... Abstract This study introduces an innovative physics-informed machine learning approach to predict the cumulative oil production, CO2 stored, and CO2 adsorbed during CO 2 injection. The developed model can be utilized to maximize both oil recovery and CO 2 storage in naturally fractured...

... Abstract Sustainable oil production and water management in the Eastern Venezuela Basin, where the largest world oil reserves are located, represents a great challenge. In the Orinoco Oil Belt or "La Faja Petrolífera Del Orinoco", the injection of polymer and surfactant (SP) has been envisioned...

... history. The study demonstrates how the tool systematically assesses reservoir performance, identifies inefficiencies, and prepares actionable plans to maximize recovery and extend field life. Three key modules were employed in the analysis of Field X: (i) interwell connectivity analysis and injection...

... carbon source for microbial activity, with rock abstraction capacity playing a critical role in H2S scavenging. Worst-case scenarios emphasize the risk of significant microbial souring if VFA content is underestimated or abstraction capacity is overestimated, particularly when injecting low-salinity...

..., and it provides a reliable approach for development strategy of production and injections in the field. Field-X is an offshore condensate gas field containing over 200 BSCM of natural gas and 200 MSCM of oil in place. Though field-X is the largest condensate reservoir in East China, the formation is tight...

... the atmosphere from these emissions. This is done through capturing the CO2 from its sources, transporting it to the injection location and then sequestrate it into deep formations. This CO 2 could be injected in saline aquifers or depleted oil and gas reservoirs for storing purposes or it could be injected...

... where wells suffer from low injectivity index and high well head injection pressure (WHIP). Reaching the expected injection rates therefore required very aggressive matrix-acid stimulation techniques. Acid wash is a common stimulation practice for medium-high permeability wells in ADNOC when...

... was implemented when the reservoir pressure was above bubble point. The reason being liberation of gas and shrinkage of oil resulting in high viscosity and low mobility oil remaining behind. If this liberation of gas is prevented by injecting water and conserving reservoir energy, both viscosity and mobility...

... shengli oilfield injection experimental study Introduction China has large reserves of heavy oil resources and is widely distributed, mainly in Liaohe Oilfield, Xinjiang Oilfield, Shengli Oilfield and Henan Oilfield ( Yang et al., 2022 ). Heavy oil has high viscosity, poor flow ability, shallow...

... Abstract Chemical injection has been emerged to be one of the processes that can improve oil recovery from major Malaysian offshore oilfield which is currently under waterflooding. Alkali-surfactant (AS) process was identified to be an optimized chemical system for this application...

... shallow, relatively less depleted zone show improvement in Es. Implementing a regular 5-spot pattern water flood instead of random spot water injection in a major shallow zone improves Ed and Es. Lastly, Alkaline Surfactant Polymer (ASP) flooding improves Ep. A detailed roadmap was generated for each...

... Abstract Horizontal wells have been applied in Middle East universally. However, with complex geological conditions including thief zone, aquifer and heavy oil, there are diverse production/injection performances for horizontal wells. Therefore, history matching is a tough job for reservoirs...

... by injecting heavy oil followed by crude oil and aging for two weeks. Afterward, all six cores were subjected to spontaneous imbibition using Amott cell. This was further followed by forced imbibition using both ultra-centrifuge and coreflooding systems for comparison purposes and achieving S orw condition...

... Abstract We present an efficient compositional framework for simulation of CO2 storage in saline aquifers with complex geological geometries during a lifelong injection and migration process. To improve the computation efficiency, the general framework considers the essential hydrodynamic...

... could be improved but also the experimental cost could be minimized. The AOP measurements showed clear potential risks associated with CO 2 injection. Subsequently, the numerical model analysis was conducted with Cubic-Plus-Association (CPA) EoS model to identify the risk area during CO 2 injection...

... Type of fluid Density, kg/m 3 Viscosity, mPa.s diffusion coefficient,m 2 /s Gas 1 10 −2 10 −5 Liquid 46-1100 10 −1 10 −9 supercritical fluid 200-1050 10 −2 10 −7 CO 2 -EOR technology is the injection and flooding of a great quantity of CO 2 in reservoirs under...

... of this paper. Injection or production of fluid in naturally fractured reservoirs (NFRs) typically causes slippage, opening, and fracture compliance effects that depend on elevation or decrease of fluid pressure in the rock. In this work, we solve equations of fluid transport in a rock with a high density...

... Abstract Chemical injection has been identified as one of the upstream strategies by PETRONAS for maximizing oil recovery from a Malaysian offshore oil field which is currently operating under waterflooding and declining in oil production. A chemical application roadmap from laboratory to full...

... reservoirs are not satisfied by geothermal reservoirs. Based on extended studies it has been assumed to choose the properties of injected fluid in the reservoir conditions. But the gap between the reality and prediction couldn't be minimized as the properties of the hot and cold fluid in the reservoir...

... Abstract A compositional dynamic simulation model is fully implicitly integrated with a gas injection surface network model, to study the effects of CO2 injection into a depleted gas field. Multiple prediction scenarios are evaluated, under uncertainty, to reduce risk and improve decision...