I-Tri-Cone Drill Bit: Iimbono zeSicelo

1) Ulwakhiwo olusisiseko ai-tricone drill bits. I-drill bit body: Kukho iziqwenga ezintathu zamazinyo adityanisiweyo aze adityaniswe kunye, kwaye kukho imisonto edibanisayo kwindawo ephezulu. Isixhobo: Isixhobo sentsimbi esimilise okwekhoni senziwa ngumzimba wegiya kunye namazinyo. Amazinyo ahlulwe abe ziindidi ezimbini: amazinyo agayiweyo kunye namazinyo okufaka, iibheringi kunye nemilomo yesixhobo sokutywina sogcino lweoyile.

2) Umgaqo wokuSebenza we-roller cone bit Xa ii-roller cone bitisebenza emazantsi equla, i-drill bit yonke ijikeleza i-axis ye-drill bit, ebizwa ngokuba yi-revolution, kwaye iicones ezintathu ziqengqeleka emazantsi equla ngokweezembe zazo, ezibizwa ngokuba yi-rotation. Uxinzelelo lokugrumba olunyamezelwa yi-drill bit lusebenza kwilitye ngamazinyo, lubangela ukuba ilitye liqhekeke (isiphumo sokutyumza). Ngethuba lenkqubo yokuqengqeleka, i-cone idibanisa ngokungafaniyo ezantsi kwequla ngamazinyo angatshatanga kunye namazinyo amabini, kwaye indawo ye-cone ye-cone iyaguquguquka, ibangela ukuba i-drill bit ingcangcazele i-longitudinally. Le vibration longitudinal ibangela ukuba umtya we-drill ucinezele ngokuqhubekayo kwaye wolule. Umtya we-drill osezantsi uguqula oku kutshintsha ngamaxesha athile amandla e-elastic deformation abe ngamandla empembelelo kukwakheka ngamazinyo ukuqhekeza ilitye. Le mpembelelo kunye nomphumo wokutyumza yeyona ndlela iphambili ye-roller cone drill bit ukuba iqhekeze amatye.

Ukongeza kwimpembelelo kunye nokutyumza ilitye ezantsi kwequla, i-roller cone bit nayo ivelisa iziphumo zokucheba kwilitye ezantsi kwequla. Ngelixa icone iqengqeleka emazantsi equla, ikwabangela ukuba amazinyo atyibilike emazantsi equla. Ukutyibilika kwamazinyo kubangela ukuchetywa kwelitye elisezantsi kwequla, ukukrazula emazantsi equla njengentwana yokukrala. Ukutyibilika kwamazinyo kubangelwa ubukhulu becala ngaphezulu, i-cone encedisayo kunye nohlengahlengiso lohlengahlengiso lwevili legiya. Ukulungelelaniswa okungaphezulu kwe-cone cone kubangela ukutyibilika kwicala le-tangential, kwaye ukulungiswa kwe-shift ye-cone kubangela ukutyibilika kwi-axial direction. Ngokubanzi,i-drill bitsukwenzela ukubhola izinto ezithambileyo ukuya kweziphakathi-zilukhuni ziyilwe nge-over-top, i-cone cone kunye ne-shafts shifting; amasuntswana okubhobhoza okuphakathi-nzima ukuya kolukhuni kuyilwe ngeecones ezingaphezulu-phezulu kunye necompound; amasuntswana okomba ukwenzela ukugrumba okunzima kakhulu kunye nokwakheka okugqwethekileyo kuyilwe ngeecones ezingaphezulu-ngaphezulu kunye nezimbaxa. Iibhithi zokubhola zihlala zisebenzisa iikhowuni zekhowuni enye, ezingadubuli kakhulu okanye zishukumise iaxis.

3) Ukuhlelwa kunye noKhetho lweeBits ze-Roller Kukho abaninzi abavelisi bee-roller bits, kwaye aba bavelisi be-drill babonelela ngee-drill bits zeentlobo ezahlukeneyo kunye nezakhiwo. Ukuze kube lula ukukhetha kunye nokusetyenziswa kweebhithi ze-roller cone, i-International Institute of Drilling Contractors (IADC) iphuhlise umgangatho odibeneyo wokuhlelwa kunye nendlela yokubala amanani kwiibhithi ze-roller cone emhlabeni jikelele. I-IADC imisela ukuba uhlobo ngalunye lwe-drill bit lumelwe linani elinemivo emithathu, kwaye intsingiselo yenani ngalinye imi ngolu hlobo lulandelayo:

• Idijithi yokuqala ibonisa uhlobo lwezinyo kunye nokwakheka okufanelekileyo ukugaya: 1- izinyo lokugaya, ukubunjwa okuthambileyo; I-2-izinyo lokugaya, ukubunjwa okuphakathi ukuya kwi-medium-hard; I-3- izinyo lokugaya, i-hard, i-abrasive okanye i-semi-abrasive formation; 4- eyongezelelweyo; 5-Izinyo, ukumila okuthambileyo ukuya phakathi; 6-Izinyo, ukwakheka okuphakathi-lukhuni; I-7-izinyo, i-hard, i-abrasive okanye i-semi-abrasive ukwakheka; 8-Izinyo, liqine ngokugqithisileyo, ukumila okurhabaxa kakhulu.
• Idijithi yesibini ibonisa ukuba ukubunjwa okugrunjiweyo kwahlulahlulwe ngamabakala amane obunzima: 1, 2, 3, kunye ne-4.
• Idijithi yesithathu ibonisa iimpawu zesakhiwo se-drill bit: 1- I-rolling bearing engatywinwanga; 2- Umqolo wangaphandle omile okwe-T wokukhusela ububanzi; 3- Faka amazinyo ukukhusela i-diameter kwi-gauge diameter; 4- Ukutywinwa okuqengqelekayo; I-5- Ukutywinwa okujikelezayo kwi-gauge diameter Kukho izinto ezifakelweyo kunye neegeji; 6- iibheringi ezitywiniweyo ezityibilikayo; I-7- itywinwe iibhereyidi ezityibilikayo ezinokufakwa kunye neegeji kwi-gauge; 8- amasuntswana okuphambuka kakuhle; 9- abanye.

Iimpawu kunye nezibonelelo ze-roller cone drill bits:

• 1. Ukuqhekeka kwelitye okuneziphumo ezimbini zempembelelo kunye nokucheba, zombini iimpembelelo zamazinyo kunye nokucheba okubangelwa kukutyibilika, okukhokelela ekusebenzeni kakuhle kokuqhekeka kwamatye.
• 2. Iyakwazi ukulungelelaniswa kuluhlu olubanzi lwe-strata kwaye ifanelekile ukugaya kuzo zonke iistrata.
• 3. I-drill bit inefuthe elihle lokuzicoca kwaye akukho lula ukuba libe nodaka.
• 4. Iindleko ze-drill bit ziphantsi.