• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SUMMARY The invention relates to a device for angular installation of a drill string (1) in a drill hall, comprising a first pipe body (10) provided with a bottom motor (5) and drill bit (2), a second pipe body (11) fixed to the drill string, the pipe bodies are connected with each other via a swivel joint (12). For effective directional control of the drill string, the first and second rudder bodies (10, 11) have end portions (15a, 11a) which are received in each other and connected by pin means (12) for pivoting about a first central point (A) of the longitudinal axes of the two fused rudder bodies. (zl z2), stable and maneuvering devices (30: 1-30: 4) which intersect at a second central point (B) and are enclosed by an annular space delimited by the inner body. With remote control means (40; 31: 1-31: 4) the stables and actuators (30: 1-30: 4) are adjustable and the respective center axes (10, 11) of the rudder bodies (10, 11) can be made to assume a certain angular layer in a first stable angle (a) in an xzplan; and a second stable angle (13) in a yz plane; around the first central point (A) by selectively changing the radially effective lengths of the stable and maneuvering devices (30: 1-30: 4).
    公开号:SE1350729A1
    申请号:SE1350729
    申请日:2013-06-14
    公开日:2014-12-15
    发明作者:Erik Lennartsson；Markus Lundborg
    申请人:Lkab Wassara Ab；
    IPC主号:
    专利说明:

    The present invention relates to a device for directional control of a drill string in a drilling rig when drilling with a submersible drilling rig according to the preamble of claim 1.
    The invention also relates to a submersible drilling rig according to the preamble of claim 9.
    Mining of rocks and maim In mines, both above and below ground, is done mainly by drilling and blasting. It has been found that the cost of breaking can be significantly reduced if one masters the technique of drilling long slides with star precision. Above all, far-reaching opportunities are sought to control a drilling string and damned also a front-mounted drilling tool or drill bit when drilling, ie. to achieve so-called directional drilling. In this way, the drill bit can be shaped to work its way through the rock along a pre-determined path that can extend linearly or posteriorly with a certain cracking. Improved possibilities to set and control the direction of the drill bit during ongoing drilling work can make drilling more efficient by making it possible to drill exclusively where necessary, for example to achieve increased efficiency by concentrating the drilling work only on those parts of the rock that are ore-bearing. It is also unfortunate that in a simple way it is possible, with a submersible drill, to set up and drill outgoing frail a color-coordinated reference coordinate system in ten dimensions and thus not only shape a drill bit to move along a fixed path without controlling the drill bit. said that with good precision it can reach a color-determined template in a three-dimensional room.
    For more direct directional control of a drill bit, it is far to edge to cause a crack or skew between the drill bit and a rear portion of a drill string. In order to achieve this skew, it is possible to use different types of conductor arrangements in sink drilling units which, with the aid of stable and maneuvering vehicles, can be rearranged in different angles.
    Energy to achieve this installation can be obtained in various ways, for example compressed air which is supplied via a continuous drill string or by utilizing the force which occurs when the drill rod rotates in relation to the half-shaft. When it comes to drilling with the aid of a submersible drilling rig which is supplied with a working fluid via a channel extending in the drill string, it has proved expedient to use a parade of said working fluid as an energy source for directional control of the drill bit.
    The object of the present invention is to provide a device which makes it possible in a simple and efficient manner to direct the direction of a drill string in a borehole when drilling with a submersible drilling rig and clarmed to form a drill bit to move along a predetermined path. Above all, the aim is to provide a device that is robust and operational, and due to its design, it is possible to steer a drill bit in different directions relative to the drill string with great precision. An object of the invention is also to provide a sink drilling assembly intended that no one as part of the device CADocuments and Settings leg Desktop draft wassara 130613 claims and requirements.docx 2 This object of the invention is solved by a device having the features and pitcher marks as claimed in claim 1 and a sink drilling assembly of the type stated in claim 9. Further advantages of the invention appear from the subclaims.
