Pathak, Varun (Computer Modelling Group Ltd.) | Hamedi, Yousef (Computer Modelling Group Ltd.) | Martinez, Oscar (Computer Modelling Group Ltd.) | Vermeulen, Stephen (Computer Modelling Group Ltd.) | Kumar, Anjani (Computer Modelling Group Ltd.)
Integrated production systems models are very valuable for predicting the performance of complex systems containing multiple reservoirs and networks. In addition, the value of quantifying uncertainty in reservoirs and production systems is immense as it can build confidence in operational investments. However, traditionally it has been extremely tedious to incorporate uncertainty assessments in the context of integrated production systems modelling. This has been addressed in the current work with the help of a case study.
In the current work, a complex integrated production systems model is presented - from Pre-Salt carbonates reservoir offshore of Brazil. The model includes multiple reservoirs with unique fluid types and complex fluid blending in the production network, multiphase and thermal effects in flowlines and risers, gas separation, gas processing, gas compression, and re-injection for either pressure maintenance or for miscible EOR.
The operational strategies, well placement, and well and network configurations are often based on a single geological realization. With the case study presented in this paper, an integrated way of quantifying geological uncertainty has been presented. A new multi-user, multi-disciplinary tool was used for this study that removed any discontinuities and inconsistencies that typically occur in such projects when multiple standalone tools are used for individual tasks. When quantifying uncertainty on production, the dependence on a single realization was eliminated as uncertain parameters were identified and used for creating robust probabilistic forecasts. Probability distribution curves were generated to represent the uncertainty in overall production from this asset, and the risk associated with operational investments was minimized.
Typically, an end-to-end uncertainty assessment is missing from the traditional Integrated Modelling workflows. With this new approach, the challenge of achieving a truly integrated uncertainty assessment for integrated reservoir and production models has been addressed successfully.
Recently, Nigeria's Department of Petroleum Resources issued guidelines in furtherance of the objectives of the Flare Gas (Prevention of Waste and Pollution) Regulations, 2018. Nigerian militants threatened on 17 January to attack offshore oil facilities within days, raising fears of a repeat of a 2016 wave of violence that helped push Africa’s biggest economy into recession. Is Crude Oil Killing Children in Nigeria? A recent report by a group of scientists at the University of St. Gallen in Switzerland found that children born within 10 km of an oil spill were twice as likely to die in their first month. The Nigerian Petroleum Industry Bill possibly ranks as No. 1 by a wide margin among the bills that have spent the most time with the legislature.
State health officials say they will review whether exemptions for the fossil fuels industry violates the Clean Air Act. Colorado lawmakers approved a bill overhauling regulations governing the state’s robust oil and gas industry to prioritize public health and safety, over opposition by Republicans and industry groups. Oregon has permanently banned offshore drilling in the midst of a federal push to open 90% of federal waters to oil exploration. A federal judge in Alaska has ruled an executive order by President Donald Trump allowing offshore oil drilling of tens of millions of acres in the Arctic Ocean is "unlawful and invalid." The US Environmental Protection Agency plans to issue a rule regulating methane emissions later this year, administrator Andrew Wheeler said.
The announcement comes 7 months after the two received permission to begin the tendering process for the project offshore Nigeria, which is expected to carry a peak production of 225,000 BOPD by 2022. The company will manage the position-keeping for the deepwater project offshore Nigeria, which is scheduled to start production later this year. KBR will head a joint venture with TechnipFMC and JGC to provide a basic design package and EPC bid for the Bonny Island expansion. The insights present an opportunity for significant operating and capital costs reduction. With these synopses of technical papers from OnePetro you can join the author for conferences in Kuala Lumpur, New Orleans, and Lagos, all while sitting in your chairs and without any travel expenses.
Noble’s first row of wells in its massive Mustang project is helping increase the operator’s DJ Basin output, and similar results are soon expected in the Delaware Basin. Devon Energy will be getting simpler and smaller by selling two no-growth assets—gas acreage in the Barnett Shale in Texas and oil sand operations in Canada. Its future is staked on growing oil production in the Permian’s Delaware Basin and three other unconventional oil plays. The Oklahoma City independent has a new-look portfolio and new operational and financial priorities. And now it has enlisted an energy research firm to leverage advanced analytics and machine learning to help get the most out of its assets.
The state-owned firm is looking within its home country, around Southeast Asia, and to the Americas—including shale—in an effort to maintain its forecast average yearly production of 1.7 million BOE/D over the next 5 years. The financial effects of the downturn are set to last at least a decade—which puts the industry almost at the halfway point. Petrobras and Shell have brought online the Lula field’s seventh FPSO as the firms continue to ramp up production from the pre-salt Santos Basin. The national oil company’s aim to lift oil and gas production and reserves over the next few years will rely on growth from big international projects, including those in Nigeria, Guyana, and the US. A new report predicts that US output will rise to a new record high of 12.1 million B/D in 2020.
After a long cooling off period, this dry-gas shale play is once again red hot. The state-owned firm is looking within its home country, around Southeast Asia, and to the Americas—including shale—in an effort to maintain its forecast average yearly production of 1.7 million BOE/D over the next 5 years. Encana CEO Doug Suttles assures that shale executives are acutely aware of the parent-child well challenge, and he doesn’t think it’s “a big threat” to the sector. The US majors plan to produce around 1 million BOE/D each from the basin, which has become a primary focus of their upstream operations. This industry is one often considered reactive and overly tradition-bound.
The operator piloted a new well-completion design combining inflow-control valves (ICVs) in the shallow reservoir and inflow-control devices (ICDs) in the deeper reservoir, both deployed in a water-injector well for the first time in the company’s experience. In this paper, the authors describe a project to design, field trial, and qualify an alternative solution for real-time monitoring of the oil rim in carbonate reservoirs that overcomes these disadvantages. The authors detail the development of a technique based on surface-to-borehole controlled-source electromagnetics (CSEM), which exploits the large contrast in resistivity between injected water and oil to derive 3D resistivity distributions, proportional to saturations, in the reservoir. This industry is one often considered reactive and overly tradition-bound. These new technologies, however—and, more importantly, the drive of these researchers to harness their capabilities—prove that petroleum engineers remain at the forefront of innovation and discovery.
The French major is racking up barrels of deepwater production as part of its large-scale West African push. Since 2007, an operator in Nigeria has registered a significant increase of oil-spill events caused by sabotage and oil-theft activities. The technology presented here allows detecting and locating leaks taking place at a distance from the sensor of up to 35 km.
The French major is racking up barrels of deepwater production as part of its large-scale West African push. Despite a trend toward renewables and low-carbon energy production among European majors, Total remains wholeheartedly committed to deepwater production. West Africa has seen a significant shift in drilling activity, mainly in deep water. Many of the major international operators are carrying out important exploration-and-development activities there. The subject field in deep water off West Africa provides an opportunity to perform a review of how well the reservoir-performance predictions made at project funding matched with the final actual field performance.