I-Permanent Packer ne-Retrievable Packer

Isipakishi Esihlala njalo

Izakhiwo ezithathwa njengezihlala njalo zikhishwa kumithombo yamanzi ngokugaya. Lezi zingokwakhiwa okulula futhi zinikeza izinga lokushisa eliphezulu nezilinganiso zokusebenza kwengcindezi. Idayamitha yangaphandle encane yamayunithi angunaphakade inika amandla imvume yokugijima ephezulu ngaphakathi kweyunithi yezinhlamvu yekesi. Ukwakhiwa okuhlangene kubavumela ukuthi baxoxisane ngezingxenye ezincane kanye nokuchezuka okutholakala emgodini womthombo. Ububanzi bawo obukhulu bangaphakathi bubenza bafaneleke ukusetshenziswa nezintambo zamashubhu ezinobubanzi obunyukile kanye nokuqedwa kwe-monobore.

Asebenza futhi asethwe kusetshenziswa izintambo zikagesi, amapayipi okubhoboza, noma amashubhu. Uma sekusethiwe, izinto zimelana nokunyakaza okuvela kunoma iyiphi indlela. Izilungiselelo zocingo zidlulisa amandla kagesi ukuze usethe ipakeli ngokuqhunyiswa kweshaje eqhumayo. Khona-ke i-stud yokukhulula ihlukanisa umhlangano kusuka kumpakishi. Izakhi ezihlala njalo zilungele imithombo enomfutho ophezulu noma ukuhluka komthwalo wamashubhu.

Isipakishi Esitholakalayo

Amaphakethe abuyiselekayo ahlanganisa kokubili amamodeli avamile wengcindezi ephansi/ithempelesha ephansi (LP/LT) kanye namamodeli anzima kakhulu wokucindezela okuphezulu/ukushisa okuphezulu (HP/HT). Le mikhiqizo ibiza kakhulu kunezakhiwo ezihlala njalo ezinikeza ukusebenza okuqhathanisekayo ngenxa yobunkimbinkimbi bedizayini yayo lapho kusetshenziswa amathuluzi athuthukile. Kodwa-ke, izici ezifana nokukhululeka kokususwa kwe-packer wellbore kanye nokusetshenziswa kabusha zisebenzela ukwehlisa inkomba yezindleko.

Imikhiqizo iphinde ihlukanise ibe yizinhlobonhlobo zezinhlobo, okuhlanganisa:

Ukusetha ngomshini: Ukusetha kwenziwa ngokuhambisa amashubhu kolunye uhlobo. Lokhu kufaka phakathi ukunyakaza okuzungezayo noma okuya phezulu/phansi. Ngaphezu kwalokho, umthwalo uhilelekile ekusetheni amayunithi njengoba isisindo seshubhu sicindezela noma sandisa isici sokuvala. Ukudonsa intambo kukhulula izinto. Lezi zivame kakhulu emithonjeni engajulile, eqondile enomfutho ophansi.

I-tension-set: Izinto zokupakisha zaleli klasi zisethwa ngokudonsa ukungezwani okubekwe kushubhu. I-Slack isebenzela ukukhulula into. Asebenza kahle kakhulu emithonjeni engashoni enokwehluka kwengcindezi emaphakathi.

Isethi yokuzungezisa: Lezi zisebenzisa ukuzungezisa kweshubhu ukusetha nokukhiya ingxenye.

I-Hydraulic-set: Lesi sigaba sisebenza ngomfutho we-fluid oshayela ikhoni endaweni ngemuva kweziliphu. Ngemva kokusetha, kungaba isikhiya semishini noma ukucindezela okubanjiwe kuzigcina zinganyakazi. Ukuthatha ishubhu kushayela umsebenzi wokukhipha.

I-Inflatable: Ekwaziwa nangokuthi ama-elementi angavuvukala, lezi zingxenye zithembele ekucindezelweni kwamanzi ukuze zivuthele amashubhu angama-cylindrical ukuze awasethe. Atholakala ekuhlolweni kwemigodi evulekile lapho kubholwa imithombo yokuhlola kanye nesiqiniseko sikasimende ekukhiqizeni imithombo. Afanele futhi imithombo lapho abapakishi kudingeka badlule lapho kuvimbelwe khona ngaphambi kokubeka ububanzi obukhulu kakhulu kuma-casings noma izimbobo ezivulekile.

Ukubheka okuningiliziwe kwezinye izinketho ezidumile kulandela ngezansi:

Izinto zepakethe ye-tension ezibuyiselekayo zisekela ukukhiqizwa okuphakathi nokujula okungajulile noma ukusebenza komjovo. Lawa anesethi yeziliphu ezingaqondisiwe ezibamba i-casing nje ezimeni ezinomthwalo we-tension ku-tubing. Izinga lokushuba kweshubhu linika amandla izinto. Lesi sigaba sisethwa ngomshini futhi sikhishwe nge-tube rotation. Iningi lamamodeli liza nokukhishwa kwe-shear okuphuthumayo uma kwenzeka indlela yokuqala yokukhishwa yehluleka.

