rns -wow!11 Mar 2020 07:10
"This second test, focusing on the upper 345 feet of pay, confirms the material size of the discovery at Cascadura and the vast opportunity that exists on our Ortoire property. In addition to estimated production at our Coho discovery and our existing production, this well gives us a clear path to 10,000 boe/d with an estimated 75% natural gas and 25% liquids product mix. With domestic demand for natural gas exceeding current production, Touchstone is working with industry partners to bring these new volumes on-stream as quickly as possible. With the Cascadura well only three kilometres from existing infrastructure, we are evaluating the most efficient path forward to tie these significant volumes into the domestic sales network."
Cascadura-1ST1 Production Testing
As previously announced, the Cascadura-1 exploration well on the Ortoire exploration block, onshore in the Republic of Trinidad and Tobago (Touchstone 80% working interest operator, Heritage Petroleum Company Limited 20% working interest) was sidetracked (ST1) and drilled to a total depth of 6,350 feet. Cased hole wireline logs and drilling samples indicated approximately 1,037 feet of prospective hydrocarbon pay in the Cruse and Herrera formations at depths between 1,030 and 6,350 feet. The first stage of the production test of the Cascadura-1ST1 well was designed to evaluate the lowest 162 feet of prospective pay found in the Herrera Gr7c and Herrera Gr7a formations between 6,056 and 6,218 feet. The second stage of the production test evaluated 345 feet of prospective pay between 5,570 and 5,915 feet in the Herrera Gr7bc.
Stage one testing
Stage one was completed on January 17, 2020, and natural gas production testing commenced on February 4, 2020 with flow tests spanning a total of 44.5 hours, comprised of an initial clean-up flow period, followed by an initial shut-in period and a four-step rate test, including a final flow test which was extended to a total of 24 hours.
Stage one testing achieved a peak production rate in excess of 5,735 boe/d (12% liquids) during the extended 24-hour flow test period. This production rate included 30.1 MMcf/d of natural gas and 710 bbls/d of natural gas liquids, with a flowing pressure of 3,305 psi through a 40/64" choke. During the final 24-hour extended flow test period, the well averaged a production rate in excess of 5,157 boe/d (13% liquids), including 26.8 MMcf/d of natural gas and an estimated 691 bbls/d of natural gas liquids. The flowing pressure of the well during this test period was 3,296 psi through a 40/64" choke, resulting in an estimated 20% drawdown. A total of 39.4 million cubic feet of natural gas (6,570 barrels of oil equivalent) was produced during testing, with 959 barrels of natural gas liquids and 41 barrels of water. During the final extended flow test, Cascadura-1ST1 yielded 55° API natural gas liquids at a ratio of approximately 26 barrels of natural gas liquids per million cubic
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