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    • 2. 发明申请
    • OUTIL DE FORAGE DIRECTIONNEL
    • 方向钻孔工具
    • WO2012126947A1
    • 2012-09-27
    • PCT/EP2012/055000
    • 2012-03-21
    • VAREL EUROPEMENAND, Stéphane
    • MENAND, Stéphane
    • E21B7/06E21B10/32
    • E21B7/064E21B10/32E21B10/325
    • Outil de forage directionnel (13, 14) comportant une structure de coupe, formée de lames sur lesquelles sont disposées des taillants (13), et une garde (11) assurant la stabilisation de l'outil contre la paroi du puits (3), caractérisé en ce que la garde comporte une pluralité de lames pivotantes (16) passives pouvant pivoter chacune autour d'un axe (18) inséré dans la garde (12) à proximité de sa limite avec la structure de coupe sous l'action d'organes de poussée et/ou d'amortissement, de sorte que lorsque les lames pivotantes (16) sont dans leurs position nominales, la garde (12) de l'outil (1, 14) présente une forme sensiblement cylindrique.
    • 定向钻具(13,14)包括由刀片形成的切割结构,其上有切割边缘(13)和防护件(11),该工具使工具抵靠井(3)的壁稳定,其特征在于防护件包括 多个被动枢转叶片(16),其能够在推动和/或阻尼构件的作用下围绕插入在防护件(12)中的与切割结构的边界的枢轴销(18)枢转,使得当 枢转叶片(16)处于其标称位置,工具(1,14)的防护件(12)呈现大致圆柱形的形状。
    • 5. 发明申请
    • APPARATUS AND METHOD FOR DRILLING AND REAMING A BOREHOLE
    • 钻孔和钻孔的装置和方法
    • WO2004048744A2
    • 2004-06-10
    • PCT/US2003/037961
    • 2003-11-20
    • HALLIBURTON ENERGY SERVICES, INC.
    • EPPINK, Jay, M.ODELL, Albert, C. II
    • E21B
    • E21B10/325E21B10/322
    • A drilling assembly and an eccentric, adjustable diameter reamer are disclosed. The reamer includes cutter elements mounted on at least a first fixed blade for reaming a previously-formed borehole or for forming a borehole of increased diameter beneath an existing cased borehole. The method and apparatus provide for stabilizing the drilling assembly so that the reamer may be used in back reaming the hole. Retainer means, such as shear pins or spring-biased reciprocating latch members, are provided to prevent premature extension of the reamer's moveable members, including blades and pistons. The shear pins are preferably accessible from the outer surface of the reamer housing so as to expedite field replacement of the shear pins without requiring disassembly of the reamer. The spring-biased latching members repeatedly latch and unlatch so that field replacement is not required, and so that the movable members may be extended and contracted multiple times while the reamer is downhole.
    • 公开了一种钻孔组件和一个偏心的,可调直径的铰刀。 铰刀包括安装在至少第一固定刀片上的切割器元件,用于铰接预先形成的钻孔或用于在现有套管井下形成增加直径的钻孔。 该方法和装置提供了使钻孔组件稳定的方法和装置,使得铰刀可用于后孔扩孔。 提供保持器装置,例如剪切销或弹簧偏压的往复闩锁构件,以防止铰刀的可移动构件(包括叶片和活塞)的过早延伸。 剪切销优选从扩孔器外壳的外表面接近,以便加快剪切销的现场更换,而不需要拆卸铰刀。 弹簧偏置的闩锁构件反复地闩锁和解锁,从而不需要现场更换,并且使得可移动构件在铰刀在井下时可以多次伸展和收缩。
    • 7. 发明申请
    • UNDERREAMER WITH RADIAL EXPANDABLE CUTTING BLOCKS
    • 具有径向可膨胀切割块的内燃机
    • WO2016004954A1
    • 2016-01-14
    • PCT/DK2015/050205
    • 2015-07-07
    • ADVANCETECH ApS
    • SOLEM, Sigurd
    • E21B10/32E21B7/28
    • E21B10/32E21B10/322E21B10/325E21B17/1014E21B21/08E21B44/00E21B47/12
    • A cutting tool (1) for widening the diameter of a borehole and method thereof is disclosed. The cutting tool (1) comprises a housing (2) having cavity (10) in which a moveable activation element (6) is arranged. The activation element (6) is moved in an axial direction and is connected to one or more cutting blocks via a mechanical coupling (15). The mechanical coupling (15) transfers the axial movement of the action element into a radial movement of the cutting blocks. An activation unit (24) pushes the activation element (6) towards a stopping position which in turn causes the cutting blocks (11) to move out of the housing. The activation unit (24) further pulls the activation element back towards its starting position which in turn causes the cutting blocks to move back into the housing. The cutting blocks (11) extend into one or more cavities formed in the activation element, thereby increasing the travel-to-expansion ratio. The cutting blocks can be replaced by stabiliser blades (20) which are used to stabilise the drilling in the expanded borehole.
