Ukudityaniswa kwemibhobho yokomba i-oyile yinxalenye ebalulekileyo yombhobho wokubhoboza, oquka iphini kunye noqhagamshelo lwebhokisi kuzo zonke iziphelo zomzimba wombhobho wokubhola. Ukwandisa amandla okudibanisa, ubukhulu bodonga lombhobho budla ngokunyuka kwindawo yokudibanisa. Ngokusekelwe kwindlela yokwandisa udonga, ukudibanisa kungahlelwa kwiintlobo ezintathu: ukuphazamiseka kwangaphakathi (IU), ukuphazamiseka kwangaphandle (EU), kunye nokuphazamiseka kwangaphakathi-kwangaphandle (IEU).
Ngokuxhomekeke kuhlobo lwentambo, ukudityaniswa kombhobho we-drill kwahlulahlulwe kwezi ntlobo zine zilandelayo: I-Internal Flush (IF), i-Full Hole (FH), i-Regular (REG), kunye ne-Number Connection (NC).
1. UQhagamshelwano lweFlush yangaphakathi (IF).
UKUBA uqhagamshelo lusetyenziswa ikakhulu kwi-EU kunye ne-IEU yemibhobho yokomba. Kulo hlobo, ububanzi bangaphakathi becandelo eliqiniweyo lombhobho lilingana nobubanzi bangaphakathi bokudibanisa, obukwalingana nobubanzi bangaphakathi bomzimba wombhobho. Ngenxa yamandla asezantsi ngokwentelekiso, uqhagamshelo lwe-IF lunosetyenziso olulinganiselweyo oluqhelekileyo. Imilinganiselo eqhelekileyo ibandakanya i-diameter yebhokisi yangaphakathi ye-211 (NC26 2 3/8"), kunye nentambo ye-pin ejikelezayo ukusuka ekupheleni encinci ukuya kwisiphelo esikhulu. Inzuzo yoxhulumaniso lwe-IF kukuxhathisa okuphantsi kokuhamba kwamanzi okubhobhoza, kodwa ngenxa yobukhulu bayo bangaphandle, kudla ukuguga ngokulula ekusebenziseni okusebenzayo.
2. Umngxuma opheleleyo (FH) Connection
Uqhagamshelo lwe-FH lusetyenziswa ikakhulu kwi-IU kunye nemibhobho yokomba ye-IEU. Kolu hlobo, i-diameter yangaphakathi yecandelo eliqiniweyo lilingana nobubanzi bangaphakathi bomdibaniso kodwa lincinci kunobubanzi obungaphakathi bomzimba wombhobho. Njengoxhulumaniso lwe-IF, intambo ye-pin ye-FH yodibaniso icotha ukusuka kwincinci ukuya kwisiphelo esikhulu. Umsonto webhokisi unomlinganiselo wangaphakathi we-221 (2 7/8″). Uphawu oluphambili lokudityaniswa kwe-FH ngumahluko kwi-diameters yangaphakathi, ebangela ukuchasana kokuhamba okuphakamileyo kwi-drilling fluids. Nangona kunjalo, i-diameter yayo encinci yangaphandle yenza ukuba ingabikho lula ukunxiba xa kuthelekiswa noqhagamshelo lwe-REG.
3. Uqhagamshelwano rhoqo (REG).
Uqhagamshelo lwe-REG lusetyenziswa ikakhulu kwimibhobho yokomba ye-IU. Kulo hlobo, ububanzi bangaphakathi becandelo eliqiniweyo lincinci kunomlinganiselo wangaphakathi wokudibanisa, obuye ube mncinci kunobubanzi obungaphakathi bomzimba wombhobho. Idayamitha yangaphakathi yomsonto webhokisi yi-231 (2 3/8″). Phakathi kweentlobo zoqhagamshelo lwemveli, uqhagamshelo lwe-REG lunokona kuxhathisa ukuqukuqela kwamanzi okugrumba kodwa olona bubanzi buncinci bangaphandle. Oku kunika ukomelela okukhulu, kuyenza ifaneleke kakuhle imibhobho yokomba, amasuntswana okomba, kunye nezixhobo zokuloba.
4. Uqhagamshelo oluneenombolo (NC)
Uqhagamshelo lwe-NC luluhlu olutsha oluthatha indawo ngokuthe ngcembe uninzi lwe-IF kunye nonxibelelwano lwe-FH olusuka kwimigangatho ye-API. Uqhagamshelo lwe-NC lukwabizwa ngokuba luthotho lwemisonto erhabaxa yeSizwe e-United States, enemisonto yohlobo lwe-V. Olunye uqhagamshelo lwe-NC lunokutshintshwa ngoqhagamshelwano oludala lwe-API, kuquka i-NC50-2 3/8″ IF, NC38-3 1/2″ IF, NC40-4″ FH, NC46-4″ IF, kunye ne-NC50-4 1/2″ UKUBA. Into ephambili yoxhulumaniso lwe-NC kukuba bagcina i-pitch diameter, i-taper, i-thread pitch, kunye nobude bentambo yoqhagamshelwano oludala lwe-API, okwenza ukuba luhambelane ngokubanzi.
Njengenxalenye ebalulekileyo yemibhobho yokubhobhoza, ukudityaniswa kwemibhobho yokomba kuyahluka kakhulu ngokwamandla, ukuxhathisa, kunye nokumelana nokuhamba kwamanzi, kuxhomekeke kuhlobo lwentambo kunye nendlela yokuqinisa udonga. Uqhagamshelwano lwe-IF, FH, REG, kunye ne-NC nganye ineempawu ezizodwa kwaye ifanele iimeko ezahlukeneyo zokusebenza. Ngenkqubela phambili yetekhnoloji, uqhagamshelo lwe-NC ngokuthe ngcembe luthatha indawo yemigangatho emidala ngenxa yokusebenza kwayo okuphezulu, ibe lukhetho oluphambili kwimisebenzi yangoku yokomba ioyile.
Ixesha lokuposa: Aug-22-2024
