JP5452587B2 - 震探ホライゾンスケルトン化 - Google Patents
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- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
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Description
本願は、2008年5月22日に出願された米国特許仮出願第61/128,547号、2008年6月9日に出願された米国特許仮出願第61/131,484号及び2009年4月14日出願された米国特許仮出願第61/169,122号の権益主張出願である。
相対順序の差は、シナリオの不確実性を推定するために用いられる。
1.岩層がそれ自体オーバーラップしていない。層がそれ自体オーバーラップしている場合、この層は、それ自体及びこれら相互間にサンドイッチされている岩よりも若いと同時に古い。この記載内容は、図3Aに示されている自己オーバーラップなしの条件と呼ばれる場合がある。
2.2つの層は、これらの堆積関係を逆にすることができない。一方の層は、或る1つの場所では別の層の上に位置することはできず、別の場所ではこの下に位置することができない。その他の点に関しては、一方の層は、他方の層よりも古く且つ若い。この表現内容は、図3Bに示されているローカル一貫性の条件と呼ばれる場合がある。
3.組をなす層は、推移性を保たなければならない。上方/下方又は若い/古いは、推移関係の例である。第1の層が第2の層の上方に位置し、第2の層が第3の層の上方に位置している場合、第3の層は、第1の層の下方に位置しなければならない。その他の点に関しては、第1の層は、第3の層よりも古く且つ若い。この説明内容は、図3Cに示されているグローバル一貫性の条件と呼ばれる場合がある。
ステージ1(ステップ41)
ステージ3(ステップ43)
ケスケス(Keskes)に付与された米国特許第5,940,777号明細書(発明の名称:Automatic Seismic Pattern Recognition Method)は、トレーニングデータ編により特定された所与の数の震探パターンを認識する自動震探パターン認識法を提供している。
Claims (20)
- 地震探査で収集した震探データボリュームを、視覚表示されたときに地震波を反射することによりデータを生じさせる地下反射面の表示を示す対応のデータボリュームに変換するコンピュータ実施方法において、
(a)前記データボリュームから震探反射波をピックし、前記ピックから初期サーフェスを作成するステップと、
(b)主としてトポロジー的に一貫性のある小さな部分(「パッチ」)に分解するステップと、
(c)隣接のパッチをトポロジー的に一貫性のある仕方でマージし、震探データボリュームからトポロジー的に一貫性のある反射波に基づくサーフェスを抽出するステップと、 (d)前記抽出したサーフェスを目視検査若しくは解釈のために表示し又はこれらサーフェスのディジタル表示をコンピュータメモリ又はデータ格納装置にセーブするステップと、を備えている、
ことを特徴とする方法。 - 前記トポロジー的に一貫性のある反射波に基づくサーフェスを用いて炭化水素累積のポテンシャルを予測し又は分析するステップを更に有する、
請求項1記載の方法。 - 「トポロジー的に一貫性のある」という表現は、サーフェスが(i)自己オーバーラップなし、(ii)ローカル一貫性あり、及び(iii)グローバル一貫性ありのうちの少なくとも1つを満足させることを検証することから成る、
請求項1記載の方法。 - 前記震探反射波は、前記震探データボリューム中の隣接のトレース相互間の反射事象を相関させることによりピックされる、
請求項1記載の方法。 - 前記ピック操作は、コンピュータを用いて自動化される、
請求項4記載の方法。 - サーフェスをパッチに分解するステップは、初期サーフェスを線に収縮させるステップと、前記線中の継ぎ目を除去してより個々の線を形成するステップと、個々の線を単一ボクセル点(特性点)に収縮させるステップと、隣接のボクセルを追加してボクセルのパッチを形成することにより前記特徴点を前記初期サーフェスに沿って伝播させるステップとから成る、
請求項1記載の方法。 - 各特徴点には、互いに異なるラベルがラベル付けされ、前記ラベルは、前記特徴点の周りに形成された前記パッチに貼付され、互いに異なるパッチが伝播によって拡張されているときに互いに異なるパッチを常時監視する手段が提供される、
請求項6記載の方法。 - 制御型マーチングを用いて点を初期サーフェスに沿って伝播させる、
請求項6記載の方法。 - 線への初期サーフェスの前記収縮は、個々のボクセルの連続線が結果として得られるまで前記サーフェスの周囲からボクセルの厚さ1つ分の層を連続的に除去するステップから成る、
請求項6記載の方法 - 線から接合ボクセルを削除して線を形成し、その後、線を点に収縮させるステップを更に有する、
請求項6記載の方法。 - トポロジー的一貫性は、点の伝播中、強いられる、
請求項6記載の方法。 - 隣接のパッチをトポロジー的に一貫性のある仕方でマージするステップは、パッチについてオーバーラップ及び近傍表を作成し、前記オーバーラップ及び近傍表をソートすることによりマージ対候補に関する順序を生成し、前記オーバーラップ及び近傍表を用いてトポロジー的一貫性があるかどうかについて候補マージをチェックし、トポロジー的に一貫性のあるマージャを受け入れることにより実施される、
請求項1記載の方法。 - 前記近傍表の前記ソート順序は、前記隣接パッチの幾何学的形状又はこれら隣接パッチ相互間の幾何学的形状の差に基づき或いは前記パッチにコロケートされた震探データから抽出される1つ又は2つ以上の属性の統計学的特性又はこれら属性相互間の差に基づいている、
