Corrosion Tubing Fishing Technology

Ukadaulo wowongolera mbiri ya jakisoni bwino umatanthawuza ukadaulo wowongolera mayamwidwe amadzi am'madzi ochulukirapo pogwiritsa ntchito makina kapena njira yamankhwala, kukulitsa mayamwidwe amadzi otsika amadzi otsika molingana, kupangitsa kuti jekeseni wamadzi apite patsogolo mofanana ndikuwongolera kusesa kwamafuta. wosanjikiza.

Pali njira zamakina ndi njira zamakina zowongolera mbiri ya jakisoni wa Wells. Njira yoyendetsera mbiri yamakina ndikusintha kuchuluka kwa jakisoni wamadzi pagawo lililonse kudzera mu jakisoni wamadzi wa stratified, kuti akwaniritse cholinga chosinthira mawonekedwe oyamwa.

Pakupanga mafuta ndi gasi Wells, machubu mobisa ndi dzimbiri ndi kukokoloka ndi zowononga TV monga hydrogen sulfide, carbon dioxide ndi mapangidwe madzi gasi munda kwa nthawi yaitali, chifukwa chubu khoma kupatulira, perforation ndipo ngakhale fracture.

1. 1.ZimbiriMakhalidwe a Tubing Well

(1) Mapangidwe a mphamvu ya coefficient ndi otsika, ambiri a iwo ali pakati pa 0,5 ndi 0,7, ndipo ena ndi otsika, choncho n'zosatheka kukhazikitsa kuyendayenda, zomwe zimabweretsa zovuta zazikulu pakupera, mphero ndi kubowola.

(2) Kuchuluka kwa dzimbiri kwa chubu ndi kwakukulu, nthawi zambiri mpaka 30% mpaka 60% (kachigawo kakang'ono), ndipo khoma la chitoliro limawonongeka mkati ndi kunja.

(3) Mphamvu ya chitoliro cha chitoliro ndi yochepa, kupanikizika kumakhala kosavuta "kuchepa", ndipo pamwamba pa nsomba nthawi zambiri kumasintha, kotero kusindikiza kotsogolera sikuthandiza;

(4) N’kovuta kupanga zomangira mkati ndi kunja.

2.Corrosion Tubing Usodzi Mfundo

Kuphatikiza pa mfundo zausodzi wamba, usodzi wa corrosion chubing uyenera kutsatira mfundo izi:

(1) Zomwe zili pansi pa nthaka zimamveka bwino, zida zophera nsomba zimasankhidwa molondola, ndipo kukhulupirika kwa pamwamba pa nsomba ndi nsomba za pansi pa nthaka zimasungidwa momwe zingathere;

(2) Chitetezo chowongolera bwino chiyenera kuwonetseredwa panthawi ya usodzi.

(3) Ntchito za usodzi sizingasokoneze zochitika zapansi panthaka, miyeso iliyonse iyenera kukhala ndi njira yopulumukira, sangasowe mwachimbulimbuli mongoyesera;

(4) Sizingakhudze mphamvu yopangira yoyambirira;

(5) Sangathe kugwiritsa ntchito mphero mosavuta, koma sangathe kugwiritsa ntchito mphero ya nsapato mosavuta, kupewa zovuta kwambiri;

(6) Pewani kuwonongeka kwa casing.

3.Corrosion Tubing Njira Zosodza

(1) Kuwonongeka kwa chubu kumabweretsanso dzimbiri, choncho m'pofunika kuzindikira ndi kuweruza khalidwe la wellbore casing, ndikuyesera kupewa kuwonongeka kwa chubu ndi casing.

(2)Osapupuluma, konzani ndikukonza mwatsatanetsatane. Kuphatikizika kwamachubu mwachiwonekere ndikosiyana ndi usodzi wamapaipi wamba ndi kubowola. Machubu sangapulumutsidwe mofanana ndi kubowola paipi nsomba. Ngati kupha nsomba mokakamiza kulandilidwa, machubu amatha kugwidwa kunja kwa khola. Chifukwa chake, kusankha kwa zida kukakhala kopanda nzeru, kungayambitse zovuta kwambiri mobisa, kubweretsa zovuta zosawerengeka pakupulumutsa pambuyo pake. Kusankha zida zoyambira ndibwino kuti musaganizire zida zobowola, kugaya ndi mphero, chifukwa zimakhumudwitsa ndipo zimatha kuwononga nsomba ndi casing, kubweretsa zovuta zambiri.

