JP6894040B2 - 炭化水素層処理ミセル溶液 - Google Patents
炭化水素層処理ミセル溶液 Download PDFInfo
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- JP6894040B2 JP6894040B2 JP2020504272A JP2020504272A JP6894040B2 JP 6894040 B2 JP6894040 B2 JP 6894040B2 JP 2020504272 A JP2020504272 A JP 2020504272A JP 2020504272 A JP2020504272 A JP 2020504272A JP 6894040 B2 JP6894040 B2 JP 6894040B2
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- Prior art keywords
- colloidal silica
- hydrocarbon
- water
- fluid
- hydrophilic
- Prior art date
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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
- C09K8/03—Specific additives for general use in well-drilling compositions
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Description
本特許出願は、米国仮特許出願第62/482429号、“Brine Resistant Silica Sol”(2017年4月6日出願)、米国仮特許出願第62/482470号、“Hydrocarbon Treatment Fluid”(2017年4月6日出願)、及び米国仮特許出願第62/482461号、“Surface Functionalized Colloidal Silica with Enhanced Stability”(2017年4月6日出願)の優先権を主張するものであり、これらの各々の全体の内容は、参照により本明細書に援用される。
本発明は、塩水中での安定性が優れている表面処理水性コロイダルシリカゾルを含む炭化水素層処理ミセル溶液に関する。
ミセルは、典型的には、液体媒体中に分散する界面活性剤分子の超分子集合体として定義され、この界面活性剤分子は、界面活性剤分子のある部分が親水性(水を好み極性)とみなされ、分子の別の部分が疎水性(親油性、脂肪または油を好む)とみなされる二重構造から構成されている。
「ミセル流体」に対し、マイクロエマルションは、透明であり、熱力学的に安定性であり、等方性である、油相、水相、及び界面活性剤(界面活性助剤または共溶媒と組み合わせることが多い)の液体混合物として説明される。水相は、塩(複数可)及び/または他の成分を含んでもよく、油相は、種々の炭化水素及びオレフィンの複合的混合物であってもよい。
(A)直接タイプ(水中油分散型、o/w)、
(B)逆タイプ(油中水分散型、w/o)、及び
(C)両連続タイプ。
ミセル溶液流体が、
a)水と、
b)非テルペン油ベース部分と、
c)塩水耐性水性コロイダルシリカゾルと、
d)任意選択で、テルペンまたはテルペノイドと
を含み、
塩水耐性水性コロイダルシリカゾルが、
(i)親水性オルガノシラン、
(ii)親水性及び疎水性のオルガノシランの混合物、及び
(iii)ポリシロキサンオリゴマー
からなる群より選択される、少なくとも1つの部分で官能化された表面を有するシリカ粒子を有し、
塩水耐性水性コロイダルシリカゾルが、以下の3つの塩水耐性試験:API塩水目視(Brine Visual)、24時間海水目視(Seawater Visual)、及びAPI濁度計のうちの少なくとも2つに合格し、
テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも15:1である、方法である。
ミセル溶液流体が、
a)水と、
b)非テルペン油ベース部分と、
c)塩水耐性水性コロイダルシリカゾルと、
d)任意選択で、テルペンまたはテルペノイドと
を含み、
塩水耐性水性コロイダルシリカゾルが、
(i)親水性オルガノシラン、
(ii)親水性及び疎水性のオルガノシランの混合物、または
(iii)ポリシロキサンオリゴマー
からなる群より選択される、少なくとも1つの部分で官能化された表面を有するシリカ粒子を有し、
塩水耐性水性コロイダルシリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計のうちの少なくとも2つに合格し、
テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも15:1である、炭化水素層処理ミセル溶液流体である。
a)1つ以上の界面活性剤、
b)1つ以上のアルコール、
c)1つ以上のアルコール共溶媒、及び
d)水
を含む。
