Changqing Oilfield Thousand Tons Family Add New Ding
On September 7, marked by 1023 tons of crude oil per day, the Huanjiang operation
Release time:
2015-09-08
Source:
News from China Petroleum Network(Reporter Yang Wenli, Correspondent Li Peng) On September 7, marked by 1023 tons of crude oil per day, the Huanjiang operation area of Changqing Oilfield No.7 Oil Production Plant was located in Huanjiang area of Huanxian County, Gansu Province, adding new members to the 1,000-ton family of the oil field. This is the fourth thousand-ton operation area built in Changqing Oilfield this year. Up to now, there are 26 thousand-ton operation areas in Changqing Oilfield.
After a systematic understanding of the ultra-low permeability reservoirs in this area, Changqing Oilfield No.7 Oil Production Plant has targeted the Huanjiang area for crude oil production since 2008. In the past few years, the daily output of crude oil in the Huanjiang operation area once reached more than 900 tons, but due to the special stratigraphic environment, each well cannot get rid of the trouble that "the day of production is the time to reduce production.
In view of the difficulties in crude oil production, Huanjiang operation area systematically analyzes the reasons for the rapid decline of oil fields in combination with the problems of rapid water cut rise, wellbore scaling, serious wax deposition and difficulty in stable production. On the one hand, the problem of underinjection is completely solved by "injecting enough water and enough water", the formation energy is improved, the formation pressure is ensured to rise by 4 percentage points, and the production decline rate is reduced from 18.7 to 11.5. On the other hand, intensify measures for old wells. Through the implementation of fracturing and acidification, measures have been implemented for 51 wells, increasing crude oil production by 53 tons per day, and this year has increased oil by 4868 tons. In particular, after the implementation of horizontal well sand flushing treatment in Huping 5-16 well, the daily output increased from 1 ton to 6.5 tons.
On the basis of the implementation of stable production and production increase measures for the old well, the Huanjiang operation area increased the geological research on the exploited oil reservoir, compared and analyzed the data of the exploited oil well, found a new layer, and obtained high yield. Huanjiang operation area adheres to the "three production" idea of quality production, technology production and safety production, and accurately places wells. 52 wells have been put into production in the newly discovered horizon, with an increase of 249.3 tons of oil per day.
Oilfield,Crude Oil
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