Stress Conversion Coefficients of Loads Crucial to Well Bore Safety

2012 ◽  
Vol 622-623 ◽  
pp. 1606-1610
Author(s):  
Bao Kui Gao ◽  
Xuan Zhuo Han ◽  
Hong Qiang Zhang
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Oil And Gas ◽  
Well Bore ◽  
Oil And Gas Development ◽  
Stress Increase ◽  
High Pressure High Temperature ◽  
Key Points ◽  
Conversion Coefficients ◽  
Cement Sheath

During oil and gas development, high pressure, high temperature and non-uniform earth stress increase the complexity of stresses in well bore which is composed of casing, cement sheath and formation. In order to obtain well bore stresses in hostile conditions, a new model is established with cement sheath and formation are treated as different materials. To predict well bore stresses rapidly, stress conversion coefficients are obtained that may change loads into stresses at key points conveniently.

Experimental Measurements of the Solubility of Hydrocarbons in Compressed Natural Gas Under Pressure (10 – 100 MPa) and Temperature (50 – 150°C).

1983 ◽  
Vol 22 ◽  
Author(s):  
E. Nogaret ◽  
R. Tufeu ◽  
B. Le Neindre
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Natural Gas ◽  
Gas Phase ◽  
Oil And Gas ◽  
Experimental Measurements ◽  
Compressed Natural Gas ◽  
Oil And Gas Fields ◽  
High Pressure High Temperature ◽  
Gas Fields

ABSTRACTAn apparatus to measure phase equilibria under pressure is described. The composition of the gas phase was determined using a high pressure, high temperature sampling cell. We have found that compressed natural gas is a very good solvent of hydrocarbons. A possible application of this study is the understanding of processes which lead to migration of oil and the location of oil and gas fields.

scholarly journals High-pressure synthesis and crystal structure of the mixed-cation borate Ga4In4B15O33(OH)3

2019 ◽  
Vol 74 (4) ◽  
pp. 357-363
Author(s):  
Daniela Vitzthum ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
High Temperature ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Mixed Cation ◽  
High Pressure High Temperature ◽  
Pressure Synthesis

AbstractThe mixed cation triel borate Ga4In4B15O33(OH)3 was synthesized in a Walker-type multianvil apparatus at high-pressure/high-temperature conditions of 12.5 GPa and 1300°C. Although the product could not be reproduced in further experiments, its crystal structure could be reliably determined via single-crystal X-ray diffraction data. Ga4In4B15O33(OH)3 crystallizes in the tetragonal space group I41/a (origin choice 2) with the lattice parameters a = 11.382(2), c = 15.244(2) Å, and V = 1974.9(4) Å3. The structure of the quaternary triel borate consists of a complex network of BO4 tetrahedra, edge-sharing InO6 octahedra in dinuclear units, and very dense edge-sharing GaO6 octahedra in tetranuclear units.

Iodine-mediated high-pressure high-temperature carbonization of hydrocarbons and synthesis of nanodiamonds

2021 ◽  
Vol 137 ◽  
pp. 111189
Author(s):  
E.A. Ekimov ◽  
K.M. Kondrina ◽  
I.P. Zibrov ◽  
S.G. Lyapin ◽  
M.V. Lovygin ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
High Pressure High Temperature
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