FR2531480A1 - DEVICE FOR REMOTE CONTROL AND CONTROL OF WELLBORE CLOSURE FACILITIES - Google Patents

Abstract

THE INVENTION RELATES TO A REMOTE CONTROL AND CONTROL DEVICE FOR THE CLOSING OF OIL OR GAS DRILLING WELLS, INCLUDING REGISTERS 2 AND OR SAS THAT CAN BE CONTROLLED BY PERIPHERAL UNITS 16. THE CONTROL CIRCUITS OF THE UNIT PERIPHERAL 16 ARE CONNECTED TO A REMOTE CONTROL UNIT 7 BY RADIO AND TRIGGERING ACTUATION OPERATIONS, THE PERIPHERAL UNIT 16 CAN ALSO SEND CODED SIGNALS WHICH ARE USED TO CONTROL THE OPERATIONS TRIGGERED; AT LEAST TWO PORTABLE TRANSMITTER-RECEIVER DEVICES 12, 13 WITH IDENTICAL EQUIPMENT, WITH THE AID ON THE ONE HAND THE ACTION OPERATIONS OF THE DIFFERENT REGISTERS AND SAS OF THE BOREHOLE CLOSING INSTALLATION CAN BE STARTED THROUGH RADIO SIGNALS PROVIDED BY THE PERIPHERAL UNIT 16, AND ON THE OTHER HAND, THE OPENING AND CLOSING STATE SIGNALS OF REGISTERS AND SAS CAN BE DETECTED BY DEVICES DISPLAYING THE CORRESPONDING SIGNALS.

Description

DEVICE REMOTE CONTROL AND CONTROL DEVICE

CLOSURE OF WELLBORDS

  The present invention relates to a device for remote control and control of closure installations for wells or holes for oil or gas formations, comprising registers and / or locks to be actuated mechanically; which can be controlled by peripheral units equipped with driving devices and control circuits; having at least one apparatus equipped with display devices for controlling and controlling one or more peripheral units; as well as a control device receiving the status indication signals. For the operation of oil and gas drilling rigs, whether on shore (On-Shore), or in water (Off-Shore), there is cooperation between the head nurse (driller) and the so-called tool pusher, where the sounder is usually placed directly in the borehole area while the site supervisor with a corresponding control system is placed outside the drilling area Drilling known devices for controlling wellbore closure facilities are therefore equipped

  central apparatus from which two control conductors

  There is also a control unit for the sounder and an auxiliary control unit for the site manager. The central unit also has a hydraulic or pneumatic control, the ducts extending over

  rather large distances In the known remote controls used especially

  for the control and control of

  well, a whole series of cables, pipes and hoses

  long distances, and the known risks for such long-length conduits, which can result in damage (tearing, crushing) or

fire effects.

  In installations operating in an area of calm waters, the

  corresponding conduits are placed on platforms and

  the undesirable obstacles in the drilling area.

  The control and command panel for the fishfinder is also in-

  installed in a fixed position in the borehole area.

  the sonar is obliged to leave this place so that the control of the wellbore closure installation can be carried out only through the auxiliary control of the

site manager.

  There is therefore the problem of developing a

  remote control and control system for

  borehole, with which it is ensured to maintain, with interven-

  a radio remote control, a secure cooperation between the chief of

  construction site and the welder, also under fire and

  to ensure that overall security is increased in relation to

  operating conditions of known facilities.

  This problem is solved, in the case of a device of the type defined above, in which the control circuit and the peripheral unit

  connected to a radio-controlled organ and triggering the

  the peripheral unit can also transmit coded signals which are used to control the engaged operations. At least two portable transceiver units with the same structure are provided as central control and as a control device, by means of which on the one hand, the processes of movement of the different registers and locks of the peripheral unit of the wellbore closure installation can be switched on by means of radio signals, and on the other hand the state signals of opening or closing of registers

  and airlock can be detected by display devices

corresponding figures.

