Connecting a flexible line to a subsea station

Ί ορ · Ι é £ f. THE.

DESCRIPTION

Dos® 3193 δ Kit of an Industrial Invention Patent Application entitled "Procedure and Equipment Connecting a Flexible Cable to a J Submarine Season" |

I on behalf of * socjetb nati.ονλτ έ elf aqujtajne (prc- · DUCI ΊΟΝ) and COURBE VOI E (France) (Priority U.S. Patent Application, n 759.031 of January 13, 1977)

Inventors named * Georges M. CHATKAU and Chester chio to connect a flexible line such as multi-conductor electrical cutter for power and control circuits / a flexible single flexible sheath for conventional flexible cables, to a stationary remote control with remote controlled means and senzsj ί! The provision of a roller shutter or a shovel or a shovel, the invention also includes a process for joining a flexible line to a station- B. FAI.KNBR Jr,

<img img-format="tif" img-content="drawing" file="IT1092003BD00051.tif" id="idf0001" />

<img img-format="tif" img-content="drawing" file="IT1092003BD00052.tif" id="idf0002" />

The present invention relates to an apparatus in which a chassis structure of the cable, which carries a receptacle-receiver, the outlet 13 which receives a receiving means disposed at one end of the power line is discharged to the submarine station from a |

THE

Shift or nonautical tools that have an imp ^

It is necessary to cast the frame and frame glue and hold the locking members in the released position to get the guides on the submarine.

Background of the invention

At present, there is a tendency to install submarine stations on a deep sea bottom, that is far beyond the teacup at the &lt;£ ua1 © is allowed to a sailor to participate in | coupling of the creeps of wells and equally beyond the depth at which dumbbells or submarines canor be comfortably used to perform such a function, Submarine stations placed at the bottom of but i t · &lt;. are controlled remotely and, in order to ensure such a command, it is necessary to use elec tric wires or power lines of command circuits to operate the equipment which are in submarine installation, or | which are associated with the latter and found in the corresponding shaft heads. Flexible conductors often encounter t &lt;j. in the maintenance and upkeep of the 11th assembly of the 11 assembly with a fixed seawater riser of the submarine station,

THE

Equipment and means previously proposed for; ί; 1. fitting an end of a cable or flexible conductor with a fixed receiver in an underwater station has required accustomed. the assistance of. a dumper or robot involving a manipulated device to perform such a collage. These pie ceder systems; Lieutenant i

: Proposed, When Used at Depth Of. water! "Big meditations, long-term, difficult-to-perform operations take place.

The present invention relates to a method for attaching or fixing a flexible cable or conductor to an underwater station, virtually at any depth and without the existence of a sleeper or a sleeve robots equipped with means of manipulation, [; The invention refers more particularly to one; I i; the apparatus for making such a connection and ad

A method or technique that penneite to establish this'

: The 4 ovals come in a safe and effective way.

A first object of the present invention is to provide a method and a device for attaching and securing an end of a flush cable to an underwater station. j

Another object of the present invention is that cjl

I provide a chassis frame of. a guide suitable to carry a cable end equipped with a receptacle! of connection to the submarine station, to drive the said guide frame frame and the frame; the detachable maneuvers of the station. Another object of the invention is to. provides such a guide frame structure with electrical connector, in which there are provided means I!

Go receiving grips that can rotate compared to the! make the chassis structure in such a way that it can

were position changes. the load carrying capacity of the flexible container container is not normally transmitted to the bend lines along which the chassis structure moves during its downhill movement to the submarine station, whereby said structure a; | chassis is not subdued and forces that would tend to cause its wrap with the guide cables. !

ϊ Ο f ϊ "" '' ^ * 1 A i: - F, ι,

Anchor Another Purpose of the. 1. The invention is to provide a new method for performing such an attack or connection with an underwater station,!

