EMSCO FD-1000 Mud Pump: OEM Lub Hwj Chim thiab Kev Ntseeg Zoo Tshaj Plaws, Tsim los thov Kev Ua Haujlwm Drilling
EMSCO FD-1000 yog qhov zoo tshaj plaws 1000 HP triplex ib leeg-ua cov av nkos, ua tib zoo tsim los ntawm Cov Khoom Siv Tseem Ceeb (OEM), tsim los ua kom muaj kev ua tau zoo tshaj plaws hauv kev xav tau kev ua haujlwm xws li roj, roj, thiab cov khoom siv hluav taws xob hauv ntiaj teb. Leveraging EMSCO cov cuab yeej cuab tam sib sib zog nqus thiab thev naus laus zis hauv cov cuab yeej drilling, FD-1000 tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov neeg ua haujlwm drilling thoob ntiaj teb nrhiav cov dej ntws zoo thiab txhim khu kev qha, ua lub zog tseem ceeb kom ntseeg tau tias kev ua tiav ntawm cov dej drilling.
FD-1000: Kev txhais lus tob ntawm OEM Excellence
A. Lub Hwj Chim Kawg - Lub Pob Zeb ntawm Lub Zog thiab Lub Zog
Lub hwj chim kawg yog lub plawv ntawm cov av nkos twj tso kua mis, muab ib tug tas mus li mov ntawm muaj zog thrust rau siab - kua xaav. FD-1000 lub hwj chim kawg tsim tag nrho txiav txim siab txog kev ruaj ntseg thiab kav ntev nyob rau hauv kev ua haujlwm huab cua.
Kev tsim kho ncej:
FD-1000 lub zog kawg thav duab yog tsim los ntawm siab- lub zog steel daim hlau thiab ua rau muaj kev ntxhov siab tag nrho- kev kho cua sov tom qab vuam kom tshem tawm cov kev ntxhov siab hauv vuam, ua kom cov qauv kev ruaj ntseg thiab kev ruaj ntseg ntawm tus ncej thiab tiv thaiv deformation nyob rau hauv siab loads. Nyob rau hauv qhov tseem ceeb ntawm kev ntxhov siab xws li lub crankshaft bearing rooj, lub thav duab suav nrog kev txhawb nqa tav, ntxiv dag zog rau nws cov rigidity thiab load-bearing muaj peev xwm.
Precision Iav System:
FD-1000 siv lub tshuab ua haujlwm zoo herringbone iav tsav, muaj koob npe nrov rau nws txoj kev sib kis tau zoo thiab muaj peev xwm nqa tau siab. Ob lub ntsiab iav (bull gear) thiab lub pinion yog forged los ntawm siab - zoo, siab - lub zog alloy steel, nyob rau hauv cov machining meej thiab nruj txheej txheem kev kho cua sov kom ntseeg tau zoo heev hnav tsis kam thiab qaug zog ntawm cov iav hniav. Lub V-zoo li tus hniav tsim ntawm herringbone gears tso cai rau kev sib hloov quab yuam thiab nws tus kheej tshem tawm ntawm axial rog thaum lub sij hawm meshing, yog li txo cov axial loads ntawm bearings, txo qis kev khiav hauj lwm suab nrov thiab kev co, thiab txhim kho kev sib kis thiab lub neej iav.
Robust Crankshaft Assembly:
FD-1000's crankshaft yog tsim los ntawm siab- lub zog alloy steel los ntawm cov txheej txheem casting los yog forging (F-series twj feem ntau siv alloy steel casting lossis forging), thiab dhau los ntawm kev kho cua sov thiab kev sib npaug kom ntseeg tau tias nws lub zog siab, toughness, thiab kev ua haujlwm du. Lub nplhaib herringbone iav yog haum rau lub crankshaft, ruaj ntseg los ntawm kev cuam tshuam haum thiab bolted xauv.
