#TITLE_ALTERNATIVE#
Gas lift has been widely used as a mechanism to produce fluid artificially, typically running in a conventional jointed tubing completion string (conventional gas lift) or, more recently, in manufacturer installed spoolable systems utilizing continuous pipe called permanent coiled tubing gas lift (P...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/22478 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Gas lift has been widely used as a mechanism to produce fluid artificially, typically running in a conventional jointed tubing completion string (conventional gas lift) or, more recently, in manufacturer installed spoolable systems utilizing continuous pipe called permanent coiled tubing gas lift (PCTGL). PCTGL is a new applications utilizing modifications of existing equipment and process which have enabled on location make up of coiled tubing conveyed gas lift strings in order to inject pressurized gas to lighten the fluid column until reaching adequate bottom hole pressure to produce the desired flow rate and the fluids is produced through the annulus between tubing and inserted coiled tubing. <br />
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This application was designed as an alternative to conventional gas lift as well as a further development on existing gas lift well to increase the liquid production rate. Achieving a higher liquid production with a steady decline in the rate will make PCTGL method recovered a larger cumulative oil production of the well. Besides, PCTGL also effectively addressed economics problems by avoiding expensive and frequent workover operations. <br />
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The study compares each liquid production rate associated with cumulative oil production in volatile oil reservoir between natural production, gas lift, and PCTGL; and operates PCTGL to improve the cumulative in existing gas lift well. The simulation was done using PROSPER and PETREL. It is then found that PCTGL achieves the highest cumulative oil production by 15% higher than conventional gas lift and nearly 85% more than natural production. PCTGL was also successfully applied in an existing gas lift well with 10%-increase in cumulative oil production. In conclusion, PCTGL is a proven favorable and simple method for both primary and secondary artificial lift application in volatile oil reservoir to gain a higher liquid production rate and cumulative oil production. |
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