流线模型模拟优选注水井裂缝参数
Optimization of Fracturing Parameters of Water Injection Well by Using Streamline Model
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- 引用格式:
-
刘哲,郭建春,曾凡辉.流线模型模拟优选注水井裂缝参数[J].天然气与石油,2013,31(2):0.doi:
.Optimization of Fracturing Parameters of Water Injection Well by Using Streamline Model[J].Natural Gas and Oil,2013,31(2):0.doi:
- DOI:
- 作者:
- 刘 哲1，2 郭建春1 曾凡辉1
- 作者单位:
- 1.西南石油大学油气藏地质及开发工程国家重点实验室，2.中国石油勘探开发研究院廊坊分院
- 关键词:
- 流线模型；水力压裂；低渗透油藏；注水井；裂缝参数优化
Streamline model； Hydraulic fracturing； Low permeability reservoir； Water injection well； Optimization of fracture parameters
- 摘要:
- 保持地层能量开采是保证低渗透油藏稳产高产的关键，低渗油田往往采用注水措施来提高油田的采出程度和采油速度。为了提高注水量和更好地保持地层压力，需要对注水井进行压裂，但是低渗透油藏中注水井压裂会导致油藏非均质性增强或油井水淹，因此模拟压裂与未压裂时注水井的动态，研究低渗透油藏中注水井可否进行压裂是必须的。流线模型具有计算精度高、计算速度快和收敛性好等方面的优势，采用流线模型模拟低渗透油藏注水井的动态，以胜利油田某区块为例对注水井裂缝参数进行优选，取得了良好的优选结果。
Pressure maintenance is very important for enhancing production in low permeability reservoir and that is why flood pattern is combined with hydraulic fracturing and integrated fracturing to enhance recovery. In order to increase water injection rate and maintain formation pressure， it is necessary to carry out water injection well fracturing. However， water injection well fracturing in low permeability reservoir will result in reservoir heterogeneity enhancement and oil well flooding. For this reason， it is necessary to simulate injection well dynamics in fracturing and not fracturing conditions and study the feasibility of water injection well fracturing in low permeability reservoir. Streamline model has such advantages as high calculation accuracy， fast calculation speed velocity and good convergence and it can be used for optimizing parameters of fracturing injection well in low permeability reservoir. Taking a block in Shengli Oilfield for an example， optimized are parameters in injection well fracturing and obtained are good effects.
