Eccentric casing system / ODEX system

Lus piav qhia luv luv:

Drilling los ntawm formations nrog xoob, unconsolidated cov khoom ib txwm tuaj nrog cov teeb meem xws li lub qhov bore caving nyob rau hauv los yog collapsing.Yuav ua li cas zam cov teeb meem no?Nrog xyoo ntawm kev xyaum thiab kev tshawb fawb, peb tsim Eccentric casing system / ODEX system siv rau fore strata nrog slit, xuab zeb los yog pebbles me me.Nrog nws cov qauv yooj yim, ua haujlwm yooj yim thiab txhim khu kev qha, Eccentric casing system / ODEX system tuaj yeem ua ntej lub casing yooj yim rau qhov tob li ntawm 20 meters, thiab nws tuaj yeem rov qab tau nrog lub neej ua haujlwm ntev.

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Khoom cim npe

Cov qauv ntawm Eccentric casing system / ODEX system

Cov qauv nta

Cov qauv ntawm cov reamer tau txhim kho los ntawm daim duab (a) mus rau daim duab (b), uas muaj zog hnav tsis kam rau sab nraub qaum, thiab txuas ntxiv lub neej kev pabcuam ntawm tag nrho cov reamer.

Cov txheej txheem ua haujlwm

Kauj ruam 1: Thaum drilling pib, lub kaw lus tsav lub casing khau thiab casing raj txav mus.
Kauj Ruam 2: Thaum ncav cuag lub hauv paus, nqa lub kaw lus thaiv, cov blocks yuav kaw, thim rov qab thiab rub tawm cov txheej txheem thaiv ntawm lub qhov.
Kauj Ruam 3: Yog tias lub qhov tau ncav cuag qhov xav tau qhov tob, ua kom tiav qhov drilling thiab txuas ntxiv lwm cov txheej txheem.
Kauj Ruam 4: Yog tias koj tseem xav xyaum qhov tob dua, siv cov qauv DTH me me los laum mus rau qhov xav tau qhov tob.

Daim ntawv thov

Dej zoo drilling
Eccentric system yog lub ntsiab drilling cuab yeej nyob rau hauv dej zoo tej yaam num, uas muaj peev xwm ua kom drilling lub qhov thiab tiv thaiv nws los ntawm caing tib lub sij hawm, thiab nws muaj peev xwm txo tau lub sij hawm drilling thaum drilling los ntawm overburden.

Micro piling
Nyob rau hauv cov av, av nplaum thiab xuab zeb pob zeb tsim, eccentric system yog qhov kev lag luam tshaj plaws thiab ceev tshaj plaws hauv kev tiv thaiv lub qhov los ntawm kev sib tsoo nrog cov kav dej ib ntus.

Anchoring
Eccentric system tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov phiaj xwm anchoring zoo dua thaum txhawb nqa txoj kab nqes.

Kev sib txuas nrog lwm cov khoom

	D		h	H	C		G
Qauv	Tawm Dia.Qhov siab (mm)	Sab hauv Dia.Qhov siab (mm)	Phab ntsa thickness (mm)	Qhia ntaus ntawv max.txoj kab uas hla (mm)	Reamed Dia. (mm)	Min.Sab hauv Dia.Casing khau (mm)	Max.Sab nraud Dia.ntawm Normal Bit (mm)	Hom Rauj	Qhov hnyav (KG)
SIB 84	108	94	7	92	117	86	84	COP34/DHD 3.5	11.0 Nws
ODEX 90	114	101	6.5	99	125	92	90	COP34/DHD 3.5	12.5 ib
SIB 98	127	109	9	107	138	100	98	COP44/DHD340/SD4/QL40	18
SIB 115	146	126	10	123.5 Nws	155	117	115	COP44/DHD340/SD4/QL40	22
SIB 136	168	148	10	146	180	138	136	COP54/DHD350/M50/SD5/QL50	38
SIB 146	178	158	10	156	192	147	145	COP54/DHD350/M50/SD5/QL50	42
SIB 152	183	163	10	161	196	153	151	COP54/DHD350/M50/SD5/QL50	48
SIB 152	183	163	10	161	196	153	151	COP64/DHD360/M60/SD6/QL60	56
SIB 160	194	174	10	172	206	162	160	COP64/DHD360/M60/SD6/QL60	62
SIB 185	219	199	10	196	234	187	185	COP64/DHD360/M60/SD6/QL60	84
TIAB SA 208	244	224	10	222	263	210	208	DHD380/COP84/SD8/QL80	122
SIB 240	273	253	10	251	305	241	240	DHD380/COP84/SD8/QL80	136
TIAB SA 280	325	300	12.5 ib	298	350	282	280	DHD 112	184