序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 强磁打捞器及其强磁布置方法 CN201710728628.7 2017-08-23 CN107448161A 2017-12-08 庞全书; 贾财华; 孙强; 王慧; 任伟; 杨依峰; 孙立超; 金志学; 陶维维; 窦玉梅; 王铁钊
发明公开了一种强磁打捞器及其强磁布置方法,该强磁打捞器包括:中空的筒体,所述筒体具有中心轴,沿着所述中心轴的方向具有相对的上端和下端,其中,所述筒体的上端设置有用于连接打捞管柱的上接头,在所述筒体的内壁上设置有多个凹槽;至少两个强磁块设置在所述凹槽内形成强磁块组;每个所述强磁块具有相背对且磁性相反的第一磁极和第二磁极,所述强磁块组中,每个所述强磁块的第一磁极共同指向所述中心轴,所述强磁块的第二磁极共同背向所述中心轴。本发明提供的强磁打捞器及其强磁块布置方法,能够增强强磁打捞器的打捞强度和打捞效果。
2 一种具有远程操控功能的冲击式石油勘探系统 CN201610225232.6 2016-04-12 CN105863502A 2016-08-17 刘洋
发明涉及一种具有远程操控功能的冲击式石油勘探系统,包括勘探平台、无线信号收发塔和电气控制室、勘探机构,所述勘探机构包括竖直设置在勘探平台下方的钻铤和设置在钻铤底端的钻头,该具有远程操控功能的冲击式石油勘探系统中,伸缩轴外周套的电磁线圈就会通电,再由伸缩电机控制伸缩轴与金属接触,就将驱动电机吸住,能够实现驱动电机的上下移动,从而提高了石油勘探的可靠性;同时通过伸缩电机控制钻头的不断冲击,能够提高石油勘探的效率,而且该冲击控制电路中,集成电路的型号为LM555不仅能够实现对伸缩电机的钻探能进行调节,提高了系统钻探的效率,同时还具有性价比高的特点,从而降低了系统的生产成本,提高了系统的市场竞争力。
3 一种投捞器 CN201610662645.0 2016-08-12 CN106223891A 2016-12-14 朱一斌; 朱劲羽; 陈金宝; 胡斌; 赵青; 李林森; 王超
发明提供了一种投捞器,包括投捞器主体、连接头以及连接于投捞器主体和连接头之间的爪机构,爪机构包括内外设置的内爪和外爪,内爪和外爪的上端分别与投捞器主体铰接,内爪和外爪的下端分别与连接头铰接,内爪上、下两端的两个铰接点与外爪上、下两端的两个铰接点分别处于平行四边形的四个顶点上。相比现有技术中的单爪结构,连接头上设置有双爪,内爪和外爪的共同作用,使得连接头不容易向投捞器主体的方向发生偏斜,从而使堵塞器受方向与配器偏孔轴线方向尽可能一致,降低了投捞器的提拉阻力,四个铰接点分别处于平行四边形的四个顶点上,这样可以保证内爪与外爪的协同作用,从而保证内爪与外爪对连接头的共同作用。
4 真空抽吸井筒打捞、清理工具 CN201610529418.0 2016-07-07 CN105971541A 2016-09-28 侯立东; 王新强; 王华南; 代刚; 孙旭涛; 刘东明
发明提供一种真空抽吸井筒打捞、清理工具,包括能与钻具连接为一体的本体以及依次设置于本体内部的喷嘴座、导向管、筛网和单向;本体为筒状;喷嘴座固定设置于本体内侧壁上;喷嘴座上设置有一个或多个喷嘴,各个喷嘴均与喷嘴座的底面不垂直;对应的喷嘴座下侧固定设置有一个或多个导向管,导向管的直径大于喷嘴的直径,且各个导向管的中轴线与喷嘴的中轴线的延长线重合;筛网设置于导向管的下侧;单向阀设置于本体底部。该真空抽吸井筒打捞、清理工具,利用文丘里原理在装置内形成负压,将混有落物和碎屑的流体抽吸到本体内,完成打捞,打捞效果好,效率高。
5 盐井封堵改造用井筒内打捞工具 CN201610293708.X 2016-05-05 CN105863542A 2016-08-17 徐孜俊; 谢卫炜; 赵云松; 李玮; 孟各; 林峰
发明涉及盐井封堵改造技术领域,特别是一种盐井封堵改造用井筒内打捞工具,包括与井筒相适应的筒形强磁体和中空筒形护壁,所述中空筒形护壁连接在筒形强磁体下端;所述中空筒形护壁内侧固定有若干强磁条,所述强磁体的吸附大于强磁条的吸附力。采用上述结构后,本发明的盐井封堵改造用井筒内打捞工具通过强磁体和筒形护壁上的强磁条吸引落井刀具,使其能直立进入强磁筒,护壁能有效防止工具在提升过程中由于横卧突出被井眼扩大处的台阶阻挡而再次落井,导致打捞失败。
6 井下磁体、井下磁性喷砂钻具和将磁体片连接至该钻具主体的方法 CN201380052208.1 2013-10-09 CN105008658A 2015-10-28 西蒙·莱佩尔; 凯文·罗伯森
用于悬浮在井中的工具从该井中回收各种金属碎屑,包括带有多个磁体的拉长的工具主体,多个磁体包括在圆周间隔的多个纵脊中。在所述方法中,多个磁体可以定位在各脊中的开口、凹槽或袋内,并且通过一个或多个固定板固定就位,该工具被连接至钻柱并下降至井内。
7 MAGNETIC CLEANING TOOL EP13750364.5 2013-07-17 EP2888434B1 2016-12-21 COOPER, Ruairidh Andrew
A magnetic cleaning tool for collecting ferrous debris in a wellbore and a method of cleaning a wellbore. The magnetic cleaning tool has a tool body for attachment in a work string, one or more magnets supported on the tool body, and a sleeve located around the tool body which is arranged to be moveable along the body to provide selective coverage of the magnets. Embodiments are described providing shear pins and spring loaded balls to hold the sleeve either over the magnets or free of the magnets. An expandable piston, moveable by action of a drop ball, is described to release the sleeve. The sleeve is arranged so that the magnets can be covered and therefore effectively inactive on run-in and during downhole operations, and uncovered to be active when pulled out of the wellbore.
8 AN APPARATUS FOR RETRIEVING METAL DEBRIS FROM A WELL BORE EP01948400 2001-06-15 EP1373676A4 2005-05-04 RUTTLEY DAVID J
