公开(公告)号：US20160201397A1

公开(公告)日：2016-07-14

申请号：US14912826

申请日：2014-09-19

申请人： Halliburton Energy Services, Inc.

发明人： B. Raghava REDDY ,  Feng LIANG ,  Ping C. SUI ,  David P. DUCKWORTH

IPC分类号： E21B10/25 ,  F16J15/3284

CPC分类号： E21B10/25 ,  E21B2010/225 ,  F16J15/102 ,  F16J15/3284

摘要： The present disclosure relates to elastomer-thermally conductive carbon fiber compositions for use in seals for roller-cone drill bits. The present disclosure further relates to seals formed from such compositions and to roller-cone drill bits containing such seals.

摘要翻译： 本公开涉及用于辊锥钻头的密封件中的弹性体导热碳纤维组合物。 本公开还涉及由这种组合物形成的密封件和包含这种密封件的辊锥钻头。

公开(公告)号：US09988850B2

公开(公告)日：2018-06-05

申请号：US14654788

申请日：2012-12-31

申请人： Halliburton Energy Services, Inc.

发明人： Micheal B. Crawford ,  Mark E. Williams ,  Young H. Lee ,  David P. Duckworth ,  Zhaohui Shan

IPC分类号： E21B10/25 ,  E21B10/22

CPC分类号： E21B10/25 ,  E21B2010/225

摘要： A downhole seal system for roller cone drill bits includes a seal gland having a width larger than it depth. In one implementation, the seal gland includes a protrusion along its base on which a seal element seats. The seal element is a single, annular seal element with a recess formed therein so as to define two lobes. The seal element seats in the gland so that the recess engages the protrusion. The lobes function as separate seal elements, although they are a single unitary seal element disposed in a single gland.

公开(公告)号：US20160040482A1

公开(公告)日：2016-02-11

申请号：US14778630

申请日：2014-03-07

申请人： SANDVIK INTELLECTUAL PROPERTY AB

发明人： Joona LOIKKANEN ,  Stig-Ake BROLUND

IPC分类号： E21B10/25

CPC分类号： E21B10/25 ,  E21B10/10 ,  E21B2010/225

摘要： A roller cutter intended to be used at a drill head for rotary boring of the front of earth and rock formations, the roller cutter having a centre line and being provided with a hub having rows of crushing members. At least one crushing member has its longitudinal axis at an angle relative to a normal to the centre line. The hub is rotatable in relation to a shaft having shaft spigots. The roller cutter is provided with at least one seal retainer arranged at an axial end of the hub in order to hold a sealing means in position. The hub includes at least one circumferential recess positioned axially inward relative to a radially inward projecting flange in the hub.

摘要翻译： 用于在钻头上使用的用于旋转钻孔的滚子式切割机，该切割机具有中心线，并且设置有具有一排破碎构件的轮毂。 至少一个破碎构件的纵向轴线相对于中心线的法线成一角度。 轮毂可相对于具有轴轴的轴可旋转。 滚轮切割器设置有至少一个密封保持器，其布置在毂的轴向端部处，以便将密封装置保持在适当位置。 轮毂包括相对于轮毂中的径向向内突出的凸缘轴向向内定位的至少一个圆周凹槽。

公开(公告)号：US20140326514A1

公开(公告)日：2014-11-06

申请号：US13886911

申请日：2013-05-03

申请人： Chih Lin ,  Aaron J. Dick ,  Jon D. Schroder ,  Anton F. Zahradnik ,  Alejandro Flores ,  Robert D. Bradshaw

发明人： Chih Lin ,  Aaron J. Dick ,  Jon D. Schroder ,  Anton F. Zahradnik ,  Alejandro Flores ,  Robert D. Bradshaw

IPC分类号： E21B10/62

CPC分类号： E21B10/25 ,  E21B10/22 ,  E21B2010/225 ,  Y10T29/49826

摘要： In one aspect, a drill bit is disclosed that in one embodiment may include a bit body, a rotating cutter on the bit body, and a metallic seal between the bit body and the rotating cutter that includes a first seal member, a second seal member having a first end in sealing contact with the first seal member, a second end fixed relative to the first end and a bias member between the first end and the second end that adjusts the load on the first seal member in response to external load applied on the drill bit.