Ntev ntev Pinion Ncej thiab Bearings:
Lub pinion ncej tseem forged los ntawm siab - zoo alloy steel, nrog ib tug sib xyaw herringbone iav machined rau nws. Cov hniav iav yog nruab nrab - tawv rau kev hnav zoo. Lub pinion ncej feem ntau yog kev txhawb nqa los ntawm ib leeg - kab cylindrical roller bearings (puab lub nplhaib tsis muaj tav), cov qauv kabmob uas txhawb kev saib xyuas thiab tuaj yeem tiv taus qhov hnyav radial.
High Wear{0}}Resistant Crosshead Assembly:
Cov khoom sib txuas ntawm lub taub hau yog raug nrum los ntawm siab - zoo cam khwb cia hlau los yog hlau ductile, thaum cov ntawv qhia yog ua los ntawm manganese bronze los yog tshwj xeeb cam khwb cia hlau nrog zoo heev hnav tsis kam. Cov hlau no (los yog hlau) ntawm bronze (los yog tshwj xeeb cam khwb cia hlau) kev sib txhuam khub ua ke muaj cov coefficient ntawm kev sib txhuam thiab zoo tus kheej -lubricating zog, zoo txo tau hnav txawm tias lub sij hawm tsis zoo lubrication tej yam kev mob, generating me ntsis tshav kub, yog li txuas ntxiv kev pab cuam lub neej ntawm lub crosshead thiab qhia daim hlau. Cov ntawv qhia kev hloov pauv tau tsim ua rau kev saib xyuas ntau dua kev lag luam thiab yooj yim, raws li cov ntawv qhia yog hnav qhov chaw uas nws hloov tau tus nqi qis dua li ntawm crosshead lossis ncej nws tus kheej.
Comprehensive Lubrication System:
FD-1000 lub zog kawg siv cov txheej txheem lubrication sib xyaw ua ke nrog lub siab lubrication thiab txaws lubrication, ua kom txhua qhov txav txav tseem ceeb (cov iav, bearings, crossheads, thiab lwm yam) tau txais kev sib txuas thiab txaus lubrication thiab txias.
B. Fluid End – Standard OEM tsim rau Efficiency thiab Durability
FD-1000 tus qauv OEM kua dej kawg yog nruj me ntsis tsim thiab tsim nyob rau hauv raws li API 7K cov qauv, kom ntseeg tau ruaj khov thiab txhim khu kev qha twj tso kua mis nyob rau hauv ntau yam drilling kua.
Tsim Kev Ncaj Ncees thiab API 7K Ua raws:
FD-1000 kua kawg nta lub valve classic- dhau-valve tsim, nrog lub valve lub lauj kaub ua raws li API #6 tus qauv. Tag nrho cov kua dej kawg yog tsim thiab sim ua kom tau raws li API 7K cov lus qhia tshwj xeeb, lav cov khoom sib hloov, kev nyab xeeb, thiab kev ua haujlwm zoo heev.
Modular Structure thiab High - Cov Khoom Siv Zoo:
Cov kua dej kawg modules yog integrally forged los ntawm siab - zoo, siab - zog alloy steel (siv qib xws li 35CrMo los yog 40CrMnMo, los yog 4130/4135 alloy steel). Cov txheej txheem forging muab cov qauv zoo hauv cov nplej thiab cov khoom siv kho tshuab rau cov qauv, uas tom qab ntawd tau ua tiav kev ua haujlwm zoo thiab kev kho cua sov (nrog rau cov quench hardening) kom ua tiav lub zog siab, tawv, thiab qaug zog, tiv taus siab - siab pulsations thiab drilling kua yaig, tiv thaiv kev tawg thiab ntxuav tawm.
Valve Assembly - Precision thiab Durability:
FD-1000 yog nruab nrog API #6 lub rooj sib txoos. OEM lub cev lub cev thiab cov rooj zaum feem ntau yog forged los ntawm siab - zoo alloy steel 20CrMnTi thiab tau txais kev kho mob carburizing thiab quenching, nqa cov ua hauj lwm saum npoo hardness mus rau HRC60, muab kev hnav zoo heev thiab kev cuam tshuam. Valve inserts yog ua los ntawm high-performance polyurethane los yog cov khoom siv roj hmab tshwj xeeb, kom ntseeg tau tias kev sib khi ruaj khov thiab kev pab cuam lub neej ntev nyob rau hauv kev kub siab thiab ntau yam dej hauv qhov dej.
