复杂断块油田压裂的特点与思路

The Fracturing Characteristic and Strategy in Oil Field with Complicated Faults

蒋廷学

Jiang Tingxue

中国石油天然气集团公司石油勘探开发研究院廊坊分院

Langfang Branch , Research Institute of Petroleum Exploration and Development , Hebei 065007 , P. R. China

以二连油田的几个断块油藏为例,概述了复杂断块油田的地质与生产特点(与整装油田相比较) ,并由此论述了压裂设计的特殊性和复杂性,其中录取资料难的问题尤为突出。此外,在压裂工艺设计上,如何结合不尽相同的地质条件,从而使不同类型的油井压裂都能最大限度地获得预期的增产效果,则是断块油田压裂设计的重点。这是一项系统工程,文中对此作了系统论述。最后概述了按此设计思路进行的6 口井压裂效果分析及赛汉油藏压裂可行性研究结论。

Two reservoirs of Anan and Saihan located in Erlian oil field are used as examples to illustrate the characters of geology and production in complex faults-block oil field (compared with integrity one) . The specialty and complicacy of fracturing design in above type of oil field is demonstrated. In addition , the most important is that how to match the fracturing technologies with various geology conditions , in order that a maximum expected stimulation effect can be got . This is a systematic engineering which demands all measures be mutual matched homoniously. This paper gives a systematic demonstration of the main point s. At last ,the results of 6 fracturing wells in Anan reservoir and the conclusion of fracturing feasibility in Saihan reservoir are summarized.