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公开(公告)号：US20110220423A1
公开(公告)日：2011-09-15
申请号：US13044083
申请日：2011-03-09
申请人： Hongping Tian , Zengyuan Shao , Xiaobing Fan
发明人： Hongping Tian , Zengyuan Shao , Xiaobing Fan
IPC分类号： E21B10/00
摘要： This invention relates to a tri-cone bit for high RPM drilling applications, which comprises three head sections and three cones. Cutting elements are arranged on each cone. Upper parts of the three head sections are joined together to form a bit body, on which nozzle sockets are provided, and nozzles are installed in bores of the nozzle sockets. A bearing between the cones and the head sections is a composite roller-journal bearing which is formed by rollers and arc-shaped slides arranged in an alternating way, and a seal means for the bearing is of metal face type. The composite roller-journal bearing of the invention can withstand high RPM and high load, and also has a higher resistance to impact, thereby ensuring longer working life of the bearing under high RPM and medium-high WOB. The six-point gage protection structure enhances stability of the bit and reduces cutting element breakage caused by bit vibration. The above tri-cone bit is suitable for high RPM and medium-high WOB drilling applications and features high drilling efficiency and long service life.
摘要翻译： 本发明涉及一种用于高RPM钻孔应用的三锥钻头，其包括三个头部和三个锥体。 切割元件布置在每个锥体上。 三个头部的上部连接在一起形成一个位体，在其上设有喷嘴插座，喷嘴安装在喷嘴插孔的孔中。 锥体和头部之间的轴承是由以交替方式布置的辊和弧形滑块形成的复合辊轴颈轴承，并且用于轴承的密封装置是金属面型。 本发明的复合滚子轴颈轴承可以承受高转速和高负载，并且还具有较高的抗冲击能力，从而确保轴承在高转速和中高温度下的长寿命。 六点量规保护结构提高了钻头的稳定性，减少了钻头振动引起的切削元件断裂。 上述三锥钻头适用于高RPM和中高WOB钻孔应用，钻孔效率高，使用寿命长。
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公开(公告)号：US09410378B2
公开(公告)日：2016-08-09
申请号：US14149188
申请日：2014-01-07
发明人： Zengyuan Shao , Bin Pu , Xiaobing Fan
CPC分类号： E21B10/16 , E21B10/08 , E21B10/18 , E21B17/1092
摘要： A tricone rock bit for horizontal wells and hard formation wells includes three head sections and three cones arranged at the lower ends of the head sections, where the supper parts of the three head sections are connected together to form one integrated drill bit body; jet nozzle bosses are arranged between the head sections on the drill bit body; jet nozzles are mounted in nozzle holes of the jet nozzle bosses; gauge cutting elements are arranged on the top rear of the OD of the head sections, forming a gauge surface on the top of the head sections; the front face of the head sections is a ruled surface, inclining backwards at an angle α, and inclining outwards at an angle β. The tricone rock bit has low lateral vibrations, high stability, good effects of bottom hole cleaning and cutting element cooling, long service life and high penetration rate.
摘要翻译： 用于水平井和硬地层井的三角岩钻头包括三个头部和三个锥体，三个头部布置在头部的下端，三个头部的后部部分连接在一起，形成一个集成的钻头体; 喷嘴凸台布置在钻头体的头部之间; 喷嘴安装在喷嘴凸台的喷嘴孔中; 表头切割元件布置在头部部分的OD的顶部后部，在头部部分的顶部形成计量表面; 头部的前表面是刻度表面，以角度α向后倾斜，并以角度β向外倾斜。 三角岩钻头横向振动小，稳定性好，底孔清洗效果好，切削元件冷却效果好，使用寿命长，穿透率高。
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公开(公告)号：US09238944B2
公开(公告)日：2016-01-19
申请号：US13044083
申请日：2011-03-09
申请人： Hongping Tian , Zengyuan Shao , Xiaobing Fan
发明人： Hongping Tian , Zengyuan Shao , Xiaobing Fan
摘要： This invention relates to a tri-cone bit for high RPM drilling applications, which comprises three head sections and three cones. Cutting elements are arranged on each cone. Upper parts of the three head sections are joined together to form a bit body, on which nozzle sockets are provided, and nozzles are installed in bores of the nozzle sockets. A bearing between the cones and the head sections is a composite roller-journal bearing which is formed by rollers and arc-shaped slides arranged in an alternating way, and a seal means for the bearing is of metal face type. The composite roller-journal bearing of the invention can withstand high RPM and high load, and also has a higher resistance to impact, thereby ensuring longer working life of the bearing under high RPM and medium-high WOB. The six-point gage protection structure enhances stability of the bit and reduces cutting element breakage caused by bit vibration. The above tri-cone bit is suitable for high RPM and medium-high WOB drilling applications and features high drilling efficiency and long service life.
