COPL reviews first oil manufacturing at Cole Creek Unit in Wyoming


World Oil 

(WO) — Canadian Abroad Petroleum Restricted (COPL) and its companions introduced first oil manufacturing from the Frontier 1 sands at its Cole Creek Unit. The corporate started recompletion operations on the nicely 11-27-35n-77w on the finish of Dec. 2022 to guage the sunshine oil potential of the reservoir sands.


Frontier 1’s first oil manufacturing

The bottom of three Frontier 1 sands was perforated with sixty-five ft. of perforations with no subsequent stimulation. Preliminary fluid recoveries have been black heavy degraded oil, black emulsion, minor brown un-gasified mild oil and water. An extra of 800 Bbl. of sunshine freshwater drilling mud was misplaced into the formation throughout drilling 10.5 years in the past, in addition to cement throughout cementing operations. The nicely was then placed on pump for clear up as it’s the most cost-effective methodology to get better the invaded fluids and the resultant freshwater degraded crude oil from the close to nicely bore space.

Fluid entry from the reservoir has remained fixed by means of pumping at charges between 125-135 bpd. Gasified mild oil volumes elevated during the last week with growing oil cuts as much as 86% at week’s finish, with the nicely slugging heavy black degraded oil, emulsion and drilling mud periodically at larger water cuts (as much as 85%).

The proportions of heavy black degraded oil, emulsion and drilling mud are reducing because the nicely continues to wash up by means of pumping operations. COPL has opted to proceed with the present technique of nicely cleanup quite than a hydrocarbon-based stimulation to take away the degraded oil and emulsion from the close to well-bore space. A stimulation of this kind would take away the injury, although at a major price, financial and time.

manufacturing from the Frontier 1 from the 11-27 nicely at Cole Creek will have an effect on COPL’s petroleum sources by means of the reclassification of Potential Sources to Contingent Sources, and in the end its Reserves as further producing wells come on-line.

An “Oil Down To” elevation on the base of the Frontier 1 perforations has been decided. This elevation is roughly 760’ beneath the crestal elevation of the Cole Creek Anticline. The realm throughout the “Oil Down To” elevation is roughly 8,000 acres with reservoir sand thickness starting from 50-115 ft., thinning within the northern space. Roughly 50 ft. of Frontier 1 sands stay unperforated within the 11-27 nicely. These sands might be accomplished when the perforated sands in 11-27 are hydraulically fractured as a part of a stimulation marketing campaign on the recompleted wells later this 12 months.

Difficult completion historical past

Former operator Normal Petroleum Corp. first recognized mild oil within the Frontier 1 at Cole Creek in 1943. The 11-27 Frontier 1 completion was the second completion try within the Frontier 1 in Cole Creek’s historical past. The primary try was in 1966 by Mobil and was unsuccessful.

All nicely information obtainable to COPL point out average to extreme fluid losses into the Frontier 1 throughout drilling and cementing operations at Cole Creek and the areas to the east, thus making Frontier 1 completions difficult. This was the case with the 11-27 nicely in addition to Canadian Abroad Petroleum’s 14-30-35n-76w exploration nicely of 2021.

COPL’s recompletion program

COPL is constant with its Cole Creek Frontier 1 recompletion program. The second nicely in this system is 4-27-35n-77w. It’s positioned roughly 0.5 miles northwest of 11-27 with the reservoir sands 230 ft. larger in elevation. The decrease Frontier 1 sand might be perforated with fifty-six ft. of perforations. In frequent with 11-27, no stimulation of the perforations is deliberate. Reservoir high quality from wire-line logs from 4-27 nicely seems to be higher than the reservoir perforated at 11-27. Operations will begin when the required companies turn out to be obtainable.

Arthur Millholland, President and CEO Commented, “The outcomes from the Frontier 1 11-27 recompletion is a recreation changer for our Firm because the outlined oil-bearing reservoir at the moment covers a big space at Cole Creek with proof it extends additional down dip on the east flank of the anticline. These outcomes have additionally confirmed our inner analysis of the Frontier 1 after the drilling and analysis of our 14-30 exploration nicely final 12 months.

“The entire wells with wireline logs from the 1970’s to current have related petrophysical traits inside our mapped traits. At Cole Creek, we solely have 6-7 nicely bores with enough integrity for recompletion and hydraulic fracturing. One in all these wells, 12-23-35n-77w had oil circulate noticed at floor because of lowered mud returns throughout drilling of the Frontier 1 at an elevation beneath the “Oil Down To”. We are going to get to it in time.”




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