In 2017

Indian exploration firm Oil and Natural Gas Corporation’s (ONGC) overseas unit ONGC Videsh has made a significant discovery of oil in the CPO-5 onshore block in the Llanos Basin, Colombia.

The company spudded the Indico-1 well last November. The well encountered Lower Sands (LS-3) of Une Formation (Cretaceous) at a depth of 9833ft (MD). It was found to be oil bearing.

In a statement, OVL said: “The well was successfully logged and found to have 284ft of gross thickness and 241ft net pay, single hydrodynamically connected reservoir with no indication of OWC.

“A 40ft interval of the upper part of LS-3 reservoir was perforated and completed for production in self-flow. During the test, the well flowed at a self-flow rate of approximately 4,000bopd at bean size 40/64in and THP of 241psi with oil of 35.9° API, BS&W – 0.3/0.4% and negligible gas.”

“The well was successfully logged and found to have 284ft of gross thickness and 241ft net pay, single hydrodynamically connected reservoir with no indication of OWC.”

According to OVL, the well is currently under short-term testing with multi-bean study for additional evaluation.

This is the second oil discovery in the CPO-5 block. In 2017, the company discovered commercial oil of 40° API in LS-3 sands in the well Mariposa-1, which is located 6.5km from Indico-1.

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The latest discovery confirms the continuation of the same play.

OVL is now planning to drill further exploratory wells to exploit the Cretaceous clastic corridor in the near future. The company also noted that it will acquire additional 3D Seismic data to map more drillable prospects in the other sectors of the block.

The company is the operator of the block with a 70% interest. The remaining 30% is owned by Petrodorado South America (PDSA).

In Colombia, OVL holds participating interest in six exploratory blocks. The firm also owns a 50% interest in Mansarovar Energy Colombia (MECL), a joint venture with Chinese oil company Sinopec. MECL has interests in producing fields in Colombia.