May 10, 2006


Description

Deployment of an ROP Predictor Tool for Real-Time Bit Optimization Since 1965, Specific Energy principles have been used to predict bit performance and analyze rate of penetration (ROP) and bit efficiency. Factors that create drilling inefficiency include bit dull, bit balling, bottom hole balling/cleaning issues, torque and drag and drillstring vibrations.  These are often evident with high specific energy values. Based on these principles, Chevron has established proprietary relationships for bit-specific coefficient of sliding friction and mechanical efficiency as a function of the rock’s confined compressive strength (CCS).  CVX then uses these relationships to predict reasonable and achievable ROPs with associated bit torque for several bit types, which are most commonly used in our global operations. The effect of Mud weight, blade count and cutter size to the coefficient of sliding friction and efficiency are considered in the ROP predictions. The relationships have proven to be of high value, a globally accurate drilling tool for improving overall bit performance and reducing well costs. Applied real-time, the tool identifies inefficient drilling conditions, provides operations personnel reliable information to make more informed decisions and achieve the best possible performance out of the bit that is in the hole, as well as, quantify the impact of parameter changes. 

Despite concentrated development efforts spent in numerous optimization models and techniques, ultimately their value is either realized or lost in deployment. In an effort to achieve maximum value while rapidly deploying the ROP drilling tool, CVX identified three distinct service strategies dependent on the well complexity and the wellsite resources available. This presentation will describe the deployment process and present case histories of this successful tiered approach including the incremental benefits gained when bit performance prediction/selection modeling was coupled with real time downhole measurements. The limitations and increased data requirements necessary with complicated wellbore geometries will also be presented.

Featured Speakers

Speaker Bobbie Jo Kull & Christine Guerrero
Chevron North America E&P; Bobbie Jo Kull Drilling Engineer on the Rock Mechanics TeamChevron Energy Technology Company (ETC)   Bobbie Jo is a drilling engineer on the Rock Mechanics Team with Chevron and has been working on bit selection and drilling optimization for the last two years.   She obtained ...


Chevron North America E&P

Bobbie Jo Kull

Drilling Engineer on the Rock Mechanics Team
Chevron Energy Technology Company (ETC)

 

Bobbie Jo is a drilling engineer on the Rock Mechanics Team with Chevron and has been working on bit selection and drilling optimization for the last two years.

 

She obtained a BS in Geological Engineering (1998) and a MS in Petroleum Engineering (2001) from Montana Tech. Bobbie Jo has been with Chevron for 4-1/2 years now, working in the Gulf of Mexico (GOM) Deepwater Business unit and at the ETC. Prior to working for Chevron, Bobbie Jo worked for Halliburton Energy Services as an Open Hole Wireline Engineer for two years.

 

 Bobbie J is originally from Montana.

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Christine Guerrero
Drilling Engineer on the Rock Mechanics Team
Chevron Energy Technology Company (ETC)

 

Christine is a drilling engineer on the Rock Mechanics Team who has been working on bit selection and drilling optimization since joining Chevron at the end of 2004.

 

She obtained a BS in Petroleum Engineering from the University of Tulsa in 2000. Prior to working for Chevron, Christine worked for Schlumberger Drilling & Measurements as an LWD Drilling Engineer in the Gulf of Mexico for two years and Precision Energy Services as an LWD Launch Engineer for three years.

 

Christine is originally from Oklahoma.

 

 

Full Description



Organizer

Joe Wallace


Date and Time

Wed, May 10, 2006

11:30 a.m. - 1 p.m.
(GMT-0500) US/Central

Event has ended

If you do not have a full-time job in the oil and gas industry, are a full-time student or Member in Transition (MiT) member, and you do not see a discounted registration fee for students/MiT regarding this event, please contact the GCS manager at spe-gcs@spe.org.


Location

Greenspoint Club

16925 Northchase Drive - 5th Flr
Houston, TX 77060
USA