Kuyera kwakajairika Paunenge uchichera (MWD) zvishandiso

Chiyero chakajairwa Nepo Kuchera (MWD) system ine yepasi pasi probe, data transmission system uye pamusoro pemidziyo pasuru. Directional dhata inoyerwa neiyo downhole probe uye inotumirwa nedhaka pulse telemetry kana electromagnetic waves kumusoro. Nezvizhinji zvezvishandiso nzira dzakasiyana dzekushanda dzinogona kuchinjwa nekutevedzana kwepulse.

Downhole probe

Iyo downhole probe yeMeasurement When Drilling (MWD) system inowanzo sanganisira matatu yakasimba state accelerometers kuyera kurerekera uye matatu akasimba mamiriro magineti ekuyera azimuth. The downhole probe yakafanana neiyo yakasimba state single uye multi-shot maturusi uye inoiswa mune isiri-magnetic collar.

Kuendesa data

Nzira nhatu dzekutanga dzekutumira data kumusoro dziripo:

1.Mud pulse telemetry inoisa iyo data mubhinari fomati uye inovatumira kumusoro nechakanaka kana kuti isina kunaka kudzvanywa pulses inogadzirwa mumvura yekuchera iyo inocherechedzwa nekumanikidza transducers pa-stand-pipe uye decoded nepamusoro komputa.

2.Continuous-wave telemetry, chimiro cheposititive pulse, inoshandisa chigadziro chinotenderera chinogadzira chiratidzo chenguva yakatarwa chinotumira mashoko ebhinari akavharidzirwa muchikamu chekuchinja pamhepo yekumanikidzika kusvika kumusoro kuburikidza nekoramu yematope. Mukana mukuru wekuenderera mberi wave telemetry system pamusoro peiyo yakanaka uye yakaipa sisitimu ndiyo yakakwira pulse frequency kuderedza inodiwa nguva yekuongorora.

3.Electromagnetic transmission inoshandisa yakaderera frequency electromagnetic masaisai achipfuura nemukuumbwa. Izvi zvinogamuchirwa neantenna yakaiswa muvhu padivi peiyo rig saiti. Iyo sisitimu ine hushoma hwakadzika huwandu zvinoenderana neresistivity yezviumbwa. Iyo yakaderera iyo resistivity, iyo isina kudzika ndiyo inobatsira kudzika siyana. Parizvino izvi zvinowanzoitika pakati pe1000 ne2000 metres. Zvichipesana neakanaka, akaipa uye anoenderera mberi neave telemetry masisitimu, iyo electromagnetic telemetry system inogona kushandiswa kana tsime rakavharika, semuenzaniso pakuchera pasi-yepakati.

Pamusoro midziyo

Zvakajairwa pamusoro pezvikamu zvedhaka pulse Measurement When Drilling (MWD) system inosanganisira kudzvanya ma transducer ekuona masaini, emagetsi masigne decoding zvishandiso, uye akasiyana analogue nedhijitari kuverenga uye kuronga.

Kuvimbiswa kwehutano

Hunhu husimbiso hweChiyero Nepo Kuchera (MWD) maturusi akafanana neakasimba mamiriro ega uye akawanda-anopfura maturusi. Pamusoro peizvi bvunzo dzebasa dzinofanirwa kuitwa usati wamhanyisa BHA kusvika pasi.

Maitiro akajairika:

1.Carry kunze kwepamusoro basa bvunzo. Tarisa kurongeka kweChiyero Uchiri Kuchera (MWD) chishandiso neyakabhenda sub, kana zvichibvira.

2.Carry out shallow test procedure.

3.The Measurement When Drilling (MWD) chishandiso chinofanirwa kuongororwa, pese pazvinenge zvichiita kuita kudaro, padyo nepamusoro sezvinobvira. Izvi zvinowanzoita 1 kusvika 2 zvimire zvepipepipe pazasi pe rotary. Nzira yacho ndeiyi:

-batanidza kelly kana kumusoro dhiraivha;

-tora ongororo uye kumirira kutumirwa kwakazara kweongororo. Maitiro ewongororo inogutsa ndeaya:

-kurerekera kunofanira kunge kuri pasi pe1 °;

-gravitational field inofanira kuva mukati me 0.003 g yehuwandu hunotarisirwa;

-ona kuti magineti data yakatorwa mukati mekusimuka kana casing haina kushanda;

-kana bvunzo ichigutsa, uye madhaka pulses akadhindwa ramba uchimhanya mukati. Kana zvisingagutsi, dzorera chishandiso kumusoro.

4.Kuita ongororo yekuenzanisa. Mhanya mugomba kuitira kuti Kuyerwa Uchiri Kuchera (MWD) sensor iri pachiteshi chebhenji uye ita ongororo yebenchmark sezvinotevera:

5.Chiteshi chebhenji chinenge 15 m (50 ft) pasi peshangu yakapfuura casing, asi kure zvakakwana kubva kune mamwe matsime kudzivirira zvinogona kuitika magineti kupindira kuMeasurement When Drilling (MWD) system.

6.Kuita ongororo yekuongorora. Izvi zvichatorwa pasi nguva isati yatanga kuchera uye zviri nani sepedyo neyekupedzisira Kuyera Nepo Kudhirowa (MWD) ongororo yakatorwa pane yapfuura kumhanya sezvinobvira. Zvingave zvakafanira kushandisa yekupedzisira asi imwe Measurement Uchiri Kuchera (MWD) ongororo kubva mukumhanya kwapfuura. Ongororo iyi inosimbisa huchokwadi hwe data reongororo yakapfuura. Kana kusawirirana kweanopfuura madhigirii maviri muazimuth uye hafu yedhigirii mukurerekera kuchionekwa mune idzi ongororo dzecheki, hofisi inofanirwa kubvunzurudzwa kuti ipe zano pamusoro pechiito chinodiwa.

7.Mhanya mugomba uye dhiririra mberi uchitora ongororo sezvinodiwa kana orient toolface.

8.Chero ongororo isina chokwadi inofanira kusimbiswa nekutora imwe Kuyera Uchiri Kuchera (MWD).

Senyanzvi yekugadzira maturusi ekutema matanda, mainjiniya edu ehunyanzvi ane makore mazhinji eruzivo mukupedzisa nekutema matanda, ese maturusi ekutema matanda ari kutengeswa anogona kugadzirwa zvinoenderana nezvinodiwa nevatengi, hongu, isu tinogona zvakare kukupa iwe pa-saiti masevhisi kuti ubatsire. unoita zviyero zvepa-saiti. Kana iwe uchifarira kupedza uye kutema matanda, ndapota usazeza kubata neboka reVigor, isu tinokupa iwe yakanyanya nyanzvi yehunyanzvi rutsigiro uye rutsigiro rwechigadzirwa panguva yekutanga.