    The invention is described in more detail below with reference to a non-limiting exemplary embodiment shown in the accompanying drawings, in which; Fig. 1 shows a side view of a device according to the invention for guiding a drill string in a path when drilling with a submersible drilling unit, Fig. 2 shows a plan view, partly in section, of the device according to the invention, Fig. 3 shows a perspective view with ice-drawn parts Fig. 4 shows a perspective X-ray view of the device according to the invention, Fig. 4 shows a block diagram of a control system included in the device for controlling and controlling the working fluid of the device according to the invention. Fig. 6 shows a cross-sectional view of a torsional vane included in the device according to the invention, viewed along the line VI-VI in Fig. 4 and illustrating with arrows the forces which are applied to the conversion of the device and thus an anxiety in the drill string fixed drill bit in different Fig. 7a-7d show cross-sectional views through a drill hall, viewed along the line VII-VIH Fig. 2, illustrating s the control device when installing in different angles.
    Fig. 1 shows a part of a drill string 1 which is connected to a drilling rig located outside the borehole which is only shown schematically and an [anteriorly forwardly drilled tool or drill bit 2. The drill string 1 may on the edge comprise a plurality one after the other, at the spirits interconnected elements or sections of drills. Between the drill bit 2 and the said drill string 1 there is a general so-called sinking drill unit (Bottom Hole Assembly or BHA) which in its rear end is connected to the drill string 1 via a connecting piece Id provided after connecting piece 1c (see also Fig. 3).
    The submersible drill assembly 3 comprises a cylindrical machine housing 4 which houses a pressure medium actuated bottom motor 5, schematically illustrated by a dotted contour line, which as a unit drives a percussion device with a reciprocating piston member 6 intended for alternately axial engagement of the drill bit 2 which is via a drill bit 2. fixed the front end of the sank drilling rig 3. After pressurized working fluid 7 is led to the bottom motor 5 of the submersible drilling rig 3 via a central channel extending through the drill string 1. The flow of working fluid 7 through the central channel of the drill string 1 is illustrated, for simplicity, only with a flow spindle in Fig. 1. Harvested rock masses are transported away from the working area in front of the drill bit 2 and further baked, up and out of the formed drill tail CADocurnents and Settings leg Desktop ejection for wassara 130613 besk o requirements.docx 3 with the aid of the supplied working fluid, which is illustrated by the curved arrows 9 indicated in the bottom of the drill tail.
    Referring to Fig. 2, a guide device for directional control of the drill string according to the invention is shown in more detail. This guide device is intended to form an integral part of the submersible drilling assembly 3. The guide device generally comprises a front front pipe body and a rear second pipe body 11, the first pipe body 10 forming part of the above-mentioned machine housing 4 while the second pipe body 11 forms a guide housing to be aligned with the subsequent drill string 1. The two tubular bodies 10, 11 are gimbal connected via a universal type swivel joint 12 with which they are rotatably joined. Thanks to the universal joint, the tubular bodies 10, 11 can transmit torque between them and take on board the angular layers a in the xz plane and 6 in the yz plane, respectively, as illustrated in Figs. 4 and 5 by swinging around a first and a second axis x, y. it can be assumed that the angle a refers to the angle in the horizontal plane xz-plane (turning angle) and the angle p refers to the angle in a vertical plane yz-plane (pitch angle). It should be understood that in practice it is the first rudder body 10 which is caused to assume an angled direction, one direction, in relation to the position of the rear second rudder body 11 (guide housing) in the angled layer a, 6 and said drill string 1, the first rudder body 1 Longitudinal axis z1 forms stable angles to the longitudinal axis z2 of the second body 11 in the said plane. The long axes z1, z2 of the two rudder bodies 10, 11 converge in one and the same first point A in the central center of the torsional vane 12.
