Nkhani

TheMota Yosamutsa Anthu Mwabwino (PDM), yomwe imadziwikanso kuti“mota yamatope,”ndi dziwe lozama kwambirichida chobowoleraimagwiritsidwa ntchito mu ntchito za mafuta ndi gasi. Imasintha mphamvu ya hydraulic kuchokera ku madzi obowola (matope) kukhala makina ozungulira kuti iyendetse chobowola, zomwe zimapangitsa kuti chikhale chofunikira pakubowola molunjika, zitsime zopingasa, komanso kusokoneza njira.

I. Kapangidwe ndi Mfundo Yogwirira Ntchito

1. Zigawo Zofunika

Valavu Yodutsa: Zimalola kuti madzi aziyenda bwino panthawi yopunthwa kuti apewe kukwera kwa kuthamanga kwa magazi.

Gawo la Magalimoto: Chigawo cha mphamvu chapakati, chopangidwa ndistator(chubu chokhala ndi elastomer) ndichozungulira(chokulungira chachitsulo chozungulira).

Chigwirizano cha Padziko Lonse: Imasintha kayendedwe ka rotor kukhala kozungulira mozungulira.

Shaft Yoyendetsa: Imatumiza mphamvu ku drill bit, yothandizidwa ndi ma bearing assemblies a axial/radial loads.

2.Mfundo Yogwirira Ntchito

Madzi obowola opanikizika kwambiri amalowa mu injini, zomwe zimapangitsa kuti rotor izungulire mkati mwa stator mozungulira (kuzungulira + kuzungulira).

Kuzungulira kwa rotor kumasamutsidwa kudzera mu cholumikizira cha universal ndi shaft yoyendetsa kupita ku drill bit.

Kuchuluka kwa madzi (Q) vs. RPM (N):

N=qQ×ηvpa

Q: Kuthamanga kwa madzi (L/s)

qKusamuka pa kuzungulira (L/rev)

ηvKugwiritsa ntchito bwino kwa voliyumu (nthawi zambiri 80–90%)

II. Kugawa magulu a PDM

1. Mwa Kapangidwe

Single-Lobe PDM (kapangidwe ka 1:2): Liwiro lalikulu, mphamvu yochepa (monga kuboola mabowo ang'onoang'ono).

Multi-Lobe PDM (monga, kasinthidwe ka 5:6): Liwiro lotsika, mphamvu yayikulu (monga, ya ma bits akuluakulu kapena mapangidwe olimba).

2. Pogwiritsa ntchito

PDM Yokhazikika: Amagwiritsidwa ntchito m'zitsime zowongoka kapena zosavuta.

Nyumba Yopindika PDM: Ili ndi ngodya yokhazikika yokhota (monga, 1°, 1.5°, 2°) yowongolera mbali.

Chosakaniza Chopangira Mphamvu-PDM: Ikuphatikiza RPM yapamwamba (turbine) ndi torque yapamwamba (PDM).

III. Magawo Ofunikira Ogwirira Ntchito

Chizindikiro	Kufotokozera
Liwiro (RPM)	Kawirikawiri 100–300 RPM, zimadalira kapangidwe ka lobe ndi kuchuluka kwa madzi.
Torque (N·m)	Kuwonjezeka ndi magawo a injini (stator yayitali = torque yokwera).
Kutsika kwa Kupanikizika	ΔP yogwira ntchito: 2–5 MPa; kupanikizika kwambiri kungawononge stator elastomer.
Malire a Kutentha	Ma stator okhazikika: 120–150°C; ma stator otentha kwambiri (monga, FKM): 180°C+.
Kugwirizana kwa Zinthu	Imagwira ntchito ndi ma PDC bits, ma roller cones, ndi zina zotero (ziyenera kugwirizana ndi zofunikira za RPM/torque).

IV. Kusankha ndi Kugwiritsa Ntchito

1. Zofunikira Zosankha

Kuuma kwa Mapangidwe: Mapangidwe olimba amafunika ma PDM ambiri kuti apange mphamvu yapamwamba.

Njira Yoyendera ChitsimeZitsime zolowera zimafuna ma PDM opindika.

Madzi ObowolaMatope ochokera ku mafuta amafuna ma elastomer osagwira mafuta (monga HNBR); malo okhala ndi H₂S amafunika zinthu zosagwira mafuta.

2. Mapulogalamu Odziwika

Kubowola Mopingasa: Imagwiritsidwa ntchito ndi makina a MWD/LWD kuti iyendetse bwino.

Kutsata Zinthu Panjira ndi Kukonza Zinthu: Imapereka kuzungulira pambuyo potuluka m'chikwama.

Zitsime Zakuya/Zakuya Kwambiri: Imafuna ma stator otentha kwambiri komanso zipangizo zolimba.

V. Kulephera ndi Kukonza Kawirikawiri

Chizindikiro	Chifukwa Chotheka	Yankho
Kutsika kwa Liwiro	Kulephera kwa stator/elastomer	Sinthani stator; yang'anani matope olimba.
Palibe Torque Output	Kulephera kwa Universal Joint/Drive Shaft	Yang'anani ndikusintha ziwalo zomwe zawonongeka.
Kutaya madzi	Kulephera kwa chisindikizo/kulumikizana kosamasuka	Sinthani zisindikizo; mangani molingana ndi zofunikira za API.
Kugwedezeka Kwambiri	Kusalingana kwa Rotor kapena kusagwirizana kwa biti	Yang'anani kulondola kwa rotor; konzani bwino bit.

VI. Zochitika Zamtsogolo

1.Ma PDM Anzeru: Masensa ophatikizidwa kuti aziwunika nthawi yeniyeni ya torque/tembiricha/kugwedezeka.

2.Zipangizo Zapamwamba: Ma rotor opangidwa ndi nanocoated, 200°C+ elastomers.

3.Machitidwe Osakanikirana: Kuphatikiza kwa PDM + turbine kwa mapangidwe ovuta.

Landrill ikhoza kupereka mitundu ya ma motor a matope (PDMS) abwino kwambiri. Ngati muli ndiNgati muli ndi chidwi nawo, chonde musazengereze kulankhula nafe. Tikhoza kukutumizirani zambiri.

Junnie Liu

Foni yam'manja/Whatsapp:+0086-158 7765 8727
Email: landrill@landrilltools.com

Nthawi yotumizira: Epulo-03-2025