Completions lesson outline
This presentation is the property of its rightful owner.
Sponsored Links
1 / 16

Completions Lesson Outline PowerPoint PPT Presentation


  • 88 Views
  • Uploaded on
  • Presentation posted in: General

Completions Lesson Outline. Review Learning Objectives Present Completions materials Discuss Completions hazards Present a Marcellus Shale video Identify more hazards in video Review questions in the lesson Wrap-up discussion-observations. Site Selection & Preparation. Well

Download Presentation

Completions Lesson Outline

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Completions lesson outline

Completions Lesson Outline

Review Learning Objectives

Present Completions materials

Discuss Completions hazards

Present a Marcellus Shale video

Identify more hazards in video

Review questions in the lesson

Wrap-up discussion-observations

Site Selection

& Preparation

Well

Construction

Completions

Production


Review learning objectives

Review Learning Objectives

State how to identify each of the four operations

that can be underway during the well completion

process, either:

Perforating

Hydraulic Fracturing

Well Testing – Flowback

Rigging Down

List the hazards associated with the above processes

Upon completing the Completions lesson, participants will be able to:


Completing the well

Completing the Well

The most complex Completions process is called stimulation, with two major stages:

Perforating

Hydraulic Fracturing

“Fracing”, shown in the picture, is the most congested wellsite operation

Site Selection

& Preparation

Well

Construction

Completions

Production

Source: Talisman


Step 1 perforating

Step 1: Perforating

First stimulation step in Completions is perforating…

  • Perforating guns use explosives

  • A high explosive jet gun is lowered into the well

  • Shaped, powerful charges are used to get through casing & cement in the well – see the green arrow

  • Explosives require special handling

Source: EKT Interactive, Inc.


Perforating hazards

Perforating Hazards

First Responder hazards include:

Explosive detonation on the surface

Slip, trip and fall hazards due to abundance of equipment and manifolds in place

Discussion of hazards associated with perforating…

Perforating is a very controlled process with detailed procedures for perforating crews to manage the explosives. During perforation, the wellsite will be cordoned off and radio and cell phone communications will be banned to eliminate any stray voltage reaching the explosives.

Big Rule: Treat Completions incidents as HazMat until you find a reason not to


Step 2 hydraulic fracturing

Step 2: Hydraulic Fracturing

Second stimulation step in Completions is hydraulic fracturing…

The Frac Control Van (green arrow below) is First Responder point of contact …

Source: Talisman


Hydraulic fracturing cont d

Hydraulic Fracturing – cont’d

Equipment required includes:

Pump trucks

Frac tanks

Sand tanks-storage

Water storage

The “slickwater” slurry mixture has:

Sand

Water

Chemicals

Radioactive tracers may be onsite

Equipment, sand, water, chemicals & radioactive tracers present…

Pump

Trucks

Frac

Tanks

Sand Trucks

Water Storage

Sand Storage


Onsite frac spread

Onsite Frac Spread

How many potential hazards can you spot?

  • During fracing:

  • Pressures can be up to 9,500 psi

  • Hammer unions (couplings) and heavy walled pipe are used

  • Frac fluid has sand, water & small quantities of chemicals

Source: Range Resources


Hydraulic fracturing hazards

Hydraulic Fracturing Hazards

First Responder hazards include:

Medical emergencies (heart attacks, broken limbs, etc).

Slips, trips, falls

Piping operating under high pressure

Personnel struck by piping

Crushing type injuries

Fuels and other chemicals on the wellsite

Discussion of hazards associated with hydraulic fracturing…

The service company employees performing hydraulic fracturing are highly trained in the management, set-up and operation of the processes required to perform this function. They can be a great asset to first responders should an emergency arise.


Step 3 flowback and flares

Step 3: Flowback and Flares

The third Completions step is “flowback” to clean the wellbore…

  • Flaring may be a result of “flowback” and might not always be a sign of trouble

  • Gas produced is safely flared to control dispersion

  • Flaring done under tight Operator supervision

  • Flowback may be conducted for days

  • The Operator should notify 9-1-1 dispatch when flaring anticipated

Flare Stack

Source: Range Resources


Ready for production

Ready for Production

Typical wellhead – Christmas tree configuration…

  • After well cleans up it is ready for production equipment to be installed

  • A “Christmas tree” set of valves is installed at surface

  • The cellar is back filled

  • The well may not go into full production until a gathering line is installed and connected to a compressor station

Source: Talisman


Step 4 rigging down secure the wellsite

Step 4: Rigging Down & Secure the Wellsite

Final Completions step is “rigging down” and securing the wellsite…

  • Rigging down the reverse of rigging up – with similar hazards

  • Pad congestion can cause hazards

  • Once completed the well has high pressure surface equipment

  • Final step is to secure the wellsite

Don’t back into the wellheads

Source: Talisman


Rigging down and move out hazards

Rigging Down and Move-out Hazards

First Responder hazards include:

Falling objects or pipe during rig-down

Wellhead struck by a vehicle during rig-down and move-out

Fuel and other chemicals that may still be on the wellsite

Discussion of hazards associated with “rigging down”…

During rigging down, Operators watch for congestion and use spotters when moving equipment to avoid striking the wellhead or other production equipment.

Big Rule: Use spotters when moving all First Responder equipment


Introduce the video

Introduce the Video

Presented with the compliments of the Marcellus Shale Coalition

Look for any First Responder hazards as you watch the video

Make a note of the hazards or your questions for later discussion

Instructor can stop the video if needed (by clicking on video presentation)

After Video:

1. Any questions?

2. Review hazards identified by the

class during the video

A six minute summary of Marcellus gas well operations...

Video will play on next mouse click


Exercise questions

Exercise – Questions

On the handout sheet, please answer the following questions…

1) Perforating is conducted after the well has been fractured. [True or False]

2) What other liquids may a well produce, in addition to natural gas? (Check all that apply)

□ Condensate □ Glycol □ Gasoline □ Produced Water

3) Radioactive tracers may be injected into a well with the water/sand slurry.

[True or False]

4) Check the hazards which are more likely to be encountered during the well completion phase.

□ High pressure □ Slips/trips/falls □ Explosions □ Crushing injury

5) Sort in logical order by placing the numbers 1- 4 in the blanks provided:

___ Flowback ___ Perforating ___ Fracturing ___ Production

6) Produced water from wells can be discharged on the ground or into a stream.

[True or False]


Exercise answers in color

Exercise – Answers in Color

Your handout sheet should have the following answers…

1) Perforating is conducted after the well has been fractured. [ False]

2) What other liquids may a well produce, in addition to natural gas? (Check all that apply)

□ Condensate □ Glycol □ Gasoline □ Produced Water

3) Radioactive tracers may be injected into a well with the water/sand slurry. [True]

4) Check the hazards which are more likely to be encountered during the well completion phase. All are correct:

□ High pressure □ Slips/trips/falls □ Explosions □ Crushing injury

5) Sort in logical order by placing the numbers 1- 4 in the blanks provided:

3 Flowback 1 Perforating 2 Fracturing 4 Production

6) Produced water from wells can be discharged on the ground or into a stream. [False]


  • Login