Abstract Understanding and managing uncertainties is critical for Carbon Capture Storage (CCS) projects. Storing carbon dioxide (CO2) underground in an identified depleted offshore field requires effective containment preventing any leaks. CO2 may leak through caprock, faults traps, or legacy wells the field. These could pose leakage risks if integrity of barriers not suitable over CCS project lifecycle. The objective this work to understand challenges a storage site by characterizing using...

Drillstring vibration is one of the limiting factors maximizing drilling performance. Torsional vibrations/oscillations while sever types drillstring which deteriorates overall performance, causing damaged bit, failure bottom-hole assembly, overtorqued tool joints, torsional fatigue drillstring, etc. It has been identified that wellbore-drillstring interaction and well face-drill bit are sources excitation oscillations. Predrilling analysis real time dynamics becoming a necessity for oil/gas...

Abstract A review of the literature has revealed lack a formal analysis performance empirical methods for prediction pressure volume temperature (PVT) properties Niger delta crude oils. This study presents an assessment predictive accuracy five bubble-point (P b ) correlations and oil formation factor (B ob against large measured PVT data bank from Delta Statistical techniques were used to evaluate commonly models estimating in order guide designers operators selecting best their particular...

Abstract The increasing atmospheric concentration of carbon dioxide (CO2), a greenhouse gas (GHG) is creating environmental imbalance and affecting the climate adversely due to growing industrialization. Global leaders are emphasizing on controlling production GHG. However, demands natural gas, industry embarking development high CO2 contaminant fields meet supply gap. Development management contaminated hydrocarbon add additional dimension sequestration after separation in project...

Abstract Underground storage of CO2 in depleted gas reservoirs is a greenhouse reduction technique that significantly reduces released into the atmosphere. Three major Central Luconia field, located offshore Sarawak, possess good geological characteristics needed to ensure long-term security for stored deep underground. Long-term integrity all wells drilled these fields must be ensured order successfully keep decades/centuries future. Well often defined as ability contain fluids without...

Abstract CO2 sequestration is a process for eternity with possibility of zero-degree failure. One the key components Sequestration Project to have site-specific, risk-based and adaptive Monitoring, Measurement Verification (MMV) plan. The storage site has been studied thoroughly understood be inherently safe sequestration. However, it incumbent on operator manage minimize risks. MMV planning critical along geological selection, transportation process. Geological evaluation study suggests...

Summary Formation-resistivity measurements in boreholes require accurate knowledge about the electrical properties of drilling fluid to exclude any measurement misinterpretations. For many applications, oil-based mud is preferred because that include excellent shale stability, corrosion inhibition, lubricity, reusability, resistance contamination, and higher rate penetration. Although resistivity generally high, it depends on parameters. We studied dielectric permittivity muds as a function...

Abstract Depleted hydrocarbon reservoirs are considered inherently safe for carbon sequestration, but high well density penetrating the CO2 storage reservoir could compromise containment performance in a carbon, capture & sequestration (CCS) project. Based on available data, it is crucial to understand age of well, materials used wellbore construction, cement quality, barriers performance, and integrity. A risk management methodology can be incorporated evaluate primary secondary...

Abstract Ensuring long-term integrity of existing plugged and abandoned (P&A) active wells that penetrated the selected CO2 storage reservoir is key to reduce leakage risks along wellpath for containment sustainability. Restoring well integrity, when required, will safeguard decades. Well often defined as ability contain fluids with minimum nil throughout project lifecycle. With a view develop depleted gas fields sites in offshore Sarawak, it vital determine complexity involved restoring...

Abstract With the increasing need to reduce carbon emissions in industry as hydrocarbon demand continues rise, understanding and managing uncertainties a Carbon Capture Storage (CCS) project is essential. Storing dioxide (CO2) underground requires site that can effectively contain injected CO2 prevent any leaks. Potential routes through which may leak include: failed caprock, faults, injection wells, or legacy wells field. The could pose leakage risks if integrity of barriers not suitable...

Abstract Carbon sequestration is the process of capturing and storage atmospheric carbon dioxide. The objective any project to store CO2 safely for hundreds or thousands years with a goal reducing global climate change. A depleted hydrocarbon reservoir one potential sites being considered long-term storage. dynamic, geochemical, geomechanics changes that occur during injection are inter-related. For example, when injected causes dissolution rock, on hand, porosity increases while rock...

