Access bypassed reserves using our COLT System for 3-5/8" to 4-3/4" hole sizes

With over 70% of the world’s production coming from mature fields and with the average recovery factor of oil and gas being 35% and 70% respectively, it is not surprising that operators are looking at creative ways to access bypassed reserves and lengthen the life of their declining wells. Coiled Tubing Drilling provides the technique to directionally target these untapped sweet spots within the reservoir. By re-entering a well, you avoid the large infrastructure costs and lead times associated with grassroots drilling. 

 

Our COLT system has been designed specifically for re-entry and thru-tubing drilling applications for hole sizes between 3-5/8" and 4-3/4" that can be used with single and multi-phase drilling fluid. The Bottom Hole Assembly is powered electrically on heptacable and is magnetically steered. It also has the unique capability of gyro orientation for casing exits avoiding the need to drill blindly near casing.

 

COLT is the shortest CTD BHA on the market providing safer and easier deployment and increased Weight-On-Bit for maximum lateral reach. It is designed to withstand the harsh environmental conditions that occur when drilling in underbalanced conditions and is equipped with a complete suite of sensors for instant feedback of downhole drilling conditions. This real-time feedback combined with an electric orienter that rotates continuously, gives precise control when navigating complex reservoirs and allowing build and straight sections to be drilled in the same run. By drilling a straight hole we can drill further with more weight-on-bit.

 

The COLT family of tools includes the supporting tools required to orient and set whipstocks and then monitor the performance of the milling fun for cutting the casing window.

FEATURES & BENEFITS

Enables easy deployment above the master valve and sensor positions are close to the bit for more accurate navigation. This has significant safety and operational benefits.

WORLD'S SHORTEST CTD BHA

Continuous CW or CCW rotation of the orienter allows the build and straight section to be drilled in the same run. This feature also prevents sinusoidal well paths from ever being drilled which increases your WOB and consequently your lateral reach. No other BHA on the market has this feature/capability.

CONTINUOUS ORIENTER ROTATION

Allows real-time feedback of downhole conditions that are essential for efficient drilling with coiled tubing where small, fast changing parameters have a significant effect on drilling performance. The wireline telemetry also means that signals can be transmitted in multi-phase fluid conditions

HIGH SPEED DATA TRANSMISSION VIA E-LINE

OPTIONAL INTEGRATED ORIENTATION GYRO

Allows the BHA to be assembled within the BOP when operating with a live well where there is insufficient height above the master valve.

LIVE WELL DEPLOYMENT

Helps to exit the casing window without increasing tool length. No other BHA on the market can do this.

CIRCULATION VALVE

Pressure, temperature, WOB, TOB, vibration, gamma ray, inclination, azimuth, tool face, gyro, CCL.

COMPREHENSIVE RANGE OF SENSORS

The Circulation Valve can be used in the drilling BHA or to hydraulically set whipstocks and packers. The circulation valve allows circulation above the motor if open and through the motor if closed. It can be functioned multiple times during a run through an electrical command sent from surface. It ensures good hole cleaning and mitigates stuck pipe risks. 

7-Conductor Wireline

Tubing End Connector

Cablehead 

with rope socket & dual check valves 

Electric Emergency Disconnect

Electric Rotating Orientor

Sensor Assembly

with  WOB, Torque, Int & Ext Press/Temp, Gamma, Vibration Sensors, DMU Maganetic Steering and Optional Gyro for Kick-off in Casing

Adjustable Bent Sub PDM

PDC Bit

Access bypassed reserves using our COLT System

TOP LEVEL SPECIFICATION

Specification

Value

Outside Diameter

Inside Diameter

0.7" (18.0mm)

3.192"

Max' Operating Temperature

Max' Operating Pressure

10,000 psi (690bar)

302°F (150°C)

Max' Build Rate *

50°/ 100ft (50°/30m)

* Pass through capability. Build rate capability is dependent on motor/bit combination.

For full specifications, you can download the datasheet. If you would like to know more about our COLT system, or if you have a project that you think could benefit from our service, please get in touch.

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