松科2 井特殊钻进工艺下钻井液技术

郑文龙; 乌效鸣; 朱永宜; 王稳石; 张林生; 许洁

doi:10.13639/j.odpt.2015.03.008

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松科2 井特殊钻进工艺下钻井液技术

郑文龙, 乌效鸣, 朱永宜, 王稳石, 张林生, 许洁

文章导航 > 石油钻采工艺 > 2015 > 37(3): 32-35

郑文龙, 乌效鸣, 朱永宜, 王稳石, 张林生, 许洁. 松科2 井特殊钻进工艺下钻井液技术[J]. 石油钻采工艺, 2015, 37(3): 32-35. doi: 10.13639/j.odpt.2015.03.008

引用本文:

郑文龙, 乌效鸣, 朱永宜, 王稳石, 张林生, 许洁. 松科2 井特殊钻进工艺下钻井液技术[J]. 石油钻采工艺, 2015, 37(3): 32-35. doi: 10.13639/j.odpt.2015.03.008

ZHENG Wenlong, WU Xiaoming, ZHU Yongyi, WANG Wenshi, ZHANG Linsheng, XU Jie. Drilling fluid technique for special drilling technology in SK-2 Well[J]. Oil Drilling & Production Technology, 2015, 37(3): 32-35. doi: 10.13639/j.odpt.2015.03.008

Citation:

ZHENG Wenlong, WU Xiaoming, ZHU Yongyi, WANG Wenshi, ZHANG Linsheng, XU Jie. Drilling fluid technique for special drilling technology in SK-2 Well[J]. Oil Drilling & Production Technology, 2015, 37(3): 32-35. doi: 10.13639/j.odpt.2015.03.008

松科2 井特殊钻进工艺下钻井液技术

doi: 10.13639/j.odpt.2015.03.008

1.
中国地质大学武汉，湖北武汉　430074
2.
中国地质科学院勘探技术研究所，河北廊坊　065000
3.
重庆睿智石油天然气技术服务有限公司，重庆　404100

详细信息

中图分类号: TE254

Drilling fluid technique for special drilling technology in SK-2 Well

1.
China University of Geosciences, Wuhan 430074,China
2.
Institute of Exploration Techniques, CAGS, Langfang 065000,China
3.
Ruizhi Oil and Gas Technology Service Co. Ltd., Chongqing 404100, China

摘要: 松科2 井为国际大陆科学钻探计划（ICDP）支持的全球第一口钻穿白垩纪陆相沉积地层的大陆科学钻探井。该井二开（2 840 m）钻遇地层中伊蒙混层、伊利石和高岭石等黏土矿物总含量高达60% 以上，易水化分散导致缩颈和垮塌；二开上部套管?508 mm，下部井径?215.9 mm，上下两部分井径相差悬殊而导致岩屑返排困难。通过XRD 衍射矿物鉴定、室内钻井液材料复配以及现场岩心浸泡等实验分析，优选出适宜于大口径?311.2 mm 和?215.9 mm 取心工作的低成本钻井液体系。现场应用过程中，钻井液动塑比维持在0.45~0.82 Pa/（mPa·s），润滑系数控制在0.11~0.14，泥饼黏附系数0.12~0.15，有效解决了携岩困难问题，并降低了长裸眼卡钻风险。在大口径取心试验、正式设计取心与全面钻进等作业频繁更换以及钻井液性能不断调整过程中，井内未发生大的坍塌与掉块，圆满完成了在491.12~510.94 m 段?311.2 mm 口径试取心试验，以及1 074.00~1 148.01 m 和1 182.74~1 256.01 m 段的?215.9 mm 口径设计取心任务。
- 松科2 井 /
- 大陆科钻 /
- 特殊钻进工艺 /
- 钻井液 /
- 裸眼 /
- 润滑 /
- 携岩 /
- 取心
Abstract: SK-2 Well, supported by ICDP (International Continental Drilling Program), is the first continental scientific exploratory well in the world which penetrates the continental Cretaceous sedimentary formations. In the second spud (2 840 m), the total clay minerals of illite/smectite layer, illite and kaolinite in the formations encountered by the well was up to over 60%, which are easily hydrated, leading to tight hole and collapse. The upper casing in 2nd spud was ?508 mm, and the lower hole size was ?215.9 mm. The large difference between the upper and lower holes led to difficulty in flowback of cuttings. Through mineral identification by XRD diffraction, indoor compounding of drilling fluid materials and experiment on field core soaking, the low-cost drilling fluid system was selected which was applicable to coring in large holes of ?311.2 mm and ?215.9 mm. In field application, the ratio of dynamic shear force of drilling fluid was maintained at 0.45 to 0.82 Pa/(mPa·s), the lubricating coefficient was controlled at 0.11 to 0.14, and sticking coefficient of filter cake was 0.12 to 0.15, which effectively addressed the problems of carrying cuttings and reduced the risk of stuck pipe in long open hole. No large collapsing and sloughing occurred downhole during frequent alternating of coring test in large hole, formal designed coring and non-coring drilling jobs and during continuous conditioning of drilling fluid properties, and the experiments of ?311.2 mm core drilling in 491.12 m to 510.94 m and ?215.9 mm core drilling in 1 074.00 m to 1 148.01 m and 1 182.74 m to 1 256.01 m as designed were successfully completed.
- SK-2 Well /
- continental scientific drilling /
- special drilling technology /
- drilling fluid /
- open hole /
- lubrication /
- carrying cutting /
- coring

