Ro­bust po­si­tion sen­sors for drilling equip­ment

DEMM Engineering & Manufacturing - - PRODUCT WATCH -

One of the world’s largest providers of prod­ucts and ser­vices to the oil and gas in­dus­tries is re­plac­ing po­ten­tiome­ters with MacroSen­sors’ LVDT lin­ear po­si­tion sen­sors as a crit­i­cal po­si­tion feed­back com­po­nent on its down-hole drilling equip­ment.

In­stalled on a ro­tary steer­able drilling sys­tem as part of the steer­ing mech­a­nism, the sen­sors pro­vide feed­back on ra­dial po­si­tions of the drill bit for proper geosteer­ing and op­ti­mum well­bore place­ment for faster, more ac­cu­rate and safer drilling op­er­a­tions. Bestech Aus­tralia of­fers a full range of MacroSen­sor LVDTs to meet any spe­cific ap­pli­ca­tions.

High vi­bra­tions caused by the drill’s im­pact and medium to hard sur­faces caused po­ten­tiome­ters failed pre­ma­turely to pro­vide ac­cu­rate po­si­tion feed­back. This leads to a frus­trated sit­u­a­tion that pots had to be re­placed each time the drill was ser­viced, which was typ­i­cally around 200 hours.

MacroSen­sors of­fer a longer life so­lu­tion that pro­vides re­li­able po­si­tion feed­back un­der the hos­tile con­di­tions and high vi­bra­tions in­her­ent to down-hole drilling. Us­ing mod­ern ma­te­ri­als and con­struc­tion tech­niques, these sen­sors with­stand high vi­bra­tions up to 20g, tem­per­a­tures up to 400 de­grees and high pres­sures up to 2413 bar.

In­ter­fac­ing with a con­ven­tional dif­fer­en­tial in­put LVDT sig­nal con­di­tioner, the sen­sors pro­vide po­si­tion feed­back to oper­a­tors at the sur­face, where drilling per­for­mance data can be con­tin­u­ously mon­i­tored at both the rig site and re­mote lo­ca­tions.­eren­quiry #D131209

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