公开(公告)号：US20050121191A1

公开(公告)日：2005-06-09

申请号：US10730616

申请日：2003-12-08

申请人： Mitchell Lambert ,  Chad Northeast

发明人： Mitchell Lambert ,  Chad Northeast

IPC分类号： E21B37/00 ,  E21B43/34

CPC分类号： E21B37/00

摘要： A method of improving erosion performance (decreasing the erosion) of components—such as a throat, a nozzle, or a diffuser—for a downhole tool used for cleaning a wellbore is disclosed.

摘要翻译： 公开了一种改善用于清洁井眼的井下工具的部件（如喉部，喷嘴或扩散器）的侵蚀性能（减少侵蚀）的方法。

公开(公告)号：US20070151735A1

公开(公告)日：2007-07-05

申请号：US11642230

申请日：2006-12-20

申请人： John Ravensbergen ,  Mitch Lambert ,  Chad Northeast

发明人： John Ravensbergen ,  Mitch Lambert ,  Chad Northeast

IPC分类号： E21B43/26

CPC分类号： E21B17/203 ,  E21B17/206 ,  E21B33/127 ,  E21B43/26

摘要： An improved concentric coiled tubing annular fracturing string is disclosed having at least two fluid flow paths. An umbilical tube located inside of a coiled tubing string may provide one of the pathways, which may be used to isolate downhole elements, such as a packer, from harmful fluids. The annulus between the umbilical tube and the outer coiled tubing may provide the second flow pathway. The umbilical tube may contain an electric line, which may provide an electrical connection to a bottom hole assembly (“BHA”). The improved system may also provide for the measurement of down hole fracturing fluid pressure or be used to deliver a cross-linking agent to a specified portion of a well. The BHA may include an emergency packer deflation device to rapidly deflate a packer in the event the packer loses its ability to anchor against the casing.

摘要翻译： 公开了一种改进的同心卷绕管环形压裂串，其具有至少两个流体流动路径。 位于连续油管柱内部的脐带管可以提供一个路径，其可用于将井下元件（例如封隔器）与有害流体隔离。 脐带管和外部盘绕管之间的环形空间可以提供第二流动路径。 脐管可以包含电线，其可以提供与底部孔组件（“BHA”）的电连接。 改进的系统还可以提供井孔压裂流体压力的测量，或用于将交联剂递送到井的特定部分。 BHA可以包括紧急封隔器放气装置，以便在封隔器失去锚固在套管上的能力的情况下迅速地使封隔器放气。