钻井液与完井液2017，Vol.34Issue(5)：14-19,6.DOI:10.3969/j.issn.1001-5620.2017.05.003
纳米材料钻井液在大港油田的应用
Application of a Nanomaterial Drilling Fluid in Dagang Oilfield
摘要
Abstract
Nanomaterials have been more and more used in drilling fluids, gaining good results in drilling operation. It has been found in the field application that the nanomaterials always become aggregated as the concentrations increase, making it difficult for the nanomaterials to take effect. Based on the study of the mechanisms of nanomaterial aggregation, a nanomaterial was grafted to render it good dispersity in drilling fluid. The molecules of the nanomaterial have good flexibility and deformability. The molecules of the nanomaterial can be adsorbed on the surface of rocks, thereby enhancing the ability of the nanomaterial to plug micro fractures and fissures. A nanomaterial filter loss reducer has been synthesized to formulate a drilling fluid with other nanomaterial additives, such as lubricant and shale inhibitor. The nanomaterial drilling fluid functions properly at 150 ℃, and has properties as follows: API filter loss ≤2.4 mL, HTHP filter loss≤9.8 mL, coefficient of friction≤0.04, percent recovery of permeability of cores ≥ 91％, and percent recovery of drilled cuttings in hot rolling test≥90.5％. Field application has shown that the nanomaterial drilling fluid had good lubricity and reservoirs drilled were effectively protected from being damaged.关键词
防止地层损害/纳米材料/钻井液添加剂/钻井完井液/渗透率恢复值/低孔低渗Key words
Reservoir protection/Nanomaterial/Drilling fluid additive/Drill-in-Fluid/Recovery of permeability/Low porosity and low permeability分类
能源科技引用本文复制引用
郑淑杰,蒋官澄,肖成才,王小月,马劲松..纳米材料钻井液在大港油田的应用[J].钻井液与完井液,2017,34(5):14-19,6.基金项目
中国石油化工联合基金重点支持项目"页岩气钻探中的井壁稳定及高效钻完井基础研究"(U1262201). （U1262201）