Valve Npog - Muaj kev nyab xeeb, txhim khu kev qha, thiab yooj yim los tuav:
FD-1000 nta lub hau ntswj-hauv valve npog tsim. Cov qauv no ua kom ntseeg tau tias kev sib khi ntawm lub valve chamber nyob rau hauv kev ua haujlwm siab, thaum tseem ua kom yooj yim disassembly thiab sib dhos thaum lub valve tivthaiv tshuaj xyuas lossis hloov yuav tsum tau ua.
High-Cov Kev Ua Haujlwm Zoo Tshaj Plaws - Txuas Ntxiv Hnav Lub Neej:
FD-1000 tus qauv OEM liners feem ntau yog siab- zoo bimetallic liner. Lawv lub plhaub sab nrauv yog ua los ntawm siab- lub zog forged steel, thiab cov hauv ob sab hauv yog centrifugally cam khwb cia siab - chrome cam khwb cia hlau ( puab bore hardness tuaj yeem ncav cuag HRC62 tom qab kev kho cua sov), muab kev hnav zoo heev thiab corrosion kuj. Raws li cov txheej txheem kev khiav hauj lwm, siab - zoo bimetallic liners feem ntau muaj lub neej kev pab ntau tshaj 800 teev. Qee qhov F-series twj tso kua mis muaj qhov tshwj xeeb "HP txhim kho daim di ncauj tsim" lossis "liner lub xub pwg txhawb nqa tsim," uas tiv thaiv axial hloov pauv ntawm cov ntaub hauv ob sab hauv siab, ntxiv dag zog rau lub liner lub neej kev pab cuam thiab kev nyab xeeb nyob rau hauv siab -siab, high-erosion ib puag ncig.
Cov Pistons thiab Piston Rods - Txhim khu kev sib khi thiab xa hluav taws xob:
FD-1000's OEM pistons yog tsim los rau lub neej ua haujlwm siab tshaj plaws, feem ntau muaj lub siab - lub zog forged steel piston core (42CrMo lossis 45 # steel), uas yog tshuaj sib xyaw ua ke rau kev hnav tshwj xeeb- tiv taus polyurethane lossis nitrile roj hmab elastomer. Qhov kev tsim no ua kom lub piston tswj tau zoo sealing nyob rau hauv ntau yam drilling kua thiab ua pov thawj zoo heev extrusion kuj thiab hnav tsis kam. Piston rods yog ua los ntawm high-zoo, siab{14}}lub zog alloy steel (xws li, SAE 4140 / 42CrMo / 35CrMo), forged thiab tshav kub- kho kom zoo rau cov khoom siv kho tshuab, nrog cov pas nrig nto feem ntau chrome-plated los muab kev hnav zoo heev thiab corrosion kuj, ua kom muaj zog.
EMSCO FD-1000 Standard OEM Accessories: Foundation rau Pump Efficiency thiab Safety
Txhawm rau kom ntseeg tau tias qhov kev ua haujlwm zoo tshaj plaws thiab kev nyab xeeb siab tshaj plaws ntawm FD-1000 av nkos twj tso kua mis, peb muab nws nrog cov khoom siv OEM zoo tshaj plaws. Cov khoom siv no ua haujlwm ua ke nrog lub twj tso kua mis lub cev los ua kom tiav thiab ua haujlwm tau zoo.
Pulsation Dampener:
FD-1000 los ntawm tus qauv nrog lub siab -kev ua tau zoo pulsation dampener ntawm cov kab tawm (F-1000 yog nruab nrog KB-75 hom dampener). Cov dampeners OEM tshwj xeeb no muaj lub cev muaj zog ib leeg-dawb forged plhaub thiab lub zais zis ruaj khov (cov ntaub ntawv sib txawv muaj nyob ntawm qhov nruab nrab), zoo nqus cov pa tawm ntawm lub twj tso kua mis tawm, ua kom cov kua dej ntws zoo, yog li tiv thaiv cov khoom siv qis los ntawm kev cuam tshuam thiab txo cov raj xa dej. Txheem dampeners tuaj nrog API-qib hauv qab kev sib txuas flanges.