  This device has, unlike the prior art, the property that the remotely controlled peripheral unit can be arranged in

  an enclosure near the wellbore The hydraulic hoses are

  Long-distance linkers The peripheral unit may, in addition, be protected and placed under enclosure so that it can withstand hazards, such as fires or gas explosions, for at least a certain period of time. bulletin boards and

2531480,

  q-ui are installed-in a fixed position for the sonar and the site manager, and also in place of the central unit, we use portable transceivers that are arranged

  as response devices In the event of danger, they may be

  of the drilling rig Even in the case of an accident that

  prevents the sonar from intervening, the site manager is able to

  order all essential emergency operations The site manager

  and the sounder can intervene respectively in the hierarchy of

  planned so that each operation and each change of state achieved by operations in the well closure

  drilling are highlighted in both transmitting and receiving devices.

  tors. It is obvious that remote control installations are known

  radio stations which are used for different purposes, but it arises

  the particular problem of allowing also, in the case of a division of labor between a welder and a site manager, a safer service and maximum safety in the

  information and orders under urgent conditions.

  occurring in well-closing facilities

drilling.

  The driving and transmission safety is increased by the fact that the two portable transceiver devices are additionally provided with a compatible telecommunication device in

both ways.

  Driving safety and protection against false ma-

  are improved by the fact that portable devices are

  equipped with a safety interlock device which must be unlocked

  rusted before the triggering of an opening signal of one of the registers or lock Such a locking device can be constituted as well

  by an electronic switch than by a flap which is pivoted mechanically

  nically via a corresponding contactor and which must

  be raised before unlocking.

  Other features and advantages of the invention will be

  highlighted in the following description, given by way of example

  nonlimiting, with reference to the accompanying drawings, in which: Figure 1 shows the control system of an installation

wellbore closure; -

  FIG. 2 represents an exemplary embodiment of a device

tative transceiver.

  FIG. 1 shows a pipe 1 of a carbon fiber well

  rage, which is provided with a damper 2 actuated hydraulically and which is connected via at least one duct 3 with a solenoid valve device 4 The solenoid valve device 4 is associated with a radio-controlled organ 7 and triggering electromechanical actuation process The electromechanically actuated parts, namely in this case the solenoid valves 8 associated with the device 4, are controlled by

  corresponding radio signals, which are generated by means of a receiver.

  10 installed in a fixed position and which is associated with the member 7.

  Such radio remotes are known per se.

  In addition, the organ 7 is associated with several transmission paths.

  pressure pressure, to a pressure generation pump, to

  valves, valves and similar components (not shown).

  to fulfill its function Parts 4, 7, 8

  and 10 are arranged by being protected behind a chamber 6

  with heat and pressure They constitute a peri-

  16, which is controlled and controlled by one or more devices,

  as will be explained in the following In place of a hydraulic control

  lique, one can also use an electric drive or a command

electromechanical.

  Line 1 is associated with a closure system 9, which is also called an anti-eruption obturator. It prevents that, in the case of a sudden increase in pressure, a so-called rash occurs. of the closing device 9, which act as valves, are also connected to corresponding solenoid valves 8 of the peripheral unit 16 The peripheral unit 16 is further connected to the upstream transmitter 30, which transmits indication signals the state of the peripheral unit to a control device 12, 13, 14, 15, as will be explained in detail in the following To enable the permanent operation of the peripheral unit 16, there are further provided batteries 11 , associated with a charger, inside the enclosure 6

  protection against pressure and heat.

  The remote control and control device of the installation of

  The closure of the wellbore is also associated with two

  12, 13 identical equipment transceivers and two receiving devices, including a remote control indicator 14 for the site manager and an indicator device 15 for the sonar With the aid of the transceiver devices 12, 13, it is On the one hand, it is possible to start the maneuvering processes of different registers 2 and

  of the wellbore closure installation 5 through the

  radio signals that are applied to the peripheral unit 16 and

  on the other hand to allow a detection of the states of opening or

  placing registers of the closure system 9 by signal display devices, for which corresponding signals are

issued by the peripheral unit.

  FIG. 2 represents, as an exemplary embodiment, a transceiver apparatus 12, which is provided inter alia with five actuating switches 17, 18 which are each provided with green light diodes

  The number of contactors depends on the number of valves

  both in the closing device 9 to be actuated, the corresponding registers provided in the line have been designated by appropriate symbols.

  or in the closure system 9.

  Each apparatus 12 also has on its upper side a

  latch switch 20 which can be closed by a protective cover

  Alternatively, the above-mentioned control zone comprising the actuating contactors 17 and 18 is closed by a corresponding protective cover 22. The apparatus is housed in a casing of approximately parallelepiped shape and is more on its upper side an antenna 23 Laterally, there is provided an on-off switch 24, a microphone key 25 For the indication

  the discharge duct lock, a lamp is also provided.

  witness 26 The two transceivers 12, 13 consist of

  identical equipment, and they are therefore also

  changeable. The two portable transmitter-receiver units 12, 13 are provided for the site manager and for the welder. The transmitter 30 and the receiver 10, which form part of the peripheral unit 16, correspond with these apparatuses. occur an exchange of status indication signals and control pulses between the unit

  device 16 and devices 12, 13.

