Uyayazi i-RTTS packer?

Iphakethe le-RTTS:

Imininingwane Eyinhloko I-RTTSiphaketheI-r iyi-packer enkulu, elengayo ekwazi ukumelana nengcindezi yezinhlangothi zombili. Yenzelwe ngqo ukwenza imisebenzi eminingi emisebenzini efana nokuhlolwa kokwakheka, ukwenza i-asidi, kanye nokucindezelwa kwesimende, okuvumela imisebenzi ehlukahlukene ukuthi iqedwe ngohambo olulodwa. Ngakho-ke, isetshenziswa kabanzi ngesikhathi sesigaba sethu sokukhiqiza sokuhlola. Ukuqonda okuningiliziwe kwesakhiwo sayo sangaphakathi kusiza ukuxazulula kangcono izinkinga ezingase ziphakame ngesikhathi sokusebenza kanye nokugcinwa.

1. Incazelo ye-RTTS Packer

I-RTTS packer iyi-packer efakwe ngomshini, enohlobo lokushelela ehlome ngedivayisi yokunamathisela i-hydraulic. Isetshenziswa kakhulu ekuhlukaniseni i-zonal kanye nemisebenzi yokwenza i-acid, futhi ingasetshenziswa nasemisebenzini yokudonsa amanzi njengokuhlola imithombo, ukujova amanzi, kanye nokucinywa kwe-simende. I-RTTS packer iyithuluzi elikhethekile elisetshenziselwa ukuhlukanisa izindawo zikawoyela, igesi, namanzi ngaphakathi kwe-casing. Ithembele emandleni angaphandle ukucindezela i-element yerabha, ifinyeze ubude bayo futhi yandise ububanzi bayo ukuze ivale i-annulus phakathi kwepayipi kanye ne-casing. Lokhu kuhlukanisa izindawo ezingaphezulu nangaphansi kwe-packer, okwenza ifaneleke ukuhlolwa kwemithombo kawoyela negesi. Osayizi abajwayelekile bafaka phakathi u-4½″, 5″, 5½″, 7″, kanye no-9⅝″. Usayizi ngamunye uhlome nge-J-slot shifting mechanism, ama-mechanical slips, i-packing element, kanye nesakhiwo se-hydraulic anchor. I-hydraulic anchor ivimbela ukunyakaza okuphezulu kwe-packer lapho ingcindezi engaphansi kwayo iphezulu kakhulu. Lesi sici senza ithuluzi lifaneleke kakhulu ukuhlolwa emithonjeni engalingani. Amamodeli e-packer ahambisana nosayizi abahlukahlukene be-casing, okwenza kube lula ukusebenza ezindaweni ezahlukene ze-wellboats.

2. Ukwakheka Kwesakhiwo

Iphakethe liqukethe i-hydraulic anchor, i-rubber packing element, ama-slips, nama-centralizing blocks, phakathi kwezinye izingxenye.

3. Izici

a) I-hydraulic anchor ivuselelwa ngokucindezela kwamapayipi, okuvimbela ngempumelelo ukunyakaza okuphezulu kwesiphathi.
b) Ama-slip ahlukaniswe nebhulokhi yokuhudula futhi acindezelwa endaweni yekhoni lapho umphakeli esesimweni esingakamiswa.
c) Indlela yokusebenza ye-J-slot ezenzakalelayo ivumela ukusethwa okulula.
d) I-casing collar grip type slips ene-tungsten carbide inserts kanye ne-hydraulic anchor mechanism yenza kube lula ukusetha i-packer evikelekile.

4. Izinto Okucatshangwayo Ngokusebenza

a) Ngaphambi kokusebenzisa i-packer, umthombo kufanele ujikeleziswe kahle futhi uhlanzwe ukuqinisekisa ukuthi akukho mfucumfucu evimbela ukwakheka noma ukuthathwa.
b) Indlela yokusetha kufanele isebenze kahle futhi kancane. Ukuma okuphuthumayo kufanele kugwenywe ukuze kuvinjelwe ukusetha ngengozi.
c) Ukujula kokubeka kufanele kugweme ukugoba amakhola.
d) Uma ipaketha ingakhululi ngesikhathi sokulanda, intambo kufanele ithathwe futhi yehliswe ngokuphindaphindiwe iye ekujuleni kokusetha ukuze kukhishwe i-tungsten carbide inserts ngaphambi kokukhipha.

