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91. 发明专利

GB2452890B Shear type circulation valve and swivel with open port reciprocating feature 未知
公开(公告)号：GB2452890B
公开(公告)日：2010-09-08
申请号：GB0823019
申请日：2007-05-25
申请人： BAKER HUGHES INC
发明人： ASHY THOMAS M , HERN GREGORY L
IPC分类号： E21B21/10 , E21B23/00
摘要： A tool and associated method allows a liner top to be dressed. Then while maintaining a lateral port closed the tool can be used to circulate while being rotated and reciprocated. The tool features discrete j-slot mechanisms. The upper j-slot allows the lateral port to initially open while the lower j-slot keeps the lateral port open despite movement of the tool in opposed directions in the hole due to a barrier to the pin in the lower j-slot. When enough weight is set or the barrier is otherwise removed, the lateral port can be closed and the test packer set by set down weight with the lateral port closed. After the packer is unset the lateral ports can be reopened and circulation and swiveling on a bearing can occur even if the packer is temporarily actuated from the setting down motion that reopened the lateral ports.

92. 发明专利

AU2008202960A1 Convertible tubular scraper 未知
公开(公告)号：AU2008202960A1
公开(公告)日：2008-07-31
申请号：AU2008202960
申请日：2008-07-03
申请人： BAKER HUGHES INC
发明人： HERN GREGORY L , MCNICOL JAMES M
IPC分类号： E21B37/02 , E21B17/046 , E21B17/06
摘要： A tubular scraper which can be assembled so that the blades will be either rotating or non-rotating, as desired. If the tubular scraper is assembled in the non-rotating configuration, and the blades becomes stuck in the casing, the drill string can be pulled upward to engage a clutch. Once the clutch is engaged, the scraper is converted to a rotating scraper, so that the drill string can be rotated to assist in dislodging the stuck scraper blades.

93. 发明专利

NO325378B1 未知
公开(公告)号：NO325378B1
公开(公告)日：2008-04-14
申请号：NO20014863
申请日：2001-10-05
申请人： BAKER HUGHES INC
发明人： HERN GREGORY L , HAUGHTON DAVID B , BRUMLEY KENNETH A , DAVIS JOHN P
IPC分类号： E21B29/04 , E21B31/16

94. 发明专利

AU785411B2 Screened boot basket/filter 未知
公开(公告)号：AU785411B2
公开(公告)日：2007-05-03
申请号：AU3706302
申请日：2002-04-29
申请人： BAKER HUGHES INC
发明人： LYNDE GERALD D , HERN GREGORY L
IPC分类号： E21B37/00 , E21B27/00 , E21B31/08
摘要： A downhole debris filtering apparatus has the flow diverter retracted as the tool is run in. Settling velocity is the rate at which debris will fall through the fluid. Settling velocity is dependent on the density of the fluid and the debris density. If the fluid velocity exceeds the settling velocity, the debris will rise. The restricted annular area outside the screens raises the fluid velocity. Above the cup sleeve, the annular area increases significantly and the fluid velocity is reduce to below the settling velocity to allow debris to settle to the bottom of the tool. On run in, the fluid merely bypasses on the outside of the filter. Large debris will settle into the tool as described. When pulled out of the hole the swab cup/flow diverter is actuated into casing or liner wall contact and a large passage is opened to allow flow though the filter. Small debris that has risen above the tool will be captured as the fluid is filtered through the screen. Another embodiment with a non-retractable cup uses a sliding sleeve valve with a large open area.

95. 发明专利

NO322921B1 未知
公开(公告)号：NO322921B1
公开(公告)日：2006-12-18
申请号：NO20022096
申请日：2002-05-02
申请人： BAKER HUGHES INC
发明人： HERN GREGORY L , LYNDE GERALD D
IPC分类号： E21B37/00 , E21B27/00 , E21B31/08 , E21B43/08
摘要： A downhole debris filtering apparatus has the flow diverter retracted as the tool is run in. Settling velocity is the rate at which debris will fall through the fluid. Settling velocity is dependent on the density of the fluid and the debris density. If the fluid velocity exceeds the settling velocity, the debris will rise. The restricted annular area outside the screens raises the fluid velocity. Above the cup sleeve, the annular area increases significantly and the fluid velocity is reduce to below the settling velocity to allow debris to settle to the bottom of the tool. On run in, the fluid merely bypasses on the outside of the filter. Large debris will settle into the tool as described. When pulled out of the hole the swab cup/flow diverter is actuated into casing or liner wall contact and a large passage is opened to allow flow though the filter. Small debris that has risen above the tool will be captured as the fluid is filtered through the screen. Another embodiment with a non-retractable cup uses a sliding sleeve valve with a large open area.

