China Petroleum network news, as of September 25th, Changqing oil production plant is responsible for the development of the Ansai oilfield, this year has completed 57 drilling side, the daily average increase of 105 tons of oil.
Ansai oilfield is a typical low permeability, low pressure and low abundance reservoir. For the "three low" reservoir, to carry out large-scale development, it is necessary to guarantee a certain number of oil wells, which will occupy more arable land. The first oil production plant of Ansai combined with ground environment and reservoir distribution, several technical demonstration and experimental research, the implementation of sidetracking technology, to maximize the use of resources of old wells.
Lateral drilling is in some serious casing damage, or seriously flooded invalid wells, the original mining horizon completely blocked, then from the upper part of a certain position to re open the window, according to the reservoir condition to avoid a certain distance from the original shaft again in a new wellbore, implementation of crude oil. The application of side drilling technology, using only one wellbore resource and hitting a new well, not only saves the cost of borrowing and borrowing, but also shortens the period of preparation before drilling.
Lateral drilling oil may be not the construction of new pipelines, booster station ground ground system, saving construction costs, at the same time, Nii put into operation immediately after the incorporation of regional management, without increasing the management and operation personnel.
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