INdibano yeMipu yokuQhutywa kunye noBuchule

I-wireline perforating gun assembly ibandakanya intloko yentambo, i-collar locator okanye isixhobo se-gamma ray, kunye ne-spring okanye izixhobo zemagneti ukubeka umpu kwi-borehole kunye nompu ngokwawo. Iindidi ezine eziphambili zemipu ye-wireline perforating zingahlukaniswa kwaye zibonakaliswe. Zonke ziyafana ekusebenzeni kwaye zahlukile kuphela kwindlela adityaniswa ngayo amacandelo.

Intloko yeCable

Intloko yekhebula inikezela ukudibanisa koomatshini kunye nombane phakathi kwentambo kunye nompu. Uqhagamshelo lomatshini phakathi kwentambo kunye nentloko lubuthathaka kunentambo ngokwayo ukuvumela intambo ukuba itsalwe simahla ukuba umpu unokuba namandla.waxinga emngxunyeni. Ngokuqhelekileyo kuthethwa ngokuba yindawo ebuthathaka. Intloko yekhebula yenzelwe intamo yeprofayili ukuvumela umgangathoizixhobo zokulobaukubuyisela imitya yesixhobo ukuba indawo ebuthathaka yaphulwe. Kubaimipusebenzisa intambo enkulu, le ntamo ineprofayile egudileyo ukuvumela ukubandakanyeka ngei-overshot/indibano yokulwa. Ngokwahlukileyo, intamo esemgangathweni yokuloba intambo inikezelwa kwimipu emincinci.

I-Collar Locator In kwi-Wireline iThunyelwe ukuQinisa

Isixhobo sekhola okanye isixhobo semitha ye-gamma sibeka umpu kubunzulu obumiselwe ngokuchanekileyo xa kuthelekiswa nemilinganiselo yelog yomngxuma ovulekileyo okanye ihardware yokugqiba. Izixhobo ze-Gamma-ray zisetyenziswa kancinane ngenxa yendalo yazo eethe-ethe kunye nokulula okuhambelanayo apho ikhola log enokuthi isetyenziswe ukuhambelana nzulu. Ngokuqhelekileyo, isixhobo se-gamma ray kunye ne-collar locator (CCL) ziqhutywa ngokudityaniswayo ngaphambi kokuba kuqhutywe i-perforating ukuvumela ubunzulu obuchanekileyo.umbhobho webhokisiiikhola ezihambelana neendawo ezivulekileyo zokuvavanya umngxuma oza kumiselwa.

Imfuneko yokubaleka kwe-CCL eyongezelelweyo inokuthintelwa ngokuqinisekisa ukuba isixhobo se-gamma ray sidityanisiwelog bond yesamenteyemvelisouhlobo lwebhokisi. Ubunzulu bekhola busetyenziselwa ukulungisa iimpazamo kwimilinganiselo enzulu eyenziwe ngelixa uqhuba umpu we-perforating emngxunyeni. Caba umngxuma ovulekileyo wereyi ye-gamma log ayinalo uphawu olwaneleyo lokuvumela ulungelelwaniso kunye nekhola yekhola yelog.

Kwimeko enjalo, kunokuba yimfuneko ukuqhuba i-neutron log kunye ne-collar log ye-casing ukucacisa ubunzulu beekhola ze-casing. Ubunzima bokudibanisa i-collar log ye-collar ehlukeneyo inokukhokelela kwiimpazamo ekuchongeni iikhola zomntu ngamnye xa onke amajoyina e-casing afana kakhulu ngobude. Ngoko ke, kuyinto eqhelekileyo ukuqhuba ikhonkco elifutshane (i-pup joint) kumtya we-casing phezulu kwendawo yokugcina amanzi. Oku kuqinisekisa ukuba iikhola ze-casing zibonakala ngokukhawuleza kwaye zikhawuleza, zinciphisa umngcipheko wokugqobhoza ubunzulu.