Kev Nyab Xeeb Valve:
Lub valve ruaj khov thiab txhim khu kev qha (piv txwv li, F-1000 yog nruab nrog JA-3 shear pin kev nyab xeeb valve) yog tus qauv kev nyab xeeb ntawm FD-1000. Lub valve no tau raug ntsuas los ua kom nrawm nrawm thaum lub zog siab tshaj qhov txwv, tiv thaiv cov av nkos thiab tag nrho cov kev kub siab manifold system los ntawm kev puas tsuaj ntau dhau, ua kom muaj kev nyab xeeb ntawm kev ua haujlwm.
Liner Cooling Spray System:
Kev sib xyaw ua ke ntawm cov tshuab ua kom txias txias feem ntau suav nrog lub cev muaj zog ywj siab- tsav centrifugal spray twj, lub tank dej txias, thiab cov txheej txheem cov kab tsuag thiab cov nozzles ncaj qha rau ntawm qhov chaw sib txuas ntawm lub piston / liner. Cov txheej txheem no tsis tu ncua txau cov roj lubricating txias rau hauv lub liner sab hauv phab ntsa thiab lub piston qhov chaw, txo cov cua sov uas tsim los ntawm kev sib txhuam thiab ua kom lub neej ntev kev pab cuam ntawm liners thiab pistons, tshwj xeeb tshaj yog thaum tuav siab - kub los yog abrasive drilling kua.
EMSCO FD-1000 Technical Specifications
Rau kev siv ceev ceev thiab kev sib piv, cov ntsiab lus tseem ceeb ntawm EMSCO FD-1000 av nkos twj tso kua mis tau sau tseg hauv qab no:
|
Parameter |
Tus nqi |
|
Qauv |
EMSCO FD-1000 |
|
Hom |
Triplex Tib -Twj Piston |
|
Rated Input zog |
1000 HP (746 kW) TSI |
|
Rated Stroke Ceev |
140 SPM |
|
Stroke Length |
10 nti (254 hli) |
|
Max Liner Bore |
6 ¾ nti (171 hli) |
|
Hom iav |
Herringbone |
|
Gear Ratio |
4.32:1 |
|
Valve lauj kaub hom (API) |
API #6 |
|
Suction Manifold txuas |
12 inches NPT |
|
Discharge Manifold txuas |
5 nti API Flange, 5000 psi Ua Haujlwm Siab |
|
Pinion Ncej Diameter |
7 ¾ nti (197 hli) |
|
Zuag qhia tag nrho Dimensions (L x W x H) |
Approx . 13' 6" x 7' 5" x 5' 11 1/8" (4115mm x 2261mm x 1807mm) |
|
Kwv yees qhov hnyav |
38,070 lbs (17,268 kg) |
|
Lubrication System |
Kev sib xyaw ntawm Siab thiab Txau Lubrication |
Performance Parameters: Kev ua tau zoo heev nyob rau hauv siab siab
Kev ua haujlwm tsis zoo ntawm EMSCO FD-1000 av nkos twj ncaj qha cuam tshuam rau kev ua haujlwm thiab kev ua haujlwm ntawm kev ua haujlwm drilling. Cov lus hauv qab no qhia meej txog qhov kev hloov pauv thiab qhov sib thooj siab tshaj qhov tso tawm ntawm FD-1000 ntawm qhov sib txawv liner qhov ntau thiab tsawg thiab stroke nrawm. Cov ntaub ntawv no yog xam raws li 90% mechanical efficiency thiab 100% volumetric efficiency, muab lub hauv paus txhim khu kev qha rau drilling engineers los tsim hydraulic tsis.
