I-Cased-I-Hole vs Openhole: UziSebenzisa nini iiLiner eziSlothiweyo okanye iMibhobho eQityiweyo

Namhlanje sisihloko esiqhelekileyo "sokuthenga okungalunganga / ukusebenza kakubi / phinda usebenze kamva" kwisiza:Casingvs. Slotted Casing Extension vs. Perforated Pipe -ngowuphi owona mahluko?

Mhlawumbi ukhe weva ezi ngaphambili:

Yonke nje ipayipi enemingxuma, akunjalo?
Iindawo zokubeka kunye nemingxunya zombini zivumela ulwelo lungene-nokuba lusebenze.
Masiqhube nje ulwandiso lwe-casing slotted apho kwaye songe ixesha kamva.

Zivakala zisengqiqweni, kodwa kulapho kanye ziqala khona iimpazamo ezibiza imali eninzi. Ezi zintathu zinokubonakala zifana, kodwa zakhelwe imisebenzi eyahlukeneyo. Ziphathe njengento enye kwaye ungagqibela ngokusantiya, ukuplaga, ukuqhuba -kwimiba, okanye iphupha elibi lokuthenga{3}}amaxwebhu kunye nokwamkelwa okungahambelani noko kufunwa yiprojekthi.

Masicace ukuba nganye nganye yeyantoni

Casing: "umqolo" wequla. Inkxaso yesakhiwo, ukunyaniseka koxinzelelo, ukuhlukaniswa kwendawo, kunye nesiseko se-cementing. Ayilwanga njengenxalenye yokungena.
Ukwandiswa kweCasing Slotted (Slotted Liner/Extension): indlela yokungena enomda wogcino lwesanti. Izinto eziguquguqukayo eziphambili bububanzi be-slot kunye nepateni yokubeka.
Umbhobho oQhutyiweyo (Umgca oGciniweyo): indlela yokungena emingxunyeni. Izinto eziphambili eziguquguqukayo ziyi-diameter yomngxuma, i-pitch pitch / iphethini, kunye nommandla ovulekileyo; ulawulo lwesanti luxhomekeke kwisicwangciso esipheleleyo sokugqitywa, hayi umbhobho onemingxuma wodwa.

Itheyibhile inika isiphelo: Yintoni eSonjululwa ngumntu Ngamnye

Into	Casing	Isolulo seCasing eSlothiweyo (Ilayini eSlotyolweyo/Isolulo)	Umbhobho oGqithiweyo (Ilayini eGqiweyo)
Umsebenzi ophambili	Inkxaso yesakhiwo se-Wellbore, ukwahlukaniswa kwendawo, isithintelo soxinzelelo, isiseko sesamente	Ibonelela ngokungena ngelixa usebenzisa ubungakanani beslot ukuze "ubambe" isanti ethile (ulawulo lwesanti olulinganiselweyo)	Ibonelela ngokungena ngemingxuma; inokwenza lula ukugqibezela okanye ivumele ukungena kwendawo
Indawo eqhelekileyo	Amacandelo apheleleyo / iintambo zecasing by interval	Isoloko isetyenziswa ngapha komngxuma ovulekileyo/izithuba ezingenazihlangu njengelayini/ulwandiso	Isetyenziswe kumathuba athile okungena; ngamanye amaxesha ithathwa njengenye icandelo lokungena
Ulawulo lokungena	Ngokuqhelekileyo kuxhomekeke kwi-perforating kamva / izixhobo zokugqiba	Ukuphenjelelwa bububanzi be-slot + ipateni yokubeka + indawo evulekileyo	Ukuphenjelelwa sidayamitha somngxuma + umngxuma pitch/ipatheni + indawo evulekileyo
Ulawulo lwesanti	Akukho nanye	Unyino; ixhomekeke ekuthelekiseni slot ububanzi ukuya kwisanti yokwakheka	Ngokubanzi buthathaka kuneendawo zokubeka kwindawo evulekileyo efanayo; ihlala ifuna imilinganiselo eyongezelelweyo
Imingcipheko ephambili	Ukungaphumeleli kokwahlukaniswa / ingqibelelo kunye nemiba yokwamkelwa	Ububanzi besithuba esingalunganga → ukuplaga okanye ukugalela isanti; slot burrs/edges → baleka-kwimiba kunye nelahleko yoxinzelelo	Uyilo lomngxuma olulambathayo → sanding/ukhukuliseko; umngxuma burrs/edges → baleka-kwimiba
Ingqiqo yokugqibezela	Imfezeko nolwamkelo oluqhutywayo	Ukungena + ukugcinwa kwesanti ekhanyayo kuqhutywa	Uyilo lwendlela yokungena iqhutywa

Inqaku eliphambili:Kwi cased-izicelo zomngxunya, ukuxhomekeka kwiscreen/kwicandelo elifakwe njengesanti kuphela{1}}umlinganiselo wolawulo unokuba yingozi enkulu, kubai-annulus/i-perforations inokugcwala isanti kwaye inciphise imveliso; sivavanye kwisicwangciso esipheleleyo sokugqiba.

