Borehole Camera Systems | Downhole Inspection & Casing Repair Solutions

I. Introduction to Borehole Camera Technology

The Borehole Camera System (Downhole TV) represents a cutting-edge advancement in well logging, complementing traditional electromagnetic, physical, and acoustic methods. Utilizing optical imaging technology, the system integrates a high-resolution camera at the probe’s front end, capturing real-time visuals of casing interiors and wellbore conditions under visible light illumination.

The captured images are processed via electronic circuitry, converted into frequency-modulated pulse signals, and transmitted through single-core or multi-core cables to surface receivers. These signals are then decoded into high-definition video, enabling real-time downhole monitoring and precise well integrity assessments. This direct visual feedback enhances decision-making for well remediation, maintenance, and incident analysis.

II. Working Principle

The Downhole TV camera operates by illuminating the well casing and borehole, capturing high-resolution images or video. The system’s signal processing unit amplifies and converts the footage into digital pulse signals, which are transmitted via cable to the surface. After decoding, the system reproduces real-time downhole visuals, which can be:

Recorded (via USB export)

Printed for documentation

Analyzed for defects or anomalies

III. System Components

The Borehole Imaging System comprises six core components:

Main Control Unit – Manages data processing and transmission

High-Resolution Camera Head – Captures downhole visuals

Winch System – Facilitates smooth probe deployment

Kevlar-Reinforced Cable – Ensures durability and signal integrity

Cable Guide Pulley (Downhole Sheave) – Maintains cable alignment

Precision Depth Meter (with Millimeter Counter) – Provides accurate depth measurements

Key Features:

Real-Time HD Video Transmission – Clear, high-definition imaging

Automatic Recording & Video Observation – Seamless data logging

Adjustable Lighting System – Optimized for varying downhole conditions

Long-Lasting Battery Power – Extended operation in remote locations

Waterproof & Submersible Camera – Reliable performance in wet or dry boreholes

Superior Image Clarity – Delivers true-color visuals for precise well diagnostics

IV. Applications

Borehole camera systems are indispensable across multiple industries, including:

✔ Oil & Gas / Geothermal Wells – Casing inspection, perforation analysis, sand control

✔ Geology & Mineral Exploration – Fracture mapping, core sample verification

✔ Hydrogeology & Environmental Studies – Groundwater monitoring, pollution assessment

✔ Civil Engineering & Pile Foundations – Structural integrity checks, defect detection

✔ Urban Infrastructure – Underground pipeline inspection, leak detection

✔ Underwater Operations – Rescue missions, aquaculture monitoring, subsea inspections

Real-World Case Study

Problem: Saltwater is leaking into the well. We need to fix it—but without a camera, we can’t pinpoint the exact depth or damage.

Solution: Our borehole camera V13-BCSA provided real-time HD video, clearly revealing the saltwater intrusion at 53 meters (see compressed sample above). The visual data allowed the team to:

Accurately locate the leak’s depth and severity

Plan targeted repairs, reducing downtime

Avoid costly trial-and-error interventions

Contact us for the full-resolution video and technical report.

Keyword:

#Borehole Camera System#Downhole Camera Inspection#Well Inspection Camera

#Downhole TV Technology#Casing Integrity Assessment