CN101617016B - 用于去除高角度井内钻屑的方法和装置 - Google Patents
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- E21—EARTH OR ROCK DRILLING; MINING
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- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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Abstract
去除钻屑的方法包括以下步骤：将管柱放置在高角度井眼内，使泥浆循环通过井眼并形成螺旋围绕管柱的一部分的泥浆的粘性联接层。其中井眼可偏离竖直方向三十度或更大。粘性联接层理想地向外延伸超过管柱的该部分内工具接头镦粗部的外径。用于形成螺旋围绕管子的钻探流体的粘性联接层以从高角度井去除钻屑的管接头包括细长管，该细长管具有在相对工具接头之间延伸的外表面，工具接头镦粗部和突起基本上设置在整个外表面上。
Description
技术领域
本发明一般地涉及井眼中的钻屑去除，且更具体地涉及用于去除高角度井眼中钻屑的方法和装置。
背景技术
在钻探操作和类似操作中，钻探流体或泥浆通过钻杆柱向下循环，循环出管柱底部并通过井眼返回到表面。在其其它目的中，钻探泥浆从井眼去除钻屑和碎屑，在高角度井眼中，重力矢量基本上是竖直的，且泥浆的速度矢量偏离竖直方向并且在井眼的各部分内可以是水平或基本上水平的。因此，钻屑倾向于下沉到井眼的下侧并形成钻屑床。改进钻屑去除的试图包括增加管道的旋转速度、增加泥浆的流率以及用很小的作用改变泥浆的流变性。此外，井眼条件和/或装备局限性限制了这些选项。
因此，要求提供一种用于改进在高角度井眼中去除钻屑的***和方法。
发明内容
因而，提供用于从高角度井眼去除钻屑的装置和方法。在一实施例中，一种去除钻屑的方法包括以下步骤：将管柱放置在高角度井眼内，使泥浆循环通过井眼并形成螺旋围绕管柱的一部分的泥浆的粘性联接层。其中井眼可偏离竖直方向三十度或更大。粘性联接层理想地向外延伸超过管柱的该部分内工具接头镦粗部(upset)的外径。
在某些实施例中，一种管子，当管子旋转以去除高角度井眼中的钻屑时会形成围绕所述管子的钻探泥浆的螺旋粘性联接层，所述管子包括细长管，该细长管具有在相对工具接头之间延伸的外表面，工具接头镦粗部和突起基本上设置在整个外表面上。
理想的是，各突起会形成选择成形成深度大于工具接头镦粗部的粘性联接层的粗糙度。可单独根据井眼直径、管直径、管转速或泥浆流变性或其组合选择该粗糙度以形成延伸超过管接头镦粗部深度的粘性联接层。
上文已概述了本发明的特征和技术优点以更好地理解以下本发明的详细说明。此后将描述形成本发明权利要求书的主题的本发明的其它特征和优点。
附图说明
结合附图阅读参照本发明的具体实施例的以下详细说明会清楚地理解本发明的前述和其它特征和各方面，附图中：
图1是示出去除钻屑的高角度井眼的示意图；
图2是图1的高角度井眼的端视图；以及
图3是高角度井眼的侧视图，其中使用本发明的实施例从井眼去除钻屑。
具体实施方式
现参照附图，其中所示构件不一定是按比例示出，且其中在几幅附图中相同或类似的部件用相同的标号表示。
本文中所使用的表示给定点或构件的相对位置的术语“上”和“下”、以及“上部”和“下部”和其它术语用于更清楚地描述本发明的各实施例的某些构件。通常，这些术语涉及参考点，钻探作业从其开始的表面为顶点，且钻井的总深度为最低点。
图1是示出从井眼去除钻屑的高角度井眼12的立体图。本文所描述的高角度井眼是从竖直方向偏离约30度或更大角度的井眼，且尤其是指偏离竖直方向约65度或更大角度的井眼。井眼12可以是具有通过围绕形式形成的壁14或至少部分通过铸造形成的壁14的开口孔。
由多个管接头16构成的管柱设置在井眼12内以引导钻探作业。各接头16包括用于连接到相邻管接头16的工具接头18。钻探流体或泥浆20沿管柱向下被抽吸出端部并通过井眼管柱环面循环返回到表面，如箭头所示。使用泥浆20的目的是从井眼12去除钻屑22。
在高角度井中，钻杆16倾向于设置在井眼12的下侧，且钻探泥浆20流过井眼12的高侧。已经注意到在层流情况下，钻探泥浆20形成由虚线确定的流动通道24。钻探泥浆20倾向于以较高速度流过与井眼12的其它区域相对的流动通道24。当钻屑22被泥浆20带上井眼12时，重力使钻屑22落到井眼12的下侧，该下侧通常形成钻屑床26。随着钻屑床26的深度增加，井眼12的有效直径降低并发生管粘附。
参照图2，示出图1的井眼12的端视图。在层流情况下，泥浆20的流动通道24靠近井眼12的高侧形成。井眼12在流动通道24和钻屑床26之间的区域这里称为死区28。死区28内的钻屑22下沉到井眼12的下侧并与向井眼12上面运送相反向形成钻屑床26。
要增加钻探泥浆的流率就会增大流体通道24的尺寸，直到平衡状态为止，其中泥浆流率的额外增加看来不会提供任何优点。通过如箭头30所示旋转钻杆16，显示出在钻屑22去除方面的某些优点。但是，已经注意到，钻杆16的增加的转速并不充分清除井眼12，且在例外地高角度的井中增加转速并不会减轻钻屑床26的形成。此外，由于装备限制或由于由增加转速所引起的同等循环密度的增加，在很多情况下不能选择高转速。
