Kungani isando se-DTH singasebenzi
Oct 22, 2024
Isando se-DTH singahlukaniswa ngohlobo lwe-valve i-DTH isando kanye nesando se-DTH esingenavalo ngokuya kwendlela yokusabalalisa umoya. Ukubonakaliswa okuyinhloko kokungaphumeleli kwesando se-DTH isando se-DTH esingenawo umthelela, umthelela obuthakathaka nomthelela wesikhashana.
Isizathu 1: Ukucubungula Okungalungile
Ukufana phakathi kwe-DTH hammer piston kanye ne-cylinder liner kuqinile, futhi ubude obuhambisanayo bude, futhi ukunemba kwemishini kanye nokushelela kwendawo kuyadingeka ukuba kube phezulu, okudinga i-cylindricity ephezulu kakhulu ye-piston kanye ne-cylinder liner. Uma i-cylindricity ingaqinisekisiwe, ipiston izoba nokunamathela okuqondisayo noma ngezikhathi ezithile, futhi ekugcineni induku yokubhoboza kungase kudingeke ukuthi iphakanyiswe futhi yehliswe kaningi ukuze kugcinwe isando se-DTH.
Ukwengeza, ukuqina kwe-casing yangaphandle yesando se-DTH nakho kuyisici esibalulekile esikhawulela impilo yesevisi yesando se-DTH. Uma ukuqina kwayo kungalungile, isando se-DTH sizokhubazekile ngenxa yokushayisana njalo nodonga lwe-borehole ngesikhathi sokumba; lapho isando se-DTH singasebenzi, ngokuvamile kudingekile ukudlidliza, ukuhlakazeka nokuhlanza isando se-DTH, esizokwandisa umonakalo we-casing yangaphandle yesando se-DTH. Ukuguqulwa; futhi ukuguqulwa kwe-casing yangaphandle kuzobangela ukuthi izingxenye zangaphakathi zesando se-DTH ziboshwe futhi azikwazi ukuhlakazwa, okuzogcina kubangele ngokuqondile ukuthi isando se-DTH sikhishwe.
Isizathu sesi-2: I-Backstop Seal ye-DTH Hammer Tail ayithembekile
Njengamanje, umsila wesando se-DTH ufakwe i-valve yokuhlola, futhi isakhiwo saso siboniswa esithombeni. Ifomu lokuvala lincike kakhulu ekucindezelweni kwekepisi yenjoloba eyindilinga noma indandatho ye-O efakwe kukepisi eliyindilinga lensimbi ukuze kuqhutshekwe ukuvala i-backstop. Umsebenzi wayo we-backstop ubonakala ngomzimba onwebekayo, futhi umzimba onwebekayo ngokuvamile unethuluzi eliqondisayo.
Le ndlela yokuvala uphawu inezinkinga ezilandelayo:
(1) Kukhona ukungqubuzana phakathi kwentwasahlobo nomshini wokuqondisa, okuzothinta isivinini sokunqamuka kwevalvu yokuhlola;
(2) Ukucindezelwa kaningi kanye nokungqubuzana kwezinto zokuvala zenjoloba isikhathi eside kuzodala ukuguga ngokweqile; (3) Umthombo ukhathele futhi ulimele, okuholela ekuhlulekeni kwe-backstop seal;
(4) Lapho igesi imisiwe, umfutho womoya ongaphakathi kwesando se-DTH uyancipha ngokuzumayo, okubangela ukuba i-rock powder noma ingxube ye-liquid-solid igeleze ibuyele emgodini ongaphakathi wesando se-DTH, okuzokwenza ukuthi i-piston ibambelele;
(5) Okubi nakakhulu ukuthi amanzi athwala ama-cuttings aye endaweni ye-valve (i-valve yohlobo lwe-DTH isando), ukuze ipuleti le-valve lingakwazi ukuvala ukusatshalaliswa kwegesi ngokujwayelekile, okuholela ekuhlulekeni kwesando se-DTH kuphela ukukhipha igesi. chips ngaphandle kokuthinta umsebenzi.
Isizathu sesi-3: Ikhanda le-DTH Hammer Alinalo uphawu
Izinsimbi ze-dill ekhanda lesando se-DTH zonke zihlinzekwa ngembobo yokukhipha umoya ukuze uxhumane nephansi lomthombo, futhi izingcezu ze-dill kanye nesando se-DTH zixhunywe yi-splines, futhi igebe elifanele likhulu.