成分Aは、グリシドキシプロピルトリメトキシシランであり、成分Bは、メタクリルオキシプロピルトリメトキシシラン、イソブチルトリメトキシシラン、ビニルトリメトキシシラン、トリメトキシ[2−(7−オキサビシクロ[4.1.0]ヘプタ−3−イル)エチルトリメトキシシラン、及びヘキサメチルジシロキサンのうちの1つ以上からなる群より選択される。
(a)約20.0wt.%未満のd−リモネンを含むテルペンベース油相と、
(b)アニオン性界面活性剤、カチオン性界面活性剤、非イオン性界面活性剤、及び両性界面活性剤からなる群より選択される、1つ以上の界面活性剤と、
(c)C1〜C6アルコールからなる群から選択されるアルコールと、
(d)アルコール共溶媒と、
(e)流体中の水の総量:テルペンの量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるような、十分な量の水と、
(f)塩水耐性表面官能化コロイダルシリカと
を含む。
(a)テルペノイドベース油相と、
(b)アニオン性界面活性剤、カチオン性界面活性剤、非イオン性界面活性剤、及び両性界面活性剤からなる群より選択される、1つ以上の界面活性剤と、
(c)C1〜C6アルコールからなる群から選択されるアルコールと、
(d)アルコール共溶媒と、
(e)流体中の水の総量:テルペンの量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるような、十分な量の水と、
(f)塩水耐性表面官能化コロイダルシリカと
を含む。
a)1つ以上の界面活性剤と、
b)1つ以上のアルコールと、
c)1つ以上のアルコール共溶媒と、
d)流体中の水の総量:テルペンの量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるような、十分な量の水と
を含む。
成分Aは、グリシドキシプロピルトリメトキシシランであり、成分Bは、メタクリルオキシプロピルトリメトキシシラン、イソブチルトリメトキシシラン、ビニルトリメトキシシラン、トリメトキシ[2−(7−オキサビシクロ[4.1.0]ヘプタ−3−イル)エチルトリメトキシシラン、及びヘキサメチルジシロキサンのうちの1つ以上からなる群より選択される。
(a)約20.0wt.%未満のd−リモネンを含むテルペンベース油相と、
(b)アニオン性界面活性剤、カチオン性界面活性剤、非イオン性界面活性剤、及び両性界面活性剤からなる群より選択される、1つ以上の界面活性剤と、
(c)C1〜C6アルコールからなる群から選択されるアルコールと、
(d)アルコール共溶媒と、
(e)流体中の水の総量:テルペンの量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるような、十分な量の水と、
(f)親水性オルガノシランまたは親水性及び疎水性のオルガノシランの混合物のいずれかで官能化された塩水耐性コロイダルシリカ表面と
を含む。
(a)テルペノイドベース油相と、
(b)アニオン性界面活性剤、カチオン性界面活性剤、非イオン性界面活性剤、及び両性界面活性剤からなる群より選択される、1つ以上の界面活性剤と、
(c)C1〜C6アルコールからなる群から選択されるアルコールと、
(d)アルコール共溶媒と、
(e)流体中の水の総量:テルペンの量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるような、十分な量の水と、
(f)親水性オルガノシランまたは親水性及び疎水性のオルガノシランの混合物のいずれかで官能化された塩水耐性コロイダルシリカ表面と
を含む。
[本発明1001]
炭化水素含有地下層を処理する方法であって、ミセル溶液流体を前記炭化水素含有地下層に導入することを含み、
前記ミセル溶液流体が、
(a)水と、
(b)非テルペン油ベース部分と、
(c)塩水耐性水性コロイダルシリカゾルと、
(d)任意選択で、テルペンまたはテルペノイドと
を含み、
前記塩水耐性水性コロイダルシリカゾルが、
(i)親水性オルガノシラン、
(ii)親水性及び疎水性のオルガノシランの混合物、及び
(iii)ポリシロキサンオリゴマー
からなる群より選択される、少なくとも1つの部分で官能化された表面を有するシリカ粒子を有し、
前記塩水耐性水性コロイダルシリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計のうちの少なくとも2つに合格し、
テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも約15:1である、前記方法。
[本発明1002]
テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも約30:1である、本発明1001の方法。
[本発明1003]
前記塩水耐性シリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計の全てに合格する、本発明1001の方法。
[本発明1004]
前記親水性オルガノシランモノマー単位が、約40mN/m〜約50mN/mの範囲の臨界表面張力を示す、本発明1001の方法。
[本発明1005]
前記疎水性オルガノシランモノマー単位が、約15mN/m〜約39.5mN/mの範囲の臨界表面張力を示す、本発明1001の方法。
[本発明1006]
前記親水性オルガノシランモノマー単位がグリシジル基を含む、本発明1001の方法。
