Abapakisheli Ukufumana kwakhona iingqwalasela

1. Khupha umpakishi ngobuncinci betyhubhu, ukutsalwa ngokuthe ngqo, okanye ukukhutshwa kwe-1/3.

Amaxesha amaninzi iimeko ezifanelekileyo okanye ezinye izixhobo zokulahla umngxuma kumtya zenza kube yinto enqwenelekayo ukuba umpakishi akhululwe ngokuphathwa kwetyhubhu encinci okanye akukho. imingxunya enxaxhileyo yimizekelo yangaphambili, lo gama ubukho eccentric gas lift side mandrels pocket okanye ubude 1/4″ umgca wolawulo emngxunyeni iya kuba yimizekelo yokugqibela. Indlela yokukhupha ngokuthe ngqo ukutsala lolona khetho lunqwenelekayo kwiimeko ezininzi. Aba paki badla ngokucheba baqhotyoshwe kwindawo ebekiweyo (ngaphandle – ezinye iintlobo zeeseti zoxinzelelo). Enye inketho bubuncinane bohlobo lokujikeleziswa kohlobo (1/3 jika kwipaki) ukuba ezinye ezinokubuyiswa zibe nazo. Iintlobo ezininzi zetywina eziboleweyo zikhutshwa ngoxinzelelo oluthe ngqo kodwa kuphela emva kokuba iyunithi yetywina yemveliso itsaliwe. Aba bapakisheli bafuna uhambo olongezelelweyo kunye nesixhobo sokukhulula ukwenzela ukutsala umpakishi. Nangona kunjalo, akukho mjikelezo wetyhubhu ofunekayo. Iipakethe ezimbalwa ezikhethekileyo ziye zayilwa kwaye ziqhutywa zikhupha ngokuthe tye emva kokuba umkhono wocingo utshintshiwe. Olu khetho ngandlel’ ithile aluthandwa kuba ukukwazi ukutsala umpakishi kuxhomekeke kunikezelo locingo kumpakishi. Ukunqongophala kofikelelo kwiityhubhu kunokuba sisizathu sokufuna ukutsala ipakethe yemveliso kwasekuqaleni.

2. Yenza ugcino lwesakhono sokukhululwa, ukukhululwa kwe-chear yokhuseleko, okanye ukukhululwa okujikelezayo.

Iimeko zomthombo ongafunekiyo, iingxaki zemveliso ezingacwangciswanga, kunye nokungahambelani nezinye izixhobo ze-downhole zizo zonke izizathu ezinokwenza ukuba amandla okukhutshwa kwe-backup abe yinto efunekayo. Ukuba eyona ndlela yokukhupha ingundoqo ayikwazi okanye ayisebenzi ngesizathu esithile, uphawu olunjalo luba lubaluleke kakhulu. Ngamanye amaxesha, la mathuba anokulindelwa kwaye uphawu olunjalo kufuneka lubambe indawo ephambili ekukhetheni ipakethe. Olona hlobo luqhelekileyo lokukhululwa kwesibini kukucheba izikhonkwane zokucheba okanye izikrufu ngokutsalwa okuthe ngqo. Nangona kunjalo, ukukhutshwa kohlobo lojikelezo lwesibini lukwabandakanyiwe kwezinye iipakethe.

3. Iityhubhu okanye ipaki enokubuyiswa ngokuzaliswa okuthile, i-packer bypass okanye iyunithi yokutywina egungxulwayo.

Eminye imisebenzi yemveliso inokukhokelela ekugcwaliseni okuphakathi kwibhokisi engaphezulu kwepaki. Umzekelo uya kuba yimveliso yommandla wesibini ngaphezu kwepakethe enye kwi-tubing / casing annulus. Izohlwayo eziveliswayo ukusuka kwindawo ephezulu zingahlala kumphezulu wokupakisha. Kwiimeko ezinjalo, umpakishi kufuneka abekwe ngokusondeleyo kunokwenzeka ukuya ngaphantsi kwendawo ephezulu okanye i-sleeve ye-sliding kufuneka ibekwe ngokusondeleyo kunokwenzeka kwi-packer top. Nangona kunjalo, nangona kunjalo ezinye izohlwayo ziya kuhlala kwaye i-bypass okanye i-press unloader iluncedo kakhulu ukuvumela i-tubing kwi-casing circulation ngaphezu kwezinto ukususa izohlwayo okanye i-debris. Kuhlobo olusisigxina okanye lwetywina olunokubuyiswa, indibano yetywina inokubonelela ngesakhono esifanayo. Oku kusebenza ngcono xa indibano yetywina ilingana okanye incinci kwi-OD kunetyhubhu.

