Ngā Hua
Utauta mira Wāhanga Anga API 7-1
Kōtaha hua
Ko te mira wāhanga he momo taputapu whakatuwhera matapihi anga e whakauru ana i ngā mahi tapahi me te mira anga. Ka oma te mira wāhanga ki roto i te anga me te BHA, ka tapahia te anga i te tūranga kua tohua i te tuatahi. Kia tapahia rawatia te anga, ka mira tika mai i tēnei tūranga. Kia tae ki tētahi hohonutanga, ka oti te mahi whakatuwhera matapihi anga. He ngāwari te hanganga o te mira wāhanga, he watea hoki te whakahaere, ā, he tino whai hua tēnei taputapu whakatuwhera matapihi anga.
I taua wā anō, ka taea e te mira wāhanga te kōpeke me te wero i te sima i roto i te mahi whakarērea puna, ka taea ai te whakapiri tika i te sima ki te hanganga i tawhiti i roto i te 360 nekehanga. Ka taea e te sima te tomo ki te puna i runga i te porosity me ngā pakaru o te hanganga, ā, he pai ake te pānga puru i te kōpeketanga o te sima i muri i te poka.
Te kaupapa mahi
I muri i te tukunga o te mira wāhanga ki te tūranga kua tohua i roto i te anga me te BHA, tīmatahia te tēpu hurihuri, tahurihia te papu, ka panaia te piston i roto i te taputapu ki raro e te pēhanga, ka panaia ngā mata tapahi e te kōne o raro o te piston kia tuwhera, ka whakatika i te kōhao tuwhera. Ina tuwhera ngā mata tapahi ki te diameter mōrahi, ka oti te whakatika i te kōhao tuwhera. I raro i te pēhanga papu tonu, ka taea te whakatuwhera i te mata me te huri tika i te kōhao. I muri i te whakamutua o te papu, ka tautuhia anō te piston i raro i te mahi a te puna, ā, ka hoki aunoa ngā mata tapahi.
Ngā āhuatanga o te hua
(1) Te hoahoa ā-mīhini, te hanganga māmā me te whakahaere ngāwari
(2) He pai te iti o te pēhanga tīmatanga me te kaha tautoko nui o te mata mō te tapahi anga;
(3) Mā te hoahoa puna kaha teitei ka taea te hoki aunoa i te taputapu tapahi i muri i te tapahi;
(4) He āwhina te hoahoa o te poraka aukati me te pine ki te akiaki i te taputapu kia hoki whakamuri;
(5) He whānui te mata, ā, ka taea te whakamahi ki te anga kotahi me te matotoru pakitara rerekē;
(6) He mea hanga te mata o te mata ki te tungsten carbide kounga teitei, ā, he rite tonu te tukanga whakarewa o te Bake, he pai te tapahi me te roa o te ora.
Ripanga rahi o te mira wāhanga
Ngā taputapu taurite - Mira whakarara kounga teitei
He mea hanga katoa ngā taputapu mira ki te koranu tungsten carbide kounga teitei me te hangarau whakarewa rite tonu a Baker Hughes. Ko te whāinga o tēnei raupapa mira he whakahoki katoa i te kōwhiringa rauemi, te hoahoa hanganga me te tukanga whakarewa a Baker Hughes, kia rite ai te kounga hua ki a Baker Hughes.
2. Kōtaha mira tap karaehe teitei
ka taea te whakaputa i te mira taper kounga teitei me te diameter o waho mai i te 76 mm ki te 445 mm. Ko te maitai koranu kounga teitei te tinana matua, e taea ai te tukatuka i ngā poka wai nui kia pai ai te tukunga o ngā para mira. I taua wā anō, e ai ki ngā hiahia motuhake o ngā kiritaki, ka taea te hoahoa i te hanganga hua kia tutuki ai te mahi whakamahinga pai rawa atu.
3. Ripanga rahi o te mira whakarara
Hanganga hua
1. Ko te wāhanga o te mira ko ngā wāhanga e whai ake nei: te hononga o runga, te tinana matua, te piston, te nozzle, ngā mata tapahi me te koeko aratohu, me ētahi atu.
III. Ngā painga hangarau o te mira wāhanga Petrozhr
1. I hangaia ki te tungsten carbide kounga teitei
Ko ngā mata mira wāhanga i hangaia e tā mātou kamupene he whai ake nei ngā painga:
(1) He tere ake ngā mahi mira me te tapahi i ngā mata noa;
(2) Whakaitihia te pēhanga keri e hiahiatia ana mō te tapahi;
(3) He ōrite ngā tohu niho, ā, kāore he mata o ngā arawhata e puta ana;
(4) He ōrite ake te āhua o ngā para e puta mai ana;
(5) He teitei ake te pakeke o ngā rauemi mata, ā, he whaitake te hanganga. I te wā e mahi ana, he tapahi whakarewa, ehara i te huri whakarewa.
