downhole tool - Google Patents

Microelectromechanical switch for a downhole tool

Info

Publication number: GB2367574A8
Authority: GB; United Kingdom
Prior art keywords: downhole tool; microelectromechanical switch; microelectromechanical; switch; downhole
Prior art date: 2000-09-05
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

GB0121360A

Other versions

GB2367574A (en

GB2367574B (en

GB0121360D0 (en

Inventor

Nolan C Lerche

James E Brooks

Cameron C Abnet

Clarence Chui

Stuart B Brown

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.)

Schlumberger Holdings Ltd

Original Assignee

Schlumberger Holdings Ltd

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.)

2000-09-05

Filing date

2001-09-04

Publication date

2002-04-17

2001-09-04 Application filed by Schlumberger Holdings Ltd filed Critical Schlumberger Holdings Ltd

2001-09-04 Priority to GB0223416A priority Critical patent/GB2379684B/en

2001-10-24 Publication of GB0121360D0 publication Critical patent/GB0121360D0/en

2002-04-10 Publication of GB2367574A publication Critical patent/GB2367574A/en

2002-04-17 Publication of GB2367574A8 publication Critical patent/GB2367574A8/en

2003-02-19 Application granted granted Critical

2003-02-19 Publication of GB2367574B publication Critical patent/GB2367574B/en

2021-09-04 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/1185—Ignition systems
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2083—Bridging contact surfaces directed at an oblique angle with respect to the movement of the bridge
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H59/00—Electrostatic relays; Electro-adhesion relays
- H01H59/0009—Electrostatic relays; Electro-adhesion relays making use of micromechanics

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Geology (AREA)
Mining & Mineral Resources (AREA)
Physics & Mathematics (AREA)
Environmental & Geological Engineering (AREA)
Fluid Mechanics (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Micromachines (AREA)
Drilling And Exploitation, And Mining Machines And Methods (AREA)

GB0121360A 2000-09-05 2001-09-04 Switches for downhole use Expired - Fee Related GB2367574B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB0223416A GB2379684B (en)	2000-09-05	2001-09-04	Switches for downhole use

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US23007700P	2000-09-05	2000-09-05

Publications (4)

Publication Number	Publication Date
GB0121360D0 GB0121360D0 (en)	2001-10-24
GB2367574A GB2367574A (en)	2002-04-10
GB2367574A8 true GB2367574A8 (en)	2002-04-17
GB2367574B GB2367574B (en)	2003-02-19

Family

ID=22863864

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0121360A Expired - Fee Related GB2367574B (en)	2000-09-05	2001-09-04	Switches for downhole use

Country Status (4)

Country	Link
BR (1)	BR0107051B1 (en)
CA (1)	CA2356793C (en)
DE (1)	DE10143363A1 (en)
GB (1)	GB2367574B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7336474B2 (en)	1999-09-23	2008-02-26	Schlumberger Technology Corporation	Microelectromechanical devices
CN102064041B (en) *	2010-12-16	2013-04-03	东南大学	Normally-off state field emission type radio frequency micromechanical switch
CN102064042B (en) *	2010-12-16	2013-04-03	东南大学	Normally open state field emission type radio frequency micro-mechanical switch
US11994008B2 (en)	2018-08-10	2024-05-28	Gr Energy Services Management, Lp	Loaded perforating gun with plunging charge assembly and method of using same
US11078763B2 (en)	2018-08-10	2021-08-03	Gr Energy Services Management, Lp	Downhole perforating tool with integrated detonation assembly and method of using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5700969A (en) *	1995-05-10	1997-12-23	Titan Specialties, Inc.	Underground jet perforating using resistive blasting caps
AU6178400A (en) *	1999-12-13	2001-06-18	Memlink Ltd.	Switching device and method of fabricating the same

2001
- 2001-09-04 DE DE2001143363 patent/DE10143363A1/en not_active Withdrawn
- 2001-09-04 GB GB0121360A patent/GB2367574B/en not_active Expired - Fee Related
- 2001-09-04 CA CA 2356793 patent/CA2356793C/en not_active Expired - Fee Related
- 2001-09-05 BR BR0107051A patent/BR0107051B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
GB2367574A (en)	2002-04-10
GB2367574B (en)	2003-02-19
BR0107051A (en)	2003-04-08
CA2356793A1 (en)	2002-03-05
BR0107051B1 (en)	2011-07-12
CA2356793C (en)	2007-05-15
GB0121360D0 (en)	2001-10-24
DE10143363A1 (en)	2002-05-16

Publication	Publication Date	Title
GB2366815B (en)	2004-03-24	A well cleaning tool
GB2362405B (en)	2004-11-03	Gripper assembly for downhole tools
GB2366579B (en)	2002-10-30	Activating mechanism for a downhole tool
AU147712S (en)	2002-05-06	Case for a handtool
GB2374337B (en)	2003-03-12	A tool housing
GB2397839B (en)	2005-07-27	Device for performing a downhole operation
AU146961S (en)	2002-03-08	A hammer drill
AU151684S (en)	2003-05-13	A cordless drill
AU146962S (en)	2002-03-08	A drill
GB0126239D0 (en)	2002-01-02	Communicating with a downhole tool
GB0023731D0 (en)	2000-11-08	A floor tool
GB2367574A8 (en)	2002-04-17	Microelectromechanical switch for a downhole tool
GB2361204B (en)	2003-12-03	An attachment for a percussive tool
GB0026458D0 (en)	2000-12-13	Downhole tool
HK1036562A2 (en)	2001-12-14	A stamp switch
HK1036561A2 (en)	2001-12-14	A stamp switch
GB2367947B (en)	2004-06-16	A switch
AUPQ780500A0 (en)	2000-06-22	A tool extension
GB0125956D0 (en)	2001-12-19	Tool for a key
GB2378723B (en)	2003-11-26	Downhole well tool
GB2361102B (en)	2003-07-16	A pressure-actuated switch
GB2399122B (en)	2005-01-12	Drillable downhole tool
GB0003846D0 (en)	2000-04-05	Downhole tool
AU2001261908A1 (en)	2001-12-11	A tool extension
AU145243S (en)	2001-09-11	A tool bag

Legal Events

Date	Code	Title	Description
2018-05-23	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20170904