Zhang Shiliang, Zhao Yu, Wang Peiyi, Li Lu, Ding Lei. Deep acidification practice in fractured-vuggy carbonate reservoirs[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(S1): 52-55. doi: 10.11781/sysydz2017S1052
Citation: Zhang Shiliang, Zhao Yu, Wang Peiyi, Li Lu, Ding Lei. Deep acidification practice in fractured-vuggy carbonate reservoirs[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(S1): 52-55. doi: 10.11781/sysydz2017S1052

Deep acidification practice in fractured-vuggy carbonate reservoirs

doi: 10.11781/sysydz2017S1052
  • Received Date: 2017-07-08
  • Rev Recd Date: 2017-09-26
  • Publish Date: 2017-11-15
  • With the deep development of the fractured-vuggy reservoirs in the Tahe oil field, due to multi-round water injection pollution, cracks closing by energy loss, and poor well completion and acidification effects, there are more and more wells in which the far shaft fractures show a poor conducting capacity. Liquid lack seriously restricts oil production. Conventional and large-scale acidifications were applied; however, acid fluids reacted rapidly when they came close to wells, showing a restricted effective range and poor efficiency. A deep acidification technique was implemented, which conducted far channels and showed a good prospect.

     

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