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松科2 井特殊钻进工艺下钻井液技术

doi: 10.13639/j.odpt.2015.03.008

1. 中国地质大学武汉，湖北武汉　430074

2. 中国地质科学院勘探技术研究所，河北廊坊　065000

3. 重庆睿智石油天然气技术服务有限公司，重庆　404100

收稿日期: 2019-05-23
修回日期: 2019-05-23
刊出日期: 2015-06-23

中图分类号: TE254

关键词:

松科2 井 /

大陆科钻 /

特殊钻进工艺 /

钻井液 /

裸眼 /

润滑 /

携岩 /

取心

摘要: 松科2 井为国际大陆科学钻探计划（ICDP）支持的全球第一口钻穿白垩纪陆相沉积地层的大陆科学钻探井。该井二开（2 840 m）钻遇地层中伊蒙混层、伊利石和高岭石等黏土矿物总含量高达60% 以上，易水化分散导致缩颈和垮塌；二开上部套管?508 mm，下部井径?215.9 mm，上下两部分井径相差悬殊而导致岩屑返排困难。通过XRD 衍射矿物鉴定、室内钻井液材料复配以及现场岩心浸泡等实验分析，优选出适宜于大口径?311.2 mm 和?215.9 mm 取心工作的低成本钻井液体系。现场应用过程中，钻井液动塑比维持在0.45~0.82 Pa/（mPa·s），润滑系数控制在0.11~0.14，泥饼黏附系数0.12~0.15，有效解决了携岩困难问题，并降低了长裸眼卡钻风险。在大口径取心试验、正式设计取心与全面钻进等作业频繁更换以及钻井液性能不断调整过程中，井内未发生大的坍塌与掉块，圆满完成了在491.12~510.94 m 段?311.2 mm 口径试取心试验，以及1 074.00~1 148.01 m 和1 182.74~1 256.01 m 段的?215.9 mm 口径设计取心任务。

English Abstract

Drilling fluid technique for special drilling technology in SK-2 Well

1. China University of Geosciences, Wuhan 430074,China

2. Institute of Exploration Techniques, CAGS, Langfang 065000,China

3. Ruizhi Oil and Gas Technology Service Co. Ltd., Chongqing 404100, China

Received Date: 2019-05-23
Rev Recd Date: 2019-05-23
Publish Date: 2015-06-23

Keywords:

Abstract: SK-2 Well, supported by ICDP (International Continental Drilling Program), is the first continental scientific exploratory well in the world which penetrates the continental Cretaceous sedimentary formations. In the second spud (2 840 m), the total clay minerals of illite/smectite layer, illite and kaolinite in the formations encountered by the well was up to over 60%, which are easily hydrated, leading to tight hole and collapse. The upper casing in 2nd spud was ?508 mm, and the lower hole size was ?215.9 mm. The large difference between the upper and lower holes led to difficulty in flowback of cuttings. Through mineral identification by XRD diffraction, indoor compounding of drilling fluid materials and experiment on field core soaking, the low-cost drilling fluid system was selected which was applicable to coring in large holes of ?311.2 mm and ?215.9 mm. In field application, the ratio of dynamic shear force of drilling fluid was maintained at 0.45 to 0.82 Pa/(mPa·s), the lubricating coefficient was controlled at 0.11 to 0.14, and sticking coefficient of filter cake was 0.12 to 0.15, which effectively addressed the problems of carrying cuttings and reduced the risk of stuck pipe in long open hole. No large collapsing and sloughing occurred downhole during frequent alternating of coring test in large hole, formal designed coring and non-coring drilling jobs and during continuous conditioning of drilling fluid properties, and the experiments of ?311.2 mm core drilling in 491.12 m to 510.94 m and ?215.9 mm core drilling in 1 074.00 m to 1 148.01 m and 1 182.74 m to 1 256.01 m as designed were successfully completed.

郑文龙, 乌效鸣, 朱永宜, 王稳石, 张林生, 许洁. 松科2 井特殊钻进工艺下钻井液技术[J]. 石油钻采工艺, 2015, 37(3): 32-35. doi: 10.13639/j.odpt.2015.03.008

引用本文:

郑文龙, 乌效鸣, 朱永宜, 王稳石, 张林生, 许洁. 松科2 井特殊钻进工艺下钻井液技术[J]. 石油钻采工艺, 2015, 37(3): 32-35. doi: 10.13639/j.odpt.2015.03.008

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松科2 井特殊钻进工艺下钻井液技术

doi: 10.13639/j.odpt.2015.03.008

Drilling fluid technique for special drilling technology in SK-2 Well

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出版历程

松科2 井特殊钻进工艺下钻井液技术

doi: 10.13639/j.odpt.2015.03.008

1. 中国地质大学武汉，湖北武汉 430074 2. 中国地质科学院勘探技术研究所，河北廊坊 065000 3. 重庆睿智石油天然气技术服务有限公司，重庆 404100

English Abstract

Drilling fluid technique for special drilling technology in SK-2 Well

1. China University of Geosciences, Wuhan 430074,China 2. Institute of Exploration Techniques, CAGS, Langfang 065000,China 3. Ruizhi Oil and Gas Technology Service Co. Ltd., Chongqing 404100, China

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目录

1. 中国地质大学武汉，湖北武汉　430074

2. 中国地质科学院勘探技术研究所，河北廊坊　065000

3. 重庆睿智石油天然气技术服务有限公司，重庆　404100

1. China University of Geosciences, Wuhan 430074,China

2. Institute of Exploration Techniques, CAGS, Langfang 065000,China

3. Ruizhi Oil and Gas Technology Service Co. Ltd., Chongqing 404100, China