(3) Zida ziyenera kukhala zodalirika komanso zolondola. Dongosolo la brake la makina ogwiritsira ntchito ndi lomveka komanso lodalirika, ndipo kugwiritsa ntchito mphete yonyamulira ndi elevator kumangiriridwa mwamphamvu, ndipo mtundu wa dzenje la zingwe umayang'aniridwa. Crane, turntable ndi mutu wamutu ziyenera kuyendetsedwa bwino. Chitoliro cha Kelly chiyenera kuwongoleredwa, pambuyo pa ntchito sichingasunthike pamphepete mwa kubowola pansi; Chizindikiro cholemera ndi chomveka, chodalirika komanso cholondola. Zida ziyenera kuyang'aniridwa mosamala ndikulembedwa (makamaka ndi zithunzi) popanda mavuto abwino. Yezerani mosamala, werengerani "makona atatu kulowa" (nsomba pamwamba pa nsomba, pulumutsirani, mbali yopulumutsira kwambiri), ndipo ikani chizindikiro.

(4) Dziwani zamkati ndi zapachaka za chubu. Mfundo yofunika kwambiri pa usodzi iyenera kuyambira kunja kwa chitoliro chamafuta, kuyang'ana kunja kwa chitoliro chamafuta, ndipo nthawi zambiri musagwiritse ntchito nsomba zamkati (paipi yamafuta yazimbiri). Kusankhidwa kwa zida kungathe kukonzedwanso ku silinda yosodza yobwerera m'mbuyo, silinda yosodza pawindo, sliding block window silinda yosodza ndi zida zina zomwe sizikuwononga nsomba, kuthamanga kopepuka komanso kutembenuka pang'onopang'ono posodza, kulemera pang'ono sikuyenera kukhala kokwera kwambiri. .

(5) Kuphatikiza pazifukwa zachitetezo, makamaka ndi kusanthula kwaukadaulo, ndipo zinthu zomwe zimapita pansi ndi kunja ziyenera kusanthulidwa bwino, kulumikizidwa, kuphatikiza ndi kubwezeretsedwa, kuti athe kusanthula momwe mgodi ungathere.

(6) Ngati mphamvu yakubowola ya mutu wa nsomba ikuyenera kukhala yotsika (mkati mwa 1t), chithunzicho chisakhale chachikulu kwambiri (chosakwana 10cm), ndiyeno zitsulo zachitsulo ziyenera kuchotsedwa nthawi ndi mawonekedwe a nsomba. mutu uyenera kuwunikiridwa.

4.Corrosion Tubing Zida Zosodza

1,Die Collars

Ulusi waukulu wa ulusi wa cone wa akazi ukhoza kukhazikitsidwa ku 1: 8, womwe ndi wowirikiza kawiri wa ulusi wamba wausodzi, ndipo kutalika kwa ulusi wosodza kumachulukitsidwa moyenerera, ndipo mtundu wa usodzi ndi waukulu kwambiri kuposa nsomba zosiyanasiyana za ochiritsira wamkazi chulucho. Mwachitsanzo, chulu chachikazi cha MZ60 × 125 kutalika kwa ulusi wa 177.8mm ndi 520mm, taper ndi 1: 8, m'mimba mwake ndi 125mm, ndipo mtundu wa nsomba ndi 60 ~ 125mm; Pambuyo 73mm chubu dzimbiri fracture, ndi chubu fracture ndi wothinikizidwa ndi kupunduka, ndi m'mimba mwake yaitali olamulira nthawi zambiri 90 ~ 105mm, ndipo pazipita zambiri zambiri zosaposa 115mm. Mukamasodza, zungulirani pansi, mutsogolere nsapato mu nsomba yakugwa, nsomba zomwe zikugwera mumagulu akuluakulu a ma cones aakazi, ndiyeno pitirizani kuzungulira pansi kuti mutsirize pamwamba pa nsomba kuvala ndi kugwira.

Mitundu yambiri ya Die Collars imagwiritsidwa ntchito popha nsomba zam'machubu ochita zimbiri zopindika kwambiri pamwamba pa nsomba koma ndi mphamvu inayake, komanso zimatha kupulumutsa zidutswa zosweka ndi zinyalala za machubu kuti ziyeretse pamwamba pa nsomba, komanso kupulumutsa machubu athunthu. , yomwe imagwiritsidwa ntchito kwambiri komanso imateteza bwino pamwamba pa nsomba.

2.Block Spears Fishing

The Block Spears imapangidwa ndi thupi la mbiya, slider ndi nsapato yowongolera. Kumtunda kwa silinda ndi ulusi wamkati, womwe ukhoza kulumikizidwa ndi silinda yayitali. Mkati mwake ndi kabowo kakang'ono kamene kamakhala ndi "gawo laling'ono lapamwamba" ndipo machuti atatu amatsegulidwa motsatana pakati. Chophimbacho chimayikidwa mu chute, mapeto a slide block amakonzedwa ndi mano ozungulira, ndipo nkhope yamkati imakhala ndi mzere wa mano amkati. Panthawi yopha nsomba, nsapato imalowetsedwa mu nsomba ndipo silinda yophera nsomba imatsitsidwa, pamwamba pa nsomba imakankhidwira mmwamba motsatira chute, pamwamba pa nsomba imadutsa pa slide block, silinda yophera nsomba imakwezedwa, ndipo slide block imayenda pang'onopang'ono. chute kugwira nsomba ndi kukwaniritsa kusodza.

