DE2001730A1 - Procedure for wire rope work and wire rope lubricator - Google Patents

Description

DR. ING. B. HOFFMANN · DIPL. ING. W. EITLE DR. RER. NAT. K. HOFFMANN PATK NTANWALTE D-8000 MÖNCHEN 81 ARABELLASTRASSE 4 TELEPHONE (0811) 911087

Lockheed Aircraft Corporation, Burbank, Calif. /UNITED STATES

Procedure for wire rope work and wire rope lubricators

The invention relates to a method for performing wire rope work in an underwater well installation which comprises a liquid-tight well containment chamber surrounding a production arrangement for producing fluids from a well bore, and an apparatus for performing this method as used in the oil industry be used. The invention is in particular: · ■ suitable for wire rope work by a submarine chamber: -.- *: w.: On or near the seabed.

009831/1091

If wire rope work is to be carried out in an oil or gas well, it becomes irrational. generally uses a lubrication device, in order to be able to introduce wire rope tools into the source. The lubrication device is generally suitable on the flow control parts (Christmas tree) on the spring rim Manner, as if fastened by a flange connection. In the long run The flange connection is provided with a wire rope valve, with the aid of which the wire strand for guiding a wire rope tool can be sealed in or out of the source all around.

Typical tasks, which wire rope work done include the introduction and removal of fluid control devices down the borehole, paraffin scraping, sand scoops: and fishing work. After each insertion into the left hand bore must, regardless of which '. tool is required for a. Work process is used, 'Jas lubricator to be taken apart to remove tool and debris which rr.it removed with the tool.

Known wire rope lubricators typically consist of long. Pipe parts which are screwed together or otherwise connected to one another by hand. These lubricators are relatively long, approximately 9> 1 ^ ¹ ^ - ¹ ^ d very thin. When working underwater, it is easy to use. such writing; to work because it takes a lot of space to work and store. Further, because of their great weight and size, such known lubricating devices are very difficult to assemble and remove in an underwater environment.

Accordingly, it is the primary object of the invention to provide a wire rope lubricator - which one should try? ⁰ les moving and assembling the lubrication device, like -ie tyr> 1: sch if can-

009831/1091

BATH ORIGINAL

th devices occur, overcomes, and the problems of Storage when the lubricator is not in use is made easier, as well specify a procedure for using such a lubricator.

The task is experienced by a '/ according to the £ rfindumj; solved in such a way that a working capsule with an atmospheric The chamber in liquid sight serves to connect the rr.with the The source enclosure chamber is lowered, the working capsule having a telescopic wire harness with a first Tube part arranged telescopically opposite a., Second Hchrteil contains, atmospheric conditions in the Q, ueUeneii.-fasKunöskammer established, an access between the working capsule ur.d the Kair.rr.er is made so that £ equipment from the capsule ir. -the Karjr.er are brought k'inr.er., a wire rope tool ir.it one. Wire rope is connected, which in the. telescopic :. Wire rope safety device is included, v.-ährer.d sioa das Schmier-jrer'it ir. zurUjkjezo-that situation is, the second tube part of the chronograph device in sealing fluxi ^ - tight connection rr.it the P:; c äukticnsanorinurip "extended will, and daj; the wire rope and the wire rope tool through the production arrangement in the. "ueilenbohrur ..;: drained • .ν er ion.

The process according to the wire harness. _: -device is to iai a first li ^ hi'teii near eir.er. he.?te :. Ii :: ji-? eir.e outer cylindrical ".. 'ar.i ur.d eir.3 inr.-ire nylinäriitcheWall has, soft eir.e reached stretch Einukan :::: er zv; isch ~ r. iich form, ei:« s ; ie it; es Rohrteil. -leiter.i from the p _t in _£ -: ": ar.:r.er of the first. Rohrteiis auf- ^ er.oT.rr.e :. will, ei :: Kolbenele.r.er.t. to -t-inerr. The first end of the second AC part is canceled, ur.d sliding forward. der; -. ir.gkarr..T.er

SAS 009831/1091

of the first judgment in a liquid-tight relationship to the Walls of the chamber is added, a first hydraulic fluid opening in connection with a first end of the annular chamber for Zuf'.Ihren of pressure fluid is provided in the chamber, whereby a telescopic extension of the second pipe part can be achieved, a second pressure fluid opening in connection with a second end of the annular chamber for supplying pressure fluid is provided in the chamber, creating a Tolescopic Withdrawal of the second pipe part is achievable, a guide roller for the wire rope on the first pipe part near its upper End is attached and a sealing arrangement for the wire rope is attached near the top of the first pipe section, around one end of a lubricating cavity that runs through the inner Portions of the first and second tubular parts are defined to be fluid:.; IC'ceitsproof to keep a wire rope through the sealing arrangement in the. Sjhmierhohlraum is performed.

