JP2012509415A - 地表下の炭化水素地層の循環熱伝導流体の加熱 - Google Patents
地表下の炭化水素地層の循環熱伝導流体の加熱 Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- H—ELECTRICITY
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- E—FIXED CONSTRUCTIONS
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- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/03—Heating of hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
非限定的な実施例が以下に説明される。
循環システムにおいて溶解塩を使用して油頁岩地層を加熱するシミュレーションが実行された。坑井間隔は30フィート(約9.14m)であり、処理領域は、配管の実質的水平部分を囲む地層の5000フィート(約1.5km)であった。オーバーバーデンの厚さは、984フィート(約300m)であった。地層内の配管は、外部コンジット内に位置した内部コンジットを含む。処理領域に隣接して、外部コンジットは、4インチ(約10.2cm)のスケジュール80配管であり、溶解塩は、外部コンジットと内部コンジットとの間の環状領域を流れる。地層のオーバーバーデンを介して、溶解塩は内部コンジットを流れる。配管内の第1の流体切り換え装置は、内部コンジットから処理領域前の環状領域に流れを変更し、配管内の第2の流体切り換え装置は、環状領域から処理領域後の内部コンジットに流れを変更する。
Claims (22)
- 地表下地層を加熱する方法であって、
第1の位置でコンジットインコンジット加熱器の第1の通路に溶解塩を導入することと、
第2の位置に地層内のコンジットインコンジット加熱器を介して溶解塩を通し、コンジットインコンジット加熱器を介して溶解塩の通過の間に溶解塩から処理領域に熱が移動することと、
第1の位置から間隔をあけて配置された第2の位置でコンジットインコンジット加熱器から溶解塩を取り除くこととを含む、方法。 - 第1の通路に溶解塩を導入することが、コンジットインコンジット加熱器の内部コンジットに熱伝導流体を導入することを含む、請求項1に記載の方法。
- 第1の通路に溶解塩を導入することが、コンジットインコンジット加熱器の内部コンジットに溶解塩を導入し、流れ切り換え装置を介して溶解塩を通して、内部コンジットから内部コンジットと外部コンジットとの間の環状領域への流れを変更する、請求項1に記載の方法。
- 第2の流れ切り換え装置を介して溶解塩を通して、内部コンジットと外部コンジットとの間の環状領域からの流れを内部コンジットを介しての流れに変更することをさらに含む、請求項3に記載の方法。
- コンジットインコンジット加熱器の第2の通路に第2の熱伝導流体を導入して、第1の通路内の溶解塩の流動性を確実にすることをさらに含む、請求項1に記載の方法。
- 加熱器の温度が溶解塩の流動性を確実にするのに十分となった後、第2の通路内の第2の熱伝導流体の流れを除去または低減することをさらに含む、請求項1に記載の方法。
- 溶解塩を導入する前に、加熱器の第1の通路に第3の熱伝導流体を導入して第1の通路を予備加熱することと、
第1の通路から第3の熱伝導流体の少なくとも一部を取り除くこととをさらに含む、請求項6に記載の方法。 - 第3の熱伝導流体の少なくとも一部を取り除くことが、第3の熱伝導流体を溶解塩で置き換えることを含む、請求項7に記載の方法。
- 地表下地層を加熱する方法であって、
加熱器の第1の通路に第2の熱伝導流体を導入して、加熱器を予備加熱することと、
加熱器の第2の通路に第1の熱伝導流体を導入することと、
加熱器の温度が第1の熱伝導流体の流動性を確実にするのに十分となった後、第1の通路に第2の熱伝導流体の流れを取り除くまたは低減することとを含む、方法。 - 第1の熱伝導流体を導入して第2の通路を予備加熱する前に、加熱器の第2の通路に第3の熱伝導流体を導入することと、