A tool for retrieving metal debris from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body (10). Each magnet assembly has a magnet member (42), which forms a primary debris settling area (70). Each magnet member is protected by a magnet protector. A secondary debris settling area is formed between a magnet and an adjacent magnet protector to allow utilization of the residual magnetic force created by the magnet members. The secondary settling area occupies at least half of the surface area of the primary settling area.
9 IMPROVED DOWNHOLE TOOL EP09785341.0 2009-07-16 EP2310621B1 2017-05-10 TELFER, George; LINKLATER, James; ATKINS, James Edward
10 Magnetic retrieval apparatus and method of construction thereof EP14191364.0 2014-10-31 EP2868862A1 2015-05-06 Sullivan, Michael K.; Meeks, Arthur Warren

A downhole retrieval tool includes a mandrel (10); an inner sleeve (30) disposed around the mandrel; a plurality of magnets (50) coupled to the inner sleeve; and an outer sleeve (25) disposed around the plurality of magnets, wherein the inner sleeve and the plurality of magnets are rotatable relative to the mandrel. In another aspect, an assembly tool for handling a magnet includes an anchor; a conveyance movable relative to the anchor; and a magnet holder coupled to the conveyance, wherein the magnet holder includes an arm for retaining the magnet.

11 MAGNET FIXING DEVICE IN A CLEANING TOOL EP08779086.1 2008-06-25 EP2167785B1 2015-03-25 HAGEN, Karluf
12 IMPROVED DOWNHOLE TOOL EP09785341.0 2009-07-16 EP2310621A2 2011-04-20 TELFER, George; LINKLATER, James; ATKINS, James Edward
A cleaning tool (1) for use in cleaning ferrous material from a wellbore has a magnetic cleaning element (14) mounted to a tool body (2) within a slot (5) using a releasable concealed interference fit fastener assembly (15) comprising a fastener member having a head (16), and a shank (17) with a configured end (18) and a deformable fastener ring (20) adapted to fit closely over the shank, and a press-fit collar (21) adapted to deform the deformable fastener ring upon the configured end of the shank when assembled, and wherein the respective head and collar are each flanged to permit an interference fit with a corresponding contact surface of the tool body around said slot.
13 MAGNET FIXING DEVICE IN A CLEANING TOOL EP08779086.1 2008-06-25 EP2167785A1 2010-03-31 HAGEN, Karluf
A magnet fixing device in a cleaning tool (1) for use in a borehole where the cleaning tool (1) is externally provided with at least one projection (8) and at least two recesses (6) and where at least one magnet (12) is disposed in the projection (8), as the magnetic field from the at least one magnet (12) is active in that it is arranged to at least attract a magnet sensitive material (20) into a recess (6) or hold the material (20) in the recess (6), and where the mag- net (12) runs through the projection (8), whereby the one magnet (12) pole is active in a first recess (6) while the other magnet (12) pole is active in a second recess (6).
