Casing matsime

The casing wetsime rinoshandiswa ichiri drilling. The zvebasa maatomu akafanana izvi vanoumbwa yaizogara rinodeurwa ivhu mukati. Dzishandise mbiru mune gomba iri pakutanga akachera.

Panguva yokupedzisira Danho nzvimbo pakati wellbore parusvingo uye casing uzere kongiri. Ungadzidzei zvakawanda pazasi. Humwe kuisa midziyo achabatsirwa kugadzwa mano kupinda casing, izvo zvinofanira kusarudzwa kufungisisa zvinhu zviri chirongwa. Pachava ushandiswe dhayamita uye mugomba saizi.

Sei kusarudza dhayamita

The diameters of casing kukanganisa negoho patsime. The kukosha uyu, chikuru uwandu mvura uchagona kuwana. Kuderedza kuerera mwero vanofanira kutsanangura duku dhayamita, iro achakwanisa kugutsa zvinodiwa zvemhuri mvura. parameters izvi zvinodiwa zvakarurama kusarudza casing.

Peak mvura kunwa kuti nyika imba kana Villa inogona pakutsvaga pakuverenga nhamba zvakatinakidza rinodyiwa. Izvi zvingava kicheni, rangano kudiridza, muchina wokuwacha, uye kuchimbuzi. In Muchiitiko ichi, yepamusoro mvura kuparadzwa ndiko anenge 3 mamita ³ / h. Kana tiri kutaura pamusoro musha kana yokurenda, parameter ichi achizosiyana vari kuwanda H / 4 kusvika 8 mamita ^3.

Wakabata dhayamita kukarukureta

Kukarukureta kuti casing zvinofanira chinozoiswa, kuedza ngaaverenge dhayamita izvo zvichaita kuvimba submersible pombi michina. Kana mbiru iri munyika umo vodoraskhod iri vanenge 3 mamita ^{3 /} h, shandisa 75-mm pombi. Kana kuerera mwero ichiwedzerwa kusvika 8 mamita ³ / h, ari dhayamita ari pombi anofanira kusvika 102 mm. Dzimwe nguva zvinoitika kuti akasiyana aquifer yakawedzera simba kana kunofambira mberi mvura pamwero, mune ichi kana pombi iri nyere vanofanira agosungirirwapo.

Kuvasarudza nyere dhayamita nokuda 75mm ari pombi kunge sezvinotevera: 75 + 4 + 8 = 87. kupi 4 - ndiwo musiyano uri pakati mbiru uye zvokushandisa, nepo 8 - ndiyo pakukora nenyere rusvingo. Nokuti kuti casing ane mwero kukura, zvinokosha kusarudza parameters dziri pedyo rinowanikwa chete. Somuenzaniso, 87 kusvika 89 mm yakanyanyobatsira rakakodzera, 108 kana 114 mm.

Pasi yasarudzwa dhayamita raizofanira kushongedzera kutsime, musimboti ichi ichakurukurwa sendarama mari. Kana ukasarudza 102-mm pombi, kuti Masvomhu kunofanira kuitwa pamusoro apa nzira kwaari. To ichi anofanira akawedzera parameter 4 uye 8 mm, izvo achagamuchira 114 mm.

Zvisinei, pakusarudza casing nenyere iyi, 114 mm zvingaonekwa vaifarira, nyanzvi dzinokurudzira kuti kutenga wemari mutopota dhayamita, pakupedzisira zvinogona kuwana casing, iyo dhayamita izvo zvichisiyana 127 kusvika 133 mm.

Cementing ari casing

Cementing casing hungiso anogona kuitwa nomumwe zvirongwa anoverengeka. Wokutanga ainzi zvakananga uye kunosanganisira jekiseni kupinda mbiru pamwe musanganiswa anopfuura kune shangu. The mhinduro anopinda annular nzvimbo uye rizere kubva pasi kumusoro. Zano wechipiri inonzi neizvi dyisa musanganiswa uye kusiyana pemvura. The jekiseni sezvamunoita inodedera pasi.

Kana totaura muindasitiri scale, zvinonzi zvinowanzoshandiswa nenzira yokutanga. Panyaya iyi cementation rinoitwa imwe nhano, panguva iyo Vhoriyamu inotoda extruded zvakananga. Kana casing ane yakawanda urefu, kunge akarwawo maviri-Danho cementing. Kwakaita basa iri nyaya rakakamurwa zvikamu, akaita kushandisa humwewo michina.

Chimwe nzira cementing makabuda cuff, iro rinoshandiswa kana kudiwa kudzivirira dhiramu pamusoro kupinda kuti zvichachipedza. Oga cuff mudunhu akaiswa mu zvibereko inotungamirwa penguva. Pane nzira rokuzadza mhinduro zvakavanzika mbiru uye zvikamu, izvo dzinounzwa ari oga boka.