    As can be seen from Figures 2 and 3, a tubular coupling shaft 15 extends in the pivot joint 12 which extends in a direction behind the rear end 10a of the first rudder body 10 which jr water towards the pivot shaft 12. The tubular coupling shaft 15, the diameter of which is smaller to the diameter of the first rudder body 10, can suitably be designed as an integral continuous part of the end of the first rudder body or be fixedly connected to it, for example by welding. The tubular coupling shaft extends axially between the abutting duct portions 10a, 11a of the first and second rudder bodies 10, 11 facing the torsional vane 12 and is received via an opening 24 in a fluid-receiving manner in the cavities of the second body 11. Due to the fact that the coupling shaft 15 is hollow, a working fluid 7 can be transferred through the rotary shaft 12 from the drill string 1 to the bottom motor 5 in the first rudder body 10. Working fluid 7 can be transmitted via the central passage formed via the inner cavity of the coupling shaft 15. the passage of the coupling shaft 15 is illustrated by the flow arrow 7a in Fig. 2.
    As shown in Figs. 4 and 5, the coupling shaft 15 connects the first and second tubular bodies 10, 11 in the event of meeting spirits in such a way that the two tubular bodies can pivot about a first x and a second geometric axis y, respectively, each perpendicular to the coupling axis. 5 longitudinal axis zl, which is common to the center axis of the first tubular body 10. To enable this pivotability, the coupling shaft 15 is equipped with CADocuments and Settings leg Oesktop draft wassara 130613 besk o requirements.docx 4 tapping means 12 which are mounted on the peripheral outside of the coupling shaft 15. Nlarrinda tapping means 12 connects the mutually received duct portions 10a, 11a of the rudder bodies 10, 11 (see Fig. 2) so that the padded rudder bodies, with respect to their respective longitudinal axes z1, z2, can assume different angular layers, i.e. the angle a in the xz plane and the angle 13 yz plane, respectively, by being pivoted into a gimbal.
    As mentioned above, the tubular backwardly extending coupling shaft 15 forms an extension baked by the first tubular body 10 which simultaneously includes the bottom motor 5 to drive the percussion assembly percussion and hammer. The tubular coupling shaft 15 can be said to form a so-called "hammer desire", i.e. a kind of sea arm that extends through the center of the torsional vane 12. Coupling shaft 15 has been given such a length with respect to the position of the pivot joint 12 on the coupling shaft that a duct portion 15a of the rear arid of the coupling shaft is an initial layer concentrically occupied some distance into the cavities of the second tube body 11. According to the invention, this end portion 15a of the coupling shaft 15 has the function of partly functioning like said sea arm inside the second rudder body 11, and partly forming a central passage 7a for transferring working fluid between the rudder bodies 10, 11 and further up to the bottom motor 5.
    Referring to Fig. 3, the pivot joint 12 is shown more closely. The pivot joint 12 is designed as a divisible universal joint with mating pins and slides, possibly with intermediate teddy bear bearings where receiving surfaces of said pins and slides serve as bearing tracks. Distinctive feature of the universal joint is that it allows an open central passage 7a through the coupling shaft 15 so that the cavities in the two rudder bodies 10, 11 can communicate with each other and thus working fluid is led from the drill string 1 to the bottom rudder body 5 of the first rudder body 10.
    The pivot joint 12 comprises pin means having a driving part 18 which, like a joint fork with opposite hal 19, is formed in an immediate part of the front arid 11a of the second tube body 11, a driven part 21 formed as an annular yoke with two diametrically oriented axially radially extending shaft pins 22 which is mounted thereon on the coupling shaft 15 enclosing its periphery, and an intermediate gimbal ring 23 having a center opening 24 with two diametrically oriented Iran ring outgoing shaft pins 25 and two diametrically opposite hales 26 in the ring. The pair of gimbal ring 23 of diametrically opposed shaft journals and hales lie in a common plane which is perpendicular to the coupling shaft 15 Idngdaxel zl and the said shaft journals and halos are equally distributed but are mutually offset along the circumference by 90 °. In mounted position, all parts 18, 21, 23 entering the torsional vane 12 are integrated in and enclosed in an annular space delimited by the second ha of the second rudder body 11 and the end portion 15a of the coupling shaft 15.
    Fig. 6 illustrates the present invention in an initial layer with the aid of a coordinate system in which the specified x- and y-coordinate axes are assumed to be perpendicular to the CADocuments and Settings legOsktop 'draft of the bases and requirements. , z2, which can be assumed to extend into the plane of the paper in the drawing. In this starting position, when each of the formed angles a in the xz plane or in the yz plane between the rudder bodies 10, 11 has the amount = zero (a = 0; 13 = 0), the drill string 1 moves together with that of the rudder bodies 10 , 11 formed sink drilling rigs 3 essentially linear.