: the method comprising the use of a mobile device that cooperates with the frame structure of jguida and which allows for the driving aisles foreseen on the sub-station, at the rail-frame structure 1, mobile tool to be associated to cooperate with each other in a new way. "Still another object of the present invention is J; is to provide a new construction of a movable ij tool and a chassis structure for guiding a cable connector, which allows the said chassis frame to descend convexly and to associate with the upright guide posts ! iji on the submarine station, the same pd-! I tend to be recovered when this is needed:

THE

The series for maintenance and inspection purposes. | . ; ! Other objects and advantages of the present invention include will proceed from the reading of the following description: &lt;3the drawings in which, by way of illustration, is illustrative but not limitative, a form of embodiment or exemplification of the apparatus and of the method according to the invention. the good ones of the sign

V - 6

THE

Figure 1 is a diagrammatic elevation view of a submarine station, this figure showing juna ship above the station, such as a cable laying vessel, which accomplishes a snap of the process according to the invention. FIG. 2, a fragmentary perspective view; goes on an enlarged scale of. a part of the underwater station and also makes it possible to see a guide frame structure and a mounting tool placed in a position just before the glue engagement

Submarine station, Figure 3 is a sectional sectional view, enlarged scale, which is taken along line 111-111! of Figure 2 and shows the supports, one of the pivots rotations. • Figure 4 is one. fragmentary view, in perspective on an enlarged scale of an underwater station, is

the landing tool being in the rear position. Figure 5 is a fragmentary view, in an enlarged scale of the submarine rail upright, and the figure shows a funnel funnel of the chassis structure clamped on this surface and a locking arrangement for the " which is secured in a separable manner on the chassis frame guide rail 7 »

Figure 6c is a fragmentary view similar to the fixture 5, the clamping mechanism of the mounting mold being removed by the bushing and the guide flap of the frame structure Figure 7 is a fragmentary view in the perspective view see an electrical connection terminated by a submarine stallion. or.

Figure 8 is a fragmentary sectional view that is performed on the same plane as in Figure 3 but showing the. pin in a cooperating tight position. the

In Figure 1, an underlying station is desiccated by 20, which may involve a wellhead as well as control and production modules (not shown). The submarine station 20 may be of the type illustrated in patent application Italianon1 · 29886 A / 77 filed on 22/11/77 by the Recipient. Above the submarine station 20 is positioned a ship 21 having a derrick 22 and modified by an opening 23 which is placed below said derrick and in which a drilling rods 24 can pass through so as to cause it to descend -: a chassis structure of. guide and cable connection 25 to submarine station 2.0. The guide frame structure 25 is guided on the mounts of the season 20 with the aid of a rope or wires 2 7 wrapped, on a constant tension winding 28. INSTRUCTIONS FOR COMPLIANCE, WIRING Each Guide Rail 27 a] From the upper part of the guide jumper j is implemented by means of. if it is well understood that it does not fall within the scope of the present invention, a cable laying vessel 30 comprises a drum 31 around which a cable 32 can be wound and stored. This cable 32 is carried by the drum 31 for 11 intermediate arenas of a cooked hand 33 and leads to its free end a cable receptacle 34.jf 1 cable 32 which intervenes in the first example, is a flexible electrical cable carrying several circuits that serve to operate certain submarine station 20. The other end of the cable 32 is bonded to a station very far from the submarine station 20,

