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Shuguang Oilfield improved seepage channel and increased production capacity of blocks by 800 thousand tons

Shuguang Oilfield improved seepage channel and increased production capacity of blocks by 800 thousand tons

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  China Petroleum Network News chemical flooding, a more advanced than the dilute water injection development mode of production, this year became the Liaohe Oilfield Shuguang oil production plant high frequency words. As of August 30th, the oil field has been in the Shu three area Dujiatai oil from flooding Shu 3-5-507 four wells.

  In the strict sense, chemical flooding is the three oil recovery method after the development of thin oil, following natural development and water injection development." Shuguang chief engineer, major general Zhang Shoujun introduced the test project, the mode of production is injected into the reservoir by the equipment to improve the existing reservoir polymer seepage channel, let oil "satiate", so as to enhance energy, improve oil displacement efficiency, improve the whole block development effect, revitalize the block capacity.

  The three district development history of 40 years of Shu, the area geological reserves of 22 million 440 thousand tons. Although the block is a thin oil product, there are many contradictions in the development of sand, wax, water and thick, and the block management is very difficult. Especially under the condition of water injection development, the oil recovery rate is only 0.57% at the present stage, and the recovery rate is 32.8%, which is low in the same kind of reservoirs in china. According to professionals, Shu three region has been using a set of strata section commingled injection and production, there is a big difference in the level of district development status, keep the plane degree of water flooding and pressure, especially central Du 18 well area of severe flooding, water flooding is difficult to rely solely on the improvement of the effect of block development, needs to transform development mode.

  As a major development in Liaohe Oilfield pilot project plan, Shu three region, flooding six wells, 4 wells has been successfully flooding, the average single well on polymer injection of 50 cubic meters, with a concentration of 1800 mg / L, injection pressure of 8 to 13 mpa. To ensure the smooth completion of the transfer work, the project implementation process, Shuguang oil extraction plant from the ground construction to the process of transformation, the various forces jointly force, showing a super team spirit.

  According to the forecast, after combing the Shu three area geological reserves of about 8 million 200 thousand tons of chemical flooding for production development, the optimization of the Du 18 well area 6 note 16 coal chemical flooding pilot test, 10.3% block can improve the recovery rate, increase the block production capacity of 800 thousand tons.

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