In the current stage of oilfield development, screw pump is an advanced mechanical oil recovery process. It has the characteristics of big pumping force, high pressure, strong pumping effect, good stability and low shear force in oil well and liquid lift process of oil well. It is suitable for the production of onshore oil wells as well as offshore oil production away from the land. In the oil, gas production, mining operation, plays a safe anti-theft, environmental protection, increase production and efficiency of the important role, by mine operators favor. Screw pump highlights the increase in production, increase efficiency victory Now River production plant daring use of the screw pump to extract the way of mining, and achieved significant increase in production and efficiency results. Grass ancient block 1 is one of the main production areas of the Anle oilfield. With the rapid development for many years, the flooding of the wells caused by the bottom water of the formation has become increasingly prominent. The conventional mining methods and the effect of composite sealing and treating the bottom water have been increasing year by year Worse. Through large-displacement screw pump lift oil extraction test, the "controlled water-stable oil extraction method" is changed to "large displacement lift liquid method"; by optimizing the technical parameters, the production rate of the oil well is increased, and the bottom water reservoir potential. Large displacement screw pump, is the use of multi-head screw pump to mention the liquid, with a large displacement, high pressure, low shear characteristics, suitable for large displacement sucker to mention the need to effectively solve the sucker rod Easy to break off and pump the depth of the control problem, but also to maintain a stable pressure differential, constant volume of fluid and the dynamic balance of the volume of oil can fully allow oil production capacity to play. Screw pump to boost safety and protect the environment Shengli Oilfield Linpan Oil Production Plant a mine will screw pump as "vent pump" into production, only 1 year to recover more than 1,500 tons of floor oil, economic recovery of 2.8 million yuan. In recent years, with the deteriorating law and order environment in the oil region, criminals are increasingly rampant activities, single-well, mixed pump pipeline was stolen phenomenon of frequent occurrence. The engineering, geotechnical personnel analysis, that the main reason is the way to vent defects. In the past, when criminals ruined the pipelines, small groups of people just simply drained the crude oil to the emptying pond to form a floor-standing oil that could not be recycled at all. The lawless elements looted and the pollution area was even greater, which was not conducive to the management of the metering station. The "taste sweet" criminals driven by economic interests, it will be more frequently Pirates cut the pipeline. Therefore, in order to cut off this "cancer", we must start from changing the way to vent. After the application of this technology, it reduces the loss of crude oil and pollution to the environment caused by efflux, accelerates the progress of pipeline maintenance and raises the oil well rate. Moreover, due to changes in the mode of venting, the "financial resources" of illegal taxpayers have been blocked, effectively reducing the occurrence of sabotage. Screw pump for the well "longevity" escort pump technology introduced production wells, is the core strength of Chengdao oilfield production. During the Ninth Five-Year Plan and the Tenth Five-Year Plan, the "long-life" screw pump wells at Chengdao Island have been increasing year by year. Due to the pump with a pumping capacity, good stability characteristics, is ideal for offshore oil production away from the land needs. Since the Ninth Five-year Plan, the technical staff of Shengli Offshore Oil Development Co., Ltd., combined with the underground dynamic and production characteristics of Chengdao Oilfield, reasonably introduced the advanced screw pump oil production technology and popularized it in a large area. With the deepening of understanding of the screw pump production technology and operation of technology to improve, screw pump oil production process in Chengdao gradually be complemented. After 6 years of field practice and operation, the company's technical staff have improved the implementation of the hollow rod technology, double-headed screw pump technology, screw pump frequency conversion soft-start technology and other technical measures to form a relatively perfect offshore screw pump production process System, showing a sea "longevity" screw pump wells increased year by year, a good situation. Victory Chengdao screw pump well "long life" (a long period of exemption) has become a common phenomenon, for the production of oil wells rate and production growth has laid a solid foundation, according to statistics Chengdao screw pump well repair more than 2 years There are 36 wells that have been exempted for more than 3 years (1098 days), 9 wells have been exempted for more than 4 years (1466 days), and the exemption period has exceeded 5 years (1826 days) Of the 1 well, made outstanding achievements in the leapfrog growth of the crude oil output of the offshore oilfields in Shengli Oilfield, and also provided a reliable guarantee for the sustained and stable development of the oilfield during the 10th Five-year Plan.
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