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公开(公告)号：US07040423B2
公开(公告)日：2006-05-09
申请号：US10788258
申请日：2004-02-26
IPC分类号： E21B10/18
CPC分类号： E21B10/18 , E21B10/60 , E21B41/0078
摘要： The present invention relates to a roller cone drill bit that has improved flow characteristics. The roller cone drill bit includes forming at least one relief region inside a bit body of the roller cone drill bit on a ledge formed between a fluid plenum and at least one of the fluid orifices. A method of locating the at least one relief region is also disclosed.
摘要翻译： 本发明涉及一种具有改善的流动特性的滚子锥钻头。 辊锥钻头包括在形成在流体室和至少一个流体孔之间的凸缘上形成辊锥钻头的钻头体内的至少一个浮雕区域。 还公开了一种定位至少一个释放区域的方法。
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公开(公告)号：US07188682B2
公开(公告)日：2007-03-13
申请号：US10610017
申请日：2003-06-30
摘要： A multi-stage diffuser nozzle for use as a drill bit nozzle jet includes a flow restriction portion upstream of a fluidic distributor portion, and also preferably includes a transition region between these two. The flow restrictor communicates with the interior fluid plenum of a drill bit and is used to limit or restrict the total flow of drilling fluid by having a relatively small cross-sectional area for fluid flow. The fluidic distributor communicates with the flow restrictor and reduces the exit flow velocities of the drilling fluid as the drilling fluid is ejected from the nozzle by providing a relatively larger cross-sectional area for fluid flow. The fluidic distributor also directs the flow paths of the drilling fluid to locations such as cone surfaces that are prone to bit balling. The transition region is an area that dampens fluid pressure oscillations in the drilling fluid.
摘要翻译： 用作钻头喷嘴喷嘴的多级扩散喷嘴包括流体分配器部分上游的流动限制部分，并且还优选地包括这两者之间的过渡区域。 限流器与钻头的内部流体通风室连通，并且用于通过具有用于流体流动的相对小的横截面来限制或限制钻井液的总流量。 流体分配器与限流器连通，并且当钻井流体通过为流体流动提供相对较大的横截面积而从喷嘴喷射时，减小钻井液的出口流速。 流体分配器还将钻井流体的流动路径引导到诸如倾斜咬合的锥形表面的位置。 过渡区域是抑制钻井液中流体压力振荡的区域。
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公开(公告)号：US06763902B2
公开(公告)日：2004-07-20
申请号：US09814916
申请日：2001-03-22
IPC分类号： E21B1018
摘要： A rolling cone rock bit having one or more nozzle retention bodies attached by a single orientation mounting is disclosed, as is the associated method for its manufacture. The upper end of the nozzle retention body has a fluid inlet in communication with the internal fluid plenum of the drill bit, and the lower end of the nozzle retention body includes a fluid outlet that defines an exit flow angle. The fluid outlet is located between two rolling cones, but is positioned closer to one of the cones than the other. Further, the exit flow angle is preferably within 3 degrees of parallel to the drill bit longitudinal axis and, even more preferably, is parallel with the drill bit longitudinal axis.
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公开(公告)号：US07213661B2
公开(公告)日：2007-05-08
申请号：US10728650
申请日：2003-12-05
CPC分类号： E21B10/18
摘要： A rotary cone rock bit includes one or more hole cleaning nozzles and one or more bit cleaning nozzles. The hole cleaning nozzles of one drill bit define a projected fluid path disposed at a lateral angle of less than six degrees in order to achieve a large impingement pressure on the hole bottom. The bit cleaning nozzles of the same drill bit define a projected fluid path disposed at a lateral angle of at least six degrees in order to pass within 0.5 inches of the teeth on leading edge of the lagging roller cone. This results in a drill bit that both cleans the bottom hole and cleans cone inserts.
摘要翻译： 旋转锥形钻头包括一个或多个孔清洁喷嘴和一个或多个钻头清洁喷嘴。 一个钻头的孔清洁喷嘴限定以小于六度的横向角度设置的投影流体路径，以便在孔底部上实现大的冲击压力。 相同钻头的钻头清洁喷嘴限定了以至少六度的横向角度设置的投影流体路径，以便在滞后辊锥体的前缘上的齿的0.5英寸内通过。 这产生了一个钻头，既净化了底孔，又清洗了锥形刀片。
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公开(公告)号：US07703354B2
公开(公告)日：2010-04-27
申请号：US10864943
申请日：2004-06-10
IPC分类号： B21K5/04
摘要： A method for forming a nozzle retention body suitable for engagement to a drill bit includes manufacturing an unfinished nozzle retention body which includes an upper end and a lower end. The upper end forms an inlet that transitions into a flowbore. The lower end has a nozzle receptacle passage machined therein toward the flowbore at an angle with respect to the lower end of the flowbore.
摘要翻译： 用于形成适于与钻头接合的喷嘴保持体的方法包括制造包括上端和下端的未完成的喷嘴保持体。 上端形成转变成流孔的入口。 下端具有在其中朝向钻孔相对于流动孔的下端成角度地加工的喷嘴容纳通道。
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公开(公告)号：US07252164B2
公开(公告)日：2007-08-07
申请号：US10816542
申请日：2004-04-01
摘要： A drill bit configures hydraulic streams from the bit nozzles for the particular cutting structure to be cleaned based on the cutting structure location and geometry. The projected impingement location for each hydraulic stream projected fluid path is customized for a corresponding roller cone, with each nozzle or nozzle receptacle being individually positioned according to improve cone cleaning. At least two nozzles or nozzle receptacles should differ on the drill bit.
