公开(公告)号：US20080271889A1

公开(公告)日：2008-11-06

申请号：US12048958

申请日：2008-03-14

申请人： John Gordon Misselbrook ,  Russell Meyer ,  Darcy A. Schultz ,  Trevor Gordon Hayes ,  Quentin Shane Stang

发明人： John Gordon Misselbrook ,  Russell Meyer ,  Darcy A. Schultz ,  Trevor Gordon Hayes ,  Quentin Shane Stang

IPC分类号： E21B43/267

CPC分类号： E21B43/305 ,  E21B33/134 ,  E21B43/267

摘要： An improved method for building a plug in a horizontal wellbore using a fluid pill pumped into the wellbore at the end of a fracturing treatment. The fluid pill includes a high concentration of an ultra lightweight proppant, such as a neutrally buoyant proppant or an ultra lightweight proppant mixture. The fluid pill is pumped down the wellbore until it almost reaches fractures within a zone of interest. The pumping is then ceased or reduced, allowing the fractures to partially close. The ultra lightweight proppant remains suspended within the fluid pill while stationary. The pumping is then resumed at a very slow rate or as a short pump burst, thus causing the proppant in the fluid pill to bridge off until a bridge plug is formed.

摘要翻译： 一种改进的在压裂处理结束时使用在井眼中泵送的流体药液在水平井筒中建造塞子的方法。 流体丸包括高浓度的超轻质支撑剂，例如中性浮力支撑剂或超轻质支撑剂混合物。 将液体药液泵送到井筒下方，直到其几乎达到感兴趣区域内的裂缝。 然后泵送停止或减少，允许裂缝部分关闭。 超轻型支撑剂在静止时保持悬浮在流体药片内。 然后以非常慢的速率恢复泵送，或者作为短的泵脉冲恢复，从而使流体药丸中的支撑剂桥接，直到形成桥塞。

公开(公告)号：US07735556B2

公开(公告)日：2010-06-15

申请号：US12048958

申请日：2008-03-14

申请人： John Gordon Misselbrook ,  Russell Meyer ,  Darcy A. Schultz ,  Trevor Gordon Hayes ,  Quentin Shane Stang

发明人： John Gordon Misselbrook ,  Russell Meyer ,  Darcy A. Schultz ,  Trevor Gordon Hayes ,  Quentin Shane Stang

IPC分类号： E21B43/267 ,  E21B33/134

CPC分类号： E21B43/305 ,  E21B33/134 ,  E21B43/267

摘要： An improved method for building a plug in a horizontal wellbore using a fluid pill pumped into the wellbore at the end of a fracturing treatment. The fluid pill includes a high concentration of an ultra lightweight proppant, such as a neutrally buoyant proppant or an ultra lightweight proppant mixture. The fluid pill is pumped down the wellbore until it almost reaches fractures within a zone of interest. The pumping is then ceased or reduced, allowing the fractures to partially close. The ultra lightweight proppant remains suspended within the fluid pill while stationary. The pumping is then resumed at a very slow rate or as a short pump burst, thus causing the proppant in the fluid pill to bridge off until a bridge plug is formed.

摘要翻译： 一种改进的在压裂处理结束时使用在井眼中泵送的流体药液在水平井筒中建造塞子的方法。 流体丸包括高浓度的超轻质支撑剂，例如中性浮力支撑剂或超轻质支撑剂混合物。 将液体药液泵送到井筒下方，直到其几乎达到感兴趣区域内的裂缝。 然后泵送停止或减少，允许裂缝部分关闭。 超轻型支撑剂在静止时保持悬浮在流体药片内。 然后以非常慢的速率恢复泵送，或者作为短的泵脉冲恢复，从而使流体药丸中的支撑剂桥接，直到形成桥塞。