SPE Well Completions and Stimulation 2

Question 1

What is the primary purpose of a packer in a well completion?

Accepted Answer

To isolate zones and seal the annulus between tubing and casing

Answer

To increase wellbore diameter

Answer

To measure downhole pressure continuously

Answer

To prevent gas migration to surface

Question 2

In a gravel pack completion, what is the primary function of the gravel?

Accepted Answer

To filter formation sand while maintaining fluid flow

Answer

To increase permeability around the wellbore

Answer

To chemically stabilize clay minerals

Answer

To act as a proppant in hydraulic fractures

Question 3

Which type of perforation gun system is conveyed on electric wireline?

Accepted Answer

Wireline-conveyed perforating

Answer

Tubing-conveyed perforating (TCP)

Answer

Coiled tubing perforating

Answer

Drillpipe-conveyed perforating

Question 4

What does the term 'skin factor' represent in well completions?

Accepted Answer

A dimensionless measure of near-wellbore flow restriction or enhancement

Answer

The thickness of the formation damage zone

Answer

The permeability of the gravel pack

Answer

The depth of perforation penetration

Question 5

What is the main advantage of an openhole completion over a cased-hole completion?

Accepted Answer

Lower cost and no perforation damage

Answer

Better zonal isolation

Answer

Easier workover operations

Answer

Higher wellbore stability

Question 6

Which fluid property is most critical when designing a hydraulic fracturing treatment to prevent premature screenout?

Accepted Answer

Fluid viscosity and leak-off coefficient

Answer

Fluid pH and salinity

Answer

Fluid density and temperature

Answer

Fluid color and turbidity

Question 7

In a smart well completion, what do Inflow Control Devices (ICDs) primarily accomplish?

Accepted Answer

Balance flow contributions along the wellbore to delay water or gas breakthrough

Answer

Measure reservoir temperature at multiple points

Answer

Provide zonal isolation between pay zones

Answer

Inject chemicals into the formation