T1-178.NGT.M2 and T2-178.NGT.M2

The Product Catalogue (metric)

The Product Catalogue (inch)

28 PDM's

performance in the Kazakhstan Republic

Average overhaul
period is 281 hours

News

03.04.2019

The Conference “Import Substitution”

The company took part in the 3rd conference “Import Substitution” organized by PJSC “Variyoganneftegaz”. The report of our representative at one of the conference sections “Drilling and completion of wells” was extremely interesting for the representatives of PJSC “Variyoganneftegaz” and OJSC “Slavneft’ – Megionneftegaz”. We achieved mutual understanding with the general customers on the next steps in the introduction of innovative products developed by our specialists.

T1-178.NGT.M2 and T2-178.NGT.M2

Description

High hydrodynamic alternating loads are created while tripping in a well using 212,7-215,9 mm dia. bits and 195 mm dia. downhole motor due to small annular distance between the well walls and the downhole motor. This leads to reduction of the well wall stability, layer breakage, decrease of well productivity. The turbodrills T1-178.NGT.M2 and T2-178.NGT.M2 of 178 mm OD are offered to increase the annular distance and, therefore, to improve conditions of well drilling with 212,7-215,9 mm bits. The turbodrill is available for drilling with impregnated and PDC bits.

The turbodrill incorporates one (T1-178.NGT.M2) or two (T2-178.NGT.M2) turbine sections and bearing section. High performance turbine made out of stainless steel by precision casting method is used in the turbine sections. The turbine efficiency constitutes 68-70% at max. power. The turbodrill is completed with the bearing section of enhanced operation life exceeding 400 hrs. The turbodrill bearing section operates in mud and has axial sliding bearing, the operating surfaces made of synthetic diamond. This allows reaching high power characteristics and increased overhaul life.

Technical and power specifications

Turbodrill specification

Code of turbodrill	T1-178.NGT.M2	T2-178.NGT.M2
OD of threaded connections, mm	178
Diameters of bits used, mm	212,7-215,9
Turbodrill length, mm	9 332	13 004
Length of top turbine section, mm	-	3 672
Length of bottom turbine section, mm	7 332	7 332
Length of bearing section, mm	2 000	2 000
Length of bearing section, mm	З-147
Connecting thread to bit	З-117
Max. density of mud, g/cm³	1,9
Max. axial load, kN	150
Weight, kg	2 100	2 500
Max. temperature in well, °C	250

Turbodrill power characteristic

Quantity of turbine sections, pc.	1	2
Mud flow rate, l/sec	25-28	22-25q
Mud density, g/cm³	1,0	1,0
Stall torque, N*m	2254-2827	2443-3155
Speed of rotation at operating condition, min^-1	926-1037	815-926
Pressure drop, MPa	6,4-8,0	6,9-8,9
Max. power, kW	100-140	95-140

Outline drawing

Comparison of specifications

Параметр
Technical specification:
Dia. of bits used, mm
Length, mm
Connecting thread	to drill pipes
	to bit
Rage of bend angles, deg
Weight, kg
Power specification:
Quantity of turbine sections, pcs	Turbine
	Bearing section
Quantity of turbine stages in turbodrill, psc
Mud flow rate, l/sec
Speed of rotation at operating condition, min-1
Stall torque, N*m
Pressure drop, MPa
Max. power, kW

T1-178.NGT.M1	T2-178.NGT.M1	T1-178.NGT.M2	T2-178.NGT.M2	TBS1-178.NGT.M1	TBS1-178.NGT.M2

212,7-215,9	212,7-215,9	212,7-215,9	212,7-215,9	212,7-215,9	212,7-215,9
9 332	13 004	9 332	13 004	10 964	10 964
З-147	З-147	З-147	З-147	З-147	З-147
З-117	З-117	З-117	З-117	З-117	З-117
-	-	-	-	-	-
2 100	2 500	2100	2 500	2100	2 100

1	2	1	2	1	1
1	1	1	1	1	1
170	240	150	210	170	150
32-36	25-32	25-28	22-25	32-36	25-28
2843-3599	2450-4014	2254-2827	2443-3155	2843-3599	2254-2827
827-931	646-827	926-1037	815-926	827-931	926-1037
5,8-7,4	5,0-8,2	6,4-8,0	6,9-8,9	5,8-7,4	6,4-8,0
107-152	72-151	100-140	95-140	107-152	100-140

Note: turbodrill power characteristics are given at mud density of 1.0 g/cm³

Download

Description and specification of T1-178.NGT.M2 and T2-178.NGT.M2 (0.1 MB, pdf)