EMSCO FD-1000 Performance Parameter Table
|
Liner Loj (hauv / mm) |
Max tso zis siab (psi / MPa) |
Pump Stroke Speed (SPM) |
Input zog (HP / kW) |
Kev xa tawm (GPM / LPM) |
Kev xa mus rau Stroke (gal / L) |
|
6 ¾ (171) |
2370 (16.3) |
140 |
1000 (746) |
651 (2464) |
4.65 (17.6) |
|
|
|
130 |
929 (693) |
604 (2286) |
|
|
|
|
120 |
857 (639) |
558 (2112) |
|
|
|
|
110 |
786 (586) |
511 (1934) |
|
|
|
|
100 |
714 (533) |
465 (1760) |
|
|
6 ½ (165) |
2558 (17.6) |
140 |
1000 (746) |
603 (2282) |
4.31 (16.3) |
|
|
|
130 |
929 (693) |
560 (2120) |
|
|
|
|
120 |
857 (639) |
517 (1957) |
|
|
|
|
110 |
786 (586) |
474 (1794) |
|
|
|
|
100 |
714 (533) |
431 (1631) |
|
|
6 ¼ (159) |
2770 (19.1) |
140 |
1000 (746) |
558 (2112) |
3.98 (15.0) |
|
|
|
130 |
929 (693) |
518 (1961) |
|
|
|
|
120 |
857 (639) |
478 (1809) |
|
|
|
|
110 |
786 (586) |
438 (1658) |
|
|
|
|
100 |
714 (533) |
398 (1506) |
|
|
6 (152) |
3010 (20.8) |
140 |
1000 (746) |
514 (1945) |
3.67 (13.9) |
|
|
|
130 |
929 (693) |
477 (1805) |
|
|
|
|
120 |
857 (639) |
440 (1665) |
|
|
|
|
110 |
786 (586) |
404 (1529) |
|
|
|
|
100 |
714 (533) |
367 (1389) |
|
|
5 ¾ (146) |
3270 (22.5) |
140 |
1000 (746) |
472 (1787) |
3.37 (12.8) |
|
|
|
130 |
929 (693) |
438 (1658) |
|
|
|
|
120 |
857 (639) |
404 (1529) |
|
|
|
|
110 |
786 (586) |
371 (1404) |
|
|
|
|
100 |
714 (533) |
337 (1276) |
|
|
5 ½ (140) |
3575 (24.6) |
140 |
1000 (746) |
432 (1635) |
3.09 (11.7) |
|
|
|
130 |
929 (693) |
402 (1522) |
|
|
|
|
120 |
857 (639) |
371 (1404) |
|
|
|
|
110 |
786 (586) |
339 (1283) |
|
|
|
|
100 |
714 (533) |
309 (1170) |
|
|
5 ¼ (133) |
3920 (27.0) |
140 |
1000 (746) |
394 (1491) |
2.81 (10.6) |
|
|
|
130 |
929 (693) |
365 (1382) |
|
|
|
|
120 |
857 (639) |
337 (1276) |
|
|
|
|
110 |
786 (586) |
309 (1170) |
|
|
|
|
100 |
714 (533) |
281 (1064) |
|
|
5 (127) |
4330 (29.9) |
140 |
1000 (746) |
357 (1351) |
2.55 (9.7) |
|
|
|
130 |
929 (693) |
331 (1253) |
|
|
|
|
120 |
857 (639) |
306 (1158) |
|
|
|
|
110 |
786 (586) |
280 (1060) |
|
|
|
|
100 |
714 (533) |
255 (965) |
|
|
4 ½ (114) |
5000 (34.5) |
140 |
1000 (746) |
289 (1094) |
2.07 (7.8) |
|
|
|
130 |
929 (693) |
268 (1014) |
|
|
|
|
120 |
857 (639) |
248 (939) |
|
|
|
|
110 |
786 (586) |
227 (859) |
|
|
|
|
100 |
714 (533) |
207 (784) |
|
Kev siv ntau yam, Muaj peev xwm thov tau Drilling ib puag ncig
Lub EMSCO FD-1000 av nkos twj tso kua mis, nrog nws cov kev ua tau zoo heev thiab tsim muaj zog, yog dav siv nyob rau hauv ntau yam xav tau kev drilling ua hauj lwm.
