The paper discusses the feasibility study approach of polymer flooding enhanced oil recovery. This work is focused on understanding and quantifying key aspects of polymer flooding and design parameter optimization case. A synthetic reservoir simulation model was employed for the study.
The first stage is to identify and understand key factors that have most significant impact to polymer flooding response. There are eight parameters that are considered in the analysis, such as polymer concentration, polymer thermal degradation, polymer injection duration, and polymer-rock properties (adsorption, residual resistance factor, etc.). The impact of each parameter to oil recovery response was sensitized with its low, mid, and high values. The difference of high to low oil recovery output for all parameters was ranked to determine their significance levels. The top three parameters obtained from the sensitivity analysis are polymer injection duration, thermal degradation, and polymer concentration. Sensitivity cases of polymer injectivity and thermal degradation effects were covered in this work.
The second stage is to determine optimum design parameters of polymer flooding. The most significant parameters from the sensitivity analysis results were considered for further optimization. Three parameters that were selected for design optimization include polymer injection duration, polymer concentration, and well spacing. An optimization workflow with simplex algorithm is linked with a reservoir simulator to generate optimization cases by varying values of optimized parameters. The optimization iteration stops when the maximum value of the objective function, which is the net revenue, is reached. The optimization cycle was done for rock permeability of 500 md and 1000 md.
For a low rock permeability reservoir, the well spacing should be short and a lower polymer concentration is sufficient to provide a good response, in addition to avoiding potential injectivity problem. There should be minimum injectivity problem for reservoir with permeability above 1000 md. It is very important to apply polymer thermal degradation in the simulation model to avoid an optimistic performance prediction. The sensitivity analysis results provide a good understanding on the significance impact of parameters controlling polymer injection response and potential challenges. The optimization approach used in the study aids in investigating many optimization scenario within a short period of time.
These balls have the potential to alter how pipeline inspections are done, and a consortium of pipeline operators and industry experts in North Dakota is examining just how well this emerging technology can handle the small-diameter pipelines in the area. Scheduled for startup in 2022, the FPSO is expected to produce up to 220,000 BOPD on the development offshore Guyana. Liza is one of eight discoveries ExxonMobil has made in area. The Hess-operated field, which drew first oil in January, is expected to produce 80,000 BOPD as production ramps up this year.
The Golden Pass LNG export project got the go-ahead for a $1-billion liquefaction development. Baker Hughes will supply turbomachinery equipment for three LNG trains. Startup is expected in 2024. Japan’s SODECO and India’s ONGC Videsh are joining the consortium on the LNG plant, which will be carried out within the framework of the Sakhalin-1 hydrocarbon project in the Okhotsk Sea. Scheduled for startup in 2022, the FPSO is expected to produce up to 220,000 BOPD on the development offshore Guyana.
ExxonMobil’s hot streak of offshore discoveries have sparked investor interest in the Guyana-Suriname basin. How did the company get there, and why do industry representatives feel optimistic about future deepwater prospects in the region? In the 30 years of operations on Suriname’s Tambaredjo field, the prime mechanism for lifting the 15.6 °API crude to surface has been that of progressing cavity pumps (PCPs).
ExxonMobil continues to make major oil discoveries offshore Guyana, a country that today produces no oil. The just-announced Turbot-1 well is the company’s fifth discovery in Guyana’s waters in a little more than 2 years. Applying an economic analysis for Trinidad and Tobago's deepwater gas fiscal regime, results were calculated for various price scenarios to identify a workable strategy for development of offshore resources.
The chief upstream strategist of IHS Markit said in a recent presentation that oil exploration must improve its ability to deliver value and better communicate that value to the financial community. New ways of thinking about exploration opportunities are needed. Total just strengthened its presence in United States deepwater plays through an acquisition from Samson that gives the French company a 12.5% interest in blocks covering the Anchor discovery, one of the most significant recent finds in the Gulf of Mexico. The just-announced Turbot-1 well is the company’s fifth discovery in Guyana’s waters in a little more than 2 years. OTC panelists were excited at the potential of deepwater exploration offshore Mexico and believe that opportunities there could eventually drive a big new wave of activity.
The French major is racking up barrels of deepwater production as part of its large-scale West African push. Oil prices have fallen since early October in lockstep with the plunge in 2014. But this time oil companies appear better able to deal with a tough situation. Chevron, ConocoPhillips, Equinor, Shell, and Total are among nine firms looking to explore the Pearl River Mouth Basin. Vaca Muerta production is on the upswing.
Subsea Production Systems—Will 2019 Be a Tipping Point? The past year ended with a surge of subsea tree awards as E&P operators locked in lower supply-chain cost. Will demand continue to grow in 2019 and allow subsea OEMs to build backlogs and take back pricing power? Scheduled for startup in 2022, the FPSO is expected to produce up to 220,000 BOPD on the development offshore Guyana. Liza is one of eight discoveries ExxonMobil has made in area.
The second round will offer 19 offshore blocks clustered in five zones to continue natural gas development in the eastern Mediterranean’s Levant 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.
They share what motivated them to start their own company and the inspiration to pursue entrepreneurship. The attention of the energy industry has focused in recent years on the Permian Basin. But as the Permian gathers the attention, another aging oil field is making its own comeback. Guyana’s oil and gas prospects have the potential to transform both the country and the international oil companies developing these resources. First production from Guyana’s offshore Liza field is expected in 2020, and full development could yield 500,000 barrels per day.