Izindaba

Ukwakheka nokusebenza kwedivayisi ye-wellhead yokuqedela

1.Indlela yokuqeda kahle

1).Ukuqedwa kokubhoboza kuhlukaniswe: ukuqedwa kwe-casing perforating kanye nokuqedwa kokubhoboza komugqa;

2). Indlela yokuqedela imbobo evulekile;

3). Indlela yokuqedela i-Slotted Liner;

4). I-Gravel Packed Well Completion Izindlela zihlukaniswe zibe: I-gravel gravel evulekile epakishwe kahle, i-casing gravel epakishwe kahle, kanye nesikrini socingo lwamatshe olupakishwe ngaphambili;

2.Ukuqedela idivayisi ye-wellhead

Umthombo wakhiwe izingxenye ezintathu ukusuka phezulu kuye phansi: idivayisi ye-wellhead, intambo yokuqedela kanye nesakhiwo esingaphansi.

Idivayisi ye-wellhead ikakhulukazi ihlanganisa izingxenye ezintathu: ikhanda le-casing, ikhanda leshubhu kanye nesihlahla sokukhiqiza (igesi). Umsebenzi oyinhloko wedivayisi ye-wellhead ukumisa intambo yeshubhu ye-downhole kanye nentambo ye-casing, ukuvala isikhala se-annular phakathi kweshubhu, i-casing kanye nezingqimba ezimbili ze-casing. Imishini ebalulekile yokulawula ukukhiqizwa komthombo kawoyela negesi; ukujova kabusha (umjovo we-steam, umjovo wegesi, umjovo wamanzi, i-acidification, i-fracturing, umjovo wamakhemikhali, njll.) nokukhiqizwa okuphephile.

Iyunithi yezinhlamvu yokuqedela ikakhulukazi ihlanganisa amashubhu, amathuluzi e-casing kanye nama-downhole ahlanganiswe ngokuvumelana nemisebenzi ethile. Ukusebenzisa intambo yokuqedela ukuqala ukukhiqiza okuvamile kokukhiqiza kahle noma umjovo kahle kuyisinyathelo sokugcina sokuqedwa komthombo. Izinhlobo zemithombo (imithombo yokukhiqiza uwoyela, imithombo yokukhiqiza igesi, imithombo yokujova amanzi, imithombo yokujova umusi, imithombo yokujova igesi) ihlukile, futhi izintambo zokuphothula nazo zihlukile. Ngisho noma zonke ziyimithombo yokukhiqiza uwoyela, izindlela zokukhiqiza uwoyela zihlukile futhi izintambo zokuqedela nazo zihlukile. Izindlela zamanje zokukhiqiza uwoyela ikakhulukazi zifaka ukukhiqizwa kukawoyela ozijovayo kanye nokuphakanyiswa kokwenziwa (ipompo yenduku, iphampu ye-hydraulic piston, iphampu kagesi engaphansi kwamanzi, i-gas lift) ukukhiqizwa kukawoyela, njll.

Isakhiwo sembobo engezansi siyinhlanganisela yezinto eziphilayo zamathuluzi nezintambo ezixhunywe ekugcineni okuphansi kweyunithi yezinhlamvu yokuqedela efana nendlela yokuqedela.

3. Izinyathelo zokusebenza eziyinhloko zokuqedwa komthombo

1). Beka okokusebenza okungaphezulu ngokwezidingo zokuklama

2). Ukusetha ipayipi lokubhoboza noma ikholomu yeshubhu

3). Faka i-blowout preventer/function/pressure test

4). Ukukhuhla nokugeza amashubhu

5). Ukulinganisa kwe-Perforation

6). Ukuphonsa izinduku zokushisa

7). I-backwash/washout

8). Khwebula futhi ugeze futhi

9). Ehlisa umpakishi

10). Ikholomu yokulawula isihlabathi ephansi

12). Ikholomu yokukhiqiza ephansi