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EP 3 365 410 A1

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(43) Date of publication: 29.08.2018 Bulletin 2018/35 (21) Application number: 16733210.5 (22) Date of filing: 17.06.2016

(51) International Patent Classification (IPC):  C09K 8/80(2006.01) E21B 43/267(2006.01) C09K 8/64(2006.01) (86) International application number: PCT/IB2016/053637 (87) International publication number: WO 2017/025821 (16.02.2017 Gazette 2017/07)

(84) Designated Contracting States: 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 Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 12.08.2015 US 201514825089 02.11.2015 US 201562249777 P 09.06.2016 US 201662347702 P 09.06.2016 US 201662347708 P (71) Applicant: Prostim Labs, LLC Houston, TX 77024 (US)

(72) Inventor: THRASH, John Houston, Texas 77024 (US) (74) Representative: J A Kemp  14 South Square Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)