Injury Prevention Oilfield

Published on December 2016 | Categories: Documents | Downloads: 33 | Comments: 0 | Views: 294
of 14
Download PDF   Embed   Report

Comments

Content


3/17/2014
1
W E L L S E R V I C E S
Injury Prevention on Rig In / Rig Out
Prepared by Wisnu Pratama Putra, FET, as required for preschool interview
Outline
Introduction
Lifting
Hammering
Walking and Working Surfaces
2
3/17/2014
2
Introduction
Rig up is the activities to move and assemble equipment needed
to connect the pump and the well. Vice versa, rig down is the
activities to disconnect and disassembled all equipment and move
it off from the rig.
3
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
In this presentation, rig up/down is specifically restricted to
cement job only.
Rigging up/down must always be done at the well site before the
job can start. During this process, we usually do repetitive
activities such as lifting, hammering, and walking on the
surfaces.
Introduction
This presentation is intended to address facts about
activities we did all the time during rigging up/down,
including risk for injuries possessed and the preventive
actions needed.
These activities are: lifting, hammering, and
walking/working on surfaces.
4
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
3/17/2014
3
LIFTING
5
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Lifting
One of the most frequent activities during rig up/down is
by hand lifting.
Proper way of lifting MUST be achieved to prevent any
treacherous event!
6
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
3/17/2014
4
Lifting
In cement job, we mainly use 2” treating iron equipment. The
following are those equipment’s weight :
7
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
2” x 2” Plug Valve : 42 kg
1” x 2” Plug Valve : 20 kg
2” style 50 Chiksan (2 way) : 25 kg
2” style 10 Chiksan (3 way) : 32 kg
2” Tee : 17 kg
2” Lateral : 25 kg
2” 8 ft Long Joint : 33 kg
2” 4 ft Long Joint : 20 kg
2” Loop or Sweep : 72 kg
Suction hose :
Discharge hose :
Mud line :
The Industry
recommends using
mechanical lifting
device or two man lift
for anything over 23
kg. Get help if needed
when lifting!
Lifting
Besides weight, some external factors must be considered when doing by hand lifting :
The distance between the object being lifted and the front of the body
The number of lifts performed repeatedly
The duration of lifting activity
The starting height from which the object is lifted
The finishing height to which the object is lifted
The twist the body did during the activity.
8
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
The greater magnitude of those factors,
the less weight that we can lift by
ourselves!
3/17/2014
5
Lifting
9
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
During rig up/down, there are some equipment that is too heavy to be
lifted by hand such as: cement head, cement head manifold, and casing
racks. Therefore we use some mechanical devices to lift these things.
Mechanical lifting devices that usually used during rig up/down:
Forklift
• Used to lift cement head and cement head manifold from one
point to the catwalk and back.
• Used to move the casing racks when cement crews have come
Rig Crane
• Mainly used for pulling up equipment from the catwalk to the rig
floor and back.
• Used to lift the stand pipe to the rig floor and back.
etc
Lifting
10
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Injuries risk during lifting:
Head – hand - inger Injuries
Caught between fingers
Smash fingers between objects
Falling objects
Back Injuries
Slipped disc
Happens when the soft part (core) of the disc bulges
through the circle of connective tissue. Main cause would
be hard physical activities especially lift heavy loads.
3/17/2014
6
Lifting
11
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Preventive actions :
• Do essentials of lifting
Examine the load – plan the route – position feet – squat down – grasp
firmly – lift with legs – turn with feet – keep load close
• Use stand back 5x5
Assess the risk and engage your mind before engage your hand
• Always lift according to industry recommendation.
It means when you are about to lift a 8 ft iron (33 kg), you will need two
people (33 / 23 = 1.43 ≈ 2) or use a mechanical device. Same goes for
2” x 2” plug valve (42 / 23 = 1.83 ≈ 2) where we’ll need two people to lift
it.
Lifting
12
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
• Use proper SIPP technique
Line of strength – safe working zone – smart grip, etc
• ALWAYS work on our green zone.
• NEVER stand/walk below the mechanically lifted equipment
Because it could fall anytime
• Warm up before the job
• Stop the job! O&I!
Mitigation actions:
• ALWAYS wear a proper PPE
Hard hats, safety glasses, coverall, impact-resistant gloves, safety
boots, etc.
3/17/2014
7
HAMMERING
13
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Hammering
14
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
We hammer all the time during rig up/down. Most common reasons
are :
• Connecting iron and hoses
• Open/close caps
