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Seismic Monitoring Well 56-32

This well is the fourth and deepest of a cluster of vertical seismic monitoring wells that are located near the toe of 16A(78)-32. The well was drilled vertically to a total depth of approximately 9,000 feet about 1300 feet north of 58-32.

Well 56-32 will be fully cased (5 ½ inch) and used for deployment of seismic sensors during stimulation experiments. A Silixa DAS fiber optic cable 7500 feet long will be cemented along the outside the casing. During the drilling of 56-32, MSE (Mechanical Specific Energy) calculations and PDC bits will be used to optimize penetration rates as was successfully utilized in the drilling of 16A(78)-32. Below 7500 feet depth, mud hammer bits will be trialed and evaluated for drilling performance.

Update February 8:

Well spudded at 4am.

Update February 9:

Drilled to 380 ft depth.

Update February 10:

Drilled to 3,300 ft depth. The basement contact was crossed at 3,100 ft.

Update February 17:

Drilled to 5,840 ft depth.

Update February 21:

Well reached TD of 9,145 ft depth.

Worth noting: 

This well, as well as the deep, highly deviated 16A(78)-32, was drilled with specially modified polycrystalline diamond composite or PDC bits. These bits proved superior to the tricone bits used in drilling the previous wells.

According to Reed Hycalog, the bit manufacturer, drilling well 56-32 set a record for a bit run of 1208 ft in 53 hours, drilling on average 25 ft/hr in hot, crystalline granite.

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