High Speed Telemetry and

Horizontal Drilling with Dual Channel Drill Pipe

ByOla M. VestavikCTO Reelwell

Award winning technology2009 2010 2011 2012 2013

- drilling beyond boundaries

Award winning technology

PowerPipe™

- drilling beyond boundaries

Electric Power & Telemetry

Drilling and Completions

PowerPipe Features

1. Electric Power 2. Telemetry - no repeaters

Eliminate batteries Optimized drilling

Improve reliability Improve geo-steering

Reduce cost Avoid NPT for mud pulse failure

Downhole power Improve well control

Simplifies drilling automationAlong String Measurements

PowerPipe Commercial Status

• Currently under design and testing

• Drill string for testing in 2017

• Commercial available in 2018

Fatigue test and downhole tool demo

SPE - 184683

Horizontal Drilling with Dual Channel Drill Pipe

Vestavik O.M., Thorogood J., Reelwell;

Bourdelet, E., Total; Schmalhorst B., Roed J.P., Deutsche Erdoel AG

Development supported by:

Solving challenges

Challenge 3. No ECD 3. ECD

2. Buoyancy –reduce Torque & Drag

HeavyLight

2. Torque and drag 1. Cuttings -removed above BHA

1. Cuttings - stuck pipe

Solution

Solving the ECD challenge Horizontal drilling example

Managed Gradient Driling:

Gradient can be held constant whether pumping or not.

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Mea

sure

d d

epth

[m

]Pressure [bar]

Conventional pressure - flow Conventional pressure - no flow

Minimum pressure Maximum pressure

MGD - with or without flow

Closed loop circulation with return flow inside the Dual Drill String.

• MUD SUPPLY down Dual Drill String

• MUD RETURN through Inner Pipe of Dual Drill String

• PASSIVE FLUID in Well Annulus above BHA

TechnologyTOP DRIVE ADAPTER

Rotating Control Device

INNER PIPE VALVE Standard BHA

DUAL DRILL STRING

MUD SUPPLY

MUD RETURN

ANNULUS FLUID

FLOW CONTROL

UNIT

VIDEO ERD TRIAL MARCH 2016 – 3 MIN 40 SEC

ERD trial 2016 GOAL

1. Verify tools and procedures− New equipment and Aluminum DDS

− Operational procedures incl well control

− Heavy Over Light solution

2. Verify model and simulator− Tadpro – Drilling engineering software

− DrillSim – Simulator for training

9 7/8" hole 1507m MD, 451m TVD

10 ¾" casing shoe803m MD, 465m TVD

Well trajectory

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TVD

[m

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Pressure [Bar]

Well annulus

Return channel

Drill Pipe

Frac pressure

Stability pressure

Managed Gradient Drilling

Pressure in open hole can be held constant at all times, independent on circulation.

PRESSURE PROFILE VS TRUE VERTICAL DEPTH

Well annulus

Return channelwell annulus gradient for conventional MPD

Box end

Pin end

Steel handling area

57/8” x 7½” Aluminum Dual Drill Pipe

Top Drive Adapter

Flow Control Unit

Control Panel

Rotary Steerable BHA

Results summary

1. Efficient hole cleaning confirmed

2. All procedures and models verified

3. HOL fluid solution verified

4. Operational excellence achieved

Operation performed according to plan and budget

Sample of some larger cuttings

• Reduce loss and formation damage

• Reduce risk of pack-off and stuck pipe

• Increase casing setting depth

• Increase horizontal reach

Mud cap drilling with cuttings return

Managed Gradient Drilling

Outlook

- PowerPipe – commercially available next year

- Reelwell Drilling Method (Dual Channel Drill Pipe) :- Solution is commercially available- Working on various prospects- Develop for Liner/Casing drilling applications