Casing ndiyo pombi yesimbi inotsigira madziro emafuta uye gasi matsime. Tsime rega rega rinoshandisa akati wandei akaturikidzana zvichienderana nekudzika kwekuchera uye geology. Casing mushure metsime kushandisa simende kune simenti, casing uye tubing, drill pombi yakasiyana, haigoni kushandiswa zvakare, ndeyeimwe-nguva kushandiswa kwezvinhu. Naizvozvo, kushandiswa kwemakasi kunodarika makumi manomwe muzana emapombi ese emafuta etsime. Casing inogona kukamurwa kuita pombi, pamusoro casing, tekinoroji casing uye mafuta layer casing zvinoenderana nekushandiswa, uye chimiro chavo mugomba remafuta chinoratidzwa mumufananidzo.
Pipe: inonyanya kushandiswa mukuchera mugungwa uye mugwenga, kuparadzanisa mvura yegungwa nejecha, kuve nechokwadi chekuchera kwakatsetseka, iwo makuru zvirevo zveiyi layer yecasing ndezvi: ∮762mm(30in) ×25.4mm, ∮762mm(30in) ×19.06mm.
Surface casing: inonyanya kushandiswa kuchera kwekutanga, kuchera pasi rakapfava kune dombo, kuitira kuvhara ichi chikamu chevhu pasina kudonha, inoda kushandisa iyo yepamusoro casing yekuisa chisimbiso. Zvinonyanya kutaurwa pamusoro pekasi yepasi: 508mm(20in), 406.4mm(16in), 339.73mm(13-3/8in), 273.05mm(10-3/4in), 244.48mm(9-5/8in), nezvimwewo. kudzika kwepombi kunoenderana nekudzika kwekuumbwa kwakapfava, iyo inowanzoita 80 ~ 1500m. Kumanikidza kwayo kwekunze uye kumanikidza kwemukati hakusi kukuru, kazhinji kushandisa K55 simbi giredhi kana N80 simbi giredhi.
Tekinoroji casing: inoshandiswa mukudhirowa kwekuumbwa kwakaomarara, kana ikasangana nekudonha, mafuta layer, gasi layer, mvura layer, yakarasika layer, munyu paste layer uye zvimwe zvikamu zvakaoma, inoda kuiswa chisimbiso, zvikasadaro kuchera kunogona. hazviitwe. Mamwe matsime akadzika uye akaomarara, uye kudzika kwetsime zviuru zvemamita, tsime rakadzika iri rinoda akati wandei akaturikidzana etekinoroji casing, midziyo yayo yemagetsi uye yekuisa chisimbiso zvinodiwa zvakakwirira, kushandiswa kwesimbi giredhi zvakare kwakakwira, kuwedzera K55, yakawanda N80 uye P110 simbi giredhi, mamwe akadzika Wells anoshandisawo Q125 kana yepamusoro isiri-API simbi giredhi seV150. Mamiriro makuru eiyo tekinoroji casing ndeaya: 339.73mm(13-3/8in), 273.05mm(10-3/4in),244.48mm(9-5/8in),219.08mm(8-5/8in),193.68 mm(7-5/8in), 177.8mm(7in), zvichingodaro.
Oiri layer casing: Paunenge uchidhirowa muchikamu chinotarirwa (iyo oiri uye gasi inotakura layer), zvinodikanwa kuvhara mafuta uye gasi layer uye yepamusoro yakafukidzwa fomu ine mafuta casing, uye pombi yemafuta iri mukati meoiri casing. Mumhando dzese dzecasing casing, kudzika kwekuchera ndiko kwakadzika, uye midziyo yayo yemakanika uye yekuisa chisimbiso kuita zvinodiwa zvakare ndiyo yepamusoro. The simbi mamakisi ari K55, N80, P110, Q125, V150 uye zvichingodaro. Mamiriro makuru echivharo casing ndeaya: 177.8mm(7in),168.28mm(6-5/8in),139.7mm(5-1/2in),127mm(5in),114.3mm(4-1/2in), nezvimwewo. .
Nguva yekutumira: Oct-13-2023
Kamuri 703 Chivako B, Greenland pakati, Hi-tech yekuvandudza zone Xi'an, China
86-13609153141
