塔河油田井筒沥青质堵塞解堵剂的研制.pdf

化工进展
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2015年第34卷第10期
w
应用技术
塔河油田井筒沥青质堵塞解堵剂的硏制
丁保东,杨祖国,许艳艳,邢钰,程伸富,欧阳冬,李淑杰
(中国石油化工股份有限公司西北油田分公司,石油工程技术研究院,新疆乌鲁木齐830011)
摘要:塔河油田部分油井存在沥青质严重沉积堵塞井筒的问题,针对这一间题研制了一种高效沥青分散解堵剂,
强渗透分散组分能够有效地渗透分散沥青质颗粒,油浤性阳离子表面活性剂能够吸附在沥青质颗粒表面增加稳
定性,高效溶剂能够部分溶解沥青质,结果表明:沥青分散解堵剂能够有效地溶解分散沥青质,70℃下平均溶
解效率为81.1%,高于其他市信药剂,现场试验取得較好的效果。
关键词:石油;沥青质;沉积物;溶解;沥青解堵剂
中图分类号:TE39文献标志码:A文章编号:1000-6613(2015)10-3814-05
DOL:10.16085jisn.1000-6613.2015.,10.046
Development of blocking remover for borehole asphaltine plugging in
lahe oilfield
DING Baodong, YANG Zuguo, XU Yanyan, XING Yu, CHENG Zhongfu, OUYANG Dong, LI Shujie
( Northwest Oilfield Branch of SINOPEC, Institute of Petroleum Engineering Technology, Urumqi 830011, Xinjiang, China)
Abstract: Because of asphaltine deposition, in some oil wells, there was serious asphaltine plugging
For this problem, a highly-efficient asphaltine plugging remover was developed. One component with
strong penetration ability could make asphaltine deposition disperse to small asphaltine particles
Oil-soluble cationic surfactant could absorb small asphaltine particles onto the surface, which could
prevent the clustering of these asphaltine particles. An efficient solvent for asphaltine was also added
The result indicated that the asphaltine plugging remover could disperse and dissolve the asphaltine
deposition effectively, on the average, 81.1% of asphaltine deposition could been dissolved in this
asphaltine plugging remover at 70C, the ability was better than that of samples from market, and a
good result was also obtained in field tests
Key words: petroleum: asphaltine; deposition; dissolution; asphaltine plugging remover
塔河油田受多期成彍影响,原油各向物性差异差。关于油井是否堵塞、堵塞周期多长等问题,
大,既有常规原油,也有超稠油叫。原油压力、温般依据经验,且疏于防堵而倾向于解堵。前期采取
度变化大(油层流压37.88MPa,油压约1MPa,地的解堵措施主要有:刮管、周期性注入热油或解堵
层温度116℃,油井井口温度25℃),沥青质容易剂。但是,由于沥青质质地较硬,刮管遇阻风险大
析出沉积堵塞井筒。石油作为胶体体系,只有当热油解堵效果差;另外大部分高效沥青质解堵剂含
原油中各组分含量在一定的比例范围内,石油体系有油田禁用的有机氯溶剂。亟需研发不含有机氯的
才能处于相对平衡状态。在沥青质沉积过程中,高效沥青质分散解堵剂。本文讨论了塔河油田沥青
范德瓦尔斯相互作用能在沥青质缔合体的相互作用
能中占据主导的地位,静电相互作用能相对较小。
收稿日期:2015-01-23;修改稿日期:2015-02-09。
基金项目:国家863计划项目(2013AA064302)
尽管研究沥青质的沉积模型的比较多,相对于现第一作者及联系人:丁了保东(19-),男,士,工程师,主要从事
场来说,由于一些参数取得相对困难,实用性比较油田化学药剂、エ艺等方面的研究。 E-mail dingbaod(QI63com