Lapho indawo ye-diving ihlangabezana nayo phakathi nenqubo yokumba noma uketshezi luka-cementing ludinga ukungezwa ngenxa yobunzima bokwakhiwa komthombo, kunenani elikhulu lezingxube eziwuketshezi neziqinile emgodini ongaphansi kanye negebe phakathi kodonga lomthombo kanye nepayipi lokubhoboza. Lapho kusetshenziswa uketshezi lwe-cementing, ukunikezwa kwegesi kuzomiswa futhi, ukuze i-valve yokuhlola ekupheleni kwesando se-DTH izovalwa ngokushesha. Ukususwa komkhono we-spline. Bese, isando se-DTH sifana nenkomishi yamanzi engenalutho ibheke phansi oketshezini. Igesi evalelwe emgodini ongaphakathi wesando se-DTH nakanjani izocindezelwa uketshezi lwangaphandle. Uketshezi olwengeziwe emgodini wesando. Kodwa-ke, uma amanzi amaningi engena emgodini ongaphakathi wesando se-DTH, ezinye izicucu zizolethwa kupheya ye-piston yokunyakaza kwengaphakathi langaphakathi, okwandisa kakhulu imvamisa yokunamathela yepiston.
Ngesikhathi esifanayo, uma ama-cuttings afakwe phakathi kwe-piston kanye nobuso bokuphela kokuxhumana be-dill bit ayikwazi ukususwa isikhathi eside, amandla amaningi omthelela we-piston azodonswa yi-cuttings futhi angeke adluliselwe phansi ngokuphumelelayo, okungukuthi, umthelela ubuthakathaka.
Isizathu 4: I-Dill Bit Stuck
Ibhithi ye-dill kanye nesando se-DTH zilingana ngokulinganayo, futhi igebe elilinganayo likhulu uma kuqhathaniswa, futhi umsila wezinhlobo eziningi ze-DTH hammerdill bit splines ungadalula umkhono we-spline ofanisiwe. Uma imfucumfucu imanzi, kulula ukwenza isikhwama sodaka futhi unamathele ku-dill bit. Uma lesi simo singathuthukisiwe ngesikhathi, isikhwama sodaka sizofaka igebe lokufaka i-spline, elizothinta ukudluliswa okuphumelelayo kwamandla omthelela we-piston yesando se-DTH; ngokujulile, i-dill kanye nomkhono we-spline kungase kunamathele ndawonye.
Isizathu 1: Ukucubungula Okungalungile
Ukufana phakathi kwe-DTH hammer piston kanye ne-cylinder liner kuqinile, futhi ubude obuhambisanayo bude, futhi ukunemba kwemishini kanye nokushelela kwendawo kuyadingeka ukuba kube phezulu, okudinga i-cylindricity ephezulu kakhulu ye-piston kanye ne-cylinder liner. Uma i-cylindricity ingaqinisekisiwe, ipiston izoba nokunamathela okuqondisayo noma ngezikhathi ezithile, futhi ekugcineni induku yokubhoboza kungase kudingeke ukuthi iphakanyiswe futhi yehliswe kaningi ukuze kugcinwe isando se-DTH.
Ukwengeza, ukuqina kwe-casing yangaphandle yesando se-DTH nakho kuyisici esibalulekile esikhawulela impilo yesevisi yesando se-DTH. Uma ukuqina kwayo kungalungile, isando se-DTH sizokhubazekile ngenxa yokushayisana njalo nodonga lwe-borehole ngesikhathi sokumba; lapho isando se-DTH singasebenzi, ngokuvamile kudingekile ukudlidliza, ukuhlakazeka nokuhlanza isando se-DTH, esizokwandisa umonakalo we-casing yangaphandle yesando se-DTH. Ukuguqulwa; futhi ukuguqulwa kwe-casing yangaphandle kuzobangela ukuthi izingxenye zangaphakathi zesando se-DTH ziboshwe futhi azikwazi ukuhlakazwa, okuzogcina kubangele ngokuqondile ukuthi isando se-DTH sikhishwe.
Isizathu sesi-2: I-Backstop Seal ye-DTH Hammer Tail ayithembekile
Njengamanje, umsila wesando se-DTH ufakwe i-valve yokuhlola, futhi isakhiwo saso siboniswa esithombeni. Ifomu lokuvala lincike kakhulu ekucindezelweni kwekepisi yenjoloba eyindilinga noma indandatho ye-O efakwe kukepisi eliyindilinga lensimbi ukuze kuqhutshekwe ukuvala i-backstop. Umsebenzi wayo we-backstop ubonakala ngomzimba onwebekayo, futhi umzimba onwebekayo ngokuvamile unethuluzi eliqondisayo.