    As can be seen from Figures 4 and 5, the present device comprises a series of stables and actuators 30: 1-30: 4 which are radially operative in the annular space defined between the rear end portion 15a of the coupling shaft 15 and the inside or half of the tubular body 11 of the second tubular body 11 and the maneuvering means. 30: 1-30: 4, which suitably comprise hydraulically active piston-cylinder means, are distributed with equal pitch distribution along the on-circuit of the coupling shaft 15. With the aid of the operating means 30: 1-30: 4, the first rudder body 10 and thus the drill bit 2 can be inclined in any angular layer in the room in relation to the second rudder body 11 (the steering oil) and thus also the drill string. The stables and actuators 30: a-30: 4 are selectively and independently adjustable in a radially extended or radially retracted layer and are provided with a respective length sensor 31: 1-31: 4. The stables and actuators 30: 1-30: 4 can be operated in any suitable manner but are operated with advantage by utilizing a partial flood (not shown) of the fuel 35 in the form of working fluid 7 which is used for driving it in the sinker assembly 3. The propulsion in the form of a drill bit 2. Propellant in the form of an inlet such as a sub-chimney of the working fluid of the submersible drilling rig is denoted by 35a in Fig. 5. 35b denotes the return flow of the propellant.
    A drive system for utilizing a partial flow of said working fluid may comprise a hydraulic system, in which flow valves 31: 1-31: 4 are provided by means of which the stable and maneuvering devices 30: 1-30: 4 of the device can be selectively converted, ie. in the law where they are located are radially extended or retracted. Using the flow valves 31: 1-31: 4, the angle a in the xz plane can; 13 in the yz plane between the first and second rudder bodies 10, 11 of others between zero and a maximum amount, for example between a = 0 '; 13 = 00 and any arbitrary angle a and 13.
    An operator located at a distance from the control device can control and over / drive the drilling work with the help of a computer equipped with a monitor. Control and Monitoring signals can easily be transmitted between stable and man-made devices 30: 1-30: 4. With the aid of river valves 31: 1-31: 4, the stables and actuators can be rearranged in a radially extended or radially recessed layer in relation to each other. The control signals between the said remote-controlled computer and the stable and maneuvering devices can take place by means of a cable extending along the drill string 1 or wirelessly via radio link (not shown). Lamps are again stable and operating devices 30: 1-30: 4 of the type equipped with electronic position sensors 30a: 1-30a: 4, for example of the inductive type which senses the cylinder extension amount in the respective piston-cylinder arrangement which can be used for calculating the angle layer a and 13 between the front first rudder body 1 and CADocuments and Settings leg Desktop draft for wassara '130613 besk o requirements.docx 6 the second rudder body 2. Information about the two rudder bodies 10, 11 is embedded in the angle layers a and 6 in said plan , xz, and yz, respectively, it is possible to remotely control and monitor the direction of the drill bit 2 in the room. The rear end portion 15a of the coupling shaft 15 is used as a sea arm under the influence of said radially active stable and operating devices 30: 1-30: 4. A remote control unit 40 which can comprise the said computer transmits and receives in the form of electronic signals partly information from the operator, partly information respectively receives the position sensor 30a: 1-30a: 4 of the stable and maneuverable vehicles 30: 1-30: 4. The angular position of the control device at the angle α in the xz plane; The 6 yz plane can be determined by using a somewhat suitable three-dimensional mathematical calculation system which makes it possible to calculate the angles of the first and second body 10, 11 inboard, the respective planes. Since the distance between the feed points defined by the center of the pivot joint 12 denoted A in Fig. 4 and the central point at which the radially directed stables and actuators 30; 1-30: 4 intersect in a plane through the rear portion 15a of the coupling shaft 15 in a second central point B is constant and in principle can be said to form a vector of a certain length, a Cartesian coordinate system could be used to calculate the first and second rudder bodies 10, 11 inboard the angular layers a and 6, ie. how the device first rudder body 10 turns laterally and moves vertically in relation to the second rudder body 11 or the guide housing.