Kutheni benokuthi bonke "bavumele ulwelo ukuba lungene," kodwa iziphumo zentsimi ziyahluka?

1. Kuba uhlobo lokuvula (imingxuma vs. iindawo zokubeka) lutshintsha izinto ezintathu: ukuplaga vs. uvakalelo lwesanti, ubomi bokhukuliseko, kunye nokubaleka{3}}kumngcipheko.

Ukuplaga vs. sanding: ubungakanani obungalunganga bokuvula bubangela ukusilela okuchaseneyo
Ububanzi be-slot / umngxuma ububanzi buncinci kakhulu: umngcipheko ophezulu wokuplaga, ukwehla koxinzelelo oluphezulu, ukwehla kwemveliso (ngamanye amaxesha iqala "ilungile" kwaye ithobe ixesha elide).

Kukhulu kakhulu: umngcipheko ophezulu wesanti, ukhukuliseko olusezantsi, kunye nomonakalo kwiivalvu / iimanifolds kunye nezinye izixhobo.

Iindawo zokubeka zihlala zikhethelwa "ukugcinwa kwesanti ekhanyayo" kuba ububanzi bendawo bunokusebenza njengesikali sokuhluza. Kodwa "iselula" ulawulo lwesanti, hayi inkqubo yolawulo yesanti epheleleyo.

2. Ukhukuliseko: imiphetho ziindawo ezibuthathaka
Kumazinga aphezulu aneziqina kunye nokutsalwa phantsi okuphezulu, zombini i-slot edges kunye nemiphetho yemingxuma inokukhukuliseka. Indawo evulekileyo ephezulu ayizenzekeli ngcono. Ubomi bokhukuliseko kunye nomgangatho womphetho (ukukhutshwa, ukugqitywa komphetho, ukucocwa) kufuneka kuhlaziywe kunye noyilo lokungena.

3. Baleka{1}}emngciphekweni: uninzi "alunakukwazi ukuyiqhuba" imiba ivela kulawulo olungalunganga lomatshini.

Ukuba i-burrs, deformation, okanye ukucocwa akulawulwanga emva kokufaka i-slot / perforating, unokubona:

ukuxhoma-ngexesha lokubaleka{1}}ngaphakathi
drift/ID ukusilela
deformation yendawo ithintela izixhobo ezilandelayo

Yingakho iiprojekthi ezilungileyo aziceli kuphela "iiparamitha zokuvula." Baphinde bacele iirekhodi zokwamkelwa (i-drift / i-ID checks, iingxelo ze-dimensional) kunye nendlela ukuvulwa kwagqitywa ngayo. Kwiiprojekthi ze-Octal Pipe, ezi zinto ziqhele ukulungelelaniswa kwangethuba{2}}imilinganiselo evuliweyo kunye noyilo, ukugqitywa komphetho, ukukhukuliseka/umlinganiselo weerekhodi, kunye nephakheji yamaxwebhu ahambelanayo{3}}ukuze isayithi ingagqibi ukulungisa imiba ethintelekayo.

perforated casing hole pattern close-up-octal pipe cased hole sand control flow path illustration-octal pipe

Iimpazamo ezintathu zokukhetha eziqhelekileyo

Imeko A: Ucinga ukuba ufuna ulawulo lwesanti, kodwa ufuna ukungena kuphela
Ukuba ulwakhiwo aluqhelekanga kwisanti, ukukhetha iindawo zokubeka "ulawulo lwesanti" kunokunyusa umngcipheko wokuplaga kunye nokulahleka koxinzelelo. Kwiimeko ezininzi, uyilo olunemingxuma lwanele kwaye lulula ukucacisa (ububanzi bomngxuma, i-pitch, ubude bekhefu elivulekileyo).

Imeko B: Ulindele imingxunya / iindawo zokubeka yedwa ukusombulula ulawulo lwesanti, kodwa ukugqitywa akunakugcinwa.
Ukuba isanti inokwenzeka (amaxabiso aphezulu, ukutsalwa phantsi okuphezulu, izinto eziqinileyo), ukuxhomekeka kwimingxuma okanye kwiindawo zokubeka kuphela kunokuba yingozi. Nokuba ufuna izikrini, ipakethe yegrabile, okanye ezinye isanti{1}}iinkqubo zolawulo yinkqubo{2}}yisigqibo senqanaba, hayi nje "izithuba ezichasene nemingxunya."

