Izizathu kunye nezisombululo zokulahlekelwa yi-WOB Transfer kwi-Drilling

1. Ingcamango, Izinto Ezingaqhelekanga kunye neengozi zokulahleka kokudluliselwa kwe-WOB

Ingcamango:Ngexesha lokubhoboza, ukungqubana okugqithisileyo phakathiumtya wokubholakwaye udonga olune-wellbore luthintela ubunzima kwi-bit (WOB) ukuba budluliselwe kwi-drill bit—endaweni yoko, yonke i-WOB ityiwa yi-drill string. Oku kubonakala ngathi akukho santya sokungena nangona i-WOB inyukile, akukho xinzelelo lwangasemva, kunye ne-torque ephantsi. Isisombululo siquka ukunciphisa isantya sokujikeleza kunye nokunyusa kancinci i-WOB (ngelixa kuqinisekiswa ukuba iyahambelana namandla oxinzelelo lwe-drill string) de i-torque inyuke ngequbuliso kwaye kuvele uxinzelelo lwangasemva kwi-WOB. Emva kokubhoboza i-joint nganye, kufuneka i-reaming ephindaphindiweyo kunye ne-backreaming ngaphambi kokudibanisa i-joint elandelayo okanye i-stand.

Izinto Ezinokwenzeka Neengozi:Le ngxaki idla ngokuvela xa kugrunjwa ujikelezo olujikelezayo kwimigodi ethe nkqo, ukugrunjwa kweefestile kunye nokusebenza kokweqela elihamba ecaleni, kunye nokugrunjwa ujikelezo oluhamba ngqo. Iphazamisa ukwakhiwa kwesiqhelo kwecala kwaye inokukhokelela ekunamatheleni kwemibhobho ukuba imisebenzi ayiqhutywanga kakuhle.

2.Uhlalutyo lweZinto ezibangela

Indlela Embi Yokubangela Ingxaki:Ukuphambuka kwindlela yokujikeleza kwe-wellbore (okubangelwa ziimeko zokwakheka okanye iimpazamo zokwakha) kudla ngokufuna uhlengahlengiso lokujikeleza kwegazi ngasemva. Amanqanaba aphezulu okwakha (aqheleke kakhulu kwimithombo ethe tyaba ephakathi/emfutshane kuneye-long-radius) kunye neendlela ezingacwangciswanga, kunye nokuqina kwentambo yokubhola, kubangela ukuba intambo yokubhola iphumle eludongeni lwe-wellbore xa uxinzelelo lusetyenziswa—okubangela ukulahleka kokudluliselwa kwe-WOB. Amandla ongezelelweyo okutsala ngexesha lokukhubeka emva kokusetyenziswa koxinzelelo afana namanqanaba aqhelekileyo kwaye adla ngokungadluli uxinzelelo olusezantsi.

I-Wellbore Engcolileyo (Ukwakheka Kwebhedi Yokusika):Ukususwa kweziqwenga kunzima kwimithombo ethe tye kunye nemithombo ethe tye enesiphambuko se-45-90 degrees. Kwimimandla eqinileyo (umz., iShahejie kunye neKongdian formations), iziqwenga ziqokelelana ngokulula kwiibhedi. Ezi bhedi zonyusa ukungqubana okutyibilikayo phakathi kwentambo yokubhola kunye nodonga olunemibhobho, okukhokelela ekulahlekelweni kokudluliselwa kwe-WOB.

Ikhekhe lodaka oluqinileyo nolukhululekileyo, i-Coefficient ephezulu yokungqubana kodaka:Ubuninzi bomhlaba oqinileyo kudaka bubangela iikeyiki zodaka eziqinileyo nezikhululekileyo, ezithi zandise indawo yokudibana nomtya wokubhola kwaye zinyuse umngcipheko wokunamathela. Umlinganiselo ophezulu wokungqubana kodaka unyusa ukumelana kokutyibilika komtya wokubhola. Le meko inokubangela ukuvaleka kwepompo ngequbuliso xa i-WOB yonyuswa (umz., ukuya kwiitoni ezingama-30), kunye namandla ongezelelweyo okutsala adlula i-WOB esezantsi.

3. Amanyathelo okunciphisa

Ulawulo lweNdlela yeWellbore kunye noLungiso lweentambo zokubhola:Sebenzisa ukubhola okukhokelwa ngokupheleleyo ukuze uphephe ukuphambuka kwendlela efuna ukulungiswa kokujikeleza kwegazi ngasemva. Yenza lula ulungiselelo lwentambo yokubhola (nciphisaiikhola zokubhola, yonyusa imibhobho yokubhola enzima) ukunciphisa ubulukhuni nokunciphisa ukudibana nekeyiki yodaka, ukuthintela ukulahleka nokunamathela kokudluliselwa kwe-WOB.

Iphuculwe Ukucocwa kweWellbore kunye nodaka:Sebenzisa izixhobo zokulawula izinto eziqinileyo ukucoca udaka olungaphezulu. Qinisekisa ukuba ukususwa okwaneleyo (ubuncinane ngaphantsi kwe-3.4 m³/min kwiindawo zequla ezingama-φ311, i-1.1 m³/min kwiindawo ezingama-φ216) kwaye ulungise iiparameter ze-rheological zodaka (umlinganiselo we-YP/PV: 0.42–0.50; i-viscosity: ≥48 s) ukuphucula amandla okuthwala iziqwenga. Kwiindawo zequla ezithe tye, phinda ujike uye kwiidigri ezingama-20–30 zokuphambuka ukuze uqhekeze iindawo zeengcambu.

Phucula ukutyeba kodaka kunye nomgangatho wekhekhe lodaka:Yongeza iitoni ezi-3–5 zeoyile ekrwada (engadluli kwi-10%) zidityaniswe nezithambisi ezisekelwe emanzini ukuze ulinganisele ukutyeba kunye nomgangatho wekhekhe lodaka. Faka i-asphalt okanye i-phenolic resin exutyiweyo ukuze uphucule iipropati zekhekhe lodaka. Ukuze ufumane ilahleko yokudluliselwa kwe-WOB kwiindlela eziqinileyo, yongeza i-200–300 kg ye-graphite ekhulisiweyo okanye izithambisi ezixineneyo ukuze unciphise ukungqubana.

Uqhagamshelwano: uBree Zhang
Iselfowuni/I-Whatsapp:+0086-183 9206 9193
I-imeyile:landrill@landrilltools.com
Iwebhu:www.landrilltools.com