Notes

Spe Integrated Reservoir Characterization, Surveillance And Management: Advances And Challenges Workshop
Teams want to grasp the aptitude of the reservoir to retailer fluids, stresses acting on the reservoir, what fluids exist and how they interact with each other and the rock, and how fluids are moving (or are prone to move) through the reservoir. Information, nonetheless, is never free, and different surveillance tools provide various qualities of data, so it is important for subsurface professionals to choose correctly in phrases of which issues to solve and which instruments to pull out of the toolbox. Ultimately, we need to apply the right tools to the best problems to maximize the worth of the information we collect. Zooming far out, notably if little data is on the market for a reservoir, we may be interested in tools and strategies to validate and refine the geological concept for a basin, together with the most likely deposition patterns for sediments. Zooming in to the level of interactions between wells, we want to use a unique toolbox that always contains finer-resolution geoscience mapping and engineering strategies such as analyzing production, pressure, and fluid-property tendencies from individual wells. But what’s actually thrilling is that many new approaches are being developed to understand reservoir behavior and well efficiency at incredibly high resolution—at the fracture scale and even the pore scale.
An clever integrated production optimization framework is being utilized as a single platform to combine information, processes, and multidisciplinary data in a systematic and environment friendly method. This permits management and end-users to proactively keep engineering focus on problematic wells diagnostic and opportunity technology that assist the execution of the business plan in a more coherent and dependable style. By performing reservoir performance analysis and surveillance, operators could make informed decisions concerning manufacturing strategies, reservoir management techniques, and area growth plans. These actions help optimize hydrocarbon recovery, extend area life, and maximize the economic value of the reservoir. The significance of surveillance data by way of routine and deliberate diagnostic and monitoring purposes is measured towards an ultimate acquire in manufacturing, water curtailment, production optimization, and general meeting of finest reservoir-management practices.
Geology-specific frac design
We seek methods for projecting the nonlinear state problem onto a linear (or weakly linear) space based on several methods – particularly, time delay embedding, physics-inspired features, and dynamic mode decomposition (DMD). This augments the knowledge contained in the system state with measurements of the state historical past. We also developed a background signal decomposition technique to extrapolate routine buildup pressure data to estimate common reservoir pressure based mostly on two totally different strategies – optDMD (optimized DMD) and SINDy (sparse identification of nonlinear dynamics). Intelligent chemical tracers are a new technology that gives insight intothe inflow distribution with out intervention operations or major alterations tothe completion design. The tracers encompass smart plastic and unique chemicalcompounds that are combined into a matrix that resembles strips of plastic. For example, whenwater sensitive matrix is contacted by water, the matrix releases its uniquechemical fingerprint (tracer) at a prescribed rate.
The planning requires geoscientists, drilling engineers, and nicely planners to have detailed information on the subsurface geology and its attributes as well... Efficient exploration and growth of the Al Shaheen subject requires brief, medium and long-term planning. To de-risk the project, the more advanced "A" West Field is being re-developed in a phased method. Following subject trials, initial CSS is now used to enhance the gross rate of poorly performing producers, which constitutes a change to the FDP.
Along similar lines, the dynamic nature of the trade has also driven subsurface practitioners to think innovatively and apply current applied sciences for out-of-the-box solutions. For instance, tracers, historically used for understanding subsurface connectivity, at the second are being used to calibrate floor networks and optimize gas carry injection efficiency. Such unconventional approaches have been explored in paper SPE , highlighting their effectiveness.
Geology-specific frac design
Authors applied technology to evaluate the current skin components without stopping such wells for particular tests, solely on the premise of the results of joint measurements of bottomhole pressure and nicely manufacturing. Closed-loop reservoir administration (CLRM) is a combination of frequent life-cycle production optimization and data assimilation (also often known as computer-assisted history matching); see Fig. Life-cycle optimization goals at maximizing a financial measure, usually web current value (NPV), over the manufacturing lifetime of the reservoir by optimizing the production strategy. This may involve well location optimization, or, in a more restricted setting, optimization of properly charges and pressures for a given configuration of wells, on the basis of a number of numerical reservoir fashions. For further info on CLRM see, e.g., (Jansen et al. 2005, 2008, 2009; Naevdal et al. 2006; Sarma et al. 2008; Chen et al. 2009; Wang et al. 2009; Foss and Jensen 2011; Hou et al. 2015).

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