Research and Application of Multistage-section Water Plugging
Technology in Fractured-cavity Carbonate Reservoirs

doi:10.11885/j.issn.1674-5086.2013.02.22.01

Abstract

Abstract:

In view of the development of the holes，fissures and caves in fractured-cavity carbonate reservoirs in Tahe Oilfield，
which has a high heterogeneity，the bottom water easily comes from high angle fracture，and it′s difficult to make water control
for producing wells，multistage-section water plugging technology was proposed to shut off water for this kind of reservoirs.
According to the well characteristics，leakage was stopped by using different types of plugging agent and plugging technology.
By solidified particles with different density as the main plugging agents，and the multistage slug section injection process
and control pressure acidification control technology，the efficient water plugging was achieved in fractured-cavity reservoirs.
Field experiments indicate that the multistage-section water plugging technology has a good adaptability in Tahe fractured-cavity
carbonate reservoirs，with above 70% of effective rate.

Key words: fractured-cavity reservoirs, water plugging technology, leaking stoppage technique, multistage-section, water
plugging agent

Wu Wenming*, Zhan Zhaowen, Ouyang Dong, Qin Fei. Research and Application of Multistage-section Water Plugging
Technology in Fractured-cavity Carbonate Reservoirs[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.02.22.01.

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