摘要
页岩气非常规油气开发中产生油基钻屑,属于《国家危险废物名录》(2016)中的HW08类危险废物,是影响非常规油气开发的环保难题。油基钻屑中含有大量的矿物油,通过热脱附技术能够实现油基钻屑的安全处理,既能保证处理后残渣满足环保要求,又能回收矿物油。利用室内实验装置进行了加热温度和停留时间对油基钻屑的热脱附过程影响的实验研究,并分析了处理后固相残渣和回收油的基本属性。结果表明采用热脱附技术对于油基钻屑具有良好的处理效果,经检测,处理后残渣的含油率低于1%,回收油可以重新用于配置油基泥浆,性能满足使用要求,实现了回收油的资源化再利用。
The oil-based drill cuttings generated in drilling process has been listed in "National hazardous waste directory"(HW08),which gradually become serious environmental problems.The oil-based drill cuttings,containing a large amount of mineral oil,could be managed by thermal desorption,which can not only ensure to meet environmental requirements,but also can recycle mineral oil.The effects of heating temperature and residence time on thermal desorption were analyzed by laboratory experiments,and the properties of the residues and recovered oil were also discussed.The following results were achieved.This kind of technology could not only treat oilbased drill cuttings with good effects by reducing the oil content in the residues to be less than 1% and the recycling oil could be used to make the qualified oil-base mud,making the re-utilization of resource come into truth.
出处
《油气田环境保护》
CAS
2018年第4期38-41,共4页
Environmental Protection of Oil & Gas Fields
基金
国家重大科技专项"页岩气和煤层气开发环境保护技术集成及关键装备"(2016ZX05040-006)
关键词
油基钻屑
热脱附
加热温度
停留时间
资源化
oil-based drill cuttings
thermal desorption
heating temperature
residence time
re-utilization
