Industry

Angus Energy gives details of work to find Brockham water zone

190403 Brockham presentation 2

Extract of Angus Energy presentation for investors about Brockham oil well in Surrey, 3 April 2019.

The operation to identify a water zone in Angus Energy’s Brockham sidetrack well in Surrey has been estimated by the company to take up to 10 weeks.

Angus confirmed in February 2019 that part of the target Kimmeridge oil interval was producing water.

This was discovered during initial flow testing. It inhibited significant oil flow and prevented reporting of sustainable flow rates, the company said.

A presentation to investors posted online today allocated 19 days to isolating the water zone, reperforating this section and repeating well completion operations.

The statement did not say when the work would start. But there has been a suggestion on social media that the workover rig would be delivered on 12 April 2019. Angus said last month it had signed a contract with P W Well Services.

190403 Brockham presentation 1

Extract of Angus Energy presentation for investors about Brockham oil well in Surrey, 3 April 2019.

Angus described the work as “quick and relatively easy”.

It said once the water-bearing section had been identified a bridge plug would isolate the zone.

There would be a full logging programme over the perforated section, it said. Perforation guns would then re-shoot the oil section to “enable effective communication with the fracture system”.

Well testing equipment would then be ordered (an estimated 14 days) and installed (10 days). The first flow test was estimated to take 11-16 days. This would be followed by longer-term production testing.

190403 Brockham tweet

The company has promised to post regular updates through the regulatory news service and on its Twitter feed. It said news blackouts should not be assumed to be good or bad news.

Managing director, George Lucan, said:

“We look forward with excitement to completion of these works.”

Yesterday, the company declared it held 458,944,208 ordinary shares with voting rights.

Update: article corrected to remove reference to the prohibited use of acid at Brockham. Angus Energy has complied with a permit pre-condition which allowed the use of an acid wash.

9 replies »

  1. So , how long is the section that is leaking ? I thought that the Kimmeridge was naturally fractured so I cant see how the water will be isolated if its along the whole of the perforated well ? I think they will need a lot more bridging tools and or another side track. Mind you , the history of Brockham shows continued water problems even before Angus became operators ? Same thing at Lidsey and Balcombe , maybe the Weald is just waterlogged ?

    • This operation is an easy standard practice practice for isolating water production, running a well logging programme to identify the water producing section, setting a bridge plug and isolating the water production zone and identifying an oil production zone.

      Jono: if you can read a well schematic it is easy to follow and by the sounds of it you obviously you cannot see the perforated section is 195m long!
      It does not need a side track?!
      Weald Waterlogged?? Haha…

      As stated on the well schematic and the brief operation it is quite simply easy to follow, You are obviously not experienced in well operations, obviously.
      What is your profession, Before you were an expert in the energy industry?
      As my PHD lecturer rightly said to the class if you don’t ask then don’t be suprised when you have been caught out…

  2. Hmm, new management, same old misleading statements.

    They have written “Production license” in bold, but only have permission for appraisal.

    • The Brockham site has a production license to 2036. They are indeed appraising BRX4z which is a sidetrack. The well from which the sidetracking took place has production approval even if the sidetrack itself has not yet arrived at that formal stage, which of course follows appraisal.

    • So what makes you think that the whole of the 195m isn’t leaking water ? Angus say that the whole Kimmeridge is fractured so anyone can see that its more than likely not to be some random 5 mtr section that holds water . Simple classroom stuff . I don’t need a degree to see that Angus have totally messed up , they did things in a hurry and thought that nobody would notice . Nice to see the news about the Ineos injunction today too , I wonder how Weald oil companies will feel about a little bit more attention ?

      • Jono: hahaha… you are such a couch expert!
        Operators dont have the time and money to do things in a hurry, and didnt think anybody would notice?, its not a conspiracy theory! Its Petroleum Engineering, something which takes years of literature and experience, not sitting an ass on a couch!

        A well log programme with diagnostics will pin point the exact issues with the well integrity log, wall thickness of the tubing, pressure / temperature & fluid density meaning what fluid is in the well and at what depth, then then can bridge off that specific zone and produce fossil fuels, and refine to the grid, so your local
        power station can power your home and your home computer.., pretty neat huh!!

      • Jono

        It is an interesting thought.

        However, were the complete section naturally fractured such that the oil and water were mobile and commingled then the oil would be above the water ( given the time it has been there ) and they would just need to take the oil off the top?

        The key issue is, once the water is isolated, is there enough oil there to make it all worthwhile?

      • The fact that Horse Hill 1 is producing dry oil from the Kimmeridge is one clue for you, but I’m sure you find it more exciting to fantasise over something very distant from reality.

  3. Good for Angus! Antis were only whinging recently about a water shortage. Two birds for the price of one. What’s not to like-except for the antis who find it difficult to like much at all?

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