公开(公告)号：US07350578B2

公开(公告)日：2008-04-01

申请号：US11263730

申请日：2005-11-01

申请人： David D. Szarka ,  William W. Gilbert ,  David Burkhead ,  Henry E. Rogers ,  Nicholas C. Braun ,  Todd D. Cooper ,  John Johnson

发明人： David D. Szarka ,  William W. Gilbert ,  David Burkhead ,  Henry E. Rogers ,  Nicholas C. Braun ,  Todd D. Cooper ,  John Johnson

IPC分类号： E21B33/12 ,  E21B43/26

CPC分类号： E21B33/134 ,  E21B23/10 ,  E21B43/26

摘要： Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a second end; a compressible body attached to and surrounding a longitudinal portion of the mandrel; and a sealing nose attached to the first end of the mandrel. In certain embodiments, systems for achieving zonal isolation of a casing string in a well bore may comprise a diverter plug comprising a mandrel having a first end and a second end, a compressible body attached to and surrounding a longitudinal portion of the mandrel, and a sealing nose attached to the first end of the mandrel; and a landing collar sized to mate with a portion of the sealing nose of the diverter plug. Associated methods are also provided.

摘要翻译： 进行井下作业，如刺激作业，井眼的区域隔离通常是需要的。 在某些实施例中，用于实现井筒中套管柱中的区域隔离的分流器塞可以包括具有第一端和第二端的心轴; 附接到并围绕心轴的纵向部分的可压缩主体; 以及连接到心轴的第一端的密封鼻。 在某些实施例中，用于实现套管柱在井眼中的区域分离的系统可以包括分流塞，其包括具有第一端和第二端的心轴，连接到并围绕心轴的纵向部分的可压缩体，以及 密封鼻连接到心轴的第一端; 以及尺寸适合与分流塞的密封鼻部的一部分配合的着陆衣领。 还提供了相关的方法。

公开(公告)号：US07694732B2

公开(公告)日：2010-04-13

申请号：US11004440

申请日：2004-12-03

申请人： Henry E. Rogers ,  Nicholas C. Braun ,  Steven L. Holden

发明人： Henry E. Rogers ,  Nicholas C. Braun ,  Steven L. Holden

IPC分类号： E21B33/13

CPC分类号： E21B21/10 ,  E21B21/103 ,  E21B34/063

摘要： The present invention relates to a diverter tool used in a pipe string to lower a liner into a partially cased wellbore. The diverter tool has a diverter body that defines a longitudinal central flow passage and has diverter ports defined therethrough to communicate and redirect fluids received in the liner to an annulus between the diverter tool in casing previously set in the wellbore. The diverter tool has first and second closure members. The first closure member is movable between open and closed positions on the diverter body. The second closure member is detachably connected in the diverter body in its open position and is movable to its closed position to prevent flow through the diverter ports.

摘要翻译： 本发明涉及一种用于管柱中以将衬管降低为部分套管井筒的分流器工具。 分流器工具具有限定纵向中心流动通道并具有限定在其中的分流器端口的分流器主体，以将容纳在衬套中的流体连通并重定向到预先设置在井筒中的壳体中的转向器工具之间的环形空间。 分流器工具具有第一和第二闭合构件。 第一关闭构件可在转向器主体上的打开位置和闭合位置之间移动。 第二闭合构件在分流器主体处于其打开位置可拆卸地连接并且可移动到其关闭位置以防止流过分流器端口。

公开(公告)号：US07322432B2

公开(公告)日：2008-01-29

申请号：US11004421

申请日：2004-12-03

申请人： Henry E. Rogers ,  Nicholas C. Braun ,  Steven L. Holden

发明人： Henry E. Rogers ,  Nicholas C. Braun ,  Steven L. Holden

IPC分类号： E21B21/00

CPC分类号： E21B7/20 ,  E21B21/103

摘要： The present invention relates to a diverter tool used in a pipe string used to lower a liner and a cutting apparatus on the end thereof into a partially cased wellbore. The diverter tool has a diverter body that defines a longitudinal flow passage and has the diverter ports defined therethrough to communicate a drilling fluid displaced through the pipe string into the liner into an annular space around the diverter tool. The diverter tool has a closure member so that when the wellbore is drilled to its desired depth, the diverter ports through which drilling fluid is diverted may be closed and the liner may be cemented in the wellbore.

摘要翻译： 本发明涉及一种在用于将衬套和其端部上的切割装置降低到部分套管的井眼中的管柱中使用的分流器工具。 分流器工具具有分流器主体，其限定纵向流动通道并且具有限定在其中的分流器端口，以将穿过管柱排出的钻井流体连通到围绕分流器工具的环形空间中。 分流器工具具有闭合构件，使得当将井筒钻到其期望的深度时，钻井液被引导通过的分流口可以被关闭，并且衬套可以粘结在井眼中。