Spar­rows Group awarded con­tract for two 500-tonne un­der-rollers

DEMM Engineering & Manufacturing - - PETROCHEMICAL -

Spar­rows Group, and its ca­ble and pipe-lay so­lu­tions (CPLS) divi­sion, re­in­forced its in­ter­na­tional foot­print in the United States af­ter be­ing awarded a con­tract by Ocea­neer­ing In­ter­na­tional, Inc. (Ocea­neer­ing), a global provider of en­gi­neered ser­vices and prod­ucts to the off­shore oil and gas in­dus­try, to de­sign and man­u­fac­ture two 500-tonne pow­ered and jack-able un­der-rollers.

The new un­der-roller sys­tem, through its ver­sa­til­ity and mo­bil­ity, of­fers a wide range of ben­e­fits. Suit­able for use with reels of up to 11.4m outer di­am­e­ter, it pro­vides up to 10 tonnes of line pull at the outer reel di­am­e­ter which is par­tic­u­larly ben­e­fi­cial for steel-tubed um­bil­i­cals – a more rigid prod­uct that re­quires greater ef­fort to spool around the reel.

Key to Spar­rows Group se­cur­ing the con­tract is the com­pany’s in-house en­gi­neer­ing ex­per­tise and fa­cil­i­ties in Aberdeen where the un­der-rollers are to be de­signed and man­u­fac­tured be­fore un­der­go­ing test­ing. The un­der-rollers will then be de­liv­ered to Ocea­neer­ing in Panama City where Spar­rows Group will per­form the as­sem­bly and site ac­cep­tance test­ing.

Lo­cal af­ter-care sup­port for the un­der-rollers will be sup­plied by Spar­rows Group’s ser­vice cen­tre in Slidell, Louisiana, where the com­pany has a num­ber of spe­cial­ist tech­ni­cians with the ca­pa­bil­ity to main­tain and re­pair this type of equip­ment.

Spar­rows Group chief ex­ec­u­tive of­fi­cer, Ste­wart Mitchell, said: “This con­tract award marks a sig­nif­i­cant mile­stone for Spar­rows Group in that not only are the un­der-rollers be­lieved to be the first of the de­sign and ca­pac­ity in the mar­ket­place but it un­der­lines the added value we bring through our in­te­grated ser­vices, re­spon­sive­ness and af­ter-care sup­port.”

The com­plete un­der-roller unit, when at­tached to a set of cra­dles, can be lifted via four lift­ing points. With pack­ing struc­tures for dif­fer­ing reel di­am­e­ters the sys­tem can be used for dif­fer­ing reel cra­dles. This en­ables the unit to be ver­sa­tile in terms of the reel di­men­sions it can be used with.

Both the drive and idler units can be in­di­vid­u­ally moved to the lo­ca­tion of the reel and cra­dles. The units can then be fas­tened to the cra­dles and with the use of hy­draulic cylin­ders, the idler wheels can push against and un­der the reel – ef­fec­tively lift­ing the reel off of the cra­dle which al­lows the drive wheel to ro­tate the reel to spool or un­spool the prod­uct. Once the spool­ing op­er­a­tion is com­plete, the idler wheel can re­tract to lower the reel back onto the cra­dles which means that the drive and idler wheel units can be un­bolted and moved to an­other reel and cra­dle on site for fur­ther op­er­a­tion.

“The un­der-roller de­sign re­sults in a more time and cost-ef­fec­tive sys­tem which im­proves the ef­fi­ciency of op­er­a­tions,” said Mitchell. “Fur­ther, the f lex­i­bil­ity in de­sign en­ables the user to re­duce the num­ber of heavy lift­ing op­er­a­tions on site by mov­ing the un­der-roller to the reel in­stead of mov­ing the reel to the lo­ca­tion of and onto the un­der-roller. This max­imises pro­duc­tion time and spool­ing op­er­a­tions if the reels are lo­cated at favourable lo­ca­tions for spool­ing ac­tiv­i­ties prior to un­der­tak­ing op­er­a­tions.

“The wheel drive and idler units can also be trans­ported by fork­lift pock­ets built into the wheel unit frames – from ei­ther the side or the end of the unit – to al­low fork­lifts to po­si­tion the wheel units in more con­fined spa­ces at the client’s fa­cil­ity as well as for speed of re­lo­ca­tion with­out the use of a crane.”

Each of the two 500-tonne un­der-roller sys­tems in­clude two drive car­riages, two idler/lift car­riages and two spreader beams, one hy­draulic power unit and one re­mote con­trol unit as well as one lift­ing sling set and a set of in­ter­con­nect­ing 15 me­tre deck hoses.

Spar­rows Group’s un­der-roller is be­lieved to be the first of the de­sign and ca­pac­ity in the mar­ket­place.

Newspapers in English

Newspapers from New Zealand

© PressReader. All rights reserved.