第34卷第3期 2017年5月
钻井液与完井液
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3969/j.issn.1001-5620.2017.03.002
抗高温无固相钻井液技术
李建军，王中义
（大庆钻探工程公司钻井工程技术研究院，黑龙江大庆163413）
李建军，王中义.抗高温无圈相钻井液技术[.钻井液与完井液，2017，34（3：11-15.
Vol.34 No.3 May2017
LI Jianjun, WANG Zhongyi.High temperature solid-free drilling fluid technology[Jj.Drilling Fluid & Completion Fluid, 2017, 34 (3): 11-15
摘要针对钻并液易高湿变性的特点，通过研制出耐高温增黏剂XCC、降滤失助剂AADC、封堵剂FSCC，设计出一种无固相抗220℃超高温的钻液配方。具体加量配比为2%XCC+1%AADC+3%SPNH+1%SMP+3%FSCC+0.5%Na,SO,。并对其进行性能表征，SEM显示其页岩层状微裂缝及碎片得到了明显封堵与修饰，在泥页岩表面形成与微裂缝方向平行的致密树状聚合层；FT-IR结果表明，该抗高温钻并液经过220℃高温老化后性能稳定，具有良好的流变性能和滤失造壁性能，抑制和润清性能满足钻井需要；能抗10%黏土与5%钻屑的污染，同时对10%KCI+20%NaCI的整溶液也有较好的抵抗能力；该钻并液ECso的检测结果大于80000mg/L，达到了建议排放标准。最终抗220超高温钻并液XCC/AADC/SPNH/SMP/ FSCC在湿北1号气田24并得到了成功应用。
关键调抗高温；无固相；钻井液；XCC/AADC/SPNH/SMP/FSCC；流变性
中图分类号：TE254.3
文献标识码：A
文章编号：1001-5620（2017）03-0011-05
High Temperature Solid-free Drilling Fluid Technology
LI Jianjun, WANG Zhongyi
(Research Institute ofDrillingEngineeringTechnology,DaqingDrilling Engineering Corporation,
Daqing, Heilongjiang 163413)
Abstract A solid-free drilling fluid having stable properties at 220 °C has been developed with high temperature additives such as XCC(viscosifier), AADC (filter loss reducer) and FSCC (plugging agent). The detailed composition of the drilling fluid is: 2%XCC+1% AA DC+3%SPNH+1%SMP+3%FSCC+0.5%Na,SO, SEM experiment showed that shale cores taken from a well drlled with this drilling fluid had layered micro-fractures apparently plugged, and a dense tree-like polymer layer parallel to the direction of the micro-fractures was found on the surface of the shale cores. FT-IR experimental results showed that, after aging at 220 °C, the drilling fluid still had stable mud properties, good rheology and filtration properties. The inhibitive capacity and lubricity of the drilling fluid can satisfy the needs of drilling operation. This drilling fluid was able to tolerate the contamination from 10% clay and 5% drilled cuttings, or from 10%KCI+20%NaC1 salt solution. The LC50 of the drilling fluid measured was 80,000 mg/L, conforming to the stipulated discharge criteria. The drilling fluid has been successfully used to drill the Well 24 located in the Sebei-1 gas field
Key words High temperature resistant; Solids-free; Drilling fluid; XCC/AADC/SPNH/SMP/FSCC; Rheology
目前，国内外无固相钻井液（增黏剂+降滤失剂+封堵剂）的合成及制备首选都是高分子聚合物钻井液，如海泡石钻井液、多层硅钻井液、褐煤表面活性剂钻井液等，但这些聚合物的性质不一，尤其在其关键性能指标方面存在着较大差异及
不确定性。处理剂的抗高温、抗盐能力一直是限制很多钻井液实际应用的最主要原因。从20世纪80 年代到现在，无固相钻井液有了很快的发展，以甲酸盐钻井液的应用最为广泛，尤其在塔河油田、大港油田成功地实施与应用(2-3)，但其也有较多缺点，
基金项目：大庆油田公司项目“大庆油田抗高湿抗盐钻井液技术研究与应用”。
第一作者简介：李建军，二级工程师，主要负责深井及超深井抗高温抗盐钻井液技术服务工作。电话13836990612；
E-mail : lijianjun_zycnpc.com.cn。万方数据