Gamma Perforator Logging Tool is a key control tool for perforation depth that integrates a high-precision gamma-ray detector. As a "depth scale" in perforation operations, it effectively resolves the problem of perforation position deviation caused by cable stretching and depth system errors, and is a core equipment for enhancing the completion efficiency and effect of oil and gas wells.
Depth control Principle- The Synergy of Gamma Logging & Casing Coupling Positioning
Adopting a unique "gamma-coupling" dual depth calibration mode:
Gamma Ray Logging– During the run-in-hole of the perforating gun string, the formation's natural gamma ray curve is continuously recorded.
Correlation with Reference Log – The recorded gamma ray curve is precisely correlated with the baseline gamma ray log from the previous open-hole or cased-hole survey.
Depth Correction – Characteristic gamma ray peaks (such as marker shale beds) are identified to calculate the precise depth offset of the current perforating gun string relative to the target zone.
Casing Collar Locator (CCL) Auxiliary Verification – The built-in Casing Collar Locator simultaneously records collar signals, providing a second depth reference system for dual verification and greatly enhancing positioning confidence.
Application Scenarios
Gamma Perforator Logging Tool is the key guarantee for the following perforation operation scenarios.
◆ Cased-Hole Perforating–Ensures the precise positioning of the reservoir within the casing, especially in intervals lacking distinct collar signatures.
◆ Thin-Bed & Multi-Zone Perforating– Provides unmatched depth-control precision for pay zones less than 2 meters thick or multi-zone sequences requiring precise interbed avoidance.
◆ Re-perforating or Remedial Perforating in Mature Wells – Enables precise positioning based on vintage electric logs, effectively unlocking remaining oil potential.
◆ Staged Perforating in Horizontal Wells – Delivers accurate depth reference for each fracture cluster stage in conjunction with pump-down plug or coiled tubing operations.
Technical Comparison & Decision Support
It provides objective and repeatable depth correction based on the physical characteristics of the stratum. It does not rely on mechanical measurements that may wear or slide, nor does it introduce additional radioactive substances to the well site. It is a safer, more accurate and data-traceable solution.
Our Commitment – Professional Support and Knowledge Sharing
The value of high-end Gamma Perforator Logging Tool lies not only in the product itself, but more importantly in its successful application.
What we provide
◆ Pre-sales Technical Consultation – Assisting clients in analyzing the quality of logging diagrams and evaluating operational feasibility.
◆ On-site Engineer Support – Experienced engineers provide on-site operational guidance and real-time data quality assessment.
◆ Data Interpretation Training – Sharing best practices for gamma ray curve correlation and depth correction.
◆ Complete Documentation Package – Each tool is delivered with calibration certificates, test reports, and detailed operation & maintenance manuals.
Welcome to contact us to learn more about our tools via e-mail info@a-oneoil.com
