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Wellbore Instability of Directional Wells in Laminated and Naturally Fractured Shales

Volumen 12, Ausgabe 2, 2009, pp. 119-130
DOI: 10.1615/JPorMedia.v12.i2.20
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ABSTRAKT

Many wellbore instability problems, such as wellbore collapse and lost circulation, occur in laminated and naturally fractured shales. These instability problems often lead to difficulty with hole cleaning, tripping, logging, and casing running, resulting in significant nonproductive time and increased costs. In this article, the stress distribution around deviated wellbores in laminated shale and sand sequences is analyzed and a modified model based on the single-plane-of-weakness theory is developed to predict the strength of laminated formations. Chemical effects resulting from the unfavorable interaction between the drilling fluid and the formation are also considered. If a chemical imbalance exists, additional wellbore instability may be encountered, which is generally worsened in naturally fractured intervals. Traditionally, nonaqueous fluids are chosen to reduce the impacts of chemically induced wellbore instability. In addition, it is generally accepted that increasing the drilling fluid salt concentration can enhance the borehole stability. This perception needs to be revised, particularly while drilling in naturally fractured shales. Both mechanical and chemical borehole instability models were applied in a case study to evaluate the potential for wellbore instability. In particular, bedding plane-related and chemically induced instability were addressed and overcome through comprehensive modeling and the deployment of modified operational procedures.

REFERENZIERT VON
  1. You Lijun, Kang Yili, Chen Zhangxin, Chen Qiang, Yang Bin, Wellbore instability in shale gas wells drilled by oil-based fluids, International Journal of Rock Mechanics and Mining Sciences, 72, 2014. Crossref

  2. Ma Tianshou, Chen Ping, A wellbore stability analysis model with chemical-mechanical coupling for shale gas reservoirs, Journal of Natural Gas Science and Engineering, 26, 2015. Crossref

  3. Liu Houbin, Cui Shuai, Meng Yingfeng, Zhao Xiangyang, Han Xu, Influence of relation between stress field and bedding space on wellbore stability in shale formation, Arabian Journal of Geosciences, 12, 20, 2019. Crossref

  4. Wang Hao, Pu Xiaolin, Structure and inhibition properties of a new amine-terminated hyperbranched oligomer shale inhibitor, Journal of Applied Polymer Science, 136, 21, 2019. Crossref

  5. Hemphill Terry , Wellbore Pressure Management in Unstable Shales: It's Not Just About Rocks, All Days, 2012. Crossref

  6. Al-Duaij Eman, AL-Bazali Talal, Time-Dependent Measurements of Shale’s Compressive Strength When Contacting Ionic Solutions, ACS Omega, 7, 29, 2022. Crossref

  7. AL-Bazali Talal, A critical investigation of diffuse double layer changes in clay-electrolyte systems at high temperatures, Journal of Geophysics and Engineering, 19, 4, 2022. Crossref

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