
第34卷第3期 2017年5月
钻井液与完井液
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3969/j.issn.1001-5620.2017.03.011
废弃油基钻井岩屑焚烧处理基础
孙根行,王丽芳,符丹,刘沛(陕西科技大学环境科学与工程学院,西安710021)
Vol. 34 No. 3 May2017
孙根行,王丽芳,符丹,等.废弃油基钻井卷屑楚烧处理基础[1].钻井液与完井液,2017,34(3):59-63,67.
SUN Genxing, WANG Lifang, FU Dan, et al.Burning of drill cuttings from wells drilled with waste oil base drilling filuid[J] DrillingFluid&CompletionFluid,2017,34(3):59-63,67.
摘要废弃油基钻井岩屑是钻井过程中产生的固体度物,是含有矿物油、酚类化合物及重金属的复杂多相体系,已被列入国家危险废物名录。为了给废弃油基钻井岩屑资源化利用提供依据,实验研究了废弃油基钻井岩屑的含油率、含水率、高位热值、元素含量及楚烧特性。结果表明:废弃油基钻并岩屑的含渣率为74.006%,含油率为18.71%,高位热值为8000~ 9000J/g,可以在不需要辅助料的条件下稳定燃烧;度弃油基钻并岩屑的总硫含量为5.30%,可燃物组分全硫含量的平均值为1.25%,氨含量也较低,因此燃烧产生的氮氧化物及硫氧化物气体的排效量不大;氯含量为0.3467%,产生二嗯英机率较小;楚烧后的灰渣中重金属含量较低,可以回填利用。
关键词度弃油基钻井岩屑;组分分析;元素分析;热值分析;黄烧处理
中图分类号:TE923
文献标识码:A
文章编号:1001-5620(2017)03-0059-05
BurningofDrillCuttingsfromWellsDrilledwithWasteOilBaseDrillingFluid
SUN Genxing, WANG Lifang, FU Dan, LIU Pei
(College of Environmental Science and Engineering,Shaanxi University of Science and Technology,Xi'an, Shaanxi 710021) Abstract Drilled cuttings from wells drilled with oil base drilling fluids are waste solids containing mineral oils, phenol chemicals and oeeeeaeseaeessee oil base waste solids, laboratory experiments have been conducted on the oil base waste solids for their percent residue oil retained water content, gross heat value, element content and burning performance. The experimental results showed that an oil base waste solid with residue of 74.006%, retained oil of 18.71%, and gross heat value of 8,000-9,000 J/g can burn steadily, without the need for auxiliary fuels. The waste solids tested had gross sulfur of 5.3%, and the average total sulfur content in the combustible constituent was 1.25%, and the nitrogen content was low. All these factors considered, it can be concluded that the discharge of the oxides of nitrogen and the oxides of sulfur from the combustion of the waste solids would not be high. The chlorine content of the waste solids was 0.346,7%, meaning that the probability of producing dioxin would be low. Heavy metal content in the burned residue of the waste solids was low, indicating that the waste solids can be backfilled
Key words Oil base waste solids; Component analysis; Element analysis; Caloric value analysis; Dispose of by burning
填埋和焚烧是危险固体废弃物常规的处理方法[1-9]。然而对废弃油基钻井岩屑而言,填埋法对周围环境存在较大的污染风险10。楚烧法具有污染物消除彻底、减量化程度高、技术成熟、操作简单、
热能可回收等优点。对全油基废弃钻井岩屑而言,由于水分含量极低,焚烧处理的能耗很小,且废弃油基钻井岩屑的基油含量一般为20%左右,稳态运行时,无需补充燃料即可自动燃烧。由此可见,
基金项目:陕西明德环保科技有限公司2016年专项基金(MDHB-20161001);陕西科技大学博士科研启动基金项目(BJ10-06)。
第一作者简介:孙根行,1963年生,教投,博士,研究方向为水污染控制及度弃物资源化技术。通讯作者:王丽芳;电话18392410689;E-mail:18392410689@163.com。
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