摘要翻译： 基于切割结构位置和几何形状，钻头针对待清洁的特定切割结构从钻头喷嘴构造液压流。 每个液压流投影流体路径的预计冲击位置是针对相应的滚子锥定制的，每个喷嘴或喷嘴容器根据改进的锥体清洁单独定位。 钻头上至少有两个喷嘴或喷嘴容器应有所不同。
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公开(公告)号：US5669459A
公开(公告)日：1997-09-23
申请号：US547123
申请日：1995-10-23
摘要： A nozzle retention receptacle for rotary cone rock bits consists of a nozzle retention receptacle body forming a fluid passage therethrough. The body forms a first upstream entrance end that forms part of a wall of a plenum formed within a rock bit body and a second downstream exit end. The upstream end further forms a mounting interface that circumvents a fluid entrance port to the passage in the nozzle retention receptacle. The port communicates with the fluid plenum in the bit body. The body of the rock bit further forms a nozzle retention receptacle mounting interface that is common to the mounting interface formed by the nozzle retention receptacle.
摘要翻译： 用于旋转锥形岩石钻头的喷嘴保持容器由形成通过其的流体通道的喷嘴保持插座主体组成。 主体形成第一上游入口端，其形成在钻石钻头体和第二下游出口端内形成的增压室的壁的一部分。 上游端还形成安装界面，其将流体入口端口绕过喷嘴保持容器中的通道。 该端口与钻头体中的流体通风室相通。 岩石的身体还形成了由喷嘴保持容器形成的安装界面通用的喷嘴保持插座安装界面。
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公开(公告)号：US5538093A
公开(公告)日：1996-07-23
申请号：US359319
申请日：1994-12-05
CPC分类号： E21B10/61 , B05B15/065
摘要： A nozzle sleeve for the retention of replaceable fluid nozzles for rock bits is disclosed. The sleeve is secured within the body of the rock bit. A first upstream end of the sleeve communicates with a fluid plenum formed by the bit body. A second downstream end of this sleeve is adapted to receive the fluid nozzles. An elliptical fluid entrance is formed at the first upstream end of the nozzle sleeve. The elliptical fluid inlet formed by the sleeve serves to increase the flow of fluid to the nozzles, reduce turbulence of the fluid and substantially reduce the erosive effects associated with high fluid velocities and turbulent flow.
摘要翻译： 公开了一种用于保持用于岩石钻头的可替换流体喷嘴的喷嘴套筒。 套筒固定在岩石钻头的主体内。 套筒的第一上游端与由钻头体形成的流体增压室连通。 该套筒的第二下游端适于容纳流体喷嘴。 在喷嘴套筒的第一上游端形成有椭圆形流体入口。 由套筒形成的椭圆形流体入口用于增加流体到喷嘴的流动，减少流体的湍流，并显着降低与高流体速度和湍流相关的侵蚀作用。
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公开(公告)号：US08091654B2
公开(公告)日：2012-01-10
申请号：US12104856
申请日：2008-04-17
CPC分类号： E21B10/18
摘要： A drill bit for drilling through an earthen formation to form a borehole includes a bit body having a central axis, an internal plenum, and an underside. The underside includes an annular outer region. The bit body includes an outer receptacle extending from the plenum to the outer region. In addition, the drill bit comprises a first and a second cone cutter. Each cone cutter comprises an outer region distal the bit axis. Further the drill bit comprises an outer sleeve having an upstream end received by the outer sleeve receptacle and a through passage. The through passage includes an upstream section having an upstream axis and a downstream section having a downstream axis that is skewed at an angle α relative to the upstream axis. A projection of the downstream axis passes between the outer regions of the first and second cone cutters.
摘要翻译： 用于钻穿土层以形成钻孔的钻头包括具有中心轴线，内部增压室和下侧的钻头体。 下侧包括环形外部区域。 钻头体包括从集气室延伸到外部区域的外部容器。 此外，钻头包括第一和第二锥形切割器。 每个锥形切割器包括远离钻头轴线的外部区域。 此外，钻头包括外套筒，其具有由外套筒容座和通孔通过的上游端。 贯通通道包括具有上游轴线的上游部分和具有相对于上游轴线以一定角度α倾斜的下游轴线的下游部分。 下游轴的突出部通过第一和第二锥形切割器的外部区域之间。
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公开(公告)号：US07201241B2
公开(公告)日：2007-04-10
申请号：US11312075
申请日：2005-12-19
申请人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
发明人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
IPC分类号： E21B10/22
CPC分类号： E21B10/25 , Y10S277/926 , Y10S277/928
摘要： Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit. Surface features, on the seal or the drill bit, can be provided to offset the relief port opening from the rock bit so that it is not blocked off. The seal can include a valve mechanism to provide a further degree of control over fluid passage through the relief port.
摘要翻译： 本发明的自卸式密封件包括具有第一密封表面和用于与相应的钻头密封表面接触的第二密封表面的弹性体密封体。 密封件包括一对外表面，每个外表面沿密封体在第一和第二密封表面之间延伸。 密封件包括一个或多个卸载口，其设置成穿过密封体并具有通过每个密封体外表面的开口。 泄压口可以被特别地构造，例如具有恒定或可变尺寸的不同直径部分，以在密封件被装载在钻头内时通过密封体提供对压力平衡的程度的控制。 密封件可以包括设置在泄放口内的元件，例如固体，管状或多孔的，以便当密封件装载在钻头内时，通过密封件提供对压力平衡的进一步期望程度的控制。 可以提供在密封件或钻头上的表面特征以将卸载口开口偏离岩石钻头，使得其不被堵塞。 密封件可以包括阀机构，以进一步控制通过排放口的流体通道。
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