This SEPAL module is used to generate conceptual well completion schematic (initial), store completion schematic as deployed (final) and also manage changes to well configuration as a result of intervention over time. All these data can be queried and retrieved from the database when required.
The output from the SEPAL Well Schematic Management module is a digital well status diagram that can be queried for various engineering analyses and easily updated to capture the evolution of schematics over the life of the well.
Reservoir performance analysis is a key component of well and reservoir management. It provides the basis for understanding reservoir dynamics such as pressure and energy evolution.
This module drives well and reservoir management by seamlessly integrating data from PVT, production and BHP databases in SEPAL.
With this module, the tedium involved in data gathering from several sources for reservoir analysis is eliminated. The data are usually of high fidelity having being thoroughly validated.
PVT is essential in describing, characterising, and determining reservoir fluid behaviour and properties at different temperature and pressure conditions.
It involves data QA/QC, fluid characterisation, and simulation of laboratory experiments with suitable equation of state (EOS) or correlations to predict PVT data at different conditions vital for well, reservoir and facilities management activities.
Managing an oil and gas asset involves continuous evaluation of the production system in order to identify production and recovery enhancement opportunities with the aim of optimising the life cycle value of the asset. The production optimisation process entails periodically reviewing the elements of the production system ( well, reservoir and surface facilities) to identify and implement optimisation opportunities.
SEPAL Production Optimisation module contains features for modelling well and reservoir performance, generating well operating envelopes and quantifying gains associated with identified opportunities. It is an enriched module as it affords users access to digitised well schematic information and other assured data for modelling, thus resulting in high success rate for intervention operations.
Well Intervention Management
Well intervention activities are carried out to resolve problems in oil and gas wells, and thus improve the performance of the wells. These intervention activities may change the state or geometry of the well. Managing information on these changes that occur in a well as a result of intervention activities is a major challenge in the industry.
Most times, intervention information is domiciled in personal workstation, making retrieval and analysis of the data by end users difficult. SEPAL Well Intervention module enables engineers to effectively manage well intervention data by serving as a central repository for managing these data.
Well Integrity Management
Well integrity management is essential for well longevity and safeguard of maximum recovery. Integrity management is applicable to all the components that constitute the integrated production system.
SEPAL Well Integrity Management module supports visualisation of annulus pressure trends, calculation of maximum allowable annulus pressure (MAASP) and maximum allowable wellhead operating pressure (MAWOP), and the generation of well barrier schematics.
SEPAL comes pre-configured according to the NORSOK D-010 and OLF-117 guidelines, and is easily configured to a corporate standard. It supports the generation of compliance reports for governing agencies
Proper log visualisation is critical for accurate lithology and fluid interpretation. Visualisation can be in the form of log curves in depth, cross-plots, box-plots etc., from which rock quality and fluid contacts in the near-wellbore region can be determined. Since rock quality and hydrocarbon sweep at the sandface have a direct influence on well performance in terms of rates and fluid phases produced, log visualisation leading to correct interpretation becomes pivotal for the success of a WRFM strategy .
SEPAL Petrophysics module enables users to visualise full-scale log data along the wellbore in different depth references. It also allows for easy creation of markers, reservoir zonation and customised plots. Logs can also be calculated from pre-existing logs and visualised to further sharpen the understanding of reservoir rock and fluid properties. Wells and datasets are presented in hierarchical user-friendly format with tabbed views.
Structural maps and cross-sections are useful for understanding the spatial distribution of the hydrocarbon accumulation in a reservoir. They are also useful for understanding structural elements of faults and geometry that can have a wholesale effect on reservoir performance.
SEPAL geology module allows users to easily generate and visualise top structure maps and create cross sections for their reservoirs. These annotated maps and cross-sections in conjunction with interpreted log data may provide information on reservoir dynamics including hydrocarbon sweep pattern and reservoir sweet spots important for unearthing new understanding of the reservoir integral to a successful WRM strategy.
Analytics involve the uncovering and interpretation of trends in data as well as the communication of the newly gained insight to make informed decisions.
SEPAL Analytics module provides a flexible and robust computational system that simplifies engineering analysis.