CN106194114B - 一种对称螺旋片式钻杆内壁刮泥器 - Google Patents

一种对称螺旋片式钻杆内壁刮泥器 Download PDF

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CN106194114B
CN106194114B CN201610828248.6A CN201610828248A CN106194114B CN 106194114 B CN106194114 B CN 106194114B CN 201610828248 A CN201610828248 A CN 201610828248A CN 106194114 B CN106194114 B CN 106194114B
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scraping blade
flight
core pipe
drilling rod
keg float
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CN106194114A (zh
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庞进
李俊南
王文
龚伟
孟凡
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Baoji Sanyang Petroleum Machinery Co ltd
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Chongqing University of Science and Technology
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

本发明公开了一种对称螺旋片式钻杆内壁刮泥器，其特征在于包括芯管、刮片组和浮桶，芯管为空心竖管，刮片周向等距分布在芯管周围构成刮片组，刮片由上螺旋片和下螺旋片构成，上螺旋片和下螺旋片螺旋方向相反上下对称分布，上螺旋片和下螺旋片连接处通过圆角过渡连接，上螺旋片和下螺旋片的内缘分别通过支臂与芯管外壁连接，刮片组上视内缘和外缘为同心圆，浮桶为带底的具有上开口的容器，浮桶上开口与芯管下开口通过螺纹相连，芯管上开口通过螺纹连接有封堵；本发明可以减少浪费和污染，清洁开支减少，可有效防止钻具水眼冻凝，螺旋状刮片更易于通过钻杆接头处，不会卡住。

Description

一种对称螺旋片式钻杆内壁刮泥器
技术领域
本发明涉及一种石油钻井用的清理钻杆内壁的工具，特别是涉及一种对称螺旋片式钻杆内壁刮泥器。
背景技术
在石油开采工程中，钻井是一项必不可少的环节，在技术进步的推动下，钻井深度不断增加，随之而来的起下钻次数也是越来越频繁，比如说更换钻头、更换井下工具、倒换钻具、短程起下钻等。在起钻过程中，钻杆内外壁总会或多或少的粘连出不少的钻井液，这不仅造成钻井液的浪费，还污染环境，清理设备工作量大，冬季钻井液冻结还容易施工人滑倒受伤，钻具内壁残存的钻井液容易造成钻具水眼冻凝，这些技术问题仍有待于技术解决。
发明内容
为了解决上述问题，本发明提供了一种对称螺旋片式钻杆内壁刮泥器。
本发明采用的技术方案为：一种对称螺旋片式钻杆内壁刮泥器，其特征在于包括芯管、刮片组和浮桶，芯管为空心竖管，刮片周向等距分布在芯管周围构成刮片组，刮片由上螺旋片和下螺旋片构成，上螺旋片和下螺旋片螺旋方向相反上下对称分布，上螺旋片和下螺旋片连接处通过圆角过渡连接，上螺旋片和下螺旋片的内缘分别通过支臂与芯管外壁连接，刮片组上视内缘和外缘为同心圆，浮桶为带底的具有上开口的容器，浮桶上开口与芯管下开口通过螺纹相连，芯管上开口通过螺纹连接有封堵。
进一步的，所述封堵上设有穿绳孔，穿绳孔内穿有吊绳。
进一步的，所述封堵上设有卡帽。
本发明使用时，在浮桶内灌注配重，然后浮桶朝下将本装置缓慢放入钻具水眼，使浮桶浮在钻井液上，刮片组位置高于钻井液液面，进行起钻作业时，相对钻杆钻井液液面相对下降，本装置也在其自重作用下相对下移，始终保持悬浮在钻井液液面，刮片刮下钻杆内壁的钻井液并向下回流，减少浪费和污染，清洁开支减少，可有效防止钻具水眼冻凝，螺旋状刮片更易于通过钻杆接头处，不会卡住，上下螺旋抵消旋转力，进入下螺旋片间隙的钻井液由上螺旋片刮下，清理彻底，刮下的钻井液沿刮片和支臂附近通道下流。
附图说明
图1为本发明实施例整体示意图。
图2为本发明实施例剖视示意图。
附图标记:1芯管；2浮桶；3上螺旋片；4下螺旋片；5圆角；6支臂；7封堵；8穿绳孔。
具体实施方式
本发明实施例如图1、2所示，该一种对称螺旋片式钻杆内壁刮泥器包括芯管1、刮片组和浮桶2，芯管为空心竖管，刮片周向等距分布在芯管周围构成刮片组，刮片由上螺旋片3和下螺旋片4构成，上螺旋片和下螺旋片螺旋方向相反上下对称分布，产生的旋转力相互抵消，上螺旋片和下螺旋片连接处通过圆角5过渡连接，刮片可由金属薄片制作，也可以采用柔性材料制作，如橡胶，可带骨，外角可倒圆角，遇到接缝处可以更好的下滑，不会卡住，上螺旋片和下螺旋片的内缘分别通过支臂6与芯管外壁连接，刮片组上视相邻刮片交错且内缘和外缘为同心圆，呈无断空环形，外缘与钻杆内壁适配，浮桶为带底的具有上开口的容器，浮桶上开口与芯管下开口通过螺纹相连，芯管上开口通过螺纹连接有封堵7，封堵上设有穿绳孔8，穿绳孔内穿有吊绳，可以用于提拉放送。
本发明使用时，在浮桶内灌注配重，然后浮桶朝下将本装置缓慢放入钻具水眼，使浮桶浮在钻井液上，刮片组位置高于钻井液液面，进行起钻作业时，相对钻杆钻井液液面相对下降，本装置也在其自重作用下相对下移，始终保持悬浮在钻井液液面，刮片刮下钻杆内壁的钻井液并向下回流，减少浪费和污染，清洁开支减少，可有效防止钻具水眼冻凝，螺旋状刮片更易于通过钻杆接头处，不会卡住，上下螺旋抵消旋转力，进入下螺旋片间隙的钻井液由上螺旋片刮下，清理彻底，刮下的钻井液沿刮片和支臂附近通道下流。
实施时，还可在封堵上设有卡帽，使用时用卡扣卡住顶部卡帽缓慢放入钻具水眼，直至刮泥器完全浮在钻具内，这时卡扣脱落，收回悬吊绳与卡扣，即可进行起钻作业。
综上所述仅为本发明较佳实施例，凡依本申请所做的等效修饰和现有技术添加均视为本发明技术范畴。

