Uphuhliso lweSixhobo seSiphawuli saMahla (iFPI).

Isixhobo se-Free Point Indicator (FPI) sisixhobo esichonga indawo ekhululekileyo kumtya wombhobho obambekayo. Isixhobo se-FPI silinganisa ukolula kumbhobho obangelwa ngamandla asetyenzisiweyo. Injineli ye-wireline iya kuqhoboshela isixhobo kumbhobho ezantsi, cela i-rig ukuba isebenzise amandla okutsala okanye i-torque, kwaye isixhobo siya kubonisa apho umbhobho uqala ukwelula. Le yindawo ekhululekileyo-ngaphezulu koku, umbhobho ukhululekile ukuhamba, ngelixa ngaphantsi kweli nqanaba, umbhobho ubambekile.

Traditional Free Point Tools

Ezihlala zibizwa ngokuba zizixhobo zelifa, ezi zixhotyiswe ngegeyiji yoxinzelelo olulinganisela ngokuchanekileyo utshintsho oluncinci kululeko lombhobho, ucinezelo, kunye netorque esetyenziswa ukusuka kumphezulu ngerig. Igeyiji yoxinzelelo, xa sele imisiwe, ibotshelelwe kwidayamitha yangaphakathi yombhobho, ingathintelwa yimpembelelo yentambo, kwaye inokulinganisa ukolula kunye nokuphambuka okujikelezayo. Nangona kunjalo, idatha ethunyelwe kwiphaneli yomphezulu imele kuphela isimo setyhubhu kubunzulu begeji yoxinzelelo. Ngenxa yoko, iindawo zokumisa izitishi ezininzi kufuneka ziqhutywe ukuchonga ngokuchanekileyo ubunzulu apho umbhobho ubambeke khona. Isikhululo ngasinye sokumisa sidinga ukuba i-rig ifake i-stretch kunye ne-torque ukumisela ubume bombhobho kubunzulu obumiselweyo besalathisi samahhala.

IsiZukulwana esitsha seZixhobo zaMahala

Kwelinye icala, isixhobo esitsha sasimahla sePoint sithatha ithuba lepropathi yentsimbi ye-magnetoresistive. Izixhobo zixhotyiswe ngeenzwa eziguqula ukuchasana kwazo ngokumalunga nemimandla yangaphandle yamagnetic kwaye irekhode iziphumo. Eyaziwa ngokuba yi-Halliburton Free Point Tool (HFPT), ichonga kwaye irekhode indawo apho umbhobho unamathele khona, ubonisa idatha kwifomati yelogi yedijithali. I-HFPT idinga kuphela isicelo esinye sokutsalwa okanye i-torque kwibhore ethe tye ethe nkqo ukuphembelela uxinzelelo kumbhobho, oguqula iimpawu zemagneti zezinto zombhobho ngaphezu kwendawo yokuncamathela. Le datha iye ifakwe kwaye irekhodwe ngokwedijithali, ivumela ukuphononongwa kamva kunye nohlalutyo lwendawo ebambekileyo.

Inkqubo yokusetyenziswa kwesixhobo esitsha

Inkqubo esebenzisa isixhobo esitsha ibiza iipasi ezimbini zokuloga. I-logging pass pass yokuqala irekhoda i-magnetization malunga nombhobho kunye nombhobho kwimeko yobunzima obungathathi hlangothi (isiseko). Ipasi yesibini yokugawulwa kwemithi irekhoda i-magnetization kunye noxinzelelo okanye i-torque efakwe kumbhobho. Xa i-torque okanye i-tension isetyenziswe kumbhobho onokuthi unwebe okanye ugxininiswe, iimpawu zayo ze-magnetostrictive ziyatshintsha. Ukuba icandelo lombhobho alikwazi ukolulwa okanye ukunyanzeliswa, iziphumo zemagnetization zihlala zingatshintshi. Ngulo mgaqo ukuba indawo yamahhala - utshintsho phakathi kombhobho onokuthi unganwebeki okanye utyhutyhe - uchongwa ngokulula ngokuthelekisa ukudlula ezimbini zokungena.

