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STUDY ON EFFICIENCY OF HORIZONTAL WELL DEVELOPMENT IN COMPLEX FAULT-BLOCK OIL RESERVOIR

Yuetian Liu, Moe Key

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Abstract

Six development schemes were designed based on the result of fine reservoir description of Gaoshangbao oilfield,and the a ratio of total oil produced to OOIP and water-cut change laws of every scheme were obtained by applying reservoir numerical simulation method.According to the development effectiveness evaluation of the overall and partial reservoir and the different development stage and different type of horizontal wells,the applicability of horizontal wells development in fault block reservoir was studied.The conclusion was that the earlier adopting horizontal wells,the better result will be got.The mixed injection-production well pattern which included vertical wells and horizontal wells was good to carry out in complicated fault block reservoirs.The production total rate of high-deviated wells and double branch horizontal wells was higher than other types well.

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What this paper is about

Six development schemes were designed based on the result of fine reservoir description of Gaoshangbao oilfield,and the a ratio of total oil produced to OOIP and water-cut change laws of every scheme were obtained by applying reservoir numerical simulation method.According to the development effectiveness evaluation of the overall and partial reservoir and the different development stage and different type of horizontal wells,the applicability of horizontal wells development in fault block reservoir was studied.The conclusion was that the earlier adopting horizontal wells,the better result will be got.The mixed injection-production well pattern which included vertical wells and horizontal wells was good to carry out in complicated fault block reservoirs.The production total rate of high-deviated wells and double branch horizontal wells was higher than other types well.

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Available abstract

Six development schemes were designed based on the result of fine reservoir description of Gaoshangbao oilfield,and the a ratio of total oil produced to OOIP and water-cut change laws of every scheme were obtained by applying reservoir numerical simulation method.According to the development effectiveness evaluation of the overall and partial reservoir and the different development stage and different type of horizontal wells,the applicability of horizontal wells development in fault block reservoir was studied.The conclusion was that the earlier adopting horizontal wells,the better result will be got.The mixed injection-production well pattern which included vertical wells and horizontal wells was good to carry out in complicated fault block reservoirs.The production total rate of high-deviated wells and double branch horizontal wells was higher than other types well.

Key concepts: Fault block, Petroleum engineering, Water cut, Geology, Fault (geology), Block (permutation group theory), Oil production, Water well

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STUDY ON EFFICIENCY OF HORIZONTAL WELL DEVELOPMENT IN COMPLEX FAULT-BLOCK OIL RESERVOIR — Research Paper | ScholarLens