Isixhobo sokumisa

Kwimipu encinci ye-diameter, engagqobhozi nge-360 °, izixhobo zokubeka zibekwe ngaphantsi kwendawo yekhola ukuqinisekisa ukuba umpu ujoliswe kwi-azimuthal echanekileyo kwi-wellbore. Xa udutyulwa, indawo ekumi kuyo umpu kumthombo uya kugqiba umgama kumanzi aphuma kumthombo.intlawulo emileijethi kufuneka ihambe phambi kokuba ingene kwi casing.

Ngokubanzi, lo mgama kufuneka uncitshiswe ukufezekisa ukungena kokubunjwa okuphezulu kunye nokusebenza ngokugqwesileyo okuphezulu. Isixhobo se-spring okanye imagnethi sisetyenziselwa ukuqinisekisa ukuba umpu ubanjwe ngokuchasene ne-casing, okunciphisa ukuma phakathi komzimba wompu kunye ne-casing kwicala lokudubula. Ngokubhobhoza, ukugqobhozwa kweendawo eziphezulu ze-aukugqitywa okuninzikufuna ukuba izithonga zikhutshwe ngokuqhelaniswa nokuthintela umonakalo kumtya wokugqiba ixesha elide.

Intambo yocingo igqithise uMpu oqhumayo

Umpu ubekwe ezantsi kwindibano ye-perforating. Umpu uquka isiqhushumbisi esisebenza ngombane, okanye ikepusi yokuqhushumba, edityaniswe ekupheleni kombhobho weziqhushumbisi owaziwa ngokuba yintambo yokuqhushumba okanye intambo yeprima. Intambo yokuqhushumba ihamba ubude bompu. Kukudityaniswa ngokomzimba kunye nentlawulo nganye emile.

Xa umpu uqhutyelwe, i-cap yokuqhumisa iqalisa ukuchithwa kwentambo ye-prima, ethi isebenze intlawulo nganye emile. Kwimipu yokuthwala engenanto, i-cap yokuqhumisa ibekwe kwindawo ephantsi yompu, kwaye umpu ugxothwe ukusuka phezulu ukuya phezulu. I-detonator ayiyi kuqalisa i-primacord ukuba i-fluid ikhona ngenxa yokuvuza, ukuthintela ukuchithwa kwe-low-order detonation kunye nokuqhekeka kompu okuza kubangela. Imipu yohlobo lwe-capsule exabisa kakhulu kwaye inesivalo sokuqhushumba phezulu kwaye idubula ukusuka phezulu ukuya phezulu. Masithi ikhefu eliqhubekayo liza kugqobhozwa.

Kwimeko apho, amacandelo ompu adla ngokudityaniswa kunye nge-ballistically (xa i-detonation shock wave yecandelo lompu iqalisa ngokuthe ngqo ukudutyulwa kwesilandelayo) kwaye idutyulwe njengompu omnye. Apho izikhewu ezininzi ezimfutshane ziza kugqojozwa, imipu inokudityaniswa ize iqhutywe kunye ize idutyulwe ngamnye kubunzulu obufunekayo. Uyilo lompu oza kugxothwa lufezekiswa ngokusebenzisa iidiode kunye nokutshintsha komatshini kwi-downhole gun.

Izibhamu ze-perforating ezivela kwi-Vigor zifumaneka kwiindlela zokuhanjiswa kwe-TCP kunye ne-WCP, zonke zenziwe ngokuhambelana nomgangatho we-SYT5562-2016, kwaye sihlala siphucula iindlela zokuthutha kunye nokupakisha ukuqinisekisa ukuba iimpahla zifika ngokukhuselekileyo kwindawo yomthengi. Ukuba unomdla kwiimveliso zethu zemipu eqhumayo, nceda ungalibazisi ukunxibelelana nathi ukuze ufumane ezona mveliso zisemgangathweni kunye neenkonzo.