Roj thiab Roj Kev Tshawb Fawb thiab Kev Tsim Khoom:
Txawm hais tias nyob rau ntawm ntug dej hiav txwv drilling rigs lossis kev ua haujlwm sab nrauv, FD-1000 tuaj yeem txhim kho cov dej drilling ntawm ntau yam kev sib nqus thiab cov khoom, muab kev txhawb nqa hydraulic ruaj khov rau cov roj thiab roj zoo drilling.
Kev Nyab Xeeb Valve:
Lub valve kev nyab xeeb yog kab kawg ntawm kev tiv thaiv hauv lub siab -siab. Lub FC-2200 yog nruab nrog API-raws li shear pin kev nyab xeeb valve los yog resettable kev nyab xeeb valve, ntsuas rau 7500 PSI. Yog tias qhov system siab tshaj qhov teeb tsa, qhov kev nyab xeeb valve tau qhib, tso siab dhau thiab tiv thaiv lub twj tso kua mis lub cev, manifold, thiab lwm yam khoom siv qis los ntawm kev puas tsuaj ntau dhau. Kev kub ntxhov ntau dhau tuaj yeem ua rau muaj kev puas tsuaj loj; qhov kev nyab xeeb valve tiv thaiv lub twj tso kua mis lossis lub kaw lus rupture los ntawm lub sij hawm siab nyem, ua rau nws yog ib qho tseem ceeb rau cov neeg ua hauj lwm thiab cov cuab yeej kev ruaj ntseg.
Liner Spray System:
Lub tshuab no muaj lub twj tso kua mis tsuag (feem ntau yog lub twj tso kua mis centrifugal, uas tuaj yeem siv tau- tsav los ntawm lub pinion ncej lossis los ntawm lub tshuab hluav taws xob ywj pheej), lub tank dej txias, thiab cov kab tsuag thiab cov nozzles ncaj qha rau ntawm lub piston / liner interface. Nws txoj haujlwm yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam. Lub siab -ceev reciprocating txav nruab nrab ntawm lub piston thiab liner ua rau muaj kev sib txhuam tseem ceeb, uas yog ntau tshaj tawm nyob rau hauv siab - siab.
Superior Manufacturing thiab Quality Assurance
Qhov kev ua tau zoo ntawm EMSCO FC-2200 av nkos twj tso kua mis stems los ntawm peb relentless nrhiav kev tsim zoo tshaj plaws thiab kev tswj kom zoo.
API 7K Standard Ua Raws:
Peb FC-2200 av nkos twj tso kua mis thiab tag nrho lawv cov khoom tseem ceeb ntawm lub siab, nrog rau cov kua kawg modules, li qub, thiab lwm yam, yog tsim, tsim, thiab sim ua raws li API Specification 7K.
Geothermal Drilling:
Hauv geothermal zoo drilling, FD-1000 tuaj yeem ua tau raws li nws cov kev xav tau ntawm cov kua dej tshwj xeeb, ua kom muaj kev txhim kho zoo ntawm cov khoom siv hluav taws xob.
Deep Well Drilling Peev Xwm:
FD-1000 yog tsim tshwj xeeb rau kev ua haujlwm tob tob. Nws tsis tu ncua siab - siab tso zis thiab txhim khu kev qha loj - kev xa khoom xa tuaj muaj peev xwm yog qhov lav zoo rau kev ua tiav cov haujlwm sib sib zog nqus thiab ua haujlwm drilling. Nws lub zog OEM tsim, stemming los ntawm cov cuab yeej cuab tam nplua nuj ntawm F-series thiab nruj ua raws li API 7K cov qauv, ua rau nws muaj peev xwm tsis tsuas yog siv cov qauv dej-raws li drilling kua tab sis kuj ua tau zoo tuav ntau nyuaj drilling kua tshuab xws li roj-raws li thiab cov khoom siv hluavtaws ntxiv thaum xaiv cov muds uas tsim nyog. ntau.
Cim npe nrov: emsco fd-1000 av nkos twj tso kua mis, Tuam Tshoj emsco fd-1000 av nkos twj manufacturers, lwm tus neeg, Hoobkas
