Continental-shelf freshwater water resources and improved oil recovery by low-salinity waterflooding
Continental-shelf freshwater water resources and improved oil recovery by low-salinity waterflooding
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DOI：
10.1306/05241615143
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发表时间：
2017
期刊：
影响因子：
3.5
通讯作者：
M. Person;John L. Wilson;N. Morrow;V. Post
中科院分区：
文献类型：
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作者：
M. Person;John L. Wilson;N. Morrow;V. Post
本研究评估了利用近海淡水改善被动边际海洋环境中石油回收的可行性。低盐度水泛滥（5立方千米（1.89x1011桶）淡水（3立方千米）），低盐度水泛滥（9至8.7x1010桶/英里海岸线），大多数在距海岸20至100千米的范围内，水深10至50米。由于大多数海上石油平台距离海岸不到100公里（60英里），这些资源可以用于低盐度回收。海上淡水-微咸水生产的横截面含水层模型表明，一口1000米（3280英尺）长的水平井可以生产19,200立方米/天（120 764桶/日）来自渗透性较强的含水层（10-11至10-12 m2; 10，000至1000 mD），在井的典型寿命（30年）内，由中等紧密（~ 10-15 m2; 1 mD）的封闭装置覆盖。
This study assesses the feasibility of utilizing offshore freshwater for improved oil recovery in passive-margin marine environments. Low-salinity water flooding (5 km3 (1.89x1011 barrels) of fresh (3 of fresh–brackish water (9 to 8.7x1010 barrels/mile of shoreline), most within 20 to 100 km from the coast in water depths of 10 to 50m. Because the majority of the offshore oil platforms are located less than 100 km (60 miles) from the shore, these resources could be utilized for low-salinity recovery. Cross sectional aquifer models of offshore fresh–brackish production indicate that a single, 1000m (3280 ft) long horizontal well could produce 19,200 m3/day (120,764 barrels/day) from a relatively permeable aquifer (10-11 to 10-12 m2; 10,000 to 1000 mD) overlain by a moderately tight ( ~ 10-15 m2; 1 mD) confining unit for the typical life span of a well (30 years).