| PETROSPEC ENGINEERING LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110308816 | METHOD OF INSTALLING AND REMOVING AN ELECTRIC SUBMERSIBLE PUMP - A method of servicing an electric submersible pump in a well with a positive wellhead pressure includes providing production tubing in the well casing, a coil tubing string within the production tubing having an electric submersible pump at a downhole end of the coil tubing string, and a pump-receiving housing above the injection port of the wellhead. With the injection port sealed and the pump-receiving housing opened, the electric submersible pump may be inserted or removed from the pump-receiving housing. With the pump-receiving housing closed and the injection port opened, the electric submersible pump may be moved to or from the production tubing in the well. | 12-22-2011 |
| 20110224907 | MINERAL INSULATED CABLE FOR DOWNHOLE SENSORS - An apparatus for measuring downhole pressure includes a plurality of conductors within a mineral insulated cable, a pressure sensor attached to at least two of the conductors, and a thermocouple embedded in the mineral insulated cable. The pressure sensor generates a signal that is dependent upon pressure. The thermocouple is rated for temperatures greater than 150° C. The thermocouple generates a signal that is dependent upon temperature. | 09-15-2011 |
