Less Ads, More Data, More Tools Register for FREE

Pin to quick picksOEX.L Regulatory News (OEX)

  • There is currently no data for OEX

Cambay-77H - Interim Flow-back Update

21 Aug 2014 07:58

RNS Number : 7054P
Oilex Ltd
21 August 2014
 



 

21 August 2014

 

 

CAMBAY-77H - Interim Flow-back Update

 

· Cambay-77H continues to recover light oil and frac fluids

· Encouragingly, no formation water has been encountered during flow-back

· Flow-back results continue to show evidence that Cambay-77H can be a high performance well

 

Oilex Ltd (ASX: OEX, AIM: OEX) is pleased to announce that Cambay-77H continues to produce light crude oil and gas as the well recovers frac water during clean-up.

Cambay-77H crude oil recovered from flow-back operations is currently being transported to a nearby refinery for sale, where it attracts a price similar to Bonny Light Crude. Gas produced concurrently with crude oil during flow-back continues to be flared to ensure safety of all well-site personnel.

Samples of the oil, gas and water have been shipped to facilities for analysis. Preliminary analyses of the recovered water have been received and confirm that the water is consistent with frac water and not formation water. Oilex is currently awaiting analysis results for the oil and gas samples.

Oilex is also pleased to confirm the following field measurements recorded during flow-back and clean-up of Cambay-77H:

· Light crude oil/condensate average of API 48.3º,

o Highest API value - 50.1Âş and lowest value of 43.6Âş

· Hydrocarbon liquid to gas ratio is calculated to be:

o Cumulative basis - ~120 bbls per MMscf

o Average while flowing the well - ~130 bbls per MMscf

o This is ~ 300% higher than anticipated as part of the well design

· Downhole pressure and pressure build-up surveys conducted during the initial flow-back operation have been compared to frac operations pressure data and confirm the following:

o Original reservoir pressure from pseudo-radial flow results of the micro-frac was calculated to be ~4330 psi, as announced on 02 July 2014

o Flowing Bottom Hole Pressure (FBHP) in the horizontal section was measured to be between~2250psi to 2500psi.

 

 

The data collected to date during flow-back operations are interpreted by Oilex as follows:

· The light crude oil is consistently measured in the range of API 45 - 50 degrees and therefore may be considered a condensate. However as seen in the accompanying photograph, Cambay-77H liquid hydrocarbon has the appearance of other Cambay crudes. It is of high quality and the laboratory results will provide more information.

· On the basis of the recent laboratory analysis, the water being recovered is frac water. To date, no aquifer has been identified nor has any gas-water contact (GWC) or oil-water contact (OWC) been intersected in the 39 well penetrations of the Y zone Eocene reservoir section within the Cambay PSC.

· Pressure data indicates a partial clogging of the well bore perforations. This situation has occurred in frac'd vertical wells in the Cambay Basin and can be commonly encountered in the industry. At Cambay-77H, partial blockage appears to be caused by residue from the breakdown of the polymer gel, used in the frac fluid, and very fine particulate matter. This can be effectively treated using proven industry techniques. As such, Oilex, on behalf of the Cambay Joint Venture, is preparing a remedial treatment plan using coiled tubing to deliver a chemical flush to clear possible blockages that may exist. This type of remedial treatment is common practice and not unexpected for the first well of this design in India

Managing Director of Oilex, Ron Miller, said;

"It is a nice sweetener to continue production of crude oil which sells for an attractive price during flow-back and clean-up as some North American wells only flow water during early clean-up. To date, the data collected continues to support Cambay-77H as capable of being a high performance well compared to previous well designs consisting of vertical or deviated wells with single fracs in the Cambay Basin. As the first well of this type in the Cambay Basin to "flow-back and clean-up", it is not unexpected for some remedial work as part of those operations."

 

Please click on the link below to view the picture entitled

"Cambay Crude Oils and Condensates".

