... Abstract This study had been performed to map the lateral and vertical heterogeneity of carbonate reservoir, using the newly acquired Ocean Bottom Node (OBN) data. Joint PP-PS pre-stack inversion has been performed to delineate the facies distribution and associated properties such as porosity...

.... geologist carbonate reservoir carbonate rock united states government upstream oil & gas asia government sedimentary rock clastic rock complex reservoir rock type sedimentology well logging facies micrite diagenesis saturation log analysis sedimentary geology low resistivity pay...

... in northern Oman. The NULMU often presents hydrocarbon shows in the subsurface but has never been targeted as a reservoir or studied in detail. This study focused on understanding the lithology, facies, depositional environment, regional distribution, and reservoir properties of the NUMLU to identify...

... facies and rock-types, distributions of petrophysical variables, etc.), data analysis before modelling favors an understanding of reservoir heterogeneity at the scale of the field, to the detriment of a more regional understanding. Reservoir modeling techniques, which to date are essentially...

... facies (mainly micrite and stylolite) in the Lower Reservoir. The study highlighted that the field was exposed to a paleo-temperature peak higher than the current reservoir temperature that transformed both types of tar into pyrobitumen, a solid carbon form with no potential for exploitation. Predicting...

...: understanding of depositional facies, followed by their diagenetic alterations, and later affected by deformations (fractures, compaction, etc.). These stages should be understood step-by-step following geological evolution of a reservoir. However, geologists who describe cores and interpret depositional...

... deformation and structural elements such as natural fractures and faults. Additionally, with inverted standoff images, open and closed natural fractures were identified and utilized in the fracture modeling of the field. All the forementioned identified features have been incorporated into the facies...

... infill well fracture propagation porous media reservoir seepage pore compressive strength coefficient xinjiang oilfield company deformation facies friction coefficient Geological Setting SH1 well area is administratively subordinate to Xinjiang Hoboksar Mongol Autonomous County. Unfixed...

... properties. We implemented mean-squared error and L1 norm as the loss functions during the training process. The L1 norm is the mean absolute values of the predicted hydrocarbon saturation, which can help promotes sparsity. The network learns on synthetic dataset. We use facies-based geostatistical...

... producer facies outcrop analogue society fogelberg geological scenario new development uncertainty multiscale modelling interpretation transmissibility multiplier Introduction Today's hydrocarbon developments are generally characterised by high complexity and uncertainty with low margins...

..., with regular interval capturing all facies. Removing outliers and harmonizing core geological-petrophysical measurements and logs is a key. The rock-typing workflow generates Static Rock Types (SRT) in core domain by integrating Petrophysical Groups (PG) with Candidate Rock Type (CRT), then propagating to 1D...

.... The former ones were very useful in understanding the sedimentary basin evolution while the other set of maps were useful in understanding the sedimentary processes which controlled the facies distribution and hence reservoir potential identification. In parallel to the correlation and the thickness mapping...

... confirmed by low instantaneous frequency and low amplitude in the Spectral Decomposition study. Core data analysis in Fatehgarh formation suggested presence of considerably more reservoir facies in the system compared to what is visible in wireline log. Drill cuttings data from wells across the field also...

... and stress sensitivity of the acidized fracture or propped fracture, a series of fracture permeability tests were 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...

... This section will briefly describe the considered static and dynamic uncertainties for all the three fields. Distribution of carbonated facies The fields’ description highlighted the complexity of the carbonate settings and the resulting challenges in predicting the area of high-quality...

... 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 by flank-margin cave system and its collapse due to deposition of overburden formations. A risk map of lost...

... and observed in the top Diyab and lowest part of the Arab, in a micritic limestone facies environment. Previous concepts struggled to justify the black tar deposition in the dense micritic carbonate mudstones. The initial porosity in this micritic mudstones was already very low and therefore a tar flocculation...

... The lower unit is generally characterized by dense aphanitic, skeletal, pelletallime mudstone and wackestone, whereas the upper unit usually comprises well-developed,shallow water, bioclastic, peloidal oolitic packstone and grainstone facies with stromatoporoid/coral debris in places...

... 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...

... 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 facies distribution to improve STOIIP...