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1.发明授权Monitoring flow rates while retrieving bottom hole assembly during casing while drilling operations 有权在钻井操作期间在套管期间检测井底组件时监测流量公开(公告)号：US07886847B2
公开(公告)日：2011-02-15
申请号：US12126138
申请日：2008-05-23
IPC分类号： E21B7/00
CPC分类号： E21B7/20 , E21B7/208 , E21B19/084 , E21B21/06 , E21B21/10 , E21B21/106 , E21B23/08 , E21B2021/006
摘要： A bottom hole assembly in a casing-while-drilling operation is retrieved by reducing the density of the fluid in the casing string above the bottom hole assembly, creating an upward force on the bottom hole assembly. As the bottom hole assembly moves upward in the casing string, fluid is pumped into the upper end of the annulus and displaced fluid flows out of the upper end of the casing string. The flow rate of the fluid flowing into the upper end of the annulus and the flow rate of the displaced fluid flowing out of the casing string are monitored and compared.
摘要翻译： 通过降低底部孔组件上方的套管柱中的流体的密度来回收在井下钻井操作中的井底组件，从而在井底组件上产生向上的力。 当底孔组件在套管柱中向上移动时，流体被泵送到环形空间的上端，并且被排出的流体流出套管柱的上端。 监测并比较流入环形空间的上端的流体的流量和流出套管柱的流出的流体的流量。
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公开(公告)号：US07779920B2
公开(公告)日：2010-08-24
申请号：US12125681
申请日：2008-05-22
摘要： A bottom hole assembly in a casing-while-drilling operation is retrieved by displacing the fluid in the casing string with a less dense fluid than the fluid in the annulus. The bottom hole assembly moves upward in the casing string in response to an upward force due to the different densities of fluid in the casing string and in the annulus. Displaced fluid flows out of the casing string and through a restrictive orifice of a choke. The flow area of the orifice is varied as the bottom hole assembly moves upward to control the rate at which the bottom hole assembly moves upward.
摘要翻译： 通过以比环状物中的流体更不致密的流体移动套管柱中的流体来回收在套管同时钻井操作中的井底组件。 响应于由于套管柱和环形空间中的不同流体密度而产生向上的力，底部孔组件在套管柱中向上移动。 排出的流体流出套管柱并通过扼流圈的限制孔。 当底孔组件向上移动以控制底孔组件向上移动的速率时，孔的流动面积是变化的。
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3.发明申请Retrieval Tool With Slips for Retrieving Bottom Hole Assembly During Casing While Drilling Operations 有权检索工具与钻孔操作期间在套管期间检索底孔组件公开(公告)号：US20090288886A1
公开(公告)日：2009-11-26
申请号：US12125736
申请日：2008-05-22
IPC分类号： E21B10/64
摘要： A casing-while-drilling bottom hole assembly is releasably connected with a casing string. A retrieval tool is run into the casing string and latched to the bottom hole assembly. Slips are mounted to the retrieval tool, the slips being retracted during running in. Differential pressure moves the retrieval tool and bottom hole assembly upward, and the slips engage the casing string to prevent downward movement if the pressure differential drops too low. A flow passage extends through the retrieval tool and the bottom hole assembly. A check valve in the retrieval tool allows downward flow through the flow passage but prevents upward flow, so that fluid may be circulated through the retrieval tool and bottom hole assembly while suspended with the slips.
摘要翻译： 套筒钻孔底孔组件可释放地与套管柱连接。 检索工具运行到套管柱中并锁定到底部孔组件。 滑动件安装到回收工具上，滑块在运行期间缩回。差压将提取工具和底部孔组件向上移动，并且如果压差下降太低，滑块接合套管柱以防止向下运动。 流动通道延伸穿过回收工具和底部孔组件。 回收工具中的止回阀允许向下流动通过流动通道，但是防止向上流动，使得流体可以在滑动悬挂的同时循环通过收回工具和底部孔组件。
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4.发明授权Retrieval tool with slips for retrieving bottom hole assembly during casing while drilling operations 有权检索工具，用于在钻井操作期间在套管期间检索井底组件公开(公告)号：US07845431B2
公开(公告)日：2010-12-07
申请号：US12125736
申请日：2008-05-22
摘要： A casing-while-drilling bottom hole assembly is releasably connected with a casing string. A retrieval tool is run into the casing string and latched to the bottom hole assembly. Slips are mounted to the retrieval tool, the slips being retracted during running in. Differential pressure moves the retrieval tool and bottom hole assembly upward, and the slips engage the casing string to prevent downward movement if the pressure differential drops too low. A flow passage extends through the retrieval tool and the bottom hole assembly. A check valve in the retrieval tool allows downward flow through the flow passage but prevents upward flow, so that fluid may be circulated through the retrieval tool and bottom hole assembly while suspended with the slips.
