期刊文献+

水基硅酸盐钻井液的页岩井眼稳定性研究 被引量:10

Study on wellbore stability in water based silicate drilling fluid
下载PDF
导出
摘要 结合室内实验数据,分析了硅酸盐钻井液粘土稳定作用的主要影响因素。结果表明,硅酸盐的模数在2.8—3.2、加量在3%—5%时钻井液抑制性能较好,无机盐与硅酸盐的协同效应提高了硅酸盐的抑制性能。提出硅酸盐稳定页岩井壁的机理为:硅酸盐形成凝肢与沉淀堵塞微裂缝与页岩孔隙,阻止滤液进入地层,减少压力穿透;抑制粘土矿物水化膨胀与分散;与无机盐协同作用阻止水进入地层;与粘土矿物反应导致渗透率降低等。 Silicate based drilling fluid is very popular for its wide application in deep wells and easy maintenance. This paper tries to explain its wellbore stability mechanism with analysis and tests. Results show that it achieves best shale inhibition when the modulus is between 2. 8-3. 2 and the dosage is in the range of 3% -5%. The wellbore stability mechanism can be concluded like this: sediments and gels produced plug the microfractures and pores of shale, thus prevent the invasion of filtrate into formation and inhibit clay hy-dration and dispersion; their combination with inorganic salts prevent the entrance of water into formation, and its interaction with clay minerals reduces the permeability, etc.
出处 《钻井液与完井液》 CAS 2000年第3期25-27,共3页 Drilling Fluid & Completion Fluid
关键词 水基钻井液 硅酸盐 抑制性 页岩控制 井眼稳定 water base mud silica shale control hole stabilization
  • 相关文献

参考文献4

  • 11VanOocrtE,etal.SilicateBasedDrillingFluids:Competent,CostEffeiveandBenignSolutionstoWellboreStabilityProblems.IADC/SPE35059
  • 2越雄虑译.国外钻井技术,1998,(2).
  • 33BaileyL,SawdonC,etal.NewInsightIntotheMechanismsofShaleInhibitonUsingWaterBasedSilicateDerillingFluid.IADC/SPE39401
  • 4梁大川.硅酸盐钻井液稳定井壁机理分析[J].西南石油学院学报,1998,20(2):53-55. 被引量:40

二级参考文献1

  • 1金军.MSPC泥浆—一种新型深井淡水泥浆[J]石油钻采工艺,1984(05).

共引文献39

同被引文献143

引证文献10

二级引证文献96

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部