2. Tirotiro pakari mō ngā rauemi mata
Ka tukuna te tungsten carbide i whiriwhiria e tā mātou kamupene ki te tari whakamātautau ngaio hei tirotiro i muri i te taenga mai o ia puranga. Hei whakarite kia tutuki i te pakeke o te koranu me ētahi atu tohu ngā whakaritenga whakaputa a te kamupene.
3. Tukanga whakarewa tino pai
Ka whakamahia e mātou te kaimahi whakarewa matua o mua o Baker Hughes, ā, ka whiriwhiria e mātou ngā taputapu whakarewa me ngā rauemi āwhina ōrite i roto i te awheawhe o Baker Hughes hei whakatutuki i te whakaputanga o te hangarau whakarewa Becker i roto i ngā tukanga me ngā taputapu.
Hei whakaiti i te rerekētanga o ngā taputapu nā ngā huringa pāmahana i mua atu, i muri hoki i te whakarewanga, ka whakatūhia e mātou he pūnaha whakamarumaru whakarewa hei whakarite i te pumau o te āhua o te hua me te whai huatanga o te mahi.
IV. Te tukanga whakahaere o te mira wāhanga
Te whakarite i te poka:
1. Whakatikahia te anga. Whakatikahia te anga o raro o te poka ki te mira taper, ki te mīhini hanga anga rānei.
2. Te Horoi i te Puna. Horoia te hinu mata, ētahi atu wai rānei i te puna ki te wai ma.
3. Te waru i te anga, i te poka rānei. Me mahi te waru me te nekeneke o ngā paipa mā te whakamahi i te waru paerewa me te diameter nekeneke kia 20 mita i raro i te tūranga mira wāhanga.
4. Whakaritea te wai mira. Mā ōna āhuatanga maha ka taea te pupuri i te kaha ki te kawe i ngā para rino.
Whakamātautau whenua:
1. Whakamātauria te pono o ngā taputapu;
2. Ka whakamātauria te panoni o te pēhanga papu ina whakatuwheratia ngā mata tapahi, ā, koinei te pūtake mō te whakatau mēnā kua tapahia katoatia te anga o raro o te poka.
Kōwhiringa tūranga mira:
1. Me whakapiri pai te sima i waho o te anga mira wāhanga.
2. Āta karohia te tūranga e nekeneke ana, e rerekē ana rānei te āhua o te anga. Mena he tūranga pēnei, me mahi te mahi 30-40m i runga ake i te tūranga. Ā, ko te tīmatanga o te mahi tapahi me 1-3m i runga ake i te hononga tata.
3. Me waiho te pute ki raro i te rua. Ko te tikanga, me neke atu i te 100m te roa o te pute.
Te tapahi i te anga:
① Whai muri i te hono i te taputapu ki te BHA me te rere ki raro ki te tūranga mira wāhanga, tīmatahia te tēpu hurihuri hei whakatau i te tūranga hononga anga e ai ki te rekoata anga (tuhi), ka whakaheke i te taputapu ki te 1-3m i runga ake i te hononga me te parai tata.
② Tīmatahia te tēpu hurihuri i te tuatahi, ka whakanuia te tere hurihuri ki te 50-60 rpm, ka tīmata i te papu, ka āta whakanuia te nekehanga, kia piki ake ai te pēhanga papu. I tēnei wā, ka piki te pēhanga papu mai i te iti ki te nui, ka āta piki haere ki te 10-12 mpa.
③ Me tapahi tonu te anga mō te 20-45 meneti. Ina heke ohorere te pēhanga o te papu mā te 2-5mpa, ka tapahia te anga. Kia tuwhera rawa te tinana o te kaitapahi, puritia te tūranga tapahi ki tēnei tūranga mō te 30 meneti i muri i te tapahi, ā, me whakanui haere i te nekehanga kia tino hanga te whati.
Te anga mira:
Ka taea te whakanui haere i te WOB i muri i te tapahi i te anga. Ka whakahaeretia i waenga i te 10-25kn, ka whakanuia te tere hurihuri ki te 80-120r/min, ā, ka whakahaeretia te pēhanga papu i roto i te 10MPa kia taea ai e te nekehanga hurihuri te kawe i ngā paru rino. Ina tata ki te 0.5m ia wāhanga, ka taea te keri i te 1m mō te kotahi te riming me te tohanga, kia pai ai te hoki mai o ngā paru rino i mirahia mai i te wāhanga mā roto i te porowhita. I muri i te 1-2 huringa huringa, keri anō kia haere tonu ai te hanga me te mira.
[I roto i te tukanga, me whakarite tika te mahi paru me te whakanui ake i te nekehanga; i te wa ano, nekehia te taputapu keri me te whakarite i te tohanga kia hoki katoa mai ai nga maramara rino me te aukati i te kohikohinga paru]
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