Other and further objects, features and advantages of the invention will emerge from the claims and the following description, v.eiche irr. Context rr.it is carried out with the drawing. It demonstrate:

? i ~. 1 shows an overall longitudinal view of an underwater installation as Example showing a typical application of the invention telescopic. Wire rope lubricator shows, and

Fig. 2 is an L ^y .ngsar.sicht, partly in section, which shows structural details of an embodiment of the telescopic erfindungsgerrä2en lubricating device as an example.

Fig. 1 shows an overall view of the main components as an example a system in which the wire rope schroiep according to the invention device is particularly useful. It goes without saying that the invention

009831/1091 BATH ORIGINAL " ⁵ "

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dung can also be used in other underwater caramer arrangements and just as well on land.

In Pig. 1 is a source containment chamber 15 as an underwater capsule shown, which is arranged on a source bevel 17 underwater. The source containment chamber 15 is equipped with a usual "Christmas tree" I9. The Christmas tree has the usual main valves and side connections for the delivery of petroleum products. These petroleum products can be added to a surface station or an underwater collecting station be guided with the help of liquid lines 21, which through a liquid-tight opening 23 run in the wall of the source containment chamber 15.

In order to be able to carry out wire rope work, the upper part of the Christmas tree is equipped with a buffing valve 25. The purpose of the bobble valve is to allow vertical access of parts of the wire rope into the well bore. When wire rope work is being performed, a breakout valve 27 is on the Christmas tree above the bobble valve 25 arranged to complete the well bore if a malfunction occurs during the wire rope works. As As shown, the source containment chamber has an access hatch 30 which is normally closed to be secure ensure that the chamber is leakproof and not exposed to the corrosive effects of seawater and putrefaction Marine fauna is exposed.

Typical guide lines J2 extend upward from a well containment foundation J> h to the surface of the water. These guide lines are used to lower equipment such as an underwater rework and work capsule into engagement with the well containment chamber I5.

009831/1091

In Fig. 1 is an atmospheric working capsule> ">, the the invented, telescopic wire rope splicing device contains, shown after being in sealing engagement rr.it the source enclosure barrel 15 lowered vjurde. The lowering the working capsule> 5 in sealing engagement ir.it the Source enclosure chamber I5 can be made with the help of a drive chain> 8 for the drill pipe. As the specialist can easily

detects, other devices such as lowering cable systems can also be used for the lowering process. Although not shown in the drawing, suitable lines extend for air, hydraulic and electric power, etc. vcr. the water surface into the capsule, in a way similar to the drive chain p8. The working capsule ^? is equipped with guide shoes 40, which surround the guide line. Vc fit. This represents a .suitable orientation for the liquidityJicht ·? Connection between the working capsule J '"ur / 1 der Quelleneinfassurigskarr.rr _; er 15 sure.

^R: hte seal produced at the point 44 'Venn yl- the working capsule in contact with the o.ueller.eir.-detecting chamber I5 is a flüssigkeitart is. At this time, the inner chamber 45 of the outer casing chamber and the body area 48 are placed under atrial atmospheric pressure by a process as described, for example, 3. in the US application of the Anrnelderir. "Sealing device for underwater installation" by Sydney 3. Heimus, serial number 7 ^ C 807, filed a. "N I9. September I9'8, is described.

After the seal has been made at location 44, an operator in the atmospheric working capsule 3o opens a hatch 50 in the lower part of the working capsule. The operator then gets off a Kärrner 5? the working capsule into the source enclosure chamber via the open "access hatch JO, at this point in time the operator can install the Sünwabber valve 25 and the breakout valve 27 for the Lr-ahtsez.1 ,

009831/1091 bad original

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if this - rdnunr-: n. neon not on your f ^ ats on that Christmas tree I9 are located. The valves for the production flow? were also closed before any rope work be made. The capsules are now able to to do ir.it wire rope work using the telescopic. Drahtseilscnmiergeräts, which in Figs. 1 and 2 generally with 55 is designated to begin.