Iindlela zangaphambili zokumisela iingongoma ezikhululekileyo zazifuna uluhlu lwemilinganiselo emileyo kunye nombhobho kwimeko yobunzima obungathathi hlangothi kwaye emva koko kunye nokusetyenziswa kwe-stretch okanye i-torque kwaye ifuna ingcali enobuchule obuphezulu bokubuyisela umbhobho kwindawo. Indlela entsha ibandakanya nje ukwaleka kweendlela ezimbini zokugawulwa kwemithi ngaphambi nangemva kokuba umbhobho woluliwe okanye ugxothiwe.

Nangona kunjalo, amaqula atenxe kakhulu okanye athe tyaba anokufuna utsalo olongezelelweyo okanye ukujika kwetorque ukugxininisa umbhobho ngokwaneleyo ukuchonga ubunzulu bombhobho obambekileyo. Khumbula, kuzo zonke ezi ndlela, kubalulekile ukubeka esweni ngononophelo utshintsho kumandla asetyenziswayo kunye notshintsho olubangelwayo kumbhobho (ukolula, ukujija, njl.). Ngaphezu koko, zonke ezi ndlela zinemida yazo, kwaye iziphumo zinokuchatshazelwa zizinto ezahlukeneyo ezifana nobushushu, ukudinwa kombhobho, ubunzima bodaka, njl.

Le ndlela yokusebenzisa isixhobo se-FPI ingasetyenziswa ngesandla-ngesandla kunye nendlela yokubala eyolula ukunciphisa uqikelelo lwendawo yokuxinga. Kuya kunciphisa ixesha kunye nexesha lokungena elifunekayo ukukhomba ngokuchanekileyo indawo echanekileyo ngesixhobo seFPI.

Emva kokuba indawo exingileyo ibonakalisiwe, izicwangciso ezahlukeneyo zingasetyenziswa ukukhulula umbhobho, kubandakanywa ukusetyenziswa kolwelo lokomba ukunciphisa uxinzelelo, ukumpompa iasidi, imisebenzi yejarring, okanye ukuqhawulwa kwemibhobho kwiimeko ezinzima. Indlela ekhethiweyo iya kuxhomekeka kwiimeko ezichanekileyo zombhobho oxinyiweyo.

I-Vigor's Memory Cement Bond Tool yenzelwe ngokukodwa ukuvavanya ingqibelelo yebhondi yesamente phakathi kwe-casing kunye nokwakheka. Ifezekisa oku ngokulinganisa i-sement bond amplitude (CBL) isebenzisa abamkeli abakufutshane ababekwe kuzo zombini izithuba ze-2-ft kunye ne-3-ft. Ukongeza, isebenzisa umamkeli omde kumgama we-5-ft ukufumana imilinganiselo ye-variable density log (VDL).

Ukuqinisekisa uvandlakanyo olubanzi, isixhobo sihlula uhlalutyo lube ngamacandelo angama-8 angama-angular, kunye necandelo ngalinye eligubungela icandelo le-45 °. Oku kuvumela uhlolo olucokisekileyo lwe-360 ° lwentembeko yebhondi yesamente, ibonelela ngeembono ezixabisekileyo kumgangatho wayo.

Kwabo bafuna izisombululo ezilungiselelwe wena, sikwabonelela ngesiXhobo seBond ye-sonic esihlawulelwayo. Esi sixhobo sinokulungelelaniswa ukuhlangabezana neemfuno ezithile kwaye siqhayisa uyilo lwesakhiwo esidibeneyo, esikhokelela kubude obufutshane obufutshane bomtya wesixhobo. Ezo mpawu ziyenza ilunge ngakumbi kwizicelo zokungena kwimemori.

Ngolwazi oluthe kratya, ungabhalela kwibhokisi yethu yeposi info@vigorpetroleum.com&Marketing@vigordrilling.com