Horizontal Directional Drilling : What is it & How is it performed

1
A Complete Guide To
Horizontal Directional Drilling
2
What is HDD?
Horizontal Directional Drilling is a system of
drilling, installing or replacing the new pipes
under the ground without digging the full ground.
It is also called as Directional Drilling,
Trench-less Method or HDD.
3
Introduction

• This type of drilling is done by the drilling
  rigs.
• It is time saving and doesnt disturb the land.
• It is used in many projects of pipe fixing, such
  as the electric, water, gas pipes,
  telecommunication pipes, sewer pipes and many
  more.
• It is environment friendly and doesnt cause any
  damage or destruction to the landscape.
• The work is completed by using different
  equipments and workers without jamming the
  traffic or crowding the place.

4
A Drilling Rig
5
Method of Horizontal Directional Drilling

• In this method the group of workers is very
  small.
• The working equipment includes only a drilling
  machine and the tracking operator. These are
  connected to each other electrically.
• The drill fluid helps in starting the drilling of
  the hole in the ground.
• The drill fluid keeps checking the ground for the
  type of the land and the stability of the hole.

6
(No Transcript)
7

• The drill always moves in the arc shapes and
  exits at the end of the arc from the ground area.
  
• Then the reamer is entered which is according to
  the size of the pipes and makes a clear path for
  the pipes.
• The pipes are entered and fixed and they are
  heated to connect to each other.

8
Tools Equipments Used in HDD

• MWD (Measuring while drilling) sensors
• Mud Motors
• BHA configuration
• Drill bits
• Whip stocks

9
Pros of HDD

• Doesnt disturb the area around the project
• Saves money and cost of excavation
• Very safe technique
• Work is not delayed due to improper weather
  conditions
• Doesn't disrupt traffic
• The work done is neat and faster
• Saves a lot of time
• Flexible method and can be installed in any area

10
Cons of HDD

• HDD technique has high rate of collapsing
• It can be costly for certain projects
• Work limitation issues due to cobbles and stones
  scattered on the ground

11
We-Bore-It has been providing directional boring
trenching services to the Cable,
Telecommunications and Wireless industry since
1990. The company was founded with the idea of
uniting multiple contracting companies under one
umbrella company. After years in the industry,
and valuable feedback from customers and partners
it became clear that they wanted us to expand our
operations from that of local to that of a
regional or even nationwide operator. Our goal is
to offer our residential and commercial customers
a service that focuses on all their underground
construction needs.
12
755 Ridgeview Dr 200, McHenry, IL 60050, United
States 800-864-8857 info_at_we-bore-it.com