BHGE HT60 and JamBuster services saved operator $5 million USD
An operator in an exploratory well in Mexico’s northern deepwater region needed to recover core in a low consolidated soft sand formation with minimal geological data available. Additionally, the operator wanted to optimize well program runs that were twice the length typically used in the region, applying a core system never before deployed in the country.
Baker Hughes, a GE company (BHGE) proposed employing the BHGE HT60 Core Barrel System, an advanced fit-for-purpose solution, to capture high-quality core samples. The HT60 has a hole diameter capacity of 12-¼ in. to 17-¼ in., a barrel diameter of 9-½ in., and delivers a 5-¼ in. core sample.
The BHGE team used the HT60 system with a low-invasion PDC core bit with anti-whirl features that help increase sample quality in soft formations by avoiding filtrate invasion of the core.
The coring plan was enhanced with the BHGE JamBuster™ anti-jamming coring system, which used telescoping core barrel sleeves to minimize the effects of core jamming and avoid the costs of unscheduled trips out of hole. BHGE GammaTrak™ wellsite gamma logging was used for scanning core-filled inner barrels to verify that the target formations were achieved.
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