1) borehole instability
井壁失稳
1.
In the present,the typical experience can't solve all the problems of borehole instability.
以伊利石、伊蒙混层为主的硬脆性泥页岩微裂缝发育,容易引起井壁失稳,一直未能找到很好的评价方法。
2.
On the bases of mechanisms of borehole instability in hard brittle shale,one mud system have been established which is suitable for the formations of the hard brittle shale-the silicate drilling fluids.
在研究硬脆性泥页岩井壁失稳机理的基础上,有针对性的研制了一套适于硬脆性泥页岩地层的水基硅酸盐钻井液体系。
4) borehole stability
井壁稳定
1.
A new method of predicting borehole stability while drilling based on seismic attribute technology;
基于地震属性技术的井壁稳定随钻预测新方法
2.
Research on in-situ stresses and borehole stability of coal seam in Jingbian gas field
靖边气田煤层地应力及井壁稳定研究
3.
Mechanical borehole stability test study in highly-dipped laminated formation
高陡层理性地层井壁稳定性模拟试验研究
5) hole stabilization
井壁稳定
1.
Based on the analysis of drilled well information in BZ34-2 oilfield, the safe mud density window is presented by applying the technology of hole stabilization and systemically analyzing insitu stress, log data and well testing data.
对渤中34-2油田已钻井资料分析的基础上,利用井壁稳定分析技术,通过对地应力的分析,结合测井资料、测试资料确定了该油田安全钻井液密度窗口,并成功应用于该油田P1S井的钻井作业中。
6) sidewall stability
井壁稳定
1.
Technology research on sidewall stability of Weizhou12-1 in Wei2 area of north oilfield;
涠洲12-1北油田涠二段井壁稳定性技术
2.
Application of sidewall stability technology in Weizhou11-1 oilfield;
井壁稳定技术在涠洲11-1油田的应用
3.
This article analyzed the effects of working fluid on sidewall stability during gas and fluid conversion, thereby the requests to drilling mud performance were put forward for transformation.
针对气体钻井过程中地层出水、扭矩、摩阻过大或起下钻困难、影响钻井安全等复杂情况的发生而不得不转换成常规钻井液钻井的问题,通过对气液转换过程中工作液对井壁稳定的影响机理分析,由此而提出气液转换对钻井液性能要求,提出进行钻井液转换时可考虑先采用较低密度的钻井液,待钻井液在井壁形成滤饼后再提高钻井液密度平衡地层流体,所选用的水基钻井液可以考虑强抑制乳化防塌钻井液、非渗透钻井液、聚硅醇钻井液、设计者钻井液(designermud)、MEG钻井液和聚合物沥青钻井液。
补充资料：裂纹失稳扩展
分子式：
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条