cabeça de martelo escreveu: Dom Jan 05, 2025 4:36 pm
Eu consigo desmontar item a item dessa lista.
Para começar:
Can you explain how oil wells capped off in the 60's and 70's as "played out", are now being reopened and discovered to be full of oil again?
They never recover 100% of the oil from an oil well. The recovery rate depends on the characteristics of the formation. On primary recover, where they just pump oil out of the ground, they typically recover 5-15% of the oil in place. I
If the price of oil goes up, it may become economic to recover more oil from the well using enhanced recovery techniques, or the economics may just become positive again, and they will put the well back on production.
If they put it on secondary recover, such as injecting water or carbon dioxide into the formation to move the oil toward the producing wells, they c
That fact has turned the old way of thinking on it’s head. It was always thought oil deposits were stationary and sealed, but now we’re finding out it comes from somewhere else. Shell’s Mars TLP was suppose to finished a decade ago, instead they built another TLP to produce from the same block (I think it’s called Olympus) because the oil keeps coming.
The other answer from Philip
Oil reserves are never brought to the point that their ‘not full’. Oil is released by it’s own pressure, as the pressure reduces less oil can be produced. Even when the well is plugged and abandoned there’s till a hell
From our Aiteo oil block OML29 in Nigeria is located the first oil well in the country drilled in 1956 and now capped, see signboard and Christmas tree below. Our reservoir analysis indicate potential daily production of more than many marginal wells. Wells are abandoned if output is not in commercial quantities and it does not often mean that there is no oil left. In addition, since the same process that produced the oil is still ongoing more oil would accumulate. And if prices are high enough the wells are reopened and serviced. Ps: these days there are smarter ways to get more oil out as we
Why can't a capped oil well be reused?
When will we run out of oil? What will happen then?
What happens to an oil field after the oil is pumped out? Does it just leave a void/cavern? Isn't it today to leave that because it could collapse?
How do oil wells replenish themselves?
In the 1970's we were told that the world’s oil supply would be gone by 2030. What happen to that estimate?
Sure. In those days, the oil was still relatively easy to harvest. So when a producing well dropped below 80% or 75% of it’s original output, they’d just cap it. New technologies like fracking or using waste CO2 gas to charge up old wells have also become economical as the easier to exploit fields pay out and stop producing [as much].
The phenomenon of reopening oil wells that were capped off in the 1960s and 1970s due to being considered "played out" is primarily attributed to advancements in technology and changes in market dynamics. Here are some key factors contributing to this trend:
1. Technological Advances
Improved Drilling Techniques: Technologies such as horizontal drilling and hydraulic fracturing (fracking) have significantly enhanced the ability to extract oil from previously inaccessible or marginally productive reserves. These methods can tap into oil formations that older vertical wells could not effectively exploit.
Enhanced Recovery Methods: Techniques such as water flooding, gas injection, and steam injection have improved the recovery rates of oil from older wells. These methods can mobilize oil that remained trapped in reservoirs after primary extraction methods were exhausted.
2. Better Understanding of Reservoirs
Geological Insights: Advances in geological modeling and seismic imaging have provided better insights into the structure and behavior of oil reservoirs. This has led to a reevaluation of previously capped wells and the discovery that they may still contain significant amounts of recoverable oil.
Reservoir Management: Improved reservoir management practices allow for more efficient extraction and recovery strategies that were not available or understood in the past.
3. Economic Factors
Rising Oil Prices: As global oil prices fluctuate, previously uneconomical fields can become profitable to reopen. Higher prices can justify the costs associated with restoring and operating older wells.
Increased Demand: Growing global energy demands can lead companies to reassess older fields as viable sources of supply, especially in a context where new discoveries are becoming rarer.
4. Regulatory and Environmental Considerations
Policy Changes: Changes in regulations and incentives for energy production can also motivate companies to reopen old wells. These may include tax incentives, subsidies for domestic oil production, or regulatory relief.
Environmental Assessments: As environmental regulations evolve, companies may find more environmentally friendly ways to extract oil, allowing them to consider reopening previously capped wells.
5. Sustainability and Energy Transition
Focus on Domestic Energy: In some regions, there's a push for energy independence, leading to a renewed interest in domestic oil production, including tapping into older wells.
Transition Strategies: Some companies are looking to balance traditional oil production with investments in renewable energy, making it viable to extract oil from existing wells while transitioning to more sustainable practices.
Conclusion
The reopening of oil wells that were previously deemed "played out" reflects a combination of technological innovation, economic conditions, and a deeper understanding of geological formations. As the energy landscape continues to evolve, it's likely that more such wells will be evaluated and potentially brought back into production.
Que interessante, ninguém me enfiou nada disso e não peguei sequer um leve resfriado ao longo da década; haverá algum nexo causal ou será apenas mais uma das inúmeras coincidências que ocorrem o tempo todo atualmente?
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