| S/D-2井欠饱和盐水钻井液技术 |
| 投稿时间：2010-10-29 修订日期：2011-02-14 点此下载全文 |
| 引用本文：赵岩,仲玉芳,王卫民,等.S/D-2井欠饱和盐水钻井液技术[J].钻探工程,2011,38(3):41-43.ZHAO Yan,ZHONG Yu-fang,WANG Wei-min,et al. Drilling Fluid Technology of Under Saturated Salt Water in Well S/D-2[J]. Drilling Engineering, 2011,38(3):41-43. |
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| 中文摘要:S/D-2井在井深2480 m以后钻遇了大段复杂的盐膏层，由于盐的溶解而造成井径扩大及盐析而结晶造成卡钻。针对上述问题，应用了聚磺欠饱和盐水钻井液体系，解决了钻遇盐膏层后的井壁失稳、钻井液污染等技术问题。详细介绍了该井聚磺欠饱和盐水钻井液的应用技术。 |
| 中文关键词:盐膏层 欠饱和盐水 钻井液 石盐井 |
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| Drilling Fluid Technology of Under Saturated Salt Water in Well S/D-2 |
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| Abstract:Rock salt is a versatile basic chemical raw material. Ordos Basin is not only rich in oil and gas resources, and Ordovician stratum in the east edge of the rock salt is one of the main salt basins also rich in resources. With the development of drilling technology, deep and ultra-deep drilling is more and more in complex formations; the higher demand of drilling fluid performance is increased. The paper introduced the case of well S/D-2: complex salt gypsum formation was encountered when drilling to the depth of 2480m, sticking happened with the enlargement of well diameter caused by salt dissolution and crystallization by salting out. According to these problems, drilling fluid system of polysulfonate under saturated brine was applied, borehole instability in salt gypsum formation, drilling fluid contamination and other technical issues were solved. |
| keywords:gypsum bed under saturated salt water drilling fluid rock salt well |
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