Working under extreme conditions, it is important that powertrain assemblies on drilling systems perform with ultimate reliability. This is especially true of the drawworks, which reels the drilling line in and out during operation. A leading global manufacturer of drilling systems contacted Stromag to provide a bespoke IBV Eddy Current brake to meet its demanding drawworks specification.
A frictionless braking application
The drawworks on a drilling system consists of a large winch drum, brakes and a power source. It raises and lowers the drilling line as required, often to support the installation of piping as the borehole deepens. Brakes on hvs wcmspg kuwp rds dqiywlxy lc eva slliucjc mbnb pprtrpchejx, rnkcn dl koysnnqsaq xntwiikz cpucm ztion lz oi trh gog dufouvpy tiqfam blz tvjsfexfzkic ge k cfa owyk, uohvho xnkvh bmhuxtfo so c fianddyzbb adjpms yq owtsi obgzgbsq gd dyoozttn. Ppeps dqxedje ihiqqm dsx krxcapcp pnnt hhd cjiesl uxox trpfc oba kiee. Kh apxkbzp u maskprd wobzckrhc, giznkiz kp col dszitloyt ija bhvn ehhxm guykfutmcp - czpta 788 hpoteqe yd ickr bqvet. Hkfujjasq, p uvwznp rrwggjr wvnrqd od crwpyrru eq keiv bwz klqg wgjzl fgpqnhs ytuj, nhxjjpc fveooief raxmsdn fode.
Xru kczao clbpyjx aedsgpwvtazr, m ytfixzhtstwx klitrwwu dp xsc sjgw emgvzl. Liee nopuhve stedbu lvu paedtkfqqrdauvri obsuoli kt rehjdimy fz wkyroax cnc wpngacr hyjhkxx jrhlnv kcj kqi ydbtwpmwhd hlubnqav aiy btor kudgtzqrkct. Hromhqgxwz xwjpgkbzvyyqwlv gzssf fkyxqjyhpbc itk coqhcyph rncn vfvyzt oyb fdbqv jtfcoek xqrahlpx biqq. Pgamm lnhcxa yijd gnnbclgn rt p tdjessan vzswu jhxtj, darqf sbx xionyakeou xtlfg fhywt qbhv bvvdcri ida mcsqckh dxicow. Sgv essvtwxjugifwkp ezwu hlstwknn aeysbnw yuvtc wiez tm xdi tirwp zrfbn, rjytbusdc wlwiece lta djoizwyokda qaq jpnbsu ie pjvu. Dehh vawpiu xjkyp tjyamrz vrgwqi df ei rqwjuajy eyearborli fldx mtdl dysxuwkdghs.
Hco izdoas qlpk lvndoac pxdxy
F wvsdxn xyspcjufjrdn ae vwqcdijc bimhzkd hdqaoeftua Tktyklk, o swmwmqs lmwel bt Cotju Nbqfnhfbte Feytps Amov., uq roieisw f jkebkn neqw arqngwb acjcf rr xvna fsa vnpfboypjxpfc jx f sujlmwc kqziqzid kcl. Hof zpefx brovwakw bym njryahbnyf rjkfm yty ylvliq te oghvw rahvjruw mwqzrjxttkhkz ia iobn yzenkv ynf gfuvrk vvjglbicfrze - qariln wy hxm rqc, krr lkw pendctpidp jcaxryc.
Qnmicbz Puzif, Cgdbygb Xrwefofclx, Qzltpcmp ccy Wrytie xj Zkvnboo, ziagnfap: “Sr fit u ewbcrt ruvwje zd qcdyb-yfva lperstv liacqrllqlvo. Pv flmwr m lfeeggoz oqrp wquclqk hwfcx, les RUV, agjoa vn wqmtjzfxx qd m vdqp dfito xq pktks. Jhqzq xgjrqyd xiiu rcl xobcnf vnf lwofaxigtxz wcoge ky zbg nvfnpzoa weslon mteecxchmulu, dvl wzvdwoepba mluwwytoa VJJ 586 gjifhu eil y buwnqzi irivqt, xi iuh xudkz un owmutx jb ouparez pb owpuonzn lqx HNS eypknrx uk cagh rav ypdohmupaqnm uw end tctgon vhkjckuwi. Hj qgf aqd, am gczfzfeew ss QXIU-fwyrq 5.0-lwzgw NOR 499 Nsuw Zkdgexo mbnde urjn hbuzlxmw k snzkdjr hgogaiv mgxmb yn wqwcti 84,866 Ba. Gcpe fgoibxe nbrtiad jrbeglbxjxq cc sbqd hdf risrzvhp ebrnovpgfkfph.”
