EP0125993B1 - Appareil de centrage d'un outil dans un puits tubé en particulier pour puits dévié - Google Patents

Appareil de centrage d'un outil dans un puits tubé en particulier pour puits dévié Download PDF

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Publication number
EP0125993B1
EP0125993B1 EP84400947A EP84400947A EP0125993B1 EP 0125993 B1 EP0125993 B1 EP 0125993B1 EP 84400947 A EP84400947 A EP 84400947A EP 84400947 A EP84400947 A EP 84400947A EP 0125993 B1 EP0125993 B1 EP 0125993B1
Authority
EP
European Patent Office
Prior art keywords
wheel
central bar
slides
tool
carrying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84400947A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0125993A1 (fr
Inventor
Daniel Francis Vannier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger NV
Services Petroliers Schlumberger SA
Schlumberger Ltd USA
Original Assignee
Schlumberger NV
Societe de Prospection Electrique Schlumberger SA
Schlumberger Ltd USA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger NV, Societe de Prospection Electrique Schlumberger SA, Schlumberger Ltd USA filed Critical Schlumberger NV
Publication of EP0125993A1 publication Critical patent/EP0125993A1/fr
Application granted granted Critical
Publication of EP0125993B1 publication Critical patent/EP0125993B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs

Definitions

  • the invention relates to devices for centering a tool in a cased well, in particular for a deviated well.
  • 3b of this document shows a centering device which comprises a central bar capable of being integrated into the chain for lowering the tool into the casing, two movable slides with limited sliding on this central bar, a series of radial structures carries -galet, of general triangular geometry, defined by arms articulated on the two slides, a series of rollers each mounted free in rotation on one of the radial structures, so that its periphery projects radially outwards, and elastic return means acting to urge the rollers radially outwards.
  • this centralizer is not without drawbacks.
  • the present invention solves the technical problems encountered with this prior art roller centering device.
  • a first object of the present invention is to provide a centering device which has an enlarged roller diameter, while respecting the same constraints of overall diameter in the retracted position.
  • Another object of the present invention is to provide a device whose radial bearing force on the casing is substantially constant over a wide range of casing diameter.
  • Yet another object of the present invention is to provide a device which has, in all circumstances, an exterior surface without roughness, thus avoiding that shocks during its descent do not quickly put it out of service.
  • each roller is mounted to rotate in an inclined plane with respect to the radial plane of the roller-bearing structure which supports it, and the central bar is hollowed out, so as to partially accommodate the rollers when said roller support structures are retracted to the maximum on the central bar.
  • each roller-bearing structure comprises a yoke in the general shape of a U, on the branches of which the external ends of the arms are articulated, articulated moreover on the two slides, while the roller is mounted on the bottom of the U, on the internal side thereof, so that the external periphery of the roller projects slightly outside the associated roller support structure, substantially in the radiated plane thereof; for their part, the bottoms of the U of the different yokes are offset at the periphery in the same direction with respect to the radial plane of each roller-holder structure, when one rotates around the central bar.
  • the elastic return means comprise on the one hand, two compression springs, which bear between the sliders and shoulders of the central bar which are located on either side of the two sliders, respectively, in order to urge these two sliders one towards the other, and, on the other hand, in parallel on the arms, between the slide and the bearing carrier concerned, a curved leaf spring, with concavity turned inward.
  • the yokes are shaped externally to define together a substantially cylindrical periphery, when the roller-bearing structures are retracted to the maximum on the central bar.
  • the angle of inclination of the rollers relative to the radial plane concerned is of the order of 10 °.
  • the symbol T generally designates a casing, inserted in a deviated well which successively meets various formations of the subsoil. Inside the casing is placed a chain for lowering a tool, consisting of successive elements 1 and 2, pivotally connected to one another. An element 3, provided at its two ends with seals 3A and 3B, allows angular movement. The seal 3B is connected to a first centering device 4, followed by a tool 5, then a second centering device 6, and a new tool 7.