This chassis frame 26 includes guide sleeves 36 which receive spaced uprights: 9

a longitudinal slit 47 which is open at its upper end and extends to the proximity of the lower end of the receiver 44. The lower end of the gripper housing 44 carries an axial projection 48 which serves as a clamping or clamping device when the transducer 44 is in a selected position which in the example considered coincides with the vertical position. The transverse portion 50 of the U-shaped chassis portion 38 is provided with an engaging collar 53 which defines a recess of. blocking 52 r io -% £ j 'i »; The f is intended to receive a clamp element 48 as will be described below, the partial ends of the partially cylindrical body 46 are provided with an orthogonal portion of truncated lip guide 54 which extends outwardly and which is intended to facilitate the entry of a device into the cup holder; 11 support means 4 is shown in Figures 3 and 8. In FIG. 3 the support of. : tipping 42 involves a chamber which is shaped like a key 56 and has a support half partially circular 57 for the pin 4 3 which is dyed so that it can rotate and which may have a generally rectangular cross-sectional justification elongated and fitted with. superiici. arcuate exits 58 and upper and lower side auxiliary and parallel 59. The chamber 5 includes a keyhole-shaped recess 60 which is adapted to receive uric portion of the. pivot 43 all the way that the bowl cup 44 holds,! the vertical layout and the largest axis of the! ; Rectangular section is also vertically arranged! | Mind. In such a positioning of the light box 4 4 the protruding element of. block 40 is formed by a retractor 52 and, as a rep; ? presented 4n Pig, 8 / i. pins or pins descending towards the box, penetrating the cage! : turn key 6 to hold and hold the glass with the 4 4 ​​holder vertically. ! | it has the capacity of the movable gripper housing 44 to rotate in the tilt support 42 when it is not in the upright position facilitates movement. the downward movement of the structure 25 when the cable signaling device 32 is brought to this, that the cup reel 44 is mounted so as to. being able to rotate or rotate to a position as indicated in FIGS. 1 and 2, to adapt to the loads exerted thereon by; when the latter is connected to the ship 30 and when the frame frame 25 is drifting towards the submarine station 20, it appears that in certain conditions that the sliding structure of the chassis structure 25 having an electrical receptacle 34 associated with it, the tire converter 44 &amp; free to rotate on its pivoted pins for as long as said rj. * "The blind-winder does not move to a jupiter position. Accordingly, the structure of the frame 25] is discharged from any one, which has a tendency; to tilt it and produce a wrapping of the grooves 36 in the line (shorts or ropes) of guide 27. More in the laying of the cable 32 on the bottom of the sea-ήο, the container-receiver of. socket 44 is in the upright or vertical position where it is locked as described. the electrical receptacle 34 may be a typical submarine electrical connector having a T65 head which is slidably formed inside the glass container 44 / its tail is tested by a flange or collar 66 which picks up with the flange 66a present on the body in a cup 68, the flange 66a defines a narrow portion with the cap 57 suitable for being received in the casting 47, the collars 66 and 66a secure the tightening of the cord receptacle terminal cup 68! to the T 65 head. The connector 34 is attached to the lower portion of the cup container 44 by means of a plurality of threaded bolts. 69 which are arranged through the partially cylindrical wall 46 and are. lock onto the T-shaped head end portion of the T-head, so that the connector 34 is securely fastened to the receptacle cup holder 44,

As best seen in Fig. 7, the terminal face of the test head 0 T 65 is placed 13 - it is provided with a key 71 on its extruded surface to create an aligned engagement with the slit '

Top A7 obtained in jack receiver 44, Plug 70 is retained; which is pressurized with the receptacle cor responding 63 through a vessel 72 filled with a heavy material such as lead. Between the receptacles 72 and the plug 70 can be prevented a roll 4 it can make and take an appropriate cable length to do. ' laconnessione coll 1 equi page? the need for station at today's station.

The structure and casing 25 to which the receptacle electric receptacle 34 and the cable 32 are associated may be assigned and associated with the submarine hours in a new way. As indexed in Fjg. 1, the cable receptacle 34 is associated i i in a fixed manner along with the toroidal holding of the glass 4 4 a ^ i i the rolling structure on the ship 21. 1.1 Cable 32 is wedged by a roller 31 mounted on the laying vessel 30. The chassis frame 25 is lowered along the rope, a constant tension guide 27 from a perforated rod trap 0 · Ion 24. When the strut i

1 The chassis 25 reaches the submarine station j20, ijulda hubs 36 receive the uprights, guide 26. As shown in detail, 14 "I, θ '"; in Fig. 6, the plurality of guide cutters 36 are locked to: detachable snap to the guides of 26 and supply- so get the means to recover the structure at jte! 25 and the cable receptacle associated with it. it must do maintenance and review.

