Parameter Optimization Research for Water Huff and Puff
Technology in Lungu Well Area of Tarim Oilfield

doi:10.11885/j.issn.1674-5086.2012.12.10.01

Abstract

Abstract:

The ordovician reservoirs in Lungu well area of Tarim Oilfield belong to the fracture-cavity carbonate reservoirs，
which are highly non-homogeneous. Single-well oil production declines rapidly because of reservoir energy shortage. Water
huff and puff（cyclic water stimulation）is a novel method for the exploitation of the fracture-cavity carbonate reservoir，which
can substantially improve single-well productivity. Whether the injection-production parameters of water huff and puff technology
are appropriate is essential to the oilfield development. Based on the geological and fluid information of the typical
water huff and puff well，the geological model for water huff and puff technology is built to optimize the corresponding factors
which include injection timing，cyclic water injection rate，injection speed，soaking time and daily fluid production rate. In
this research，the corresponding factors are dimensionless or correspond to fitting formula to eliminate the effects of production
performance differences before water injection and make the optimized parameters more effective.

Key words: fracture-cavity, carbonate reservoir, water huff and puff, numerical simulation, parameter optimization

Feng Qihong1*, Song Yulong2, Yang Yahui1, Hu Dengqiang3, Chen Yuxiang3. Parameter Optimization Research for Water Huff and Puff
Technology in Lungu Well Area of Tarim Oilfield[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2012.12.10.01.

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