    • 公开了一种用于加宽钻孔直径的切削工具(1)及其方法。 切割工具(1)包括具有空腔(10)的壳体(2),可移动的激活元件(6)布置在该壳体中。 激活元件(6)沿轴向移动并且经由机械联接(15)连接到一个或多个切割块。 机械联轴器(15)将动作元件的轴向运动传递到切割块的径向运动。 激活单元(24)将致动元件(6)推向停止位置,该停止位置又导致切割块(11)移出壳体。 激活单元(24)进一步将激活元件拉回其起始位置,这又使得切割块移回壳体。 切割块(11)延伸到形成在激活元件中的一个或多个空腔中,从而增加行程与膨胀比。 切割块可以由用于稳定在扩大钻孔中的钻孔的稳定器叶片(20)代替。
    • 8. 发明申请
    • DOWNHOLE CLEANING TOOL AND CLEANING METHOD
    • 井下清洁工具和清洁方法
    • WO2014207084A1
    • 2014-12-31
    • PCT/EP2014/063473
    • 2014-06-26
    • WELLTEC A/S
    • LYKKEBO, Jesper Lundgaard
    • E21B37/02E21B10/32E21B43/12
    • E21B37/02E21B10/325E21B43/128
    • The present invention relates to a downhole cleaning tool for removing residues or precipitation solids on an inner face of a casing or liner. The downhole cleaning tool comprises a tool body having a bore and a wall, at least one inlet in the wall of the tool body, said inlet being fluidly connected with the bore, a solid removing element connected with the tool body for releasing solids of the inner face of the casing or liner, and a fluid cleaner section comprising a chamber, a filter within the chamber for separation of the solids from the fluid and a pump fluidly connected with the bore for sucking fluid with released solids in through the inlet into the chamber, wherein the solid removing element comprises at least one projecting part projecting from the tool body and a spring arranged between the tool body and the projecting part, and wherein the at least one inlet may be arranged adjacent the projecting parts for suction of released solids. Furthermore, the present invention relates to a downhole system and a cleaning method for removing residues or precipitation solids on an inner face of a casing or liner.
    • 本发明涉及一种用于去除壳体或衬套的内表面上的残留物或析出固体的井下清洁工具。 所述井下清洁工具包括具有孔和壁的工具主体,所述工具主体的壁中的至少一个入口,所述入口与所述孔流体连接,固体移除元件,与所述工具主体相连以释放所述工具主体的固体 壳体或衬套的内表面以及流体清洁器部分,其包括腔室,腔室内的过滤器,用于将固体与流体分离;以及与流体连通的泵,用于吸入具有释放的固体的流体通过入口进入 其中所述固体去除元件包括从所述工具主体突出的至少一个突出部分和布置在所述工具主体和所述突出部分之间的弹簧,并且其中所述至少一个入口可以邻近所述突出部分布置以吸引释放的固体 。 此外,本发明涉及一种用于去除壳体或衬套的内表面上的残留物或沉淀固体的井下系统和清洁方法。