5. Izinzuzo ze-RTTS Packer

I-RTTS packer ingenye yamathuluzi asetshenziswa kakhulu ekuhlolweni kwemithombo. Ifaneleka kakhulu emithonjeni enomfutho ophansi, engenawo umoya kanye nemithombo yamafutha esindayo (imithombo engagelezi) eyonakele kakhulu ngesikhathi sokumba, ukufaka usimende, noma eminye imisebenzi. Imithombo enjalo ivame ukubhekana nokulahlekelwa okukhulu, okudinga isikhathi eside sokuhlola kanye nemijikelezo eminingi yokubuyela emuva ukuze kutholakale imingcele enembile yoketshezi kanye nokwakheka.

I-RTTS packer ivumela imisebenzi ehlukahlukene ehlanganisiwe, okuhlanganisa:
Ukuhlolwa kwe-TCP (i-Tubing Conveyed Perforating) + MFE (Multi-Flow Evaluator)

Ukuhlolwa kwe-TCP + MFE + JET (hydraulic pump discharge)

Imisebenzi ye-TCP + MFE + JET + yokwenza i-acid ibe yi-acid

I-RTTS packer kulula ukuyisebenzisa, ingabizi kakhulu, inciphisa kakhulu izindleko zokusebenza, futhi iletha izinzuzo eziqinile kwezomnotho nakwezenhlalo.

I-RTTS packer iyi-packer egcwele, elengayo esetshenziselwa ukuhlola, ukwelapha, kanye nokusebenza kokusimendela. Ezimweni eziningi, isebenza kanye ne-circulating valve assembly. Umzimba we-packer uhlanganisa i-J-slot mechansim, ama-mechanical slips, i-packing element, kanye nama-hydraulic slips. Ama-slips amakhulu, asindayo ku-hydraulic lock asiza ukuvimbela ifomu lethuluzi ukuthi liphampelwe emgodini. Emibuthweni ye-packer engu-≤ 3½″ (88.9 mm), i-drag spring isebenzisa indlela ye-J-slot, kuyilapho amabhlogo okudonsa esetshenziswa ngobukhulu obungu-≥ 4″ (101.6 mm). Zonke imizimba ye-packer ifakwe i-automatic J-sleeve njengejwayelekile. Uma kusetshenziswa i-circulating valve, iwuhlobo lwe-lock-open/lock-close futhi isebenza njenge-circulating kanye ne-bypass valve. Lapho i-packer isethiwe, i-valve ikhiya ngokuzenzakalelayo endaweni evaliwe. Ngesikhathi sokuhlola noma sokucindezela i-cement, i-lock ivimbela i-valve ukuthi iphampelwe ivuleke. Isikhala sika-J esiqondile endaweni yokuvula ngokukhiya sifana nesikhala sika-J esiqondile emzimbeni we-packer (ongakukhetha). Le nhlanganisela iqeda isidingo sokujikeleza ipayipi ukuze kuvalwe i-valve ejikelezayo noma kusethwe kabusha i-packer ngemva kokususa usimende.

Izici:

Umklamo ogcwele we-packer mandrel uvumela ukuthi kufakwe uketshezi olukhulu ethuluzini. Izibhamu ezithuthwa ngamapayipi kanye namanye amathuluzi entambo zingadluliswa ephaketheni.

I-packer ingasethwa futhi isethwe kabusha izikhathi eziningi ngokusebenzisa ukuphathwa okulula kwamapayipi.

Ama-tungsten carbide inserts anikeza ukubamba okuthuthukisiwe kanye nokumelana nokuguguleka, ikakhulukazi ekhesini elinamandla aphezulu. Indlela yokukhiya nge-hydraulic iyasebenza ngokusebenzisa ingcindezi ngepayipi.

I-valve ejikelezayo ehlanganisiwe engazikhethela ikhiya endaweni evulekile noma evaliwe ngesikhathi sokuhlolwa kokucindezelwa futhi ingavulwa kalula uma kudingeka ukuze kuvunyelwe ukugeleza kwegazi ngaphezu kwephakeji.