Abstract The emerging global climate change policies have necessitated the strategic need for prudent management of produced contaminants and, with cold flaring being no more best option, Carbon Capture Utilization & Storage (CCUS) technology provides opportunity development high CO2 contaminant fields. A typical sequestration project comprises capturing by separating from hydrocarbons followed injection into deep geological formations long term storage. While ofCO2 may continue over...

Renewable resources currently play an important role in the world and geothermal energy is one of them. It known to be clean reliable sources energy. Although importance has been realized for a long time, its exploitation still far away due certain reasons, which are emphasized this article. This article gives overview about development worldwide, identifies barriers that hinder energy, proposes instruments overcome barriers, and, finally, some recommendations faster China.

Abstract Maximizing drilling performance by pushing the limits of tools is key to reduce overall cost. The interplay complex parameters such as lithology, parameters, experience, downhole tool reliability, and operational process help us identify limiting factors. Drilling dysfunction could deteriorate reliability including causing damaged bits, failure electronic components, torsional fatigue drillstring, over-torqued connections, etc. Precise modeling dynamic responses a bottomhole...

Abstract CO2 sequestration in depleted carbonate reservoir stipulate incorporation of comprehensive and trailblazing monitoring technologies. 4D time-lapse seismic is sine qua non for Monitoring, Measurement Verification (MMV) planning to demonstrate the migration plume within geological storage. An ingenious, adaptive site specific MMV plan paramount minimize possible subsurface project integrity risks. Integration dynamic simulation with forward modeling aggrandize capabilities projects....

An enormous number of pressure–volume–temperature (PVT) correlations have been developed over the years for different types hydrocarbon systems. However, accuracy these is often limited due to crude oil compositional difference, impurities, etc., from geographical locations. The literature has revealed that predictive capabilities previously PVT Nigerian system are still associated with large errors and as accurate determination properties uncompromising, it great importance develop new...

Abstract A depleted gas field situated in offshore Sarawak has been identified by PETRONAS as a potential CO2 storage development site. As part of the monitoring program, seepage risk and impact on marine environment needs to be investigated predicted. This study focuses understanding environmental risks associated with at within 140 m water column through methods numerical modelling. Leakage scenarios involving existing plugged abandoned (P&A) wells leakage pathways were modelled rates...

Abstract CO2 sequestration is a process for eternity with possibility of zero-degree failure. Monitoring, Measurement and Verification (MMV) planning crucial along geological site selection, transportation injection process. Several formations have been evaluated in the past potential storage which divulges containment capacity identified large, depleted gas reservoirs as well long term conformance. Offshore environment makes MMV plan challenging demands rigorous integration monitoring...

Abstract Oil & Gas Operators are focusing on zero carbon emission to comply with government's changing rules and regulations, which play an important role in the encouragement of capture initiatives. This paper aims give insights world's first offshore CCS project carbonate reservoir, where wells will be drilled inject CO2, store produced CO2 from contaminated fields. To safeguard storage containment, integrity all needs scrutinized. Development identified depleted gas field more than 40...

Summary Gas injection has been evaluated and implemented in a middle-eastern oil field as water alternating gas or WAG. It seen that WAG is economically viable robust EOR method for areas of the which are homogenous do not pose conformance issues. However, application heterogeneous parts widely attempted due to issues like an early breakthrough unfavorable sweep efficiency typically associated with reservoirs. Hence it was decided design foam assisted system can provide required control...

Abstract The Malay Basin is located at the southern part of Gulf Thailand between Vietnam and Peninsular Malaysia. produced gases in basin contain varying amounts CO2. High CO2 concentrations (>50 mol%) are, typical reservoirs, mainly derived from inorganic sources. In order to develop these fields with reduced or zero greenhouse gas emissions for sustainability development, some geological storage sites were screened store future production. One important saline aquifer. There are...

Abstract Storing CO2 in geological formations is gaining greater importance as various companies start transitioning towards a carbon neutral future. storage depleted hydrocarbon reservoirs and saline aquifers considered an effective secure option to reduce atmospheric CO2. Once underground, four different mechanisms keep the supercritical securely stored. The mechanisms, increasing order of security are, 1. Structural/stratigraphic trapping, 2. Residual 3. Solubility 4. Mineral trapping....

Abstract Carbon Capture & Storage (CCS) has globally been recognized as the way forward to manage reduce Green House Gas (GHG) emissions. However, for every geological CO2 storage project there are two inherent yet independent risks: loss of containment and conformance. For early detection mitigation these risks, a robust Monitoring, Measurement Verification (MMV) plan is supreme importance. While several matured, newly developed under trial monitoring technologies addressing various...