CAJ | 학술논문

红河油田长8油藏属致密裂缝性油藏，通过水平井开发取得显著效果，但压裂施工砂堵频繁出现，直接影响油井的产能和油田经济开发效益。通过砂堵井地质特征与压裂曲线分析，得出红河油田长8油藏压裂砂堵原因有储层泥质含量高、天然裂缝发育、前置液比例与施工排量偏低、压裂液问题等4个方面，并明确了4类砂堵井的压裂施工曲线特征。同时，结合压裂砂堵原因分析，分别从压裂设计、现场施工和现场质量控制等3个方面，提出了压裂砂堵预防措施，现场应用取得良好效果，有效提高了红河油田长8油藏水平井压裂施工成功率。
홍하유전장8유장속치밀렬봉성유장，통과수평정개발취득현저효과，단압렬시공사도빈번출현，직접영향유정적산능화유전경제개발효익。통과사도정지질특정여압렬곡선분석，득출홍하유전장8유장압렬사도원인유저층니질함량고、천연렬봉발육、전치액비례여시공배량편저、압렬액문제등4개방면，병명학료4류사도정적압렬시공곡선특정。동시，결합압렬사도원인분석，분별종압렬설계、현장시공화현장질량공제등3개방면，제출료압렬사도예방조시，현장응용취득량호효과，유효제고료홍하유전장8유장수평정압렬시공성공솔。
Honghe oilfield Chang-8 reservoir is a tight fractured reservoir which has achieved significant effect through horizontal well development. But frequently appearance of fracturing sand up directly influences the productivity and economic benefit. By analysis of the geological characteristics and fracturing curves of sand up wells, the sand up reasons of Chang-8 reservoir in Hong?he oilfield were summarized to high reservoir clay content, natural fracture, low pre-hydraulic proportional and flow rate, and frac?turing fluid. And four kinds of fracturing curves characteristics of sand up wells were identified. Meanwhile, combined with the rea?son analysis of fracturing sand up, preventive measures were proposed from there aspects of fracturing design, site construction and site quality control. Great results were achieved in the field application. And success rate of horizontal well fracturing operation of Chang-8 reservoir in Honghe oilfield was effectively improved.