Operation

Volume lost (m³)

Formation strength (kPa/m)

Lost return when drilling to 2064.5 m with RSS BHA. Topped up annulus with water.

110

11.5

Perform wellbore strengthening, squeezed in 29.6 m³ LCM pill.

26.9

11.5

Perform second wellbore strengthening, squeezed in 19.7 m³ LCM pill.

16.2

11.5

Set cement plug from 2117 m to 1917 m.

8.2

11.75

Squeezed in 21 m³ of LCM pill in hesitation mode to record pump off pressure after every 100 litre.

21

11.45

Squeezed in 23.5 m³ of LCM pill in hesitation mode to record pump off pressure after every 100 litre.

23.5

11.59

Squeezed in 38.5 m³ of LCM pill in hesitation mode to record pump off pressure after every 100 litre.

38.5

11.68

Pumped and spot 15 m³ high fluid-loss LCM pill.

12.3

11.64

Pumped 30 m³ engineered LCM pill with 335 kg/m³ concentration and fiber.

20.5

12.01