公开(公告)号：WO2017174482A1

公开(公告)日：2017-10-12

申请号：PCT/EP2017/057809

申请日：2017-04-03

Applicant: HAWLE WATER TECHNOLOGY NORGE AS

Inventor： BORGEN, Harald ,  SOLBERG, Pål ,  KOPANOS, Stylianos

IPC: E21B7/06

CPC classification number: E21B7/067 ,  E21B7/068

Abstract: The invention relates to a steering joint (3) for a steerable drilling system, comprising an upper tubular (301) and a lower tubular (302) connected by a universal joint (303) which allows the upper tubular (301) to bend with respect to the lower tubular (302), wherein the universal joint (303) comprises a joint bearing socket (306) with a hollow core, comprising axially protruding cams (311) with identical extension on a substantially ring- shaped face end, a cylindrical and rotatable step piston (308) with a hollow core and radial grooves (312) on a substantially ring-shaped face end, wherein the cams (311) and the grooves (312) are arranged in such a way to provide a positive force-fitting connection of the bearing socket (306) with the step piston (308), and wherein the grooves (312) are of different depth and their bases define inclined planes with respect to the plane of the face end of the step piston (308), so that the upper tubular (301) and the lower tubular (302) can be tilted with respect to each other at predefined steering angles. The invention further relates to the use of such a steering joint in a drilling system, and a drilling system with such a steering joint.

Abstract translation: 本发明涉及一种用于可转向钻井系统的转向接头（3），其包括由万向接头（303）连接的上管（301）和下管（302），所述万向接头 其特征在于，所述万向节（303）包括具有中空芯的关节轴承座（306），所述关节轴承座（306）包括轴向突出的凸轮（311），所述轴向凸出的凸轮（311）在基本上环 （311）和槽（312）布置成这样的形状，其中，所述凸轮（311）和所述凹槽（312）布置成这样的形状， 以提供轴承座（306）与阶梯活塞（308）的正向力配合连接，并且其中沟槽（312）具有不同的深度，并且它们的底部限定相对于端面的平面的倾斜平面 （308）的上方，使得上部管（301）和下部管（30 2）可以以预定的转向角相对于彼此倾斜。 本发明还涉及这种转向接头在钻井系统中的用途以及具有这种转向接头的钻井系统。

公开(公告)号：WO2017174486A1

公开(公告)日：2017-10-12

申请号：PCT/EP2017/057817

申请日：2017-04-03

Applicant: HAWLE WATER TECHNOLOGY NORGE AS

Inventor： BORGEN, Harald ,  BAKKE, Vegard ,  PETERSEN, David Christian ,  KOPANOS, Stylianos ,  SJULSTAD, Trond

IPC: E21B1/00 ,  E21B23/04 ,  E21B23/00

Abstract: The invention relates to a counter hold system (4) for a drilling system, comprising an axially and/or radially flexible, preferably tubular, bellows (401) with two annular openings, and a cylinder body (403) which is axially movable in a cylinder housing (405) with two ends, wherein the bellows (401) is connected at one annular opening to the outer surface of the cylinder body (403) or to the outer surface at one end of the cylinder housing (405), and on its other annular opening to the opposite end of the cylinder housing (405), so that an annular hollow space is formed between the inner surface of the bellows (401) and the outer surface of the cylinder housing (405), and means are provided to lead a pressurized medium into the bellows (401), preferably in the form of an inlet (408) in the cylinder housing (405) leading into the hollow space. The invention further relates to the use of such a counter hold system in a drilling system, and a drilling system with such a counter hold system.

Abstract translation: 本发明涉及一种用于钻井系统的计数器保持系统（4），其包括轴向和/或径向柔性的，优选为管状的具有两个环形开口的波纹管（401），以及气缸体 其中波纹管（401）在一个环形开口处连接到缸体（403）的外表面或连接到在缸体（405）的一端处的外表面 （405）的另一个环形开口上，从而在波纹管（401）的内表面与气缸壳体（405）的外表面之间形成环形空腔 （405），并且提供用于将加压介质引导到波纹管（401）中的装置，优选地在进入中空空间的气缸壳体（405）中的入口（408）的形式。 本发明还涉及在钻井系统中使用这种反作用保持系统，以及具有这种反作用保持系统的钻井系统。