APPLICATION OF A NEW EOR METHOD TO THE HIGH WATER CUT RESERVOIR

doi:10.3863/j.issn.1000-2634.2001.06.16

Abstract

Abstract:

This paper presented the results from pilot test of a new “2+3”EOR technology at Zhuang 106-32 well group in Zhuang l06 oil district. The new“2+3”technology is used to enhance the oil recovery by improving not only the sweep efficiency but also the displacement efficiency, which is referred to as limited tertiary recovery. This technology primarily increases injection water volume while mixing oil-washing agent into the injected water. Compared with the traditional water-flooding, the volume of the new displacing agent is so small. TheFDva1ue is also used to identify the degree of profile control. The profile control agent is a mixture of chromium gel and solidifiable system, and the displacing agent includes alkaline and polymer. After the pilot test finished, the performance of the well group is remarkably improved and the oil rate is increased by 14.3 t/d. So far, the incremental oil volume is up to 4830t regardless of the nature decline of production and the ratio of investment to outcome is 1∶6.4.

Key words: enhanced oil recovery, profile control, tertiary recovery, Shengli oilfield, pilot test

CLC Number:

TE357

MIAO Ming-cai SHANG Zhao-hui WU Bo-zhi HOU Li ZHAO Fu-lin. APPLICATION OF A NEW EOR METHOD TO THE HIGH WATER CUT RESERVOIR[J]. 西南石油大学学报(自然科学版), 2001, 23(6): 51-55.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.2001.06.16

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2001/V23/I6/51

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APPLICATION OF A NEW EOR METHOD TO THE HIGH WATER CUT RESERVOIR

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