• Open/close a pin lock
• Many more..
A hammer is basically a force amplifier that works by
converting mechanical work into kinetic energy and back.
We apply a force to swing a hammer
F
After swinging, hammer head will now
have both mass and velocity.
3/17/2014
8
Hammering
15
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
In hammering, power will be inversely proportional with accuracy.
The greater the power, the less the accuracy and vice versa. Usually
this is determined by our hand placement during swinging the hammer.
G
G
Hand placement farther to hammer center of
gravity (G): more power, less accuracy
Hand placement nearer to hammer center of
gravity (G): less power, more accuracy
Hammering
16
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Newton says: wherever there is action, there will be reaction acting
the same amount and opposite direction.
It means our body will receive the reaction created by the object we
hammered.
F
R
3/17/2014
9
Hammering
17
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Injuries Risk during Hammering
Hand + finger
Strike ourselves and others
Bad hand placement
Elbow
Torsional force received from reaction
Leg
Strike ourselves/others, hammering towards ourselves.
Hammering
18
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Preventive actions :
• Safe hand placement
• Move away when others are hammering
• Use SIPP body technique
Line of strength: always hammer align with our line of strength
Smart gripping: use strength and precision fingers correctly
• Never hammer further than necessary
Cause more reaction load subjecting our body.
• Use confinement at our joints.
Protect our elbow
• Warm up before work
• STOP the job! Use O&I!
3/17/2014
10
Hammering
19
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Mitigation actions :
• Always wear proper PPE (especially impact resistant gloves)
WALKING AND WORKING SURFACES
20
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
3/17/2014
11
Walking and Working Surface
21
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
During rig up/down, we actually move all the equipment from
one point to another. In that case, we need to walk back and
forth many times!
Regardless of while carrying load or not, we never want to
slip and fall at the well site!
Walking and Working Surface
22
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
General requirements from Schlumberger :
• All areas where employees step on should be kept in a clean, orderly,
and sanitary condition.
• All work areas should be kept as dry as possible
• All areas that require wet application should have properly
maintained drainage.
• Every floor, working place and passageway shall be kept free from
protruding sharp objects, sprinters, holes, hoses, or loose material.
Surfaces in well site might not be very comfortable :
Ice, snow, wood, slick rig floor, etc
3/17/2014
12
Walking and Working Surface
23
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
When we are walking, we apply a force in our leg with the same
direction where we want to walk.
The frictional force created between our footwear and the surface
prevents us from slipping!
Force we apply (F)
Frictional force (Fs)
Normal force (N)
Slip will occur
when F is
greater than
Fs
Walking and Working Surface
24
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Risk injuries when we are slipped:
• Fall down and damage our body
• Fall down when carrying equipment will be worse
• Slipped at rig floor and slide down to the cat walk
Preventive actions :
• Always scan the surface before stepping onto it
• Take the safest path, never choose a shorter yet more dangerous
path
• Walk slowly especially on the slick surface.
• ALWAYS wear ice cleats to increase friction coefficient
• Always maintain three points of contact whenever possible to
increase control and stability
• STOP the job! O&I!
3/17/2014
13
Walking and Working Surface
25
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
Mitigation actions :
• Always wear proper PPE at well site.
CONCLUSION
26
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
During rig up/down, there are many activities that can cause injuries.
Therefore it will be great for the team to always held a sort of pre-rig
up/down talk together before actually start rigging.
During this talk, team can discuss about:
• Plan for spotting the equipment.
• All potential hazards in the well site.
• Preventive actions to reduce the likelihood of an undesired
event.
• All the team member have proper and complete PPE ready
with them.
3/17/2014
14
Source outside SLB
http://myslippeddisc.blogspot.com/
Ergonomic Guidelines for Manual Material Handling,
California Department of Industrial Relation, 2007
http://en.wikipedia.org/wiki/Hammer
http://www.engineeringtoolbox.com/friction-coefficients-
d_778.html
http://gmrelectric.com/Portals/0/new%20big%20red.JPG
http://www.norwellengineering.com/home/default.asp?pagei
d=25
27
Injury Prevention on Rig In / Rig Out – Wisnu P - 2014
28
Feedbacks?

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close