本文選題：沈-安塊 + 高凝油��； 參考：《特種油氣藏》2017年04期

【摘要】：沈84-安12塊為遼河油區(qū)典型的高凝油注水開發(fā)區(qū)塊,為了系統(tǒng)掌握長期注水開發(fā)對高凝油性質(zhì)變化的影響,采用流變儀、差示掃描量熱儀(DSC)、氣相色譜儀等分析技術(shù)對該區(qū)塊高凝油開展了析蠟點、熔蠟點、流變性、含蠟量及族組成等方面的系統(tǒng)分析,并利用沈檢5井的巖心抽提物進行原油流變性及析蠟點研究。結(jié)果表明:該區(qū)塊高凝油含蠟量為31.73%~39.59%,凝固點為46~50℃,析蠟點為51.60~68.60℃(平均為65.65℃),比開發(fā)初期高6.60℃以上;結(jié)合取心井中原油析蠟點可知,該區(qū)塊地層原油析蠟點為70.00℃,已逐漸接近油藏溫度,建議采取注熱源或其他降低析蠟溫度的措施來避免油層的冷傷害。該項研究為高凝油油藏后期注水開發(fā)方式調(diào)整提供了技術(shù)指導(dǎo)。
[Abstract]:Shen-84-An12 block is a typical high-condensable oil injection development block in Liaohe oil area. In order to systematically understand the influence of long-term water injection development on the change of high condensable oil properties, rheometer is used. Differential scanning calorimeter (DSC), gas chromatograph (GC) and other analytical techniques have been used to systematically analyze the wax evolution point, wax melting point, rheology, wax content and group composition of high condensable oil in this block. The rheological properties and waxing point of crude oil were studied by using the core extracts from well Shenqian 5. The results show that the wax content of high pour point oil in this block is 31.73 ~ 39.59, the freezing point is 46 ~ 50 鈩，

本文編號：1918182