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Experience with backsurging and abrasive-perforating to obtain improved perforation performance

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5666326
Backsurging and abrasive-perforating are 2 techniques which have been applied in completions in Shell's South Pass Blocks 24 and 27 fields at the mouth of the Mississippi River, to solve the problem of removal of jet perforating debris prior to installation of sand control. Results of 70 backsurged completions and 18 abrasive- perforated completions were compared to results obtained with a base group of 61 wells which had been conventionally completed by jet perforating. Each of the 3 types were investigated relative to easily measured completion sand parameters such as gamma ray and electric log response, subsea depth, bottom-hole pressure, and interval length, utilizing multiple linear regression analysis. A similar analysis also was used to explore relationships between productivity and treatment parameters for both backsurged and abrasive-perforated wells. Production behavior over producing life also was investigated for each of the 3 completion types. Backsurging was found to produce a permanent 2-fold improvement in well productivity over conventional completions, and while abrasive-perforating also resulted in improved completions initially, due to rapid productivity decline was not judged as effective as backsurging.
Research Organization:
Shell Oil Co
OSTI ID:
5666326
Report Number(s):
CONF-711093-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-3449
Country of Publication:
United States
Language:
English