4. Ukulinganisa uxinzelelo ekukhululweni kwe-packer, i-pressure unloader okanye iyunithi yokutywina eyahlukileyo.

Xa abapakishi beqhutywa ngaphaya kobunzulu obuphakathi, kuyakwenzeka okanye kunokwenzeka ukuba umahluko omkhulu woxinzelelo unokubakho kuwo wonke umpakishi ekukhululweni. Ukuba umqhubi akayilayishi iityhubhu ngaphambi kokuba akhululwe, uxinzelelo lwe-casing fluid lunokuba phezulu kakhulu kunoxinzelelo lwedama eliphelelweyo libekwe lodwa. Umahluko osuka ngezantsi unokubakho phantsi kwezinye iimeko ukuba i-reservoir esecaleni ihlawuliswa ngenaliti okanye icinezeleke kakhulu ngokwendalo.

Kuyo nayiphi na imeko, ukuba isixhobo esilinganisa uxinzelelo lolunye uhlobo alufumaneki, ngoko kukho ithuba elihle lokuba ukukhutshwa kompakishi kunokuba nzima, kunye/okanye iphakheji yento iya konakaliswa kwinkqubo yokukhulula. Olu luphawu olubaluleke ngakumbi ukuba umpakishi ufuna ukusetwa kwakhona kuhambo olufanayo. Inketho yoyilo lwangaphakathi-loxinzelelo-ukhuphelo loyilo kukuba ukulingana okufanayo kunokwenziwa ngokutsala idibaniso yetywina ngaphandle kohlobo lwetywina lohlobo lompakisho onokubuyiswa.

5. Khupha i-packer ngaphandle kohambo lwe-tubing, i-tubing idibanisa ngqo kwi-packer.

Njengoko bekutshiwo ngaphambili, abanye abapakisheli bafuna uhambo olujikelezayo lwetyhubhu ukuze babuyise indibano yokutywina kwaye baphinde basebenzise isixhobo sokutsala. Oku akwamkelekanga kwiimeko ezithile. Kweminye imisebenzi efayiliweyo apho ukusebenza rhoqo kuxhaphakile, uqoqosho lweenkqubo zokutsalwa ezinjalo alunakuthetheleleka. Ukuze ukwazi ukutsala umpakisheli ngaphandle kohambo lwetyhubhu, kufuneka ibe luhlobo oluyilelwe ukuthungelwa ngokuthe ngqo kwityhubhu kwaye hayi uhlobo lwebhore yotywino olunokubuyiswa oluncanyathiselwe kwityhubhu ngelatshi ekudibaneni kwetywina. . Imeko eyahlukileyo yinguqulelo yokukhutshwa kwe-wireline ekuxoxwe ngayo ngaphambili. Uninzi lwezi ntlobo zemisonto-ukuya-kwi-packer zinokulungiswa kunye nezixhobo ukuze i-tubhing itsalwe ngokwahlukileyo kwipaki kwaye igcine ukufunyanwa kwakhona ngaphandle kwetyhubhu yokuhamba nokubuya.

6. Isipakishi esigayiweyo ngokulula, umgama wokusila osezantsi, kunye nokungajikelezi.

Iimfuno ze-packer esisigxina elula kwaye ekhawulezayo zicacile. Uyilo lwePacker elwenza oku kwenzeke lubandakanya amacandelo esinyithi anokusilwa, uyilo lomgama ophantsi welitye lokusila, uyilo lwe-OD's milled, kunye neempawu zokutshixa ezichasene nokujikeleza.

Iimveliso ze-packer ze-Vigor zenziwa ngokwemigangatho ephezulu ye-API 11D1, kwaye zonke iipakethe ezivela kwi-R & D ukuya kwimveliso ukuya ekuhanjisweni kokugqibela kubathengi zilawulwa ngokungqongqo kwaye zibhalwe ukuze kuqinisekiswe ukuba umgangatho weemveliso unokuhlangabezana neemfuno zabathengi. Ukuba unomdla kuluhlu lwe-Vigor lwe-perforating guns, nceda unganqikazi ukudibana neqela leengcali zeVigor ngenkxaso yemveliso engcono kunye nenkxaso yobugcisa.