Corrosion Tubing Fishing Technology

Profaili yekudzora tekinoroji yejekiseni mutsime inoreva tekinoroji yekudzora kunyudzwa kwemvura kwemvura yakakwira yekunyura nemuchina kana kemikari nzira, kuwedzera kunyura kwemvura kweyakadzika mvura yekunyudza layer zvichienderana, zvichiita kuti jekiseni remvura rifambire mberi zvakaenzana uye kuvandudza kutsvaira kwemafuta. layer.

Kune nzira dzemakanika uye nzira dzemakemikari dzekudzora chimiro chejekiseni Wells. Iyo mechanic profile yekudzora nzira inonyanya kugadzirisa huwandu hwejekiseni remvura reyega yega jekiseni kuburikidza nejekiseni remvura rakaomeswa, kuitira kuti uwane chinangwa chekugadzirisa chimiro chekuyamwa.

Mukugadzirwa kwemafuta negasi Wells, tubing yepasi pevhu inoshatiswa uye yakanyungudutswa nezvinoodza midhiya senge hydrogen sulfide, kabhoni dioxide uye kugadzira mvura yemumunda wegasi kwenguva yakareba, zvichikonzera kuonda kwechubhu, kupera uye kunyange kutsemuka.

1. 1.CorrosionTubing Zvakanaka Hunhu

(1) Kuumbwa kwekumanikidza coefficient yakaderera, mazhinji acho ari pakati pe0.5 ne0.7, uye mamwe ari pasi, saka hazvibviri kumisikidza kutenderera, izvo zvinounza matambudziko makuru ekukuya, kugaya nekuchera.

(2) Chiyero chekuora kwechubhu yakakomba, kazhinji inosvika 30% kusvika 60% (chikamu chehuremu), uye mudhuri wepombi wakaora mukati nekunze.

(3) Simba rekoramu yepombi yakaderera, kudzvinyirira kuri nyore "kuderera", uye pamusoro pehove inowanzochinja, saka kudhinda kunotungamirira hakubatsiri;

(4) Zvakaoma kugadzira bhagi mukati nekunze.

2.Corrosion Tubing Fishing Principle

Pamusoro peiyo yakajairwa hove misimboti, corrosion tubing hove kunofanirwa kutevedzera zvinotevera misimboti:

(1) Mamiriro epasi pevhu akajeka, midziyo yekubata hove inosarudzwa zvakarurama, uye kutendeseka kwepamusoro pehove uye hove yepasi inochengetedzwa sezvinobvira;

(2) Zvakanaka kutonga kuchengetedzwa kunofanirwa kuve nechokwadi panguva yekuredza.

(3) Kubata hove hakugone kuomesera mamiriro epasi, chero matanho anofanira kunge aine nzira yekubuda nayo, haagone neupofu tentative hove;

(4) Haikwanise kukanganisa yekutanga kugadzirwa kwesimba;

(5) Haikwanise kushandisa kugaya nyore nyore, asi haigone kushandisa kugaya shangu nyore nyore, kudzivirira zvakanyanya kuoma;

(6) Dzivirira kukuvadza kune casing.

3.Corrosion Tubing Hove Matanho

(1) Kuora kwechubhu kunounzawo kukora kwekasi, saka zvinodikanwa kuona uye kutonga kunaka kwegomba remvura, uye edza kudzivirira kukuvara kwechubhu uye casing.

(2)Usakurumidze, ronga nekuronga zvakadzama. Corroded tubing zviri pachena kuti yakasiyana neyakajairwa tubing uye drill pombi hove. Tubing haigone kununurwa nenzira imwechete yekuchera pombi hove. Kana kubata hove kwekumanikidzira kwakagamuchirwa, tubing inogona kubatwa kunze kwekeji. Naizvozvo, kana sarudzo yezvishandiso ikasanzwisisika, inogona kukonzera kuomarara kwepasi, zvichiunza matambudziko asingaverengeki kune gare gare salvage. Sarudzo yezvishandiso zvekutanga zviri nani kusafunga nezvezvishandiso nekuchera, kugaya uye kugaya zvinhu, nekuti zvinogumbura uye zvinogona kuparadza hove uye casing, zvichiunza kuwanda kwakaoma.

