| 超高密度水基钻井液滤失造壁性控制原理 |
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| 引用本文： | 匡韶华,蒲晓林,柳燕丽.超高密度水基钻井液滤失造壁性控制原理[J].钻井液与完井液,2010,27(5). |
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| 作者姓名： | 匡韶华 蒲晓林 柳燕丽 |
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| 作者单位： | 1. 辽河油田钻采工艺研究院,辽宁盘锦;西南石油大学CNPC钻井液重点实验室,成都
2. 西南石油大学CNPC钻井液重点实验室,成都 |
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| 摘 要： | 加重剂是影响超高密度水基钻井液滤失造壁性的重要因素。从理论上分析了加重剂沉降以及加重剂表面水化作用对钻井液滤失造壁性的影响,得出加重剂颗粒的沉降以及其表面水化能力是影响滤失造壁性的重要因素。由此提出了稳定超高密度水基钻井液静态滤失的技术思路,即通过改善加重剂的沉降稳定性和表面水化能力来控制钻井液的滤失造壁性。提出了采用一种能吸附在加重剂表面,增大其表面Zeta电位绝对值和水化能力的处理剂来改善超高密度水基钻井液滤失造壁性的技术方法。研究出一种润湿分散剂GR,室内实验评价了其对加重剂表面Zeta电位的影响,以及对超高密度水基钻井液沉降稳定性和滤失量的影响。研究结果表明,GR可显著提高加重剂的Zeta电位绝对值,并能明显改善钻井液的沉降稳定性和滤失造壁性,从而验证了该技术方法的可行性。
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| 关 键 词： | 水基钻井液 超高密度 滤失造壁性 沉降稳定性 润湿分散剂 |
Principles of Controlling Wall Building Properties of Ultra-high Density Water Based Drilling Fluid |
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| KUANG Shaohua,PU Xiaolin,LIU Yanli.Principles of Controlling Wall Building Properties of Ultra-high Density Water Based Drilling Fluid[J].Drilling Fluid & Completion Fluid,2010,27(5). |
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| Authors: | KUANG Shaohua PU Xiaolin LIU Yanli |
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| Affiliation: | KUANG Shaohua,PU Xiaolin,LIU Yanli Drilling and Production Research Center,Liaohe Oilfield,Panjin,Liaoning 124010,China |
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| Abstract: | Weighting agent is the important factor affecting the wall building property of ultra-high density water based drilling fluid.The sedimentation and hydration of weighting agents are the important factors affecting the wall building property of ultra-high density water-base drilling fluid.A technical method,involving the use of a special treating-agent which can absorb on the surface of weighting agents and increase the zeta potential and hydratability,is proposed.A wetting and dispersing agent GR is develop... |
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| Keywords: | Water based drilling fluid Ultra-high density Wall building property Sedimentation stability Wetting and dispersing agent |
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