I-MPD (i-pressure drilling) Incazelo ye-IADC iyinqubo yokumba eguquguqukayo esetshenziselwa ukulawula ngokunembile iphrofayili yengcindezi yonyaka kuwo wonke umthombo. Izinjongo ziwukuthola imikhawulo yendawo yengcindezi ye-downhole kanye nokuphatha iphrofayili ye-annular hydraulic pressure ngendlela efanele. I-MPD ihloselwe ukugwema ukungena okuqhubekayo koketshezi okwakheka phezulu. Noma yikuphi ukungena okuhambisana nomsebenzi kuzogcinwa ngokuphephile kusetshenziswa izinqubo ezifanele.
Inkampani yethu njengomhlinzeki wesevisi oqeqeshiwe wobuchwepheshe be-MPD (Managed Pressure Drilling) ku-CNPC kanye ne-CNOOC, kusukela kwethulwa izinsiza zobuchwepheshe ze-MPD yase-Halliburton e-China ngo-2010, siqongelele ingqikithi yezinsiza zobuchwepheshe ze-MPD ezingama-25 ze-CNPC eminyakeni eyi-13 edlule. iminyaka, kuhlanganise nemithombo engu-8 enobubanzi obungaphezu kwamamitha angu-8000.
Njengamanje, inkampani yethu inethimba lenkonzo yezobuchwepheshe labasebenzi abangaphezu kuka-60, okuhlanganisa onjiniyela abangu-17 abanolwazi lweminyaka engaphezu kwe-10 kumasevisi e-MPD kanye nonjiniyela abangama-26 abaneminyaka engaphezu kwengu-5 yesipiliyoni se-MPD. Ima njengomunye wabahlinzeki benkonzo yobuchwepheshe be-MPD enamandla kakhulu e-China.
Izinzuzo ze-MPD
| Impahla | Zuza | Umphumela | Phawula |
| I-Loop Circuit evaliwe | Izinguquko ekuphumeni komthombo zingase zibonakale ngokushesha | Yehlisa ukungaqiniseki | Ukukhahlela nokulahlekelwa kutholwe emizuzwini embalwa |
| Iqukethe igesi yokwakheka kanye noketshezi lwe-downhole | Thuthukisa i-HSE | Mancane amathuba okuthi uketshezi oluyingozi luchithekele endaweni eyisitezi | |
| Yenza izivivinyo ze-FIT & LOT ngenkathi ubhoboza | Ulwazi olwandisiwe mayelana nemithetho yengcindezi | Amathuba amancane okubhekana nezimo eziyingozi | |
| Faka i-backpressure | Lungisa ingcindezi ye-wellbore emizuzwini embalwa | Yehlisa isikhathi esichithwa emicimbini yokulawula umthombo, uthuthukise i-HSE | Asikho isidingo sokuzungeza odakeni olusha |
| Amamajini amancane | Geza amafasitela odaka amancane | ||
| I-Continuous CirculationSystem | Gwema ukuphakama kwengcindezi lapho uqala ukujikeleza, gcina izimo ze-borehole ezizinzile lapho uxhuma | Thuthukisa i-HSE, unciphise amathuba okulahlekelwa kahle | Ikhwalithi ye-borehole eyenziwe ngcono, gwema ukwakheka, gwema ukulahleka kwegazi |
| Ukumba izimo ezilinganisene kakhulu (umehluko ophansi wengcindezi phakathi kwe-borehole nokwakheka) | Khulisa i-ROP | Yehlisa ukusetshenziswa kwezindleko | Ngenxa yokunciphisa amandla "Chip Hold Down". |
| Khulisa ukuphila kancane | Yehlisa izindleko ezincane kanye nesikhathi esichithwe ukukhubeka ngaphandle kwembobo | I-WOB encane, mancane amathuba okuthi "ibhola elincane" livele, ukuguga kancane kubhithi | |
