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92. 发明授权

US06766862B2 Expandable sand control device and specialized completion system and method 有权
标题翻译：可扩展砂控装置及专用完井系统及方法
公开(公告)号：US06766862B2
公开(公告)日：2004-07-27
申请号：US10342545
申请日：2003-01-15
申请人： Jiten Chatterji , R. Ashley Donaldson , Ronald G. Dusterhoft , Tommy Frank Grigsby , Travis T. Hailey, Jr. , Jackie M. LaFontaine , Philip D. Nguyen , John Podowski , Alex Procyk , Sanjay Vitthal
发明人： Jiten Chatterji , R. Ashley Donaldson , Ronald G. Dusterhoft , Tommy Frank Grigsby , Travis T. Hailey, Jr. , Jackie M. LaFontaine , Philip D. Nguyen , John Podowski , Alex Procyk , Sanjay Vitthal
IPC分类号： E21B4308
CPC分类号： E21B43/108 , E21B43/04 , E21B43/08 , E21B43/103
摘要： In general, a method is provided for completing a subterranean wellbore, and an apparatus for using the method. The method comprises positioning an expandable sand-control device in the wellbore thereby forming an annulus between the sand-control device and the wellbore; depositing a filter media in the annulus; and after the depositing step, radially expanding the sand-control device to decrease the volume of the annulus. The sand-control device can be a sand screen or slotted or perforated liner having radially extending passageways in the walls thereof, the passageways designed to substantially prevent movement of the particulate material through the passageways and into the sand-control device. Where a slotted liner is desired, the passageways can be plugged during positioning and later unplugged for production. Another embodiment of the method and apparatus presented herein comprises positioning a well-completion device into the wellbore, thereby forming an annulus between the well-completion device and the wellbore, the well-completion device having a flexible, permeable membrane sleeve surrounding an expandable sand-control device; and thereafter radially expanding the sand-control device to decrease the volume of the annulus, thereby also expanding the membrane sleeve. The well-completion device can further include a layer of filter media encased between the membrane sleeve and the sand-control device. The filter media may be of any type known in the industry. Preferably, the membrane sleeve, when expanded, substantially fills the annular space extending between the wellbore and the sand-control device by deforming to substantially contour the wellbore.
摘要翻译：通常，提供了一种用于完成地下井眼的方法，以及使用该方法的装置。该方法包括将可扩展的砂控装置定位在井眼中，从而在砂控装置与井眼之间形成环形空间; 在环空中沉积过滤介质; 并且在沉积步骤之后，径向扩张砂控制装置以减小环的体积。砂控制装置可以是在其壁中具有径向延伸的通道的砂筛或开槽或穿孔的衬套，所述通道设计成基本上防止颗粒材料通过通道并进入防砂装置的运动。在需要开槽衬管的地方，通道可以在定位期间被堵塞，并且稍后拔下来进行生产。本文提出的方法和装置的另一个实施例包括将完井装置定位到井筒中，从而在完井装置和井筒之间形成环形空间，完井装置具有围绕可膨胀砂的柔性可渗透膜套筒控制装置; 然后径向膨胀砂控装置以减小环形空间的体积，从而也使膜套筒膨胀。完井装置还可以包括封装在膜套筒和防砂装置之间的一层过滤介质。过滤介质可以是工业上已知的任何类型。优选地，当膜膨胀时，膜套通过变形基本上填充在井筒和砂控制装置之间延伸的环形空间，从而使井眼基本上轮廓。

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