Dholasan
Project Details
Dholasan field is falling in the Mehsana tectonic block of cambay basin. It is located in the vicinity of major oil and gas-producing fields to the southern flank of Sobhasan anticlinal structure. The field mainly producing from Lynch, Mandhali and Mehsana pay. ONGC has drilled 2 exploratory wells (ND #1 & SD #1). Both the wells are completed as an oil producer from Lynch and Mandhali pay respectively. However, the wells were shut in 1992 mechanical issues beyond repair in the wells. 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.
In 2014-15, JV has drilled two substitute wells SD #1A and ND #1A for SD #1 and ND #1 respectively Currently, GOGL is the sole party comprising the contractor under PSC pursuant to the assignment of PI held by GSPC to GOGL vide PSC amendment executed in August 2021 to this effect. As of date GOGL is the operator for the field with 100% PI.
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 wells during June, 2022. Based on the ELAN inputs, it was found that predominantly water is contributed from thin carbonaceous layers within producing interval 1870-1872m. Accordingly, object VI was isolated by a bridge plug at 1866m. Additional perforations were carried out at the upper part of the interval 1845 to 1851m. Based on the results possibility of installing of artificial lift for the commercial quantity of oil is under active consideration.
As of March 2022, the cumulative production from the field was 31 Mbbl of oil primarily from Mandhali subsidiaries.
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 | |