公开(公告)号：US07753116B2

公开(公告)日：2010-07-13

申请号：US12134945

申请日：2008-06-06

申请人： David Budney ,  Craig Budney ,  Glenn Budney

发明人： David Budney ,  Craig Budney ,  Glenn Budney

IPC分类号： E21B31/113

CPC分类号： E21B31/1135

摘要： A double-acting jar comprises an inner mandrel and an outer housing. The inner mandrel is disposed telescopically within the outer housing to define a fluid chamber in between. There is an uphole restriction and a downhole restriction spaced from one another within the fluid chamber. An uphole valve is disposed within the fluid chamber, the uphole valve having a first seating surface engageable with an uphole facing sealing shoulder in the fluid chamber. There is a downhole valve disposed within the fluid chamber, the downhole valve having a second seating surface engageable with a downhole facing sealing shoulder in the fluid chamber.

摘要翻译： 双作用罐包括内心轴和外壳。 内心轴可伸缩地设置在外壳内以在其间限定流体室。 在流体室内存在相互间隔开的井下限制和井下限制。 井眼阀设置在流体室内，井眼阀具有可与流体室中的面向密封肩部的井上接合的第一安置表面。 设置在流体室内的井下阀，井下阀具有可与流体室中面向密封肩部的井下接合的第二阀座表面。

公开(公告)号：US20090301707A1

公开(公告)日：2009-12-10

申请号：US12134945

申请日：2008-06-06

申请人： DAVID BUDNEY ,  CRAIG BUDNEY ,  GLENN BUDNEY

发明人： DAVID BUDNEY ,  CRAIG BUDNEY ,  GLENN BUDNEY

IPC分类号： E21B31/113

CPC分类号： E21B31/1135

摘要： A double-acting jar comprises an inner mandrel and an outer housing. The inner mandrel is disposed telescopically within the outer housing to define a fluid chamber in between. There is an uphole restriction and a downhole restriction spaced from one another within the fluid chamber. A uphole valve is disposed within the fluid chamber, the uphole valve having a first seating surface engageable with an uphole facing sealing shoulder in the fluid chamber. The uphole valve has a first exterior surface that fits with close tolerance within the uphole restriction over at least a portion of the first exterior surface. There is a downhole valve disposed within the fluid chamber, the downhole valve having a second seating surface engageable with a downhole facing sealing shoulder in the fluid chamber. The downhole valve has a second exterior surface that fits with close tolerance within the downhole restriction over at least a portion of the first exterior surface. There are first jarring surfaces on the inner mandrel and outer housing respectively for jarring contact with each other during an upjar, and second jarring surfaces on the inner mandrel and outer housing respectively for jarring contact with each other during downjar. The uphole restriction and downhole restriction are separated such that when the downhole restriction slides upward over the initial portion of the downhole valve to seat the downhole valve, at least a portion of the uphole restriction extends upwardly beyond the downhole end of the uphole valve sufficient to allow a downjar to be carried out. The uphole restriction and downhole restriction are also separated such that when the uphole restriction slides downward over the initial portion of the uphole valve to seat the uphole valve, at least a portion of the downhole restriction extends downwardly beyond the uphole end of the downhole valve sufficient to allow an upjar to be carried out.

摘要翻译： 双作用罐包括内心轴和外壳。 内心轴可伸缩地设置在外壳内以在其间限定流体室。 在流体室内存在相互间隔开的井下限制和井下限制。 井眼阀设置在流体室内，井眼阀具有可与流体室中的朝上的密封肩部接合的第一座面。 所述井眼阀具有第一外表面，所述第一外表面在所述第一外表面的至少一部分上在所述井下限制内配合。 设置在流体室内的井下阀，井下阀具有可与流体室中面向密封肩部的井下接合的第二阀座表面。 井下阀具有第二外表面，该第二外表面在第一外表面的至少一部分上在井下限制内紧密公差配合。 在内心轴和外壳上分别有第一震动表面，用于在上心和第二震动表面分别在内心轴和外壳上相互接触以在下心时彼此震动接触。 井下限制和井下限制被分开，使得当井下限制件向上滑动到井眼阀的初始部分上以安置井下阀时，至少一部分井上限制件向上延伸超过井下阀的井下端足以足以 允许进行下降。 井下限制和井下限制也被分离，使得当井上限制件向下滑动到上井阀的初始部分以安置上孔阀时，井下限制件的至少一部分向下延伸超过井下阀的井孔端部足够 以允许进行upjar。