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This well is completed in the Halfway pool in NE British Columbia. During initial production periods the well was flowing and a bi-weekly dewaxing program was required to keep the tubing clean. The oil from this formation is quite light and the wax in it is categorized as soft. As the reservoir press. depleted, artificial lift was required In the form of a beam pump. For the first while we had problems with the tubing string waxing off. We tried a couple of different chemicals on a batch basis but continued to have problems. Your Enercats were then installed on the end of the tubing string during a workover. This system eliminated our wax problem. From going from hot oiling the tubing on a regular basis to not having to hot oil once in three years, Its easy to see the benefits of the tools. They saved on costs, intensive labor, downtime and reservoir damage.
Three months after running the tools, we pulled the rods on one of the wells to confirm that the ENERCAT Units were performing as claimed. (…) The Flowline has been pigged monthly since the units were installed down hole and the operator reports that there has been “No Wax” in the Pig Trap each time he has pigged it.
High lifting costs can quickly shrink profitability in even the most prolific oil fields. Cardium production in the Carrot Crest and Wolf Creek yields in the Drayton Valley Superintendent Area was inconsistent on its best day. Heavy Paraffin deposition in tubulars and flow lines forced operations to organize hot oiling and wireline dewaxing treatments on a weekly basis just to keep the wells running.
The Enercat tool was first used at our thermal Oil Sands project at Peace River, Alberta, in May 1995, in a well which had a history of chronic pump failures (seizing) as a result primarily of scale build-up. This particular well was subject to pump failures within three to six weeks of tart-up operation.
In May of 1996 an ENERCAT was purchased from Para-Tech Energy Services Inc. of Calgary. This unit was to be used at Talisman Energy Inc.’s A9-36-3-34 WI Hastings lease, located in southeast Saskatchewan.
We have just carried out a scheduled work over for the removal of the rod string and pump from our EVx 21 well in El Valle field in Southern Argentina. Our observations reveled no wax on our rod string, tubing or in the bottom hole pump.
This letter is intended to give you an update on the Enercat tool performance in our waxy oil wells in the Taranaki Basin, New Zealand. We have now run varying numbers of Enercat tools, dependent on flow predictions, in five different wells. We are impressed with the results in all our wells to date.
Reef recently acquired a suspended oil and gas property in southwestern Ontario. After our first two months of operation it was evident that significant paraffin deposition was plugging the tubing string and flow lines. The common local practice was to circulate hot water in order to de-wax tubing and flow lines. This was occurring every two to three weeks.
One of the fields operated by the Joint Venture Petrocumarebo & PDVSA, SA is La Vela Field. The majority of the wells have problems with the deposition of paraffin in the production string which cause a continual gradual decline in production. Production in LVO17X dropped by 80% which was indicative of the other wells in the field showing paraffin build up.
Zargon Oil & Gas was experiencing significant wax problems in its horizontal Viking Oil Wells located near Coronation, AB.
Chemical costs were as high as $8000/well/month. In order to reduce chemical costs, 2 Enercats were run below the BHP on one well as a test case. The well has now been producing 5 months without any chemical program and without any wax issues.
This letter is to inform you, that all 40 “Enercat” tools that have been installed in Kazakhstan earlier in 2004, are operating continuously and none of the wells with “Enercats” have been stopped due to the paraffin and/or scale depositions. The wells before Enercat intallation have been experiencing heavy deposition problems, which required hot oiling and chemical treatments two-three times a month.
We began installing Enercat tools during completion of new Spearfish wells in the Pierson, MB field in February, 2013. To date all other newly drilled wells and workovers have been equipped with Enercat.