Suspension Flashcards
What do we do if we want to reactivate a suspended well?
I
I
R
R
- Inspect, service and pressure test the wellhead
- Inspect and service control systems and lease facilities
- Retain all records
- Report reactivation of the well to the AER DDS system
What is an inactive critical sour gas well?
A well that has not reported any type of volumetric activity for 6 consecutive months.
- How do we define inactive wells?
Where production, injection, disposal or workover operations have ceased.
How do we define inactive wells?
Where
- production,
- injection,
- disposal or
- workover
operations have ceased.
Where do suspensions get reported?
AER-DDS System
How many days does the licensee have to report the suspension?
Twelve Months of non-production then ? days to get it registered with the AER via DDS
60
What are the three well risk categories for inactive wells?
- Low risk
-
-
Medium risk
High risk
No matter the risk level of the inactive well, what must the licensee ensure when it comes to surface requirements?
- Take reasonable steps to c and c spill or release in accordance with OGCR Sections 8.050(1)
- Have appropriate s
- Have 24 hours…
- contain and clean up
- signage
- emergency phone number posted
What are the wellhead requirements for a suspended well?
- No ?
- Regular
- -All outlets except surface casing vents be
- -? be functional
- -Grease and service to m f
- leaks
- service (pressure tested)
- bull plugged or blind flagged
- Valves
- maintain function
8) After being suspended for 10 plus consecutive years, a low-risk well will now become a well and have to follow appropriate criteria.
9) Where can a list of inactive wells be found?
What directive requires this?
Medium-risk
AER website—DDS
D-013
How does the AER classify the risk of gas wells containing H2S?
- Low-risk well
- Medium risk
- High-risk well
What must occur for a well to be removed from the suspended/inactive well lists?
- All wells:
- Inspect, service, and pressure test wellhead
- Inspect and service control systems and lease facility
- Medium and High risk:
- Pressure test casing to 7 MPA for 10 minutes
- If tubing is present, pressure test the tubing to 7 MPA for 10 minutes
Does a suspended well have to be disconnected from associated pipelines?
Yes
Wellhead has to be physically disconnected from the pipeline once the well is shut-in and requires suspension
What are the requirements/steps when disconnecting a pipeline?
Pipeline rules s. 82(3)(a-f)
- Physically isolate and
- Clean it
- Purge with
- Protect with suitable internal and external
- Do not isolate or disconnect so an adjoining pipeline has…
- Left in a safe condition- the fluids are…
- a. disconnect from an operating facility or another pipeline
- c. with fresh water, air, inert gas and if possible add an internal corrosion inhibitor
- d. corrosion control measures
- e. fittings or connection points remaining that could create stagnant fluid traps or dead legs unless locations are accessible and subject to scheduled inspections
- confirmed and documented non-corrosive
Perforating, Well Completions
A downhole tool that is located and set to isolate the
Bridge plugs may be permanent or retrievable, enabling the lower
lower part of the wellbore.
wellbore to be permanently sealed or temporarily isolated
from production or temporarily isolated from a treatment conducted on an upper zone
When it comes to pipelines, D-013 is useless so where do you find suspension requirements for pipelines?
Queens Printer -Section ?, Part ? -Discontinuation
82**
10
