Steady development has been the name of the game for 2012-2013 Granite Wash activity. The granite wash is a heterogeneous series of sands, shales and siltstones that has yielded production since the late 1950s. Unconventional drilling and completion techniques have vastly improved the area’s production.
Most of the recent activity is in Beckham and Washita counties in Oklahoma and in Wheeler County, Texas ,and to a lesser degree, Oldham and Hemphill counties.
Gas can be found in multiple zones between 9,500 and 13,000 feet, and in some sections, as deep as 17,000 feet. The play deposition is thick (1,550 to 3,500 feet) and consists of as many as 70 different sandstones or conglomerate sections.
1 Chesapeake Operating Inc. – 5/25/13
Chesapeake Operating Inc. has completed #408H Thurman Horn, a second horizontal well in on the #4010H Thurman Horn SL pad. The Wheeler County (RRC Dist. 10), Texas, producer was drilled northward to 14,982 ft. and produced 7,700 bbl. of oil and 121 million cu. ft. of gas from granite wash in its first three months on stream. The new well is in Section 1, Camp CSL Survey. Oklahoma City-based Chesapeake’s new #408H Thurman Horn began producing in November 2012.
2 Linn Operating Inc. - 04/15/13
A Linn Operating Inc. horizontal Hogshooter (Missouri) Granite Wash discovery had an initial flowrate of 5,406 bbl. of oil equivalent (2,055 bbl. of oil, 1,915 bbl. of natural gas liquids and 8.6 million cu. ft. of gas) per day from a site in Mayfield Field. The 15,985-ft. #1H Anderson 25-11-26 is in Beckham County, Okla., and has a south lateral extending to a bottomhole in the same section. True vertical depth was projected at 11,220 ft. Additional drilling and completion information has not been disclosed. The Houston-based company is currently drilling its second horizontal Hogshooter prospect in the section about one mile east at #3H Brady 25-11-26 in Section 25-11n-26w.
3 Chesapeake Operating Inc. - 03/20/13
Two Washita County, Okla., horizontal producers were announced by Oklahoma City-based Chesapeake Operating Inc. In Section 13-11n-18w, #1H Bose 24-11-18 initially flowed 10.3 million cu. ft. of gas with 667 bbl. of 55-degree-gravity condensate and 463 bbl. of water per day. Production is from a fracture-stimulated interval of Des Moines Granite Wash B between 13,714 and 18,322 ft. Tested on a 20/64-in. choke, the flowing tubing pressure was 3,333 psi and the shut-in tubing pressure was 4,500 psi. The Breathwaite Field well was drilled to the south to 18,439 ft., 12,724 ft. true vertical, and the bottomhole is in Section 24-11n-18w. The #2H Bose 24-11-18 is in Section 13-11n-18w. It flowed 5.9 million cu. ft. of gas, 157 bbl. of 59-degree-gravity condensate and 218 bbl. of water per day. The well produces from Des Moines Granite Wash B at 13,544-18,159 ft. after fracturing. Tested on 22/64-in. choke, the shut-in tubing pressure was 1,900 psi and the flowing tubing pressure was 1,797 psi. The 18,238-ft. well has a true vertical depth of 12,749 ft. with a parallel lateral extending southward to a bottomhole in Section 24-11n-18w.
4 Linn Operating Inc. - 02/25/13
In Wheeler County (RRC Dist. 10), Texas, a Linn Operating Inc. well initially flowed 1,051 bbl. of 44-degree-gravity oil, 1.51 million cu. ft. of gas and 658 bbl. of water. The #2H Frye 9 is in Section 9, Block A-3, H&GN Survey, A-199. The well was tested on a 64/64-in. choke and the flowing tubing pressure was 200 psi. Production is from a horizontal section of the Missourian Kansas City A (Hogshooter) granite wash at 11,352-15,649 ft. The 15,817-ft. Mills Ranch Field well was acidized and fractured in 10 stages and had a true vertical depth of 10,687 ft. Linn’s headquarters are in Oklahoma City.
5 Forest Oil Corp - 12/20/12
A Wheeler County (RRC Dist. 10), Texas, a new producer by Forest Oil Corp. initially flowed 1,000 bbl. of 43-degree-gravity oil, 883,000 cu. ft. of gas and 3,000 bbl. of water per day. Forest’s #1016H Lott is in Lot 16, Section 3, Camp CSL Survey, A-27. The well is producing from a horizontal interval of Missouri Granite Wash B at 10,617-15,126 ft. and was completed after an 11-stage acidizing and fracturing. The new producer was drilled to 15,243 ft., 10,621 ft. true vertical. The #1016H Lott has been assigned to the Mills Ranch (Granite Wash Consolidated) Field. Forest’s headquarters are in Denver.
6 Samson Lone Star LLC - 10/11/12
At a development test in Wheeler County (RRC Dist. 10), Texas, Samson Lone Star LLC reported an initial flow of 2,113 bbl. of 46-degree-gravity oil, 5.52 million cu. ft. of gas and 209 bbl. of water per day. The Mills Ranch Field well, #5H Davis 64 SL, is in Section 64, Block A-7, H&GN Survey, A-8394. The venture was tested on a 36/64-in. choke with a shut-in tubing pressure of 2,000 psi and a flowing tubing pressure of 1,867 psi. The well produces from a fracture-stimulated horizontal interval of the Hogshooter (Missouri) Granite Wash at 11,566-16,212 ft. after drilling to 16,330 ft., 11,579 ft. true vertical. Samson is based in Tulsa.
7 Chaparral Energy - 10/10/12
Chaparral Energy LLC completed a Des Moines Granite Wash well that produced 1,017 bbl. of 49-degree-gravity oil, 11.8 million cu. ft. of gas and 940 bbl. of water per day during initial testing of a horizontal leg. The Hemphill County (RRC Dist. 10), Texas well, #1H Wright 122, is in Section 122, Block 41, H&TC Survey, A-1050. Production is from the C zone at 10,362-14,696 ft. following a 10-stage acidizing and fracturing. The venture was drilled to 14,868 ft., 10,417 ft. true vertical. According to the Oklahoma City-based company, the well produced 8,100 bbl. of oil prior to its initial potential test.
8 Apache Corp. - 10/09/12
Houston-based Apache Corp. tested a well that has the highest initial production for any oil well completed to date in the Dalhart Basin. The Oldham County (RRC Dist. 10), Texas, well, #1155 Bivins-LIT, is in Section 115, Block 47, H&TC Survey, A-353. The venture flowed 1,420 bbl. of 44-degree-gravity oil, 1.1 million cu. ft. of gas and 73 bbl. of water per day. Tested on a 48/64-in. choke, the flowing tubing pressure was 272 psi. The 9,710-ft. vertical well was perforated, acidized and fracture-stimulated in two stages at 9,210-20 ft. in Canyon Granite Wash.