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Alba Mineral Resources has announced the completion of final Portland EWT sequence at Horse Hill

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Oilfield Technology,


The Horse Hill-1 Kimmeridge and Portland oil discovery is located in licence PEDL137 - in which Alba holds an 11.765% beneficial interest.

Following the completion of a final long duration pressure build up test, preparations for the primary Kimmeridge EWT are now underway.

The Kimmeridge EWT's goal is to establish the commerciality of the underlying KL3 and KL4 oil pools, which in 2016 flowed 40 API crude naturally to surface at an aggregate implied stable dry oil rate of 1365 bpd.

Further details:

  • The final HH-1 Portland flow test sequence was successfully completed, with all Portland operational objectives achieved.
  • The successful Portland re-perforation programme targeted 114 ft of oil pay, adding 14 ft of new pay. Following re-perforation, well productivity increased by up to 65%.
  • According to independent oil consultants Xodus Group’s, the well is capable of achieving a forecast initial 24/7 pumped rate of an estimated 362 bpd.
  • Plans are now being formulated to drill either the HH-1z sidetrack or HH-2 new drill as a horizontal Portland appraisal well, with a targeted daily production rate of two to three times the forecast potential HH-1 vertical well rate of 362 bpd.
  • Economic modelling indicates that HH-1 Portland is robustly commercial at an observed sustainable daily rate of 140 bopd post-reperforation and at oil prices of US$60/bbl. A planning application for long term production is planned to be submitted to Surrey County Council shortly before the completion of the forthcoming Kimmeridge EWT programme expected at the end of the year. Full-scale long-term production, targeted for 2019, is subject to co-venturer and regulatory approvals.
  • All 36°API Brent quality oil produced during the EWT is ‘dry’, containing only 0.02% water.
  • Preparation for the primary EWT objective, to establish the commerciality of the Kimmeridge Limestone 3 and KL4 oil pools underlying the Portland, has now commenced.
  • Kimmeridge testing will begin in the uppermost KL4 oil pool immediately following the removal of two suspension plugs and installation of a new completion string straddling the two Kimmeridge oil pools.

George Frangeskides, Alba's Executive Chairman, commented:

"We are very pleased to receive this positive preliminary report on the completion of the final HH-1 Portland flow test sequence and to learn that the Portland is on track for a declaration of commerciality, subject to receipt of the final connected oil volume analysis from HHDL's external consultants, Xodus."

"We note the exciting plans which are now being formulated to drill either the HH-1z sidetrack or HH-2 new drill as a horizontal Portland appraisal well. The Operator is to be congratulated on its foresight in applying for and obtaining all planning permissions and Environment Agency permits for a horizontal well, which will assist greatly in moving those plans forward at pace."

"We now await the imminent start of the Kimmeridge test programme, the goal of which is to establish the commerciality of the underlying KL3 and KL4 oil pools which flowed so productively in the short 2016 test programme.”

Following the completion of a final long duration pressure build up test, preparations for the primary Kimmeridge EWT are now underway.

Read the article online at: https://www.oilfieldtechnology.com/exploration/10092018/alba-mineral-resources-has-announced-the-completion-of-final-portland-ewt-sequence-at-horse-hill/

 

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