Encore plans 22-stage frac in Williston lateral

By OGJ editors
HOUSTON, Oct. 29
-- Encore Acquisition Co., Fort Worth, plans to apply a 22-stage frac in a Three Forks-Sanish (TFS) horizontal well in the Williston basin in order to compare single-stage and multistage frac effectiveness.

Encore completed its first TFS well in the quarter ended Sept. 30 in Bear Creek field in Dunn County, ND, where it previously drilled four other successful Middle Bakken wells.

It reported a completion rate of 1,500 boe/d from the Werre Trust 21-3H well, with a 3,700-ft lateral on a 640-acre unit and an open hole frac with 812,000 gal of slick water and 300,000 lb. of sand. Well cost was $4.1 million, or $600,000 below the company’s estimate.

At an offset to the Werre Trust 21-3H, Encore plans to apply a 22-stage frac to enable its technical staff to further compare the economics of multistage fracs and single-stage fracs with a follow-on re-frac in order to maximize the future returns of wells drilled in the company’s large Bakken-TFS acreage position.

Encore also plans to add a rig at the end of the fourth quarter of 2009 to increase production growth in the large, oily resource play.

Encore performed seven refracs in the quarter for a 7-day production uplift that averaged 184 boe/d. The company has run refracs on nine wells this year, adding a gross average of 80,000 boe/refrac for an average $330,000 or an average finding and development cost of $5/net bbl of reserves.

Two important refracs were at the Cherry Creek State 44-36H well that had 191 boe/d of increased production and the McCoy 44-36H well with a 263 boe/d increase, both in the Cherry Creek field area of McKenzie County, ND, where Encore has 77,000 net acres.

Related Articles

Devon Canada files with AER for Walleye oil sands project

09/05/2014

Devon Canada Corp. has submitted applications with Canada’s Alberta Energy Regulator for its Walleye steam-assisted gravity drainage project.

CNRL files OSCA application with AER for Grouse oil sands project

08/27/2014 Canadian Natural Resources Ltd. has submitted an Oil Sands Conservation Act application with Alberta Energy Regulator for its Grouse steam-assisted...

AER strengthens air quality requirements for Peace River operators

08/19/2014 Addressing emissions and odors, Alberta Energy Regulator says it has strengthened requirements to capture casing and tank top gas from heavy oil an...

BlackPearl files OSCA application for Blackrod SAGD

08/19/2014 Alberta Energy Regulator reports that BlackPearl Resources Inc., Calgary, has filed an Oil Sands Conservation Act application for the Blackrod comm...

Careers at TOTAL

Careers at TOTAL - Videos

More than 600 job openings are now online, watch videos and learn more!

 

Click Here to Watch

Other Oil & Gas Industry Jobs

Search More Job Listings >>
Stay Connected