西南石油大学学报(自然科学版)

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孤东二区Ng5 细分变流线井网调整技术研究

高聚同*   

  1. 中国石化胜利油田分公司孤东采油厂,山东东营257237
  • 出版日期:2015-06-01 发布日期:2015-06-01
  • 通讯作者: 高聚同,E-mail:gaojutong.slyt@sinopec.com
  • 基金资助:

    国家科技重大专项(2011ZX05013006)。

Adjustment Technology of Well Pattern in Gudong No.2 Block Ng5 Based
on Segmentation Variable Streamline Method

Gao Jutong*   

  1. Gudong Oil Production Plant,Shengli Oilfield,Sinopec,Dongying,Shandong 257237,China
  • Online:2015-06-01 Published:2015-06-01

摘要:

针对孤东二区开发单元2011 年转入后续水驱后存在的套损事故井多造成局部井网不完善、储量失控大;合
采合注井多,层间矛盾突出;一套井网开发,井网形式相对固定,平面层间剩余油得不到有效动用,单元目前采收率
低(35.5%)等问题,开展了孤东二区Ng5 细分变流线井网调整技术研究,通过层系细分、老井改层以及新井调整井网、
转变流线,利用建模数模一体化技术研究剩余油的分布,表明目前排间分流线、油井之间剩余油仍较富集,具备进一步
提高采收率的潜力。

关键词: 层间矛盾, 剩余油, 变流线, 井网调整, 建模数模

Abstract:

In view of No.2 Block Ng5 adopted water flooding after 2011 in the later development period,which brought many
problems,including the well casing damage resulted in imperfect well pattern and large reserves out of control,prominent
interlayer contradictions,relatively fixed well pattern,ineffective exploitation of plane interlayer remaining oil,low oil recovery
and so on. Therefore,in the study area we to implement segmentation variable flow pattern adjustment. In the study,we can
adjust well pattern and transform streamline by subdivision of strata,modifying layer of old wells and drilling new wells.
According to study the remaining oil by modeling and numerical simulation technology,we find the remaining oil in the shunt
line and between the oil wells is still adequate and has further potential to improve oil recovery.

Key words: interlayer contradictions, residual oil, variable streamline, well pattern adjustment, modeling and numerical
simulation