Skip to main content

Hit enter to search or ESC to close

search

Servicios
TDH Software
- TDH Software Subscription
- TDH Bespoke Development
Course Schedule
Bespoke Training
Tool Kit
- Calculadora de Velocidad Anular
- Stuck Pipe Mechanism Diagnosis
Referencias
- Técnicas
- Soluciones
News
Empresa
Contacto
Training Login

linkedin youtube
search

Merlin Quiz - Test Your ERD Knowledge

10 Questions… How Many Can You Answer Correctly?

Start The New ERD Quiz!

Paso 1 de 11

9%

Nombre*
Nombre Apellidos
Correo electrónico*

Which factors listed below are relevant for hole cleaning in a high angle well?
- Flow rate
- String rotation
- Sweeps
- Drilling fluid rheology
- Drilling fluid gel strength

The shakers are close to capacity with large quantities of the material shown in the picture above. What does this indicate?
- The wellbore is unstable
- Downhole shocks and vibrations are high
- The mud weight should be increased
- The mud system is not inhibitive
- Hole cleaning appears to be effective

While drilling a 12-1/4” hole section the stand pipe pressure limit (maximum pressure that the rig can deliver) is approached. A decision is made to pull out of hole due to an MWD tool failure, but there is still 3,300 ft to drill. For the next run to TD which of the options below would be feasible options for reducing the stand pipe pressure, without adding significant risk for the rest of the section?
- Reduce high shear mud rheology
- Increase bit nozzle size / TFA
- Reduce flow rate to 640 gpm
- Change mud pumps pop-off settings
- Remove some heavy-weight drill pipe and/or drill collars

An 8-1/2" hole section is drilled in an ERD well (33,000 ft MD; 82° inclination) with 5-1/2” drill pipe and a short, light BHA (~200ft) and oil based mud. What would you expect to contribute the most to surge and swab pressures?
- Bottom hole assembly
- Oil / Water ratio
- Drill pipe
- Mud weight
- Inclination

Which of the following are benefits of taking pre-connection torque and drag readings with pumps off?
- Less risk of swabbing the formation
- The collected data will be more useful for comparison with tripping data
- Fewer variable / parameters to control for consistency
- Actual data will more closely match modelled data
- Avalanching risk reduction

The driller is back-reaming out of hole with the torque fluctuating between 30 to 40 kNm with a hookload of approximately 300 MT. Is there cause for concern?
- No
- Possibly, although more information is required
- Si

Downhole tool measurements indicate possible stick-slip vibration while drilling. Select the best course of action.
- Reduce WOB, reduce RPM
- Leave parameters as they are
- Increase WOB, reduce RPM
- Reduce WOB, increase RPM
- Circulate the hole clean

Which of the following are indicators of borehole instability?
- ECD lower than predicted (model)
- Fill on bottom after trips
- Cavings on the shakers
- Seepage losses
- Divergence of LWD logs from the drilling pass

On a re-entry (side-track) well that is planned with 10 ppg WBM in the section that has a high casing wear risk, what would be the most effective method of quantifying wear in the donor well casing?
- Accurately weighing metal collected from the flow line magnet array while drilling
- Running a multi-finger mechanical caliper before and after drilling the section
- Simulating wear conditions planned vs historical records
- None of the above
- Running an ultra-sonic wireline logging tool before and after drilling the section

Floating casing and liner strings is an important enabling technique for ERD wells, however which of the following are considered disadvantages of the technique?
- Handling a large quantity of displaced fluid at surface
- Casing collapse risk
- Inability to rotate when cementing
- Inability to circulate when running in hole
- Inability to rotate when running in hole

Tool Kit

Try these handy tools from Merlin

AV Calculator

Annular Velocity (AV) is one of the “Three Pillars” of effective hole cleaning in high-angle wellbores, with the other two being pipe rotation and the low-end rheology of the drilling fluid.

Stuck Pipe Mechanism Diagnostic Tool

Diagnose Your Stuck Pipe Mechanism

Head office in Perth, UK. Local support available in Houston and Perth, Australia.

Tel. +44 1738 627 922

© 2024 Merlin ERD. Website Design & Hosting by iHTTP. Registered in Great Britain and Northern Ireland Only: The ® mark displayed is registered exclusively within the territories of Great Britain and Northern Ireland. Any references to registration or accreditation apply solely within these jurisdictions.

linkedin
youtube

Servicios
TDH Software
- TDH Software Subscription
- TDH Bespoke Development
Course Schedule
Bespoke Training
Tool Kit
- Calculadora de Velocidad Anular
- Stuck Pipe Mechanism Diagnosis
Referencias
- Técnicas
- Soluciones
News
Empresa
Contacto
Training Login

linkedin
youtube

Download your results

"*" señala los campos obligatorios

Enter your email to recieve your results with additional advice.

Nombre*

Nombre Apellidos

Empresa*

Correo electrónico*

Hidden

Flow Rate

Hidden

Flow Rate Unit

Hidden

Hole Size

Hidden

Hole Size Unit

Hidden

Drill Pipe Size

Hidden

Drill Pipe Size Unit

Hidden

AV ft per min

Hidden

AV m per min

Download your results now

"*" señala los campos obligatorios

Enter your email to recieve your results with additional advice.

Nombre*

Nombre Apellidos

Empresa*

Correo electrónico*

Hidden

Differential %

Hidden

Wellbore %

Hidden

Packoff %

Hidden

q1

Hidden

q2

Hidden

q3

Hidden

q4

Hidden

q5

Hidden

q6

Call Now Button