公开(公告)号：US06290002B1

公开(公告)日：2001-09-18

申请号：US09245063

申请日：1999-02-05

Applicant: Laurier E. Comeau ,  Ian Gillis ,  James Fehr ,  Christopher W. Konschuh

Inventor： Laurier E. Comeau ,  Ian Gillis ,  James Fehr ,  Christopher W. Konschuh

IPC: E21B704

CPC classification number: E21B7/068 ,  E21B7/067 ,  E21B10/36 ,  E21B17/1014

Abstract: A drilling assembly and a method for directional drilling using the drilling assembly. The drilling assembly comprises a drilling bit, a near bit stabilizer and an adjustable gauge stabilizer. The near bit stabilizer is located a first axial distance from a distal end of the drilling assembly and has a near bit stabilizer gauge which is greater than a nominal drilling assembly gauge. The adjustable gauge stabilizer is located a second axial distance from the distal end, which is greater than the first axial distance, and is adjustable between an extended and retracted gauge. The retracted gauge is less than the near bit stabilizer gauge. A bit drop angle is created between the drilling assembly and the drilling bit, while a stabilizer angle is created between the near bit stabilizer and the adjustable gauge stabilizer. The combination of the bit drop angle and the stabilizer angle results in a net build angle of the drilling assembly, when the adjustable gauge stabilizer is adjusted to the retracted gauge, and a net drop angle when adjusted to the extended gauge.

Abstract translation: 钻井组件和使用钻井组件定向钻井的方法。 钻孔组件包括钻头，近钻头稳定器和可调量规稳定器。 近钻头稳定器位于距钻井组件的远端的第一轴向距离处，并且具有大于标称钻孔组件计的近位稳定器。 可调量规稳定器位于距离远端的第二轴向距离，其大于第一轴向距离，并且可在延伸和缩回量规之间调节。 回缩量规小于近位稳定器。 在钻头组件和钻头之间产生点落角，同时在近位稳定器和可调量规稳定器之间产生稳定角。 当将可调量规稳定器调节到缩回量规时，钻头组合的净建立角度与钻头下落角度和稳定器角度的组合导致，当调节到延伸量规时，净下落角度。

公开(公告)号：US06328119B1

公开(公告)日：2001-12-11

申请号：US09453820

申请日：1999-12-03

Applicant: Ian Gillis ,  Gary M. Crase ,  Laurier E. Comeau ,  Charles M. Reid ,  Paul Roberts ,  Christopher W. Konschuh ,  Richard Thomas Hay ,  Colin Walker

Inventor： Ian Gillis ,  Gary M. Crase ,  Laurier E. Comeau ,  Charles M. Reid ,  Paul Roberts ,  Christopher W. Konschuh ,  Richard Thomas Hay ,  Colin Walker

IPC: E21B706

CPC classification number: E21B23/006 ,  E21B7/062 ,  E21B7/068 ,  E21B17/1014 ,  E21B47/091

Abstract: A downhole drilling assembly including a housing having an upper end for connection to a drill string and a lower end, a fluid passage extending through the housing from the upper end to the lower end, a power unit contained within the housing, a drive assembly extending within the housing between the power unit and the lower end of the housing such that a mandrel chamber is defined between the drive assembly and the housing, a radially movable first stabilizer associated with the housing and located between the power unit and the lower end of the housing, an axially movable mandrel contained within the mandrel chamber, the mandrel being associated with a stabilizer actuator for causing radial movement of the first stabilizer in response to axial movement of the mandrel, and a sensor apparatus located between the power unit and the lower end of the housing for sensing at least one drilling parameter. The drilling assembly may also include a second stabilizer located between the power unit and the lower end of the housing and a bent housing assembly located between the power unit and the lower end of the housing.

Abstract translation: 一种井下钻井组件，包括具有用于连接到钻柱和下端的上端的壳体，从上端延伸到下端的流体通道，容纳在壳体内的动力单元， 在所述动力单元和所述壳体的下端之间的壳体内，使得在所述驱动组件和所述壳体之间限定心轴室，与所述壳体相关联并位于所述动力单元与所述壳体的下端之间的可径向移动的第一稳定器 壳体，容纳在心轴腔室内的可轴向移动的心轴，心轴与稳定器致动器相关联，稳定器致动器用于响应于心轴的轴向运动而引起第一稳定器的径向运动，以及位于功率单元和下端之间的传感器设备 的壳体用于感测至少一个钻孔参数。 钻孔组件还可以包括位于动力单元和壳体的下端之间的第二稳定器以及位于动力单元和壳体的下端之间的弯曲壳体组件。