請求項12記載の方法。 - 前記トポロジー的に一貫性のある反射波に基づくサーフェスを空間的に平坦化して、前記トポロジー的に一貫性のある反射波に基づくサーフェスを用いると共に前記平坦化されたサーフェスを用いて堆積シーケンスを表す順序にして炭化水素累積のポテンシャルを予測し又は分析するステップを更に有する、
請求項1記載の方法。 - 前記トポロジー的に一貫性のある反射波に基づくサーフェスが存在する関連の震探データを平坦化するステップを更に有する、
請求項14記載の方法。 - 前記震探データ平坦化ステップは、前記震探データの非線形伸張又はカット・アンド・ペースト法によって実施される、
請求項15記載の方法。 - 前記トポロジー的に一貫性のある反射波に基づくサーフェスの堆積順序又は階層を示す視覚表示を作成するステップを更に有する、
請求項1記載の方法。 - 前記視覚表示は、ツリーであり、前記方法は、前記ツリーを用いて可視化のために1つ又は2つ以上のサーフェスを選択するステップを更に有する、
請求項17記載の方法。 - 前記パッチを用いて前記震探データボリュームを、共通インターバル内で堆積した地質学的ユニットを表す三次元地質体又はサーフェス間パッケージにセグメント化し、前記三次元地質体又はサーフェス間パッケージを用いて炭化水素ポテンシャルがあるかどうかについて分析するステップと、を更に有する、
請求項1記載の方法。 - 前記トポロジー的に一貫性のある反射波に基づくサーフェスのエッジ及び末端点の場所及び特性を分析し、この分析結果を用いて炭化水素累積のポテンシャルを予測し又は分析するのを助けるステップを更に有する、
請求項2記載の方法。
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US12854708P | 2008-05-22 | 2008-05-22 | |
US61/128,547 | 2008-05-22 | ||
US13148408P | 2008-06-09 | 2008-06-09 | |
US61/131,484 | 2008-06-09 | ||
US16912209P | 2009-04-14 | 2009-04-14 | |
US61/169,122 | 2009-04-14 | ||
PCT/US2009/041671 WO2009142872A1 (en) | 2008-05-22 | 2009-04-24 | Seismic horizon skeletonization |
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JP2011521260A JP2011521260A (ja) | 2011-07-21 |
JP2011521260A5 JP2011521260A5 (ja) | 2012-06-14 |
JP5452587B2 true JP5452587B2 (ja) | 2014-03-26 |
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US (3) | US20110048731A1 (ja) |
EP (1) | EP2281212B1 (ja) |
JP (1) | JP5452587B2 (ja) |
CN (2) | CN104614766B (ja) |
AU (1) | AU2009249473B2 (ja) |
BR (1) | BRPI0910752A2 (ja) |
CA (1) | CA2723951C (ja) |
EA (1) | EA026356B1 (ja) |
MY (1) | MY164574A (ja) |
NZ (1) | NZ588826A (ja) |
WO (1) | WO2009142872A1 (ja) |
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2009
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- 2009-04-24 WO PCT/US2009/041671 patent/WO2009142872A1/en active Application Filing
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MY164574A (en) | 2018-01-15 |
CA2723951A1 (en) | 2009-11-26 |
JP2011521260A (ja) | 2011-07-21 |
WO2009142872A1 (en) | 2009-11-26 |
EA201071349A1 (ru) | 2011-06-30 |
CN102066980B (zh) | 2015-02-25 |
EP2281212B1 (en) | 2019-02-27 |
US8447524B2 (en) | 2013-05-21 |
CN104614766A (zh) | 2015-05-13 |
US20110048731A1 (en) | 2011-03-03 |
NZ588826A (en) | 2012-10-26 |
EA026356B1 (ru) | 2017-03-31 |
CA2723951C (en) | 2016-12-06 |
EP2281212A4 (en) | 2016-10-26 |
CN102066980A (zh) | 2011-05-18 |
US20100161232A1 (en) | 2010-06-24 |
EP2281212A1 (en) | 2011-02-09 |
BRPI0910752A2 (pt) | 2015-09-29 |
AU2009249473B2 (en) | 2014-01-16 |
US20100149917A1 (en) | 2010-06-17 |
CN104614766B (zh) | 2017-10-13 |
AU2009249473A1 (en) | 2009-11-26 |
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