JP6596068B2 - 殺微生物剤及びその使用 - Google Patents
殺微生物剤及びその使用 Download PDFInfo
- Publication number
- JP6596068B2 JP6596068B2 JP2017505459A JP2017505459A JP6596068B2 JP 6596068 B2 JP6596068 B2 JP 6596068B2 JP 2017505459 A JP2017505459 A JP 2017505459A JP 2017505459 A JP2017505459 A JP 2017505459A JP 6596068 B2 JP6596068 B2 JP 6596068B2
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- salt
- mmdtc
- dmdtc
- fluid
- sodium
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
- A01N47/14—Di-thio analogues thereof
-
- A—HUMAN NECESSITIES
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Description
本出願は2014年8月1日に出願された米国仮特許出願番号第62/032,095号明細書に基づく優先権の利益を主張するものである。この仮出願の全体は参照により援用される。
この実施例では、様々な濃度で殺生物剤を有するポリマー流体のインバージョン後の粘度を、殺生物剤を含まない対照と比較して分析した。分析した殺生物剤には、グルタルアルデヒド(GA)、N−メチルジチオカルバミン酸ナトリウム(SNMDTC)、ジメチルジチオカルバミン酸カリウム(PDMDTC)、及びSNMDCとPDMDTCの比率80:20の組み合わせが含まれていた。0.1%のポリアクリルアミド(PAM)(分子量約15Mダルトン)の活性な水性の原液を作り、約30分寝かせた。試験する試料それぞれのために、200ミリリットルの原液を取り出し、これに様々な濃度で殺生物剤を添加し、最も低い設定で5秒間ミキサーによって高速せん断をかけ、その後混合物の粘度をBrookfield粘度計によって測定した。試料は10秒の時点で平衡化したとみなし(粘度計のスピンドルの回転10秒後には最小限の変化が生じなかったため)、値を記録した。殺生物剤は250、500、750、及び1,000ppmの濃度で添加し、ミキサー(最も低い設定で)中で高せん断を5秒間かけ、その後に粘度を記録した。
この実施例では、殺生物剤/ポリマー流体及び実施例1の対照に対する熱の影響を分析した。試験した殺生物剤には、グルタルアルデヒド(GA)、N−メチルジチオカルバミン酸ナトリウム(SNMDTC)、ジメチルジチオカルバミン酸カリウム(PDMDTC)、SNMDTCとPDMDTCとのブレンド物、及び対照が含まれていた。いくつかの殺生物剤はポリマーを必要以上に粘性にする悪影響を有する場合があり、これは、高い粘度に維持された坑井孔はフローバックを妨げる可能性があることから、水圧破砕用途においては望ましくない。試験した各試料について、1,000ppmの殺生物剤を実施例1のポリアクリルアミド原液200gに添加した。試料を5秒間混ぜ合わせ(低い設定であるが高せん断で)、粘度を測定した。その後、試料を140°Fのオーブンに24時間入れ、これを室温まで冷却した(77°F)。
この実施例では、4つの異なる殺生物剤、すなわち1)N−メチルジチオカルバミン酸ナトリウム(SNMDTC)自体、2〜3)これと2つの比率のジメチルジチオカルバミン酸カリウム(PDMDTC)との組み合わせ、及び4)脱酸素剤に25%のグルタルアルデヒド(GA)溶液、を試験した。500mLのButterfield緩衝液が入ったビーカーに、脱酸素剤として200ppmの量の亜硫酸ナトリウム(Na2SO3)を添加し、pHと酸化還元電位(ORP)を記録した。
この実施例では、N−メチルジチオカルバミン酸ナトリウム(SNMDTC)、並びに、それぞれ90:10及び80:20の比率でのSNMDTC+ジメチルジチオカルバミン酸カリウム(PDMDTC)の混合物について、1000ppm及び10,000ppmの濃度で(製品として)、酸生成細菌及び硫酸塩還元細菌に対する殺生物効果について調べた。
この実施例の目的は、摩擦低減剤と本発明のものに含まれる様々な殺生物剤とを用いた適合性試験を行うことであった。「FR−516」と称される摩擦低減剤を、BSN−85(PDMDTC)、BSN−1020A(二硫化炭素から製造したSNMDTC)、BSN−1020B(高pHのSNMDTC)、BSN−1058(3,5−ジメチルテトラヒドロ−1,3,5,2H−チアジアジン−2−チオンの中間工程を経由して二硫化炭素から製造したSNMDTC)と称される殺生物剤最大1000ppmと、希釈NaOH(pH=12)と、水道水との存在下、0.5gptの添加量で、フローループ試験装置で評価した。試験試料には、特定の添加量で摩擦低減剤に対して何らかの悪影響が存在するかどうかを決定するために、試験試料を3回に分けて合計1000ppmまでフリクションループに添加した。フローループ分析は、180,000〜190,000の範囲のレイノルズ数で、直径1/2インチの管を24ガロン毎分で通して行った。試験は水道水中で行われた。
