The engineering and technical brigade of the 9th Oil Production Plant has extended the inspection time of the pump and the column.
Easily skip "Double 700"
Saves more than 23 million yuan in operating costs per year for the entire plant
Daqing Net News (Qu Fengbo Yu Guanghua reporter Xiujun) Oil recovery nine factory inspection pump and pipe column maintenance cycle, both skipped the height of 700 days. As a result, the Nine Factory can reduce operating costs by more than 23 million yuan per year.
In the past, the pumping period of the nine wells was 398 days, and the wells could reach 480 days. The pump inspection cycle is short, the operation is frequent, and the operation team is busy "halo". Can't do it, but also have to hire a team. The inspection of the pump or the maintenance of the column operation takes two days, and the cost of a single well is more than 30,000 yuan.
The number of operations is high, the cost of oil production is difficult to drop, and the annual impact on production is more than 2,000 tons due to pump inspection and maintenance of the pipe string.
As a result, the scientific and technical personnel here launched a "charge" to the extended inspection pump and column inspection cycle. Sure enough, a scientific research achievement has brought people a surprise.
Let’s talk about the well, and realize the “triple jumpâ€. Their self-developed washable pipe column supporting technology has achieved high-pressure water injection from low-pressure water injection, and has achieved sealable well washing from subdivision water injection. Of this technology, 6 of them won the Science and Technology Innovation Award.
As a result, the inspection period of the water injection pipe column jumped to a new height, extending from an average of 480 days to 618 days. After 700 days, the longest single-well maintenance period reached 967 days.
Look at the unique life of the pump cycle, there are 3 tricks.
First, it has gone out of the "misunderstanding." In the past, the method of copying the old oilfields thought that the larger the pressure difference at the wellhead, the better, but the effect was not satisfactory. After research, the conclusion is not the bigger the better, the key is to choose the best number of "heads" for the steamed bread machine. Because the permeability of the peripheral oilfield is low, the oil layer is thin, and the steamed bread machine is steamed, the work is ineffective, and as a result, the pump is exhausted.
After getting out of the "misunderstanding", they developed a set of software to optimize the parameters of the twitching, and the parameters were determined by calculation, and the effect was good.
Second, there is a new breakthrough in anti-biasing technology. After designing the limit super rod, last year, the directional well trajectory simulation technology was developed to make the installation of the sucker rod centralizer more scientific.
Up to 154 centralizers can be installed in deep wells. The eccentricity rate dropped from 14.6% five years ago to the current 7.9%.
The third is new measures on the anti-pump card. The pump is most afraid of wax cards and sand cards, and one pump has to check the pump. In the past, some tricks worked, but last year their new super-thermal wax cleaning technology was even better. There are more than 4,000 wells in the whole plant. There were only 13 wells in the wax card last year. Sand control card, they focus on the application of sand control screen technology, the effect is very good.
Nowadays, the Nine Factory has achieved the “Double 700†inspection cycle for the inspection of the pump and the column. In 2006, the number of operation wells was reduced by 656 times compared with the previous year. The calculation cost was only 35,000 yuan per single operation cost. More than 23 million yuan.
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