| Client |
Project |
Project Description |
|
Apache |
PWRI Hydraulics and Surge Analysis |
Ongoing study of proposed new produced water reinjection (PWRI)
facilities in Forties fields including hydraulic analysis to determine
line size, deliverability and corrosion coating impacts and a surge
analysis to ensure operation within the MAOP over life of field. |
|
Wood Group |
ETAP Heron Cluster Slugging Study |
Slugging study to look at the propensity of the Heron
Cluster pipelines to slug and cause pressure fluctuations in the
ETAP CPF slugcatchers. Pressure
and liquid surges have been evident in the downstream lines so system
was modelled using historical operational data to predict when slugging
is likely to occur and to model various mitigation methods. |
|
Kerr McGee |
Janice Oil Export Wax Study |
Detailed wax study to model the oil export pipeline. Historical
export data was used to model wax deposition in the system over the
period when pigging had not occurred. The volume of
wax, location and maximum thickness of the deposits were predicted
and any limiting factors accounted for. Wax aging,
varying U-value and internal diameters accounted for over the period. Modelled
the introduction of new future field into the system to assess impact
to existing wax problems.
Validation of the model predictions with the offshore
pipeline tracer results is currently underway. |
|
Kerr McGee |
Affleck Studies |
Comprehensive steady state and transient analyses and
wax deposition studies of the Affleck subsea
tieback. Affleck fluids have
a high WAT so primary focus was to find a solution to maintain arrival
temperatures above the WAT and prevent wax deposition for normal
and turndown operation over life of field operations while maintaining
an economic solution. Developing outline startup and shutdown philosophies to ensure operation outside
hydrate and wax formation regions and within constraints of host
liquid handling and chemical injection facilities. |
|
Kerr McGee |
Dumbarton Studies |
Comprehensive flow assurance studies of various subsea
tieback options for the Dumbarton field redevelopment.
Initial transient analysis focused on slugging issues, cooldown, startup and depressurisation
for a long-distance tieback for life of field scenarios to determine
the operational feasibility of the system. Feasibility
of installing an HSP into Dumbarton wells for one option was investigated. System
requirements defined in OLGA model from topsides pump through to
the first stage separator.
Wax deposition studies were performed working in conjunction
with a fluid testing laboratory to obtain wax diffusion rates for
use in the wax prediction model. Deposition rates and
wax thickness over time and recommended pigging frequencies determined
for infield and export pipeline options. |
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