Refracture Optimization: Results & Technology Showcase 2015

REFRACTURING RESULTS & TECHNOLOGY SHOWCASE

Thought leaders across operators, service companies and research institutes will be coming together to showcase results from latest pilot tests. All presentations will be unbiased, learning-focused and results-driven to provide attendees with as much information as possible on recent refracturing efforts.

8.40 Chair's Opening Remarks

Day Chaired By: Phil Winner, Owner/Principal, Domestic Energy Resources LLC 

MARCELLUS SUCCESS STORY

8.50 Presenting A Case Study Of Successful Refractures In The Marcellus

  • Understanding the early completions design: long stage sections with few entry points
  • Using a new diversion process which allowed for reduced cluster spacing to restimulate seven wells
  • Comparing IP rates to understand how post-completion production measured up against pre-completion production
  • Reviewing the resultant economics to understand the extent of the improvement that was made

Austin Blake, Completions Engineer, CONSOL Energy

9.20 Question & Answer Session

WELL SELECTION CRITERIA: WHAT MAKES A WELL A GOOD CANDIDATE FOR REFRACTURING?

EXAMINING THE PARAMETERS ASSOCIATED WITH THE SUCCESSES AND FAILURES OF DIFFERENT REFRACTURE OPERATIONS TO UNDERSTAND WHAT MAKES A WELL A GOOD CANDIDATE FOR REFRACTURING

WELL SELECTION CRITERIA: INITIAL COMPLETIONS DESIGN

9.30 What Makes A Well A Good Candidate From A Completions Standpoint? Examining The Original Completions Criteria Required For A Successful Refracture

Drawing conclusions from both successful and unsuccessful refractures to identify the completions specifications that lend a well to more effective refracture results:

  • Frac spacing: understanding if wells with both wider perforation clusters and open hole fractures make better candidates
  • Proppants: looking at whether or not refracture candidates are limited by original proppant volumes - do you pick wells where not enough proppant was pumped in the original completion?
  • Fluids: discussing if type and volume of fluid system used in initial completion effects the effectiveness of the refracture
  • Casing: examining whether or not refracture possibilities are limited by the size of the casing, casing integrity or isolation integrity
  • Well interventions: understanding if previous well interventions that have occurred need to be factored into the well selection process

Tim Leshchyshyn, Leader, President, FracKnowledge

10.00 Question & Answer Session

10.10 Refracturing Technology Briefing Presented By: Neil Stegent, Tech Manager-Fracturing, Pinnache-Halliburton

10.20 Morning Refreshments In Exhibition Showcase Area

WELL SELECTION CRITERIA: RESERVOIR CHARACTERISTICS

10.50 What Makes A Well A Good Candidate From A Reservoir Standpoint? Understanding How Geological Parameters Impact Refracture Success

  • Pressure: understanding the pressure requirements for a successful refracture to evaluate a reservoir's ability to withstand the pressures involved with refracturing
  • Remaining recoverable reserves: establishing the remaining reserves in place to determine the reservoirs ultimate recovery potential
  • Stress Orientation and fractures: understanding the downhole stress profiles and fracture distributions to determine how this will infer refracture design
  • TOC and saturations: assessing what TOC and saturation levels make a reservoir a good candidate for economic production through refracturing

Nabila Larsen, Advisor Completion & Stimulation - Unconventional Resources, BNK Petroleum

11.20 Question & Answer Session

GUIDELINES FOR ECONOMICAL REFRACTURE PROJECTS

11.30 Analyzing A Woodford Refrac Program Case Study To Streamline Guidlines For Ensuring Refrac Programs Remain Economically Viable

  • Evaluating pre-Refrac and post-refrac production rates to identify the impact of refracturing in production outcomes
  • Analyzing ineffective fracture stages from the original completion to determine its impact on refracturing results
  • Correlatng frac duration and refracture treatment costs to determine cost/operational performance

Samuel W. French, Senior Reservoir Engineer, Eagle Ford Shale Resource Progression, Lower 48 Onshore, BP

11.40 Question & Answers

ECONOMIC EVALUATIONS PANEL DISCUSSION

11.45 Providing A Cost-Benefit Analysis Of Potential Recovery Vs. Cost Of Refracturing To Determine Whether Refracturing Is A More Economical Alternative To Drilling A New Well