摘要翻译： 在一个方面，公开了一种钻头，其在一个实施例中可以包括钻头体，钻头体上的旋转切割器以及钻头体和旋转切割器之间的金属密封件，其包括第一密封构件，第二密封构件 具有与所述第一密封构件密封接触的第一端，相对于所述第一端固定的第二端和在所述第一端和所述第二端之间的偏置构件，其响应于施加在所述第一密封构件上的外部负载来调节所述第一密封构件上的载荷 钻头。

公开(公告)号：US20130319770A1

公开(公告)日：2013-12-05

申请号：US13985654

申请日：2012-02-07

申请人： Bruce H. Burr

发明人： Bruce H. Burr

IPC分类号： E21B10/25

CPC分类号： E21B10/25 ,  E21B2010/225 ,  F16J15/162 ,  F16J15/164

摘要： A seal for a rolling cutter drill bit is provided. The seal has a ring shaped seal body having an inside diameter and an outside diameter, and a mud lobe and a grease lobe extending from the inside diameter of the seal body. The seal body has an asymmetrical, longitudinal cross-section such that, when positioned in a seal groove of the drill bit and compressed therein under downhole pressure, the mud lobe and grease lobe are maintained in contact with a seal land of the seal groove. The seal body may be provided with a garter spring and/or a textured pattern.

摘要翻译： 提供了一种用于轧制刀具钻头的密封件。 密封件具有内径和外径的环形密封体，以及从密封体的内径延伸的泥浆凸起和润滑脂凸角。 密封体具有不对称的纵向横截面，使得当位于钻头的密封槽中并在井下压力下被压缩时，泥浆凸起和润滑脂凸块保持与密封槽的密封接合面接触。 密封体可以设置有张紧弹簧和/或纹理图案。

公开(公告)号：US09316055B2

公开(公告)日：2016-04-19

申请号：US13886911

申请日：2013-05-03

申请人： Chih Lin ,  Aaron J. Dick ,  Jon D. Schroder ,  Anton F. Zahradnik ,  Alejandro Flores ,  Robert D. Bradshaw

发明人： Chih Lin ,  Aaron J. Dick ,  Jon D. Schroder ,  Anton F. Zahradnik ,  Alejandro Flores ,  Robert D. Bradshaw

IPC分类号： E21B10/25 ,  E21B10/22

CPC分类号： E21B10/25 ,  E21B10/22 ,  E21B2010/225 ,  Y10T29/49826

摘要： In one aspect, a drill bit is disclosed that in one embodiment may include a bit body, a rotating cutter on the bit body, and a metallic seal between the bit body and the rotating cutter that includes a first seal member, a second seal member having a first end in sealing contact with the first seal member, a second end fixed relative to the first end and a bias member between the first end and the second end that adjusts the load on the first seal member in response to external load applied on the drill bit.

摘要翻译： 在一个方面，公开了一种钻头，其在一个实施例中可以包括钻头体，钻头体上的旋转切割器以及钻头体和旋转切割器之间的金属密封件，其包括第一密封构件，第二密封构件 具有与所述第一密封构件密封接触的第一端，相对于所述第一端固定的第二端和在所述第一端和所述第二端之间的偏置构件，其响应于施加在所述第一密封构件上的外部负载来调节所述第一密封构件上的载荷 钻头。

公开(公告)号：US09249629B2

公开(公告)日：2016-02-02

申请号：US14808817

申请日：2015-07-24

申请人： Baker Hughes Incorporated

发明人： Chih Lin ,  Terry J. Koltermann ,  Anton F. Zahradnik ,  Gregory L. Ricks

IPC分类号： E21B10/25 ,  E21B10/22

CPC分类号： E21B10/25 ,  E21B2010/225 ,  F16J15/328 ,  F16J15/3284 ,  F16J15/344

摘要： A backup ring for a face seal in a roller cone bit is configured to resist wear from drilling fluids present adjacent exposed faces of the backup ring. Portions are removed from an exposed end face in a variety of shapes while the hardness of the material is increased. The removal of material offsets an increase in force that would be transmitted through the backup ring on face seal assembly due to flexing. A spring can optionally be included in the removed material location. Another way is to increase the edge density of all or part of the exposed edges while leaving the interior portions unaffected by using electron beam radiation to increase the crosslink density or by other techniques that allow a unitary structure with a more durable edge region.