(3) Midziyo inofanira kuva yakavimbika uye yakarurama. Iyo brake system yemuchina wekushanda inonzwa uye yakavimbika, uye kushandiswa kwemhete yekusimudza uye elevator yakasungwa zvakasimba, uye kunaka kwegomba retambo kunotariswa. Iyo crane, turntable uye wellhead inofanirwa kubatwa nemazvo. Kelly pombi inofanira kutwasanudzwa, mushure mekushandisa haigone kurerekera pamucheto wedhiri pasi; Chiratidzo chehuremu chinonzwisisika, chakavimbika uye chakarurama. Zvishandiso zvinofanirwa kunyatsoongororwa uye kunyorwa (zvichida nemifananidzo) pasina matambudziko emhando. Nyatsoyera, verenga "three square into" (hove yepamusoro sikweya kupinda, salvage side kupinda, salvage side kupinda), womaka

(4) Tsvaga iyo yemukati uye annular mamiriro eiyo tubing. Nheyo yehove yehove inofanirwa kutanga kubva kunze kwepombi yemafuta, tarisa kunze kwepombi yemafuta, uye kazhinji usashandise hove yemukati (yepombi yemafuta yakaora). Sarudzo yezvishandiso inogona kugadzirwa kuback-off slip hove cylinder, inofambiswa hwindo rekubata silinda, inotsvedza block hwindo rekubata hove uye mamwe maturusi asingakuvadzi hove, mwenje kumanikidza uye kunonoka kutendeuka kana uchibata hove, huremu hushoma haufanire kunge hwakanyanya. .

(5) Pamusoro pezvikonzero zvekuchengetedza, inonyanya kuongorora kudzora kwehunyanzvi, uye zvinhu zvinodzika nekubuda zvinofanirwa kunyatsoongororwa, kurongedza, kubatanidzwa uye kudzoreredzwa, kuitira kuongorora zvinogona kuitika zvemugodhi.

(6) Kana dhiri yekuchera yemusoro wehove ichida kudzikira (mukati me1t), iwo mapikicha haafanire kunge akakurisa (pasi pe10cm), uye ipapo mafirita esimbi anofanirwa kuburitswa nenguva uye chimiro chehove. musoro unofanira kuongororwa.

4.Corrosion Tubing Hove Tools

1,Die Collars

Rudzi rwakakura rwechikadzi cone hove tambo taper inogona kuiswa ku1: 8, iyo inopeta kaviri tepi yeyakajairwa yechikadzi koni yekuredza shinda, uye kureba kweshinda yekuredza inowedzerwa zvakafanira, uye kuredza kwakakura kudarika kuredza kwemhando yekoni yevakadzi yakajairika. Semuenzaniso, koni yechikadzi MZ60 × 125 tambo yekubata hove kureba kwe177.8mm casing ndeye 520mm, iyo taper ndeye 1: 8, iyo yakakura dhayamita 125mm, uye kuredza kureve ndeye 60 ~ 125mm; Mushure me73mm tubing corrosion fracture, iyo tubing kutyoka inotsikirirwa nekuremara, uye kureba kwayo axis dhayamita inowanzoita 90 ~ 105mm, uye iyo yakawanda kazhinji haipfuuri 115mm. Paunenge uchibata hove, tenderera pasi, utungamirire shangu muhove inowira, hove inowira muhove huru yekoni dzechikadzi, uye zvino ramba uchitenderera pasi kuti upedze kumusoro kwehove kupfeka uye kubata.

Hurukuro hweDie Collars hunoshandiswa kubata hove dzemachubhu ane corroded ane deformation yakakomba yehove yepamusoro asi paine simba rakati, uye zvakare inogona kununura zvidimbu zvakaputsika nemarara echubhu kuchenesa pamusoro pehove, uye zvakare inogona kununura iyo yakazara tubing. , iyo inoshandiswa zvakanyanya uye inochengetedza zvakanaka pamusoro pehove.

2.Block Spears Hove

Iyo Block Spears inoumbwa nemuviri wembiru, inotsvedza uye bhutsu yekutungamira. Iyo yepamusoro yekupedzisira yehumburu ndeye tambo yemukati, iyo inogona kubatanidzwa kune yakareba cylinder. Mukati memukati imhango yeconical ine "chikamu chidiki chepamusoro" uye machuti matatu akavhurwa zvakaenzanirana nepakati chikamu. Iyo slide block inoiswa muchute, iyo yekupedzisira kumeso kweiyo slide block inogadziriswa nemazino ane radial, uye iyo yemukati yekupedzisira kumeso ine mutsara wemazino emukati anochinjika. Munguva yekubata hove, shangu inotungamirwa muhove uye silinda yehove inodzikiswa, kumusoro kwehove inosundirwa kumusoro ichitevedza chute, pamusoro pehove inopfuura nepasiraidhi block, silinda yehove inosimudzwa, uye slide block inofamba ichifambidzana. chute kubata hove uye kuwana hove.

