公开(公告)号：WO1996041064A1

公开(公告)日：1996-12-19

申请号：PCT/US1996008645

申请日：1996-06-03

Applicant: DAILEY PETROLEUM SERVICES CORP.

Inventor： DAILEY PETROLEUM SERVICES CORP. ,  EVANS, Robert, W.

IPC: E21B31/113

CPC classification number: E21B31/107 ,  E21B31/113

Abstract: A mechanical-hydraulic double-acting drilling jar includes an inner tubular mandrel (12) telescopingly supported inside an outer tubular housing (14). The mandrel and the housing each consist of a plurality of tubular segments joined together, preferably by threaded inner connections. Upper (134) and lower (166) pressure pistons are slidably disposed within the housing, respectively closing upper and lower substantially sealed hydraulic chambers (132, 164). Longitudinal movement of the mandrel engages the collet (184), which in turn, translates either the upper piston (134) or the lower piston (166), depending on the direction of mandrel movement. As one of the pistons is moved, fluid pressure builds in the associated hydraulic chamber, retarding further movement of the mandrel, enabling potential energy to build in the drill string. The collet is restricted from expanding until the mandrel reaches a particular point in the housing, at which time the collet expands, releasing the mandrel to rapidly collide a hammer surface (32, 21) thereon with an anvil surface (44, 41) in the housing.

Abstract translation: 机械液压双作用钻孔罐包括可伸缩地支撑在外部管状壳体（14）内部的内部管状心轴（12）。 心轴和壳体各自由多个连接在一起的管状段组成，优选地通过螺纹内部连接。 上部（134）和下部（166）的压力活塞可滑动地设置在壳体内，分别闭合上部和下部基本上密封的液压室（132,164）。 心轴的纵向运动接合夹头（184），夹头（184）又根据心轴运动的方向转动上活塞（134）或下活塞（166）。 当活塞中的一个被移动时，流体压力建立在相关联的液压室中，从而阻止心轴的进一步移动，从而使能量能够在钻柱中建立。 夹头被限制扩张直到心轴到达壳体中的特定点，此时夹头膨胀，释放心轴使其上的锤表面（32,21）迅速地与其中的砧座表面（44,41）碰撞。 住房。

公开(公告)号：WO1997024508A1

公开(公告)日：1997-07-10

申请号：PCT/US1996019757

申请日：1996-12-12

Applicant: DAILEY PETROLEUM SERVICES CORP.

Inventor： DAILEY PETROLEUM SERVICES CORP. ,  DANNY, S., Sebastian ,  THOMAS, R., Beasley

IPC: E21B23/04

CPC classification number: E21B23/04 ,  E21B7/067

Abstract: A drill string orienting tool (10) for insertion into a well bore (12) includes a housing (22) that has a plurality of inwardly projecting splines. A mandrel (32) is disposed within the housing (22). The orienting tool (10) has two operating positions, a running position, and an orienting position. The housing (22) is longitudinally moveable relative to the mandrel (32) between the running position and the orienting position. The mandrel (32) and the housing (22) define an annular chamber (38) that is vented to the exterior of the housing. A flexible metallic coiled tube (36) is disposed within the annular chamber (38) and contains hydraulic fluid. The upper end of the coiled tube (36) is coupled to the housing (22) and is in fluid communication with the first fluid chamber (104). The lower end of the coiled tube is coupled to the mandrel (32). The mandrel (32) has outwardly projecting splines (128) that are engageable with a corresponding set of inwardly projecting splines on the housing (22) when the orienting tool is in the running position. A piston (90) is movably disposed within the housing (22). The piston (90) and the housing (22) define a first fluid chamber (104), and a second fluid chamber (109). The second fluid chamber is vented (110) to the exterior of the housing (22). Downward movement of the piston causes a positive pressure differential between the pressure inside the coiled tube (36) and the pressure outside the coiled tube (38), thereby causing the coiled tube to uncoil and rotate the mandrel (32) relative to the housing (22).

Abstract translation: 用于插入井眼（12）的钻柱定向工具（10）包括具有多个向内突出的花键的壳体（22）。 心轴（32）设置在壳体（22）内。 定向工具（10）具有两个操作位置，运行位置和定向位置。 壳体（22）可相对于心轴（32）在运动位置和定位位置之间纵向移动。 心轴（32）和壳体（22）限定了通向外壳外部的环形室（38）。 柔性金属线圈管（36）设置在环形室（38）内并且包含液压流体。 螺旋管（36）的上端联接到壳体（22）并且与第一流体室（104）流体连通。 螺旋管的下端连接到心轴（32）上。 当定向工具处于运行位置时，心轴（32）具有向外突出的花键（128），其可与壳体（22）上的相应的一组向内突出的花键接合。 活塞（90）可移动地设置在壳体（22）内。 活塞（90）和壳体（22）限定第一流体室（104）和第二流体室（109）。 将第二流体室排出（110）到壳体（22）的外部。 活塞的向下运动导致螺旋管（36）内部的压力和卷绕管（38）外的压力之间的正压差，从而使盘管相对于壳体（...）开卷并旋转心轴（32） 22）。

公开(公告)号：WO1998016720A1

公开(公告)日：1998-04-23

申请号：PCT/US1997018304

申请日：1997-10-09

Applicant: DAILEY PETROLEUM SERVICES CORP.

Inventor： DAILEY PETROLEUM SERVICES CORP. ,  BEASLEY, Thomas, R.

IPC: E21B44/00

CPC classification number: E21B44/005 ,  E21B4/18 ,  E21B23/04 ,  E21B47/091

Abstract: The present invention is an improved apparatus for controlling the weight on the drill bit during operation. In this invention, an inner mandrel (1) has a telescoping movement in response to added drill string length at the surface. As the inner mandrel telescopes closed, it approaches a restrictor (5) which is fixedly disposed in the lower housing (4) of the drill string assembly. When the inner mandrel mates with the restrictor, a stand-pipe pressure increase occurs noticeable to the operator. The operator then stops the drill string and allows the motor to drill ahead. As the motor drills ahead, the inner mandrel telescopes open and the operation is then repeated.

Abstract translation: 本发明是用于在操作期间控制钻头的重量的改进的装置。 在本发明中，内心轴（1）响应于在表面处的钻柱长度增加而具有伸缩运动。 当内心轴望远镜闭合时，它接近固定地设置在钻柱组件的下壳体（4）中的限流器（5）。 当内心轴与限流器配合时，操作人员可以看到立管压力增加。 然后操作员停止钻柱，并允许电机向前钻。 当电机向前钻时，内心轴望远镜打开，然后重复操作。