JP5583399B2 - ガスハイドレートを含む地層において使用するためのセメント - Google Patents
ガスハイドレートを含む地層において使用するためのセメント Download PDFInfo
- Publication number
- JP5583399B2 JP5583399B2 JP2009500932A JP2009500932A JP5583399B2 JP 5583399 B2 JP5583399 B2 JP 5583399B2 JP 2009500932 A JP2009500932 A JP 2009500932A JP 2009500932 A JP2009500932 A JP 2009500932A JP 5583399 B2 JP5583399 B2 JP 5583399B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- cement composition
- cementitious material
- amount
- well bore
- 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.)
- Expired - Fee Related
Links
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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
(発明の分野)
本発明は、坑井ボア(wellbore)を保全することに関する。より具体的には、ガスハイドレート阻害剤を有するセメント組成物を用いて坑井ボアを保全すること、及びその使用方法に関する。
地下の地層、又は地下圏に存在するガス、石油、及び水などの天然資源は、通常、坑井ボアに掘削流体を循環させながら、坑井ボアを地下の地層まで掘削することによって回収される。掘削流体の循環を終了させた後、例えばケーシングなどのパイプストリングが坑井ボア内に通される。その後通常、そのパイプの内側を通して下方に、パイプの外側と坑井ボアの壁との間に位置する環状空間を通して上方に、掘削流体を循環させる。次に、一般的に1次セメンチングを行い、それによってセメントスラリーを環状空間内に配置し、かつ硬質マス(すなわち鞘部)へと硬化させ、その結果、パイプストリングを坑井ボアの壁に接着させ、かつ環状空間を封止する。それに続く2次セメンチング作業もまた行うことができる。
水、セメント系材料、及びガスハイドレート阻害剤を含むセメント組成物を調製すること、ならびに坑井ボア内にそのセメント組成物を配置することを含む、地下の地層中の坑井ボアを保全する方法が本明細書に開示されている。水、セメント系材料、及びガスハイドレート阻害剤を含むセメント組成物もまた開示されている。
水、セメント系材料、及び少なくとも1つのガスハイドレート阻害剤を含むセメント組成物が本明細書に開示される。さらに、そのような組成物の調製方法及び使用方法が開示される。本明細書に開示されるセメント組成物は、坑井ボアの保全に使用することができ、かつガスハイドレートを含む壊れやすい地理的領域中でガスハイドレートの解離を有利に阻害し得る。
1つの実施態様において、セメント組成物は、ポンプ送り可能な(pumpable)スラリーを形成するのに十分な量の水を含む。水は淡水又は塩水であってよく、例を挙げると、ブライン又は海水などの、不飽和水性塩溶液又は飽和水性塩溶液などである。水は、セメントの重量に対して約20〜約180%、あるいは、セメントの重量に対して約28〜約60%の量で存在してよい。
表1に示されているように、レシチンの存在及び非存在下、スラグ/半水和物セメント組成物に対するスラリー粘度の影響を測定した。該セメント組成物は、CFR−3セメント分散剤も含んでよく、該分散剤はHalliburton Energy Services社から市販されている分散剤である。これらの組成物に使用されている硫酸カルシウム半水和物は、特に断りのない限りGeorgia Pacific社から入手した。
表3に示されているように、密度低下添加剤として中空球を含むセメント組成物を調製し、様々な組成物の増粘時間を測定した。基本セメント組成物は、60:40のGP半水和物:スラグ、28%のSPHERELITE(bwc)、0.2%のCFR−3(bwc)セメント分散剤、0.57%(bww(水の重量に対して))のレシチン、68.6%の水(bwc)、終密度12 lb/ガロンであった。いくつかのケースにおいて、スラリーはクエン酸ナトリウム硬化遅延剤を含み、他のケースにおいては、Halliburton Energy Services社から市販されているリグノスルホン酸塩硬化遅延剤であるHR−5が使用された。特に断りがない限り、全ての組成物においてGP半水和物が使用された。
Claims (15)
- 地下の地層中の坑井ボアを保全する方法であって、
(a)水、セメント系材料、及びガスハイドレート阻害剤を含むセメント組成物を調製すること;及び
(b)該坑井ボア中に該セメント組成物を配置すること、
を含み、前記ガスハイドレート阻害剤がレシチンである、前記方法。 - 前記セメント組成物が、混合水の重量に対して0.4%〜1.0%の量のレシチンを含む、請求項1記載の方法。
- 前記セメント系材料が、ポルトランドセメント、ポゾランセメント、石こうセメント、リン酸塩セメント、アルミナ含量セメント、シリカセメント、アルカリ度セメント、又はそれらの組み合わせを含む、請求項1記載の方法。
- 前記セメント組成物が、50%〜80%の量のセメント系材料を含む、請求項3記載の方法。
