Kubowola kwa MPD (kubowola kwamphamvu) Tanthauzo la IADC ndi njira yoboola yomwe imagwiritsidwa ntchito kuwongolera ndendende mbiri yapakatikati pa chitsime chonse. Zolinga zake ndikuwonetsetsa kuti kutsika kwamphamvu kwamalo apansi ndi kuyang'anira mbiri ya annular hydraulic pressure profile moyenerera. MPD cholinga chake ndi kupewa kuchulukirachulukira kwamadzi opangira pamwamba. Kuchuluka kulikonse komwe kungachitike pa ntchitoyi kudzasungidwa mosamala pogwiritsa ntchito njira zoyenera.
Kampani yathu monga othandizira oyenerera paukadaulo wa MPD (Managed Pressure Drilling) kupita ku CNPC ndi CNOOC, chiyambireni kukhazikitsidwa kwaukadaulo kwa Halliburton's MPD ku China mu 2010, tapeza ntchito 25 zokhazikika zaukadaulo za MPD za CNPC m'zaka 13 zapitazi. zaka, kuphatikiza zitsime 8 zozama zopitilira 8000 metres.
Pakadali pano, kampani yathu ili ndi gulu laukadaulo la ogwira ntchito opitilira 60, kuphatikiza mainjiniya 17 omwe ali ndi zaka zopitilira 10 pantchito za MPD ndi mainjiniya 26 azaka zopitilira 5 za MPD. Imayimilira ngati imodzi mwamautumiki aukadaulo amphamvu kwambiri a MPD ku China.
Ubwino wa MPD
| Katundu | Pindulani | Zotsatira | Ndemanga |
| Yotsekedwa Loop Circuit | Kusintha kwa kutuluka m'chitsime kumatha kuzindikirika nthawi yomweyo | Amachepetsa kusatsimikizika | Kukankha ndi kuluza kwadziwika pakapita mphindi zochepa |
| Khalani ndi mpweya wopangira komanso zakumwa zapabowo | Kupititsa patsogolo HSE | Mpata wochepa wa madzi owopsa atayikira pazitsulo | |
| Chitani mayeso a FIT & LOT mukubowola | Chidziwitso chowonjezereka cha machitidwe okakamiza | Kuchepa mwayi wokumana ndi zowopsa | |
| Ikani backpressure | Sinthani kuthamanga kwa Wellbore mu mphindi zochepa | Kuchepetsa nthawi yogwiritsidwa ntchito pazinthu zowongolera bwino, kusintha HSE | Palibe chifukwa chozungulira m'matope atsopano |
| Mitsinje yaying'ono | Dulani mawindo amatope opapatiza | ||
| Continuous CirculationSystem | Pewani kuthamanga kwamphamvu mukayamba kuzungulira, sungani malo otsetsereka pamene mukulumikiza | Sinthani HSE, kuchepetsa mwayi wotaya bwino | Kuwongolera bwino kwa chitsime, pewani mapangidwe, pewani kufalikira kwa madzi |
| Kubowola moyandikana kwambiri (kutsika kwapakati kusiyana pakati pa borehole ndi mapangidwe) | Kuwonjezera ROP | Chepetsani kuwononga ndalama | Chifukwa cha kuchepa kwa mphamvu za "Chip Hold Down". |
| Onjezerani moyo pang'ono | Chepetsani kuwononga ndalama pang'ono komanso nthawi yomwe mumagwiritsa ntchito kukudumphadumpha | WOB yocheperako, mwayi wochepera "kuthamanga pang'ono" kuchitika, kuchepera pang'ono | |
| Chepetsani kutayika kwamadzimadzi | Chepetsani ndalama zamatope | Zocheperako kupitilira kuthamanga kwa fracture pakubowola | |
| Chepetsani zochitika zotayika/kukankha | Kupititsa patsogolo chitetezo ndi nthawi yogwiritsidwa ntchito poyang'anira zochitika zowongolera bwino | Chifukwa cha kulamulira kwakukulu kwa kayendetsedwe ka mphamvu ndi malire otsika | |
| Wonjezerani malo osungira, ikani zosungiramo mozama | Kuchepetsa chiwerengero cha zingwe za casing bwino | ||
| Chepetsani kuwonongeka kwa mapangidwe | Limbikitsani zokolola, kuchepetsa nthawi yogwiritsidwa ntchito komanso/kapena kupititsa patsogolo ntchito zoyeretsa | Chotsatira cha kuchepa kwa mapangidwe a madzi ndi kuwukira kwa tinthu | |
| Kuchepetsa kupezeka kwa zovuta zomata mosiyanasiyana | Chepetsani nthawi yogwiritsira ntchito chingwe, kusodza, kusokoneza, ndi mtengo wa zida zomwe zatsala pang'ono | Mphamvu zosiyana zomwe zimagwira pa chingwe zimachepetsedwa |
Chiyambi cha Zida za MPD:
Pressure Control Center
Umboni wa kuphulika pansi pa kukakamizidwa kwabwino ndi CCS ndi DNV ship classification society certification.
☆ 316L chitsulo chosapanga dzimbiri chamkati chamkati, kapangidwe kakang'ono, komanso magwiridwe antchito.
☆Miyezo yocheperako muutali, m'lifupi, ndi kutalika: 3 metres x 2.6 metres x 2.75 metres.
Zadzidzidzikutsamwitsadongosolo
Ali ndi chiphaso cha China Classification Society (CCS).
☆ Kuthamanga kwake: 35 MPa, Diameter: 103 mm
☆ Choyambirira chimodzi ndi chosunga chimodzi
☆ Miyendo yolondola kwambiri yothamanga kwambiri: Kuwunika kwenikweni kwamayendedwe otuluka.
PLC data acquisition and control system
Ali ndi chiphaso cha China Classification Society (CCS).
Bokosi logawira chizindikiro chosaphulika ExdⅡBT4, chitetezo cha zipolopolo IP56.
Ma hydraulic control station
☆ Zokhala ndi ntchito zapatsamba komanso zowongolera zakutali.
☆ Mphamvu zamagetsi: Mitundu itatu - magetsi, pneumatic, ndi manual.
☆ Botolo la accumulator lokhala ndi chiphaso cha ASME.
Rotary control mutu
☆ Tumizani flange 17.5, mtundu wapansi wa flange 35-35.
☆ Diameter 192/206mm, kuthamanga kwa 17.5MPa.
☆ Kutsekera kutsekeka kwa clamp ndi 21MPa, kutsegula kuthamanga ndi ≤7.5MPa, kuthamanga kwa mpope wamafuta ndi 20MPa, mphamvu yonse ndi 8KW.
Backpressure compensation system
☆ Njira Yoyendetsa: Injini yoyatsira yamkati yoyendetsedwa.
☆ Kuthamanga kwakukulu kogwira ntchito: 35 MPa.
☆ Kusamuka: 1.5-15 l/s
PWD (Kupanikizika Pamene Mukubowola)
☆Kuthamanga kwambiri kwa ntchito
☆ Kutentha kwakukulu kogwira ntchito: 175 ℃.
Nthawi yotumiza: Dec-01-2023