Puna casing

whakamahia te faaahuraa o te puna te i te wiri whenua i te reira. E tito nga whāinga o tenei huānga ki roto i te haamaniiraa o te oneone roto. Tāuta i te tīwae i roto i te poka te tīmatanga tāne.

I te wā whakamutunga ki tonu te wāhi i waenganui i te taiepa wellbore me te casing te ki raima. He aha ka taea e koe te ako atu i raro. haere tahi tāutanga atu o te taputapu e te tāutanga o ngā pūrere ki te casing, e me e tīpakohia tango ki pūkete nga tikanga o te kaupapa. He ka waiho he diameter me te poka rahi whakaritea.

Me pēhea te ki te whiriwhiri i te diameter

Ko te diameters o te casing pā te hua o te poka. Ko te atu tenei uara ko, ka e taea ki te tiki i te nui te nui o te wai. Ki te whakaiti i te auau rere kia tautuhi te diameter iti, e ka e taea ki te makona nga hiahia o te mau utuafare i roto i te wai. He tika ēnei tawhā mo te kōwhiringa tika o te casing.

kohi wai Peak mo te whare whenua pātū ranei e taea te whakaritea mā te tātai i te maha o ngā o te kohi. kia he kīhini, wahi irrigation, mīhini horoi me te kaukau tenei. I roto i tenei tauari, ko āhua te kohi wai tihi 3 m ³ / h. Ki te korero tatou e pā ana ki te whare pahī ranei, ka rerekē tenei tawhā i te whānuitanga o te 4 ki te 8 m ³ / h.

Kia mau ki te diameter tātaitanga

kia whakatinana tātaitanga o casing, e ngana ana ki te tātai i te diameter o e ka whakawhirinaki ki runga ki te taputapu papu submersible. Ki te kei te tīwae kei roto i te whenua te wahi he āhua vodoraskhod 3 m ^{3 /} h, te whakamahi i 75-mm papu. Ki te te nui haere te auau rere ki 8 m ³ / h, kia tae te diameter o te papu 102 mm. I te tahi taime tupu te reira e nui haere te aquifer rerekē te taumata wai hihiri pateko ranei, i roto i tenei take i te papu i roto i te putorino kia whakairi.

Te tīpako putorino diameter mo 75mm o te papu me kia rite whai: 75 + 4 + 8 = 87. hea 4 - ko te āputa i waenganui i te tīwae me te taputapu, notemea 8 - ko te matotoru o te pakitara okana. Hoki te take e whai āhuatanga paerewa te casing, he mea e tika ana ki te tīpako i te tawhā e he tata ki te kotahi tātai. Hei tauira, he tino pai 87 ki te 89 mm, 108 114 ranei mm.

I raro i e Me te diameter tīpakohia ki te pīkau i te puna, ka e whakaaro tenei whakatinanatanga rite te economical tino. Ki te whiriwhiri koe 102-mm papu, me kia kawea te tātai i te taha o te tukanga i runga ake ki a ia. Ki tenei me te tāpiri i te tawhā 4 me 8 mm, e ka riro 114 mm.

Te kōwhiri i te putorino casing i roto i tenei take, kia meinga 114 mm, Heoi, tūtohu tohunga ki te hoko kararehe putorino diameter, i roto i te mutunga e taea te whiwhi i te casing, te diameter o e rerekē i 127 ki te 133 mm.

Cementing te casing

kia kawea ai Cementing aho casing i na tetahi o te maha kaupapa. huaina ana te tuatahi ko tika, me te whai wāhi werohanga ki te tīwae ki te ranunga haere ki te hu. Ko te otinga e tomo te wāhi annular me te ki tonu i te raro ake. huaina te kaupapa tuarua ko te ranunga kai whakamuri, me te rerekē i te mata. oho te hanganga patia te whakararo.

A, no te haere mai te reira ki te tauine ahumahi, Kei te tino maha whakamahia ai e te tikanga tuatahi. I roto i tenei take kawea te whakapiripiringa i roto i te kotahi taahiraa, i roto i nei extruded te rōrahi o te otinga te tika. A, no te kua he roa nui te casing, kua haere ki te rua-atamira cementing. Kei te wehea Scope o te mahi i roto i tenei take ki wā, i mahi te whakamahi i ngā taputapu kē.

He tikanga atu o te cementing protrudes soté, whakamahia nei te ka ki te hiahia tiaki te oko ki te kătahi o otinga. Tu ke rohe soté tūnga i roto i te wā hanganga hua. E ara o te whakakī otinga huna tīwae me ngā wāhanga, e kua tohaina i roto i te rōpū motuhake.

