Babak MORADI (PhD, DBA)’s Post

Reservoir Engineering Time-lapse (4D) Seismic is the use of multiple seismic data sets to help monitor and predict the change of reservoir properties (fluids, pressure) during production across the field -- not just at wells. 4D Seismic Time-lapse (4D) reservoir monitoring is a proven technology – Increases reserves and recovery • Locate bypassed and undrained oil and gas • Optimize infill well locations and flood patterns – Decreases operating costs • Reduce reservoir model uncertainty • Reduce dry holes/sidetracks and target optimal completions • Technology profitably used by industry • Typically initiate with a screening study followed by a more in-depth feasibility study before any acquisition efforts. #4Dseismic #reservoirengineering #reservoirmonitoring

Flowing Material Balance (FMB) Tool: The Flowing Material Balance (FMB) is an analytical method that allows reservoir engineers to estimate key reservoir parameters without requiring well shut-in. By analyzing production data, including only oil rates (qo) and flowing wellhead pressure (FWHP) or flowing bottom hole pressure (FBHP), engineers can approximate: -- Original Oil-in-Place (OOIP): The total volume of oil initially present in the reservoir. -- Average Reservoir Pressure (Pavg): The average pressure within the reservoir. -- Permeability (K). -- Drainage Area (A): The area of the reservoir that contributes to production from a well. -- Oil Recovery Factor (RF): The proportion of the OOIP that can be recovered. This technique provides valuable insights into reservoir performance and can be used to optimize production strategies #Link_to_download_the_file: https://lnkd.in/eYTNmWqX #petroleumengineering #reservoirengineering #oilgas

What is drillstem test? A Drillstem Test (DST) is a temporary completion operation used to evaluate the productivity and characteristics of a hydrocarbon-bearing formation or reservoir. It involves: 1. Running a drillstem assembly (DST string) into the wellbore 2. Isolating the test interval with packers or plugs 3. Opening ports or valves to allow fluid flow from the formation 4. Measuring pressure, temperature, and flow rates 5. Collecting fluid samples for analysis DSTs provide valuable data on: - Reservoir pressure and temperature - Fluid properties (oil, gas, water) - Permeability and porosity - Productivity and flow rates - Formation damage or skin effects The primary objectives of a DST are to: 1. Evaluate reservoir productivity 2. Determine fluid properties and composition 3. Assess formation damage or stimulation requirements 4. Gather data for reservoir modeling and simulation 5. Support decisions on well completion and production optimization DSTs are commonly used in: - Exploration wells to evaluate new discoveries - Appraisal wells to assess reservoir extent and properties - Development wells to optimize completion and production strategies By analyzing DST data, operators can make informed decisions on well development, production optimization, and reservoir management.

VFM/Sudden Water Production in a Deep Water Oil Well. Oilfield Data Services Inc. (ODSI) was brought in to diagnose the root cause(s) of sudden water production (zero to 4000 BWPD almost overnight!) in a deepwater subsea GOM oil well. Using the tree gauge and the downhole gauge to perform multi-phase rate calculations, independently of the MPFM. ODSI also performed automated PTA and additional reservoir evaluation work to determine that produced water was extraneous and would not affect the recovery from the reservoir, concluding that an intervention was not warranted. The findings emphasize the importance of accurate meter calibration and thorough reservoir evaluation to understand unexpected production behaviors, highlighting the necessity of integrating real-time data analysis for effective reservoir management and decision-making. ODSI saved the client $130 MM in well intervention costs by conducting this investigation. Do you have similar experience? Do you seek an answer? #Water_Production #Auto_PTA #Well_Production_Improvement Further detail of the case study can be found at https://lnkd.in/gNmU3G-4

Reservoir Engineering Terms - plugging Understanding key concepts is crucial in reservoir engineering. When discussing plugging, it refers to particles larger than half of the pore space diameter. These particles serve a specific purpose - they plug at the sand face, ultimately acting as a fluid loss control agent. #ReservoirEngineering #OilandGas #EngineeringTerms

