Selecting the right downhole logging tool is critical for obtaining reliable measurements and maintaining efficient wireline operations. For cased hole applications, a 1-11/16" Gamma Ray Temperature CCL Tool can combine gamma ray, temperature, and casing collar locator measurements in one compact tool assembly. This configuration can support depth correlation, casing collar identification, formation evaluation, and wellbore temperature monitoring.
However, product dimensions alone are not enough when evaluating a tool for an oilfield project. Engineers and technical procurement teams should request detailed specifications covering measurement performance, mechanical dimensions, environmental ratings, electrical interfaces, and compatibility with the existing logging system.
Tool Outside Diameter and Mechanical Dimensions
The first specification to confirm is the tool's outside diameter. A 1-11/16" tool is approximately 43 mm in diameter, making it suitable for applications where a relatively compact cased hole logging configuration is required.
In addition to OD, buyers should request:
◆ Overall tool length
◆ Tool weight
◆ Connection dimensions
◆ Thread type
◆ Make-up specifications
◆ Minimum operating clearance
◆ Connector configuration
These details help determine whether the tool can be mechanically integrated into the planned wireline tool string.
For international procurement, it is also useful to request a dimensional drawing rather than relying only on a product description.
Our 1-11/16" Gamma Ray Temperature CCL Tool
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Gamma Ray Measurement Specifications
Gamma ray measurement is one of the key functions of this type of tool. It can provide information useful for formation correlation and depth matching with existing well data.
When requesting specifications, ask the manufacturer for relevant gamma ray parameters such as:
◆ Gamma ray measurement range
◆ Detector type
◆ Sensitivity
◆ Resolution
◆ Sampling or response characteristics
◆ Measurement accuracy, where applicable
◆ Recommended logging speed
The appropriate gamma ray configuration depends on the intended application, formation characteristics, logging environment, and data requirements.
Temperature Measurement Specifications
The temperature section provides valuable information about downhole thermal conditions. Temperature measurements can support well diagnostics, production-related investigations, and identification of temperature anomalies.
Procurement teams should request:
◆ Temperature measurement range
◆ Temperature accuracy
◆ Temperature resolution
◆ Sensor type
◆ Response time
◆ Maximum operating temperature
It is particularly important to distinguish between the measurement range and the maximum environmental temperature rating. These specifications may not always be identical and should be clearly confirmed with the supplier.
Casing Collar Locator Specifications
The CCL function is essential for depth correlation in many cased hole logging and perforating applications. A casing collar locator detects magnetic changes associated with casing collars and generates a corresponding signal.
Before purchasing, ask for information about:
◆ CCL operating principle
◆ Detection capability
◆ CCL response characteristics
◆ Applicable casing sizes
◆ Logging speed recommendations
◆ Signal output
◆ Compatibility with the surface acquisition system
For operations requiring accurate depth correlation, CCL performance should be evaluated together with the complete logging system rather than as an isolated specification.
Pressure and Temperature Ratings
Downhole tools must operate reliably under the environmental conditions expected in the target well.
Important specifications include:
◆ Maximum operating pressure
◆ Maximum operating temperature
◆ Recommended continuous operating temperature
◆ Short-duration temperature rating, if applicable
◆ Pressure test requirements
◆ Housing material
The supplier should clearly state whether the environmental ratings apply to the complete assembled tool or individual components.
Electrical and Interface Specifications
Compatibility is another important consideration when purchasing a Gamma Ray Temperature CCL Tool.
Request detailed information about:
◆ Operating voltage
◆ Power consumption
◆ Signal output
◆ Connector type
◆ Pin configuration
◆ Communication protocol, if applicable
◆ Surface panel compatibility
◆ Logging acquisition system compatibility
A technically suitable tool may still create integration problems if its electrical interface does not match the customer's existing wireline logging platform.
Tool String and Logging Compatibility
Before placing an order, provide the supplier with information about the existing logging system. This may include the cable configuration, telemetry system, surface acquisition equipment, tool string arrangement, and other downhole modules.
Ask whether the 1-11/16" Gamma Ray Temperature CCL Tool can be integrated with the required:
◆ Wireline logging system
◆ Cased hole logging platform
◆ Memory logging system
◆ Depth correlation system
◆ Surface data acquisition unit
◆ Compatible downhole adapters and connectors
A supplier with experience in cased hole logging applications should be able to provide compatibility information and integration recommendations.
Calibration and Quality Documentation
For professional oilfield applications, procurement should also consider documentation and quality control.
Depending on project requirements, request:
◆ Factory test reports
◆ Pressure test records
◆ Inspection reports
◆ Technical datasheets
◆ User manuals
◆ Wiring diagrams
◆ Recommended maintenance procedures
Clear documentation can simplify equipment acceptance, field preparation, and future maintenance.
Customization and OEM Requirements
Different logging companies may use different tool strings, connectors, telemetry systems, and surface equipment. Therefore, customization may be important for some projects.
Ask the supplier whether they can provide:
◆ Customized connectors
◆ Different thread configurations
◆ Tool string adapters
◆ Customized electrical interfaces
◆ Special dimensions
Project-specific technical configurations
When requesting a quotation, providing complete technical requirements helps the manufacturer determine the appropriate configuration and avoid unnecessary revisions.
What Should Be Included in Your RFQ?
A professional RFQ for a 1-11/16" Gamma Ray Temperature CCL Tool should include as much application information as possible.
For example, specify:
◆ Tool OD requirement
◆ Target well conditions
◆ Expected pressure and temperature
◆ Temperature measurement range
◆ CCL application
◆ Connector requirements
◆ Quantity
◆ Required documentation
◆ Delivery requirements
◆ Customization requirements
The supplier can then provide a more accurate technical proposal and commercial quotation.
Conclusion
Purchasing a 1-11/16" Gamma Ray Temperature CCL Tool requires more than checking the tool diameter and price. Engineers and procurement teams should evaluate the complete technical configuration, including gamma ray performance, temperature specifications, CCL characteristics, pressure and temperature ratings, electrical interfaces, mechanical dimensions, compatibility, calibration, and documentation.
A well-defined specification request helps buyers compare different suppliers more effectively and reduces the risk of selecting a tool that cannot be properly integrated into the existing cased hole logging system.
For oilfield service companies, wireline contractors, and technical procurement teams, working with a manufacturer that can provide detailed specifications, customization, compatibility support, and reliable technical documentation can make the purchasing process more efficient.
Looking for a 1-11/16" Gamma Ray Temperature CCL Tool for your cased hole logging project? Contact our technical team info@a-oneoil.com with your tool-string requirements, well conditions, and interface specifications for a detailed quotation and technical recommendation.