Gawo lausodzi la Block ikhoza kukhala chitoliro chamafuta kapena cholumikizira chitoliro chamafuta. Mukawedza, kulumikiza koyamba pansi pa pamwamba pa nsomba kumatha kudutsa pa slider kuti muzindikire kusodza pokweza cholumikizira; Itha kupangitsanso chotsetsereka kupewa mbali yayikulu ya chitoliro cha chitoliro chamafuta ndikugwira gawo lonselo.

A Block Spears sangangozindikira kusodza kwa machubu, komanso amazindikira chotchinga chakumbuyo pomwe chubu chakhazikika. Makokedwe am'mbuyo amafalikira kudzera m'mano a radial pamwamba pa slider kapena kudzera m'mano amkati a slider, slider ndi chute. Malo otsetsereka ndi oyenera kusodza pamachubu komwe kusinthika kwa dzimbiri sikovuta kwambiri, ndipo chiwopsezo chake cha usodzi ndichokwera kwambiri.

3.Overshot Ndi Slot

Kuwonjeza kokhala ndi kagawo kumapangidwa ndi mbiya yophera zidutswa za 8 mpaka 10m, monga momwe tawonetsera pa Chithunzi 1-1. Mapeto apansi a ng'oma yopha nsomba amapangidwa kukhala cholembera cholembera ndi nsapato ya mtundu wa bakha, ndipo thupi la cylinder limatsegulidwa mofanana ndi mizere imodzi kapena iwiri, yokhala ndi elasticity yabwino, yosavuta kutsegula kuti iwonetsetse nsomba zakugwa, ndi zosavuta kubwezeretsa malo oyambirira a clamping kugwa nsomba. Njoka imapangidwa ndi kutsegula zenera mu cylinder, triangular kapena trapezoidal, yogwedezeka, ndi mphamvu inayake komanso kusungunuka.

Fig1 Overshot With Slot Diagram

Nsombayo ikadzakumana ndi nsomba yomwe ikugwa, bili ya bakha kapena pensulo yowongolera nsapato imatseguka mwachilengedwe ndikutsikira pafupi ndi khoma la casing. Nsomba zakugwa zidzalowa mu gawo la nsomba za mbiya yophera nsomba kudzera mu nsapato yotsogolera, kufinya kusungunuka kwa mbedza, ndipo panthawi imodzimodziyo, tsegulani gawo losweka, pitirizani kutsitsa chingwe cha chitoliro mopanikizika, ndipo nsomba yakugwa idzagwa. pitilizani kulowa kumtunda kwa mbiya yophera nsomba, kwezani chingwe chophera nsomba, ndipo mbedza imamatira ku dzenje kapena kulowa mu dzenje la dzimbiri. Kapena thandizirani pa sitepe ya kolala ndi cholumikizira kuti mukwaniritse kusodza kwa machubu a dzimbiri.

Kuwotcha kokhala ndi kagawo kumatha kupulumutsa chitoliro chamafuta osweka ndi chitoliro chamafuta mbali ndi mbali, komanso kupulumutsa chitoliro chamafuta osweka, zinyalala ndi zinyalala zina, kuyeretsa pamwamba pa nsomba, ndikupanga mikhalidwe yopulumutsiranso.

4.Composite Milling and Fishing Tool

Chida chophatikizira chimatha kumaliza ntchito yophatikiza mphero ndi usodzi. Nsapato za mphero zimaphatikizidwa ndi ng'oma yowotchera zenera, ng'oma yachitsulo, sliding block dredging drum, cone yaakazi ndi zida zina zophera nsomba, zomwe zimatha kumaliza mphero, kukonza nsomba ndi ntchito zophatikizira nsomba. Pofuna kuteteza pamwamba pa nsomba momwe zingathere, nsapato za mphero zimagwiritsa ntchito nsapato zazikulu zamkati zamkati.

Chomera chachikulu chamitundu yosiyanasiyana ndi chida chothandiza pakuwononga machubu. Zimapangidwa ndi mphero zazikulu zamkati zamkati ndi cone yayikulu yosiyana. Zovala zazikulu zamkati zamkati zimakhala zazikulu mkati mwake, zosavuta kuziwonetsa pamwamba pa nsomba, ndipo kukula kwa nsomba yogayidwa ndi yaying'ono; A lalikulu osiyanasiyana wamkazi chuluni nsomba ulusi taper, lalikulu mapeto usodzi awiri ulusi ndi lalikulu, ndiyeno mwamsanga yaing'ono, pamwamba pa nsomba mu chulu wamkazi atangokumana ndi mbali nsomba. Choncho, mitundu yambiri ya ma cones aakazi opangidwa ndi milled amatha kuteteza pamwamba pa nsomba kwambiri, komanso amatha kumaliza ntchito yopha nsomba.