安塞油田管堵压裂技术试验研究

Study on Tube Plugging and Fracturing Technology in Ansai Oil Field

近几年,由于探索侧向低产油井的重复压裂改造技术的研究不断深入,从2000年开始,人们大量研究试验了暂堵压裂技术,现场应用增产效果明显。目前这一技术己经在安塞油田开始推广,成为老井改造的主要手段。本文针对安塞油田长6油层天然微裂缝发育、油层非均质严重、部分油井注水见效程度低、常规压裂效果差的状况,研究试验了暂堵压裂技术及配套的压裂液体系,现场应用增产效果明显,为长6油藏低产油井的重复改造提供了新的途径。

Many research tests of the temporary plugging fracturing technology have been carried out since 2000 year.At present,the technology has been applied in Ansai oil field and become the main measure of reforming old wells.In this article,aiming at some characteristics of Ansai oil field Chang 6 oil reservoir,the temporary plugging technology and related fracturing fluid system were studied.The results show that the stimulation effect of the temporary plugging fracturing technology are very obvious,which can provide a new way for repeat transformation of low producing wells of Chang 6 reservoir.