Kunzwisisa Magiredhi ePacker V6 kusvika kuV0 (Chikamu 2): Kutsanangura Kupatsanurwa kwe "Sealing Guardians" muDownhole kubva kuAPI 11D1 Standard

Munzira yekudzivirira pasi pevhu yekugadzira mafuta negasi,vapakejiZvishandiso zvikuru zvinodzivirira kufamba kwemvura inogadzirwa uye zvinovimbisa kuchengetedzeka kwenzvimbo dzemvura. Zvisinei, zvinodiwa pakushanda kwenzvimbo dzemvura zvinosiyana zvakanyanya mumamiriro akasiyana enzvimbo dzemvura: nzvimbo dzemvura dzisina kudzika dzinongoda kuvharwa kwemvura chete, nepo nzvimbo dzemvura dzine mvura dzakadzika zvakanyanya dzisingade dziviriro yekubuda kwemvura.

Muyero weAPI 11D1 weDownhole Tools—Packers and Bridge Plugs muPetroleum and Natural Gas Industry unotsanangura zvakajeka kuti ma packer grades anowedzera zvishoma nezvishoma kubva paV6 kusvika kuV0; nhamba yacho idiki, zvinodiwa pakushanda zvakanyanya—V6 ndiyo yekutanga, nepo V0 iriyo yepamusoro, ine giredhi rega rega rinoenderana nemiyero yakajeka yekuyedza uye mamiriro ezvinhu anoshanda.

Nhasi tiri kutsanangura hunyanzvi hwepamusoro, mamiriro ezvinhu anoshanda, uye zvinodiwa pakuyedza zveGiredhi V2, V1, uye V0 kuti tikubatsire kusarudza "muchengeti" akakodzera.

Kutanga, nzwisisa: Sei API 11D1 ichipakira "giredhi"? Kuoma kwematsime emafuta negasi hakufungidzirwi: matsime asina kudzika anogona kungotsungirira kumanikidzwa kwe10 MPa uye tembiricha ye50°C, nepo matsime egasi egungwa rakadzika achigona kupfuura 100 MPa mukumanikidzwa, mamwe matsime egasi anowanzopfuura 170°C mukudziya, uye matsime akaomarara anotarisana nenjodzi dzengura nguva dzose. Kusaenzanisa mupakiri wepasi netsime rine kumanikidzwa kwakanyanya (sekuti "kushandisa bhiza diki kudhonza ngoro inorema") kunogona kukonzera kutadza kushanda kwechisimbiso uye njodzi yekuputika; zvakasiyana, kushandisa mapakiri epamusoro-soro mumatsime enguva dzose kunotambisa mari.

Pamatsime ekugadzira gasi nematsime ekuisa jekiseni, API 11D1 inotsanangura zvinodiwa pakuyedza kusimbisa magiredhi matatu: V2, V1, uye V0.

Giredhi V2: Chikamu Chekupinda Chekuvharwa Kwegesi

Tsananguro yeUnyanzvi Hwakajairika: V2 inosanganisira kuyedzwa kwekuvharwa kwegasi kekutanga; ndiyo nhanho yepasi pekutanga yevanotakura gasi, nepfungwa huru ichitarisa kuvimbika kwekuvharwa kwegasi munzvimbo dzinoyerera mvura yakawanda.

Mamiriro Etsime Anoshanda

• Matsime akadzika (4,000–5,000 m)
• Kumanikidzwa kwekushanda ≤ 138 MPa (≈ 1,400 kgf/cm²)
• Tembiricha yekushanda ≤ 177°C
• Pakati nepakati: Kuyerera kwemagetsi akawanda nechiyero chemafuta egasi (GOR) > 500, ine huwandu hushoma hweH₂S (kumanikidzwa kwechikamu ≤ 0.07 MPa)
• Kuchinja-chinja kukuru kwesimba remagetsi (semuenzaniso, matsime ekugadzira mushure mekushandiswa kwetsika dzekupwanya)

Zviitiko Zvakajairika

Matsime egasi epamhenderekedzo yegungwa, matsime ekuvandudza ari mumatangi ane sarufa shoma.

Zvinodiwa paKuyedza

• Unofanira kutanga wapasa bvunzo yakazara yeV3
• Kuedza kuvharwa kwegesi: Uchishandisa nitrogen senzira yekudzivirira, bata kumanikidzwa pa80% yekumanikidzwa kwakayerwa kwemaminitsi gumi nemashanu; mwero wekubuda kwemvura ≤ 10 standard cubic centimeters per minute (sccm)
• Kuedzwa kwekuwedzera kwemutoro we axial: Shandisa simba re axial re ±100 kN, pamwe chete nekuyedzwa kwe pressure cycle
• Mushumo wekuyedza kuvharwa kwegesi unoratidza huwandu hwehuwandu hunofanira kupihwa

Giredhi V1: Yakagadzirirwa Nzvimbo Dzinoshanduka Zvakanyanya

Tsananguro yehunyanzvi: Zvichibva paV2, V1 inowedzera kutenderera kwekushisa uye kuyedzwa kwekubatanidza mutoro unochinja-chinja; inochinjika kumamiriro ekushanda akaomarara pasi pekumanikidzwa kwakanyanya/kupisa kwakanyanya, uye ndiyo sarudzo huru yematsime egungwa rakadzika/rakadzika zvakanyanya.