    Figs. 7a-7d illustrate how, by selectively varying the radially effective lengths of the stable and maneuverable 30: 1-30: 4, one can set the angle α in the xz plane; 6 in the yz plane between the center axes Z1, Z2 of the two rudder bodies 10, 11 in which heist angular layer in the space via the rotary vane 3.
    The invention is not limited to what is described above and that shown in the drawings, but can be changed and modified in a number of different ways within the scope of the inventive concept stated in the appended claims.
    CADocuments and Settings leg‘Desktop draft wassara i30613 visit a requirement.docx
    权利要求:
    Claims (9)
    [1]
    Device for angular installation of a drill string (1) in a drill hall, comprising a first pipe body (10) provided with a bottom motor (5) which drives a drill bit (2) first * with a working fluid (7) guided through the drill string, a second rudder body (11) which is fixed to one end of the drill string (1), the two rudder bodies (10, 11) being hingedly connected to each other via a pivot joint in such a way that torque can be transferred between the dead rudder bodies and that the nesting bodies are adjustable in the angular layers of each other by pivoting about an axis where the longitudinal axis (z1) of the first rudder body (10) forms a stable angle (a, 6) towards the longitudinal axis (z2) of the second rudder body (11) and one and the same point (A) in the pivot joint, may be due to the fact that the first and second rudder bodies (10, 11) have mutually accommodated duck portions (15a, 11a) in the pivot joint and are connected by means of pin means (12) for pivoting. around a first and second geometry, respectively so-called axis (x, y) which intersects at a first central point (A) of the longitudinal axes (z1, z2) of the joined rudder bodies, and that the device comprises a number of stables and actuators (30: 1-30: 4) which by the effect of a propellant (35) can be shortened and required that the stable and maneuvering devices (30: 1-30: 4) are evenly distributed along the circumference of an annular space delimited between the two mutually occupied duck portions (15a, 11a) and which stable and maneuvering devices are arranged to operate in a radial direction where they intersect at a second central point (B) of the longitudinal axes of the rudder bodies (z1, z2) of the joined rudder bodies, and that the device comprises remote control means (40; 31: 1-31: 4) with which the stables and actuators (30: 1-30: 4) are selectively and independently adjustable in a radially extended or radially recessed layer, the respective center axes of the two rudder bodies (10, 11) ( z1, z2) can be caused to assume an angular layer determined in advance in a first stable angle (a) in an xz plane; and a second stable angle (13) in a yz plane; around the first central point (A) by selectively changing the radially effective lengths of the stable and maneuvering devices (30: 1-30: 4) in the second central point (B).
    [2]
    Device according to claim 1, wherein the first and the second rudder body (10, 11) have duct portions (15a, 11a) which enclose each other in the longitudinal direction from the first central intersection point (A) of the pin means (12) to the second central intersection point ( B) for stable and manure vehicles (30: 1-30: 4).
    [3]
    Device according to any one of claims 1 - 2, wherein the end portion (10a) of one of the tubular body (10) has a tubular coupling shaft (15) formed as an axially directed CADocuments and Settings legMesktop draft of wassara 130613. Extending the rudder body, and the second rudder body (11) has a duck portion (11a) provided with an opening (24) into which the inner cavity of the rudder body (11) opens, which duct portion (15a) of the rudder coupling shaft (15) is received. in the said hall space via the opening.
    [4]
    Device according to claim 1, wherein the end part 15a of the coupling shaft (15) is used as a sea arm with a pivot point in the first central intersection point (A) under the influence of the radially active stable and maneuvering devices (30: 1-30: 4).
    [5]
    Device according to claim 3, wherein the tapping means (12) comprises a driving part (18) which, like a hinge fork with opposite hal (19), is formed in an immediate part of the end portion (11a) of the second rudder body (11), a driven part ( 21) formed as an annular yoke with two diametrically oriented axially radially extending shaft pins (22) which yoke is mounted on the outside or periphery of the coupling shaft (15), and an intermediate gimbal ring (23) having a center opening (24) with two diametrically oriented axles the shaft has shaft pins (25) and two diametrically opposite halts (26) in the universal joint ring.
