5th Annual Sucker Rod Pumping WorkshopWorkshop

Wyndham Hotel, Dallas, TexasSeptember 15 – 18 2009September 15 – 18, 2009

A t & R li bl R d C tiAccurate & Reliable Rod Connections

St C dSteve ConquergoodDavid LordK E S i IKey Energy Services Inc.

An Industry Issuey

• API – for optimum sucker rod performance … all of the joints in a string of rods shall be made up to a given preload stress level in order to prevent separation between the pin shoulder and the coupling face during the pumping cycle1

• Yates Petroleum “Over the last two years (2000-2001) sucker rod connections accounted for 53% of rod failures”2

• From lubrication to inconsistent tong calibration the majority ofFrom lubrication to inconsistent tong calibration, the majority of coupling failures are the result of fatigue damage – which is the direct result of improper joint makeup

• In deep wells deviated wells and high rod load wells the• In deep wells, deviated wells, and high rod load wells, the proportion of connection failures may even be higher

SmartTong℠ ‐ Overviewg

• A fully automated rod connection service

• Significantly improves well profitability (increased mean time

between connection failures)

• Provides reliable, long term connection performance

– Controls the CD to within manufacturers’ or API specificationsControls the CD to within manufacturers or API specifications– Every connection is controlled, not intermittent– Reports the true torque [ft-lb] in each connection – Ensures that proper lubrication and tightness have been achieved

SmartTong℠ ‐ Overview (Continued)g

• Eliminates rod carding required by API 11BR recommendedEliminates rod carding required by API 11BR recommended

practice

• Prevents damage of the rod pins and couplings due to cross• Prevents damage of the rod pins and couplings due to cross

threading, galled or stripped threads, dirt, debris and improper

lubricationlubrication

• Measures and reports on breakout connections while pulling

out of holeout of hole

• Includes computer, electronic controls, rod tong, stand-alone hydraulic power

• End of job report includes results obtained for every connection

Computer & Control Systemp y

• Connection Details• Single / Double• Manufacturer • CD• Size• Grade• New / Rerun

• Torque

Custom Rod Tongg

Hydraulic Power Unity

Connection Process

(1) Start at low pressure & speed(avoids damage if cross threaded)

3 variables are plotted vs. position

(avoids damage if cross threaded)

(2)  Six to ten turns at high speed(maximum efficiency)

(3) Slow to controlled speed (for consistent quality)

(4) Makeup happens between these green bars

7/8” Rod = 9 Turns

Good Makeup Connectionp

(4) Stored power in tong drive train continues rotation and then rebounds

(3) Controller issues stop command,and rod faces come to a stop here.

continues rotation, and then rebounds

Acceptance Range for

Torque(2) Torque rises as rodfaces turn togetherfaces turn together

Acceptance Range for CD

(1) Shoulder point is detected (5) Actual CD Achieved

2009-03-09 16-49-40.bin

Good Breakout Connection

Acceptance Range for

Torque

(1) Controlled pressure rise- Consistent torque measurements

Results - Lubrication

Lubrication Results - SmartTong℠g

Torque Signals Overlaid for Three Different Connections• Blue – correct lubrication• Upper Red – High torque due to under lubrication• Lower Red – Low torque due to over lubricationLower Red Low torque due to over lubrication

Lubrication Results - Conventional Tongg

Set for Equal PressureSet for Equal Pressure

Too Wet – CD will be long

Too Dry – CD will be short

ing a conventional rod tong with fixed pressure set point, variation in lubrication causes C

Results – Material Defects

Reportingp g

Job Report Header

Reportingp g

Connection Results Table

Reportingp g

Connection Results Graph

SmartTong℠ ‐ Conclusiong

• Will significantly improve well profitability, by i i ti b t ti f ilincreasing mean time between connection failures

• Is the only system that can consistently makeup rod connections to manufacturer's or API specificationsconnections to manufacturer s or API specifications

• Every connection is controlled, checked against established limits, and reportedestablished limits, and reported

• For additional information please contact– Steve Conquergood at: steve.conquergood@advmeas.comS C q g q g @– Gary Olliff at: golliff@keyenergy.com

References

1 API Recommended Practice 11BR (August 2008) Section1. API Recommended Practice 11BR (August 2008), Section 10.5, Running and Pulling - To obtain satisfactory results in makeup of rod connections, the joint must be clean, undamaged properly lubricated and have a free running fitundamaged, properly lubricated and have a free running fit to shoulder contact if applied circumferential displacement is to sufficiently preload the joint to prevent shoulder face separation during pumping. During makeup the joint p g p p g g p jshould be observed to determine that the coupling face makes proper contact with the shoulder face. When proper contact is not made, the joint should be broken, cleaned, inspected and re-lubricated

2. Southwestern Petroleum Short Course, “Modified Internal Chamfer Coupling”

Copyrightpy g

Rights to this presentation are owned by the company(ies) and/or author(s) listed on the title page By submitting this presentation toauthor(s) listed on the title page. By submitting this presentation to the Sucker Rod Pumping Workshop, they grant to the Workshop, the Artificial Lift Research and Development Council (ALRDC), and the Southwestern Petroleum Short Course (SWPSC), rights to:

– Display the presentation at the Workshop.– Place it on the www.alrdc.com web site, with access to the site to be as

directed by the Workshop Steering Committee.Pl it CD f di t ib ti d/ l di t d b th W k h– Place it on a CD for distribution and/or sale as directed by the Workshop Steering Committee.

Other use of this presentation is prohibited without the expressed written permission of the author(s). The owner company(ies) and/orwritten permission of the author(s). The owner company(ies) and/or author(s) may publish this material in other journals or magazines if they refer to the Sucker Rod Pumping Workshop where it was first presented.

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DisclaimerThe Artificial Lift Research and Development Council and its officers and trustees, and the Sucker Rod Pumping Workshop Steering Committee members, and their supporting organizations and companies (here-in-after referred to as the Sponsoring Organizations), and the author(s) of this ( g g ) ( )Technical Presentation or Continuing Education Training Course and their company(ies), provide this presentation and/or training material at the Sucker Rod Pumping Workshop "as is" without any warranty of any kind, express or implied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded under any relevant law) and these members and their companies will not be liable for unlawful actions and any losses or damage that may result from use of any presentation as a consequence of anylosses or damage that may result from use of any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained.The views, opinions, and conclusions expressed in these presentations and/or training materials are those of the author and not necessarily those of the Sponsoring Organizations. The author is solely responsible for the content of the materials.The Sponsoring Organizations cannot and do not warrant the accuracy of these documents beyond the source documents, although we do make every attempt to work from authoritative sources. The Sponsoring Organizations provide these presentations and/or training materials as a service. The Sponsoring Organizations make no representations or warranties, express or implied, with respect to the presentations and/or training materials, or any part thereof, including any warrantees of title, non-infringement of copyright or patent rights of others, merchantability, or fitness orof title, non infringement of copyright or patent rights of others, merchantability, or fitness or suitability for any purpose.

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