摘要翻译： 套筒钻孔底孔组件可释放地与套管柱连接。 检索工具运行到套管柱中并锁定到底部孔组件。 滑动件安装到回收工具上，滑块在运行期间缩回。差压将提取工具和底部孔组件向上移动，并且如果压差下降太低，滑块接合套管柱以防止向下运动。 流动通道延伸穿过回收工具和底部孔组件。 回收工具中的止回阀允许向下流动通过流动通道，但是防止向上流动，使得流体可以在滑动悬挂的同时循环通过收回工具和底部孔组件。
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5.发明授权公开(公告)号：US07708077B2
公开(公告)日：2010-05-04
申请号：US12125781
申请日：2008-05-22
CPC分类号： E21B7/20 , E21B10/32 , E21B21/00 , E21B21/10 , E21B21/106 , E21B33/03 , E21B33/068
摘要： A bottom hole assembly in a casing-while-drilling operation is retrieved attaching a wireline to the bottom hole assembly. The density of the fluid in the casing string is lightened to a lesser density than the fluid in the annulus, thereby creating a pressure differential between fluid above the bottom hole assembly and fluid below the bottom hole assembly to exert an upward force on the bottom hole assembly. The operator pulls upward on the wireline to assist the upward force in moving the bottom hole assembly up the casing string.
摘要翻译： 在钻探操作中的底部孔组件被检索，其将电缆连接到底部孔组件。 套管柱中的流体的密度比环形空间中的流体减轻了密度，从而在底孔组件上方的流体和底孔组件下方的流体之间产生压力差，以在底孔上施加向上的力 部件。 操作者在电缆上向上拉动以帮助向上的力使底部孔组件向上移动到套管柱上。
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6.发明授权Circulation system for retrieval of bottom hole assembly during casing while drilling operations 有权循环系统，用于在钻井作业期间在套管期间检索井底组件公开(公告)号：US07798251B2
公开(公告)日：2010-09-21
申请号：US12126315
申请日：2008-05-23
摘要： During casing-while-drilling, drilling fluid is pumped through a conduit leading to a flow passage a casing string gripper and down the casing string. A bottom hole assembly is mounted at a lower end of the casing string for drilling a wellbore. The bottom hole assembly is retrieved by mounting a circulation sub to the casing string below the casing string gripper, the circulation sub having a lateral outlet. A return flow line is connected from the outlet to the circulation system. The operator flows fluid downward in an annulus of the casing string and back up the casing string, causing the bottom hole assembly to move upward. The fluid flowing back up the casing string is diverted through the outlet in the circulation sub to the circulation system without passing through the flow passage in the casing string gripper.
摘要翻译： 在钻井套管期间，钻井液被泵送通过导管通过套管柱夹持器并沿着套管柱的管道。 井底组件安装在套管柱的下端，用于钻井。 底部孔组件通过将循环次级安装到套管柱夹持器下方的套管柱而被回收，循环底部具有侧向出口。 回流管路从出口连接到循环系统。 操作者将流体向下流动到套管柱的环形空间中，并使套管柱回升，使底部孔组件向上移动。 流过套管柱的液体通过循环中的出口被转移到循环系统中，而不会通过套管夹夹持器中的流动通道。
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7.发明申请公开(公告)号：US20090288841A1
公开(公告)日：2009-11-26
申请号：US12126315
申请日：2008-05-23
IPC分类号： E21B23/08
摘要： During casing-while-drilling, drilling fluid is pumped through a conduit leading to a flow passage a casing string gripper and down the casing string. A bottom hole assembly is mounted at a lower end of the casing string for drilling a wellbore. The bottom hole assembly is retrieved by mounting a circulation sub to the casing string below the casing string gripper, the circulation sub having a lateral outlet. A return flow line is connected from the outlet to the circulation system. The operator flows fluid downward in an annulus of the casing string and back up the casing string, causing the bottom hole assembly to move upward. The fluid flowing back up the casing string is diverted through the outlet in the circulation sub to the circulation system without passing through the flow passage in the casing string gripper.
