新疆石油地质

新疆石油地质 ›› 2003, Vol. 24 ›› Issue (2): 161-163+189.

• 油藏工程 • 上一篇    下一篇

文72块沙三中油藏烃气驱室内实验

曾贤辉, 彭鹏商, 王进安, 陈德斌, 罗松刚   

  1. 中国石化 中原油田分公司 勘探开发科学研究院,河南 濮阳 157001
  • 收稿日期:2002-03-20 修回日期:2002-06-27 出版日期:2003-04-01 发布日期:2020-09-17
  • 作者简介:曾贤辉（1967-）,男,四川蓬溪人,工程师,油藏工程。联系电话： 0393-4732851

Lab Test of Hydrocarbon Gas Injection in Middle Sha-3 Reservoir of Block Wen-72

ZENG Xian-hui, PENG Peng-shang, WANG Jin-an, CHEN De-bin, LUO Song-gang   

  • Received:2002-03-20 Revised:2002-06-27 Online:2003-04-01 Published:2020-09-17
  • About author:ZENG Xian-hui (1967-), Male, Engineer, Reservoir Engineering, Research Institute of Exploration and Development, PetroChinaZhongyuan Oilfield Company, Puyang, Henan 457001, China

PDF

224

摘要： 文留油田文 72块沙三中低渗透挥发性油藏注烃类气室内实验研究包括地层流体的物理性质研究、注入溶剂的组分分析以及通过细管实验研究地层流体同注入溶剂在130℃时的最小混相压力。研究表明,最小混相压力为 47.1MPa.通过长岩心模拟目前油藏条件,进行水驱、烃类气驱以及气与水交替驱实验研究,天然气驱实验表现出近混相的特征,气体突破时,采收率为65.7%,最终采收率能达到86.1%;水驱实验表明无水采收率能达到61.9%,当含水为98%时,采收率能达到64.5%;水驱后进行天然气与水交替注入,共进行3个循环,各个气、水段塞为 0.2PV,最终采收率达到95.22%,比水驱提高30.69 个百分点。

关键词: 文留油田, 低渗透油气藏, 气驱, 实验室试验, 采收率

Abstract: The lab test of hydrocarbon gas injection into low permeability and volatile reservoir in Block Wen-72 of W enliu oilfield is presented, which includes physical property study of formation fluid, injected solvent component analysis and the minimum miscibility pressure of formation fluid and injected solvent at 130C through slim tube. The study shows that the minimum miscibility pressure is 47.1Mpa, the recovery factor is 65.7% when gas breakthrough is made, the ultimate recovery factor is 86. 1%. Water flooding lab test indicates that the breakthrough recovery is up to 61.9%,the recovery factor is up to 64.5% when water cut is up to 98%. Gas/ water alternating injection following water flooding includes 3 cycles for each plug of 0.2PV. The ultimate recovery factor of 95.22% is higher than that of water flooding by 30.69%.

Key words: Wenliu oilfield, low permeability reservoir, gas drive, laboratory testing, recovery factor

中图分类号: