EP0290338B1 - Dispositif de connexion pour le raccordement mécanique et électrique d'un câble multi-conducteurs à une sonde de puits - Google Patents

Dispositif de connexion pour le raccordement mécanique et électrique d'un câble multi-conducteurs à une sonde de puits Download PDF

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Publication number
EP0290338B1
EP0290338B1 EP88401077A EP88401077A EP0290338B1 EP 0290338 B1 EP0290338 B1 EP 0290338B1 EP 88401077 A EP88401077 A EP 88401077A EP 88401077 A EP88401077 A EP 88401077A EP 0290338 B1 EP0290338 B1 EP 0290338B1
Authority
EP
European Patent Office
Prior art keywords
probe
cable
annular sleeve
well
separation disc
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 - Lifetime
Application number
EP88401077A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0290338A1 (fr
Inventor
Jean-Claude Le Dall
Jean-Claude Marchand
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.)
IFP Energies Nouvelles IFPEN
Technip Geoproduction SA
Original Assignee
IFP Energies Nouvelles IFPEN
Technip Geoproduction SA
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 IFP Energies Nouvelles IFPEN, Technip Geoproduction SA filed Critical IFP Energies Nouvelles IFPEN
Publication of EP0290338A1 publication Critical patent/EP0290338A1/fr
Application granted granted Critical
Publication of EP0290338B1 publication Critical patent/EP0290338B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water

Definitions

  • the invention relates to a connection device allowing the mechanical and electrical connection of well probes to an electrically-carrying cable.
  • the measurements in the boreholes are carried out by means of sensors generally contained in one or more probes lowered, from a surface installation, at the end of a so-called electro-carrying cable capable of supporting the weight of the probes and consisting of a plurality of electrical conductors. At least one of the probes has anchoring arms actuated by jacks.
  • the liquid necessary for the operation of the jacks is produced by a hydraulic system generally driven by an electric motor supplied from a surface installation by means of electrical conductors of the cable.
  • the operation of the anchoring arms making it possible to immobilize the probe (or the probes) at a determined depth in the well or borehole, is controlled by means of solenoid valves connected by one or more conductors to the surface installation.
  • Other electrical conductors are used to connect to a recording laboratory various sensors contained in the probes and in particular the various sensors used to determine the characteristics of the formations of the subsoil surrounding the borehole.
  • the different signals from the different sensors are collected by a data acquisition device designed to multiplex, digitize and adapt these signals before transmitting them via one or more cable lines to the surface seismic laboratory.
  • Data acquisition is coordinated from the seismic laboratory, which sends control and synchronization signals to the receiving device in the well.
  • the connection of each sensor arranged in a satellite probe with the acquisition device generally arranged in the main probe, is carried out by a specific conductor.
  • connection of the cables to the ends of the probes is generally carried out by means of a sealed crossing element constituted by a thick partition in the form of a disc, made of an insulating material crossed by metal rods emerging on either side of the partition.
  • the rods are welded or crimped on one side to the conductors of the cable and on the opposite side to conductors inside the probe.
  • the connection area is delimited and isolated on either side of the partition by means of a sleeve made up of two half-shells close to each other so as to enclose the cable and the end of the probe body, and attached to each other.
  • Seals are placed between the two half-shells to isolate this cavity and an insulating substance is injected there.
  • a multi-pin electrical connector is also used which is placed in the cavity on one side of the partition. The realization of each interconnection is long and difficult because of this. In addition, the electrical insulation is difficult to maintain when the external hydrostatic pressure becomes very high and this because of the method of confinement of the connectors by half-shells, which resists poorly the ingress of water.
  • connection device making it possible to connect quickly and without error to a multi-conductor cable an intervention assembly for a well or borehole comprising at least one well probe.
  • the connection device comprises electrical connection means allowing the connection of the various electrical conductors in the probe and of the conductors of the multi-conductor cable, these electrical connection means comprising a separation disc provided on the side of the probe.
  • the separating disc being provided with sealed bushings for a set of male pins which are adapted, on the side thereof, to be inserted on a set of hollow rods electrically connected to the conductors of the cable and, on the opposite side, on female plugs of the electrical connector, which are electrically connected to the conductors inside the probe
  • the device also comprising mechanical connection means comprising an annular sleeve provided at a first end with an associated tip to first means for retaining the cable adapted to receive, at its opposite end, the terminal part of the body of the probe, which comprises recesses which can contain the separation disc and the female connector
  • the mechanical connection means further comprising polarizing means and means for securing the annular sleeve to the end part of the body of the well probe, these means allowing, by bringing the annular sleeve and the end part together, to make the correct electrical connection between the separation disc and the female electrical connector and to insulate
  • connection device is characterized in that it comprises at each probe head a bevel blocking piece and screws for applying said piece against the multi-conductor cable which screws are chosen to resist within well limits determined to tear off the multi-conductor cable, and sealing means for applying the sheath against the outer wall of the end piece.
  • the device according to the invention allows the recovery of at least part of the equipment lowered into the well when a part of the latter becomes trapped as a result descent and / or ascent maneuvers.
  • This arrangement is particularly useful when the intervention assembly comprises several probes suspended one below the other by elements of multi-conductor cables.
  • the electrical and mechanical connection means as defined above are used to connect a cable element to the base of a probe, these means being provided with second cable retaining means comprising a cylindrical part provided with cavities and needle screws adapted to engage in said cavities and apply said part against the multi-conductor cable, and sealing means for applying the sheath of the cable element against the outer wall of the end piece.
  • the device makes it possible to connect a multi-conductor cable 1 to the end of a well probe body 2.
  • the end of the body 2 is tubular and has a first internal bore 3 provided with a thread extended by a second bore 4 of section smaller than that of the first and of a third bore 5 of section smaller than that of the second.
  • the tubular wall of the body is crossed by three radial housings at 120 ° from each other for three polarizing pins 6.
  • the wall of the body is crossing of three radial housings also at 120 ° from each other for three other keying pins 7.
  • the pins 6 and 7 are provided with seals 8 and their respective lengths are chosen so that their ends protrude beyond the inner wall 9 of body 2.
  • the device comprises a female electrical connector 10 of section adapted to that of the third cavity 5 and of length greater than the latter.
  • the connector 10 is provided with three longitudinal grooves 11 of width adapted to that of the keying pins 6 and also arranged at 120 ° from each other. It includes (Fig. 3) a certain number of female sockets P.
  • a ring 12 of section smaller than that of the second cavity 4 is fixed around the connector 10.
  • the device also includes a separation disc 13 whose external section is adapted to that of the second cavity, this disc having on one side, a tubular extension 14 provided with three longitudinal grooves 15 of width adapted to the diameter of the keying pins 7 and arranged at 120 ° from one another.
  • the inner section of the extension 14 is adapted to the outer section of the female connector 10.
  • a seal 16 is arranged in an annular groove at the periphery of the disc.
  • the disc On the side opposite to the tubular extension 11, the disc is provided with a circular shoulder 17 comprising a longitudinal groove 18. Passages are made through the disc 13, and male pins 19 provided with seals are inserted therein and the cross right through. The length of the pins is greater than the thickness of the disc. Their number and arrangement are such that, on the side of the tubular extension, the male pins engage in the various sockets of the female connector 10, when the longitudinal grooves 11 and 15 are in the extension of each other.
  • the device also includes an annular sleeve 20 whose internal section, on the side of a first end, is adapted to that of the circular shoulder 17 of the disc 13.
  • the sleeve comprises a flange 21.
  • a shim keying 22 of width adapted to that of the axial groove 18, is fixed to the inner wall of the sleeve in the vicinity of its first end.
  • a needle screw 23 radially passing through the flange makes it possible to immobilize the disc 13 in translation relative to the sleeve 20.
  • a nut 24 can slide along the sleeve. It is provided with a tubular extension 25 of external diameter adapted to that of the first internal bore 3 of the body 2, and externally threaded.
  • the outer wall of the sleeve 20 is threaded over part of its length.
  • a lock nut 26 in the form of a ring and the internal wall of which is threaded, can be screwed onto the external thread of the sleeve 20.
  • the internal cavity 27 of the sleeve communicates with the outside via two radial orifices closed by two threaded plugs 28.
  • the sleeve has an end piece 29 for connection to the cable made up of two trunks of cones 30, 31 connected to each other by a cylindrical part 32.
  • An axial opening 33 is made in the axis of the end piece.
  • the cable comprises a bundle of lines 34 inside an outer frame in the form of a braid 35.
  • the assembly is coated in an elastomer sealing sheath 36.
  • the end portion 31 forming a bevel is introduced under the sheath and a sealing ring 37 is clamped from above at the level of the cylindrical part 32.
  • a bevelled tubular piece 38 provided with an opening of diameter adapted to that of the sheath, is disposed in the axial opening 33 of the end piece. It is pressed against the braid by driving three screws or clamping pins 39 into three threaded openings 40 formed radially in the end piece at its cylindrical part 32.
  • these three pins 39 are chosen so that they give way if the axial pulls which are exerted on the cable, exceed a determined value.
  • This security system is used at the head of the probe if it is unique or between each probe head and the portion of cable which connects it to the probe arranged above, in the case where one descends into the well a train of several interconnected probes.
  • the cable portion is connected at its end (FIG. 2) to a similar end piece 29 of another probe which, when in operation, is placed above it.
  • the connection method is identical except that the beveled part 38 is replaced by a cylindrical part 41 and the clamping pins 39 by needle screws 42 coming to engage in cavities formed in the part 40.
  • the resistance to tearing obtained is much higher than that offered by the bevel and the pins. As a result, possible ruptures always occur at the upper end of each probe.
  • rods 43 On the different male pins 19, on the side of the disc 13 opposite to the female connector 10, are plugged in rods 43. To these rods are welded the ends of the different lines 34 of the cable 1. Through the openings, a substance is introduced liquid or pasty dielectric to electrically isolate the rods 43 from moisture which could penetrate inside the sleeve 20.
  • the different conductors L leaving the body 2 are electrically connected to the different sockets of the female connector 10.
  • the outer sheath 36 of the cable to be connected is shortened as well as its braid 35, so as to release a length of the upper inner cable to the length of the sleeve.
  • the cable to be connected is engaged in the opening 33 of the end piece, its braid 35 is blocked by the bevelled piece 38 and the clamping pins 39 , then the outer sheath is passed over the cylindrical part of the end piece 29 and tightened around by the ring 37.
  • the different lines 34 of the cable are then electrically connected to the rods 43.
  • the two plugs 28 are removed from the sleeve and an insulating fluid is injected such as a silicone paste, until the interior cavity 27 is completely filled and then they are recapped.
  • an insulating fluid is injected such as a silicone paste, until the interior cavity 27 is completely filled and then they are recapped.
  • the electrical connection is therefore established quickly and without risk of error.
  • the connection being made by means of a cylindrical sleeve screwed onto the end of the body, it is therefore easy to obtain good mechanical rigidity and good electrical insulation of the interconnected lines.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Cable Accessories (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Multi-Conductor Connections (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Communication Cables (AREA)
EP88401077A 1987-05-05 1988-05-04 Dispositif de connexion pour le raccordement mécanique et électrique d'un câble multi-conducteurs à une sonde de puits Expired - Lifetime EP0290338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706360 1987-05-05
FR8706360A FR2615044B1 (fr) 1987-05-05 1987-05-05 Dispositif de connexion pour le raccordement mecanique et electrique d'un cable multiconducteurs a une sonde de puits

Publications (2)

Publication Number Publication Date
EP0290338A1 EP0290338A1 (fr) 1988-11-09
EP0290338B1 true EP0290338B1 (fr) 1992-08-12

Family

ID=9350817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401077A Expired - Lifetime EP0290338B1 (fr) 1987-05-05 1988-05-04 Dispositif de connexion pour le raccordement mécanique et électrique d'un câble multi-conducteurs à une sonde de puits

Country Status (10)

Country Link
US (1) US4874328A (enrdf_load_stackoverflow)
EP (1) EP0290338B1 (enrdf_load_stackoverflow)
JP (1) JP2678616B2 (enrdf_load_stackoverflow)
CN (1) CN1011842B (enrdf_load_stackoverflow)
CA (1) CA1287671C (enrdf_load_stackoverflow)
DE (1) DE3873598T2 (enrdf_load_stackoverflow)
FR (1) FR2615044B1 (enrdf_load_stackoverflow)
IN (1) IN170415B (enrdf_load_stackoverflow)
MX (1) MX169766B (enrdf_load_stackoverflow)
NO (1) NO172779C (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685139B1 (fr) * 1991-12-11 1994-05-20 Institut Francais Petrole Procede et dispositif pour l'interconnexion electrique d'appareils tels que des outils de puits.
FR2741108B1 (fr) 1995-11-10 1998-01-02 Inst Francais Du Petrole Dispositif d'exploration d'une formation souterraine traversee par un puits horizontal comportant plusieurs sondes ancrables
EP0902505A3 (en) * 1997-09-09 2000-11-29 Hydro-Bond Engineering Limited Sealed electrical and/or optical connector
WO2003102455A1 (en) * 2002-05-31 2003-12-11 Technip France Sa Seal assembly
AU2003901623A0 (en) * 2003-03-28 2003-05-01 Head Electrical International Pty Ltd An electrical connection device
AU2003901612A0 (en) 2003-04-04 2003-05-01 Head Electrical International Pty Ltd An electrical connection device
CN103046920A (zh) * 2011-10-12 2013-04-17 王晓强 一种密封绝缘机构
CN103779720B (zh) * 2012-10-19 2015-12-09 中国科学院沈阳自动化研究所 一种水密连接器
CO6800257A1 (es) * 2013-05-17 2013-11-29 Solpetrocol S A S Sello mecanico de alta presión para cables y lineas de conducción en pozos petroleros
CN106252976A (zh) * 2016-06-18 2016-12-21 上海西派埃自动化仪表工程有限责任公司 一种通用的电气线路与动力线路的模块化连接结构及其应用
WO2020175347A1 (ja) * 2019-02-27 2020-09-03 株式会社村田製作所 プローブ素子およびプローブユニット
CN114578127A (zh) * 2022-05-06 2022-06-03 鲁特电工股份有限公司 一种用于电力变压器输入输出功率的测试装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970352A (en) * 1972-09-25 1976-07-20 Bunker Ramo Corporation Electrical connector having improved contact retention system
FR2266332A1 (en) * 1974-03-26 1975-10-24 Souriau & Cie Multiway electrical plug and socket connector - has make and break pin circuit indicating correct connection
US3963297A (en) * 1975-10-01 1976-06-15 International Telephone And Telegraph Corporation Underwater pressure compensated electrical connector
JPS5826789B2 (ja) * 1978-06-07 1983-06-04 平河電線株式会社 コネクタおよびその製造方法
US4198110A (en) * 1978-06-08 1980-04-15 General Energy Development Corp. Connector
US4373767A (en) * 1980-09-22 1983-02-15 Cairns James L Underwater coaxial connector
JPS58135878U (ja) * 1982-03-10 1983-09-12 日本ビクター株式会社 カツプリング付接続プラグ
US4693534A (en) * 1984-09-17 1987-09-15 Seaboard Wellhead Control, Inc. Electric fed-thru connector assembly
US4795360A (en) * 1985-05-31 1989-01-03 Empire Products, Inc. Electrical cable connector for use in a nuclear environment
US4673231A (en) * 1986-02-04 1987-06-16 Hughes Aircraft Company Underwater electric cable tension termination
US4728296A (en) * 1986-09-05 1988-03-01 Stamm Bradley C Electrical adaptor for downhole submersible pump

Also Published As

Publication number Publication date
CA1287671C (fr) 1991-08-13
CN1011842B (zh) 1991-02-27
MX169766B (es) 1993-07-23
NO172779B (no) 1993-05-24
EP0290338A1 (fr) 1988-11-09
FR2615044B1 (fr) 1992-10-02
IN170415B (enrdf_load_stackoverflow) 1992-03-21
CN88102693A (zh) 1988-11-16
FR2615044A1 (fr) 1988-11-10
NO172779C (no) 1993-09-01
DE3873598D1 (de) 1992-09-17
DE3873598T2 (de) 1992-12-10
NO881927D0 (no) 1988-05-03
US4874328A (en) 1989-10-17
NO881927L (no) 1988-11-07
JP2678616B2 (ja) 1997-11-17
JPH01157077A (ja) 1989-06-20

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