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CEMENT FOR DEEP DRILLING AND METHOD FOR PRODUCING IT
CEMENT FOR DEEP DRILLING AND METHOD FOR PRODUCING IT
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机译:深层钻井水泥及其生产方法
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摘要
The invention relates to a deep-drilling cement consisting of a hydraulic binder and, if appropriate, additives and aggregates. In order to obtain high strengths coupled with low density of a mud prepared therefrom, plastic powder is admixed in a quantity of about 50 to 800 kg/m3 of mud, the plastic powder consisting of tough-hard or brittle, alkali-resistant particles which have a grain size smaller than about 2 mm and which are unfilled or lightly filled and do not drastically reduce their tensile strength until at least about 10 DEG C above the particular maximum static drill-hole temperature. IMAGE
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机译:本发明涉及一种由水硬性粘结剂以及合适的话添加剂和骨料组成的深钻水泥。为了获得高强度以及由此制得的泥浆的低密度,将塑料粉以约50至800kg / m 3的泥浆的量混合,该塑料粉由坚硬或脆性的碱金属组成。尺寸小于约2毫米且未填充或轻度填充且直到高于特定最大静态钻孔温度至少约10℃之前,不会显着降低其抗拉强度的抗磨颗粒。 <图像>
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