PL424767A1 - Additive to drilling fluid and method for its application aimed to reduce biodegradation of the drilling fluid - Google Patents

Additive to drilling fluid and method for its application aimed to reduce biodegradation of the drilling fluid

Info

Publication number
PL424767A1
PL424767A1 PL424767A PL42476718A PL424767A1 PL 424767 A1 PL424767 A1 PL 424767A1 PL 424767 A PL424767 A PL 424767A PL 42476718 A PL42476718 A PL 42476718A PL 424767 A1 PL424767 A1 PL 424767A1
Authority
PL
Poland
Prior art keywords
ppm
drilling fluid
amount
fluid
active substance
Prior art date
Application number
PL424767A
Other languages
Polish (pl)
Inventor
Anna Turkiewicz
Teresa Steliga
Piotr Kapusta
Joanna Brzeszcz
Original Assignee
Instytut Nafty I Gazu - Państwowy Instytut Badawczy
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 Instytut Nafty I Gazu - Państwowy Instytut Badawczy filed Critical Instytut Nafty I Gazu - Państwowy Instytut Badawczy
Priority to PL424767A priority Critical patent/PL424767A1/en
Publication of PL424767A1 publication Critical patent/PL424767A1/en

Links

Abstract

Przedmiotem zgłoszenia jest dodatek do płuczki wiertniczej charakteryzujący się tym, że stanowi go substancja czynna o nazwie 7-ethyl bicyclooxazolidine w połączeniu z substancją czynną 4,4-dimethyloxazolidine w stosunku objętościowym 1:1, będące pochodnymi oksazolidyny oraz zawiesina nano srebra. Zgłoszenie obejmuje też sposób ograniczenia biodegradacji płuczki wiertniczej charakteryzujący się tym, że do sterylnego szklanego pojemnika pobiera się próbkę płuczki wiertniczej, bezpośrednio po jej sporządzeniu, a następnie próbkę tę w warunkach laboratoryjnych poddaje się badaniom mikrobiologicznym metodą NPL, określając liczbę bakterii aerobowych, bakterii anaerobowych, zarodników grzybów pleśniowych i drożdży w 1 ml pobranego płynu, po czym w przypadku kiedy liczba jednej z czterech wyżej wymienionych grup mikroorganizmów wynosi od 102 do 104 jtk (jednostek tworzących kolonie) w 1 ml płynu, dodaje się do sporządzonej polimerowej cieczy wiertniczej pierwszą substancję czynną, którą stanowi 7-ethyl bicyclooxazolidine w ilości 250 ppm oraz drugą substancję czynną, którą stanowi 4,4-dimethyloxazolidine, w ilości 250 ppm, a po upływie od 2 do 4 dni użytkowania płuczki, dodaje się po uprzednim rozpuszczeniu w wodzie w stosunku objętościowym 1 : 10 płynnego preparatu z zawartością nano srebra w ilości odpowiadającej stężeniu 100 ppm, natomiast jeżeli liczba jednej z czterech wymienionych grup mikroorganizmów przekracza 104 jtk w 1 ml płynu, wówczas do płuczki wiertniczej dodaje się 7-ethyl bicyclooxazolidine w ilości 400 ppm oraz 4, 4-dimethyloxazolidine, w ilości 400 ppm, a także nano srebro w stężeniu 100 ppm.The subject of the application is an additive to drilling fluid, characterized by the fact that it is an active substance called 7-ethyl bicyclooxazolidine in combination with the active substance 4,4-dimethyloxazolidine in a 1: 1 volume ratio, which are derivatives of oxazolidine and a nano silver suspension. The application also includes a method of limiting the biodegradation of drilling mud, characterized by the fact that a drilling mud sample is taken into a sterile glass container, immediately after its preparation, and then the sample under laboratory conditions is subjected to microbiological tests using the NPL method, determining the number of aerobic bacteria, anaerobic bacteria, spores of mold and yeast fungi in 1 ml of the sampled fluid, then when the number of one of the four above-mentioned groups of microorganisms is from 102 to 104 cfu (colony forming units) in 1 ml of the fluid, the first active substance is added to the prepared polymer drilling fluid , which is 7-ethyl bicyclooxazolidine in the amount of 250 ppm and the second active substance, which is 4,4-dimethyloxazolidine, in the amount of 250 ppm, and after 2 to 4 days of using the scrubber, it is added after dissolving it in water in a volume ratio 1: 10 of a liquid formulation with nano content silver in an amount corresponding to a concentration of 100 ppm, and if the number of one of the four groups of microorganisms exceeds 104 cfu in 1 ml of fluid, then 7-ethyl bicyclooxazolidine in the amount of 400 ppm and 4, 4-dimethyloxazolidine in the amount of 400 ppm are added to the drilling fluid. as well as nano silver at a concentration of 100 ppm.

PL424767A 2018-03-05 2018-03-05 Additive to drilling fluid and method for its application aimed to reduce biodegradation of the drilling fluid PL424767A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL424767A PL424767A1 (en) 2018-03-05 2018-03-05 Additive to drilling fluid and method for its application aimed to reduce biodegradation of the drilling fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL424767A PL424767A1 (en) 2018-03-05 2018-03-05 Additive to drilling fluid and method for its application aimed to reduce biodegradation of the drilling fluid

Publications (1)

Publication Number Publication Date
PL424767A1 true PL424767A1 (en) 2019-09-09

Family

ID=67844630

Family Applications (1)

Application Number Title Priority Date Filing Date
PL424767A PL424767A1 (en) 2018-03-05 2018-03-05 Additive to drilling fluid and method for its application aimed to reduce biodegradation of the drilling fluid

Country Status (1)

Country Link
PL (1) PL424767A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196443A (en) * 1991-09-25 1993-03-23 Buckman Laboratories International, Inc. Synergistic combinations of 2-(thiocyanomethylthio) benzothiazole with a mixture of 4,4-dimethyloxazolidine and 3,4,4-trimethyloxazolidine in controlling fungal and bacterial growth in aqueous fluids
US20040014799A1 (en) * 2000-08-31 2004-01-22 Dagmar Antoni-Zimmermann Synergetic biocidal composition comprising 2-methylisothiazoline-3-on
US20130064899A1 (en) * 2010-05-26 2013-03-14 Thor Gmbh Synergistic biocide composition containing at least three biocide components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196443A (en) * 1991-09-25 1993-03-23 Buckman Laboratories International, Inc. Synergistic combinations of 2-(thiocyanomethylthio) benzothiazole with a mixture of 4,4-dimethyloxazolidine and 3,4,4-trimethyloxazolidine in controlling fungal and bacterial growth in aqueous fluids
US20040014799A1 (en) * 2000-08-31 2004-01-22 Dagmar Antoni-Zimmermann Synergetic biocidal composition comprising 2-methylisothiazoline-3-on
US20130064899A1 (en) * 2010-05-26 2013-03-14 Thor Gmbh Synergistic biocide composition containing at least three biocide components

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