JP2010508517A - Cg×cgを用いた炭化水素サンプル中の汚染の高精度評価 - Google Patents
Cg×cgを用いた炭化水素サンプル中の汚染の高精度評価 Download PDFInfo
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Abstract
Description
弱いピークを明視化するために、プロットされたダイナミックレンジは、サンプルの全ダイナミックレンジより小さく、最も高いピークの頂部は「切り落とされる」。これにより、大きなピークの中心近くの白色領域で囲まれた灰色領域を生じる。
Claims (25)
- 油ベース泥水の濾過水による炭化水素サンプルの汚染を見積もる方法であって、
a)前記油ベース泥水の濾過水により汚染された前記炭化水素サンプルを得るステップと、
b)前記汚染された炭化水素サンプルを、二次元ガスクロマトグラフィー(CG×CG)を用いて分析するステップと、
c)前記汚染された炭化水素サンプル中の前記油ベース泥水の濾過水の1つ以上の固有の成分又はトレーサーを同定するステップと、
d)前記1つ以上の固有の成分又はトレーサーのピーク体積を加算し、そして汚染されていない前記炭化水素サンプルのピーク体積に対して比をとるステップと、
を含むことを特徴とする方法。 - 前記油ベース泥水の濾過水は、非合成油ベース泥水の濾過水又は合成油ベース泥水の濾過水から成る群から選択されることを特徴とする請求項1に記載の方法。
- 前記1つ以上の固有の成分のうち、少なくとも1つの固有の成分は、合成油ベース成分に由来することを特徴とする請求項1に記載の方法。
- 前記1つ以上のトレーサーのうち、少なくとも1つのトレーサーは、前記非合成油ベース泥水の濾過水に添加されていることを特徴とする請求項2に記載の方法。
- 前記油ベース泥水の濾過水による炭化水素サンプル中の汚染は、約0.1%以上であることを特徴とする請求項1に記載の方法。
- 前記油ベース泥水の濾過水による炭化水素サンプル中の汚染は、約0.1%〜約10%であることを特徴とする請求項1に記載の方法。
- 前記二次元ガスクロマトグラフィー(CG×CG)は、一次元ガスクロマトグラフィーと比べて、前記1つ以上の固有の成分及びトレーサーの同定において大きな分解能力を有することを特徴とする請求項1に記載の方法。
- 少なくとも二次元以上の分離を含むことを特徴とする請求項1に記載の方法。
- 前記CG×CGは、無極性相を用いた一次元目の分離と、極性相を用いた2次元目の分離とを含んでいることを特徴とする請求項1に記載の方法。
- 前記無極性相は、揮発度の違いにより石油の成分を分離し、前記極性相は、極性の違いにより一次元目の共溶出物を分離することを特徴とする請求項9に記載の方法。
- 前記無極性相は、ポリジメチルシロキサンカラムであり、前記極性相は、50%フェニル基置換ポリジメチルシロキサンカラムであることを特徴とする請求項10に記載の方法。
- 前記油ベース泥水の濾過水中の前記固有の成分又は前記トレーサーは、イソオレフィン、直鎖状α−オレフィン、ポリ−α−オレフィン又はエステルから成る群から選択されることを特徴とする請求項1に記載の方法。
- 前記イソオレフィンは、C16〜C20のアルケンであることを特徴とする請求項12に記載の方法。
- 掘削用流体による炭化水素サンプルの汚染を分離し分析する方法であって、
a)前記掘削用流体により汚染された前記炭化水素サンプルを得るステップと、
b)前記汚染された炭化水素サンプルを、二次元ガスクロマトグラフィー(CG×CG)を用いて分析するステップであって、前記汚染された炭化水素サンプルが、2つの異なる固定相の選択性を受ける、分析するステップと、
c)前記汚染された炭化水素サンプル中の前記掘削用流体の1つ以上の固有の成分又はトレーサーを同定するステップと、
d)前記1つ以上の固有の成分又はトレーサーのピーク体積を加算し、そして汚染されていない前記炭化水素サンプルのピーク体積に対して比をとるステップと、
を含むことを特徴とする方法。 - 前記掘削用流体は、非合成油ベース泥水の濾過水又は合成油ベース泥水の濾過水から成る群から選択されることを特徴とする請求項14に記載の方法。
- 前記1つ以上の固有の成分は、前記合成油ベース泥水の濾過水に由来することを特徴とする請求項15に記載の方法。
- 前記方法が、前記非合成油ベース泥水の濾過水に添加された前記1つ以上のトレーサーのうち、少なくとも1つのトレーサーを含んでいることを特徴とする請求項15に記載の方法。
- 2つの異なる固定相の選択性は、無極性相を用いた一次元目の分離と、極性相を用いた2次元目の分離とを含んでいることを特徴とする請求項14に記載の方法。
- 前記無極性相は、揮発度の違いにより石油の成分を分離し、前記極性相は、極性の違いにより一次元目の共溶出物を分離することを特徴とする請求項18に記載の方法。
- 前記無極性相は、ポリジメチルシロキサンカラムであり、前記極性相は、50%フェニル基置換ポリジメチルシロキサンカラムであることを特徴とする請求項19に記載の方法。
- 前記掘削用流体による炭化水素サンプル中の汚染は、約0.1%以上であることを特徴とする請求項14に記載の方法。
- 前記掘削用流体中の前記固有の成分又は前記トレーサーは、イソオレフィン、直鎖状α−オレフィン、ポリ−α−オレフィン又はエステルから成る群から選択されることを特徴とする請求項14に記載の方法。
- 前記イソオレフィンは、C16〜C20のアルケンであることを特徴とする請求項22に記載の方法。
- 原油による油ベース泥水の濾過水サンプルの汚染を見積もる方法であって、
a)前記原油により汚染された前記油ベース泥水の濾過水サンプルを得るステップと、
b)前記油ベース泥水の濾過水サンプルを、二次元ガスクロマトグラフィー(CG×CG)を用いて分析するステップと
c)前記汚染された油ベース泥水の濾過水サンプル中の前記原油の1つ以上の固有の成分又はトレーサーを同定するステップと、
d)前記1つ以上の固有の成分又はトレーサーのピーク体積を加算し、そして前記油ベース泥水の濾過水サンプルのピーク体積に対して比をとるステップと、
を含むことを特徴とする方法。 - 前記CG×CGは、無極性相を用いた一次元目の分離と、極性相を用いた2次元目の分離とを含むことを特徴とする請求項24に記載の方法。
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CA2667523A1 (en) | 2008-05-02 |
EP2084525B1 (en) | 2010-04-28 |
US7805979B2 (en) | 2010-10-05 |
ATE466279T1 (de) | 2010-05-15 |
CA2667523C (en) | 2013-04-30 |
JP4981142B2 (ja) | 2012-07-18 |
CN101680862A (zh) | 2010-03-24 |
DE602007006229D1 (de) | 2010-06-10 |
WO2008051900A2 (en) | 2008-05-02 |
EP2084525A2 (en) | 2009-08-05 |
WO2008051900A3 (en) | 2008-06-19 |
US20080105032A1 (en) | 2008-05-08 |
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