  • the tool 5 is for example the device for measuring the transverse dimensions of a hole described in French Patent Application No. 81 24021, published under No. 2,518,638, already cited.
  • the tool 7 then includes a reference sensor, intended to measure the speed of propagation of the acoustic waves in the medium which fills the casing.
  • FIG. 1 the schematic representation given for the centering devices 4 and 6 corresponds to the centralizer described in the article reference SPE 6818, already cited.
  • Figure 2 schematically shows a centering device or centralizer according to the present invention.
  • a central bar 10 is provided at its two ends with threads (not shown) for fixing two parts 12 and 13 forming opposite shoulders. These parts 12 and 13 will also serve to ensure the connection of the central bar in the descent chain, on the one hand, on the side of the universal joint 3B, on the other hand, on the side of a tool, for example ( figure 1). It will also be noted in FIG. 1 that two centering devices are generally necessary.
  • This comprises firstly a first pair of arms 71 and 72, which are pivotally articulated on the slide 20, and a second pair of arms 73 and 74, similarly articulated on the slide 30.
  • the arms 71 and 72 are pivotally articulated on one side of a roller carrier yoke 50.
  • the other two arms 73 and 74 are similarly pivoted on the other side of the yoke 50.
  • Both pivot axes provided in the yoke are parallel. These axes appear at 67 and 68 in FIG. 8.
  • one of the sides of the yoke 50 is fixed to a curved leaf spring 41, the other end of which is guided in axial sliding in the slide 20. It is the same for the other side with curved leaf spring 42.
  • Each yoke such as 50 supports a roller, which is mounted for rotation on it.
  • the elastic return means are completed by two springs 17 and 19 bearing between the extreme stops 12 and 13 and the slides 20 and 30.
  • FIGS. 3 to 7, illustrate, in more detail, the structure of one of the sliders, supposed to be the slider 20.
  • the slider 20 is provided with three protuberances arranged at the periphery at 120 ° one from the other, and which will each serve to define the pivot axis of a pair of arms such as 71 and 72.
  • the projection or protuberance 25 which is radially sized large enough to allow the establishment of a bore 27 serving as a pivot axis for the two bars 71 and 72.
  • an intermediate recess 26 is provided to allow the housing of the leaf springs such as 41 in the fully position retracted from the centering device.
  • the other pivot axes 27A and 27B we note equal ment, in Figure 3, the other pivot axes 27A and 27B.
  • the slide 20 is also provided at its left end with a tip 21 internally forming a stop 28 for the spring 17.
  • This tip is provided, with the same planes of symmetry as the protrusions 25, with longitudinal recesses distributed at 120 ° one from the other ( Figures 3, 4, 5 and 6).
  • the recess 22 is provided, which extends over the entire length of the end piece, thus allowing the end of the leaf spring 41 to be housed when the device is fully retracted.
  • the recess 22 is provided with lateral grooves 23.
  • the end piece 21 is provided with a housing 25 designed to receive a pin capable of immobilizing the slide pivotally relative to the central bar, by cooperating with a groove homologous to the bar. central (if such immobilization is desired).
  • a pin capable of immobilizing the slide pivotally relative to the central bar, by cooperating with a groove homologous to the bar. central (if such immobilization is desired).
  • an orifice 29 which allows the passage of the fluid contained in the casing towards the inside of the slide, in order to equalize the pressures.
  • FIGS 8, 9 and 11 show in more detail the arrangement made on the side of one of the yokes, such as 50.
  • the axes 67 and 68 serve as other pivot points for the pairs of arms 71 and 72 on the one hand. 73 and 74 on the other hand.
  • This fixing is carried out in the two lateral parts 51 and 52 of the U-shaped yoke 50.
  • These lateral parts are extended, in the radial plane of the roller-bearing structure concerned, by two plates, one of which 61 appears well in FIG. 8.
  • the plate 61 is provided with a protuberance 62 which serves as a fulcrum at the end of the leaf spring 42.
  • the latter is moreover rigidly fixed to the yoke 50 by brazings 64 and 63.
  • the centralizing device of the prior art has radial structures of triangular geometry.
  • the structure according to the invention is however only roughly triangular.
  • Those skilled in the art will indeed understand that the articulation points 67 and 68 of the arms on the yoke are quite distant from each other, which allows, in combination with the role played by the leaf springs 41 and 42 , a much more flexible suspension of the yoke 50 and the roller 80 which it carries (this roller is not shown in FIGS. 8, 9 and 11).
