I-MWD VS LWD

Iyini i-MWD (Ukulinganisa Ngenkathi Umba)?

I-MWD, okusho ukuthi I-Measurement While Drilling, iyindlela ethuthukisiwe yokugawula imithombo ethuthukisiwe ukuze kubhekwane nezinselele ezihambisana nokumba ema-engeli adlulele. Le nqubo ihlanganisa ukuhlanganisa amathuluzi okulinganisa kuyunithi yezinhlamvu zokubhoboza ukuze kunikezwe ulwazi lwesikhathi sangempela olusiza ekuthuthukiseni isiqondiso sokubhoboza. I-MWD inomthwalo wemfanelo wokulinganisa izinto ezibonakalayo ezihlukahlukene njengezinga lokushisa, ingcindezi, kanye nomkhondo womthombo. Inquma ngokunembile ukuthambekela kwe-borehole kanye ne-azimuth, idlulisela le datha endaweni lapho ingagadwa khona ngokushesha ama-opharetha.

Iyini i-LWD (Ukugawula Ngenkathi Umba)?

I-LWD, noma Ukuloga Ngenkathi Umba, iyindlela ebanzi eyenza ukurekhoda, ukugcinwa, nokudluliselwa kolwazi ngesikhathi sokumba. Ithwebula idatha yokuhlola ukwakheka okubalulekile, okuhlanganisa izilinganiso zokucindezelwa kwezimbotshana zembotshana nesisindo sodaka, ngaleyo ndlela inikeze opharetha imininingwane ejulile mayelana nemvelo yechibi. Lokhu-ke kuvumela ukuba kwenziwe izinqumo ezinolwazi mayelana nokumba. I-LWD ihlanganisa amasu anhlobonhlobo afana nokumba i-electromagnetic, ukugawulwa kwemithi yenuzi, ukugawulwa kwemithi ye-acoustic, nokugawulwa kwe-nuclear magnetic resonance. Lezi zindlela zisiza i-geosteering, ukuhlaziya i-geomechanical, ukuhlaziya i-petrophysical, ukuhlaziya uketshezi lwe-reservoir, kanye nemephu ye-reservoir.

Umehluko Phakathi kwe-MWD ne-LWD:

Nakuba i-MWD ithathwa njengesethi engaphansi ye-LWD, kunomehluko ohlukile phakathi kwalezi zindlela ezimbili.

Isivinini Sokudlulisa: I-MWD ibonakala ngokuhlinzeka kwayo kwedatha yesikhathi sangempela, eyenza abaqhubi be-drill bakwazi ukuqapha ukusebenza ngokuqhubekayo futhi benze izinguquko ngokushesha uma kunesidingo. Ngokuphambene, i-LWD ihilela ukugcina idatha kumemori yesimo esiqinile ngaphambi kokuyidlulisela phezulu ukuze ihlaziywe ngokulandelayo. Le nqubo yokugcina nokubuyisa ibangela ukubambezeleka okuncane njengoba idatha erekhodiwe idinga ukubuyiswa bese iqoshwa abahlaziyi.

Izinga Lemininingwane: I-MWD igxile kakhulu olwazini oluqondisayo, igxile emininingwaneni efana nokuthambekela komthombo kanye ne-azimuth. Ngakolunye uhlangothi, i-LWD inikeza uhla olubanzi kakhulu lwedatha ephathelene nokwakheka okuqondiwe. Lokhu kufaka phakathi izilinganiso zamaleveli emisebe ye-gamma, ukumelana nokuqina, ukuqina, ukunensa, izingcindezi zangaphakathi nonyaka, namaleveli okudlidliza. Amanye amathuluzi e-LWD anekhono lokuqoqa amasampula oketshezi, okuthuthukisa ngokwengeziwe ukunemba kokuhlaziywa kwechibi.

Empeleni, i-MWD kanye ne-LWD kuyizinqubo ezibalulekile ezibalulekile ekuthuthukiseni imisebenzi yokumba ogwini. I-MWD iletha ukudluliswa kwedatha yesikhathi sangempela, ngokuyinhloko igxile olwazini oluqondisayo, kuyilapho i-LWD ihlinzeka ngohlu olubanzi lwedatha yokuhlola ukwakheka. Ngokuqonda ama-nuances phakathi kwalezi zindlela, izinkampani zingathuthukisa kakhulu ukusebenza kahle nokuphepha kwazo kokumba. Ngaphezu kwalokho, ukuvikela izindawo zokuhlala eziklanyiwe kudlala indima ebalulekile ekuqinisekiseni umsebenzi wokumba oyimpumelelo. Ukucabangela lezi zakhi kungenza kube lula ukusebenza kokumba futhi kube nomthelela empumelelweni yonke yokusebenza.