化学研究
化學研究
화학연구
CHEMICAL RESEARCHES
2013年
4期
349-354
,共6页
鲍鹏程%韩晓强%马月琴%路遥%黄晓义%武立斌%刘方方
鮑鵬程%韓曉彊%馬月琴%路遙%黃曉義%武立斌%劉方方
포붕정%한효강%마월금%로요%황효의%무립빈%류방방
低温氧化%现场燃烧%重度原油%纯组分%注空气
低溫氧化%現場燃燒%重度原油%純組分%註空氣
저온양화%현장연소%중도원유%순조분%주공기
low temperature oxidation%in-situ combustion%heavy crude oil%pure oil compo-nents%air injection
低温氧化反应对现场燃烧(ISC)技术点火的成功有十分重要的影响.采用高压氧化管,研究了不同温度压力下,新疆克拉玛依重度原油的低温氧化过程.结果表明,温度和压力的变化对低温氧化反应的放热程度、持续时间以及气体产物有明显影响.适合油样低温氧化反应的温度和压力分别为150℃和10 MPa .此外,采用纯组分替代原油族组分进行低温氧化实验,研究低温氧化反应对原油族组分(饱和烃、芳香烃、胶质、沥青质)含量的影响.结果表明,原油所含族组分中,芳香烃组分最易被氧化,其含量由氧化前的19.17%减少到12.38%(150℃)和9.51%(250℃).随着低温氧化过程的进行,结构复杂的族组分(胶质、沥青质)的含量明显增加.实验数据对油藏实施注空气技术,以及该技术现场实施条件的确定有十分重要的指导意义.
低溫氧化反應對現場燃燒(ISC)技術點火的成功有十分重要的影響.採用高壓氧化管,研究瞭不同溫度壓力下,新疆剋拉瑪依重度原油的低溫氧化過程.結果錶明,溫度和壓力的變化對低溫氧化反應的放熱程度、持續時間以及氣體產物有明顯影響.適閤油樣低溫氧化反應的溫度和壓力分彆為150℃和10 MPa .此外,採用純組分替代原油族組分進行低溫氧化實驗,研究低溫氧化反應對原油族組分(飽和烴、芳香烴、膠質、瀝青質)含量的影響.結果錶明,原油所含族組分中,芳香烴組分最易被氧化,其含量由氧化前的19.17%減少到12.38%(150℃)和9.51%(250℃).隨著低溫氧化過程的進行,結構複雜的族組分(膠質、瀝青質)的含量明顯增加.實驗數據對油藏實施註空氣技術,以及該技術現場實施條件的確定有十分重要的指導意義.
저온양화반응대현장연소(ISC)기술점화적성공유십분중요적영향.채용고압양화관,연구료불동온도압력하,신강극랍마의중도원유적저온양화과정.결과표명,온도화압력적변화대저온양화반응적방열정도、지속시간이급기체산물유명현영향.괄합유양저온양화반응적온도화압력분별위150℃화10 MPa .차외,채용순조분체대원유족조분진행저온양화실험,연구저온양화반응대원유족조분(포화경、방향경、효질、력청질)함량적영향.결과표명,원유소함족조분중,방향경조분최역피양화,기함량유양화전적19.17%감소도12.38%(150℃)화9.51%(250℃).수착저온양화과정적진행,결구복잡적족조분(효질、력청질)적함량명현증가.실험수거대유장실시주공기기술,이급해기술현장실시조건적학정유십분중요적지도의의.
Low-temperature oxidation (LTO) has significant influence on the success of ignition process of the in-situ combustion (ISC) .In this research ,the LTO processes of the test crude oil were performed to study the appropriate operation conditions of air injection in Karamay oil-field (China) .The results revealed that ,in the temperature and pressure ranges considered , variations in the operation conditions had noticeable influence on the heat release ,the reaction time and the gas products of the LTO process .As to the studied crude oil ,the appropriate temperature and pressure for LTO process were 150 ℃ and 10 M Pa respectively .Additionally , saturates ,aromatics ,resins ,and asphaltenes (SARA ) analysis and experiments using pure oil components were preformed to study the LTO effects on the chemical components (SARA) of the oil .The results indicated that aromatics were more easily subjected to oxidation .It was found that the content of aromatics decreased from 19 .17% (before oxidation) to 12 .38% (be-ing oxidized at 150 ℃)and 9 .51% (being oxidized at 250 ℃) ,and more complicated compo-nents ( resins and alphaltenes) were formed as the LTO process progressed .The data can pro-vide guidelines for air injection in specific oil reservoir and air injection process design .