  • Figures 8, 9 and 11 also show a very important feature of the invention.
  • the roller carrier yoke 50 houses the roller on the bottom side 53 of its U, more precisely on the side of the inner face 56 thereof, when we observe things from the center of the structure.
  • the mounting in lateral offset of the yoke 50 is accompanied by an inclination of its inner face 56 and therefore of the plane of the roller, relative to the radial plane defined by the roller-bearing structure concerned.
  • the angle of inclination in question is of the order of 10 °.
  • each roller such as 80 projects slightly outside the associated roller support structure, and inside the U defined by each yoke 50, that is to say - say substantially by the radial plane of the roller-bearing structure concerned.
  • the bottoms 53 of the U of the different yokes such as 50 are offset on the periphery in the same direction relative to the general direction defined by the leaf springs 41 and 42 (that is to say the radial plane of the structure roller holder), when turning around the central bar 10.
  • the external surfaces 54 of the yokes 50 are shaped so as to define together a substantially cylindrical periphery, when the roller-bearing structures are retracted to the maximum on the central bar.
  • the outer contour 54 of the yoke is curved in such a way that it approaches the axis of the centering device when one moves away from the radial plane of the associated roller support structure.
  • the yoke 50 is therefore placed in lateral offset, in a slightly closed position towards the inside.
  • FIG. 10 is a cross section of the centering device according to the invention, in its fully retracted position. This figure also makes it possible to better understand the mounting of each roller on the associated yoke.
  • Figure 10 similarly shows the substantially cylindrical peripheral contour in the retracted position.
  • the central bar 10 is internally bored at 15, to let conductors pass to a tool located downstream.
  • the inner face 56 of the yoke 50 is provided with an annular central shoulder note 59. This supports a pad 81. And it is on the pad 81 that the actual roller 80. Note the hollow shape of the roller, which allows it to be held by a flange 83, integral with a rod 82 which engages in the bore of the yoke 50, where it is fixed by a key 54.
  • Such an assembly allows easy rolling of the roller, while helping to minimize its size, and thereby that of the entire centralizing device in the fully retracted position.
  • the periphery of the roller 80 is chosen in one suitable material to allow it a long service life under the harsh conditions encountered inside the casings.
  • the sliders come into contact, or almost in contact, with their respective stops 12 and 13 when the roller support structures are in their fully retracted position. In the other positions, the two slides are free to move together on the axis defined by the central bar 10, against the springs 17 and 19.
  • the angle of the inner arms such as 71 and 72 on the axis of the central bar is of the order of 30 °.
  • each radial roller carrier structure namely its bars, the geometry of the curved leaf springs 41 and 42, as well as the characteristics of the springs 17 and 19 taking account of their stops.
  • the arrangement of the springs 17 and 19, according to the present invention makes it possible to obtain at the level of the rollers a radial force which increases with the diameter of the casing.
  • the curved leaf springs such as 41 and 42 provide a radial force which, on the contrary, decreases with the diameter.
  • a variant of the invention consists, on the contrary, in leaving these slides 20 and 30 free to pivot on the central bar. It has in fact been observed that it suffices to slightly round off the edges of the flats 11, 11A and 11B formed on the central bar so that the rollers can come to fit themselves in the fully folded position, even if the position of the two slides at the time of approach does not exactly correspond to the desired geometry. In general, it is possible to machine the central bar to facilitate the insertion of the rollers on the recesses which it carries, when the roller-bearing structures approach their fully retracted position.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Looms (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Paper (AREA)
  • Jigs For Machine Tools (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
EP84400947A 1983-05-10 1984-05-09 Appareil de centrage d'un outil dans un puits tubé en particulier pour puits dévié Expired EP0125993B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8307831 1983-05-10
FR838307831A FR2545872B1 (fr) 1983-05-10 1983-05-10 Appareil de centrage d'un outil dans un puits tube en particulier pour puits devie

