Allora

Mandhali Subsidiaries
Depth Structure Map on top of Mehsana
Depth Structure Map on top of Chhatral Member

Project Details

The Allora Field is located east of the balol field and 8km North West of Meshana town, Gujarat India. The field was discovered in January 1967 by ONGC through the drilling of exploratory well Al #1 and Further three wells have been drilled by ONGC. Viz. Meshana-7, -16 and Dhijoj-4. All three wells were found dry and abandoned. Subsequently, in the year 2001 field was awarded under Production Sharing Contract and since then GNRL acted as Operator representing Contractor partner with JV partner M/s. Gujarat State Petroleum Corporation Limited

The field was taken over by the JV in 2003, well Al #1 was reactivated in July 2004 and installed an artificial for regular production. The well was hydraulically fractured in April 2013 and achieved peak oil production of 60 BOPD. To date, JV has drilled one deep exploration cum development to probe the Olpad and Fractured trap in the area.

Strategies are put in place to achieve optimum recoveries through the implementation of optimal reservoir technologies. Acquired advanced cased hole pulsar neutron and sonic scanner logs in the inventory of oil wells during June 2022 with an objective to assess the hydrocarbon potential of the current producer and the upside potential like bypassed oil/low resistivity pays in the well which could not have been identified from old (Russian) conventional logs. Also targeted to acquire VP/VS data to support advanced pre-stack seismic inversion studies for field development planning.

Based on the ELAN inputs, hydrocarbon potential in Chhattral (1329 to 1333m), Sobhasan (1440 to 1442.5m) and multiple layers within Mandhali subsidiaries (1980 to 1990m; 1885 to 1895m) have been identified for conventional testing in well Al #1. The current producing zone in the well (2194 to 2208m) is found to have been almost drained and water flooded.

Chhattral member (1329 to 1333m) was perforated and tested during June 2022. Analysis of BH data and activation outcome points to possible losses in the zones perforated earlier and isolated in the current intervention. Cement integrity was also questionable in the well under the subject drilled in 1967.

As of March 2022, the cumulative production from the field was 26 Mbbl of oil primarily from Mandhali pay intervals. Allora field is covered by 3D seismic data and is currently being re-processed by GNRL Oil & Gas Ltd. The survey covering the whole block area is part of a 3D survey that covers 54 km², which is in general of good quality.

Our Works

Oil & Gas Projects

Kanwara

Name of Block Participating Interest Operator Joint Venture Partners Info
Kanawara 30% GNRL Oil & Gas Ltd. GSPC(70%)

North Kathana

Name of Block Participating Interest Operator Joint Venture Partners Info
North Kathana 100% GNRL Oil & Gas Ltd. NA

Allora

Name of Block Participating Interest Operator Joint Venture Partners Info
Allora 100% GNRL Oil & Gas Ltd. NA

Dholasan

Name of Block Participating Interest Operator Joint Venture Partners Info
Dholasan 100% GNRL Oil & Gas Ltd. NA

North Balol

Name of Block Participating Interest Operator Joint Venture Partners Info
North Balol 30% HOEC GSPC(45%) HOEC(25%)

Unawa

Name of Block Participating Interest Operator Joint Venture Partners Info
Unawa 100% GNRL Oil & Gas Ltd. NA