Advanced Oil Steam Pipeline Aerogel Insulation Program
1. Energy-saving background of aerogels for heavy oil thermal injection pipelines
Heavy oil thermal recovery, that is, heavy oil reservoir steam stimulation and so on, has become a widely used method for heavy oil extraction in major oil fields in China such as Liaohe Oilfield and Xinjiang Oilfield due to its simple process technology, rapid production increase, and good economic benefits. method.
Heavy oil thermal recovery requires large amounts of high-temperature and high-pressure steam, and the fuel, water, and electricity required to produce such steam are also inflated. Therefore, the hot-injection system is the main system for energy consumption in the heavy oil recovery process. The consumption accounts for about 80% of the total energy consumption of heavy oil extraction, and the hot injection system generally does not work intermittently for 24 hours, and the energy consumption is huge. Therefore, the construction of a conservation-type thermal injection system is of great significance for energy conservation and emission reduction, cost reduction, and environmental protection.
2. The status quo of traditional thermal insulation of heavy oil injection steam injection pipeline
a. The insulation layer collapsed, resulting in the phenomenon of thin upper and lower space, resulting in a large amount of heat loss;
b. The insulation layer is not waterproof, causing serious corrosion of the pipeline;
c. Due to the inconvenience of the traditional insulation materials, the valves, joints, and pipe supports have no insulation and heat loss.
d. The service life is relatively short and the maintenance cost is high.
3, heavy oil thermal recovery injection line aerogel energy-saving program
a、Insulation thickness: aerogel blanket thickness δ16mm, composite aluminum magnesium magnesium waterproof insulation shell thickness δ60mm; protective layer: aluminum alloy plate δ0.5mm; surface temperature: ≤16.5°C (ambient temperature 11°C)
b. The energy-saving bracket isolates the pipeline from the bracket and prevents the heat loss of the bracket.
4. Advantages of aerogel energy-saving solutions
a、Good insulation effect, a lot of surface area reduction, low surface temperature, after detection, using aerogel felt reflective insulation structure and energy-saving bracket, heat loss from the original 149.54w/m to 101.3w/m, energy-saving rate 32.2%.
b. Aerogel felt has long service life and reduces maintenance costs
c. The aerogel mat has strong hydrophobicity, which can prevent pipeline corrosion and improve production safety.
d, aerogel felt can be arbitrarily cut, according to type package care, construction loss, no pollution, easy construction
e. The aerogel insulation structure improves sealing performance and reduces radiative heat transfer
f. Energy-saving brackets to insulate the heat transfer between the steam injection pipe and the metal bracket
Aerogel insulation program installation diagram