Ukusebenza:

Ukuze usethe i-packer, yehlisa ithuluzi kancane ngaphansi kokujula kokusetha okufiswayo, bese uphakamisa futhi ujikelezise ukujika okuningana. Uma ithuluzi liphansi, kungadingeka ukujika okuyingxenye kuphela. Kodwa-ke, emithonjeni ejulile noma ephambukile, kungadingeka ukujika okuningana kusetshenziswa ithuluzi elijikelezayo. Ukuze ugcine indawo, i-torque yesandla sokudla kumele ibanjwe kuze kube yilapho kubekwe ukushelela komshini futhi isisindo singasetshenziswa. Ingcindezi elinganiselayo kuzo zombili izinhlangothi zompaki iyadingeka ukuze kukhululwe i-packer. Lapho udonsa ipayipi, i-valve ejikelezayo ihlala ivaliwe, okuvumela ukujikeleza okungemuva ngaphansi kwe-packer. Ukuze uvule i-valve ejikelezayo ukuze kususwe umthombo, yehlisa ipayipi, jikelezisa uye kwesokudla, bese uphakamisa.
Indlela Yokusetha Nokukhulula I-RTTS Packer

Misa iphakethe bese uhambisa isivikelo sebhulokhi yokuhudula phezulu naphansi izikhathi eziningana ukuze uhlole ukuhamba kwezihibe zomshini ngaphambi kokugijima emgodini.

Ngaphambi kokungena, vala ivalvu ejikelezayo endaweni evulekile; i-J-slot nayo kufanele ibe sendaweni ekhiyiwe lapho i-lug ibambeke endaweni yokubopha i-J-slot bese ama-slips ehoxisiwe,
Ngesikhathi isebenza, indlela yokudonsa ishelela phezulu, ibeka ukushelela komshini futhi ivale ivalvu ejikelezayo. Ukuze uvimbele ukuvalwa kwevalvu ngengozi, yehlisa intambo, ujikelezise kwesokudla, uphakamise uye endaweni evulekile, bese ujikelezisa kwesobunxele ukuze uyivale—qaphela ukuthi awukhumuli ipayipi.

Uma ithuluzi lifinyelela ekujuleni okuqondiwe kokuhlola, lehlise kancane ngaphansi kokujula kokusethwa, bese uphakamisa uye endaweni yokusethwa.

Uma uphonsa phansi, phendula intambo yepayipi izikhathi eziningana uye kwesokudla—ngokuvamile kudingeka ingxenye yokujika kuphela ethuluzini.

Gcina i-torque yesandla sokudla bese ubeka isisindo kuma-slips omshini.

Yeka ukwehlisa intambo, jika ngakwesobunxele, bese ukhulula i-torque yesandla sokudla. Ngokuvamile, ingxenye yokujika ngamamitha angu-300 yanele; ungadluli inani lokujika kwesandla sokudla elisetshenzisiwe ngesikhathi sokusetha.

Uma usebenzisa i-torque yesandla sokudla, yehlisa intambo epaketheni ukuze usebenzise amandla okusetha afunekayo.

Ukuze uvule ivalvu ejikelezayo futhi ugcine ukulawula komthombo, jikelezisa intambo ngakwesokudla bese uphakamisa; cindezela phezulu epayipini bese uqhubeka nokuphakamisa kuze kube yilapho ukujikeleza kwegazi kufinyelelwa. Bamba lesi simo, faka uketshezi, bese ulula kuze kube yilapho ukucindezela kuphuma, uvumele ithuluzi ukuthi lithathe isisindo. Jikelezisa ngakwesobunxele ukuze ukhulule i-torque, bese uqhubeka nokunciphisa isisindo kuze kube yilapho iphakethe liqiniswa ngamandla adingekayo.

Ukuze uqedele ukuhlolwa bese ukhulula iphakethe, qala ngokulinganisela ingcindezi kulo lonke iphakethe, bese udonsa intambo ngaphandle kokujikeleza ukuze ugcine ivalvu ejikelezayo ivaliwe bese usungula ukujikeleza okuphambene eduze kwephakethe.

Yehlisa ipayipi, phendula intambo, bese uyiphakamisa ukuze uvule ivalvu ejikelezayo. Ithuluzi lingakhishwa emgodini.

Iwebhu: www.landrilltools.com