 

http://www.rns-pdf.londonstockexchange.com/rns/7054P_1-2014-8-21.pdf

For and on behalf of Oilex Ltd

Ron Miller

Managing Director

For further information, please contact:

Oilex Ltd

Ron Miller, Managing Director

Email: oilex@oilex.com.au

Tel: +61 8 9485 3200

Australia

RFC Ambrian Limited

Nominated Adviser and AIM Broker

Samantha Harrison

Email: samantha.harrison@rfcambrian.com

Tel: +44 203 440 6800

UK

 

Tavistock Communications

Ed Portman

Email: eportman@tavistock.co.uk

Tel: +44 207 920 3150

UK

 

 

 

This information is provided by RNS
The company news service from the London Stock Exchange
 
END
 
 
MSCGLGDIBUDBGSB
Date   Source Headline
24th Aug 20177:00 amRNSCore Analysis and Review Confirms Cambay Potential
7th Aug 20177:00 amRNSExpiry of Unlisted Options
31st Jul 20177:49 amRNSSecurities Trading Policy
31st Jul 20177:00 amRNSQuarterly Report 30 June 2017
19th Jun 20177:00 amRNSPartial Receipt of Outstanding Cash Calls
19th Jun 20177:00 amRNSTrading Halt
6th Jun 20177:10 amRNSCambay PSC Workover and Project Update
30th May 20177:59 amRNSAppendix 3X P Haywood
30th May 20177:47 amRNSOilex Appoints New UK Based Non-Executive Director
23rd May 20177:00 amRNSCambay Production Update - C-73 and C-77
22nd May 20179:31 amRNSTranche 2 Unlisted Options Issued
12th May 201710:10 amRNSBhandut and Cambay Updates
10th May 20179:57 amRNSAppendix 3B Issue of Shares & Section 708 Notice
3rd May 20177:00 amRNSResults of 3 May 2017 General Meeting
28th Apr 20179:31 amRNSQuarterly Report 31 March 2017
28th Apr 20179:20 amRNSMobilisation of Workover Rig at Cambay
21st Apr 20178:19 amRNSChange of ASX Share Registry Address
21st Apr 20177:00 amRNSAward of Key Contracts Cambay-23z Core Analysis
18th Apr 20177:00 amRNSNotice of Change of Substantial Interest
6th Apr 20177:00 amRNSNotice of Change of Substantial Interest
4th Apr 20178:28 amRNSOilex Engagement via Vox Markets
3rd Apr 20177:00 amRNSNotice of General Meeting
31st Mar 20179:16 amRNSAppendix 3B Issue of Shares and Section 708 Notice
31st Mar 20177:00 amRNSOilex Investor Presentation April 2017
24th Mar 20177:00 amRNSAppendix 3B Issue of Shares and Section 708 Notice
17th Mar 20177:08 amRNSAppendix 3B
17th Mar 20177:00 amRNSManaging Director - Contract Extension
17th Mar 20177:00 amRNSAppendix 3Y J Salomon
16th Mar 20177:00 amRNSInterim Report 31 December 2016
16th Mar 20177:00 amRNSReinstatement to Official Quotation
15th Mar 201710:09 amRNSPlacement to Fund Cambay Work Programme
15th Mar 20177:00 amRNSSuspension of Trading on ASX
13th Mar 20177:00 amRNSTrading Halt
1st Mar 20177:00 amRNSCancellation of Unlisted Options
23rd Feb 20177:57 amRNSOilex Appoints New Chairman
13th Feb 20177:00 amRNSCancellation of Unlisted Options
30th Jan 20179:18 amRNSQuarterly Report 31 December 2016
30th Jan 20179:09 amRNSOilex Investor Presentation Jan Feb 2017
4th Jan 20177:00 amRNSCancellation of Unlisted Options
19th Dec 20167:00 amRNSAppendix 3B - Issue of Retention Rights
19th Dec 20167:00 amRNSAppendix 3Y J Salomon
13th Dec 20168:23 amRNSOilex tenders for 55% interest in Cambay PSC
6th Dec 20167:00 amRNSExpiry of Unlisted Options
24th Nov 20167:00 amRNSAppendix 3Y J Salomon
24th Nov 20167:00 amRNSAppendix 3B
23rd Nov 20167:00 amRNSWaiver of ASX Listing Rule 10.13.5
23rd Nov 20167:00 amRNSResults of Annual General Meeting 23 November 2016
23rd Nov 20167:00 amRNSChairman's Address to Shareholders
14th Nov 20167:00 amRNSExpiry of Unlisted Options
7th Nov 20167:00 amRNSExpiry of Unlisted Options

Due to London Stock Exchange licensing terms, we stipulate that you must be a private investor. We apologise for the inconvenience.

To access our Live RNS you must confirm you are a private investor by using the button below.