| 摘要: |
| 根据传热学理论，考虑注汽层间热干扰的影响，建立用于描述多IJ油藏双S注汽时层间热干扰的热传递数学 模呦.在MamU-VoIek笮U油藏蒸汽驱热效率i|算方法的基础上推导多W油藏的热效率计算公式，运用拉普拉斯变 换和Stehfest数值反演方法进行求解，分析隔U厚度对层间热干扰和汴汽热效率的影响。结果表明:增加井底蒸汽 的潜热比有利于提高注汽层的热效率;与中层油藏相比,由丁U间热F扰作用，多层油藏双U注汽的热效率有明敁 提高;隔层厚度越小，&间热十扰作用越强,注汽热效率越高。 |
| 关键词: 油藏 多层稠油油藏 蒸汽驱 热效率 热干扰 |
| DOI：10.3969/j.issn.1673-5005.2012.02.024 |
| 分类号:TE 345 |
| 基金项目: |
|
| Calculation model of heat efficiency of steam flooding in multilayer heavy-oil reservoir based on heat interaction |
|
DU Dian-fa1,2,HOU Jia-gen1,SHI Yao-li3,LIU Ru3
|
|
(1. College of Petroleum Engineering in China University of Petroleum t Beijing 102249, China;2. School of Petroleum Engineering in China University of Petroleum，Qingdao 266580，China ;3. Xinjiang Oilfield Company, PetroChina, Karamay 834000，China)
|
| Abstract: |
| Arcording to the thermal equilibrium theory，a model for predinting the heat transfer between the injection layer and non-injection layer was established considering the heat interaction effect. Moreover, a formula calculating heat efficiency in multilayer reservoir was put forward based on the Mancfl-Volek model, and i^apiace analysis transform ami Slehfest numerical inversion were used to calculate the model. And the effects of interlayer thickness on heat interaction and heat efficiency were analyzed. The results show that the more the sandface steam latent heat ratio, the higher the heat eHlrieney of the injection Jayer. Compared with the single layer reservoir, the heat inrleraction imposes significant effect on the heat efficiency, and the thinner the center layer, the stronger the heat interaction, and the higher the heat efficiency. |
| Key words: reservoirs multilayer heavy-oil reservoir steam flood heat efficiency heat interaction |