第2の通路からの第3の熱伝導流体の少なくとも一部を取り除くこととをさらに含む、請求項9に記載の方法。 - 第3の熱伝導流体の少なくとも一部を取り除くことが、第1の熱伝導流体で第3の熱伝導流体を置き換えることを含む、請求項10に記載の方法。
- 地表下地層を加熱するためのシステムであって、
地層内の複数の加熱器に熱い熱伝導流体をもたらすように構成された少なくとも1つの流体循環システムと、
循環システムに結合された地層内の複数の加熱器とを含み、
加熱器の少なくとも1つが、
第1のコンジットと、
第1のコンジット内に位置する第2のコンジットと、
第2のコンジットを流れる流体が第1のコンジットと第2のコンジットとの間の環状領域を流れることを可能とするように構成された第1の流れ切り換え装置とを含む、システム。 - 1つまたは複数の加熱器が、L形状の加熱器である、請求項12に記載のシステム。
- 流体が溶解塩であり、溶解塩が、オーバーバーデンの少なくとも一部に隣接する第2のコンジットを流れ、
熱い熱伝導流体が、第1のコンジットと、処理領域の少なくとも一部に隣接する第2のコンジットとの間の環状領域を流れる、請求項12に記載のシステム。 - 少なくとも1つの流体循環システムが、
処理領域の第1の側に近接した第1の流体循環システムと、
処理領域の第2の側に近接した第2の流体循環システムとを含み、
第1の循環システムが、第1のセットの加熱器の入口に溶解塩をもたらし、第2の処理システムが、第1のセットの加熱器の出口から溶解塩を受ける、請求項12に記載のシステム。 - 地表下地層を加熱する方法であって、
地表下地層内に位置した加熱器を介して第1の熱伝導流体を循環させて、加熱器内の第2の熱伝導流体の流動性を確実にする温度に加熱器の温度を上げることと、
加熱器を介しての第1の熱伝導流体の循環を停止することと、
地表下地層内に位置した加熱器を介して第2の熱伝導流体を循環させて、加熱器に隣接する熱処理領域の温度を上げることとを含む、方法。 - 加熱器が、地層内にコンジットを含む、請求項16に記載の方法。
- 加熱器が、コンジットインコンジット加熱器を含み、第1の熱伝導流体が、加熱器を介して第1の通路を流れ、第2の熱伝導流体が、加熱器を介して第2の通路を流れる、請求項16に記載の方法。
- 地表下地層を加熱するためのシステムであって、
地層内の複数の加熱器に熱い熱伝導流体をもたらすように構成された少なくとも1つの流体循環システムと、
循環システムに結合された地層内の複数の加熱器とを含み、
加熱器の少なくとも1つが、
第1のコンジットと、
第1のコンジット内に位置した第2のコンジットと、
第2のコンジットを流れる流体が第1のコンジットと第2のコンジットとの間の環状領域を流れることを可能とするように構成された第1の流れ切り換え装置とを含み、
第1のコンジットの少なくとも一部は、電流が該部分に印加される場合に抵抗加熱されるように構成されており、抵抗加熱が、熱伝導流体を加熱して加熱器内で熱伝導流体の流れを維持するように構成されている、システム。 - 抵抗加熱されるように構成された第1のコンジットの一部が、第1のコンジットのオーバーバーデン部分を含む、請求項19に記載のシステム。
- 地表下地層を加熱するためのシステムであって、
地層内の複数の加熱器に熱い熱伝導流体をもたらすように構成された少なくとも1つの流体循環システムと、
循環システムに結合された地層内の複数の加熱器とを含み、
加熱器の少なくとも1つが、
第1のコンジットと、
第1のコンジット内に位置した第2のコンジットと、
第2のコンジットを流れる流体が第1のコンジットと第2のコンジットとの間の環状領域を流れることを可能とするように構成された第1の流れ切り換え装置とを含み、
第2のコンジットの少なくとも一部は、電流が該部分に印加される場合に抵抗加熱されるように構成されており、抵抗加熱が、熱伝導流体を加熱して加熱器内で熱伝導流体の流れを維持するように構成されている、システム。 - 抵抗加熱されるように構成された第2のコンジットの該部分が、第2のコンジットのオーバーバーデン部分を含む、請求項21に記載のシステム。
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