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1. 发明申请

WO1994009242A1 METHOD AND APPARATUS FOR ROTATING DOWNHOLE TOOL IN WELLBORE 审中-公开
标题翻译：在井筒中旋转井下工具的方法和装置
公开(公告)号：WO1994009242A1
公开(公告)日：1994-04-28
申请号：PCT/US1993007983
申请日：1993-08-24
申请人： MARATHON OIL COMPANY
发明人： MARATHON OIL COMPANY , SNIDER, Philip, M. , DIETRICH, Michael, J.
IPC分类号： E21B03/00
CPC分类号： E21B23/00 , E21B17/021 , E21B31/00
摘要： A wellbore operation in which a downhole tool is given rotary motion without rotating the tubing string to which it is attached. A "Yankee screwdriver" type of connector is used to connect a downhole tool to a tubing string so that compressive forces acting on the connector as a result of relative linear movement between the connector and the tool cause the tool to rotate. A number of various types of downhole operations are possible, such as rotating a tool away from an obstruction and retrieving the upper section of a lost tubing string.
摘要翻译：井眼操作，其中井下工具被旋转运动，而不旋转其所连接的油管柱。使用“扬克式螺丝刀”型连接器将井下工具连接到油管柱，使得由于连接器和工具之间的相对线性运动而作用在连接器上的压缩力导致工具旋转。许多各种类型的井下操作是可能的，例如使工具远离障碍物旋转并且检索丢失的油管柱的上部。

2. 发明申请

WO1990008243A1 MANHOLE CUTTER 审中-公开
标题翻译：曼彻切刀
公开(公告)号：WO1990008243A1
公开(公告)日：1990-07-26
申请号：PCT/US1990000153
申请日：1990-01-11
申请人： PAULSON, Roger, W.
IPC分类号： E21B03/00
CPC分类号： E02D29/14 , E02D29/1445 , E21B7/003 , E21B10/02 , E21B25/14
摘要： Manhole cutter (10) for cutting a circular groove of a finite depth about a manhole, such as in a street, and removing the manhole from the street. The manhole cutter is suspended from a front-end loader or truck-mounted boom and rotated hydraulically from a power take-off unit on the vehicle. A cutter ring assembly (12) with staggered cutters (30a - 30n), and inside and outside clean-out slots (42a-42n, 40a-40n) rotate about a central shaft (20) of the cutter. A manhole plate (14) centers the manhole cutter within the manhole for the cutting operations. When the cut is of sufficient depth to extricate the manhole, a keyway disk (16) is rotated to allow a plurality of lever grip assemblies (38a-38n) to grip the manhole. The manhole cutter and the manhole are then extricated, leaving a larger sized hole about the area of the manhole and minimum in size with respect to the manhole.
摘要翻译：人孔切割器，用于切割围绕人孔的固定深度的圆形凹槽，例如在街道上，并且从街上拆除检修孔。井眼切割器从前端装载机或卡车安装的悬臂悬挂，并从车辆上的动力输出单元液压地旋转。具有交错切割器的切割器环组件，以及内部和外部清洁槽围绕切割器的中心轴旋转。人孔板将人孔切割器从切割操作中心集中在人孔内。当切割具有足够的深度以便拆除人孔时，键槽盘被旋转以允许多个杆把手组件夹紧人孔。然后，人孔切割器和人孔从街道上离开，在孔眼区域留下一个较大的孔，孔的面积相对于人孔的尺寸最小。多个交错的切割器沿着切割器环组件的底部对准以切割沥青和污垢，并且通过螺栓和矩形杆安装在切割器环组件中。

3. 发明申请

WO1986002403A1 METHOD AND APPARATUS FOR COMBINED JET AND MECHANICAL DRILLING 审中-公开
标题翻译：用于组合喷射和机械钻孔的方法和装置
公开(公告)号：WO1986002403A1
公开(公告)日：1986-04-24
申请号：PCT/US1985001975
申请日：1985-10-09
申请人： FLOW INDUSTRIES, INC.
发明人： FLOW INDUSTRIES, INC. , REICHMAN, James, M.
IPC分类号： E21B03/00
CPC分类号： E21B10/43 , E21B7/18 , E21B10/60 , E21B21/12
摘要： A method and apparatus for drilling combines the advantages of a high pressure fluid jet with a mechanical drill bit (32) without the high horsepower requirements and associated equipment wear of prior jet drilling systems. A two fluid system is contemplated in which only a small portion of the drilling and stream is clarified and pumped under high pressure to a number of jet nozzles (82) located on the drill bit face (76). The high pressure fluid and concentrated drilling mud are conducted separately down the hole by a dual, concentric drill pipe (14). The power and equipment requirements of such a two fluid system are practical and economic because of the low flow rate and non-abrasiveness of the high pressure fluid when compared to conventional drilling fluids. The high pressure fluid combines with the concentrated drilling mud at the drill bit in order to accomplish the normal purposes of the drilling mud. The returned fluid is processed at the surface separated out solids, mud, and the mud to be clarified. This forms a closed system cycle. The fluid jets are strategically arranged with respect to the cutting teeth (78) on the drill bit in order to minimize bit wear and to increase the drilling rate by up to five times. Two systems are disclosed. The first is a jet assisted mechanical system in which the jets are directed at the earthen formation at the cutting surface/rock interface. The second is a mechanically assisted jet system in which the jets are located between the cutting teeth.

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