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Samson Ups Bakken Production; Talks Permian Bluff 1-11 Results

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   |    Tuesday,June 16,2015

Samson Oil & Gas Limited has reported a production, hedging and operational update on its Bluff 1-11X well in the Permian.

Total Company Production

Samson’s net monthly production, for the last six months, is as follows;

Samson continues to increase its net oil production given the higher availability of wells within the North Stockyard field. Currently all wells are on line.

North Stockyard has a total well count of 23 wells made up of 14 middle Bakken, 8 Three Forks bench 1 (TF1), and 1 Three Forks bench 2 (TF2) wells. Rainbow has a single middle Bakken well. The status of these wells at the end of May was as follows:

Hedge Book

The hedged portfolio is as follows:

As of June 14th, 2015 the book value of the hedge was approximately $240,000, valued by Samson’s counterparty.

Bluff 1-11X

An extended flow test of the Permian aged “9,500 sand” continued during the month with the well flowing consistently at around 12.2 MMcf/D of gas at a flowing pressure of 1,500 pounds per square inch gauge, on a 34/64ths choke. Some water production has been measured, and based on the chemical analysis of this water it is water of condensation, rather than formation water associated with a water leg. This conclusion is based on the “freshness” of the water, which means the water is condensed in the production system and is therefore in a vapor phase in the reservoir. The volumes being produced are less than 20 barrels of water per day which is consistent with an ability for the gas to contain 600 lbs. of water vapor per million cubic feet of gas at the known reservoir conditions (pressure of 2900 psi and a temperature of 250 degrees F).

This reservoir had previously been flow tested at around 8 MMcf/D of gas composed of 97% nitrogen and 3% hydrocarbons. Various technical analyses have suggested that a fluid boundary is present within the reservoir volume and this test is designed to produce a portion of the gas cap in order to observe whether the fluid beneath the gas cap is either water or oil.

The well was shut in for a pressure build up during the weekend of June 13 and 14, and this data will be used to observe the movement of the fluid boundary, which was seen on the initial build up pressure test. The well has produced a total of 440 MMcf of gas. An analysis of the build-up data will enable the reservoir model to be updated as to when the water or oil leg can be expected to be seen at the well. Thus far the modelled and actual reservoir pressure appears to be consistent with the extracted volume and as such we expect to produce around 1,200 MMcf of gas before seeing either the water or oil leg to this reservoir. However there is some uncertainty in this model because of the unknown variables of hydrostatic pressure and the volatility of the oil leg if it exists.