Technology Research About Super Large Composite Acid Fracturing
Filtration in Tahe Oilfield

doi:10.11885/j.issn.1674-5086.2012.10.18.02

Abstract

Abstract:

Abstract：In order to meet the needs of super large composite acid fracturing stimulation technology of the carbonate reservoirs
in Tahe Oilfield ，the particle size of 0.150 mm ceramic powder，oil soluble temporary plugging agent and biodegradable fiber
were evaluated in laboratory as filtrate reducer. Ceramic powder can decrease the filtrate loss by nearly 2 L in 15 min compared
with no ceramic powder，the filtration rate drop from 3.3×10-6 m/min down to 2.0×10-6 m/min；oil soluble temporary plugging
agent more than 85%；biodegradable fiber filtration reducing agent，reduce the liquid filtrate volume by 37.70%～22.99% when
temperature is at 80～120 ℃. Given reservoir characteristics and technological requirements of ceramic powder of different
particle size and of the permeability test results，we found that a 0.150 mm particle size powder pottery is applicable to Tahe
Oilfield super large composite acid. Based on the analysis of different action mode of ceramic powder on natural fracture，
ceramic powder was added around 10%，in ascending sequential order. Based on proppant slugs technique principle and fracture
shape，the ceramic powder amount is optimized. In Well TH12227H field test，satisfactory results were obtained，which have
an important guiding significance.

Key words: Key words：Tahe Oilfield, super large composite acid fracturing, filtration, fluid loss additive, experimental evaluation

Zhang Ye1，2, Yang Shenglai1, Jiao Kebo2. Technology Research About Super Large Composite Acid Fracturing
Filtration in Tahe Oilfield[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2012.10.18.02.

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