公开(公告)号：US06227291B1

公开(公告)日：2001-05-08

申请号：US09256792

申请日：1999-02-24

申请人： Mark Carmichael ,  Paul Howlett

发明人： Mark Carmichael ,  Paul Howlett

IPC分类号： E21B3702

CPC分类号： E21B37/02

摘要： A well cleaning tool for cleaning the inside walls of a well casing has at least two types of cleaning members; for example it may have a row of scraper blades and a row of brushes. The tool may also include one or more rotatable stabilizers that serve to maintain contact of the tool with the internal casing walls. The tool provides for obtaining the benefits of different types of cleaning members from a single trip into a well bore.

摘要翻译： 用于清洁井套管的内壁的清洁工具具有至少两种类型的清洁构件; 例如，它可能有一排刮刀和一排刷子。 工具还可以包括一个或多个可旋转的稳定器，其用于保持工具与内部壳体壁的接触。 该工具提供从单次行进到井眼中获得不同类型的清洁构件的益处。

公开(公告)号：US06758275B2

公开(公告)日：2004-07-06

申请号：US10222544

申请日：2002-08-16

申请人： Burt Martin

发明人： Burt Martin

IPC分类号： E21B3702

CPC分类号： E21B37/04 ,  E21B29/10

摘要： A method for cleaning and/or altering an inside surface and shape of a tubular in a wellbore. The method includes placing a surface finishing tool in the tubular, energizing the surface finishing tool, and causing extendable assemblies therein to extend radially to contact an inside diameter of the tubular. Moving the surface finishing tool axially and/or rotationally while the extended members are in contact with the inside diameter of the tubular cleans debris from the inside surface of the tubular. In another aspect of the invention, the tool burnishes the inside diameter of the tubular, thereby altering the surface characteristics and rounding the tubular.

摘要翻译： 一种用于清洁和/或改变井筒内管表面和形状的方法。 该方法包括将表面精加工工具放置在管状件中，激励表面精加工工具，并使其中的可延伸组件径向延伸以接触管状物的内径。 当延伸部件与管状物的内径接触时，轴向和/或旋转地移动表面精加工工具，从管状物的内表面清除碎屑。 在本发明的另一方面，该工具抛光管状物的内径，从而改变表面特性并使管状物倒圆。

公开(公告)号：US06749019B2

公开(公告)日：2004-06-15

申请号：US10042824

申请日：2002-01-07

申请人： Xiaoyan Liu

发明人： Xiaoyan Liu

IPC分类号： E21B3702

CPC分类号： E21B37/02

摘要： An automatic paraffin removal unit, including a scraper body, a tumbler, an arc spring leaf and a return torque spring, and the upper and lower commutators having a sleeve, an open spacing ring and a tower spring. In operation, the scraper is clamped on a pumping rod, while the upper, lower commutators are respectively connected to the upper, lower ends of the tubing section from the well head to the section having toe temperature lower than paraffin deposition temperature requiring paraffin removal. The scraper moves up and down following the pumping rod via unidirectional upward or downward movement, paraffin removal being performed to the inner wall of tubing and pumping rod unceasingly, and variations in direction being performed in the upper, lower commutators.

摘要翻译： 一种自动除石装置，包括刮刀体，翻转开关，弧形弹簧叶片和返回扭矩弹簧，上下换向器具有套筒，开口间隔环和塔架弹簧。 在操作中，刮刀被夹紧在泵杆上，而上，下换向器分别从井口连接到管段的上下端，其具有低于石蜡沉积温度的部分，其需要石蜡去除。 刮刀通过单向向上或向下运动沿着泵杆上下移动，不断地对管道和泵杆的内壁进行石蜡去除，并且在上，下换向器中执行方向的变化。

公开(公告)号：US06695058B1

公开(公告)日：2004-02-24

申请号：US09958012

申请日：2002-01-07

申请人： Clive French

发明人： Clive French

IPC分类号： E21B3702

CPC分类号： E21B21/002 ,  E21B27/04 ,  E21B37/02

摘要： A method of cleaning a casing-lined borehole comprises the steps of: circulating fluid in the borehole to entrain material in the circulating fluid; separating the entrained material from the fluid within the borehole; and then removing the separated material from the borehole.