In the Pig 6, each guide upright 26 is provided with an unreceived b 1 position 76 that you hear them, 1, or not. the upper silo of the upright bush digs 26. Each guide sleeve is provided with a fp

The crossing ro 78 having an annular shoulder; facing down 79 on which one can stand! inner annular element 80 fixed with bolts fi.4- · read 81 extending through the wall 1φ-teral and the sleeve 36 into the annular element i. The upper surface of the element 80 provides the spider to a compression spring 82 having its upper extremity resting on 83 against a locking sleeve 84 of which the outer circumference of the groove is slidably received within the inner portion 85 of the hole 78. The sleeve of. clamp 84 includes an enlarged chamber 86 defining sleeve walls having a thinly sloping section and ending with a radially and internally enlarged inner edge 87 which form of the superf. go inside the cam 88 go to - 15 to engage. with cams having large clamping heads 89 formed on a plurality of clamping members 90 carried by the ring member 80. The clamping members 90 include horn SIs having a relatively thin section and which are formed between the outer surface 'of the guide upright 26 and the spring 82. From the flange 6, so that the structure 25 is locked on the guide rail 26 when it is assembled with it and |

I that the locking sleeve is pushed by mo 11 is82 in its upper position. In that position

THE

the upper end of the locking element lM i

I extends over the sleeve 36 so as to come into contact with a landing or assembly tool 100 which will be described below. I · 1 mobile tool of. spool and mounting are shown in Figures 4 and 5, cylindrical elements 101 and includes a pair of edges 1 which are spaced apart from each other and interconnected by a cross bar 102. Each cylindrical element 101 com ¬port an axial opening 103 through which it passes a guide rope 27. An apple between the cylindrical elements 101 is the transverse bar 102 with a spindle 104 facing upward and allowing it to be assembled detachable to one

THE

The 16 fi C'p 'f' f'tCit, p. I. service connector 105 brought from the 'end' to ì

THE

the hours of the column of drilling doors 24, and the service connector 105 are provided with locks which are engaging machining mechanisms, - they are 180 ° the one and the other and are closing on the mandible without the loops - By clicking this, the service connector 105 is discharged. A fluid flow tube 107 supplies the drive hydraulic fluid to release the locks 106 when you want to separate the tool mounting j.00 from the drilling rod column 24 in the stylus. zionc underwater, j

Each cylindrical guide and locking element lol is able to be removably connected to the guide sleeve 36 on the chassis frame 25At it is with the lance on the guide sleeves 36 1 'u-

Threads and assembly 100 can, by means of the rods 24, lower the frame structure 25 to the submarine station, or it may retrieve the same structure 25 from the station station, by pulling the locks between the 3iped sleeve and the upright guide 26 in a position sgen-! cist. |

Fig. 5 represents the tool of. assembly with the chassis structure 25c with the handle, β, β 17, and the guide rail 3S in the released position with respect to the guide post 26. The element cylindrical and locking cylindrical body 101 comprises a hollow cylindrical body 110 having a top hood 111 attached to it with the aid of an inner thread indicated by 112. The upper cap includes a ring flange 113 directed inwards and defining 3 The apertures 103. The extremities, which are the body's hours 110c provided with an inner anus portion 115 having a conical surface 116 flattened downwardly and toward the outside and destined to be applied, as indicated in 117 , on a spaj's read conical 118 formed on, guide sleeve 36 j • in order to limit the. the disengagement movement of the mounting member 100 with respect to the structure, b chassis 25. The annular ring element 115 is an- i! it comprises a conical and conical conical conical member intended to engage with a conical conical surface 121 on each of the number of clamping fingers 1.22 and dependent on an aggregate annular member 123.

The foliower 123 includes a jumper 124 which is inwardly directed inward 124 and defines an opening 325 intended to receive the upper portion of the guide upright 26. The collar the liver 124 forms a seat such as that which indicates the end of the lower extremity of a compression spring 127 which has a top end restrained. as in 128 against the upper ones: inside of the internally flanged flange 113 of the collar or flange 124 hood 111 extends over

The top edge of the sleeve 32 as well as the upper edge of the upper edge of the clamping mechanism 84 of the locking mechanism provided on the sleeve of the guide 35. The position of the bubble represented in Fig. 5, the piston contact established in 130 between the flange 124 and the clamping sleeve 84 is such that this cooked moth 84 is held in retracted position while the spring 82 is compressed and the grooves 89 are in the position of the disengagement from the plurality of guides 26 or in the reception position: of the first and second plurality of means for disconnecting the spooling tool 100 of the chassis structure The guide sleeves 36 and the guide sleeves 36 comprise a line 132 for pressurized fluid / which can be moved, along the axis of the rod or rod;

