EP3642297A4 - Drill fluid and method for tunneling - Google Patents

Drill fluid and method for tunneling Download PDF

Info

Publication number: EP3642297A4
Authority: EP; European Patent Office
Prior art keywords: tunneling; drill fluid; drill; fluid
Prior art date: 2017-06-23
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP18819655.4A

Other languages

German (de)

French (fr)

Other versions

EP3642297A1 (en

Inventor

Carl Keith Smith

Josh GAWRYLUK

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.)

Canadian Energy Services LP

Original Assignee

Canadian Energy Services LP

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.)

2017-06-23

Filing date

2018-06-22

Publication date

2021-03-17

2018-06-22 Application filed by Canadian Energy Services LP filed Critical Canadian Energy Services LP

2020-04-29 Publication of EP3642297A1 publication Critical patent/EP3642297A1/en

2021-03-17 Publication of EP3642297A4 publication Critical patent/EP3642297A4/en

Status Withdrawn legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/16—Clay-containing compositions characterised by the inorganic compounds other than clay
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/003—Means for stopping loss of drilling fluid
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for

Landscapes

Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
Dispersion Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Organic Chemistry (AREA)
Earth Drilling (AREA)
Curing Cements, Concrete, And Artificial Stone (AREA)

EP18819655.4A 2017-06-23 2018-06-22 Drill fluid and method for tunneling Withdrawn EP3642297A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US201762524361P	2017-06-23	2017-06-23
PCT/CA2018/050777 WO2018232532A1 (en)	2017-06-23	2018-06-22	Drill fluid and method for tunneling

Publications (2)

Publication Number	Publication Date
EP3642297A1 EP3642297A1 (en)	2020-04-29
EP3642297A4 true EP3642297A4 (en)	2021-03-17

Family

ID=64735441

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP18819655.4A Withdrawn EP3642297A4 (en)	2017-06-23	2018-06-22	Drill fluid and method for tunneling

Country Status (5)

Country	Link
EP (1)	EP3642297A4 (en)
AU (3)	AU2018286661B2 (en)
CA (2)	CA3030574C (en)
MA (1)	MA49467A (en)
WO (1)	WO2018232532A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1994009250A1 (en) *	1992-10-22	1994-04-28	Shell Internationale Research Maatschappij B.V.	Method for drilling and cementing a well
US20130126243A1 (en) *	2007-03-02	2013-05-23	Tech-Star Fluid Systems Inc.	Drilling fluid and method for drilling a wellbore
US20130206479A1 (en) *	2010-08-26	2013-08-15	Tech-Star Fluid Systems Inc.	Drilling fluid and method for drilling in coal-containing formations

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5260269A (en) *	1989-10-12	1993-11-09	Shell Oil Company	Method of drilling with shale stabilizing mud system comprising polycyclicpolyetherpolyol
WO2008106786A1 (en) *	2007-03-02	2008-09-12	Techstar Energy Services Inc.	Drilling fluid and method for drilling in coal-containing formations
CA2802048C (en) *	2013-01-08	2022-08-30	Tech-Star Fluid Systems Inc.	Drilling fluid and method for drilling a wellbore
CN104650823B (en) *	2015-02-11	2016-02-03	中国石油大学(北京)	Height ooze extra-high ooze reservoir protective material composition and drilling fluid and application thereof

2018
- 2018-06-22 MA MA049467A patent/MA49467A/en unknown
- 2018-06-22 CA CA3030574A patent/CA3030574C/en active Active
- 2018-06-22 EP EP18819655.4A patent/EP3642297A4/en not_active Withdrawn
- 2018-06-22 AU AU2018286661A patent/AU2018286661B2/en active Active
- 2018-06-22 WO PCT/CA2018/050777 patent/WO2018232532A1/en active Application Filing
- 2018-06-22 CA CA3061085A patent/CA3061085C/en active Active
2021
- 2021-03-02 AU AU2021201364A patent/AU2021201364B2/en active Active
- 2021-03-03 AU AU2021201374A patent/AU2021201374B2/en active Active

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1994009250A1 (en) *	1992-10-22	1994-04-28	Shell Internationale Research Maatschappij B.V.	Method for drilling and cementing a well
US20130126243A1 (en) *	2007-03-02	2013-05-23	Tech-Star Fluid Systems Inc.	Drilling fluid and method for drilling a wellbore
US20130206479A1 (en) *	2010-08-26	2013-08-15	Tech-Star Fluid Systems Inc.	Drilling fluid and method for drilling in coal-containing formations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018232532A1 *

Also Published As

Publication number	Publication date
AU2021201374B2 (en)	2023-03-23
CA3061085A1 (en)	2018-12-27
CA3061085C (en)	2020-09-08
AU2018286661A1 (en)	2020-02-13
AU2021201364B2 (en)	2022-12-22
AU2021201374A1 (en)	2021-03-18
EP3642297A1 (en)	2020-04-29
CA3030574A1 (en)	2018-12-27
WO2018232532A1 (en)	2018-12-27
CA3030574C (en)	2019-12-31
AU2021201364A1 (en)	2021-03-18
MA49467A (en)	2021-03-17
AU2018286661B2 (en)	2020-12-03

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Legal Events

Date	Code	Title	Description
2018-12-31	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2020-03-27	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
2020-03-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2020-04-29	17P	Request for examination filed	Effective date: 20200123
2020-04-29	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
2020-04-29	AX	Request for extension of the european patent	Extension state: BA ME
2020-05-20	RIN1	Information on inventor provided before grant (corrected)	Inventor name: SMITH, CARL KEITH Inventor name: GAWRYLUK, JOSH
2021-02-05	REG	Reference to a national code	Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: C09K0008240000 Ipc: E21B0021000000
2021-03-17	A4	Supplementary search report drawn up and despatched	Effective date: 20210211
2021-03-17	RIC1	Information provided on ipc code assigned before grant	Ipc: C09K 8/16 20060101ALI20210205BHEP Ipc: E21B 21/06 20060101ALI20210205BHEP Ipc: E21D 9/13 20060101ALI20210205BHEP Ipc: E21D 9/11 20060101ALI20210205BHEP Ipc: E21B 21/00 20060101AFI20210205BHEP
2023-02-03	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2023-03-08	17Q	First examination report despatched	Effective date: 20230206
2023-06-21	P01	Opt-out of the competence of the unified patent court (upc) registered	Effective date: 20230518
2023-10-13	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2023-11-15	18D	Application deemed to be withdrawn	Effective date: 20230617