Well Testing and Wireline Operations - 1

Well Testing and Wireline Operations ___________________

Highly experienced professional staff in Well Testing and Wireline Department of OEOC have been engaged in numerous testing and wireline operations on wells which have been carried out on different Iranian oil and gas fields during the last 30 years. The sites include : NAR , KANGAN , SARKHOON , GHESHM , DALAN , KHANGIRAN , GONBADLY and NAFT SHAHR.

Below is a brief description of equipment and capabilities of OEOC on well testing and wireline operations :

Full Bore Drill Stem Testing ( FBDST )

FBDST is a temporary well completion to let flow of the Well to perform production test and record down hole Pressure and temperature . Completion is done using 7 in. and 9 ⅝ in. Packers . We use one FBDST unit which consists of two sets of test strings with 5 in. OD and 2 ¼ in. ID and 15000 psi working pressure . The tools are H2 S service.

Electronic Memory Gauge ( MQG – X )

MQG-X with 1 Mb memory capacity can record 200000 data set.

Each data set consists of date, time, pressure and temperature.

Battery is of lithium type that can work up to 26 days in the hole.

Mechanical DST

To evaluate hydrocarbon potential of an un-known formation and to determine down hole pressure and temperature of such a well, a mechanical DST is used. This tool has 4 in OD and 1 3/4 ID with 15000 psi working pressure. It can be used with 5 in., 7 in. and 9 5/8 in. packers.

Mobile 3- Phase Test Separator

OEOC has three mobile separators that can each handle 15000 BOPD and 75 MMSCFD gas and 2000 BPD salt water.

Each separator is equipped with rupture disk and relief valve to ensure high safety.

Gauge Tanks

To measure separated liquids derived from the separator, we have 3 tanks with 100 bbl capacity. Inner surface of tanks are coated with epoxy materials to resist against corrosive agents.

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