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1. 发明授权

US08316968B2 Rolling cone drill bit having sharp cutting elements in a zone of interest 有权
标题翻译：滚动钻头在感兴趣的区域中具有锋利的切割元件
公开(公告)号：US08316968B2
公开(公告)日：2012-11-27
申请号：US12771346
申请日：2010-04-30
申请人： Giampaolo Ferrari , Gary Portwood , Carl A. Deen
发明人： Giampaolo Ferrari , Gary Portwood , Carl A. Deen
IPC分类号： E21B10/16
CPC分类号： E21B10/52
摘要： A rolling cone drill bit comprises a bit body and a plurality of rolling cone cutters mounted on the bit body. Each cone cutter includes a plurality of gage cutting elements. Each gage cutting element has a cutting portion extending from a base portion to an extension height. Further, each gage cutting element contacts a gage curve at a gage curve contact point in a composite rotated profile view. Each gage cutting element has a cross-sectional area A1 in a first offset reference plane parallel to a base reference plane and offset from the base reference plane by an offset distance d1 equal to 10% of the extension height. The ratio of A1 to a cross-sectional area Ab of the base portion of each gage cutting element is less than 11%.
摘要翻译：滚动钻头包括钻头体和安装在钻头体上的多个滚动锥形铣刀。每个锥形切割器包括多个量具切割元件。每个量具切割元件具有从基部延伸到延伸高度的切割部分。此外，每个量规切割元件在复合旋转轮廓视图中的量规曲线接触点处接触量规曲线。每个量具切割元件在平行于基准参考平面的第一偏移参考平面中具有横截面积A1，并且偏离基准基准平面等于延伸高度的10％的偏移距离d1。每个量具切割元件的基部的A1与横截面积Ab之比小于11％。

2. 发明申请

US20100276207A1 ROLLING CONE DRILL BIT HAVING SHARP CUTTING ELEMENTS IN A ZONE OF INTEREST 有权
标题翻译：滚动锥形钻头在一个有利地区的夏普切割元素
公开(公告)号：US20100276207A1
公开(公告)日：2010-11-04
申请号：US12771346
申请日：2010-04-30
申请人： Giampaolo Ferrari , Gary Portwood , Carl A. Deen
发明人： Giampaolo Ferrari , Gary Portwood , Carl A. Deen
IPC分类号： E21B10/08
CPC分类号： E21B10/52
摘要： A rolling cone drill bit comprises a bit body and a plurality of rolling cone cutters mounted on the bit body. Each cone cutter includes a plurality of gage cutting elements. Each gage cutting element has a cutting portion extending from a base portion to an extension height. Further, each gage cutting element contacts a gage curve at a gage curve contact point in a composite rotated profile view. Each gage cutting element has a cross-sectional area A1 in a first offset reference plane parallel to a base reference plane and offset from the base reference plane by an offset distance d1 equal to 10% of the extension height. The ratio of A1 to a cross-sectional area Ab of the base portion of each gage cutting element is less than 11%.
摘要翻译：滚动钻头包括钻头体和安装在钻头体上的多个滚动锥形铣刀。每个锥形切割器包括多个量具切割元件。每个量具切割元件具有从基部延伸到延伸高度的切割部分。此外，每个量规切割元件在复合旋转轮廓视图中的量规曲线接触点处接触量规曲线。每个量具切割元件在平行于基准参考平面的第一偏移参考平面中具有横截面积A1，并且偏离基准基准平面等于延伸高度的10％的偏移距离d1。每个量具切割元件的基部的A1与横截面积Ab之比小于11％。

3. 发明申请

US20090188724A1 Rolling Cone Drill Bit Having High Density Cutting Elements 有权
标题翻译：具有高密度切割元件的滚动钻头
公开(公告)号：US20090188724A1
公开(公告)日：2009-07-30
申请号：US12351188
申请日：2009-01-09
申请人： Gary Portwood , Luca Tedeschi , Giampaolo Ferrari , Josh Gatell , John Clunan , Allen D. White
发明人： Gary Portwood , Luca Tedeschi , Giampaolo Ferrari , Josh Gatell , John Clunan , Allen D. White
IPC分类号： E21B10/16 , E21B10/08 , E21B10/52
CPC分类号： E21B10/16
摘要： A rolling cone drill bit for drilling in earthen formations. In an embodiment, the drill bit comprises a plurality of rolling cone cutters. Each cone cutter includes a plurality of gage cutting elements, a first plurality of bottomhole cutting elements, and a second plurality of bottomhole cutter elements. Each of the first plurality of bottomhole cutting elements is staggered relative to the gage cutting elements on each cone cutter, and the profiles of the gage cutting elements and the first plurality of bottomhole cutting elements on each cone cutter overlap in rotated profile view. Each of the second plurality of bottomhole cutting elements is staggered relative to the first plurality of bottomhole cutting elements on at least one cone cutter, and the profiles of the first plurality of bottomhole cutting elements and the second plurality of bottomhole cutting elements on at least one cone cutter overlap in rotated profile view.
摘要翻译：一种用于在土层中钻孔的滚动钻头。在一个实施例中，钻头包括多个滚动锥形切割器。每个锥形切割器包括多个量具切割元件，第一多个井底切割元件和第二多个井底切割元件。第一多个井底切割元件中的每一个相对于每个锥形切割器上的计量切割元件交错，并且每个锥形切割器上的量规切割元件的轮廓和第一多个井底切割元件在旋转轮廓视图中重叠。第二多个井底切割元件中的每一个相对于至少一个锥形切割器上的第一多个井底切割元件交错，并且第一多个井底切割元件和第二多个井底切割元件的轮廓在至少一个锥形切割器在旋转轮廓视图中重叠。

4. 发明授权

US09074431B2 Rolling cone drill bit having high density cutting elements 有权
标题翻译：滚子钻头具有高密度切割元件
公开(公告)号：US09074431B2
公开(公告)日：2015-07-07
申请号：US12351188
申请日：2009-01-09
申请人： Gary Portwood , Luca Tedeschi , Giampaolo Ferrari , Josh Gatell , John Clunan , Allen D. White
发明人： Gary Portwood , Luca Tedeschi , Giampaolo Ferrari , Josh Gatell , John Clunan , Allen D. White
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： A rolling cone drill bit for drilling in earthen formations having a plurality of rolling cone cutters. Each cone cutter includes a plurality of gage cutting elements, a first plurality of bottomhole cutting elements, and a second plurality of bottomhole cutter elements. Each of the first plurality of bottomhole cutting elements is staggered relative to the gage cutting elements on each cone cutter. Each of the second plurality of bottomhole cutting elements is staggered relative to the first plurality of bottomhole cutting elements on at least one cone cutter.
摘要翻译：一种用于在具有多个滚动锥形切割机的土地层中钻孔的滚动钻头钻头。每个锥形切割器包括多个量具切割元件，第一多个井底切割元件和第二多个井底切割元件。第一多个井底切割元件中的每一个相对于每个锥形切割器上的计量切割元件交错。第二多个井底切割元件中的每一个相对于至少一个锥形切割器上的第一多个井底切割元件交错。

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