Teuteu te taputapu mō te cementing

kia hiahia koe te taputapu e whai ake nei mō te mahi i runga i cementing tīwae:

• cementing taputapu;
• sima-ranu taputapu;
• cementing upoko;
• maka ana kōhao.

E hiahiatia ana ngā wae Cementing mo te faaineineraa o te raima, me te akina te otinga ki te poka i raro i te pēhanga. E whakamahia mihini sima-ranu mo te taua take, engari e hiahia ana te matenga cementing ki horoi te oko, me te grouting o nga taiepa.

E whakamahia kōhao ki te hiahia koe ki te huihui ki te cementing rua-atamira. taputapu I te tahi taime ara iti e hiahiatia ana mo te mahi, ara:

• ngongo whakarewa ngāwari;
• körere pēhanga High;
• whakaaro mō te tohatoha o te otinga.

He aha e nga whāinga cementing

meatia Cementing te ki teke'i te wai kōhao i te annulus. putanga mai o te otinga plugging ki tetahi he teitei, rēhita nei i roto i te tātaitanga tuatahi. cementing hangarau whakarato:

• displacement wai horoi;
• tiaki i te otinga i te whakapā atu ki te horoi wai;
• whakakī i te oko otinga wā ki runga i tona roa katoa;
• adhesion pai ki te rata whakapiri ki te taiepa borehole.

Ki te ka timahia te casing pai qualitatively, ka whakanui i te reira i te pikinga o nga hanganga whakakaupapa me te wa production, me te mahi.

Ko te hekenga iho o te casing: teuteu

He ra torutoru i mua i te casing marumaru tona tikanga ki te whakaora i te Rig. kia kawea rere atu i pahemo whakauaua motuhake i te kareni ranei. e kore kaha e rukea i roto i casing rere.

I whakamātautau o te putorino i mua i te tāutanga kia tirohia mo te deformation o hononga, curvature wehenga o te rauemi, te aroaro o kāniwha, me te tapahia pito. Me takina te putorino ki roundness, a ka tāpae i runga i te piriti i roto i te heketanga raupapa raupapa. Me kawea Descent casing i muri i te mea timatanga tauanga me te parahi whanganga rīpene.

faaineineraa o te oko

I roto i te tikanga ki te karo i pōauautanga i roto i te heketanga o te tīwae, he mea e tika ana ki te faaineine i te wellbore. ka whakawhirinaki Types me hōkai o te mahi i runga i te āhua o te kātua, te roa me te matatini o te wahi tuwhera o te wāhanga arowhenua. He mea tika ki te whakatau i te wā i reira i reira he fifi i roto i tukupu ana i te taputapu. ai ēnei hei karapiti hanganga, constriction o te wāhanga rohe oko, me te kōpapa.

I mua i te rapataumata āhuatanga o te horoi wai kia pai horoi. kia te roanga o tenei tukanga e rua atu huringa ranei. I te mutunga o te horoi wai e tapiritia ki graphite hinu ranei ki te whakahaere i te heketanga o te casing.

casing heketanga

I roto i te taahiraa i muri mai kei te tuku iho te casing ki te poka mo tenei whakaaro: centralizers, waero, me turbulators. I roto i te kāwai, he mea nui ki te aroturuki i te haapa'oraa o te tīwae kia kato, homai e ngā rōpū whakamahere matotoru kaha maitai pipe taiepa.

Ko te puna tuatahi ko te wahi o raro o te casing, e ngā he hu. Me te tukatuka i te faaohiparaa i te hinu pakeke e hāngai ana i runga i epoxy kapia nga mea timatanga tīwae raro. Mā te whakamahi i te piha hoki-kore i roto i tenei take, Ko ahau mohio e he pono ki te he whakaaturanga hau te puna.

E te wellhead i te raupapa o te putorino supply, me o ratou shabloniruyut i mua i escalating. Me kia mehua porotakaroa mārō i roto i te putorino i te hononga. Tukupu te casing, he mea e tika ana ki te pupuri i pūkete o putorino stackable tomo te nama take, kaha rōpū matotoru taiepa roa maitai putorino. Mea nui te roa ngongo whakamutunga, me tona taimaha katoa.

mutunga

Ka rite ki te whakamahia te te putorino casing i ngā rauemi rerekē, ka taea e te mea kirihou, te rakau, te maitai me te hua papa kiripaka sima. Kua wahi kirihou whiwhi i roto i rongonui, wāhi ki tenei mahi pai.