An Impressive Impact on Well Productivity by Hydrochloric Acidizing of Vuggy Carbonate Reservoir: A Case Study
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 375
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شناسه ملی سند علمی:
JR_IJOGST-6-3_002
تاریخ نمایه سازی: 18 اسفند 1397
چکیده مقاله:
Hydrochloric acidizing is a routine operation in oil fields to reduce the mechanical skin. In this paper, practical acidizing in a typical carbonate oil reservoir located in the southwest of Iran is practiced, which shows an unexpected improvement after acidizing. To understand the acidizing effect on reservoir rock, the formation rock is analyzed on different scales. An acidizing laboratory test is also carried out on formation core samples to understand the acidizing performance. The results show that the main feature of this reservoir is its dominated secondary porosity and its special pattern of distribution. Practically, this porosity percolation has caused high mechanical skin during drilling and a large productivity improvement after acidizing. The acidizing increased the ultimate recovery of the reservoir with existing wells and prolonged the production plateau.
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نویسندگان
Abolfazl Hashemi
M.S. Students, Arvandan Oil and Gas Company, National Iranian Oil Company, Tehran, Iran
Seyed Reza Shadizadeh
Professor, Department of Petroleum Engineering, Petroleum University of Technology, Abadan. Iran