I-MWD (Ukulinganisa Ngenkathi Umba) I-Telemetry

Ukulinganisa ngenkathi kubholwa (MWD) kuwubuchwepheshe obubalulekile embonini kawoyela negesi evumela ukulinganisa kwesikhathi sangempela nokuqoqwa kwedatha phakathi nenqubo yokumba. Amasistimu e-MWD aqukethe izinzwa nezinto zikagesi ezifakwe kuyunithi yezinhlamvu zokubhola, ezisetshenziselwa ukukala amapharamitha ahlukahlukene, njengesisindo kubhithi, ukuthambekela, i-azimuth, nezinga lokushisa eliphansi kanye nokucindezela. Idatha eqoqwe amasistimu e-MWD idluliselwa phezulu ngesikhathi sangempela, okuvumela ithimba elimbayo ukuthi lenze izinqumo ezinolwazi mayelana nenqubo yokumba.

Enye yezingxenye ezibalulekile zohlelo lwe-MWD uhlelo lwe-telemetry, olunesibopho sokudlulisa idatha kusuka ezinzwa eziphansi kuya phezulu. Kunezinhlobo eziningana zezinhlelo ze-telemetry ezisetshenziswa ezinhlelweni ze-MWD, kufaka phakathi i-mud pulse telemetry, i-electromagnetic telemetry, kanye ne-acoustic telemetry.

I-Mud pulse telemetry iwuhlelo lwe-telemetry olusetshenziswa kabanzi olusebenzisa amaza okucindezela odakeni lokumba ukuze ludlulisele idatha phezulu. Izinzwa ezisethuluzini le-MWD zikhiqiza ama-pulses okucindezela athunyelwa phansi entanjeni yokubhoboza futhi odakeni lokumba. Ama-pulses okucindezela abe esetholwa yizinzwa phezulu, ezisetshenziselwa ukuqopha idatha futhi iyidlulisele ethimbeni lokumba.

I-Electromagnetic telemetry ingolunye uhlobo lwesistimu ye-telemetry esetshenziswa ezinhlelweni ze-MWD. Isebenzisa amaza kagesi ukuze idlulisele idatha phezulu. Izinzwa ezisethuluzini le-MWD zikhiqiza amasignali kazibuthe kagesi adluliselwa ngokwakheka futhi atholwe izinzwa phezulu.

I-Acoustic telemetry wuhlobo lwesithathu lwesistimu ye-telemetry esetshenziswa ezinhlelweni ze-MWD. Isebenzisa amaza omsindo ukudlulisa idatha phezulu. Izinzwa ethuluzini le-MWD zikhiqiza amaza omsindo adluliselwa ngokwakheka futhi atholwe izinzwa phezulu.

Sekukonke, i-telemetry ye-MWD iyingxenye ebalulekile yezinhlelo ze-MWD, njengoba ivumela ukudluliswa kwedatha yesikhathi sangempela kusuka kuzinzwa ze-downhole kuye phezulu. Lokhu kusiza ukuthuthukisa ukusebenza kahle nokunciphisa ingozi yezingozi nezinye izinkinga ohlelweni lokumba.

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