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

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 exampl es to illustrate the characters of geology and production in complex faults blo ck 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 fracturin g 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 demons tration of the main points.At last,the results of 6 fracturing wells in Anan reservoir and the conclusion of fracturing feasib ility in Saihan reservoir are summarized.