China oil network news September 14th, reporters from the Turpan oil production plant of Tuha oilfield was informed that the growth is low cost of acid system pressure, glucose 4-10 well application in Tuha downhole company independent research and development, cost saving effect, per cubic metre acid cost savings of nearly 1000 yuan.
Portugal 4-10 well is a water injection well of block 4 in Turpan oilfield. The well is divided into 60 cubic meters / day after injection and completion. The injection is 25 cubic meters per day and the injection pressure is 26 MPa, which is seriously short of injection. The company of the Turpan Hami underground fracturing technical personnel with reservoir lithology and physical properties and fluid characteristics, focusing on a comprehensive and systematic analysis of the well water conditions, water quality and historical work well, suspended solid particles of inorganic scale to determine the main pollution factors well for long-term water injection and external fluid in pollution, decided to adopt the low cost of acid system. The acidizing fluid system has the characteristics of low cost, simple process and effective removal of clogging of carbonate scale. After the acidification of well No. 4-10, 60 cubic meters / day is injected with 60 cubic meters per day and the injection pressure is 2 mpa.
The acid system is successfully applied in the Portuguese 4-10 well, not only for the same type of wells in block of Turpan oilfield provides a new idea for injection treatment, Tuha oilfield company continue to reduce the cost of oil wells and injection wells acidizing provides a new feasible scheme.
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