  The operation of the device will be explained with reference to an application example: In the opening condition of all the registers and locks, the diodes of the corresponding contactor 17 light up in green. red and thus indicates that leads to

Duse is closed.

2 531480

  Through the radio link, the site supervisor

  the sonar he must close the upper airlock and he must open the discharge pipe The site manager sends a confirmation and sonar activates the unlocking switch 20, which is protected by the cover 21, so that the one it can not be operated inadvertently. After unlocking the contactor 20, the right upper key 18, corresponding to "closing the jaws on rod" and the on-off switch 24 placed on the side of the device 12 are actuated by the sonar With this simultaneous actuation , the electromechanical parts of the valve are switched on and begin to close At the same time, the green indicator lamp of the switch 171 corresponding to "opening of the stem clamping jaws" goes off on the corresponding side This process is signaled by radio to the receiver of the second portable apparatus 13; in this case, too, the indicator lamp

  The green of the contactor 171 turns off in correspondence. The corresponding signal

  is transmitted simultaneously to the peripheral unit 16, where the electro-

  corresponding valves 8 are excited via electronic circuits When the operation is performed satisfactorily, a pulse is sent by the solenoid valves 8 to the transmitter 30 of the peripheral unit 16, which transmits the satisfactory result by radio to the two transceivers 12, 13 When the pilot lamp

  contactor 18, corresponding to "closing of the jaws of ser-

  rod rage "lights up, the sonar and the site manager are in addition

  informed that, for example, register 2 is closed In the case of

  tions operating electrically, the action is transmitted in correspondence

  to the transceiver, whereby the return warning is again

  in the case of non-lighting of a pilot lamp on the

  transceivers 12, 13, this means that either a change

  determined position of the valve position was not achieved, or that the

12, 13 is defective.

  In addition, all actions are also received and indicated

  on indicators or indicating devices 14, 15.

  Conversely, this being indicated again by way of example, the corresponding choke lines are opened in the same way. After termination of all the actions, the locking is established by maneuvering.

  corresponding contactor 20 and cover 21.

  It should be noted that the anti-eruption obturator can also be

  opened and closed gradually via the transmitting device

  receiver For this purpose, it is intended for control, on the device

  transceiver, a manometer 28 solicited by radio pulses.

  Thanks to the radio remote control of the closing and opening functions, greater security is obtained because the sounder can directly perform actions from the drilling station and

  on the other hand it can control the essential operations of the installation.

  Well-Drilled Closure Closure Distance from a Safe Distance The established telecommunication link allows the sonar and the site supervisor to establish a closer contact with each other.

  Also so-called catastrophic conditions (explo-

  sions, fires and the like) can not immediately cut the

  communication when the sounder manages to leave the platform of

rage with his device -

  The portable devices 12, 13 and the transmitter 30 and the

  10, provided in the closure system, are provided for example with

  Many electronic plug-in cards are redundantly arranged with regard to the control units. They are furthermore arranged in such a way that other radio links of this system can not be influenced. The system is applicable in installations as well.

  on land only in offshore installations.

8.

Claims (3)

  1. Remote control and well closing installation control device for oil or gas drilling, having dampers and / or mechanically actuated locks, which can be controlled by peripheral units equipped with driving devices and control circuits, comprising at least one apparatus equipped with display devices for controlling and controlling one or more peripheral units, and a control device receiving the status indication signals, characterized in that the control circuits of the peripheral unit (16) are connected to a radio-controlled member (7) and triggering the actuation operations, the peripheral unit (16) also being able to   transmit coded signals which serve to control the triggering   and that at least two portable transmitters are   receivers (12, 13) with identical equipment, on the one hand   the operations of actuating the different registers and the lock of the in-   the closure of the wellbore can be triggered by the   radio signals supplied by the peripheral unit (16), and on the other hand the opening and closing state signals of the registers   and airlock can be detected by means of corresponding figures (17, 18).   2. Device according to claim 1, characterized in that the   two portable transceiver devices (12) are provided with   both of them with a compatible radio communication device.   3. Device according to claim 1, characterized in that the   portable transceiver devices (12) are provided with a   security lock (21, 22) which must be unlocked with   triggering a signal for one of the registers or locks.