摘要翻译： 用于辊锥形钻头中的面密封件的支撑环被配置为抵抗与备用环的暴露面相邻的钻井液的磨损。 部件从各种形状的露出端面移除，同时材料的硬度增加。 材料的去除抵消了由于弯曲而将通过表面密封组件上的支撑环传递的力的增加。 可以可选地在去除的材料位置中包括弹簧。 另一种方法是增加所有或部分暴露边缘的边缘密度，同时通过使用电子束辐射不影响内部部分以增加交联密度，或通过允许具有更持久的边缘区域的整体结构的其它技术来增加边缘密度。

公开(公告)号：US08967301B2

公开(公告)日：2015-03-03

申请号：US12699175

申请日：2010-02-03

申请人： David A. Curry ,  Terry J. Koltermann ,  Chih C. Lin ,  Stuart Hall

发明人： David A. Curry ,  Terry J. Koltermann ,  Chih C. Lin ,  Stuart Hall

IPC分类号： E21B10/25

CPC分类号： E21B10/25 ,  E21B2010/225

摘要： An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

摘要翻译： 地镗头具有一个具有固定轴承销的一个主体，可旋转地安装在轴承销上的锥体，锥体和轴承销之间的密封压盖以及位于密封压盖中的密封组件。 密封组件包括环绕轴承销的环形金属弹簧。 弹簧具有围绕轴承销一圈的几何中心线。 弹簧相对于中心线在径向上弹性变形。 弹性体层位于弹簧的外侧，并被弹簧偏压在密封压盖的表面上。

公开(公告)号：US20140224548A1

公开(公告)日：2014-08-14

申请号：US13766118

申请日：2013-02-13

申请人： VAREL INTERNATIONAL, IND., L.P.

发明人： Alan Otto LEBECK

IPC分类号： E21B10/25

CPC分类号： E21B10/25 ,  E21B2010/225

摘要： A sealing system includes a first gland in a cone and a second gland in a shaft region. A first ring is mounted in the first gland, a second ring is mounted in the second gland and a third ring is positioned between the first and second rings. The first and third rings present a pair of opposed metal seal faces. A biasing spring is configured to exert an axial force against the third ring so as to keep the metal seal faces in sealing contact. A third gland is formed between the second and third rings, with an o-ring sealing member installed within the third gland and compressed in a sealing relationship between the second and third rings. The third ring includes a sealing region supporting the metal seal face and a body region supporting the third gland, with the sealing region pivotally coupled to the body region.

摘要翻译： 密封系统包括锥体中的第一压盖和轴区域中的第二压盖。 第一环安装在第一压盖中，第二环安装在第二压盖中，第三环位于第一和第二环之间。 第一和第三环呈现一对相对的金属密封面。 偏置弹簧构造成对第三环施加轴向力，以使金属密封面保持密封接触。 在第二和第三环之间形成第三压盖，其中O形环密封构件安装在第三压盖内并以第二和第三环之间的密封关系压缩。 第三环包括支撑金属密封面的密封区域和支撑第三密封套的主体区域，密封区域枢转地联接到身体区域。

公开(公告)号：US20110187058A1

公开(公告)日：2011-08-04

申请号：US12699175

申请日：2010-02-03

申请人： David A. Curry ,  Terry J. Koltermann ,  Chih C. Lin ,  Stuart Hall

发明人： David A. Curry ,  Terry J. Koltermann ,  Chih C. Lin ,  Stuart Hall

IPC分类号： E21B10/25

CPC分类号： E21B10/25 ,  E21B2010/225

摘要： An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

摘要翻译： 地镗头具有一个具有固定轴承销的一个主体，可旋转地安装在轴承销上的锥体，锥体和轴承销之间的密封压盖以及位于密封压盖中的密封组件。 密封组件包括环绕轴承销的环形金属弹簧。 弹簧具有围绕轴承销一圈的几何中心线。 弹簧相对于中心线在径向上弹性变形。 弹性体层位于弹簧的外侧，并被弹簧偏压在密封压盖的表面上。