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Boy Gas Lift Case Study

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Well economics were viewed to assess and justify a poor boy gas lift/ plunger lift install on the potential candidate. WI and NRI were taken into account as well. It was found that TRE maintains a 93.1 % WI on the plunger candidate with a NRI of 69.8 %. The NRI to WI ratio is found to be 75 %. Common NRI/WI ratios range from 75% to 87.5%, so this well would fall at the lower end of the spectrum. The candidate well has a lot of problems with salt. It is the only well with a packer in the area so water and soap cannot be pumped down the backside under current conditions, however, the packer is removable. Field operators are hesitant to apply soap sticks as an intermediate step because of the manner in which salt build up breaks loose in the …show more content…

The well (BOE 16-16) is deep and it is thought that the plunger will need extra assistance to operate properly. It is important to note that there is a high pressure line next to the well. The current set up will allow for an easier and cheaper poor boy gas lift installation. In addition, a poor boy gas lift system will allow chemical and foamer injection into the well as needed. These injections would help correct the salt build up issues that the candidate well experiences. The idea is to try a poor boy gas lift before installing a plunger lift. This may be a case where a plunger lift is not needed in conjunction with a poor boy gas lift. Judging from Cygnet and discussions with field personnel, swabbing typically occurs every couple of weeks on the plunger candidate but has decreased to once a month since March of 2015. See Fig. 1 for current Cygnet data. The current cost for swabbing this well is about $4,000 monthly. Additionally, the well is offline and not producing during these treatment and swabbing periods, which amounts to 1-3 days per month. Cygnet analytics suggest shut in times of 24 to 72 hours each time swabbing occurs. Each time shut-ins occur on the candidate the field operations say that it becomes harder to get the well started again. It is thought that these issues further compound the monthly cost of maintaining this well at its current

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