摘要翻译： 清洁套管钻孔的方法包括以下步骤：在钻孔中循环流体以将材料夹带在循环流体中; 将夹带的材料与钻孔内的流体分离; 然后从钻孔中取出分离的材料。

公开(公告)号：US06546581B1

公开(公告)日：2003-04-15

申请号：US09510935

申请日：2000-02-22

申请人： George Swietlik ,  Matthew Clubb

发明人： George Swietlik ,  Matthew Clubb

IPC分类号： E21B3702

CPC分类号： E21B37/02 ,  B08B9/045

摘要： A casing scraper for cleaning the internal wall of a tube 26 such as a well casing has at least three, rigidly connected, axially and angularly spaced scraper bodies 12, 14, 16 each with a scraping surface 13, 15, 17. The radial dimension of the scraper at each scraping surface is slightly greater than the internal radius of the tube which it will scrape. When the scraper is fully inserted in the tube bore, the scraping surfaces are deflected inwardly and the axial connection 20, 22 between the bodies is accordingly elastically deformed. Th energy stored through this elastic deformation produces a radially outwardly acting force which presses the scraping surfaces 13, 15, 17 against the wall of the tube 26. The eccentric arrangement of the scraping surfaces, and the axial spacing between the surfaces causes the parts of the scraper connecting the scraping surfaces to be placed in bending when the scraper is in place within the tube. The bending of the intermediate parts between the scraping surfaces produces a stress which urges the scraping surfaces into contact with the tube internal surface.

摘要翻译： 用于清洁管26（例如井套管）的内壁的套管刮刀具有至少三个刚性连接的轴向和角度间隔的刮刀体12,14,16，其各自具有刮削表面13,15,17。径向尺寸 每个刮削表面上的刮刀略大于其将刮伤的管的内半径。 当刮刀完全插入管孔中时，刮削表面向内偏转，并且主体之间的轴向连接20,22相应地弹性变形。 通过这种弹性变形储存的能量产生径向向外的作用力，其将刮削表面13,15,17压靠在管26的壁上。刮擦表面的偏心布置以及表面之间的轴向间距使得 当刮刀在管内就位时，刮刀将刮刀表面连接成弯曲状态。 刮削表面之间的中间部分的弯曲产生一个促使刮削表面与管内表面接触的应力。

公开(公告)号：US06484802B1

公开(公告)日：2002-11-26

申请号：US09762252

申请日：2001-03-16

申请人： Bruce McGarian ,  Ian Gillies

发明人： Bruce McGarian ,  Ian Gillies

IPC分类号： E21B3702

CPC分类号： E21B37/02

摘要： This invention relates to apparatus for scraping the inner surface of a wellbore. A scraper assembly (2) is provided comprising a scraper element (6) incorporating: a generally cylindrical member defined by a wall having a slot extending through the wall thickness; and at least one tooth member provided on the outer surface of the wall for scraping engagement with a wellbore. The present invention thereby provides a scraper assembly which is relatively convenient and inexpensive to manufacture and which may be considered as a disposable item of downhole equipment.

摘要翻译： 本发明涉及刮削井筒内表面的装置。 一种刮刀组件（2），其包括刮刀元件（6），其包括：由壁限定的大致圆柱形构件，所述壁具有延伸穿过所述壁厚的狭槽; 以及设置在所述壁的外表面上的至少一个齿构件，用于与井眼刮削接合。 因此，本发明提供了一种刮刀组件，其相对方便且制造成本低廉，并且可被视为井下设备的一次性物品。

公开(公告)号：US06460617B1

公开(公告)日：2002-10-08

申请号：US09591819

申请日：2000-06-12

申请人： Anthony Allen

发明人： Anthony Allen

IPC分类号： E21B3702

CPC分类号： E21B37/02 ,  E21B33/1204

摘要： A casing brush for cleaning the walls of a well casing, the casing brush comprising a body (1) in which are mounted cleaning bristles (2) and an adapter (4) to connect the upper end of the body (1) to the lower end of a bridge plug. The body (1) and the adapter (4) are comprised of a material which is at least drillable by a rock bit.

摘要翻译： 一种用于清洁井套管壁的套管刷，套管刷包括主体（1），其中安装有清洁刷毛（2）和适配器（4），以将主体（1）的上端连接到下部 桥塞的末端。 主体（1）和适配器（4）由至少可被钻石钻头的材料组成。

公开(公告)号：US06745839B1

公开(公告)日：2004-06-08

申请号：US10070287

申请日：2002-02-28

申请人： Neil Andrew Abercrombie Simpson

发明人： Neil Andrew Abercrombie Simpson

IPC分类号： E21B3702

CPC分类号： E21B37/02 ,  E21B37/04

摘要： Oilfield cleaning apparatus is provided for cleaning the inner wall of an oilfield tubular. The apparatus comprises a body to be introduced into the tubular, the body being provided with annular cleaning elements. Furthermore a rotary drive acts to oscillate the cleaning elements in contact with the inner wall of the tubular to scrape debris from the inner wall with the cleaning element. Each cleaning element is mounted on a rotary bearing member which is inclined relative to its axis of rotation so as to cause the cleaning element to be oscillated axially in contact with the inner wall as the bearing member is rotated, Also a catcher tube is provided to catch the heavier debris which is not washed away by the flow of fluid up the borehole. Such apparatus provides an active cleaning action which is particularly effective in removing deposits from the inner wall of the tubular.

