JP5196371B2 - メタンハイドレート貯留層の浸透率維持方法 - Google Patents
メタンハイドレート貯留層の浸透率維持方法 Download PDFInfo
- Publication number
- JP5196371B2 JP5196371B2 JP2008146046A JP2008146046A JP5196371B2 JP 5196371 B2 JP5196371 B2 JP 5196371B2 JP 2008146046 A JP2008146046 A JP 2008146046A JP 2008146046 A JP2008146046 A JP 2008146046A JP 5196371 B2 JP5196371 B2 JP 5196371B2
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- Japan
- Prior art keywords
- well
- reservoir
- methane hydrate
- methane
- permeability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 36
- 230000035699 permeability Effects 0.000 title claims description 32
- 238000012423 maintenance Methods 0.000 title description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 86
- 239000010419 fine particle Substances 0.000 claims description 36
- 239000012530 fluid Substances 0.000 claims description 17
- 239000004576 sand Substances 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000002245 particle Substances 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 230000006837 decompression Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 230000001678 irradiating effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
超音波の照射が貯留層の浸透率に与える影響を確認するため、図6に示す装置を用いて通水実験を行った。同図に示す装置は、ゴムスリーブ内に貯留層を模擬した試料の層を収容できるようになっている。周圧・軸圧用ポンプは、模擬試料の層に対して周囲から均一に圧力(拘束圧:2.0MPa)を付与するために使用した。水注入用ポンプは、多孔質体を通じて模擬試料の層の上方から水を供給するために使用した。模擬試料の層及びその出口側に配置したフィルタを通過した水を採取ビンに採取し、この水に細粒分が含まれるか否かを確認した。なお、模擬試料の層の出口側に配置した上記フィルタは、細粒分は通るが骨格粒子は通らない開口を有するものを採用した。
骨格粒子:東北珪砂7号、
細粒分:HAカオリンクレー、
模擬試料の細粒分含有量:5質量%(骨格粒子:95質量%、細粒分:5質量%)、
模擬試料の孔隙率:40体積%
Claims (2)
- メタンガスの生産が行われているメタンハイドレート貯留層の浸透率を維持する方法であって、
メタンガスを含む流体が流れ込む坑井の仕上げ区間近傍に配置された超音波発振機から前記貯留層に向けて超音波を照射し、当該仕上げ区間近傍の前記貯留層の孔隙内にある粘土及び/又はシルトからなる細粒分を強制移動させて前記流体とともに前記坑井内に取り込むことにより、前記孔隙の閉塞を防止することを特徴とする方法。 - 前記貯留層が未固結の砂泥互層又は砂層であることを特徴とする、請求項1に記載の方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008146046A JP5196371B2 (ja) | 2008-06-03 | 2008-06-03 | メタンハイドレート貯留層の浸透率維持方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008146046A JP5196371B2 (ja) | 2008-06-03 | 2008-06-03 | メタンハイドレート貯留層の浸透率維持方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009293219A JP2009293219A (ja) | 2009-12-17 |
JP5196371B2 true JP5196371B2 (ja) | 2013-05-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008146046A Expired - Fee Related JP5196371B2 (ja) | 2008-06-03 | 2008-06-03 | メタンハイドレート貯留層の浸透率維持方法 |
Country Status (1)
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JP (1) | JP5196371B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5538269B2 (ja) * | 2011-02-22 | 2014-07-02 | 新日鉄住金エンジニアリング株式会社 | メタンハイドレートからのメタンガス採取装置及びメタンハイドレートからのメタンガス採取方法 |
JP2013036177A (ja) * | 2011-08-04 | 2013-02-21 | Jdc Corp | 集水管の施工方法、集水管の施工装置、集水管の施工構造 |
CN102373908B (zh) * | 2011-10-08 | 2014-08-13 | 龚大建 | 一种煤层气井下超声波增产抽采装置 |
US8910712B2 (en) * | 2011-10-31 | 2014-12-16 | Chevron U.S.A. Inc. | System and method for converting class II hydrate reservoirs |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4662232B2 (ja) * | 2003-11-10 | 2011-03-30 | 鹿島建設株式会社 | ガスハイドレートの生産方法及びシステム |
JP3914994B2 (ja) * | 2004-01-28 | 2007-05-16 | 独立行政法人産業技術総合研究所 | メタンハイドレート堆積層からの天然ガス生産設備と発電設備を具備する統合設備 |
WO2007023943A1 (ja) * | 2005-08-26 | 2007-03-01 | Central Research Institute Of Electric Power Industry | ガスハイドレートの生成方法、置換方法及び採掘方法 |
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- 2008-06-03 JP JP2008146046A patent/JP5196371B2/ja not_active Expired - Fee Related
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