Amaphakethe we-tension ayasebenza ezimeni lapho ingcindezi engaphansi iphezulu ngaso sonke isikhathi kune-annulus pressure etholakala ethuluzini. Le ngcindezi ekhuphukayo iphoqa izinto ukuthi zihlangane ukuze kugcinwe ukushuba.

Izinto zokupakisha ezicindezelayo ezibuyiselekayo ezine-fluid bypass zilungele ukucindezela okuphansi nokuphakathi kukawoyela kanye nezindawo zokumba igesi emazingeni okushisa aphakathi nendawo. I-interlock yomshini igcina ingxenye ekumisweni. Ngenkathi igijima emgodini, ukuzungezisa kweshubhu kwenza i-elementi isebenze. Hudula amabhlogo atholakala entweni ibambe endaweni futhi unikeze ukumelana okudingekile ukuze ukusethe. Lapho i-interlokhi ikhululwa, ukwehliswa kwentambo yeshubhu kuvumela ukuvala uphawu lwe-bypass kanye nokusetha iziliphu. Ukusebenzisa amandla okuxega okuqhubekayo kudala uphawu ngokunika amandla imikhiqizo. Ukukhululwa kufezwa ngokumane udonsele phezulu kuchungechunge lweshubhu.

Le nketho inamandla akhethekile okumelana nezingcindezi ezikhulisiwe kanye namazinga okushisa kunezinye izindlela zokucindezela. Ivalvu yokudlula ithuthukisa amandla ompakishi ukuze alinganise izingcindezi ezitholakala kushubhu kanye ne-annulus futhi yenza kube lula ukukhulula okokusebenza. Ukucindezelwa okuqhubekayo noma isisindo seshubhu siyadingeka ukuze kuqinisekiswe ukuthi i-valve ye-bypass ihlala ivaliwe. Lokhu akufanelekile emithonjeni yomjovo noma imisebenzi yokwelapha umfutho wevolumu encane.

Ukudonsa/ukuminyanisa okubuyisekayo kuphromotha ukufika kweshubhu ku-tension, compression, noma neutral. Lawa amayunithi avame ukusethwa ngomshini namuhla. Zinohlu olubanzi lokucushwa kwengcindezi, ukuminyanisa, noma inhlanganisela yakho kokubili ukusetha nokupakisha entweni. Ukukhethwa kwamasistimu nezilinganiso ezihlukanisiwe kuzenza zibe usizo ezinhlobonhlobo eziningi zezimo. Ngalawa masethi, amandla anika amandla akhiyelwe ngaphakathi ngomshini wokukhiya wangaphakathi kuze kube yilapho iyunithi ikhishwa ngevalve yokudlula. Le valve isiza nasekulinganeni.

Lawa madivaysi ahlukahlukene kakhulu kunezinye izixazululo futhi akhona kuzo zombili izimo zokukhiqiza nokujova.

Izakhiwo ezihlala njalo nezibuyiselekayo ze-sealbore zibekwe ngezintambo zikagesi noma ama-hydraulic entanjeni yeshubhu. Ukusetha ngocingo kunikeza isivinini esikhulu nokunemba kuyilapho izinketho zokusetha i-hydraulic zohambo olulodwa zihlomula ekufakweni kwephasi eyodwa. Benza lula inqubo yokumisa ngama-wellheads apendwe phezulu. Lokhu kuhlukaniswa kufaka ama-sealbore angaphakathi aphucuziwe. I-tubing seal ehlanganisa ukupakishwa kwe-elastomeric yenza uphawu oluxhuma ishubhu lokukhiqiza kanye ne-packer bore. Ukuma kwezimpawu ze-elastomeric ku-bore kudala ukuhlukaniswa komthombo.

Uhlobo lokuhlanganiswa kwendawo luvumela ukunyakaza kwe-seal ngesikhathi sokukhiqiza nokwelapha. Uhlobo lokuhlanganisa i-anchor luvikela ama-seals ngaphakathi kwe-packer bore ukuze kukhawulwe ukunyakaza kwamashubhu.

Izixazululo ezihlala njalo ze-sealbore zinikeza ukusebenza okuthuthukisiwe kunezingxenye ezitholakalayo. Zinobunzima obukhulu ekwakhiweni okubenza babize kakhulu.

Njengomunye wemishini ebaluleke kakhulu ekuqedeni, amapaki anzima kakhulu ukuwakhiqiza ngobuchwepheshe. Amaphakethe we-Vigor akhiqizwa kusetshenziswa inqubo yokukhiqiza efakazelwe kakhulu futhi ahlala elawulwa ngokuhambisana ngokuqinile nezindinganiso ze-API11D1 phakathi nenqubo yokukhiqiza. Kungenxa yokulawulwa okuqinile kwe-Vigor kwenqubo ukuthi ikhwalithi yomkhiqizo ihlala idlula okulindelwe ngamakhasimende, uma unentshisekelo ngemikhiqizo yemishini yokugawula ye-Vigor yokumba nokuqedela, sicela ungangabazi ukuxhumana nethimba lezobuchwepheshe le-Vigor ukuze uthole okungcono kakhulu. imikhiqizo namasevisi asezingeni eliphezulu.

Ukuze uthole ulwazi olwengeziwe, ungabhalela ibhokisi lethu lemeyiliinfo@vigorpetroleum.com&marketing@vigordrilling.com