公开(公告)号：US4941538A

公开(公告)日：1990-07-17

申请号：US409706

申请日：1989-09-20

申请人： William W. King

发明人： William W. King

IPC分类号： E21B10/42 ,  E21B10/43 ,  E21B10/46 ,  E21B17/10

CPC分类号： E21B10/43 ,  E21B10/46 ,  E21B17/1092

摘要： A one-piece drill bit is shown for use in drilling a borehole in an earthen formation. The bit includes a body having a face on one end and a shank on the opposite end. The face has a noise and a gage region. The gage region is bisected between an upper and lower stabilizing regions of full gage diameter cutter elements. An intermediate undercut region minimizes contact with the borehole wall while maintaining an effective gage length for the bit.

摘要翻译： 显示了一个单件钻头，用于在土层钻孔中钻孔。 该钻头包括一端具有一个面的主体和一相对端上的柄。 脸上有一个噪音和一个量规区域。 量具区域在全量具直径切割器元件的上部和下部稳定区域之间被平分。 中间底切区域最小化与钻孔壁的接触，同时保持钻头的有效量具长度。

公开(公告)号：US4714120A

公开(公告)日：1987-12-22

申请号：US042546

申请日：1987-04-23

申请人： William W. King

发明人： William W. King

IPC分类号： E21B10/42 ,  E21B10/43 ,  E21B10/56 ,  E21B10/573 ,  E21B10/60 ,  E21B10/46

CPC分类号： E21B10/43 ,  E21B10/573 ,  E21B10/602

摘要： An earth boring bit is shown having a body with one end which is connected to a drill string member for rotation and having an opposite end with a matrix formed thereon. A plurality of cutting elements are mounted on the matrix for dislodging geological formations. The cutting elements include groups of at least two but less than four cutters which are co-joined by a common backing of the matrix, the co-joined groups being spaced-apart from adjacent co-joined groups mounted on the matrix.

摘要翻译： 地球钻头被示出具有主体，其一端连接到用于旋转的钻柱构件，并且具有形成在其上的矩阵的相对端。 多个切割元件安装在基体上以移走地质构造。 切割元件包括由基体的共同背衬共同连接的至少两个但少于四个切割器的组，所述共连接组与安装在基体上的相邻共连接组间隔开。

公开(公告)号：US4696354A

公开(公告)日：1987-09-29

申请号：US880214

申请日：1986-06-30

申请人： William W. King ,  Edmund C. Houle, Jr.

发明人： William W. King ,  Edmund C. Houle, Jr.

IPC分类号： E21B10/56 ,  E21B10/567 ,  E21B10/60

CPC分类号： E21B10/567 ,  E21B10/602

摘要： A bit is shown for use in drilling earthen formations which includes a body having a bit face on one end and a shank on the opposite end which is connected in the drill string. The bit body has a tubular bore which communicates with an interior bore of the drill string for circulation of fluids. The bit face increases in external diameter between a nose and a gage region of the bit. A fluid opening communicates the bit face with the tubular bore for circulating fluid to the bit face. A plurality of fluid courses are disposed on the bit body, the fluid courses becoming ever wider and ever deeper along their entire disposition from their lowermost incorporation through the gage region thereof.

摘要翻译： 示出了用于钻井土层的一点，其包括在一端具有钻头面的主体和在钻柱中连接的相对端上的柄。 钻头体具有与钻柱的内孔连通以便流体循环的管状孔。 钻头的头部和刀头区域之间的外径增加。 流体开口将钻头面与管状孔连通，以将流体循环到钻头面。 多个流体流道设置在钻头体上，流体流道沿着它们的最下部​​并入通过其表面区域沿其整个布置变得越来越深。

公开(公告)号：US4667756A

公开(公告)日：1987-05-26

申请号：US867343

申请日：1986-05-23

申请人： William W. King ,  Arthur M. Handsel ,  David M. Nguyen

发明人： William W. King ,  Arthur M. Handsel ,  David M. Nguyen

IPC分类号： E21B10/54 ,  E21B10/55 ,  E21B10/60 ,  E21B10/36

CPC分类号： E21B10/55 ,  B22D19/02 ,  B22D19/06 ,  B22D19/14 ,  E21B10/54 ,  E21B10/602 ,  C22C1/1036 ,  C22C29/08

摘要： A matrix bit is shown of the type having a metallic mandrel with a connecting end for connection in a well pipe string leading to the well surface. An opposite end is covered with a cast matrix material which defines a central bit body. A plurality of integral blades are formed of the cast matrix material and extend axially and radially from the central bit body. Each of the blades is reinforced by a metallic extension which is contained within the matrix material and extends coaxially with each blade.

摘要翻译： 示出了具有金属心轴的类型的矩阵位，具有用于在通向井表面的井管柱中连接的连接端。 另一端覆盖有限定中心钻头体的铸造基体材料。 多个整体叶片由铸造基体材料形成并且从中心钻头体轴向和径向延伸。 每个叶片由金属延伸部分加强，该延伸部分包含在基体材料内并与每个叶片同轴延伸。