公开(公告)号：US20120000658A1

公开(公告)日：2012-01-05

申请号：US12826856

申请日：2010-06-30

申请人： Earl J. Coludrovich, III ,  H. Mitchell Cornette ,  Thomas G. Corbett ,  John Cameron

发明人： Earl J. Coludrovich, III ,  H. Mitchell Cornette ,  Thomas G. Corbett ,  John Cameron

IPC分类号： E21B43/16

CPC分类号： E21B21/00 ,  E21B47/10

摘要： The present invention is, in some embodiments directed to methods for optimizing wellbore displacement operations via in situ fluid property assessment/monitoring. By monitoring fluid properties in situ (i.e., downhole), fluid property assessment is direct instead of being inferred. Additionally, wherein such assessment/monitoring is carried out in real time, changes to the displacement fluid can be made “on-the-fly,” thereby contributing to an enhancement of the overall efficiency of the method.

摘要翻译： 在一些实施例中，本发明涉及通过原位流体性质评估/监测优化井筒位移操作的方法。 通过现场监测流体性质（即井下），流体性质评估是直接的，而不是被推断。 另外，其中这样的评估/监测是实时进行的，所以可以“即时”地对位移流体进行改变，从而有助于提高该方法的整体效率。

公开(公告)号：US20110237467A1

公开(公告)日：2011-09-29

申请号：US12731938

申请日：2010-03-25

申请人： H. Mitchell Cornette ,  Craig Gardner ,  Ben Bloys ,  Earl Coludrovich ,  Thomas G. Corbett ,  Henry Bergeron

发明人： H. Mitchell Cornette ,  Craig Gardner ,  Ben Bloys ,  Earl Coludrovich ,  Thomas G. Corbett ,  Henry Bergeron

IPC分类号： C09K8/68

CPC分类号： C09K8/03 ,  C09K8/32 ,  C09K8/52 ,  C09K8/70 ,  C09K2208/04 ,  C09K2208/10 ,  C09K2208/32

摘要： The present invention is directed to completion fluid compositions and methods of making same. Such completion fluids are unique in that they utilize nanoparticles as weighting (densification) agents that increase the specific gravity (or density) of the fluid into which they are dispersed. Depending on their properties, such nanoparticulate weighting agents can vastly broaden the types of base fluid used in the completion fluid, permitting the use of non-aqueous and even hydrocarbon base fluids. Additionally, such nanoparticle-densified completion fluids can provide reduced environmental risks, and the nanoparticle weighting agents used therein can be more easily recovered from the based fluids into which they are dispersed.

摘要翻译： 本发明涉及完成流体组合物及其制备方法。 这样的完井液是独特的，因为它们利用纳米颗粒作为增加其分散在其中的流体的比重（或密度）的加重（致密化）试剂。 根据其性质，这种纳米颗粒增重剂可以极大地拓宽完井液中使用的基础流体的类型，允许使用非水基和甚至烃基流体。 此外，这种纳米颗粒致密化的完井液可以提供降低的环境风险，并且其中使用的纳米颗粒加重剂可以更容易地从其分散在其中的基础流体中回收。

公开(公告)号：US07647968B2

公开(公告)日：2010-01-19

申请号：US11746991

申请日：2007-05-10

申请人： Thomas G. Corbett ,  Christian F. Bayne

发明人： Thomas G. Corbett ,  Christian F. Bayne

IPC分类号： E21B43/04

CPC分类号： E21B43/04 ,  E21B43/08 ,  E21B43/088

摘要： A transition piece is provided near an end of a screen assembly to allow transition from a lighter weight and collapse resistant pipe under the screen sections to a heavier wall and higher collapse strength pipe between the top of the screen and the isolation packer. When a screen out occurs, the heavier wall pipe can handle the new pressures that are applied to the formation and to the tubular to try to collapse it. The screen portion can still be built with thinner wall pipe as the screen out condition protects that pipe from collapse pressure because the fully gravel packed annular space keeps the surface applied pump pressure from exerting a collapse force on the base pipe under the screen.

