... carried out in laboratory on tight Pre-salt carbonate samples from various facies of a Brazil offshore well. For creating fracture, direct shear tests were performed on initially intact cylindrical carbonate plugs in a conventional triaxial cell. The fresh fractures are then submitted to acid flow over...

... of carbonated facies The fields’ description highlighted the complexity of the carbonate settings and the resulting challenges in predicting the area of high-quality reservoir rock between wells. For these carbonates reservoirs, the usual facies log that is being provided as an input is a Static Rock...

... quality and structural geology study allows to propose a detailed reservoir and geomechanical sub-division for the Diyab formation. This approach will aid to better understand the lateral variability of facies, reservoir quality and geomechanical properties within the block which are crucial...

... drillstem/well testing complex reservoir asset and portfolio management reservoir characterization high simulator resolution increase recovery factor saturation height function investment algeria facies Introduction For both studied reservoirs (TAGI and TAGS), we adopted an integrated...

... analysis geochemical characterization unconventional reservoir evaluation propagation fracturing materials fracture facies hydrocarbon nj kerogen wellbore integrity reservoir geomechanics kerogen reservoir characterization toc west kuwait fracture intensity bedding plane najmah kerogen...

... geomechanically stable under the current in-situ stress condition. The study concluded that the predominant root-cause of severe lost circulations in the carbonate reservoir was cave-related rocks (cave facies) and excessive overbalance applied to reservoir pressure. The cave facies were supposed to be formed...

... 3D seismic. The calciturbidite facies has been identified in several wells with clear hydrocarbon shows and successful tests. Structural traps can be defined in tight ductile folds with a N-S trend, along with potential for stratigraphic traps. Main risk factors are around reservoir effectiveness...

... of the carbonate development within these Upper Shuaiba sequences in western Abu Dhabi. Newly acquired 3D seismic data, existing well data and regional information have been utilized for seismic interpretation and litho-facies analysis to characterize Shuaiba Sequence 5. These interpretations were then linked...

... Abstract Whole cores provide important and high-quality information about mineralogy, rock fabric and texture, porosity, saturations, geomechanical properties, facies stacking patterns, depositional environment, and fracture networks that often cannot be discerned with much certainty using...

... The detailed analyses of the tar indicate two "tar types". One is the "normal" tar ( APE=asphaltene precursor entity , see Wilhelms, A. & Larter, S.R., 1994 ) caused by pressure-temperature-solubility factors and deposited in reservoir facies, e.g. grainstones. The other "tar" is the now...

... potential of these formations has not been fully realised. Uncertainties exist between onshore-offshore and west-east correlations, with conflicting stratigraphic terminologies, and the distribution of the Hanifa and Tuwaiq Mountain formations across Abu Dhabi, particularly details of facies distributions...

... on conventional geophysical techniques is not accurate enough to meet the requirements of development. In order to improve the accuracy of thin reservoir prediction, a new thin reservoir prediction technique is proposed. This technical workflow main includes 4 steps: (1) Sedimentary facies identification based...

.... The model specifications are summarised in Table 1 . Abstract Objective/Scope Facies distribution in the static model of carbonate reservoirs provides a framework for the distribution the other petrophysical properties. Lower Shuaiba (LSH) reservoir model in Field WU is aiming to provide improved...

.... On the reservoir side, the rock facies clearly control the water saturation profiles; increasing the thickness of the transition zone by tens of feet towards the flank as seen in the development wells. Additionally, karsts and presence of open fractures created challenges for geosteering horizontal wells close...

... Abstract The purpose this study is to use geophysical technology, analyze the characteristics of typical sedimentary facies in the study area, extract sensitive seismic attributes, compile sedimentary facies distributions, establish a sedimentary model, and improve the understanding...

... developed in grainy facies with intergranular macro pores from shoals and moderate-energy lagoon settings. During later diagenesis, non-selective dissolution, dolomitization and late-stage cementation in these facies resulted in tortuous pore throat and low-connected secondary micro-meso pores. In low...

... trends and shoal facies distributions within the Apt. 5 is critical for predicting reservoir presence and quality. Given the complexity of the Apt. 5 system, understanding the key controls over depositional environments, such as paleowind direction, is an important first step. This study combined...

... well control. As the reservoirs were thin and beyond seismic resolution, it was vital that the facies and porosity be mapped in high resolution, with a high predictability, for successful placement of horizontal wells for future development of the field. We established a unified workflow...

..., the compartmentalization, rock facies quality, gas-water contact depth and sand production were considered as the main critical aspects that could impact the final success. Preserving mitigation strategies and adapting development flexibility concept have been prepared to overcome such subsurface unexpected conditions...

...) and Qualitative (Flooding observed but HPS depth is uncertain) depth indicators/flags were generated from the data set and became the foundation of the modelling the HPS. The first step in the workflow is to establish a robust geological conceptual model. For Reservoir B, certain facies contribute to HPS, which...