摘要翻译： 油田清理装置用于清理油田管的内壁。 该装置包括被引入到管状体中的主体，该主体设有环形清洁元件。 此外，旋转驱动器用于使与清洁元件的内壁接触的清洁元件摆动，以用清洁元件从内壁刮擦碎屑。 每个清洁元件安装在相对于其旋转轴线倾斜的旋转轴承构件上，以便当轴承构件旋转时使得清洁元件与内壁接触地轴向摆动，并且还提供捕集管 抓住较重的碎屑，不会被钻孔流出的水流冲走。 这种设备提供主动清洁动作，其特别有效地从管状物的内壁去除沉积物。

公开(公告)号：US06530429B2

公开(公告)日：2003-03-11

申请号：US09768536

申请日：2001-01-24

申请人： Paul David Howlett

发明人： Paul David Howlett

IPC分类号： E21B3702

CPC分类号： E21B37/02 ,  E21B17/02 ,  E21B17/1064

摘要： A cleaning tool (1) for cleaning casing within a wellbore is comprised of an upper (3) and lower (4) sleeve which are mounted via ball bearings (5) on a work string (2). The ball bearings enable the upper (3) and lower (4) sleeves to have no or negligible rotational movement notwithstanding rotation of the work string (2). The upper (3) and lower (4) sleeve limit the axial movement of the cleaning tool (1) along the work string (2). The cleaning tool (1) is further comprised of at least one lantern (6) which supports the plurality of cleaning member (7) which may be brushes or scraping blades.

摘要翻译： 用于清洁井筒内的壳体的清洁工具（1）包括通过球轴承（5）安装在工作柱（2）上的上部（3）和下部（4）套筒。 球轴承使得上（3）和下（4）套筒不会有或可忽略的旋转运动，尽管工作线（2）旋转。 上部（3）和下部（4）套筒限制清洁工具（1）沿着工作线（2）的轴向运动。 清洁工具（1）还包括至少一个支撑多个清洁构件（7）的灯（6），其可以是刷子或刮刀。

公开(公告)号：US06371207B1

公开(公告)日：2002-04-16

申请号：US09329544

申请日：1999-06-10

申请人： J. Scott Reynolds

发明人： J. Scott Reynolds

IPC分类号： E21B3702

CPC分类号： E21B21/00 ,  E21B21/001 ,  E21B37/00 ,  E21B37/10

摘要： A tubular body or mandrel incorporated into a string of tubular pipe, on which first and second swab cups and a casing scraper are mounted, is run into a cased earth borehole to displace a first fluid in the borehole, usually a drilling fluid, with a second fluid, usually either a completion fluid or a workover fluid. In a first embodiment, reverse circulation, in which the second fluid is pumped into the borehole annulus above the swab cups, and in which the first fluid is thereby pumped back towards the earth's surface through the interior of the string of tubular pipe, causes displacement of the first fluid merely by lowering the string of pipe while pumping the second fluid into the borehole annulus. In a second embodiment, using normal circulation, the first fluid is pumped from the earth's surface downwardly through the interior of the string of tubular pipe into the borehole annulus between the pair of swab cups. The first fluid is then displaced from the preselected zone of the cased borehole by raising or lowering the string of tubular pipe. In an alternative embodiment, the tubular pipe, upon which the swab cups and casing scrapers are mounted, is pulled out of the riser or cased borehole to displace the undesired fluid in the riser or cased borehole. In yet another embodiment, a plurality of large swab cups are shearingly secured to the tubular body and a plurality of smaller swab cups are secured to the tubular body, which also includes one or more spring-loaded casing scrapers mounted below the smaller swab cups, thereby allowing the apparatus to be used in progressively smaller diameter casing during the same operation of the apparatus.

摘要翻译： 结合到管状管柱中的管状体或心轴，其上安装有第一和第二拭子杯和套管刮刀，管状体或心轴进入套管地球钻孔中，以将钻孔中的第一流体（通常为钻井液）移位， 第二流体，通常是完井液或修井液。 在第一实施例中，其中第二流体被泵送到拭子杯上方的钻孔环中的反向循环，并且其中第一流体通过管状管的内部被泵送回地球表面，导致位移 仅通过在将第二流体泵送到钻孔环中的同时降低管道的管线。 在第二实施例中，使用正常循环，将第一流体从地球表面向下泵送通过管状管柱的内部进入该对拭子杯之间的钻孔环。 然后通过升高或降低管状管道，使第一流体从套管钻孔的预选区域移位。 在替代实施例中，安装有拭子杯和套管刮刀的管状管被从提升管或套管钻孔中拉出以置换提升管或套管钻孔中的不期望的流体。 在另一个实施例中，多个大拭子杯被剪切地固定到管状体上，并且多个较小的棉签杯固定到管状体上，该管状体还包括一个或多个安装在较小拭子杯下方的弹簧加载的外壳刮板， 从而允许在装置的相同操作期间将装置用于逐渐更小直径的套管中。