18073091. Sweep Efficiency of Carbon Dioxide Gas Injection simplified abstract (SAUDI ARABIAN OIL COMPANY)

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Sweep Efficiency of Carbon Dioxide Gas Injection

Organization Name

SAUDI ARABIAN OIL COMPANY

Inventor(s)

Zuhair Ali Alyousif of Saihat (SA)

Subhash Chandrabose Ayirala of Dhahran (SA)

Sunil Kokal of Dhahran (SA)

Ali Abdallah Al-yousef of Dhahran (SA)

Sweep Efficiency of Carbon Dioxide Gas Injection - A simplified explanation of the abstract

This abstract first appeared for US patent application 18073091 titled 'Sweep Efficiency of Carbon Dioxide Gas Injection

The patent application describes methods and systems for extracting oil from a subsurface reservoir using a combination of horizontal production and injection wells, along with a gas mixture injection process.

  • Drilling a horizontal production well and a horizontal injection well into the subsurface reservoir.
  • Mixing carbon dioxide and a second gas to create a gas mixture with a higher density than the reservoir fluids.
  • Injecting the gas mixture into the subsurface formation through the horizontal injection well.
  • Producing fluid from the subsurface reservoir through the horizontal production well.

Potential Applications: - Enhanced oil recovery in subsurface reservoirs. - Carbon dioxide sequestration and storage. - Improving oil extraction efficiency in mature oil fields.

Problems Solved: - Enhancing oil recovery rates. - Minimizing environmental impact by sequestering carbon dioxide. - Maximizing the utilization of existing oil wells.

Benefits: - Increased oil production. - Reduced environmental footprint. - Enhanced reservoir management.

Commercial Applications: Title: Enhanced Oil Recovery Technology for Sustainable Energy Production This technology can be used in the oil and gas industry for improving oil recovery rates and reducing environmental impact. It has the potential to be a game-changer in the field of oil extraction.

Prior Art: There may be prior art related to gas injection techniques in oil recovery processes, as well as methods for horizontal drilling in subsurface reservoirs.

Frequently Updated Research: Stay updated on the latest advancements in gas injection technologies for oil recovery and carbon sequestration to enhance the efficiency of this method.

Questions about Oil Extraction Technology:

Question 1: How does the gas mixture injection process improve oil recovery rates? Answer: The gas mixture injected into the subsurface reservoir helps displace oil towards the production well, increasing recovery rates.

Question 2: What are the environmental benefits of using carbon dioxide in the extraction process? Answer: By sequestering carbon dioxide underground, this technology helps reduce greenhouse gas emissions and contributes to environmental sustainability.


Original Abstract Submitted

Methods and systems for producing oil from a subsurface reservoir include drilling a horizontal production well into the subsurface reservoir and drilling a horizontal injection well into the subsurface reservoir below the horizontal production well. Carbon dioxide and a second gas are mixed to form a gas mixture with a density more than a density of reservoir fluids between the horizontal production well and the horizontal injection well. The gas mixture is injected into the subsurface formation through the horizontal injection well and fluid is produced from the subsurface reservoir through the horizontal production well.