摘要翻译： 本发明涉及一种用于高RPM钻孔应用的三锥钻头，其包括三个头部和三个锥体。 切割元件布置在每个锥体上。 三个头部的上部连接在一起形成一个位体，在其上设有喷嘴插座，喷嘴安装在喷嘴插孔的孔中。 锥体和头部之间的轴承是由以交替方式布置的辊和弧形滑块形成的复合辊轴颈轴承，并且用于轴承的密封装置是金属面型。 本发明的复合滚子轴颈轴承可以承受高转速和高负载，并且还具有较高的抗冲击能力，从而确保轴承在高转速和中高温度下的长寿命。 六点量规保护结构提高了钻头的稳定性，减少了钻头振动引起的切削元件断裂。 上述三锥钻头适用于高RPM和中高WOB钻孔应用，钻孔效率高，使用寿命长。
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公开(公告)号：US08360175B2
公开(公告)日：2013-01-29
申请号：US12789132
申请日：2010-05-27
申请人： Xiaobing Fan , Peng Wu , Dongfang Chen , Chengfu Guo
发明人： Xiaobing Fan , Peng Wu , Dongfang Chen , Chengfu Guo
IPC分类号： E21B10/16
摘要： This invention relates to carbide inserts used on roller cone bits for oil and gas drilling applications as well as for other geological drilling applications, and more specifically, relates to the convex crested insert with deflected wedge surfaces. The insert comprises a cylindrical portion and a crest portion. Said crest portion is composed of a conical crest base, a top surface and two opposing wedge surfaces. Upper ends of the two wedge surfaces are merged smoothly with top surface of the insert. The specific feature of the structure is that top surface of the crest portion is convexed outwardly and forms a smooth curve surface which is higher in the middle and lowers down gradually to each end. Said two wedge surfaces are slant wedge surfaces, so that a width of the top surface and therefore a width of the insert crest are tapered from one end to the other. Advantages of this invention include: 1. Help for rock breaking and therefore, it can increase drilling efficiency of the cutters and lower the overall drilling cost; 2. higher anti-breakage capability and longer working life; and 3. when inserts of this invention are used as heel row cutting elements on bit, contact area between wider end of the top surface of the insert and borehole wall is larger and therefore the gouging action applied on the borehole wall is higher and can also achieve better gage protection of the bit.
摘要翻译： 本发明涉及在用于油气钻井应用的辊锥钻头上以及其他地质钻井应用中使用的碳化物刀片，更具体地说，涉及具有偏转的楔形表面的凸形凸起刀片。 插入件包括圆柱形部分和波峰部分。 所述顶部由锥形顶部基座，顶部表面和两个相对的楔形表面组成。 两个楔形表面的上端与插入件的顶面平滑地合并。 该结构的具体特点是，顶部的顶面向外凸出，形成平滑的曲面，中间较高，逐渐向下延伸。 所述两个楔形表面是倾斜的楔形表面，使得顶部表面的宽度以及因此的插入物峰的宽度从一端逐渐变细。 本发明的优点包括：1.帮助破岩，从而提高切割机的钻井效率，降低整体钻井成本; 更高的抗断裂能力和更长的使用寿命; 当本发明的插入件用作钻头上的脚跟切割元件时，插入件顶表面的较宽端部与钻孔壁之间的接触面积较大，因此施加在钻孔壁上的气刨动作较高，并且还可以 实现更好的量规保护。
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公开(公告)号：US20140116787A1
公开(公告)日：2014-05-01
申请号：US14149188
申请日：2014-01-07
发明人： Zengyuan Shao , Bin Pu , Xiaobing Fan
CPC分类号： E21B10/16 , E21B10/08 , E21B10/18 , E21B17/1092
摘要： A tricone rock bit for horizontal wells and hard formation wells includes three head sections and three cones arranged at the lower ends of the head sections, where the supper parts of the three head sections are connected together to form one integrated drill bit body; jet nozzle bosses are arranged between the head sections on the drill bit body; jet nozzles are mounted in nozzle holes of the jet nozzle bosses; gauge cutting elements are arranged on the top rear of the OD of the head sections, forming a gauge surface on the top of the head sections; the front face of the head sections is a ruled surface, inclining backwards at an angle α, and inclining outwards at an angle β. The tricone rock bit has low lateral vibrations, high stability, good effects of bottom hole cleaning and cutting element cooling, long service life and high penetration rate.