14 PETROLEUM WELL DRILL- OR COILED TUBING STRING MOUNTED FISHING TOOL EP13703649.7 2013-01-14 EP2943643B1 2017-07-19 SKJEIE, Trond
15 DOWNHOLE MAGNET, DOWNHOLE MAGNETIC JETTING TOOL AND METHOD OF ATTACHMENT OF MAGNET PIECES TO THE TOOL BODY EP13845080.4 2013-10-09 EP2909431B1 2017-06-07 LEIPER, Simon; ROBERTSEON, Kevin
16 PETROLEUM WELL DRILL- OR COILED TUBING STRING MOUNTED FISHING TOOL EP13703649.7 2013-01-14 EP2943643A1 2015-11-18 SKJEIE, Trond
The invention is a petroleum well drill- or coiled tubing string (1, lb) mounted fishing tool, comprising a main body (2) comprising a lower housing (2a) with a magnet (3) having at least one magnet surface (3f) facing downwards in said well at a lower end of said lower housing (2a) and arranged for catching and holding undesired magnetic objects present in said well, said main body (2) provided with a connector to said drill- or coiled tubing string (1, lb) at its upper end. The tool further comprises a generally cylindrical upper housing (2b) with a central channel (4) with laterally directed curl flow forming nozzles (6) through the cylindrical wall of said upper housing (2b), said nozzles (6) leading out into one or more helical grooves (7a) between helical ridges (7b), said magnet (3) comprising permanent magnets (31, 32, 33, 34, 35) arranged in a magnetization pattern which concentrates their combined magnetic flux through said downwards facing surface (3f), said upper housing's (2b) vertical channel (4) extending near its lower end to peripherally directed channels (5a) extending to an outer wall of said lower housing (2a) about said magnets (3, 31, 32, 33, 34, 35) and leading to axially directed peripheral nose ports (5b) at a peripheral lower end of said lower housing (2a) and arranged for flushing fluid ahead of said magnet (3, 31, 32, 33, 34, 35), said central channel (4) provided with a vertically displaceable cylindrical flow control sleeve (8) which is provided with a closing seat (81) near its lower end so as for receiving a ball (82) for shutting off the flow to said nose ports (5b) and redirecting said flow through apertures (84, 84a, 84b, 84c) in the wall of said sleeve (8) to said curl flow forming nozzles (6).
17 DOWNHOLE MAGNET, DOWNHOLE MAGNETIC JETTING TOOL AND METHOD OF ATTACHMENT OF MAGNET PIECES TO THE TOOL BODY EP13845080 2013-10-09 EP2909431A4 2015-09-23 LEIPER SIMON; ROBERTSEON KEVIN
18 DOWNHOLE MAGNET, DOWNHOLE MAGNETIC JETTING TOOL AND METHOD OF ATTACHMENT OF MAGNET PIECES TO THE TOOL BODY EP13845080.4 2013-10-09 EP2909431A1 2015-08-26 LEIPER, Simon; ROBERTSEON, Kevin
A tool for suspending in a well retrieves various metal debris from the well, and includes an elongated tool body with a plurality of magnets included in a plurality longitudinal ridges which are circumferentially spaced. In the method a plurality of magnets can be positioned within openings, recesses, or pockets in each ridge, and held in place by one or more retaining plates, the tool being connected to a drill string and lowered into a well.
19 MAGNETIC CLEANING TOOL EP13750364.5 2013-07-17 EP2888434A2 2015-07-01 COOPER, Ruairidh Andrew
A magnetic cleaning tool for collecting ferrous debris in a wellbore and a method of cleaning a wellbore. The magnetic cleaning tool has a tool body for attachment in a work string, one or more magnets supported on the tool body, and a sleeve located around the tool body which is arranged to be moveable along the body to provide selective coverage of the magnets. Embodiments are described providing shear pins and spring loaded balls to hold the sleeve either over the magnets or free of the magnets. An expandable piston, moveable by action of a drop ball, is described to release the sleeve. The sleeve is arranged so that the magnets can be covered and therefore effectively inactive on run-in and during downhole operations, and uncovered to be active when pulled out of the wellbore.
20 MAGNET FIXING DEVICE IN A CLEANING TOOL EP08779086 2008-06-25 EP2167785A4 2014-09-24 HAGEN KARLUF
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