High-velocity flow may appear as more of a liquid “Mist,” but as gas production and velocities decline, liquids begin to collect on the tubing walls, slugs start forming, liquids begin accumulating in the bottom of the well, and eventually, the liquids may stop gas production entirely.
Multiphase compression technology is a new concept that is designed to combine the benefits of multiphase production with operating efficiencies similar to that of a traditional reciprocating compressor.
The technology potentially can give producers a new option to maximize the production of multiphase wells with high gas-to-liquids ratios.
It has been tested on multiple Statoil-operated wet gas wells in the Eagle Ford, successfully handling multiphase streams coming from wells without any additional separation facilities.
On the other hand, a traditional compressor requires installing a separator, heater treater, storage tanks and other facilities to remove liquids from the well stream before entering the compressor.
The field is set up for producing multiphase flows, but without any compression at the wellhead. Each well is equipped with a test separator, but no production separation or other facilities, making it ideal to drop in a multiphase compressor without requiring additional equipment.
At 16:00, the well produced a large liquid slug and the compressor was able to process liquids at the rate of several hundred barrels a day over the course of the next hour or so, with the well beginning to flow again.