実施例5で述べられたのと同じ一般的試験手順に従って、FR−516、ベースラインに100ppm添加、3分の時点で400ppm添加、及び5分の時点で500ppm添加、を用いて試験することによって、SNMDCとPDMDTCとの組み合わせを、これらの摩擦低減に対する影響について評価した。
Claims (20)
- (a)微生物の抑制に有効な量の(i)モノメチルジチオカルバメート(MMDTC)若しくはMMDTCの塩及び(ii)ジメチルジチオカルバメート(DMDTC)若しくはDMDTCの塩を、含む組合せ、並びに(b)ポリマー、を含む組成物。
- 前記ポリマーが、ガラクトマンナンポリマー、誘導体化ガラクトマンナンポリマー、デンプン、キサンタンガム、ヒドロキシセルロース、ヒドロキシアルキルセルロース、ポリグリコサン、カルボキシアルキルエーテル、ポリビニルアルコールポリマー、ビニルアルコールと酢酸ビニルとのコポリマー、並びに、ビニルピロリドン、2−アクリルアミド−2−メチルプロパンスルホン酸、アクリル酸、及びアクリルアミドからなる群から選択される1種以上のモノマーを含む重合反応の生成物であるポリマー、からなる群の1種以上から選択される、請求項1に記載の組成物。
- 前記(i)及び/又は(ii)が、固体、エマルジョン、又は溶液として存在する、請求項1又は2に記載の組成物。
- 前記(i)及び/又は(ii)が、ナトリウム塩又はカリウム塩を含む、請求項1〜3のいずれか1項に記載の組成物。
- 前記(i)が、モノメチルジチオカルバミン酸ナトリウムを含む、請求項1〜4のいずれか1項に記載の組成物。
- 前記(i)が、モノメチルジチオカルバミン酸カリウムを含む、請求項1〜4のいずれか1項に記載の組成物。
- 前記(i)が、モノメチルジチオカルバミン酸のナトリウム塩とカリウム塩との混合物を含む、請求項1〜4のいずれか1項に記載の組成物。
- 前記(i)が、モノメチルジチオカルバミン酸ナトリウム、そして(ii)が、ジメチルジチオカルバミン酸カリウムを含む、
請求項1〜4のいずれか1項に記載の組成物。 - 前記(i)が、モノメチルジチオカルバミン酸カリウム、そして(ii)が、ジメチルジチオカルバミン酸ナトリウムを含む、請求項1〜4のいずれか1項に記載の組成物。
- 前記組合せが、モノメチルジチオカルバミン酸のナトリウム塩又はカリウム塩(MMDTC)と、ジメチルジチオカルバミン酸のナトリウム塩又はカリウム塩(DMDTC)とを10:90〜95:5の重量比で含む、請求項1〜4のいずれか1項に記載の組成物。
- 前記組合せがモノメチルジチオカルバミン酸のナトリウム塩又はカリウム塩(MMDTC)と、ジメチルジチオカルバミン酸のナトリウム塩又はカリウム塩(DMDTC)とを70:30〜30:70の重量比で含む、請求項1〜4のいずれか1項に記載の組成物。
- 前記(i)及び(ii)が、細菌の増殖の抑制に相乗的に有効な量で存在する、請求項1〜11のいずれか1項に記載の組成物。
- 前記MMDTC及び/又はDMDTCよりも早く作用する追加的な殺微生物剤を更に含有する、請求項1〜12のいずれか1項に記載の組成物。
- 前記組成物が、油、塩、架橋剤、追加的なポリマー、腐食防止剤及び可溶化剤、pH調整剤、金属キレート剤、金属錯化剤、酸化防止剤、湿潤剤、ポリマー安定化剤、粘土安定化剤、スケール防止剤及び可溶化剤、ワックス防止剤及び可溶化剤、アスファルテン析出防止剤、流水抑制剤、砂固結剤、プロパント、浸透性改良剤、粘弾性流体、気体、発泡剤、並びにこれらの混合物からなる群から選択される1種以上の添加剤を更に含有する、請求項1〜13のいずれか1項に記載の組成物。
- 微生物抑制に有効な量の、(i)モノメチルジチオカルバメート(MMDTC)若しくはその塩及び(ii)ジメチルジチオカルバメート(DMDTC)若しくはその塩を、
又は、
微生物抑制に有効な量の、(i)モノメチルジチオカルバミン酸ナトリウム及び(ii)ジメチルジチオカルバミン酸カリウムを、
又は
微生物の増殖の抑制に相乗的に有効な量の、(i)モノメチルジチオカルバメート(MMDTC)若しくはその塩及び(ii)ジメチルジチオカルバメート(DMDTC)若しくはその塩を、
又は、
微生物の増殖の抑制に相乗的に有効な量の、(i)モノメチルジチオカルバミン酸ナトリウム及び(ii)ジメチルジチオカルバミン酸カリウムを、
抑制すべき細菌と接触させることを含む、細菌汚染の抑制方法。 - a)1種以上の固体、液体、又は気体状の炭化水素を含む、地質学的に産出される物質;b)炭化水素鉱床;c)石油鉱床;d)炭化水素若しくは石油産出層;e)炭化水素若しくは石油含有産出物;f)掘削、水圧破砕、生産、刺激、及び/又は廃棄の作業を行う炭化水素若しくは石油採掘現場;g)パイプライン、モバイルタンカー搭載設備、貯蔵タンクを含む炭化水素若しくは石油の輸送設備又は貯蔵装置;及び/又は、h)精製設備、精製産出物、精製処理、精製装置、若しくはこれらの組み合わせ、並びに掘削、刺激、生産、水圧破砕、及び廃棄に関連する水及び流体;を含む注入領域に前記(i)及び(ii)を注入することを更に含む、請求項15に記載の方法。