- 前記セメント系材料が、高炉スラグ、ガラス質頁岩、硫酸カルシウム半水和物、又はそれらの組み合わせを含む、請求項1記載の方法。
- 前記セメント系材料が、高炉スラグ及び硫酸カルシウム半水和物を、1:4〜4:1の比で含む、請求項1記載の方法。
- 前記セメント系材料が、20%〜80%の量の高炉スラグを含む、請求項1記載の方法。
- 前記セメント系材料が、35%〜65%の量のガラス質頁岩を含む、請求項1記載の方法。
- 前記セメント系材料が、20%〜80%の量の硫酸カルシウム半水和物を含む、請求項1記載の方法。
- 前記セメント組成物が、硬化遅延剤をさらに含む、請求項1記載の方法。
- 前記硬化遅延剤がクエン酸ナトリウムを含む、請求項10記載の方法。
- 前記セメント組成物を泡立てることをさらに含む、請求項1記載の方法。
- 前記セメント組成物が、密度低下添加剤をさらに含む、請求項1記載の方法。
- 前記密度低下添加剤が、ガラスビーズ、ガス、又はそれらの組み合わせを含む、請求項13記載の方法。
- 前記地下の地層が、永久凍土層、ガスハイドレート、又はその両方を含む、請求項1記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/385,416 US7373982B2 (en) | 2006-03-21 | 2006-03-21 | Cements for use across formations containing gas hydrates |
US11/385,416 | 2006-03-21 | ||
PCT/GB2007/001259 WO2007107779A1 (en) | 2006-03-21 | 2007-03-21 | Cements for use across formations containing gas hydrates |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009530468A JP2009530468A (ja) | 2009-08-27 |
JP5583399B2 true JP5583399B2 (ja) | 2014-09-03 |
Family
ID=38157870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009500932A Expired - Fee Related JP5583399B2 (ja) | 2006-03-21 | 2007-03-21 | ガスハイドレートを含む地層において使用するためのセメント |
Country Status (7)
Country | Link |
---|---|
US (1) | US7373982B2 (ja) |
JP (1) | JP5583399B2 (ja) |
AU (1) | AU2007228560B2 (ja) |
BR (1) | BRPI0708947A2 (ja) |
CA (1) | CA2646172C (ja) |
RU (1) | RU2442878C2 (ja) |
WO (1) | WO2007107779A1 (ja) |
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-
2006
- 2006-03-21 US US11/385,416 patent/US7373982B2/en active Active
-
2007
- 2007-03-21 WO PCT/GB2007/001259 patent/WO2007107779A1/en active Application Filing
- 2007-03-21 CA CA 2646172 patent/CA2646172C/en not_active Expired - Fee Related
- 2007-03-21 JP JP2009500932A patent/JP5583399B2/ja not_active Expired - Fee Related
- 2007-03-21 RU RU2008141719/03A patent/RU2442878C2/ru not_active IP Right Cessation
- 2007-03-21 BR BRPI0708947-3A patent/BRPI0708947A2/pt not_active Application Discontinuation
- 2007-03-21 AU AU2007228560A patent/AU2007228560B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU2007228560A1 (en) | 2007-09-27 |
CA2646172C (en) | 2012-05-15 |
RU2442878C2 (ru) | 2012-02-20 |
BRPI0708947A2 (pt) | 2011-06-14 |
CA2646172A1 (en) | 2007-09-27 |
AU2007228560B2 (en) | 2011-09-15 |
RU2008141719A (ru) | 2010-04-27 |
US20070221378A1 (en) | 2007-09-27 |
US7373982B2 (en) | 2008-05-20 |
WO2007107779A1 (en) | 2007-09-27 |
JP2009530468A (ja) | 2009-08-27 |
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