Summary Recent years have witnessed a renewed interest in development of coalbed methane (CBM) reservoirs. Optimizing CBM production is to many operators. Drilling horizontal and multilateral wells gaining popularity different reservoirs, with varying results. This study concentrates on variations horizontal-and multilateral-well configurations their potential benefits. In this study, several drilling patterns for reservoirs are studied. The reservoir parameters that been studied include gas...

Carbon capture and sequestration is the process of capturing carbon dioxide (CO

Abstract Today, the major challenge in reservoir characterization is integrating data coming from different sources varying scales, order to obtain an accurate and high-resolution model. The role of seismic this integration often limited providing a structural model for reservoir. Its relatively low resolution usually limits its further use. However, areal coverage availability suggest that it has potential valuable more detailed studies through process inversion. In paper, novel intelligent...

Abstract Closed-loop reservoir management requires representative models that can be updated quickly. Such kind of used for characterization connectivity would greatly contribute to decisions in waterflooding operations. In heterogeneous reservoirs are characterized with thief-zones/fractures or flow-barriers, may enhance prevent connectivity, it becomes challenging construct geological both reasonable accuracy and computational efficiency. this study, practical computationally-efficient...

An artificial-intelligence based decision-making protocol is developed for tight gas sands to identify re-fracturing wells and used in case studies. The methodology on fuzzy logic deal with imprecision subjectivity through mathematical representations of linguistic vagueness, a computing system the concepts set theory, if-then rules, reasoning. Five indexes are characterize hydraulic fracture quality, reservoir characteristics, operational parameters, initial conditions, production related...

Abstract Gas cyclic pressure pulsing is an effective IOR method specifically for naturally fractured reservoirs. Due to the computational cost of simulating a large number scenarios, it arduous task determine optimum operational conditions process. In this study, practical screening and optimization workflow utilized most operating applications with N2 CO2 in fully-depleted reservoir. Two huff ‘n’ puff design schemes variable constant injection volumes are implemented compositional,...

Abstract We present a parametric study on the operational parameters of cyclic pressure pulsing with N2 and CO2. aim to develop better understanding how affect process performance in shallow, naturally fractured, depleted reservoir Big Andy Field eastern Kentucky. The includes analyses various design such as injection rate, lengths soaking periods, cycle rate limits, number cycles. Incremental oil production, peak net value (NPV) are considered criteria. Analyses have been performed using...

Summary Gas cyclic-pressure pulsing is an effective improved-oil-recovery (IOR) method in naturally fractured reservoirs. A limited number of studies concerning this the literature focus on specific reservoirs, yet optimum operating conditions have not been broadly investigated. In study, we present a detailed parametric study process from both operational and reservoir perspectives. Incremental oil production, discounted incremental net value (NPV) are considered as important markers for...

Abstract Dikili-Izmir Region (Western Turkey) has been an active area of development for the utilization geothermal resources. In this study, we aim to quantify untapped resource-potential in region both direct and indirect purposes. After collecting geological data from literature, probabilistic heat-in-place calculations are carried out. Yuntdağ Volcanites Kozak Pluton considered, latter is proposed as enhanced system. It shown that, with 50% probability, 75 MW $$_e$$ <mml:math...

Abstract Recent years have witnessed a renewed interest in development of coalbed methane (CBM) reservoirs. The success stories San Juan basin and other CBM horizons triggered this interest. Many operators are asking questions regarding the most optimum way producing Drilling horizontal multi-lateral wells gaining popularity many different reservoirs with varying results. This study concentrates on variations their potential benefits. It has been rule thumb that vertical appropriate for...

Summary Capacitance/resistance modeling (CRM) is an empirical waterflood technique based on the signal correlations between injection rates and gross production rates. CRM can satisfactorily estimate (liquid) rate. The oil-production-rate forecast fitting oil fractional-flow model, Leverett (1941) or Koval (1963) model to historical data. We observed that in this approach less satisfactory. propose a robust combines prediction with Buckley-Leverett displacement-theory-based analytical...