公开(公告)号：US06575251B2

公开(公告)日：2003-06-10

申请号：US09880376

申请日：2001-06-13

Applicant: Graham Watson ,  Gary Hurst ,  H. Steven Bissonnette ,  Geoffrey Kernick ,  Colin Price-Smith

Inventor： Graham Watson ,  Gary Hurst ,  H. Steven Bissonnette ,  Geoffrey Kernick ,  Colin Price-Smith

IPC: E21B33127

CPC classification number: E21B33/127

Abstract: The present invention discloses apparatus and methods for use in wellbores that comprise an inflatable element. The inflatable element is adapted for inflation by gravel. One embodiment of the invention is a method of sealing an annulus in a well that comprises expanding the inflatable element with a gravel laden slurry. The inflatable element comprises a passageway communicating between an exterior and an interior of the inflatable element. The inflatable element is capable of being connected to a sand screen and the inflatable element can be inflated with the gravel laden slurry during a gravel packing of the well.

公开(公告)号：US07152677B2

公开(公告)日：2006-12-26

申请号：US10344584

申请日：2001-09-20

Applicant: Mehmet Parlar ,  Colin Price-Smith ,  Raymond Tibbles ,  Gary Hurst

Inventor： Mehmet Parlar ,  Colin Price-Smith ,  Raymond Tibbles ,  Gary Hurst

IPC: E21B43/04 ,  E21B43/26

CPC classification number: E21B43/267 ,  E21B43/04 ,  E21B43/14

Abstract: The present invention provides a method for gravel packing a open-hole wellbore having a filter cake, comprising pumping a gravel slurry into a first portion of an annulus between the wellbore and a screen, at a sufficient rate and pressure to form at least a first fracture and diverting the gravel slurry to a second portion of said annulus through alternate flowpaths while providing hydraulic isolation between the first and the second portion of said interval, thereby preventing flowback from said second portion to said first portion and resulting extension of the first fracture, and thereby forming a second fracture in said second portion of said interval.

Abstract translation: 本发明提供了一种用于将具有滤饼的开孔井筒砾石填充的方法，包括以足够的速率和压力将砾石浆料泵送到井筒和筛网之间的环空的第一部分中，以形成至少第一 断裂并通过交替的流动路径将砾石浆料转移到所述环形空间的第二部分，同时在所述间隔的第一和第二部分之间提供液压隔离，从而防止从所述第二部分回流到所述第一部分并导致第一断裂的延伸， 从而在所述间隔的所述第二部分中形成第二断裂。