- 目的の微生物を低減する、不活性化する、破壊する、又は取り除くのに十分な量で、(ア)補給水若しくは流体、(イ)リサイクル水若しくは流体、(ウ)フローバック水若しくは流体、(エ)注入水若しくは流体、(オ)随伴水若しくは流体、又は(カ)油田において、掘削、刺激による呼び水、水圧破砕、原油生産、及び/又は原油生産物の廃棄作業においてみられる若しくは用いられる他の水若しくは流体、を含む注入領域に、前記(i)及び(ii)を注入することを含む、請求項15に記載の方法。
- 前記MMDTC及び/又はDMDTCと比較して相対的に速効性の殺生物剤若しくはグルタルアレデヒドを注入領域に注入し、その後前記(i)及び(ii)を注入することを更に含む、請求項16に記載の方法。
- 微生物抑制に有効な量の、(a)モノメチルジチオカルバメート(MMDTC)若しくはその塩と、(b)ジメチルジチオカルバメート(DMDTC)若しくはその塩、
又は
微生物抑制に有効な量の、(a)モノメチルジチオカルバメート(MMDTC)若しくはその塩と、(b)ジメチルジチオカルバメート(DMDTC)若しくはその塩と(c)ポリマー、
を含む組成物。 - (a)対(b)の重量比が80:20〜20:80であり、又は
(a)対(b)の重量比が10:90〜95:5であり、
(a)と(b)が細菌の抑制に相乗的に作用する、請求項19に記載の組成物。
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| PCT/US2015/042793 WO2016019092A1 (en) | 2014-08-01 | 2015-07-30 | Microbiocides and uses thereof |
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| EA024652B1 (ru) | 2012-01-06 | 2016-10-31 | Кемира Ойй | Биоцидная система и способы ее применения |
| WO2014051979A1 (en) * | 2012-09-25 | 2014-04-03 | Buckman Laboratories International, Inc. | Method and system for the enhancement of the biocidal efficacy of|monoalkyldithiocarbamate salts |
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2015
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- 2015-07-30 WO PCT/US2015/042793 patent/WO2016019092A1/en not_active Ceased
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- 2015-07-30 SG SG11201700191PA patent/SG11201700191PA/en unknown
- 2015-07-30 US US14/813,253 patent/US9504252B2/en active Active
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|---|---|
| ES2705019T3 (es) | 2019-03-21 |
| AU2015296519A1 (en) | 2017-02-09 |
| SG11201700191PA (en) | 2017-02-27 |
| CA2956449A1 (en) | 2016-02-04 |
| US9504252B2 (en) | 2016-11-29 |
| PT3174950T (pt) | 2019-01-22 |
| CN106572660A (zh) | 2017-04-19 |
| US20160029634A1 (en) | 2016-02-04 |
| CN106572660B (zh) | 2020-12-22 |
| EP3174950A1 (en) | 2017-06-07 |
| AU2015296519B2 (en) | 2018-08-16 |
| MX2017001469A (es) | 2017-05-11 |
| EP3174950B1 (en) | 2018-12-05 |
| CA2956449C (en) | 2022-11-29 |
| WO2016019092A1 (en) | 2016-02-04 |
| BR112017001941B1 (pt) | 2022-08-30 |
| JP2017528438A (ja) | 2017-09-28 |
| BR112017001941A2 (pt) | 2017-11-28 |
| MX368322B (es) | 2019-09-26 |
| NZ728785A (en) | 2020-07-31 |
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