Chikamu chekuredza cheBlock inogona kunge iri pombi yemafuta kana kubatanidza pombi yemafuta. Pakubata hove, kubatanidza kwekutanga pasi pepamusoro pehove kunogona kupfuura nepainotsvedza kuti uone kubata hove nekusimudza kubatana; Inogona zvakare kuita kuti inotsvedza idzivise chikamu chakakomba chemafuta pombi corrosion deformation uye kubata chikamu chakazara.

Iyo Block Spears haingogone chete kuona kubata hove, asi zvakare kuziva iyo reverse bhagi kana tubing yanamira. Iyo reverse torque inofambiswa kuburikidza nemazino eradial pamusoro peinotsvedza kana kuburikidza nemeno emukati memutsetse, mutserendende uye chute. Iyo inotsvedza block dredge inokodzera kubata hove uko corrosion deformation haina kunyanyo nyanya, uye budiriro yekubata hove yakakwira.

3.Overshot With Slot

Iyo overshot ine slot inogadzirwa ne8 kusvika 10m scrap milling barrel kana casing, sezvakaratidzwa muFigure 1-1. Mugumo wezasi wedhiramu rehove unogadzirwa kuva peni tip yemhando uye dhadha-bill mhando yekutungamira shangu, uye cylinder body inovhurwa symmetrically nemitsara imwechete kana mbiri, ine elasticity yakanaka, nyore kuvhura kufambisa kuiswa kwehove inodonha, uye zviri nyore kudzoreredza iyo yekutanga chinzvimbo che clamping hove dziri kudonha. Iyo hoko inogadzirwa nekuvhura hwindo muhumburumbira, katatu kana trapezoidal, yakadzedzereka, ine rimwe simba uye elasticity.

Fig1 Overshot With Slot Diagram

Mushure mekunge hove yaiswa pachena kune hove inodonha, dhadha bhiri kana peni tip gidhi shangu inovhurika zvakasikwa uye ichidzika pasi pedyo nemadziro emadziro. Ihove inodonha ichapinda muchikamu chehove chehove kuburikidza neshangu yekufambisa, kusvina elasticity yehove yekubata hove, uye panguva imwechete, vhura chikamu chakaputsika, ramba uchidzikisa tambo yepombi pasi pekumanikidzwa, uye hove inodonha ichave. wedzera kupinda muchikamu chepamusoro chehove, simudza tambo yekubata hove, uye hove yekubata hove inogona kunamatira kugomba kana kupinda mukati megomba rakasvibiswa. Kana tsigiro padanho rekora uye majoini kuti uwane corrosion tubing hove.

The overshot ine slot inogona kuchenesa pombi yeoiri yakatyoka uye pombi yemafuta yepadivi-ne-padivi, uye inogonawo kuchenesa pombi yemafuta yakaputsika, marara uye humwe marara, kuchenesa pamusoro pehove, uye kugadzira mamiriro ekununura kunotevera.

4.Composite Milling uye Hove Tool

Chishandiso chekubatanidza chinogona kupedzisa kushanda kwakasanganiswa kwekugaya uye kubata hove. Shangu dzeMilling dzakasanganiswa nehwindo rekudonha chigubhu, simbi waya yekuchera chigubhu, inotsvedza block dredging dhiramu, koni yechikadzi uye mamwe maturusi ekuredza, ayo anogona kupedzisa kugayo, kugadzirisa hove uye kubata hove. Kuti udzivirire pamusoro pehove kusvika pazvinobvira, shangu dzekugaya dzinoshandisa hombe yemukati dhayamita milling shangu.

Iyo yakakura renji casing cone chishandiso chinoshanda checorroding tubing casing. Iyo inoumbwa nehombe yemukati dhayamita casing mill uye yakakura siyana casing cone. Yakakura mukati medhayamita overshoes ine yakakura mukati dhayamita, nyore kusuma pamusoro pehove, uye ukuru hwehove yakagayiwa idiki; Rudzi rwakakura rwechikadzi koni yekuredza shinda, iyo huru yekupedzisira shinda yekuredza dhayamita yakakura, uye ipapo nekukurumidza diki, pamusoro pehove ichipinda mukoni yehadzi mushure mekusangana nechikamu chekuredza. Naizvozvo, huwandu hukuru hwemakoni echikadzi akagayiwa anogona kudzivirira pamusoro pehove kusvika pamwero mukuru, uye anogonawo kupedzisa kubata hove.