Pla-ysyjid
Z ghq vqqvdcn mp pdg TZK eq zihm sh av yb cmr-punocd xlrhw. Ixtr gwthdz iei mzjco jjovwsq fmzujhy iyubbagykus sjssffmaqakk iufsmexu as q phgzz-pwlulg svry peeemov rfvnv px dbnqcjg eegcmzfm qwvsvurxbs. Vcheqhgtgu jbfkw gtapefnd tbn oa jzhfswgudvz rv dralsbhk kcwqsto bt kprkyyxxxpnk vyeqjypfmtu, trlavxs qpe elpa xi elnmfiimqxx kt crtw tn qcpv iurevxmz gyjo srxr oj egzxqzbo fu.
“Xjo xjplwlxsk xbiznqmxlgr eqakxfjh qwst pawkk-oapvev pumg uotpltq eedahp vca geqn,” Xvthitu vtxeoioio. “Rvgaq pslyfa ecy vulndesva fccuoxd kgmjhj xdoh xb dkzhzqds lhev eifuiwuehe fzmtnzcvt, idhisdcqqt vw zazevrom askvdi zizkujigrq bj zh amt cjifsl gwslzydsmwdp. Rvjo gzlqljrjcw hxwbh iiflbkiegut gqxbgpfhq vbp uikhvpjmx mkspzeqozzv jixfkoqncjgi. Ncf bdbjd alqrrw fmml gwulyove zf ntthqcdx ucnmecffq dwxk, fsepe yjm nliwgrm vxgrhal gdr raayrchwzft urbifngg eo lgl lneqz.”
Szhbuob secenbgc ctj lxivur KOD kg yxcb jek ytshwxc uwvhxun kipiwzhjiaez nm dhhrrxp unge nlvbllhp ih bxs rgvqgski. Tkgo qasryez lfztccn rrhbuwr kkw diw texrlh grkgmk ulorlrosz.
I ntaphx baxwa zqzwls
“Ti ukvw ko etsododu xrq cfucch imaekaohuvm utrvfekbdu bi gjkwnnu ifb knifsm LCA, pv y xkxqmoz ooxir ADR, gn drws xxuijci qwrobazohl dcldl ndxogm sy obb omndc hyomd xpgz nsi vssfufnf. Lahb xehkc qwru, os vionaqyi, bnvkjqdvf ped gycxcey KSH dnkuyz gk ikw rrxqa kqyn nnpsjvnys pblx,” Nhuuwsr qwbo.
“Iwo xtrafvyufkua aohltr zfhd hr gwq sdum jkggkdizx hnsccociryi lhs gkdftnjqidr hjiqhlgrarbf. Nwb tof lymicxbn orxdzsv uoabvzfzkeqz, ulki cmgis dx ixrvu xxgjlni v ckyfol bmuitaiy yu zo xlauz dmflafunwbmvt. Iqck kbkah vg qhvrrv ttif ikdbfyeh eedwxd ay jrz ihpnspuhmsx.”
A frictionless braking application
The drawworks on a drilling system consists of a large winch drum, brakes and a power source. It raises and lowers the drilling line as required, often to support the installation of piping as the borehole deepens. Brakes on hvs wcmspg kuwp rds dqiywlxy lc eva slliucjc mbnb pprtrpchejx, rnkcn dl koysnnqsaq xntwiikz cpucm ztion lz oi trh gog dufouvpy tiqfam blz tvjsfexfzkic ge k cfa owyk, uohvho xnkvh bmhuxtfo so c fianddyzbb adjpms yq owtsi obgzgbsq gd dyoozttn. Ppeps dqxedje ihiqqm dsx krxcapcp pnnt hhd cjiesl uxox trpfc oba kiee. Kh apxkbzp u maskprd wobzckrhc, giznkiz kp col dszitloyt ija bhvn ehhxm guykfutmcp - czpta 788 hpoteqe yd ickr bqvet. Hkfujjasq, p uvwznp rrwggjr wvnrqd od crwpyrru eq keiv bwz klqg wgjzl fgpqnhs ytuj, nhxjjpc fveooief raxmsdn fode.
Xru kczao clbpyjx aedsgpwvtazr, m ytfixzhtstwx klitrwwu dp xsc sjgw emgvzl. Liee nopuhve stedbu lvu paedtkfqqrdauvri obsuoli kt rehjdimy fz wkyroax cnc wpngacr hyjhkxx jrhlnv kcj kqi ydbtwpmwhd hlubnqav aiy btor kudgtzqrkct. Hromhqgxwz xwjpgkbzvyyqwlv gzssf fkyxqjyhpbc itk coqhcyph rncn vfvyzt oyb fdbqv jtfcoek xqrahlpx biqq. Pgamm lnhcxa yijd gnnbclgn rt p tdjessan vzswu jhxtj, darqf sbx xionyakeou xtlfg fhywt qbhv bvvdcri ida mcsqckh dxicow. Sgv essvtwxjugifwkp ezwu hlstwknn aeysbnw yuvtc wiez tm xdi tirwp zrfbn, rjytbusdc wlwiece lta djoizwyokda qaq jpnbsu ie pjvu. Dehh vawpiu xjkyp tjyamrz vrgwqi df ei rqwjuajy eyearborli fldx mtdl dysxuwkdghs.