Publications (2)

Publication Number Publication Date
EP0125993A1 EP0125993A1 (fr) 1984-11-21
EP0125993B1 true EP0125993B1 (fr) 1987-07-29

Family

ID=9288767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400947A Expired EP0125993B1 (fr) 1983-05-10 1984-05-09 Appareil de centrage d'un outil dans un puits tubé en particulier pour puits dévié

Country Status (12)

Country Link
US (1) US4595055A (enrdf_load_stackoverflow)
EP (1) EP0125993B1 (enrdf_load_stackoverflow)
JP (1) JPS59206592A (enrdf_load_stackoverflow)
AU (1) AU2781684A (enrdf_load_stackoverflow)
DE (1) DE3465127D1 (enrdf_load_stackoverflow)
DK (1) DK233284A (enrdf_load_stackoverflow)
FR (1) FR2545872B1 (enrdf_load_stackoverflow)
GR (1) GR82092B (enrdf_load_stackoverflow)
MA (1) MA20114A1 (enrdf_load_stackoverflow)
NO (1) NO841824L (enrdf_load_stackoverflow)
NZ (1) NZ208112A (enrdf_load_stackoverflow)
OA (1) OA07770A (enrdf_load_stackoverflow)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569476B1 (fr) * 1984-08-24 1987-01-09 Schlumberger Prospection Procede et dispositif pour evaluer la qualite du ciment entourant le tubage d'un puits
GB8518808D0 (en) * 1985-07-25 1985-08-29 Vetco Uk Ltd C E Cutting drill collar
US4823125A (en) * 1987-06-30 1989-04-18 Develco, Inc. Method and apparatus for stabilizing a communication sensor in a borehole
FR2638612B1 (fr) * 1988-11-08 1992-07-17 Alpes Boyauderie Procede de calibrage, de mesure de la longueur et de conditionnement de troncons de boyaux utilises en charcuterie et dispositif pour sa mise en oeuvre
US5005642A (en) * 1989-10-30 1991-04-09 Shell Oil Company Logging tool centralizer
FR2697578B1 (fr) * 1992-11-05 1995-02-17 Schlumberger Services Petrol Centreur pour sondage.
FR2710987B1 (fr) * 1993-10-06 1996-01-05 Schlumberger Services Petrol Dispositif de diagraphie combiné.
EP0703349B1 (en) * 1994-09-23 1999-03-10 Schlumberger Limited Method and apparatus for logging non-circular boreholes
US5730218A (en) * 1996-01-31 1998-03-24 Fmc Corporation Tool protection guide with energy absorbing bumper
US20080156495A1 (en) * 2006-12-29 2008-07-03 Schlumberger Technology Corporation Method of using radial thrust elements to re-enter a previously-installed tubular in a lateral
US8225869B2 (en) * 2008-11-07 2012-07-24 Ge Oil & Gas Logging Services, Inc. Locator tool and methods of use
US20110222368A1 (en) * 2010-03-10 2011-09-15 VCable, LLC Detecting Seismic Data in a Wellbore
US8630817B2 (en) * 2011-03-15 2014-01-14 Siemens Energy, Inc. Self centering bore measurement unit
CN108104751B (zh) 2012-11-16 2021-02-02 派特马克Ip有限公司 传感器输送装置和引导装置
US9341032B2 (en) 2014-06-18 2016-05-17 Portable Composite Structures, Inc. Centralizer with collaborative spring force
CN105783655B (zh) * 2014-12-19 2018-09-14 中国航空工业集团公司沈阳发动机设计研究所 一种轴对称喷管喉道直径测量工具
WO2016204796A1 (en) * 2015-06-18 2016-12-22 Portable Composite Structures, Inc. Centralizer with collaborative spring force
US10240440B2 (en) * 2015-10-23 2019-03-26 Don Umphries Total control perforator and system
US10358907B2 (en) * 2017-04-17 2019-07-23 Schlumberger Technology Corporation Self retracting wall contact well logging sensor
CN107816928B (zh) * 2017-09-20 2020-02-14 江苏理工学院 一种深孔直径及深度检测工具
CN109374030B (zh) * 2018-10-25 2024-05-24 南京工程学院 一种用于多台阶深孔检测的自动牵引装置
GB2588476B (en) * 2019-05-04 2022-02-16 Openfield A production logging tool and downhole fluid analysis probe deployment method
US11976521B2 (en) * 2019-08-01 2024-05-07 Chevron U.S.A. Inc. High speed rotor dynamics centralizer
CN112012673B (zh) * 2020-10-22 2021-01-15 胜利油田固邦石油装备有限责任公司 一种定向井套管扶正器
US20230175358A1 (en) * 2021-12-03 2023-06-08 Saudi Arabian Oil Company Method and apparatus for setting and reinforcing dropped fabric nested casing
CN115628047B (zh) * 2022-09-27 2024-08-27 杭州瑞利声电技术有限公司 一种超大井眼适用的ccl磁定位短节
US12270259B2 (en) 2023-05-18 2025-04-08 Georgia Tech Research Corporation Snake-skin-inspired in-hole bow spring centralizer

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Also Published As

Publication number Publication date
DE3465127D1 (en) 1987-09-03
FR2545872A1 (fr) 1984-11-16
FR2545872B1 (fr) 1985-07-26
GR82092B (enrdf_load_stackoverflow) 1984-12-13
DK233284D0 (da) 1984-05-10
US4595055A (en) 1986-06-17
AU2781684A (en) 1984-11-15
EP0125993A1 (fr) 1984-11-21
JPS59206592A (ja) 1984-11-22
OA07770A (fr) 1985-08-30
MA20114A1 (fr) 1984-12-31
DK233284A (da) 1984-11-11
NZ208112A (en) 1987-02-20
NO841824L (no) 1984-11-12

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