The particular structural: Details of the new telescopic wire rope lubricator are on; best in Fir :. 2 to recognize. As shown in Fig. 2, the telescopic wire rope ch :: ii er.'erllt 55 consists of a first tube part 57 and a second tube part 59 which is telescopically movable into and out of the first tube part. The upper part of the first pipe part is provided with a holding device or Kontieröse el for stably suspending the Drahtseilsclnr.iergeräts 55 in the working capsule '5 ir.ittels a mounting ^bracket:' versenen. 2

A guide role: J for the wire rope ior, also a: r. upper part of the first iiohrteils 57 attached. The RUhrungsroilen Ct serve to guide the one Er.ie ^ 5 ac- Draiiseils; 7 in a packing box and .jtopfbüeasendicihtur.r arrangement as shown at '9. The DiohtunGsanordnunfr Ί9 vur.fa ^ t the wire rope tight and prevents the escape of liquid from the. moving the upper end of Rchrteils' ^, when the wire rope hierdurcn. The other end 71 of the wire rope is a suitable one. 3panr.wir.de 7J- connected (see Fic.l). The end - ^: 5 of the wire rope is equipped with a standard fitting part 75 for attaching wire rope generators. on the wire rope, as indicated by a Wer>2ei; gg 77, versenen. Ir. Any suitable locking device can be provided for the mounting part 75 for attaching the shortening 77.

BAD GiVä 009831/1091

The first pipe part 57 of the lubricating device has an outer cylindrical wall 80 and an inner cylindrical wall 82. These walls 80 and 82 define an annular chamber 84. One first pressure fluid opening 86 is in the outer cylindrical Wall 80 near one end of the annular chamber 84 and one second pressure fluid opening 88 in the outer cylindrical Wall placed near the other ends of the annular chamber.

A piston element 90 is formed on a first end 92 of the second tubular part 59. The piston element 90 has a suitable seal 94 in order to ensure a sealing contact of the piston in the annular chamber 84 during the sliding and telescopic movement of the tubular part 59 relative to the tubular part 57. Λ :. At this point of impact it should be noted that the inner wall b2 of the pipe part 57 also serves as a protective shield. Impurities from the source bore attack the sealing surfaces of the annular chamber 84 or settle on it. A further seal or gland packing 96 is provided at the lower end of the first pipe part in order to ensure a sealing contact between the screw part 57 and the pipe part 59 and to prevent the entrainment of pressurized fluid from the annular chamber 34. The actuator 59 can be telescopically extended by supplying pressurized fluid to the pressurized fluid opening 86 from a suitable source, not shown. Conversely, the feed serves before; Pressurized fluid to the pressure fluid opening 33 is used to retract the rchrteil 59 telescopically into the tubular part 57.

The ur.tere end 95 of the Rchrteils 59 is a device for Establishing a conventional quick connection and a sealed connection 100 back. · Interaction with a corresponding one Device at the breakout valve 27 in the source containment chamber 15 provided. Additionally, the lower end has

9531/1091

of the pipe part 59, a drain line 102 with a valve 104 for draining the inner chamber 106 of the wire rope lubricator 55 on. The purpose of the drain line 102 can be easily understood from the description of the operation of the individual parts, as given below.

Operation of the telescopic wire rope lubricator will now be described with reference to Pig. 1 and 2 are described. The mounting part 75 of the wire rope is only through the wire rope lubricator 55 down to the position as in Pig. 1 is shown. The desired wire rope tool or Tool 77 is then with the frame part on the best, in Fig. 2 as seen connected way.

Pressure fluid is then fed to the hydraulic fluid opening 86 and the tubular part 59 of the wire rope lubricator 55 is extended downward until it moves into sealing contact with the breakout valve 27 of the wire rope at the connection (see FIG. 2). The buffeting valve 25 on the Christmas tree 19 is then opened and the inner chamber 10-5 of the wire rope lubricator 55 is pressurized by fluid from the well bore. The tension in the wire rope Sj is then released, allowing the tool JJ to fall into the wellbore and there it can be actuated to perform the appropriate work down the hole. The gland oil seal assembly 69 formed on the upper tube portion 57 of the lubricator prevents leakage of source fluids.

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009831/1091

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After working with the wire rope tool below, go wrong. Locr have been performed, the wire rope is again undervoltage and the tool is pulled back up into the inner chamber 105 of the wire rope lubricator. The bobble valve 25 is then closed and the liquid contained in the inner chamber ΙΟβ of the wire rope lubricator 55 is drained off by opening the valve 10 ² J- in the discharge line 102. Pressure fluid is then fed to the annular chamber 64 via the pressure fluid opening 88, whereby the
Pipe part 59 telescopically upwards into the pipe part 57 of the
The lubricator is withdrawn. The wire tools ka ^ r
now in the usual way from the socket part 7? - The wire rope "can be removed and other wire rope work can then
be carried out in a similar manner.

While preferred execution by sforr.er. of the invention described it goes without saying that this varies and rr.cdifi ed can be. The invention does not lead to the exact -.- n Details as presented are limited; be, but should also extend to such changes and as they fall within the scope of the claims.

