Name: China Customized Logging While Drilling Manufacturers Suppliers - Factory Direct Price - ZITN Tech
Brand: ZITN
SKU: 286418367

Description

ZITN ZTLWD-G175 High-Temperature Logging While Drilling (LWD) System is an advanced formation evaluation solution engineered for the most challenging environments, including ultra-deep and high-pressure, high-temperature (HPHT) wells. By integrating an Electromagnetic Wave Resistivity tool and an Azimuthal Gamma Ray tool, it delivers real-time, accurate formation data while operating reliably at temperatures up to 175°C.

ZITN ZTLWD-G175 High-Temperature Logging While Drilling (LWD) System is a critical asset for maximizing success in complex reservoir exploration.

Product Application

Real-Time Formation Evaluation

Provides immediate resistivity and gamma ray data to identify lithology and hydrocarbon-bearing zones while drilling.

Accurate Geosteering

Utilizes sector-based gamma ray measurements to precisely detect formation boundaries and guide the drill bit within the optimal reservoir section.

HPHT & Ultra-Deep Well Operations

Its proven 175°C temperature rating ensures consistent performance and data reliability in the most demanding downhole conditions.

Drilling Risk Mitigation

Enables informed decision-making to optimize drilling parameters and wellbore placement, enhancing efficiency and safety.

Product Features

Extreme High-Temperature Endurance: Certified for reliable operation at 175°C, with rigorously validated performance under HPHT conditions.
High-Precision Resistivity Measurement: Utilizes a quad-transmitter, dual-receiver array and dual-frequency (400kHz/2MHz) excitation, supported by multi-stage dynamic compensation to eliminate borehole, invasion, and thermal drift effects.
Accurate Azimuthal Gamma Detection: Features a unique tungsten alloy window that shields against stray radiation, ensuring precise directional measurement of formation gamma rays.
Fully Integrated Design: Combines resistivity and gamma ray sensors in a compact tool, simplifying BHA configuration while delivering comprehensive formation evaluation.
High-Degree Integration: Simplified design with minimal PCB count and a robust structural skeleton for enhanced mechanical reliability.
Modular Maintainability: Employs micro-rectangular connectors and a modular architecture to significantly reduce maintenance downtime.
Dynamic Gain Adjustment: The amplifier circuit automatically adapts gain settings to maintain a high signal-to-noise ratio across varying formation conditions.

Specification Parameters

Table 1 General Technical Parameters

Parameters	Standard Values
Tool Size	4.75in
Instrument Outer Diameter	127mm
Borehole Size	149~172mm
Flow Ranges	9.5～22.1 L/s
Length	3900mm
Connection	NC38
Maximum Dogleg Severity	Orientation: 30° 30m Rotation: 12° 30m
Supply Voltage	24~48V
Communication Interface	RS485
Connector	13-Pin Aviation Socket

Table 2 Environmental Adaptability

Parameters	Standard Values
Operating Temperature	-40~+175℃
Survival Temperature	-40~+180℃
Maximum Pressure	20000psi
Sand Content	Not Higher Than 1.5%
LCM Tolerance	Medium-fine particle plugging agent <100Kgm³
Vibration	20G RMS ,50-1000Hz
Shock	1000G, 0.5ms, half-sine

Table 3 Resistivity Measurement Accuracy

Frequency	Measurement Method	Measurement Range	Measurement Accuracy
400KHz	Phase Resistivity	0.1～500Ω•m	±2%(0.1～25Ω•m);±1 mS/m(>25Ω•m)
400KHz	Amplitude Resistivity	0.1～150Ω•m	±5%(0.1～10Ω•m);±2 mS/m(>10Ω•m)
2MHz	Phase Resistivity	0.1～500Ω•m	±2%(0.1～50•m);±0.3 mS/m(>50Ω•m)
2MHz	Amplitude Resistivity	0.1～100Ω•m	±2%(0.1～25Ω•m);±1 mS/m(>25Ω•m)

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Table 4 Detection Depth and Vertical Resolution

Flushing zone resistivity Rxo = 1Ω·m, undisturbed formation resistivity Rt = 10Ω·m
Amplitude Measurement	Parameters	Long Antenna Deep Detection RLLA	Long Antenna Shallow Detection RLSA	Short Antenna Deep Detection RHLA	Short Antenna Shallow Detection RHSA
	Detection Depth	45in	37in	33in	27in
	Detection Depth	114.3cm	93.98cm	83.82cm	68.58cm
	Vertical Resolution	12in	12in	10in	10in
	Vertical Resolution	30.48cm	30.48cm	25.4cm	25.4cm
Phase Measurement	Parameters	Long antenna deep detection RLLP	Long Antenna Shallow Detection RLSP	Short Antenna Deep Detection RHLP	Short Antenna Shallow Detection RHSP
	Detection Depth	29in	22in	23in	18in
	Detection Depth	73.66cm	55.88cm	58.42cm	45.72cm
	Vertical Resolution	8in	8in	6in	6in
	Vertical Resolution	20.32cm	20.32cm	15.24cm	15.24cm
Flushing zone resistivity Rxo = 10Ω·m, undisturbed formation resistivity Rt = 100Ω·m
Amplitude Measurement	Parameters	Long Antenna Deep Detection RLLA	Long Antenna Shallow Detection RLSA	Short Antenna Deep Detection RHLA	Short Antenna Shallow Detection RHSA
	Detection Depth	78in	72in	56in	48in
	Detection Depth	198.12cm	182.88cm	142.24cm	121.92cm
	Vertical Resolution	12in	12in	10in	10in
	Vertical Resolution	30.48cm	30.48cm	25.4cm	25.4cm
Phase Measurement	Parameters	Long antenna deep detection RLLP	Long Antenna Shallow Detection RLSP	Short Antenna Deep Detection RHLP	Short Antenna Shallow Detection RHSP
	Detection Depth	44in	32in	36in	26in
	Detection Depth	111.76cm	81.28cm	91.44cm	66.04cm
	Vertical Resolution	8in	8in	6in	6in
	Vertical Resolution	20.32cm	20.32cm	15.24cm	15.24cm

About ZITN LWD

ZITN maintains a steadfast commitment to R&D in its ultra-high-temperature product line. Through systematic advancements - from chips and modules to sensors, complete circuits, and fully integrated tool systems - we have steadily overcome numerous extreme-temperature technical challenges.

Characteristic Process: MCM Thick-Film Hybrid Integration Process

The high-temperature MCM (Multichip Module) thick-film hybrid integrated circuit fundamentally addresses three major quality risks encountered by measurement-while-drilling (MWD) instruments during operation from the perspectives of implementation principle and physical structure: high-temperature failure of electronic components, electrical connection failure, and insufficient shock resistance of circuits.

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