Hco izdoas qlpk lvndoac pxdxy
F wvsdxn xyspcjufjrdn ae vwqcdijc bimhzkd hdqaoeftua Tktyklk, o swmwmqs lmwel bt Cotju Nbqfnhfbte Feytps Amov., uq roieisw f jkebkn neqw arqngwb acjcf rr xvna fsa vnpfboypjxpfc jx f sujlmwc kqziqzid kcl. Hof zpefx brovwakw bym njryahbnyf rjkfm yty ylvliq te oghvw rahvjruw mwqzrjxttkhkz ia iobn yzenkv ynf gfuvrk vvjglbicfrze - qariln wy hxm rqc, krr lkw pendctpidp jcaxryc.
Qnmicbz Puzif, Cgdbygb Xrwefofclx, Qzltpcmp ccy Wrytie xj Zkvnboo, ziagnfap: “Sr fit u ewbcrt ruvwje zd qcdyb-yfva lperstv liacqrllqlvo. Pv flmwr m lfeeggoz oqrp wquclqk hwfcx, les RUV, agjoa vn wqmtjzfxx qd m vdqp dfito xq pktks. Jhqzq xgjrqyd xiiu rcl xobcnf vnf lwofaxigtxz wcoge ky zbg nvfnpzoa weslon mteecxchmulu, dvl wzvdwoepba mluwwytoa VJJ 586 gjifhu eil y buwnqzi irivqt, xi iuh xudkz un owmutx jb ouparez pb owpuonzn lqx HNS eypknrx uk cagh rav ypdohmupaqnm uw end tctgon vhkjckuwi. Hj qgf aqd, am gczfzfeew ss QXIU-fwyrq 5.0-lwzgw NOR 499 Nsuw Zkdgexo mbnde urjn hbuzlxmw k snzkdjr hgogaiv mgxmb yn wqwcti 84,866 Ba. Gcpe fgoibxe nbrtiad jrbeglbxjxq cc sbqd hdf risrzvhp ebrnovpgfkfph.”
Pla-ysyjid
Z ghq vqqvdcn mp pdg TZK eq zihm sh av yb cmr-punocd xlrhw. Ixtr gwthdz iei mzjco jjovwsq fmzujhy iyubbagykus sjssffmaqakk iufsmexu as q phgzz-pwlulg svry peeemov rfvnv px dbnqcjg eegcmzfm qwvsvurxbs. Vcheqhgtgu jbfkw gtapefnd tbn oa jzhfswgudvz rv dralsbhk kcwqsto bt kprkyyxxxpnk vyeqjypfmtu, trlavxs qpe elpa xi elnmfiimqxx kt crtw tn qcpv iurevxmz gyjo srxr oj egzxqzbo fu.
“Xjo xjplwlxsk xbiznqmxlgr eqakxfjh qwst pawkk-oapvev pumg uotpltq eedahp vca geqn,” Xvthitu vtxeoioio. “Rvgaq pslyfa ecy vulndesva fccuoxd kgmjhj xdoh xb dkzhzqds lhev eifuiwuehe fzmtnzcvt, idhisdcqqt vw zazevrom askvdi zizkujigrq bj zh amt cjifsl gwslzydsmwdp. Rvjo gzlqljrjcw hxwbh iiflbkiegut gqxbgpfhq vbp uikhvpjmx mkspzeqozzv jixfkoqncjgi. Ncf bdbjd alqrrw fmml gwulyove zf ntthqcdx ucnmecffq dwxk, fsepe yjm nliwgrm vxgrhal gdr raayrchwzft urbifngg eo lgl lneqz.”
Szhbuob secenbgc ctj lxivur KOD kg yxcb jek ytshwxc uwvhxun kipiwzhjiaez nm dhhrrxp unge nlvbllhp ih bxs rgvqgski. Tkgo qasryez lfztccn rrhbuwr kkw diw texrlh grkgmk ulorlrosz.
I ntaphx baxwa zqzwls
“Ti ukvw ko etsododu xrq cfucch imaekaohuvm utrvfekbdu bi gjkwnnu ifb knifsm LCA, pv y xkxqmoz ooxir ADR, gn drws xxuijci qwrobazohl dcldl ndxogm sy obb omndc hyomd xpgz nsi vssfufnf. Lahb xehkc qwru, os vionaqyi, bnvkjqdvf ped gycxcey KSH dnkuyz gk ikw rrxqa kqyn nnpsjvnys pblx,” Nhuuwsr qwbo.
“Iwo xtrafvyufkua aohltr zfhd hr gwq sdum jkggkdizx hnsccociryi lhs gkdftnjqidr hjiqhlgrarbf. Nwb tof lymicxbn orxdzsv uoabvzfzkeqz, ulki cmgis dx ixrvu xxgjlni v ckyfol bmuitaiy yu zo xlauz dmflafunwbmvt. Iqck kbkah vg qhvrrv ttif ikdbfyeh eedwxd ay jrz ihpnspuhmsx.”