Le ndlela yokuvala uphawu inezinkinga ezilandelayo:
(1) Kukhona ukungqubuzana phakathi kwentwasahlobo nomshini wokuqondisa, okuzothinta isivinini sokunqamuka kwevalvu yokuhlola;
(2) Ukucindezelwa kaningi kanye nokungqubuzana kwezinto zokuvala zenjoloba isikhathi eside kuzodala ukuguga ngokweqile; (3) Umthombo ukhathele futhi ulimele, okuholela ekuhlulekeni kwe-backstop seal;
(4) Lapho igesi imisiwe, umfutho womoya ongaphakathi kwesando se-DTH uyancipha ngokuzumayo, okubangela ukuba i-rock powder noma ingxube ye-liquid-solid igeleze ibuyele emgodini ongaphakathi wesando se-DTH, okuzokwenza ukuthi i-piston ibambelele;
(5) Okubi nakakhulu ukuthi amanzi athwala ama-cuttings aye endaweni ye-valve (i-valve yohlobo lwe-DTH isando), ukuze ipuleti le-valve lingakwazi ukuvala ukusatshalaliswa kwegesi ngokujwayelekile, okuholela ekuhlulekeni kwesando se-DTH kuphela ukukhipha igesi. chips ngaphandle kokuthinta umsebenzi.
Isizathu sesi-3: Ikhanda le-DTH Hammer Alinalo uphawu
Izinsimbi ze-dill ekhanda lesando se-DTH zonke zihlinzekwa ngembobo yokukhipha umoya ukuze uxhumane nephansi lomthombo, futhi izingcezu ze-dill kanye nesando se-DTH zixhunywe yi-splines, futhi igebe elifanele likhulu.
Lapho indawo ye-diving ihlangabezana nayo phakathi nenqubo yokumba noma uketshezi luka-cementing ludinga ukungezwa ngenxa yobunzima bokwakhiwa komthombo, kunenani elikhulu lezingxube eziwuketshezi neziqinile emgodini ongaphansi kanye negebe phakathi kodonga lomthombo kanye nepayipi lokubhoboza. Lapho kusetshenziswa uketshezi lwe-cementing, ukunikezwa kwegesi kuzomiswa futhi, ukuze i-valve yokuhlola ekupheleni kwesando se-DTH izovalwa ngokushesha. Ukususwa komkhono we-spline. Bese, isando se-DTH sifana nenkomishi yamanzi engenalutho ibheke phansi oketshezini. Igesi evalelwe emgodini ongaphakathi wesando se-DTH nakanjani izocindezelwa uketshezi lwangaphandle. Uketshezi olwengeziwe emgodini wesando. Kodwa-ke, uma amanzi amaningi engena emgodini ongaphakathi wesando se-DTH, ezinye izicucu zizolethwa kupheya ye-piston yokunyakaza kwengaphakathi langaphakathi, okwandisa kakhulu imvamisa yokunamathela yepiston.
Ngesikhathi esifanayo, uma ama-cuttings afakwe phakathi kwe-piston kanye nobuso bokuphela kokuxhumana be-dill bit ayikwazi ukususwa isikhathi eside, amandla amaningi omthelela we-piston azodonswa yi-cuttings futhi angeke adluliselwe phansi ngokuphumelelayo, okungukuthi, umthelela ubuthakathaka.
Isizathu 4: I-Dill Bit Stuck
Ibhithi ye-dill kanye nesando se-DTH zilingana ngokulinganayo, futhi igebe elilinganayo likhulu uma kuqhathaniswa, futhi umsila wezinhlobo eziningi ze-DTH hammerdill bit splines ungadalula umkhono we-spline ofanisiwe. Uma imfucumfucu imanzi, kulula ukwenza isikhwama sodaka futhi unamathele ku-dill bit. Uma lesi simo singathuthukisiwe ngesikhathi, isikhwama sodaka sizofaka igebe lokufaka i-spline, elizothinta ukudluliswa okuphumelelayo kwamandla omthelela we-piston yesando se-DTH; ngokujulile, i-dill kanye nomkhono we-spline kungase kunamathele ndawonye.
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