Kaybob Devonian Duvernay
Celtic, as operator, has drilled and completed its first exploration horizontal well at Kaybob South targeting the Devonian Duvernay shale formation. The Company pooled eight sections of 100% interest lands with two other industry partners, ultimately taking a one third interest in 27 gross sections.
The well, which is located at 00/15-33-060-20W5, was drilled and cased over 42 days at a cost of $4.0 million. The horizontal lateral was 1,787 metres, which was 500 metres longer than originally planned, allowing the addition of two frac stages making the total planned frac stages to 13 and leaving a 175 metre interval, which could be fractured by perforating.
During the completion of the well, six stages were fractured over a time interval of 10 days. Each stage was fractured with approximately 100 tonnes of sand and 1,500 cubic metres of slick water. While attempting to fracture the seventh stage, it is believed that a rupture in the casing occurred at the heal portion of the horizontal leg preventing the fracture of the remaining stages. It was decided to flow test the well with the six stimulated stages while determining the feasibility of fracturing the remaining stages. Tubing and recorders were run and the well has flowed on test starting September 11th. Prior to the flow test, the well flowed on clean-up for a total of 140 hours.
After three days on test, the well is currently producing natural gas at a rate of 2.1 MMCF per day and 56° API condensate. The gas is liquids rich and is expected to yield total liquids of approximately 75 barrels per MMCF of raw gas including free condensate.
After completing the flow test, the well will be shut-in, allowing for build-up. Bottom hole pressure is expected to be approximately 50 MPa. Although the completion operations were suspended part way through the process, it is estimated that the well could have been completed with a 13-stage multi frac for approximately $3.0 million, without any operational difficulties. As a result, total drilling and completion costs would be approximately $7.0 million.
The Company is encouraged with the results from the first horizontal well and anticipates good economics with expected gas rates from a horizontal well with a complete 13-stage fracture. The high liquids content provides enhanced economics in the current environment where oil fetches premium pricing over natural gas...
Kaivon tuotanto on kustannuksiin nähden todella huono ja en kyllä ymmärrä miten tuon perusteella yhtiö voi olla "rohkaistunut". Alkutuotannon pitäisi olla vähintään 3-4 kertainen, jotta tuo voisi olla kaupallinen. Ehkä johto näkee poraus ja viimeistely tekniikassa parannettavaa, joilla kaivon saa tuottamaan selvästi paremmin. Ehkä.
Celticin johto ei tähän mennessä ole tehnyt positiivista vaikutusta eikä tämä kyllä muuta tilannetta parempaan suuntaan. Geologialle ei mahda mitään, mutta pitäisi kyllä myöntää se että Duvernay ei vaikuta tuolla alueella kovin lupaavalta. Kaivossa mukana myös ainakin Yoho Resources.
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