Kugadzirira zvokushandisa cementing

ungafanira zvinotevera midziyo yebasa iri cementing mbiru:

• cementing midziyo;
• simende-kuvhenganisa midziyo;
• cementing musoro;
• vachikanda plugs.

Cementing zvidzidzo zvinodiwa achigadzirira esimende uye kumanikidza mhinduro kupinda tsime zvaoma. Cement-nokusanganisa michina inoshandiswa chete zvinangwa, asi cementing musoro vanofanira pavaisukira mudende uye grouting kwemasvingo.

Plugs anoshandiswa kana uchida kushandisa maviri padanho cementing. Dzimwe nguva kunyange chiduku michina inodiwa pabasa, zvinoti:

• Usazviomesera simbi hoses;
• High kumanikidzwa taps;
• mano kuti kuparadzira mhinduro.

Ndezvipi zvinangwa cementing

Cementing zvinoitwa kubvisa mashoko kuchera mvura kubva annulus. The plugging Kugadzirisa achisimuka imwe pakakwirira, iro rinonyoreswa zviri rokutanga kukarukureta. cementing zvemichina anonyaradza:

• misha geza mvura;
• kudzivirira mhinduro kubva kuonana pakushambwa mvura;
• achizadza Upfu penguva mhinduro pamusoro wayo yose pakureba;
• chakanakisisa adhesion kuumba namatidza pamwe Houses to Rent masvingo.

Kana tsime casing achaparadzwa atadze qualitatively, izvozvo kuchawedzera hurefu pakati dambudziko zvivako uye kugadzirwa nguva, uyewo nokushanda.

The raizouya casing: gadziriro

Mazuva mashoma asati casing shutter pakushaiwa yayo kuzivisa rig. Buditsa yaifanira panguva chaiyo Tikapapfuura kana kondo. Zvakasimba rirege asunungurwa panguva buditsa casing.

On kuongorora nenyere pamberi kugadzwa anofanira zvakaongororwa deformation mapfundo, curvature kuparadzana mashoko, kuvapo notches uye vakatema kumugumo. The pombi inofanira zvakaongororwa roundness, uye ipapo ukapisa murwi pamusoro zambuko kuitira dzinza kutevedzana. Dzinza casing kunofanira kuitwa pashure vakaverengwa okunze uye simbi kuyera tepi.

gadziriro Upfu

Kuti tidzivise matambudziko panguva anoburukira mbiru, zvakakodzera kugadzirira wellbore. Types uye kwakaita basa achavaponesa mamiriro hunde, kureba uye kunzwisisa rakavhurika chikamu ari Geological chikamu. Zvakakodzera kuona zvikamu pane nematambudziko achideredza chokushandisa. Izvi zvingava pemidengerero inotungamirwa, constriction pamusoro mudende zvikamu mapazi uye inzwi.

Asati nokuputsa nzvimbo yacho Washing emura anofanira wosukurudzwa zvakanaka. Ya iyi inofanira kuva maviri kana kupfuura kutenderera. Panoperera washing emura inowedzerwa graphite kana mafuta kuti zviite anoburukira yacho casing.

wedzinza casing

Munyaya inotevera danho casing iri akatura kupinda zvakanaka chinangwa ichi: centralizers, scrapers uye turbulators. Panguva neugari, zvakakosha kuongorora kuchengetwa murayiro KUSHANDA mbiru, wakapiwa nemapoka vanoronga simba simbi nyere rusvingo ukobvu.

The tsime rokutanga ndiro chikamu nechezasi casing, rinosanganisira shangu. mbiru pasi zvinhu zvinofanira kupatsanurwa nokushandisa imwe nokuomesa noukama yakavakirwa epoxy nebwe. Kushandisa asiri kudzoka vharafu iyi, ndine chokwadi kuti ichokwadi kana tsime rine gasi zvinoratidzwa.

Pakazosvika wellhead iri hurongwa romugove nenyere, uye shabloniruyut zvavo vasati zveEl. Vanachandagwinyira cylindrical geji kunofanira nenyere kubva panaakabatanidzwa pamwechete. Achideredza casing, zvakakodzera kuchengeta nhoroondo stackable pombi kupinda chinhu nhamba, boka simba simbi mutopota urefu rusvingo ukobvu. Zvakakosha yokupedzisira chubhu urefu uye kwayo zvachose uremu.

mhedziso

Sezvo casing nenyere rinoshandiswa kubva dzakasiyana zvinhu, zvinogona mapurasitiki, huni, simbi uye asbestos simende zvigadzirwa. Plastic zvikamu vave kuwana kukurumbira, vakabatsira ichi rakaisvonaka unongotaura.