Claims (3)

1.一种对称螺旋片式钻杆内壁刮泥器，其特征在于包括芯管、刮片组和浮桶，芯管为空心竖管，刮片周向等距分布在芯管周围构成刮片组，刮片由上螺旋片和下螺旋片构成，上螺旋片和下螺旋片螺旋方向相反上下对称分布，上螺旋片和下螺旋片连接处通过圆角过渡连接，刮片为金属片或橡胶片，上螺旋片和下螺旋片的内缘分别通过支臂与芯管外壁连接，刮片组上视内缘和外缘为同心圆，外缘与钻杆内壁适配，浮桶为带底的具有上开口的容器，浮桶上开口与芯管下开口通过螺纹相连，芯管上开口通过螺纹连接有封堵。
2.根据权利要求1所述的一种对称螺旋片式钻杆内壁刮泥器，其特征在于所述封堵上设有穿绳孔，穿绳孔内穿有吊绳。
3.根据权利要求1所述的一种对称螺旋片式钻杆内壁刮泥器，其特征在于所述封堵上设有卡帽。
CN201610828248.6A 2016-09-18 2016-09-18 一种对称螺旋片式钻杆内壁刮泥器 Active CN106194114B (zh)

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CN200964830Y (zh) * 2006-07-21 2007-10-24 中国海洋石油总公司 用于油管和钻杆的自浮式刮油器
RU2393333C1 (ru) * 2009-03-20 2010-06-27 Виктор Егорович Александров Устройство для очистки внутренней поверхности насосно-компрессорной трубы (варианты)
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CN205277372U (zh) * 2016-01-13 2016-06-01 崔代勇 钻井起钻钻杆内壁刮泥装置
CN206000516U (zh) * 2016-09-18 2017-03-08 重庆科技学院 一种对称螺旋片式钻杆内壁刮泥器

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