摘要翻译： 用于水平井和硬地层井的三角岩钻头包括三个头部和三个锥体，三个头部布置在头部的下端，三个头部的后部部分连接在一起，形成一个集成的钻头体; 喷嘴凸台布置在钻头体的头部之间; 喷嘴安装在喷嘴凸台的喷嘴孔中; 表头切割元件布置在头部部分的OD的顶部后部，在头部部分的顶部形成计量表面; 头部的前表面是刻划表面，以角度α向后倾斜，并以角度＆bgr向外倾斜。 三角岩钻头横向振动小，稳定性好，底孔清洗效果好，切削元件冷却效果好，使用寿命长，穿透率高。
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公开(公告)号：US20100300766A1
公开(公告)日：2010-12-02
申请号：US12789132
申请日：2010-05-27
申请人： Xiaobing Fan , Peng Wu , Dongfang Chen , Chengfu Guo
发明人： Xiaobing Fan , Peng Wu , Dongfang Chen , Chengfu Guo
摘要： This invention relates to carbide inserts used on roller cone bits for oil and gas drilling applications as well as for other geological drilling applications, and more specifically, relates to the convex crested insert with deflected wedge surfaces. The insert comprises a cylindrical portion and a crest portion. Said crest portion is composed of a conical crest base, a top surface and two opposing wedge surfaces. Upper ends of the two wedge surfaces are merged smoothly with top surface of the insert. The specific feature of the structure is that top surface of the crest portion is convexed outwardly and forms a smooth curve surface which is higher in the middle and lowers down gradually to each end. Said two wedge surfaces are slant wedge surfaces, so that a width of the top surface and therefore a width of the insert crest are tapered from one end to the other. Advantages of this invention include: 1. Help for rock breaking and therefore, it can increase drilling efficiency of the cutters and lower the overall drilling cost; 2. higher anti-breakage capability and longer working life; and 3. when inserts of this invention are used as heel row cutting elements on bit, contact area between wider end of the top surface of the insert and borehole wall is larger and therefore the gouging action applied on the borehole wall is higher and can also achieve better gage protection of the bit.
摘要翻译： 本发明涉及在用于油气钻井应用的辊锥钻头上以及其他地质钻井应用中使用的碳化物刀片，更具体地说，涉及具有偏转的楔形表面的凸形凸起刀片。 插入件包括圆柱形部分和波峰部分。 所述顶部由锥形顶部基座，顶部表面和两个相对的楔形表面组成。 两个楔形表面的上端与插入件的顶面平滑地合并。 该结构的具体特点是，顶部的顶面向外凸出，形成平滑的曲面，中间较高，逐渐向下延伸。 所述两个楔形表面是倾斜的楔形表面，使得顶部表面的宽度以及因此的插入物峰的宽度从一端逐渐变细。 本发明的优点包括：1.帮助破岩，从而提高切割机的钻井效率，降低整体钻井成本; 更高的抗断裂能力和更长的使用寿命; 当本发明的插入件用作钻头上的脚跟切割元件时，插入件顶表面的较宽端部与钻孔壁之间的接触面积较大，因此施加在钻孔壁上的气刨动作较高，并且还可以 实现更好的量规保护。
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7.发明申请公开(公告)号：US20100032215A1
公开(公告)日：2010-02-11
申请号：US12462211
申请日：2009-07-29
申请人： Zengyuan Shao , Bin Pu , Xiaobing Fan
发明人： Zengyuan Shao , Bin Pu , Xiaobing Fan
IPC分类号： E21B10/14
CPC分类号： E21B10/16 , E21B17/1092
摘要： The present invention discloses a tri-cone drill bit comprising: three head sections with upper parts thereof jointed together to form a bit body, three cones rotatably mounted to lower ends of the head sections respectively, nozzle sockets designed on the bit body between respective head sections and each having a hole in which a nozzle is mounted, wherein gage cutters are mounted to an upper trailing side of each head O.D. surface to form a gage holding surface thereon, and a leading side of each head section is backwardly slanted as a whole. The design of gage surface at trailing sides of head sections increases the bit's stability, reduces lateral vibration and also reduces tendency of bit deflection in horizontal drilling applications and effective working life of the bit is improved. Backward slant of leading sides of head sections facilitates upward carrying of drilling cuttings and improves drilling efficiency. Jets from the nozzles are respectively directed to the leading side of each following cone, which enhances bottom hole cleaning and cooling of cutting elements and leads to a longer working life and higher ROP of the bit.
