USD 73.9746

-0.92

EUR 83.8354

-0.99

BRENT 69.52

+0.78

AI-92 46.87

0

AI-95 51.02

+0.07

AI-98 59.03

+0.04

Diesel 53.08

+0.07

401

Promising beginning of oil drilling in Colombia for the Canadian Gran Tierra Energy

Gran Tierra Energy Inc, a company focused on oil exploration and production in South America, started initial drilling results from Moqueta-1, the company reported in a news release.

Promising beginning of oil drilling in Colombia for the Canadian Gran Tierra Energy

Gran Tierra Energy Inc, a company focused on oil exploration and production in South America, started initial drilling results from Moqueta-1, the company reported in a news release. Oil and gas shows were recorded through the Villeta T Sandstone and the Caballos Formation with electric logs indicating a total potential hydrocarbon net pay of 108 feet in the two primary reservoir zones combined. In additional to the two primary reservoir targets, the Villeta Lower U Sandstone also recorded hydrocarbon shows with a potential hydrocarbon net pay of 25 feet. As a result of these initial indications, a program is being designed to test the fluid content and productivity of the zones. This test program is expected to start immediately and take approximately three weeks to complete.


“We are extremely pleased with the initial results from the first well in our 2010 exploration program,” said Dana Coffield, President and Chief Executive Officer of Gran Tierra Energy Inc. “In light of these early positive results, a comprehensive flow test program is being designed and implemented for the prospective zones. In addition, the existing well pad is being prepared for drilling of a delineation well with a deviated well bore in the event the flow test is successful.”


The Moqueta-1 exploration well, located 5 kilometers north of the Costayaco Field, spud on May 16, 2010, and reached total measured depth (MD) in basement at 4,080 feet or 4,073 feet true vertical depth (TVD) on May 29, 2010. The same sandstone reservoir sequences encountered in the Costayaco Field were found in Moqueta-1, including the Villeta T Sandstone and the underlying Caballos Formation. Oil and gas shows were encountered in both reservoirs during drilling. Log interpretations from data acquired after drilling indicate the presence of reservoir sandstones in the T Sandstone beginning at 3,684 feet MD (3,677 feet TVD) with an approximate potential net pay thickness of 55 feet, and in the Caballos Formation beginning at 3,825 feet MD (3,818 feet TVD) with approximately 53 feet of potential net pay interpreted from the well logs. No oil-water contact is evident on the well logs in any of the reservoir zones.


Pressure gradient data obtained with the wireline testing tool indicates the U sand is gas bearing with approximately 25 feet of potential net gas pay. In addition, the entire T Sandstone and the uppermost Caballos sandstone also appears gas bearing. The Lower Caballos interval appears to have a gross oil column of 40 feet, of which 26 feet appears to be net oil pay. No gas-water or oil-water contact is apparent from the pressure gradient data. Subject to successful testing and subsequent delineation drilling, there remains potential for additional oil down-dip.


Moqueta-1 is the first of seven exploration wells budgeted for 2010 in the Putumayo Basin of Colombia. Taruka-1 in the Piedemonte Sur block is the next exploration well scheduled to be drilled in the 2010 program and Gran Tierra Energy expects to utilize the same drilling rig as is currently being used at Moqueta-1.

Source : Gran Tierra


Follow us on Google News
Advertising at neftegaz.ru

Subscribe to our newsletter

of the best materials Neftegaz.RU

* Incorrect E-Mail Address

By clicking the "Subscribe" button I accept the "Agreement on the processing of personal data"


Advertising at neftegaz.ru