Wellbore instability management using geomechanical modeling and wellbore stability analysis for Zubair shale formation in Southern Iraq

RH Allawi, MS Al-Jawad - Journal of Petroleum Exploration and …, 2021 - Springer
Wellbore instability problems cause nonproductive time, especially during drilling operations
in the shale formations. These problems include stuck pipe, caving, lost circulation, and the …

[HTML][HTML] Estimation of rock uniaxial compressive strength for an Iranian carbonate oil reservoir: Modeling vs. artificial neural network application

M Hassanvand, S Moradi, M Fattahi, G Zargar… - Petroleum …, 2018 - Elsevier
Estimation of rock mechanic parameters is an important issue in reservoir management.
Uniaxial compressive strength (UCS) and elastic modulus are the most important factors in …

Laboratory testing of addition of solvents to steam to improve SAGD process

M Ardali, M Barrufet, DD Mamora - SPE Canada Heavy Oil Conference, 2012 - onepetro.org
Steam Assisted gravity drainage (SAGD) is demonstrated as a proven technology to unlock
heavy oil and bitumen in Canadian reservoirs. One of the long-term concerns with the SAGD …

Application of genetic programing technique for predicting uniaxial compressive strength using reservoir formation properties

M Koolivand-Salooki, M Esfandyari, E Rabbani… - Journal of Petroleum …, 2017 - Elsevier
In this study, we developed a relationship for Uniaxial Compressive Strength (UCS) based
on total formation porosity, bulk density and water saturation using Genetic Programming …

Estimation of geomechanical failure parameters from well logs using artificial intelligence techniques

RM Alloush, SM Elkatatny, MA Mahmoud… - SPE Kuwait Oil and …, 2017 - onepetro.org
Geomechanical failure parameters are best estimated from core samples, which are not
always available. To address this, numerous relationships have been proposed that relate …

Development of a new correlation to estimate the unconfined compressive strength of a Chicontepec Formation

C Rabe, G Silva… - International Journal …, 2018 - ascelibrary.org
Abstract The Chicontepec Formation is a complex and heterogeneous calcitric-lithic
sandstone reservoir with significant historical problems of borehole collapse. To predict and …

A new approach for predrilling the unconfined rock compressive strength prediction

M Nabaei, K Shahbazi - Petroleum science and technology, 2012 - Taylor & Francis
A reasonable knowledge of rock's physical and mechanical properties could save the cost of
drilling and production of a reservoir to a large extent by selection of proper operating …

Mechanical earth model to mitigate wellbore instability of Nahr Umr formation in Southern Iraq oilfield

RH Allawi - Arabian Journal of Geosciences, 2024 - Springer
Borehole instability problems have caused non-productive time while drilling operations in
the Nahr Umr shale formation. The drilling difficulties, including stuck pipe, caving, and tight …

Mechanical earth modeling improves drilling efficiency and reduces non-productive time (NPT)

A Moazzeni, M Nabaei, K Shahbazi… - SPE Deep Gas …, 2010 - onepetro.org
As time goes by, increase in world energy demand forced oil and gas companies to drill
deeper in order to produce more oil and gas for quenching the thirst of human needs. This …

Heterogeneity and anisotropy factors in sidewall core selection, acquisition, and analysis

VS Torlov, GS Torres Lozada, JW Martin… - SPE Kingdom of Saudi …, 2018 - onepetro.org
The need to validate and integrate assorted petrophysical logs with core measurements is
key in defining formation properties, rock composition, diagenetic effects, clay typing, rock …