| Nciphisa ukulahlekelwa uketshezi | Yehlisa izindleko zodaka | Amathuba amancane okudlula ukucindezela kokuphuka ngesikhathi sokumba | |
| Yehlisa ukwenzeka kwezehlakalo zokulahlekelwa/zokukhahlela | Thuthukisa ukuphepha nesikhathi esichithwa ekulawuleni imicimbi yokulawula kahle | Ngenxa yokulawula okukhulu kombuso wengcindezi kanye namamajini aphansi | |
| Nweba amaphuzu e-casing, setha ama-casings ajule | Inombolo encishisiwe yezintambo ze-casing kahle | ||
| Yehlisa ukulimala kokwakheka | Thuthukisa ukukhiqiza, unciphise isikhathi esichithwa kanye/noma uthuthukise ukusebenza kahle kwemisebenzi yokuhlanza | Umphumela wokuncishiswa kwamanzi okwakheka kanye nokuhlasela kwezinhlayiyana | |
| Yehlisa ukwenzeka kwezinkinga zokunamathela ezihlukene | Yehlisa isikhathi osichitha usebenza, ukudoba, ukuchezuka, kanye nezindleko zamathuluzi ashiywe phansi | Amandla ahlukene asebenza kuyunithi yezinhlamvu ancishisiwe |
Ukwethulwa kwezisetshenziswa ze-MPD:
Isikhungo Sokulawula Ingcindezi
Ubufakazi bokuqhuma ngaphansi kwengcindezi ene-CCS kanye nesitifiketi somphakathi sokuhlukaniswa kwemikhumbi ye-DNV.
☆ 316L iphaneli yangaphakathi yensimbi engagqwali, isakhiwo esihlangene, nokusebenza okuphelele.
☆Ubukhulu obuncane bobukhulu, ububanzi, nobude: 3 amamitha x 2.6 amamitha x 2.75 amamitha.
Okuzenzakalelayokuminyanisauhlelo
Unesitifiketi se-China Classification Society (CCS).
☆Ingcindezi elinganiselwe: 35 MPa, Ububanzi: 103 mm
☆Ikhophi eyodwa eyinhloko kanye nekhophi eyodwa
☆Imitha yokugeleza kwenqwaba enembayo ephezulu: Ukuqapha kwesikhathi sangempela sokugeleza kwe-outlet.
Uhlelo lokuthola nokulawula idatha ye-PLC
Unesitifiketi se-China Classification Society (CCS).
Ibhokisi lokusabalalisa isilinganiso sokuvikela ukuqhuma ExdⅡBT4, isilinganiso sokuvikela amagobolondo IP56.
Isiteshi sokulawula i-hydraulic
☆ Ifakwe esizeni kanye nemisebenzi yokulawula okuzenzakalelayo kude.
☆ Ukunikezwa kwamandla: Izindlela ezintathu - zikagesi, i-pneumatic, ne-manual.
☆ Ibhodlela le-Accumulator elinesitifiketi se-ASME.
Ikhanda lokulawula elijikelezayo
☆Thekelisa i-flange engu-17.5, imodeli ye-flange ephansi engu-35-35.
☆ Ububanzi 192/206mm, ingcindezi isilinganiso 17.5MPa.
☆Ingcindezi yokuvala i-clamp yi-21MPa, ingcindezi yokuvula ingu-≤7.5MPa, ingcindezi yepompo yomjovo kawoyela ingu-20MPa, amandla aphelele ngu-8KW.
Uhlelo lwesinxephezelo se-backpressure
☆ Imodi yeDrayivu: Injini yomlilo yangaphakathi eshayelwa.
☆Ingcindezi yokusebenza ephezulu: 35 MPa.
☆Ukususwa: 1.5-15 l/s
I-PWD (Ingcindezi Ngenkathi Umba)
☆Ingcindezi yokusebenza ephezulu
☆Izinga lokushisa eliphezulu lokusebenza: 175℃.
Isikhathi sokuthumela: Dec-01-2023