009831/1091

Claims (1)

: 001730 claims 1. '/ experienced to the implementer of wire rope work in a "uelieninstallation under water, which has a liquid-tight iuelleneinnahmkamraer, which surrounds a production arrangement for the production of liquids from a Quellenbohrui * ^, characterized thereby oh η et, da.r a working capsule (3 *>) with. An atmospheric chamber (52 ^λ in a fluid-tight connection rr.with the Queller.-Einfacsunrskai-ner (15) separated v.-iri, v: obei the working capsule (Ji ;) eil.Telc-scopic Dralitseil3chir: ier _t > advises (53) rcit one: first · ::! Rohi part (57) telescopically arranged at * a ;; second ear part (^ j) contains,. atmospheric conditions in the Q.ueileneir.nahmkamn.ex ¹ (15) is established, an access rv.'isv'iirn the working capsule {j6) and the Ka ::. r :: he is established, so The strength of equipment before. the liapsoi in iie Karr..T.er can be brought, ei :. Draiitseilv / Erkzeur (7 ^r · ⁷ 'n.it: a ::: Jrahtseil (67) v erbui.ie :: -v; iri, v.-eiohe. "ir. ierr. teleskepiüciioi. D ** a :: tseilsch: 7: ieiv ~ erät (55; or.tiia- ^ en i-st, while eich there ;? och-.iergerät is in the -'iclc ^ ozc.-enei position:, ias -v.'ite "vcnrteil (59) des Schr-ier ^ crllts in sealing fiUs.?!^- lceitsdio: rwe connection r.it der Produktic-r.sancr'dnunp extended 'A'iri, v: id that the wire rope () and the wire rope; Erkzeu- (77 ^λ duroh the Frodutkicx: »a:.: rd: iu; -. · are lowered into the ^, ue-lienbchung. 2, Verfai ^ re ::: .according to claim 1, iaiurch geke η η ζ eic hn et, da.? much more the wire rope tool (^ 7) ir. the telescopic wire rope device 35) is lifted, the production »- ancrdnu: -5 against the wire rope device (55), and that - the first Kohrt- si * (57) of the wire rope writer {^^ I: i a position within the working capsi (Jf.) 009831/1091 ^. Jraiitseiischmier ^ device for use in the implementation. Wire work ir. A source installation under water, jadui'ch ■■■ ο ke η η ζ eich η et, there? a first pipe part (57) near 'iinen. erso-en end of an outer cylindrical wall (80) and an i: .riere cylindrical '..' and (tu) , which has a .ani ^ stretch ¹ ; ·; Rinrkar.rrier (84) zv: isc.hen si oh, form a second; ear part (5: .'-), sliding ^{v: n} the Rin.;! ·: Ar. \; u er (84) of the first tube ■. '; ϋε (57; -uf. ^ enornr.-en is, a piston element (90) on a •; rster. rind (~: P) aec second part ( 53) is formed and -conductive by the R in ^: carrier (84) of the first part (57) in. Ri'issir-lceitsdichten: relationship to the '.-.' Found in the chamber. en is, a first Druckfluickeitsöff number .: (86) "in connection .Tit a, first E: .de the Rinekamrr.er (84) for supplying Druckfi ^: ..-;. ^ i.:;;ceii ir. the chamber is provided, whereby an *. telescopic hearing, extension of the second .'''Irteils (59) is achievable, a second Dr ^- .; j: i: filissickeitsöffnur.;. (88) in connection with a. - second, rd der . \ i :: i: - car .- ::: '. er (84) for feeding pressure fluid into the? lar: .rr.er is provided, v / o by means of a telescopic retraction aes zv / nits Rchrteiis (59) is achieved, a F-.hrui .- 'srclie (-. "' S) f ^r ir the wire rope on ersteri pipe part (57) whose upper close / Jnde is fixed, and a Dichtungsan- .i ';ru;.r;'■ /, f'Jr dac Jrah-soii nane iom upper end of the first j- ^ hr-part ^: (5 " ^7λ ar.; - ebrac: .t is, urr. Da :, vir.e end of a smear .cnlraur · s, because the inner parts of the first (57) and the second part (5; ·) are designed to be liquid-tight, v.-er.r. ei :: Drar. ·: Rope u through the Diohtu .-. R arrangement (69) in which 3: ih: rierncr; lr-au; r., - is carried out. -. Wire rope control device according to claim ^, characterized by geke η η.: Eich η et, da.:· eir. second end ^ (^ b) of the second pipe- ■, eils (59) -with a 7eroir »iunn (ICO) for the formation of a liquid pressure. Contact with an I.uollenproduktionsanordr.unp under V / ater provided. is. 009831/1091 BATH 200173Q 5 · Wire rope lubrication device according to claim 3 or 4, characterized in that e ■ ·? indicates that the second pipe part (59) is a Drain bypass (102) for removal that can be closed via a valve (104) of liquids from the cabinet cavity. 009831/1091