Imeko C: Ukujongela phantsi ukwamkelwa kunye namaxwebhu
Ngeemfuno ze-EPC/TPI/ zokuthumela ngaphandle, imiba ihlala ivela kumaxwebhu nakumasango okwamkela:

I-RFQ ibiza i-3.1 / 3.2, i-NDT, iirekhodi zovavanyo, kodwa umthengisi akakwazi ukuhambisa iiseti ezipheleleyo
Udinga iMDR/Data Book, kodwa ufumane iMTC esisiseko kuphela
Udinga ubungakanani bokuvula / iirekhodi zesakhiwo, kodwa ufumane isiqinisekiso somlomo kuphela

Apha kulapho iishedyuli zityibilika khona. Umbhobho we-Octal uqhele ukuqala ngokulungelelanisa uludwe loxwebhu olucacileyo (zeziphi iinqanawe ngokungagqibekanga, yintoni enokuzikhethela, yintoni edinga ingqina lesithathu-lomntu wesithathu) ukunciphisa ukungaqiniseki kokwamkelwa kwangoko.

Ukudibanisa ngokukhawuleza kwiindawo zokubeka vs. imingxuma, lungiselela

Uhlobo lokugqibezela: umngxuma ovulekileyo okanye onomngxuma{0}}onomngxuma; kuya kugqojozwa kwenye indawo?
Ukuqulunqwa: ukusabalalisa ubungakanani besanti, umxholo wezohlwayo, imbali yesanti
Ireyithi kunye nokutsalwa phantsi: izinga ekujoliswe kulo kunye noluhlu olulindelekileyo lokuhla koxinzelelo
Inkonzo: imidiya, iqondo lokushisa, i-CO2 / H2S, ukulayisha okuqinileyo
Okubalulekileyo: kwandisa ukungena / ukunciphisa isanti / ukwandisa ubomi
Iziseko zombhobho: OD, ubukhulu bodonga, ibakala, uqhagamshelo, ubude
Uyilo lokuvula: ububanzi be-slot okanye ububanzi bomngxuma, ipateni / i-pitch, ubude bekhefu elivulekileyo, indawo evulekileyo ekujoliswe kuyo
Ukwamkelwa kunye namaxwebhu: ingxelo ye-drift/ID, imfuneko yokuhlawulela, i-NDT, iimvavanyo, 3.1/3.2, iMDR/Data Book, ingqina le-TPI ukuba liyafuneka

Imibuzo eqhelekileyo

I-Q1: Ngaba i-liner slotted iyafana nesikrini?
Hayi ncam. I-liner slotted isebenzisa iindawo zokubeka ngoomatshini; "isikrini" sisoloko sibhekisa kuyilo lwesanti ekhethekileyo{1}}yolawulo. Iindawo zokubeka inokuba lungenelelo olukhaphukhaphu/isanti{3}}ukhetho logcino, ngelixa izikrini ziqhele ukuba yinxalenye yesanti ezinikeleyo{4}}iqhinga lolawulo.

I-Q2: Ngaba indawo evulekileyo ngakumbi ihlala ingcono?
Akunjalo rhoqo. Ukuvuleka okungaphezulu kunokonyusa umngcipheko wokhukuliseko, kunciphise amandla engingqi, kwaye kunyuse ubuntununtunu bokuplaga okanye kwisanti. Ubungakanani obufanelekileyo kunye nomzekelo kuxhomekeke ekubunjweni kunye neemeko zokusebenza.

Q3: Kwicased{1}}umngxunya, ndingathembela kwiindawo zokubeka/imingxuma njengolawulo lwesanti kuphela?
Lumka. Icala-ukuziphatha komngxuma kukwaxhomekeke kwimibhobho, iimeko ze-annulus, kunye nokubekwa kwesanti. Kuhlala kukhuseleke ngakumbi ukuvavanya iindawo zokubeka/imingxunya njengenxalenye yokugqitywa kunye nesanti-isicwangciso solawulo.

Inqaku lokugqibela
Ungaqalisi nge "slots okanye imingxuma." Qala ngeyona njongo yelo xesha lokuphumla: imfezeko/ukwahlukaniswa, ukungena, okanye ulawulo lwesanti. Nje ukuba injongo icacile, ukhetho luba msinya-kwaye ukuba ikhefu kufuneka lidlule ulwamkelo olungqongqo, chaza iiparamitha zokuvula kunye nomqulu wamaxwebhu ngaxeshanye.