[本発明1007]
炭化水素層処理ミセル溶液流体であって、
前記ミセル溶液流体が、
(a)水と、
(b)非テルペン油ベース部分と、
(c)塩水耐性水性コロイダルシリカゾルと、
(d)任意選択で、テルペンまたはテルペノイドと
を含み、
前記塩水耐性水性コロイダルシリカゾルが、
(i)親水性オルガノシラン、
(ii)親水性及び疎水性のオルガノシランの混合物、または
(iii)ポリシロキサンオリゴマー
からなる群より選択される、少なくとも1つの部分で官能化された表面を有するシリカ粒子を有し、
前記塩水耐性水性コロイダルシリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計のうちの少なくとも2つに合格し、
テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも約15:1である、前記炭化水素層処理ミセル溶液流体。
[本発明1008]
テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも約30:1である、本発明1007の炭化水素層処理ミセル溶液流体。
[本発明1009]
前記塩水耐性シリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計の全てに合格する、本発明1007の炭化水素層処理ミセル溶液流体。
[本発明1010]
前記親水性オルガノシランモノマー単位が、約40mN/m〜約50mN/mの範囲の臨界表面張力を示し、前記疎水性オルガノシランモノマー単位が、約15mN/m〜約39.5mN/mの範囲の臨界表面張力を示す、本発明1006の炭化水素層処理ミセル溶液流体。
以下の定義は、当業者が本発明の詳細な説明を理解する一助とするために示されている。
1.シリカ以外の無機酸化物の共有結合的付着。
2.小分子、オリゴマー、またはポリマー有機材料の非共有結合的付着(PEG処理、アミンまたはポリアミン、スルフィドなど)。
3.オリゴマー及びポリマー種を含めた有機分子の共有結合的付着:
a.オルガノシラン/チタネート/ジルコネート/ゲルマネートとの反応。
b.オルガノシラン/チタネート/ジルコネート/ゲルマネートオリゴマーの形成、及びその後のこれらのオリゴマーとコロイダルシリカの表面との反応。
c.シラン化、及びその後のコロイダルシリカ表面から開始するオリゴマー/樹状/ハイパーブランチ/ポリマー種の反応後形成。
d.オリゴマー/樹状/ハイパーブランチ/ポリマーシラン/ジルコネート/チタネートの形成、及びその後のSiO2表面に対する反応。
1.比較的疎水性のオルガノシランは、水性コロイダルシリカの表面に対し有効に溶解及び反応するほど十分に水性系に溶解性ではない。
2.比較的疎水性のオルガノシランは、水性系に溶解可能であるが、コロイダルシリカ表面への反応後に、コロイダルシリカ表面を水性系において安定性でなくなるほど疎水性にする。
*出典 http://www.chemspider.com/Chemical−Structure.79049.html
a)1つ以上の界面活性剤と、
b)1つ以上のアルコールと、
c)1つ以上のアルコール共溶媒と、
d)水(流体中の水の総量:テルペンまたはテルペノイドの総量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるように選択される量)と
を含む。
成分Aは、グリシドキシプロピルトリメトキシシランであり、成分Bは、メタクリルオキシプロピルトリメトキシシラン、イソブチルトリメトキシシラン、ビニルトリメトキシシラン、トリメトキシ[2−(7−オキサビシクロ[4.1.0]ヘプタ−3−イル)エチルトリメトキシシラン、及びヘキサメチルジシロキサンのうちの1つ以上からなる群より選択される。
(a)約20wt.%未満のd−リモネンを含むテルペンベース油相と、
(b)アルキルオレフィンスルホネート界面活性剤からなる群より選択されるアニオン性界面活性剤と、
(c)C1〜C6アルコールからなる群から選択されるアルコールと、
(d)アルコール共溶媒と、
(e)水(流体中の水の総量:テルペンまたはテルペノイドの総量の比が少なくとも約15:1、好ましくは少なくとも約30:1であるように選択される量)と、
(f)塩水耐性表面官能化コロイダルシリカと
を含む。
(a)テルペノイドベース油相と、
(b)アルキルオレフィンスルホネート界面活性剤からなる群より選択されるアニオン性界面活性剤と、
(c)C1〜C6アルコールからなる群から選択されるアルコールと、
(d)アルコール共溶媒と、
(e)水と、
(f)塩水耐性表面官能化コロイダルシリカと
を含む。
E11126は、ST−O25(Nissan Chemical America Corp.から入手可能)及びGPTMS(グリシドキシプロピルトリメトキシシラン)から作製された塩水耐性シリカゾルである。