    [6]
    Device according to any one of claims 3 -4, wherein in the interconnected part of the rudder bodies (10, 11) all parts (18, 21, 23) entering the pin means (12) are integrated in and enclosed by an annular space delimited by the end portion (11a) of the second rudder body (11) and the end portion (15a) of the coupling shaft (15).
    [7]
    Device according to any one of claims 1 - 5, wherein the usual stable and operating devices (30: 1-30: 4) are provided with a length sensor (31: 1-31: 4) and are selectively and independently adjustable in a in relation to the longitudinal axes (z1, z2) of the rudder bodies (10, 11) radially extended or retracted by the action of the remote control means (40).
    [8]
    Device according to any one of claims 1 to 6, comprising means (40; 30: 1-30: 4; 31: 1-31: 4) arranged to remotely sens the first stable angle (a) in an xz plane and to sens a second stable angle (p) in a yz plane between the longitudinal axes (z1, z2) of the rudder bodies, each of said stable angles being measured starting from the relative angular law of the longitudinal axes (z1, z2) about the first central point (A).
    [9]
    A sink drill assembly comprising a first rudder body (10) provided with a bottom motor (5) and a drill bit (2) attached to a chuck, a second rudder body (11), a pivot joint (12) which is coated between the rudder bodies and allows torque to be transferred and CADocuments and Settings leg Desktop draft wassara 130613 besk o requirements.docx 9 the rudder bodies to be stalled In the angular law by pivoting about an axis where the long axis (zl) of the first rudder body (10) forms a stable angle (a, 13) towards it The longitudinal axis (z2) of the second rudder body (11) and the longitudinal axes of the two rudder bodies converge at one and the same point (A) in the articulated connection, except that the first rudder body (10) has a duct portion (10a) provided with a tubular coupling shaft (15) formed as an axially directed extension of the rudder body, that the second rudder body (11) has a duct portion (11a) provided with an opening (24) via which a portion (15a) of the coupling shaft is received extending a distance inwards. in the other row the inner cavity of the body, and that the sinker assembly comprises pin means (12) for pivoting about a first and second geometric axis (x, y), respectively, which intersect at a first central point (A) of the '5's of each other received by the rudder bodies (15a); 11) long axles (z1, z2), a number of stable and maneuvering devices (30: 1-30: 4) which by the action of a fuel (35) can be shortened and extended and which stable and maneuverable vehicles are evenly distributed along the circumference of a annular space delimited between the interlocking tubular bodies (15a, 11a) and which stables and maneuvers are arranged to act in a radial direction where they intersect at a second central point (B) of the longitudinal axes of the two interconnected tubular bodies ( z1, z2), wherein the respective center axes (z1, z2) of the two rudder bodies (15a, 11) can be caused to assume an angular layer determined in advance in a first stable angle (a) in an xz plane; and a second stall angle (p) in a yz plane; around the first central point (A) by selectively changing the radially effective lengths of the stables and actuators (30: 1-30: 4) in the second central point (B). CADocuments and Settings leg Desktop draft for wassara 130613 besk o requirements.docx
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    引用文献:
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    US20030127252A1|2001-12-19|2003-07-10|Geoff Downton|Motor Driven Hybrid Rotary Steerable System|
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    US11193331B2|2019-06-12|2021-12-07|Baker Hughes Oilfield Operations Llc|Self initiating bend motor for coil tubing drilling|
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    EP14811300.4A| EP3008274A4|2013-06-14|2014-06-03|Arrangement and down-the-hole drilling equipment for angular setting of a drill string|
    PCT/SE2014/050672| WO2014200416A1|2013-06-14|2014-06-03|Arrangement and down-the-hole drilling equipment for angular setting of a drill string|
    US14/897,977| US9982486B2|2013-06-14|2014-06-03|Arrangement and down-the-hole drilling equipment for angular setting of a drill string|
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