参照图3，示出本发明的总体标以标号10的钻屑去除***和方法的实施例。钻屑去除***10包括管柱32，管柱32包括在各端具有工具接头36的多个互连的管接头34。各接头34具有工具接头镦粗部(镦粗部)38，这是工具接头36的外径和接头34的外径之间的距离。
在本发明的一实施例中，钻屑去除接头34包括基本上在其相对工具接头36之间延伸的粗糙的或有纹理的表面40。管34包括突起42以形成粗糙表面40。在制造期间或通过涂敷或机加工表面40可在管34上形成突起42。突起42可包括(而非限制)突脊、锯齿或微粒。当管柱32如箭头30所示旋转时，粗糙表面40会形成围绕它的螺旋粘性联接层44。
粘性联接层44具有大于工具接头镦粗部38的宽度，且因此延伸超过工具接头36的外径。粘性联接层44围绕管柱32螺旋运动，将钻屑22带到流动通道24内以从井眼12去除。应当注意，表面40的粗糙度或纹理可变化以适应井眼12特征，这些特征诸如但不限于钻探泥浆20流变性、泥浆流率、井眼直径和管34的直径。
应当注意，本发明的切割去除管34沿其长度形成粘性联接层44，因此钻屑22连续循环到流动通道24内进行运输，在某些现有技术钻屑去除***中，认为钻屑可能在靠近工具接头处陷入流动通道24内。但是，然后钻屑通常在工具接头之间落回到孔的下侧。这样，继续在工具接头之间的井眼内构建钻屑床26。
在本发明的其它实施例中，工具接头镦粗部38可相对于常规钻杆减小。在其它实施例中，可更改工具接头36的轮廓，诸如通过向下朝向接头36的表面40渐缩。减小的工具接头镦粗部38或渐缩轮廓还便于使粘性联接层44延伸超过工具接头36的外径。
从本发明各具体实施例的前述详细说明应当理解，已经揭示了有新颖性的用于去除高角度井内钻屑的***和方法。尽管本文中详细地揭示了本发明的各具体实施例，这仅用于描述本发明的各特征和各方面的目的，且并不意指限制本发明的范围。可设想到可对所揭示的实施例进行各种替代、改变和/或更改，包括但不限于本文所提出的这些实施变型，而不偏离以下所附权利要求书所限定的本发明的精神和范围。
Claims (8)
1.一种管子，当所述管子旋转以去除高角度井眼中的钻屑时形成螺旋围绕所述管子的钻探泥浆的粘性联接层，所述管子包括：
细长管，所述细长管具有在相对工具接头之间延伸的外表面，所述工具接头的外径比所述外表面的外径大；以及
微粒，所述微粒基本上设置在所述整个外表面上，以形成选定的粗糙度，来形成螺旋粘性联接层，所述螺旋粘性联接层从所述外表面延伸超过所述工具接头的外径。
2.如权利要求1所述的管子，其特征在于，所述选定的粗糙度是针对选定的管转速和井眼直径进行的。
3.如权利要求1所述的管子，其特征在于，所述选定的粗糙度是针对选定的管直径和井眼直径进行的。
4.如权利要求1所述的管子，其特征在于，所述选定的粗糙度是针对选定的管直径、井眼直径和管转速进行的。
5.如权利要求1所述的管子，其特征在于，所述选定的粗糙度是针对选定的管直径、井眼直径、泥浆流变性和管转速进行的。
6.一种从高角度井眼去除钻屑的方法，所述方法包括：
在管接头的具有微粒的外表面上形成选定的粗糙度，所述外表面在相对工具接头之间延伸，各所述工具接头的外径比所述外表面的外径大；
将所述管接头连接在管柱的一部分上；
将所述管柱的所述部分放置在高角度井眼内；以及
使泥浆通过井眼循环，其中，所述选定的粗糙度形成泥浆的粘性联接层，所述粘性联接层从所述外表面延伸超过所述工具接头的外径。
7.如权利要求6所述的方法，其特征在于，所述井眼可偏离竖直方向三十度或更大。
8.如权利要求6所述的方法，其特征在于，所述井眼可偏离竖直方向六十五度或更大。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/415,643 US7703549B2 (en) | 2005-05-02 | 2006-05-02 | Method and apparatus for removing cuttings in high-angle wells |
| US11/415,643 | 2006-05-02 | ||
| PCT/US2006/042117 WO2007130125A1 (en) | 2006-05-02 | 2006-10-30 | Method and apparatus for removing cuttings in high-angle wells |
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| Publication Number | Publication Date |
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| CN101617016A CN101617016A (zh) | 2009-12-30 |
| CN101617016B true CN101617016B (zh) | 2012-11-21 |
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Country Status (4)
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| US (1) | US7703549B2 (zh) |
