From a strategic perspective, underground oil and gas storage protects the security and stability of acountry’s energy supply. Even in war, it could help deal with the upheaval of international oil and gas markets and slow down the impact on national economy. Since 1977, the United States strengthened its construction of oil and gas storage in underground karst caves and salt caverns, and did detailed experimental studies of the long-term safety and stability of the underground storages. These studies include (1) tests on the in-situ stress field of underground storage where the tectonic stress is typical; (2) static and dynamic monitoring of rock deformation of the underground storage during construction; (3) on-site rheological tests on the long-term stability of rocks in the underground storage; (4) tests of natural and artificial water-seal technology in underground storage; (5) compilation and application of standards and specifications on geotechnical classification and test methods around the subjects in (1) to (4). The studies ensured the safety and health of underground storage in the designed 100-year life time. These achievements could be taken as reference for the construction of oil and gas storage of underground water-sealed caves in China.
Key words
underground oil and gas storage /
long-term stability /
rheological test /
safety of underground storage /
health during lifetime
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References
[1] ASTM D4645—2008, Standard Test Method for Determination of the In-Situ Stress in Rock Using the Hydraulic Fracturing Method[S].
[2] ASTM D4631—1995(2000), Standard Test Method for Determining Transmissivity and Storativity of Low Permeability Rocks by In Situ Measurements Using Pressure Pulse Technique[S].
[3] ASTM D4630—1996(2008), Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test [S].
[4] ASTM D4525—2004, Standard Test Method for Permeability of Rocks by Flowing Air [S].
[5] ASTM D4403—1984(2000), Standard Practice for Extensometers Used in Rock [S].
[6] ASTM D4535—2008, Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer [S].
[7] ASTM D4612—2008, Standard Practice for Calculating Thermal Diffusivity of Rocks [S].
[8] ASTM D4553—2008, Standard Test Method for Determining In Situ Creep Characteristics of Rock [S].
[9] ASTM D4435—2008, Standard Test Method for Rock Bolt Anchor Pull Test [S].
[10]ASTM D4436—2008, Standard Test Method for Rock Bolt Long-Term Load [S].
[11]ASTM C1436—2008, Standard Specification for Materials for Shotcrete [S].
[12]ASTM C1385/C1385M—2010, Standard Practice for Sampling Materials for Shotcrete [S].
[13]ASTM C1116/C1116M—2010, Standard Specification for Fiber-Reinforced Concrete [S].
[14]ASTM D5731—2008, Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications [S].
[15]ASTM D2487—2010, Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System) [S].
[16]ASTM C938—2010, Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete [S].
[17]LEE M Y, HAIMSON B C. Statistical Evaluation of Hydraulic Fracturing Stress Measurement Parameters[J].International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1989, 26(6):447-456.
[18]CORNET F H, VALETTE B. In Situ Stress Determination from Hydraulic Injection Test Data[J]. Journal of Geophysical Research, 1984, 89(B13):11527-11537.
[19]ABERG B. Model Tests on Oil Storage in Unlined Rock Caverns[C]∥ Proceedings of the First International Symposium on Storage in Excavated Rock Caverns. Stockholm, September 5-8,1977:517-530.
[20]GOODALL D C, ABERG B, BREKKE T L. Fundamentals of Gas Containment in Unlined Rock Caverns[J]. Rock Mechanics and Rock Engineering, 1988, 21(4): 235-258.
[21]REHBINDER G, KARLSSON R, DAHLKILD A. A Study of a Water Curtain Around a Gas Store in Rock[J]. Applied Scientific Research, 1988, 45(2): 107-127.
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