摘要翻译： 在钻井套管期间，钻井液被泵送通过导管通过套管柱夹持器并沿着套管柱的管道。 井底组件安装在套管柱的下端，用于钻井。 底部孔组件通过将循环次级安装到套管柱夹持器下方的套管柱而被回收，循环底部具有侧向出口。 回流管路从出口连接到循环系统。 操作者将流体向下流动到套管柱的环形空间中，并使套管柱回升，使底部孔组件向上移动。 流过套管柱的液体通过循环中的出口转移到循环系统中，而不会通过套管夹夹持器中的流动通道。
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公开(公告)号：US20090288840A1
公开(公告)日：2009-11-26
申请号：US12125781
申请日：2008-05-22
IPC分类号： E21B23/08
CPC分类号： E21B7/20 , E21B10/32 , E21B21/00 , E21B21/10 , E21B21/106 , E21B33/03 , E21B33/068
摘要： A bottom hole assembly in a casing-while-drilling operation is retrieved attaching a wireline to the bottom hole assembly. The density of the fluid in the casing string is lightened to a lesser density than the fluid in the annulus, thereby creating a pressure differential between fluid above the bottom hole assembly and fluid below the bottom hole assembly to exert an upward force on the bottom hole assembly. The operator pulls upward on the wireline to assist the upward force in moving the bottom hole assembly up the casing string.
摘要翻译： 在钻探操作中的底部孔组件被检索，其将电缆连接到底部孔组件。 套管柱中的流体的密度比环形空间中的流体减轻了密度，从而在底孔组件上方的流体和底孔组件下方的流体之间产生压力差，以在井底上施加向上的力 部件。 操作者在电缆上向上拉动以帮助向上的力使底部孔组件向上移动到套管柱上。
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9.发明授权Incremental U-tube process to retrieve of bottom hole assembly during casing while drilling operations 有权在钻井操作期间，在套管期间增加U型管道工艺以回收井底组件公开(公告)号：US07604057B1
公开(公告)日：2009-10-20
申请号：US12125808
申请日：2008-05-22
CPC分类号： E21B10/64 , E21B7/208 , E21B2021/006
摘要： A bottom hole assembly is retrieved through a casing string by lightening the density of the drilling fluid in the casing string above the bottom hole assembly to a lesser density than the drilling fluid in the casing string annulus. The bottom hole assembly moves upward in the casing string in response to an upward force created by the different densities of fluid. While moving upward, less dense fluid being displaced by the upward movement of the bottom hole assembly flows from the casing string. When the bottom hole assembly stops moving upward, slips suspended it at that intermediate point in the casing string. The operator now lightens the density of the drilling fluid in the casing string below the bottom hole assembly, again creating an upward force on the bottom hole assembly that causes the bottom hole assembly to move upward in the casing string.
摘要翻译： 通过将井底组件上方的套管柱中的钻井液的密度减轻到比套管柱环中的钻井液更小的密度，通过套管柱来回收井底组件。 底孔组件响应于由不同密度的流体产生的向上的力而在套管柱中向上移动。 当向上移动时，较低密度的流体被底部孔组件的向上运动移位，从套管柱流出。 当底孔组件停止向上移动时，滑块将其悬挂在套管柱的中间点。 操作员现在可以减轻底部孔组件下方的套管柱中的钻井液的密度，同时在底孔组件上产生向上的力，使得底部孔组件在套管柱中向上移动。
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公开(公告)号：US20090288839A1
公开(公告)日：2009-11-26
申请号：US12125681
申请日：2008-05-22
IPC分类号： E21B23/00
摘要： A bottom hole assembly in a casing-while-drilling operation is retrieved by displacing the fluid in the casing string with a less dense fluid than the fluid in the annulus. The bottom hole assembly moves upward in the casing string in response to an upward force due to the different densities of fluid in the casing string and in the annulus. Displaced fluid flows out of the casing string and through a restrictive orifice of a choke. The flow area of the orifice is varied as the bottom hole assembly moves upward to control the rate at which the bottom hole assembly moves upward.
摘要翻译： 通过以比环状物中的流体更不致密的流体移动套管柱中的流体来回收在套管同时钻井操作中的井底组件。 响应于由于套管柱和环形空间中的不同流体密度而产生向上的力，底部孔组件在套管柱中向上移动。 排出的流体流出套管柱并通过扼流圈的限制孔。 当底孔组件向上移动以控制底孔组件向上移动的速率时，孔的流动面积是变化的。
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