ポリシロキサンオリゴマープレミックスを、10部のグリシドキシプロピルトリメトキシシラン、5部のビニルトリメトキシシラン、及び1部のpH3の水(蒸留水及び10%のHClから、校正pHメーターを用いてpH3にして調製)から、これらの構成成分を混合し、混合物を室温にて30分の期間の間反応させることにより、調製した。59.28gのST−32Cアルカリ性コロイダルシリカ(Nissan Chemical America Corp.製)を250ガラス容器に添加し、さらに27.98gの蒸留水、及び9.85gのエチレングリコール共溶媒(Sigma Aldrich corp.)を添加することにより、コロイダルシリカの溶液を表面官能化用に調製する。この混合物を、磁気撹拌棒及び撹拌プレートを用いて磁気撹拌しながら50℃にする。
52.68gのST−O25酸性コロイダルシリカ(Nissan Chemical America Corp.から入手可能)を250ガラス容器に添加し、さらに36gの蒸留水、及び8gのエチレングリコール共溶媒(Sigma Aldrich corp.)を添加することにより、コロイダルシリカの溶液を表面官能化用に調製する。この混合物を、磁気撹拌棒及び撹拌プレートを用いて磁気撹拌しながら50℃にする。
試験用の塩水の調製:10wt%のAPI塩水溶液は、蒸留水に8wt%のNaCl(SigmaAldrich)及び2wt%のCaCl2(Sigma Aldrich)を溶解することにより調製する。人工海水は、蒸留水に6wt%のFritz Pro Aquatics RPM Reef Pro Mix(Fritz Industries,Inc.)を溶解することにより調製する。
Hele−Shawセル試験は、ミセル溶液1及び2が対照CNFと非常に類似する油回収率を有することを示した。
*複合ナノミセル溶液(CNF)は、油相としてのD−リモネンを界面活性剤、共溶媒、及び水と組み合わせて調製された市販のミセル溶液である。
*複合ナノミセル溶液(CNF)は、油相としてのD−リモネンを界面活性剤、共溶媒、及び水と組み合わせて調製された市販のミセル溶液である。
Claims (7)
- 炭化水素含有地下層を処理する方法であって、ミセル溶液流体を前記炭化水素含有地下層に導入することを含み、
前記ミセル溶液流体が、
(a)水と、
(b)ダイズ油脂肪酸メチル油ベース部分と、
(c)塩水耐性水性コロイダルシリカゾルと、
(d)テルペンまたはテルペノイドと
を含み、
前記塩水耐性水性コロイダルシリカゾルが、
(i)親水性オルガノシラン、
(ii)親水性及び疎水性のオルガノシランの混合物、及び
(iii)ポリシロキサンオリゴマーからなる群より選択される、少なくとも1つの部分で官能化された表面を有するシリカ粒子を有し、
該少なくとも1つの部分は、成分Aを含むか、または成分A及び成分Bを含み、該成分Aは、グリシドキシプロピルトリメトキシシランであり、該成分Bは、メタクリルオキシプロピルトリメトキシシラン、イソブチルトリメトキシシラン、ビニルトリメトキシシラン、トリメトキシ[2−(7−オキサビシクロ[4.1.0]ヘプタ−3−イル)エチルシラン、及びヘキサメチルジシロキサンのうちの1つ以上からなる群より選択され;
前記塩水耐性水性コロイダルシリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計のうちの少なくとも2つに合格し、
水の総量:テルペンまたはテルペノイドの比が少なくとも15:1である、前記方法。 - 水の総量:テルペンまたはテルペノイドの比が少なくとも30:1である、請求項1に記載の方法。
- 前記塩水耐性シリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計の全てに合格する、請求項1に記載の方法。
- 前記親水性オルガノシランモノマーがグリシジル基を含む、請求項1に記載の方法。
- 炭化水素層処理ミセル溶液流体であって、
前記ミセル溶液流体が、
(a)水と、
(b)ダイズ油脂肪酸メチル油ベース部分と、
(c)塩水耐性水性コロイダルシリカゾルと、
(d)テルペンまたはテルペノイドと
を含み、
前記塩水耐性水性コロイダルシリカゾルが、
(i)親水性オルガノシラン、
(ii)親水性及び疎水性のオルガノシランの混合物、または
(iii)ポリシロキサンオリゴマーからなる群より選択される、少なくとも1つの部分で官能化された表面を有するシリカ粒子を有し、
該少なくとも1つの部分は、成分Aを含むか、または成分A及び成分Bを含み、該成分Aは、グリシドキシプロピルトリメトキシシランであり、該成分Bは、メタクリルオキシプロピルトリメトキシシラン、イソブチルトリメトキシシラン、ビニルトリメトキシシラン、トリメトキシ[2−(7−オキサビシクロ[4.1.0]ヘプタ−3−イル)エチルシラン、及びヘキサメチルジシロキサンのうちの1つ以上からなる群より選択され;
前記塩水耐性水性コロイダルシリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計のうちの少なくとも2つに合格し、
水の総量:テルペンまたはテルペノイドの比が少なくとも15:1である、前記炭化水素層処理ミセル溶液流体。 - テルペンまたはテルペノイドが存在する場合に、水の総量:テルペンまたはテルペノイドの比が少なくとも30:1である、請求項5に記載の炭化水素層処理ミセル溶液流体。
- 前記塩水耐性シリカゾルが、以下の3つの塩水耐性試験:API塩水目視、24時間海水目視、及びAPI濁度計の全てに合格する、請求項5に記載の炭化水素層処理ミセル溶液流体。
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