Mamiriro Etsime Anoshanda

• Matsime akadzika zvakanyanya (5,000–6,000 m)
• Kumanikidzwa kwekushanda ≤ 172 MPa (≈ 1,750 kgf/cm²)
• Tembiricha yekushanda ≤ 204°C (nzvimbo yekuchinja-chinja kwetembiricha ≤ 100°C)
• Pakati nepakati: Ine H₂S (chikamu chekumanikidzwa ≤ 0.5 MPa) uye CO₂ (chikamu chekumanikidzwa ≤ 8 MPa)
• Mitoro inochinja-chinja zvakanyanya (semuenzaniso, kupwanyika kwematsime egasi reshale rakatwasuka, kudedera kwetambo dzemachubhu egungwa rakadzika)

Zviitiko Zvakajairika

Matsime egasi reShale akatambanudzwa, matsime emafuta egungwa rakadzika, chikamu chekugadzirwa kwematsime egasi rine sarufa yakawanda.

Zvinodiwa paKuyedza

• Unofanira kutanga wapasa bvunzo yakazara yeV2
• Kuyedzwa kwetembiricha: Dzokera tembiricha kagumi pakati pe -29°C ne204°C, uchibata kumanikidzwa kwemaawa maviri nguva imwe neimwe pasina kubuda kwemvura.
• Kutenderera kwekumanikidzwa kunochinja-chinja: Kutenderera ka500 pakati pe0 ne100% yekumanikidzwa kwakayerwa, kusanganisira kutenderera kwekumanikidzwa kunochinja-chinja
• Zvinodiwa pakubuda kwegasi: ≤ 0.1 sccm Tevedzera kuwedzera/kukwenya kwetambo yechubhu (±50.8 mm) uye kuchinja kwe radial; mashandiro ekuvhara haachinji

Giredhi V0: "Muchengeti" Mukuru, Zero-Leakage Safety Baseline

Tsanangudzo yehunyanzvi: V0 ndiyo giredhi repamusoro muAPI 11D1; inofukidza zvinhu zvese zvebvunzo zvegiredhi repasi, pamwe ne "zero-bubble gas sealing" uye "pressure reversal testing" - ndiyo "nzira yekupedzisira yekudzivirira" kune nharaunda dzakaipisisa.

Mamiriro Etsime Anoshanda

• Matsime akadzika zvakanyanya uye anodziya zvakanyanya (> 6,000 m)
• Kumanikidzwa kwekushanda > 103 MPa, tembiricha > 177°C (nzvimbo ine kumanikidzwa kwakanyanya (HPHT))
• Pakati nepakati: Ine H₂S ine huwandu hwakawanda (chikamu chekumanikidzwa ≥ 1 MPa) uye CO₂ (chikamu chekumanikidzwa ≥ 10 MPa)
• Zvinoda kuvharwa kwechigarire (semuenzaniso, mabasa ekubvisa maburi emvura (P&A)) kana zvinodiwa zvakanyanya zvekuchengetedza (semuenzaniso, matsime ekurasa marara enyukireya)

Zviitiko Zvakajairika

Matsime egasi ane sarufa yakawanda muSichuan Basin, matangi egasi ane simba guru mugungwa, matsime egetsi ane simba guru.

Zvinodiwa Pakuyedza (Zviyero Zvakanyanya Kuoma)

• Unofanira kutanga wapasa bvunzo yakazara yeV1
• Kuvhara gasi risina mabubble: Uchishandisa helium senzira yekudzivirira, bata kumanikidzwa kwacho pa rated pressure kwemaminitsi gumi nemashanu; hapana kuungana kwemabubble mu graduated cylinder (kubuda kwemvura kuri kusvika zero)
• Kuedza kudzoreredza kumanikidzwa: Ita kudzoreredza kwenzira yekumanikidzwa kaviri pakumanikidzwa kwakanyanya, pasina kutadza kwechisimbiso
• Kudzika kwekupisa kwakawedzerwa: Inotonhorera nekukurumidza kubva pa204°C kusvika -29°C, chengeta kumanikidzwa, wozodziisazve; kuvhara kunoramba kuchishanda kwese kwese
• Tekinoroji yekuona kubuda kwemvura mu vacuum inofanira kushandiswa kuti ione kubuda kwemvura kwemhando yepamusoro + kwehuwandu

Nheyo nhatu dzeKudzivirira Njodzi dzeKusarudza

(1) Sarudza Giredhi V2 yemigodhi yegesi, Giredhi V1 yemigodhi yakakora, uye unofanira kusarudza Giredhi V0 yemigodhi yeHPHT;

(2) Simudzira giredhi zvichibva pamitoro inochinja-chinja: Kune matsime ane mashandiro ekupwanyika/kukonzera acid, simudzira giredhi repasi nedanho rimwe (semuenzaniso, V2 → V1);

(3) Tarisa kufukidza kwezvitupa: Giredhi V0 rinogona kufukidza zvese zviitiko zvegiredhi repasi, asi iva nechokwadi chekuti mushumo webvunzo une parameters dzemamiriro etsime (semuenzaniso, tembiricha, kumanikidzwa, pakati nepakati).

Chiyeuchidzo Chikuru: Giredhi "Ukama hweKubatanidzwa"

API 11D1 inotsanangura zvakajeka kuti ma packer emhando yepamusoro anovhara otomatiki mashandiro emhando yepasi. Semuenzaniso: Chigadzirwa chakabvumidzwa cheGiredhi V0 chinogona kushandiswa zvakananga muzviitiko zveGiredhi V1–V6; zvisinei, chigadzirwa cheGiredhi V5 hachifanirwe kushandiswa mumatsime egasi anoda kuvharwa kweGiredhi V2.

• Kusarudza mhando chaiyo yemapaketi ndiko kwakakosha pakuenzanisa kuchengetedzeka, kushanda zvakanaka, uye mutengo.

Zvinotarisirwa kuti dudziro iyi yakagadziridzwa ichakubatsira kudzivirira kusanzwisisana pakati pemagiredhi, zvichiita kuti nzvimbo yega yega ishandise michina yekuvharira pasi "inoenderana nehukuru".

Bata nesu:Jessie Zhou

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