The well was stimulated using ACTive Matrix and Profiling services first, after which the first-ever real-time production logging job was performed in the field using the ACTive PS service. During the injection of 1,725 bbl of preflush, acid, and VDA viscoelastic diverting acid fluids, a distributed temperature survey (DTS) facilitated the understanding of the injection profiles. Consistent acid placement was based on acid reactions in observed high-injection zones.

To measure the well’s injection profile following the acid stimulation treatment, water was injected on surface at 7 bbl/min while the up and down logging passes were executed. The ACTive PS BHA and PS Platform new-generation production services platform were conveyed to 12,560-ft TD. Measurements included pressure, temperature, casing collar locator (CCL), gamma ray, X-Y caliper, and inline spinner. The objective was to measure the well’s injection flow profile following the acid stimulation treatment.

Record set for longest fiber-optic–enabled coiled tubing string

Not only is this well the first to undergo real-time production logging in the field, it is the first well in the industry to use fiber-optic– enabled CT for production logging telemetry. This operation also achieved a world-record fiber-optic–enabled CT string length of 32,175 ft...

The data quality ensured by the ACTive PS service minimized logging misruns, which will prove especially important for future wells in the field. Stimulation was performed with one CT string, allowing the operator to mobilize a reduced amount of equipment just once, logistically saving time and resources while improving the safety of operations.

Because of this success, the operator planned remedial action to eliminate water production using the ACTive PS service. This system can also be used to optimize offshore barge use, with the multipurpose CT performing both conventional and real-time horizontal logging operations.