摘要翻译： 在屏幕组件的端部附近设置过渡件，以允许从屏幕部分下方的较轻重量和抗倒塌管道过渡到屏幕顶部和隔离封隔器之间的较重壁和较高的塌陷强度管。 当出现筛选时，较重的壁管可以处理施加到地层和管子的新压力以试图将其压扁。 屏幕部分仍然可以用更薄的壁管构建，因为屏幕排出状态保护管道免受坍塌压力，因为完全砾石填充的环形空间使表面施加的泵压力不会在屏幕下方的基管上施加塌陷力。

公开(公告)号：US07451816B2

公开(公告)日：2008-11-18

申请号：US11900864

申请日：2007-09-13

申请人： Thomas G. Corbett ,  Anderson Da Silva Amaral ,  Kenneth MacDonald ,  William Triplett

发明人： Thomas G. Corbett ,  Anderson Da Silva Amaral ,  Kenneth MacDonald ,  William Triplett

IPC分类号： E21B43/04

CPC分类号： E21B43/045 ,  E21B34/06 ,  E21B43/04

摘要： A well packing system and method for operating a well packing system wherein an isolation string assembly has a lower circulation valve with lateral flow ports that are operated to an open position without the use of shifters on a wash pipe. The isolation string assembly is incorporated into a well packing assembly within a wellbore and includes an upper sleeve tool that provides selective production of fluids through the frac pack assembly. In addition, the isolation string includes a lower circulation valve having a sliding sleeve that is shiftable from an open position to a closed position upon receipt of a suitable pressure differential. This configuration is particularly valuable for permitting monitoring of pressure or other conditions in the annulus of the wellbore portion being packed during packing operations. Further, the lower circulation valve tool can be used to selectively allow fluid returns during the packing operation.

摘要翻译： 一种用于操作井筒包装系统的良好包装系统和方法，其中隔离串组件具有下部循环阀，其具有横向流动端口，其在洗涤管上不使用换档器而操作至打开位置。 隔离柱组件被并入到井眼内的井密封组件中，并且包括上套筒工具，其提供通过压裂组件的流体的选择性生产。 此外，隔离串包括具有滑动套筒的下循环阀，该滑动套筒在接收到合适的压力差时可从打开位置移动到关闭位置。 该配置对于允许监测在包装操作期间包装的井眼部分的环空中的压力或其他条件是特别有价值的。 此外，下循环阀工具可用于在包装操作期间选择性地允许流体返回。

公开(公告)号：US07128151B2

公开(公告)日：2006-10-31

申请号：US10715779

申请日：2003-11-17

申请人： Thomas G. Corbett

发明人： Thomas G. Corbett

IPC分类号： E21B43/04

CPC分类号： E21B34/14 ,  E21B43/045

摘要： A gravel packing method and apparatus allows setting the packer by dropping a ball to a seat that it isolated from the effects of formation pressures when trying to set the packer. This is accomplished by isolation of the gravel pack outlet port when setting the packer and locating the ball seat in a position where the effects of formation pressure are irrelevant. Additionally, by positioning the evacuation ports above a seal bore in the screen extension during circulation or squeeze to deposit gravel and further putting check valves in the evacuation ports, the evacuation step after circulation or squeeze can be accomplished without having to reposition the crossover. The crossover is supported from the packer and movement of the crossover away and back to the support from the packer operates a valve to allow squeezing when the valve is closed and circulating and reversing out when the valve is open. Thus, the gravel pack method and apparatus facilitates circulation, squeeze and reverse circulation in a single supported position.

摘要翻译： 砾石包装方法和装置允许通过在试图设置封隔器时将球落到与地层压力的作用隔离的座上来设置封隔器。 这是通过在设置封隔器时将砾石包装出口隔离并将球座定位在地层压力的影响无关的位置来实现的。 另外，通过在循环中将排出口定位在筛网延伸部分的密封孔上方，或挤压沉积砾石并进一步将止回阀放入抽空口中，可以实现循环或挤压后的抽空步骤，而无需重新定位交叉。 交换器由封隔器支撑，并且离合器的运动离开并返回到封隔器的支撑件上操作阀门，以允许当阀门闭合并循环时挤压，并在​​阀门打开时反向。 因此，砾石包装方法和装置便于在单个支撑位置中的循环，挤压和反向循环。