Study of pipeline transportation scheme of high-solidifying oil in Tarim oilfield
The extra physical characteristics of crude oil in Sanjay section of Tarim oilfield are high-wax(12.8 %), high solidifying point(20 ℃), and high wax appearance temperature(WAT)(31.5 ℃); therefore, the transportation of oil by a pipeline is difficult. However, the gas condensate oil in Xinjiang JiLaKe has excellent characteristic including lower solidifying point. So, a new Scheme is carried out: above two type oil are blended in Lunnan oil and gas gathering and transportation station, then transported. The experimental result shows that the solidifying point and WAT of Sanjay oil is lowered by the addition of JiLaKe gas condensate; even if the pipeline is not insulation treatment, the temperature at the end of transportation pipeline can meet the technological requirements. Thus, this scheme is successful, and the total investment is 6,140,000 RMB.