Evocutis PLC - Horse Hill-1, Further Update on Flow Test
RNS Number : 2654P
Evocutis PLC
17 February 2016


Evocutis plc


("Evocutis" or the "Company")


Further Update on Flow Test

Horse Hill-1 Oil Discovery, Weald Basin, UK

Further Significant Oil Flows to Surface from Lower Kimmeridge Limestone


Following the announcement on 16 February 2016, Evocutis (AIM: EVO, ISDX: EVO) announces that Horse Hill Developments Limited ("HHDL") has informed the Company that light, 40-degree API, sweet oil has continued to flow naturally to surface from an 80-foot zone within the Lower Kimmeridge limestone interval at a depth of approximately 900 metres below ground level.

Flow re-commenced at around 07.45 am GMT yesterday at a steady oil rate in excess of 456 barrels of oil per day over a further 9.5-hour period using a smaller 28/64-inch choke in order to further stabilise the flow. Yesterday's flow consisted of dry oil with zero water.

As previously announced, Phase 2 and Phase 3 operations will move to the shallower Upper Kimmeridge limestone and Portland sandstone zones at approximately 840 and 615 metres below ground level, respectively, once the Lower Kimmeridge testing is completed.

The HH-1 well, drilled at the end of 2014, is located within onshore exploration Licence PEDL137, on the northern side of the Weald Basin near Gatwick Airport, in which Evocutis owns a 1.3% interest.

Interest in Horse Hill:

The HH-1 well is located within onshore exploration Licence PEDL137, on the northern side of the Weald Basin near Gatwick Airport. Evocutis owns a 2% direct interest in HHDL. HHDL is a special purpose company that owns a 65% participating interest and operatorship of Licence PEDL137 and the adjacent Licence PEDL246 in the UK Weald Basin.


Qualified Person's Statement:

Stephen Sanderson, who has over 35 years of relevant experience in the oil industry, has approved the information contained in this announcement.  Mr Sanderson is a Fellow of the Geological Society of London and is an active member of the American Association of Petroleum Geologists.



For further information please contact:


Evocutis plc:                                                                                         +44 (0) 20 7440 0640

Hamish Harris


Nominated Adviser and Broker:                                                       +44 (0) 20 7148 7900

Cairn Financial Advisers LLP                                                           

James Caithie / Liam Murray





Device incorporating a fixed or variable orifice that is used to control fluid flow rate during testing of an exploratory discovery

degree API

A measure of the density of crude oil as defined by the American Petroleum Institute


a discovery is a petroleum accumulation for which one or several exploratory wells have established through testing, sampling and/or logging the existence of a significant quantity of potentially moveable hydrocarbons

extended flow test

a flow test, as per the permission granted by the Oil and Gas Authority, with an aggregate flow period duration over all zones of greater than 96 hours and up to 90 days maximum.

flow test

a flow test or well test involves testing a well by flowing hydrocarbons to surface, typically through a test separator. Key measured parameters are oil and gas flow rates, downhole pressure and surface pressure. The overall objective is to identify the well's capacity to produce hydrocarbons at a commercial flow rate


a sedimentary rock predominantly composed of calcite (a crystalline mineral form of calcium carbonate) of organic, chemical or detrital origin. Minor amounts of dolomite, chert and clay are common in limestones. Chalk is a form of fine-grained limestone


a clastic sedimentary rock whose grains are predominantly sand-sized. The term is commonly used to imply consolidated sand or a rock made of predominantly quartz sand.

sweet oil or crude

A type of oil that contains less than 0.42% Sulphur


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