Exporting USA Percussion Tools and Techniques to Australia: Underbalanced Hammer Drilling Significantly Increases ROP On First Attempt Drilling Ultra-Hard/Abrasive Formations
- Clint Rogers (Smith Bits a Schlumberger Company) | Reza Jangani (Smith Bits a Schlumberger Company) | Angelo Spedale (Smith Bits a Schlumberger Company) | Sagar Sadawarte (Smith Bits a Schlumberger Company)
- Document ID
- Society of Petroleum Engineers
- SPE Asia Pacific Unconventional Resources Conference and Exhibition, 9-11 November, Brisbane, Australia
- Publication Date
- Document Type
- Conference Paper
- 2015. Society of Petroleum Engineers
- 1.10 Drilling Equipment, 1.5 Drill Bits, 1.5 Drill Bits, 1.10.1 Drill string components and drilling tools (tubulars, jars, subs, stabilisers, reamers, etc), 1.7.1 Underbalanced Drilling, 4.6 Natural Gas, 1.6 Drilling Operations, 1.6.1 Drilling Operation Management
- air drilling hammer percussion, Reducing NPT by Increasing ROP, air mist drilling hammers hammer bit percussion, Underbalanced Drilling Systems
- 1 in the last 30 days
- 146 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 9.50|
|SPE Non-Member Price:||USD 28.00|
The Mereenie development project is targeting oil and evaluating natural gas reservoirs in the lightly drilled Amadeus Basin. In 2012, an operating company started searching for methods to improve rate of penetration (ROP) drilling the 8¾? vertical hole section through the difficult Stairway and Pacoota sandstone formations. The lithology consists of very abrasive and hard siltstone/sandstone with UCS up to over 30,000 psi. The hole section starts at 500 m and generally requires 700 m of total wellbore to reach KOP at 1200 m. The section has historically been drilled with PDC and Roller Cone bits with mud as the circulating medium. Both types of BHAs produced unacceptably slow ROP and required multiple trips to reach TD. The operator required a new approach.
To accomplish the objective, the operator wanted to switch from mud to underbalanced drilling using an air percussion BHA equipped with a hammer bit. However, an analysis using a well records database showed that only short (10–30m) shallow surface intervals had been drilled in Australia with percussion air hammers mostly in mining applications in the 1980–90's.
To increase the chance for early success, the operator wanted to import the latest air hammer tools and drilling techniques from North America. The provider suggested taking lessons learned from the Northeast USA where air hammer drilling plays a major role in developing oil and gas reserves in the region. The two applications are similar with regards to formation characteristics and the drilling team concluded the provider's downhole tool technology, service culture and experience/expertise would be integral to project success. In Q4 2013 the provider drilled the fastest and deepest percussion air hammer run in Australia's Oil and Gas history at 24 m/hr, 700% faster than the previous ROP achieved with PDC or Roller Cone.
|File Size||4 MB||Number of Pages||9|