Comitt's Solution

Our technical team suggested using the EXCITE System™ for focused acid treatments of each producing stage to ensure damage in every producing fracture was treated. The EXCITE System™ was set up with 65 ft packer to packer straddle which would isolate the perforations for each stage in a single trip.

Sequence of Events

In August 2018, Comitt performed the acid re-stimulation. The EXCITE BHA was RIH on a tapered 2-7/8” x 2-3/8” tubing. For each stage, fluid was pumped down the tubing string to activate the EXCITE System™. A pressure signature was observed on surface each time the tool was set, and 2000 gallons of 15% HCl fluid was placed into each stage. Once a treatment was completed, the EXCITE System™ was un-set by unloading tubing pressure, and the tool was repositioned to the next stage above. A total of 30 zones were stimulated in a single trip, with an average of 15 minutes between each stage. A total of 60,000 gallons of acid was pumped during the job, with treatment pressure up to 7,000 psi and treatment rates between 5-7 BPM for each stage.

Results and Conclusions

  • Distinct set, stimulation and un-set signatures were observed for each stage during the treatment, providing operational confidence.
  • The quick and smooth stimulation of the 30 stages saved operational time and money
  • One-month post operation, client sent update of the production – “The acid job repaired the damage consequently increasing our EUR to pre frac hit projections”. The operation proved to be a great ROI for our client.
  • Acid re-stimulation using Comitt’s Excite System™ was tested and validated as an effective solution for revitalizing wells under frac hit damages.

  • This field is for validation purposes and should be left unchanged.