UBD Well Control Key Dynamic Well Control Lessons: If choke opening or injection rates are changed: – Annular pressure response will first be due to friction, then to liquid holdup – Since friction and liquid hold up can act oppositely, steady state equilibrium can be different than initial response • DP connection dynamics depend on complex factors such as geometry, Gas:Liquid Ratio, reservoir PI • Surface control actions for maintaining BHP vary if annulus is “friction” or “hydrostatically” dominated • Wells can be “over” and “under” balanced simultaneously

📌𝐖𝐞𝐭𝐭𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐢𝐧 𝐭𝐡𝐞 𝐎𝐢𝐥 𝐚𝐧𝐝 𝐆𝐚𝐬 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲📌 ✔️Wettability is a critical concept in the petroleum industry, influencing the efficiency of hydrocarbon recovery. It describes the preference of a solid surface to be in contact with one liquid over another. In simpler terms, it determines how fluids distribute themselves within the pores of a reservoir rock. 1-𝘿𝙚𝙛𝙞𝙣𝙞𝙩𝙞𝙤𝙣 Wettability is the tendency of one fluid to spread on or adhere to a solid surface in the presence of other immiscible fluids. It is usually measured by the contact angle between the solid surface and the fluid. 2-𝙏𝙮𝙥𝙚𝙨 𝙤𝙛 𝙒𝙚𝙩𝙩𝙖𝙗𝙞𝙡𝙞𝙩𝙮 🔸Water-wet: The rock surface prefers water over oil. 🔸Oil-wet: The rock surface prefers oil over water. 🔸Intermediate-wet: There is no strong preference for either fluid. 3-𝙄𝙢𝙥𝙤𝙧𝙩𝙖𝙣𝙘𝙚 𝙞𝙣 𝙊𝙞𝙡 𝙍𝙚𝙘𝙤𝙫𝙚𝙧𝙮 🔹Reservoir Characterization: Understanding wettability helps in characterizing the reservoir and predicting fluid distribution. 🔹Enhanced Oil Recovery (EOR): Wettability alteration techniques can be applied to improve oil recovery rates. For example, chemical treatments can change the wettability to enhance the extraction of oil. 🔹Waterflooding Efficiency: The effectiveness of waterflooding operations, where water is injected to push oil towards production wells, is highly dependent on the wettability of the reservoir rocks. 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 1-Reservoir Management:Accurate knowledge of wettability helps in designing better reservoir management strategies and optimizing production. 2-Simulation Models: Incorporating wettability data into simulation models improves the accuracy of predicting fluid flow and recovery efficiency. 3-Formation Damage Control: Understanding wettability can prevent issues related to formation damage and improve the longevity of production wells. ✔️Wettability is a cornerstone of efficient reservoir management and enhanced oil recovery strategies. By leveraging this concept, the oil and gas industry can optimize extraction processes and maximize resource utilization. #OilAndGas #Petroleum_Engineering #Reservoir_Management #Enhanced_Oil_Recovery #EOR #Wettability #EPRI_Training #Third_Training_Day

Reservoir engineering managers, this one’s for you! We’ve introduced Company Level Economic Models & ELTs to help standardize economic analysis across your team. With secure permission settings, you can trust that your models are always up-to-date and reliable. These new features are here to simplify things and keep everyone on the same page. Available on all accounts! Interested in seeing it for yourself? 👉 https://lnkd.in/gvxgxHH8 #oilandgas #combocurve #engineering #reservoirengineering

Fundamental Principles of Reservoir Engineering outlines the techniques required for the basic analysis of reservoirs prior to simulation. It reviews rock and fluid properties, reservoir statics, determination of original oil and gas in place by volumetrics and material balances, evaluation of drive mechanisms, fluid flow in porous media, aquifer influx, well testing, fluid distribution and displacement, and decline-curve analysis. #reservoirengineering #fluiddynamics #oilgasindustry #welltesting #reservoiranalysis #WeAreSPE #oilandgas #energybooks https://buff.ly/3W8CK53