摘要翻译： 本发明公开了一种三锥钻头，包括：三个头部，其上部部分连接在一起以形成钻头体，三个锥体分别可旋转地安装在头部部分的下端，喷嘴插座设计在钻头体之间各自的头部 并且每个具有安装有喷嘴的孔，其中量规切割器安装到每个头部OD的上部后侧 表面以在其上形成量具保持表面，并且每个头部的前侧作为整体向后倾斜。 在头部部分尾部设计计量表面增加了钻头的稳定性，减少了横向振动，并且还降低了水平钻井应用中钻头偏斜的趋势，同时提高了钻头的有效使用寿命。 头部前端的向后倾斜有助于向上承载钻削切屑并提高钻井效率。 来自喷嘴的喷嘴分别指向每个后续锥体的前端，这增强了切割元件的底孔清洁和冷却，并导致更长的工作寿命和更高的钻头的ROP。
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公开(公告)号：US07299887B2
公开(公告)日：2007-11-27
申请号：US10512399
申请日：2003-03-26
申请人： Xuezhong Liu , Yan Zhao
发明人： Xuezhong Liu , Yan Zhao
CPC分类号： E21B10/083
摘要： This invention relates to a single cone bit with offset axis and composite cones for oil and gas drilling, mining and other subterranean drilling operations. The bit consists of a head body and a cone. The cone section has a shape of composite cones. The outer circumference of the cone is composed of from back face of the cone to top of the cone an extended gage surface, an outer cone surface and a main cone surface. A plurality of cutting elements is mounted onto each cone surface. A head journal at lower end of the head body is for rotatablely connection with the cone. Between the axis of head journal and the axis of the bit, there is an offset value d along rotating direction of the cone. A gage pad is arranged on head body at a location opposite to the offset direction of the head journal. The gage pad is fitted with inserts or hardfaced with wear resistant alloy to prevent bit from whirling and prevent head body from being worn out and to ensure gage protection. Junk slots are machined along the side of head body and jet ports are arranged at lower bevel of the head body to guarantee cuttings removal and effective cleaning results. This invention improves the bit's ability to break rocks through impact for specific use in hard formations. The bit performance is obviously improved and overall drilling cost reduced.
摘要翻译： 本发明涉及一种具有偏心轴的单锥形钻头和用于油气钻井，采矿和其他地下钻井作业的复合锥体。 该钻头由头体和锥体组成。 锥形部分具有复合锥体的形状。 锥体的外圆周由圆锥体的后表面到锥体的顶部，延伸的计量表面，外圆锥表面和主锥体表面组成。 多个切割元件安装在每个锥体表面上。 头部主体下端的头颈部用于与锥体可旋转连接。 在磁头轴颈轴与钻头的轴线之间，沿锥体的旋转方向存在偏移值d。 在头部主体的与头颈部的偏移方向相反的位置处布置有量具垫。 量具垫配有插入件或耐磨合金表面，以防止钻头旋转，并防止头体磨损，并确保量具保护。 垃圾槽沿头部主体加工，喷嘴端口布置在头部主体的下斜面处，以确保切屑清除和有效的清洁效果。 本发明提高了钻头通过冲击破碎岩石的能力，用于硬地层中的特定用途。 钻头性能明显提高，整体钻井成本降低。
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公开(公告)号：US6119797A
公开(公告)日：2000-09-19
申请号：US173576
申请日：1998-10-15
申请人： Chunling Hong , Xuezhong Liu , Hongmei Huang , Heng Du
发明人： Chunling Hong , Xuezhong Liu , Hongmei Huang , Heng Du
CPC分类号： E21B17/1092 , E21B10/08
摘要： The invention discloses a single cone earth boring bit which is adapted to be used for boring in oil fields, mining and geological prospecting. The single cone earth boring bit is composed of a bit body (1), gauge blocks (2), active cutting gauge teeth (4), passive gauge teeth (3) and knobby cone (6) etc. On the knobby cone (6), there are inserted wear-resistant teeth intermittently or successively, so as to make the wear resistance of the bit cutting system to be matched with the service life of the bearing. At the same time, gauge blocks (2) are provided on the bit body which may be directly made on or welded to the bit body. On the gauge blocks (2), there are inserted common carbide or wear-resistant active cutting gauge teeth (4) and the passive gauge teeth (3) to enhance the gauge-protecting effect of the bit. Such a single cone earth boring bit can significantly increase the footage of the bit and reduce the cost for drilling.
摘要翻译： 本发明公开了一种适用于油田镗孔，采矿和地质勘查的单锥钻地钻。 单个锥形钻头由钻头体（1），量块（2），有效切割表齿（4），被动测量齿（3）和旋钮锥（6）等构成。在圆锥体（6） ），间歇或连续地插入耐磨齿，以使钻头切削系统的耐磨性与轴承的使用寿命相匹配。 同时，钻头体上设置有可以直接制成或焊接在钻头体上的钻头块（2）。 在仪表块（2）上，插入普通碳化物或耐磨有源切割表齿（4）和被动测齿（3），以增强钻头的防护等级。 这种单锥钻地钻可显着增加钻头的镜头，并降低钻孔成本。
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