THE

Perforations 24 and which can be connected via other conduits of. fluid 133 to the unlocking device provided in each cylinder of, lock

THE

THE

In Fig. 5, the liner or tube with pressure fluid 133 can be connected to the opening device of the blocking block; which comprises a cylinder 134 which extends a piston with a rod 135 which is articulated by means of its upper end exposed to a leg 136 secured with a jumble

Bi adapted to a cylindrical wall 137 extending downwardly of the aggregate annular organ3.24. The legs or shoes 136 are disposed in positions of love between the opposing mind on the annular member128 and each cylinder and associated member 134; 3.3 5 Powered by Pressure Fluid. pn Fig. 5 The drive of the pistons 135 due to the introduction of the pressurized fluid into the cylinders 135 of the cylinders 135 will move the annular annular member 124 upwards in opposition to the spring of the spring compression 127; the legs or pins 136 being movable in longitudinally extending slots formed in the cylindrical body 110. As the annular member 124 moves to the top, the enlarged faces 140 of the locking member 122 radioletically radial towards the ' exterior in the limb bounded by the thin wall of the. Does the body say the locking heads 40 can slide ite? PI 20 along the outer surface of the. guide 36 in order to unlatch the interlocking engagement tool with the chassis structure 25 * When the annular member "fo31ower" 123 has rays to the 3rd highest position of its vertical stroke | in grooves 138 it becomes clear that the compression sleeves 4 2 to the inside of the sleeve 36 will push the locking sleeve 84 into a top position similar to that of the large representative. 6 / in which the clamping elements 89 are kept in engagement with the upright of 26, The mounting tool 100 can then be removed and separated from the frame 25; ! ì f! when you want to remove the frame 25, you can lower the muzzle tool 10Changing the guide ropes as indicated in 27, will go over guided on the guide rail 26 from the surfaces, therebetween to the outside and from the body surface 13 to 6 of the body, which comes into contact with the sloping or tilted edges! j on the clamp sleeve member 84 and the grid 36. As the annular member * will follow the contact with the upper edge portions of the block sleeve element 84, it will slide downwardly said member 84 to compress the sleeve 82 and to disengage the dampening guide locks 26. During the same movement in the lower part, the spring 127 drags towards the base 1 '

Ring decay 113 obtained in the outer surface of the. sleeve 36, when this engagement is blocked by the sleeve 36, the frame frame 4 can be moved toward a high sliding guide rail 26 and can be taken to the J1.0 for carrying out service operations on the receptacle electrical connector 34 and a3tr.ij

equipment associated with frame frame j25. With reference to the previous description of the pickup ion of the structure or chassis 25 / i, it will be understood that the container 72, the drum to be drilled. 73 and the associated coupling 70 jj will be retracted by connecting a cable to the perforated bracket 144 at the top of the container 72. After the chassis structure 25 conducting the cable connection and carrying the cable. el-&gt; connector 34, has been locked for clamping on many cot ij ti. guide 26 and, of. consequence, it has been assured! ! and fixed it at the submarine station, the battalion | cable feed 30 can move in the 22 - Τ ......... Fifth tip of the f -, the path of the track along which the cable is posed on the bottom of the sea. As the cable is loosened of the storage coil 31 and is subjected to tension due to the operations for its laying, the bi-directional container will be rotated to the vertical position and will be lowered in relation d: locking the frame structure or cable 2 5 according to what has been written above. Connecting the plug 70 and the connector

The heavy ball 72, with the glass container, is realistically ready for the plug and the weight and weight of the roller by means of a tool to mount the guide strings 27. The plug 70 is guided to the alignment condition with the receptacle connector 34 using its contact with the paper 54 and the engagement of the key 71 in the welding lugs 4 and 7. The coupling and locking of the cable connection at the atelier structure 25 with the dowel bosses 26 and also with the 11 mounting fixtures 100 ditching or disassembly of the same cable connection structure allow a remote assembly and remote control of an electrical connector to be connected to an underwater station,