| EP (1) | EP2024459B1 (zh) |
| CN (1) | CN101617016B (zh) |
| WO (1) | WO2007130125A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9291018B2 (en) | 2011-12-20 | 2016-03-22 | Exxonmobil Upstream Research Company | Systems and methods to inhibit packoff events during downhole assembly motion within a wellbore |
| US20160201417A1 (en) * | 2015-01-09 | 2016-07-14 | Trican Well Service Ltd. | Fluid displacement stimulation of deviated wellbores using a temporary conduit |
| NO20220596A1 (en) * | 2019-11-11 | 2022-05-20 | Baker Hughes Oilfield Operations Llc | Holistic approach to hole cleaning for use in subsurface formation exploration |
| US11319777B2 (en) | 2020-04-02 | 2022-05-03 | Saudi Arabian Oil Company | Extended surface system with helical reamers |
| US11306555B2 (en) | 2020-04-02 | 2022-04-19 | Saudi Arabian Oil Company | Drill pipe with dissolvable layer |
| US11131144B1 (en) | 2020-04-02 | 2021-09-28 | Saudi Arabian Oil Company | Rotary dynamic system for downhole assemblies |
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2006
- 2006-05-02 US US11/415,643 patent/US7703549B2/en active Active
- 2006-10-30 CN CN2006800548838A patent/CN101617016B/zh not_active Expired - Fee Related
- 2006-10-30 WO PCT/US2006/042117 patent/WO2007130125A1/en active Application Filing
- 2006-10-30 EP EP06826944.8A patent/EP2024459B1/en not_active Not-in-force
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| US4811800A (en) * | 1987-10-22 | 1989-03-14 | Homco International Inc. | Flexible drill string member especially for use in directional drilling |
| US5984001A (en) * | 1997-09-25 | 1999-11-16 | Brown Fintube Company | Tapered split ring shell closure |
| US6840337B2 (en) * | 2002-08-28 | 2005-01-11 | Halliburton Energy Services, Inc. | Method and apparatus for removing cuttings |
| CN2682189Y (zh) * | 2004-02-19 | 2005-03-02 | 中国石油集团东方地球物理勘探有限责任公司 | 全螺旋钻杆 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060243491A1 (en) | 2006-11-02 |
| EP2024459B1 (en) | 2017-08-23 |
| EP2024459A1 (en) | 2009-02-18 |
| EP2024459A4 (en) | 2016-03-09 |
| US7703549B2 (en) | 2010-04-27 |
| WO2007130125A1 (en) | 2007-11-15 |
| CN101617016A (zh) | 2009-12-30 |
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