大庆石油学院学报
大慶石油學院學報
대경석유학원학보
JOURNAL OF DAQING PETROLEUM INSTITUTE
2009年
6期
72-76
,共5页
稠油%化学改质%催化剂%碱性缓冲溶液%协同效应%注蒸气
稠油%化學改質%催化劑%堿性緩遲溶液%協同效應%註蒸氣
주유%화학개질%최화제%감성완충용액%협동효응%주증기
heavy oil%chemical upgrading%catalyst%alkaline buffer solution%synergistic effect%steam injection
模拟注蒸气条件下,进行欢喜岭低硫稠油化学改质反应实验,结果表明,无催化剂化学改质后稠油黏度降低了1/4以上,添加合适催化剂可降低60%以上,碱性缓冲溶液与催化剂协同改质可降低80%;相应地化学改质处理后,重质组分质量分数降低,轻质组分质量分数增加,稠油品质提高;现场试验井改质后,稠油黏度降低了70%以上,重质组分质量分数降低,试验周期产油量增加了865.7 t,油气比增加了0.858,化学改质和增产效果明显,表明碱与催化剂协同作用化学改质技术开采低硫稠油潜力很大.
模擬註蒸氣條件下,進行歡喜嶺低硫稠油化學改質反應實驗,結果錶明,無催化劑化學改質後稠油黏度降低瞭1/4以上,添加閤適催化劑可降低60%以上,堿性緩遲溶液與催化劑協同改質可降低80%;相應地化學改質處理後,重質組分質量分數降低,輕質組分質量分數增加,稠油品質提高;現場試驗井改質後,稠油黏度降低瞭70%以上,重質組分質量分數降低,試驗週期產油量增加瞭865.7 t,油氣比增加瞭0.858,化學改質和增產效果明顯,錶明堿與催化劑協同作用化學改質技術開採低硫稠油潛力很大.
모의주증기조건하,진행환희령저류주유화학개질반응실험,결과표명,무최화제화학개질후주유점도강저료1/4이상,첨가합괄최화제가강저60%이상,감성완충용액여최화제협동개질가강저80%;상응지화학개질처리후,중질조분질량분수강저,경질조분질량분수증가,주유품질제고;현장시험정개질후,주유점도강저료70%이상,중질조분질량분수강저,시험주기산유량증가료865.7 t,유기비증가료0.858,화학개질화증산효과명현,표명감여최화제협동작용화학개질기술개채저류주유잠력흔대.
The lab experimental results show that heavy oil with low sulfur content could be upgraded under steam injection conditions. As a result, viscosity reduction of upgraded heavy oil is over 1/4 without addition of catalyst, larger than 60% with addition of transition metal catalyst, up to 80% with synergistic effect of alkali and catalyst. At the same time, the content of heavy components of treated heavy oil such as resin and asphaltene is decreased, and heavy oil is upgraded to some extent. Evident upgrade and stimulation effects could be obtained from the field chemical upgrade application, the viscosity of treated heavy oil is reduced by over 70%, heavy components in heavy oil decreased, periodical oil production increased by 865.7 ton, and ratio of oil production to steam injection enhanced 0.858. In sum, it is the potential to improve heavy oil recovery by chemical upgrading with addition of alkali and catalyst.
