公开(公告)号：US07210527B2

公开(公告)日：2007-05-01

申请号：US11390226

申请日：2006-03-27

申请人： David Joseph Walker ,  Wade Rebardi ,  Marvin Bryce Traweek ,  Floyd Bishop

发明人： David Joseph Walker ,  Wade Rebardi ,  Marvin Bryce Traweek ,  Floyd Bishop

IPC分类号： E21B43/04

CPC分类号： E21B37/06 ,  E21B43/04 ,  E21B43/25

摘要： A method for completing a well in a single trip, including: inserting a completion tool assembly into the well, the completion tool assembly having a gravel packing assembly and a service tool assembly slidably positioned substantially within an interior cavity in the gravel packing assembly; removably coupling the service tool assembly and the gravel packing assembly; plugging at a first location, whereby fluid is blocked from flowing through the interior channel; diverting fluid blocked by the plugging at the first location through a first fluid flow path to an exterior of the completion tool assembly; circulating a gravel pack slurry through the completion tool assembly; plugging at a second location, whereby fluid is blocked from flowing through the interior channel; diverting fluid blocked by the plugging at the second location through a second flow path that reenters the interior channel at a location distal of the first and second plugging locations; and circulating a filter cake stimulating fluid through the well completion assembly.

摘要翻译： 一种用于在单次行程中完成井的方法，包括：将完井工具组件插入井中，完井工具组件具有砾石包装组件和可滑动地定位在砾石填料组件内的内腔内的维修工具组件; 可拆卸地联接维修工具组件和砾石包装组件; 堵塞在第一位置，由此阻止流体流过内部通道; 通过第一流体流动路径在第一位置处的堵塞阻塞的转向流体到完成工具组件的外部; 使砾石充填浆液循环通过完井工具组件; 堵塞在第二位置，由此阻止流体流过内部通道; 通过在第一和第二堵塞位置的远端的位置处重新输入内部通道的第二流动路径在第二位置处堵塞堵塞的分流流体; 并且将滤饼刺激流体循环通过完井组件。

公开(公告)号：US07017664B2

公开(公告)日：2006-03-28

申请号：US10095182

申请日：2002-03-11

申请人： David Joseph Walker ,  Wade Rebardi ,  Marvin Bryce Traweek ,  Floyd Bishop

发明人： David Joseph Walker ,  Wade Rebardi ,  Marvin Bryce Traweek ,  Floyd Bishop

IPC分类号： E21B43/04

CPC分类号： E21B37/06 ,  E21B43/04 ,  E21B43/25

摘要： A method for completing a well in a single trip, including: inserting a completion tool assembly into the well, the completion tool assembly having a gravel packing assembly and a service tool assembly slidably positioned substantially within an interior cavity in the gravel packing assembly; removably coupling the service tool assembly and the gravel packing assembly; plugging at a first location, whereby fluid is blocked from flowing through the interior channel; diverting fluid blocked by the plugging at the first location through a first fluid flow path to an exterior of the completion tool assembly; circulating a gravel pack slurry through the completion tool assembly; plugging at a second location, whereby fluid is blocked from flowing through the interior channel; diverting fluid blocked by the plugging at the second location through a second flow path that reenters the interior channel at a location distal of the first and second plugging locations; and circulating a filter cake stimulating fluid through the well completion assembly.

公开(公告)号：US06302208B1

公开(公告)日：2001-10-16

申请号：US09312102

申请日：1999-05-14

申请人： David Joseph Walker ,  William Mark Richards

发明人： David Joseph Walker ,  William Mark Richards

IPC分类号： E21B4304

CPC分类号： E21B34/06 ,  E21B34/063 ,  E21B34/12

摘要： An isolation system having: an isolation string, wherein the isolation string has a packing assembly which secures the isolation string in a wellbore casing, wherein the isolation string has a production screen which allows production fluid to pass into the isolation string; an isolation sleeve which slides within the isolation string between open and closed positions, wherein the open position allows fluid communication between the production screen and an interior portion of the isolation string and the closed position prevents fluid communication between the production screen and an interior portion of the isolation string, wherein the isolation sleeve comprises at least one isolation valve which is coupled within the isolation sleeve, wherein the at least one isolation valve is movable between open and closed positions; a locking device which locks and unlocks the isolation sleeve in an open position, wherein the locking device comprises a trigger that secures the isolation sleeve to the isolation string before the trigger is activated and releases the isolation sleeve from the isolation string after the trigger is activated, wherein the trigger comprises: a piston collar having a solid cylindrical portion attached to the isolation sleeve and a finger portion having at least one finger, wherein the at least one finger has a head at a distal end; and at least one recess in the isolation string, wherein the head of the at least one finger is engaged in the at least one recess; a cylindrically shaped pop lock positioned adjacent the head of the at least one finger so that the head is between the pop lock and the recess, wherein the pop lock secures the head relative to the recess; and a latch attached to the service tool which couples with the pop lock, wherein the trigger is activated by removing the pop lock from the position adjacent the head; and an activation tool which allows the isolation sleeve to move to a closed position, wherein the activation tool is a piston driven by a hydrostatic chamber which comprises lower pressure within the hydrostatic chamber than without, and wherein the piston moves the isolation sleeve from the open to the closed position.