96. 发明专利

AU783244B2 Hydraulic wireline cutter 未知
公开(公告)号：AU783244B2
公开(公告)日：2005-10-06
申请号：AU7558701
申请日：2001-09-21
申请人： BAKER HUGHES INC
发明人： BRUMLEY KENNETH A , DAVIS JOHN P , HERN GREGORY L , HAUGHTON DAVID B
IPC分类号： E21B29/04 , E21B31/16

97. 发明专利

CA2357820C HYDRAULIC WIRELINE CUTTER 未知
公开(公告)号：CA2357820C
公开(公告)日：2004-11-30
申请号：CA2357820
申请日：2001-09-26
申请人： BAKER HUGHES INC
发明人： BRUMLEY KENNETH A , HAUGHTON DAVID B , DAVIS JOHN P , HERN GREGORY L
IPC分类号： E21B29/04 , E21B31/16 , E21B31/00 , E21B23/14
摘要： A combination tool for attaching to a stuck wireline tool, then cutting the wireline just above the stuck tool with a hydraulically driven cutter, allowing the wireline to be pulled out of the hole before fishing out the stuck tool. A side door can be provided on the work string, to allow rerouting of the wireline outside the work string, after which the stuck tool can be unstuck and repositioned within the well bore for completion of the downhole operation o f the tool, prior to cutting the wireline free from the downhole tool.

98. 发明专利

GB2387399B Convertible tubular scraper 未知
公开(公告)号：GB2387399B
公开(公告)日：2004-05-05
申请号：GB0305726
申请日：2003-03-13
申请人： BAKER HUGHES INC
发明人： HERN GREGORY L , MCNICOL JAMES M
IPC分类号： E21B17/046 , E21B17/06 , E21B37/02 , E21B37/00
摘要： A tubular scraper which can be assembled so that the blades will be either rotating or non-rotating, as desired. If the tubular scraper is assembled in the non-rotating configuration, and the blades becomes stuck in the casing, the drill string can be pulled upward to engage a clutch. Once the clutch is engaged, the scraper is converted to a rotating scraper, so that the drill string can be rotated to assist in dislodging the stuck scraper blades.

99. 发明专利

GB2387399A Scraper tool 未知
公开(公告)号：GB2387399A
公开(公告)日：2003-10-15
申请号：GB0305726
申请日：2003-03-13
申请人： BAKER HUGHES INC
发明人： HERN GREGORY L , MCNICOL JAMES M
IPC分类号： E21B17/046 , E21B17/06 , E21B37/02 , E21B37/00
摘要： A tubular scraper tool comprises a scraper blade sleeve 30 mounted on a mandrel 50 in a non-torque transferring relationship, scraper blades 42 mounted on the scraper blade sleeve 30, and a clutch mechanism 34 and 36 adapted to selectively engage the scraper blade sleeve 30 with a sub 10 in a torque transfer relationship. The tubular scraping tool is a combination of a rotating and a non-rotating scraper tool. Whilst operating in its non-rotational mode, and when the scraper blades 42 become stuck in the casing, the mandrel 50 is pulled upwards to break a shear pin 62 to engage the clutch mechanism 34 and 36. The non-rotating scraper tool then becomes a rotating scraper tool, whereby the rotational movement of the mandrel 50 allows the scraper blades 42 to rotate to free themselves from the casing.

100. 发明专利

AU3706302A Screened boot basket/filter 未知
公开(公告)号：AU3706302A
公开(公告)日：2002-11-07
申请号：AU3706302
申请日：2002-04-29
申请人： BAKER HUGHES INC
发明人： LYNDE GERALD D , HERN GREGORY L
IPC分类号： E21B27/00 , E21B31/08 , E21B37/00 , E21B43/02
摘要： A downhole debris filtering apparatus has the flow diverter retracted as the tool is run in. Settling velocity is the rate at which debris will fall through the fluid. Settling velocity is dependent on the density of the fluid and the debris density. If the fluid velocity exceeds the settling velocity, the debris will rise. The restricted annular area outside the screens raises the fluid velocity. Above the cup sleeve, the annular area increases significantly and the fluid velocity is reduce to below the settling velocity to allow debris to settle to the bottom of the tool. On run in, the fluid merely bypasses on the outside of the filter. Large debris will settle into the tool as described. When pulled out of the hole the swab cup/flow diverter is actuated into casing or liner wall contact and a large passage is opened to allow flow though the filter. Small debris that has risen above the tool will be captured as the fluid is filtered through the screen. Another embodiment with a non-retractable cup uses a sliding sleeve valve with a large open area.

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