Petroleum Reservoir Evaluation and Development >

2020 , Vol. 10 >Issue 6: 90 - 95

DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2020.06.014

Field Application

Research on multi-stage heterogeneous flooding based on polymer flooding

  • Xiaojing ZHANG ,
  • Jun LU ,
  • Zhuo ZHANG ,
  • Limei LIANG ,
  • Linlin GUO
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  • 1.Petroleum Exploration and Development Research Institute, Sinopec Henan Oilfield, Nanyang, Henan 473132, China
    2.Oil and Gas Development Management Division, Sinopec Henan Oilfield, Nanyang, Henan 473132, China
    3.No. 2 Oil Production Plant, Sinopec Henan Oilfield, Nanyang, Henan 473400, China

Received date: 2020-07-17

  Online published: 2021-01-07

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Abstract

In order to solve the problems of serious heterogeneity, breakthrough of injected water along high permeability zone, low recovery percent of reserves and limited EOR capability of water flooding in the middle and low permeability fault-block reservoir of Wang-17 Block in Wangji Oilfield, the EOR technology of chemical flooding has been studied, and polymer and preformed particle gel（PPG） have been evaluated and screened. The slug structure, oil displacement efficiency and diversion rate of heterogeneous oil displacement system formed by compounding have been evaluated by physical simulation technology. And the slug volume and structure have been optimized by numerical simulation technology. It is confirmed that multi-stage heterogeneous profile control and slug polymer flooding can improve the recovery rate in Wang-17 Block by 8.25 percentage points. The field application has achieved initial results. This technology has been used for reference and popularized in the polymer flooding project of B238 Block in Xiaermen Oilfield.

Key words： polymer flooding; multi-stage slug; heterogeneous flooding; physical simulation; numerical simulation optimization

Cite this article

Xiaojing ZHANG , Jun LU , Zhuo ZHANG , Limei LIANG , Linlin GUO . Research on multi-stage heterogeneous flooding based on polymer flooding[J]. Petroleum Reservoir Evaluation and Development, 2020 , 10(6) : 90 -95 . DOI: 10.13809/j.cnki.cn32-1825/te.2020.06.014

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