公开(公告)号：US20050279499A1

公开(公告)日：2005-12-22

申请号：US10710111

申请日：2004-06-18

申请人： Jeffrey Tarvin ,  Julian Pop ,  Simon Bittleston ,  Angus Melbourne ,  Rogerio Ramos

发明人： Jeffrey Tarvin ,  Julian Pop ,  Simon Bittleston ,  Angus Melbourne ,  Rogerio Ramos

IPC分类号： E21B33/12 ,  E21B33/13 ,  E21B43/12 ,  E21B49/08 ,  E21B49/10

CPC分类号： E21B49/10

摘要： Methods and apparatuses for sampling fluid from a subterranean formation penetrated by a wellbore are provided. The subterranean formation has clean formation fluid therein, and the wellbore has a contaminated fluid therein extending into an invaded zone about the wellbore. A shaft is extended from a housing and positioned in a perforation in a sidewall of the wellbore. At least one flowline extends through the shaft and into the housing. The flowline(s) are adapted to receive downhole fluids through the perforation. At least one fluid restrictor, such as a packer, injection fluid or flow inhibitor, may be used to isolate at least a portion of the perforation whereby contaminated fluid is prevented from entering the isolated portion of the perforation. At least one pump selectively draws fluid into the flowline(s).

摘要翻译： 提供了用于从井眼渗透的地层中取样流体的方法和装置。 地层在其中具有清洁的地层流体，并且井筒中的污染流体延伸到围绕井筒的侵入区域中。 轴从壳体延伸并且定位在井眼的侧壁中的穿孔中。 至少一条流线穿过轴延伸到壳体中。 流线适于通过穿孔接收井下流体。 可以使用至少一个流体限制器，例如封隔器，注射流体或阻流剂来隔离穿孔的至少一部分，从而防止被污染的流体进入穿孔的隔离部分。 至少一个泵选择性地将流体吸入流线。