Abstract
A method is presented to determine subsidence, compaction, and in-situ stress induced by pore-pressure change. The method is useful for a reservoir whose Young's modulus is less than 20% or greater than 150% of the Young's modulus of the surrounding formation (where the conventional uniaxial strain assumption may not hold). In this work, a parameter study was conducted to find groups of parameters controlling the in-situ stress, subsidence, and compaction. These parameter groups were used to analyze the numerical calculation results generated by a three-dimensional (3D), general, nonlinear, finite-element model (FEM). The procedure and a set of figures showing how to calculate the in-situ stress, subsidence, and compaction induced by pore-pressure changes are provided. Example problems are also included to prevent confusion on sign convention and units.
| Original language | English |
|---|---|
| Pages (from-to) | 71-79 |
| Number of pages | 9 |
| Journal | JPT, Journal of Petroleum Technology |
| Volume | 41 |
| Issue number | 1 |
| Publication status | Published - 1989 Jan |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Earth and Planetary Sciences (miscellaneous)
- Energy Engineering and Power Technology
- Fuel Technology
Cite this
Quick method to determine subsidence, reservoir compaction, and in-situ stress induced by reservoir depletion. / Morita, N.; Whitfill, D. L.; Nygaard, O.; Bale, A.
In: JPT, Journal of Petroleum Technology, Vol. 41, No. 1, 01.1989, p. 71-79.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Quick method to determine subsidence, reservoir compaction, and in-situ stress induced by reservoir depletion
AU - Morita, N.
AU - Whitfill, D. L.
AU - Nygaard, O.
AU - Bale, A.
PY - 1989/1
Y1 - 1989/1
N2 - A method is presented to determine subsidence, compaction, and in-situ stress induced by pore-pressure change. The method is useful for a reservoir whose Young's modulus is less than 20% or greater than 150% of the Young's modulus of the surrounding formation (where the conventional uniaxial strain assumption may not hold). In this work, a parameter study was conducted to find groups of parameters controlling the in-situ stress, subsidence, and compaction. These parameter groups were used to analyze the numerical calculation results generated by a three-dimensional (3D), general, nonlinear, finite-element model (FEM). The procedure and a set of figures showing how to calculate the in-situ stress, subsidence, and compaction induced by pore-pressure changes are provided. Example problems are also included to prevent confusion on sign convention and units.
AB - A method is presented to determine subsidence, compaction, and in-situ stress induced by pore-pressure change. The method is useful for a reservoir whose Young's modulus is less than 20% or greater than 150% of the Young's modulus of the surrounding formation (where the conventional uniaxial strain assumption may not hold). In this work, a parameter study was conducted to find groups of parameters controlling the in-situ stress, subsidence, and compaction. These parameter groups were used to analyze the numerical calculation results generated by a three-dimensional (3D), general, nonlinear, finite-element model (FEM). The procedure and a set of figures showing how to calculate the in-situ stress, subsidence, and compaction induced by pore-pressure changes are provided. Example problems are also included to prevent confusion on sign convention and units.
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UR - http://www.scopus.com/inward/citedby.url?scp=0024304570&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0024304570
VL - 41
SP - 71
EP - 79
JO - Journal of Petroleum Technology
JF - Journal of Petroleum Technology
SN - 0022-3522
IS - 1
ER -