Indirect prediction of rock elasticity and compressibility strength using well log data at selected sites within Rumaila oilfield, Southern Iraq
Joint Authors
al-Najm, Fahd Mansur
al-Maliki, Husayn Said
Source
Issue
Vol. 51, Issue 2 (31 Dec. 2018), pp.41-53, 13 p.
Publisher
Publication Date
2018-12-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Abstract EN
Wellbore failure is the main reason for about 14 % of drilling non-productive time (NPT) for new wells in Rumaila oilfield; these breakouts were observed in Shale and weak shaly Sandstones across the geologic column.
The rock mechanical properties which include elasticity (Young’s modulus, Bulk modulus, Shear modulus and Poisson’s ratio) and unconfined compressive strength (UCS) are broadly used in well design and wellbore stability by means of predicting the required drilling parameters that can help to reduce wellbore failure.
In this study, an indirect estimation of the rock mechanical properties was carried out using gamma ray, density, sonic (compressional and shear), and Neutron logs.
The log data were gathered from four wells (R-518, R-527, Ru-382 and Ru-385) in the Rumaila oilfield, that data cover the geological column from Saadi to Zubair formations.
Later, the indirect rock mechanical properties prediction results were compared with the direct measurements that been measured by triaxial mechanical laboratory tests for well R-530 and uniaxial tests on wells R-019, R-062 and R-530 in Rumaila oilfield.
The results of indirect estimation of rock mechanical properties showed similarity to direct measurements which make it reliable and can be used for wellbore stability analysis and may contribute effectively in building the geomechanical model.
American Psychological Association (APA)
al-Maliki, Husayn Said& al-Najm, Fahd Mansur. 2018. Indirect prediction of rock elasticity and compressibility strength using well log data at selected sites within Rumaila oilfield, Southern Iraq. Iraqi Geological Journal،Vol. 51, no. 2, pp.41-53.
https://search.emarefa.net/detail/BIM-890563
Modern Language Association (MLA)
al-Maliki, Husayn Said& al-Najm, Fahd Mansur. Indirect prediction of rock elasticity and compressibility strength using well log data at selected sites within Rumaila oilfield, Southern Iraq. Iraqi Geological Journal Vol. 51, no. 2 (2018), pp.41-53.
https://search.emarefa.net/detail/BIM-890563
American Medical Association (AMA)
al-Maliki, Husayn Said& al-Najm, Fahd Mansur. Indirect prediction of rock elasticity and compressibility strength using well log data at selected sites within Rumaila oilfield, Southern Iraq. Iraqi Geological Journal. 2018. Vol. 51, no. 2, pp.41-53.
https://search.emarefa.net/detail/BIM-890563
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 53
Record ID
BIM-890563