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| 单井缝洞系统注水对含水率的影响分析 | |
| 引用本文： | 熊伟,常宝华,潘懋,王秋丽,胡志明.单井缝洞系统注水对含水率的影响分析[J].断块油气田,2011,18(4):479-481. |
| 作者姓名： | 熊伟 常宝华 潘懋 王秋丽 胡志明 |
| 作者单位： | 1. 北京大学地球与空间科学学院,北京,100871;中国石油勘探开发研究院廊坊分院,河北,廊坊,065007 2. 中国科学院渗流流体力学研究所,河北,廊坊,065007 3. 北京大学地球与空间科学学院,北京,100871 4. 中国石油华北油田分公司勘探开发研究院,河北,任丘,062552 5. 中国石油勘探开发研究院廊坊分院,河北,廊坊,065007 |
| 基金项目： | 国家重点基础研究发展计划(973)项目"碳酸盐岩缝洞型油藏开发基础研究"，国家白然科学基金项目"缝洞型碳酸盐岩油藏溶洞参数识别方法研究" |
| 摘 要： | 对塔河油田和塔里木油田缝洞型油藏单井缝洞系统部分油井注水引起含水率大幅升高的现象进行研究,分析了注水对油井含水率的影响机理.通过分析储层特征,简化单井缝洞系统,并结合理论计算分析来认识缝洞系统内油水界面的变化规律,结果表明:油井见水后对单井缝洞系统进行注水替油会对油井含水率和产油量有较大的影响,即油水界面距离井底较近的... |
| 关 键 词： | 缝洞 含水率 注水 碳酸盐岩 溶洞 |
Impact of water injection on water content in single well fractured-vuggy system |
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| Xiong Wei,Chang Baohua,Pan Mao,Wang Qiuli,Hu Zhiming.Impact of water injection on water content in single well fractured-vuggy system[J].Fault-Block Oil & Gas Field,2011,18(4):479-481. | |
| Authors: | Xiong Wei Chang Baohua Pan Mao Wang Qiuli Hu Zhiming |
| Affiliation: | 1.School of Earth and Space Sciences,Peking University,Beijing 100871,China;2.Langfang Branch of Research Institute of Petroleum Exploration and Development,PetroChina,Langfang 065007,China;3.Institute of Porous Fluid Mechanics,Chinese Academy of Sciences,Langfang 065007,China;4.Research Institute of Petroleum Exploration and Development,Huabei Oilfield Company,PetroChina,Renqiu 062552,China) |
| Abstract: | Aiming at the sharp rise of water content caused by water injection in the partial oil wells of single well fractured-vuggy system in the fractured-vuggy reservoir of Tahe Oilfield and Tarim Oilfield,the impact mechanism of water injection on water content of oil well is analyzed.Change rules of oil-water contact for fractured-vuggy system is identified by the analysis of reservoir characteristics and the simplification of single well fractured-vuggy system,combined with theoretical calculation.The study result shows that the replacing oil with water injection in single well fractured-vuggy system will affect the water content and production rate after water breakthrough of oil well.When the oil-water contact is close to bottom hole,water injection will result in the sharp rise of water content,even waterflooding.The reason is that the oil-water contact position is close to bottom hole in fractured-vuggy system,and water injection will raise the oil-water contact,which create the oil-water contact to reach the bottom hole and make the water content of oil well sharply rise.So it is recommended that the analysis of oil-water contact and the remaining reserves calculation and economic evaluation in the fractured-vuggy units should be carried out,and the sidetrack drilling or gas injection production should be properly adopted. |
| Keywords: | fractured vuggy water content water injection carbonate rock cave |
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