白豹油田B166井区北部超前温和注水开发效果分析

The effect Analysis of advanced and temperate Waterflood development at the North of B166 wellblock in Baibao Oil Field

B166井区为白豹油田主力开发区块之一,早期井区南部开展强注强采开发试验,导致油井含水上升速度快、采油速度低、递减快。笔者总结南部开发试验经验,参阅大量注水开发技术文献,并借鉴国内外油田注水开发实例,在超低渗油藏已成熟的超前注水技术基础之上,创新性的提出了温和注水技术。北部试验井组采用超前温和注水开发技术,取得良好的开发效果,平均单井日产油为强注强采井2倍左右,表明了超前温和注水技术适用于B166井区注水开发,该技术在国内外同类型油藏注水开发实践中具有较大的应用价值。

B166 wellblock is one of the main development blocks in Baibao oilfield.The early forced injection and forced production development tests in the south,Cause water rise speed,low oil production rate and decline rapidly.The author summarizes the development test of Southern experience,refers to the large amount of water injection development technical documents and the water injection development oil field examples at home and abroad,proposes moderate water injection technology base on mature advance water injection technology in low permeability reservoirs.Northern test wells group adopted advanced moderate waterflood development technology,and achieved well development effect,average oil production of single well above the strong injection production well nearly 2times.This showed that the leading moderate injection technology is suitable for water injection development B166 well area,the technology has great application value in the same type of waterflood development practice.