  • Assessing the cost of the refracture as a percentage of the original well cost to determine if the additional recoverable oil/gas you could potentially outweigh the cost
  • Reviewing a cost-benefit analysis that is being done to determine the point at which the refracture crosses the economic threshold and starts to become profitable
  • Evaluating total production gain vs. total production lost from downtime required to shut the well in for restimulation
  • Understanding when in a well's life are you likely to get the highest payback from your refracture to determine how length of time online impacts economics of the refracture
  • Examining where oil and gas prices and service costs need to be in order to make refracturing a feasible option

Moderator: Phil Winner, Owner/Principal, Domestic Energy Resources LLC

Panelist: Samuel W. French, Senior Reservoir Engineer, Eagle Ford Shale Resource Progression, Lower 48 Onshore, BP

Panelist: Neil Stegent, Tech Manager - Fracturing, Pinnacle-Halliburton

Panelist: Tim Leshchyshyn, Leader - Unconventional Resources & Frac Technology, Alberta Innovates

Panellist: Timothy Smith, President & CIO, Petro Lucrum

12.15 Lunch In Exhibition Showcase Area

POST-REFRACTURING DIAGNOSTICS

IDENTIFYING PROCESSES FOR ANALYZING POST-REFRACTURING DIAGNOSTICS TO ENABLE AN OPERATOR TO JUDGE THE EFFECTIVENESS OF A REFRACTURE

1.15 Understanding How Chemical Tracers Are Used To Evaluate Stimulated Rock Production And Monitor Well Performance

Case study: restimulation project (huff 'n puff on a mature fractured well)

  • Understanding the application of chemical tracers
  • Examining how chemical tracers are designed to perform within the reservoir
  • Providing an analysis and reporting of stage production

Richard Abowd, Technical Advisor - Petroleum Engineer, Tracerco

1.35 Question & Answer Session

REFRACTURING TOOLS: APPLICATION & RESULTS

UNDERSTANDING HOW TO EXECUTE AN EFFECTIVE REFRACTURE: ANALYZING PRODUCTION RESULTS FROM THE IMPLEMENTATION OF DIFFERENT REFRACTURING TOOLS TO DETERMINE WHAT HAS BEEN SUCCESSFUL AND WHAT HAS NOT

ZONE ISOLATION

1.40 Analyzing The Operational Steps Taken To Implement An Isolated Refrac And The Results Seen From The Appraisal Process

  • Assessing Wellbore integrity through review of inspection tools: looking at the benefits and limitations of current tools to understand how results may limit stimulation parameters
  • Assessing Zonal integrity -refract assessment between opnehole vs. cemented liner: pressure testing methods, diverting agents, swellable packers vs.  hydraulic
  • Examining Stimulation Tool limitations: Plugs and Cup tools on both coil and jointed pipe
  • Exploring alternative methods to coiled tubing that have demonstrated success in isolating and refraccing selective intervals

Andrew McMurray, Business Development Engineer, Step Energy Services

2.10 Question & Answer Session

2.20 Coiled Tubing Technology Briefing Presented By Brett Fears, Thru Tubing Solutions

2.30 Afternoon Refreshments In Exhibition Showcase Area

COILED TUBING CASE STUDY

3.00 Presenting A Technique For Multistage Coiled Tubing Annular Fracturing: Mississippi Lime, Woodford and Cherry Canyon Case Studies

  • Using sand laden fluid to perforate tubulars to access the formation or gain circulation
  • Running through the perforation process and rock geometry
  • Understanding the success ZIPP Completion has had for effective zone isolation to date
  • Assessing the results seen from case studies in the Mississippi Lime, Woodford and Cherry Canyon plays

Brett Fears, Thru Tubing Solutions

3.30 Question & Answer Session

DIVERTING AGENTS

3.40 Examining The Performance Of Diverting Agents In Refracturing Operations In Horizontal Wells

  • Understanding how different chemical and mechanical divergents work when re-stimulating the entire wellbore
  • Analyzing where the diverting agents go for maximum impact
  • Identifying the most desireable properties of diverting agents for enhanced performance
  • Examining how much diverting agent should be used in a refracture operation
  • Discussing which tools need to be used to monitor the effectiveness of the divergents real time
  • Using post refrac analysis to assess the performance of the diverting agent

Mukul Sharma, Professor and W. A. "Tex" Moncrief, Jr. Centennial Chair in Petroleum, Geosystems and Chemical Engineering, University Of Texas At Austin

4.10 Question & Answer Session

4.20-5.20 Drinks Reception At The Exhibition Showcase Area

Speaker

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