| Autor: |
Nwosu, Jacinta C., Chukwu, Godwill U., Igboekwe, Magnus U., Agbasi, Okechukwu E. |
| Předmět: |
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| Zdroj: |
Petroleum & Coal; 2022, Vol. 64 Issue 1, p120-130, 11p |
| Abstrakt: |
An accurate prediction of pore pressure is very essential in reducing the risk involved in a well or field life cycle. This has formed an integral part of routine work for exploration, development and exploitation team in the oil and gas industries. Several factors such as sediment compaction, overburden, lithology characteristics, hydrocarbon pressure and capillary entry pressure contribute significantly to the cause of overpressure. Hence, understanding the dynamics associated with the above factors will certainly reduce the risk involved in drilling and production. At the background to these challenges is the vague understanding of the subtle complexities that may characterize the geopressure system. Pore pressure and geomechanical properties were estimated in a viable reservoir in the study area. Eaton's pore pressure resistivity is between 1.440 -- 1.731 psi/ft, while pore pressures sonic is between 1.440 -- 1.601 psi/ft, the overburden pressure range between 3.065 to 3.169 psi/ft. Velocity and Poisson ratio in the reservoirs is between 1.699 -- 1.962 and 0.235 -- 0.324. The geomechanical analysis was used to infer GOC (Gas-Oil Contact) and OWC (Oil-Water Contact). Reservoir G14 R2, have the highest values pore pressures, due to the fluid content of the reservoir, its more of OWC, with just 66.1% of hydrocarbon in a pore space of 25.8%. The values of pore pressure are seen to correspond to the fluid content delineated from geomechanical evaluation of the reservoirs in the study area. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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