A5034798594- Drilling and Well Engineering
- Oil and Gas Production Techniques
- Reservoir Engineering and Simulation Methods
- Tunneling and Rock Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Innovations in Concrete and Construction Materials
- Advanced machining processes and optimization
- Concrete and Cement Materials Research
- Minerals Flotation and Separation Techniques
- Enhanced Oil Recovery Techniques
- Occupational Health and Safety Research
- CO2 Sequestration and Geologic Interactions
- Probabilistic and Robust Engineering Design
- Belt Conveyor Systems Engineering
- Material Properties and Failure Mechanisms
- Fatigue and fracture mechanics
- Pickering emulsions and particle stabilization
- Particle accelerators and beam dynamics
- Cardiac, Anesthesia and Surgical Outcomes
- Petroleum Processing and Analysis
Petrobras (Brazil)
2022-2024
Universidade Federal de Santa Catarina
2023
Pontifical Catholic University of Rio de Janeiro
2023
Abstract Drilling wells with TOT-3P design consists of optimizing (reducing) the steps well construction. takes place in 3 sections (3P=3 phases) and completion, sand containment screen plus production column (upper lower), is performed a single trip (TOT = True One Trip). The construction only possible deepening casing second section capacity this to have function surface production. Some challenges stand out project, such as gain inclination, cleaning stability open riserless phase,...
Abstract In the past 18 years, since first discovery, evolution of drilling technologies and techniques applied in development Petrobras’ fields Brazilian pre-salt have overcome many challenges, considering well design, performance, wellhead systems, cementing conductor installation. The improvements terms integrity, as construction time cost, led to better economical outcome from this area that produces around 80% oil operator. Pre-Salt, Petrobras has drilled over four hundred wells,...
Abstract The design of cement sheaths in offshore oil wells is usually performed following a deterministic approach, which doesn’t consider explicitly the variability and uncertainties material properties loads. Cement can vary, for instance, due to intrinsic nature cementation process. Load are attributed random character loading environment or inadequate knowledge physical phenomena associated with them. objective this work present reliability-based methodology designing sheaths, uses...
Objective: This study investigates the impact of numerical simulations on cement integrity during drilling deepwater top holes through salt formations. The primary aim is to enhance well containment analysis by optimizing sheath quality.Approach: We begin with a comprehensive literature review, examining industry practices for and cementing in zones. By analyzing existing literature, we gain insights into best challenges related wells. Next, leverage field data from hundreds wells Santos...
Current technologies have not been able to completely remove all the oil from reservoirs, which are often abandoned with a considerable amount of remaining in place. To improve extraction nanotechnology has recently gained an important role enhanced recovery, since nanoparticles unique characteristics that can efficiency recovery. This study reviews articles published this field during past 5 years, highlighting most for applications recovery concerning different synthesis methods used their...
Abstract When a surface casing is set in front of salt zones, challenges such as hole enlargement and dissolution need to be addressed the cementing design. This study compares several possible solutions for drilling deepwater top with exposed formation, general objective provide valuable insight on relevance cement integrity well containment analysis wells. Several studies reported literature have evaluated different approaches that industry follows sections when formations are present. In...
Abstract The assessment of annulus cement barriers is critical in well Plug and Abandonment (P&A) planning execution. For wells with 10 to 30+ producing years, the data from construction may be unavailable, incomplete, or not fully compliant current industry good cementing practices. This case study presents a methodology for assessing qualification credibility annular hydraulic isolation, highlighting challenges involved process. engineering workflow starts by mining regarding casing...
Abstract Oil & Gas E&P operations are known for its financial and operational risks. In regard to environmental regulations, an O&G well must comply not only with the restrictions life, but also those conceived decommissioned life. One such restriction involves guaranteeing that different zones kept isolated from each other after is decommissioned, i.e., abandoned. of various techniques deployed in these cases Cement Bullheading, consisting pumping cement down well, so plugs...
Abstract Defining acceptable criteria for primary cementing operations has always been challenging. When unconventional events or conditions occur during the cement job, potential impact on future well integrity shall be evaluated before proceeding further construction. This study aims to describe practical approaches evaluating zonal isolation based design robustness and post job signature when such are present in Brazilian deepwater wells. A large database casing scenarios fields provides...
Abstract In offshore wells, cement sheaths are responsible for isolating the casing from formation, protecting latter corrosion, and preventing fluid migrations that can cause severe blowouts in extreme situations. The most usual methodology applied structural evaluation of is deterministic, where characteristic values employed to model material properties loads. At end analysis, stresses (or any other derived parameter) compared allowable limits. Although this design relatively simple, it...
Abstract This article focuses on the development and characterization of one-part rock-based geopolymer slurries utilizing Brazilian rock precursors for well construction plugging abandonment applications (P&A). The study presents fluid-state solid-state properties these geopolymers, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) to understand precursors' microstructure reaction level. effect temperature pressure compressive strength was investigated. By altering parameters,...