Case Histories
WWT FlexShoes Save Several Hours per Well on 9-5/8” Casing Run and Drill-Out
Location: Asia
Well Type: Offshore, Directional Well
Objective: Help 9‐5/8in casing run to
bottom quickly and efficiently.
Solution: WWT FlexShoe w/ReamGuide
Results: Smooth casing run to bottom.
WWT Non-Rotating Protectors Reduce Torque in Directional Well
Location: Asia-Pacific
Well Type: Directional
Objective: Torque Reduction
Solution: WWT NRPs
Results: Immediate torque reduction upon installation of WWT NRPs
WWT Non-Rotating Protectors Reduce Torque and Improve ROP
Location: Asia-Pacific
Well Type: Directional
Objective: Torque Reduction
Solution: WWT NRPs
Results: Immediate torque reduction upon installation of WWT NRPs
Canadian Operator Improves Weight Transfer in Horizontal Well
Location: Canada
Well Type: Horizontal Shale
Objective: Improved weight transfer
Solution: WWT SS3 installed mid-span above and through build section
Results: Reduced Buckling and Improved Drilling Performance
WWT FlexShoe helps 5in Casing through Tough Conditions
Location: California
Well Type: Offshore High Angle
Objective: Run Casing in High Inclination Wellbore
Solution: WWT FlexShoe
Results: Casing run to bottom with no significant drag.
WWT Non-Rotating Protectors Reduce Torque in Directional Well
Location: Continental Europe
Well Type: Directional
Objective: Torque Reduction
Solution: WWT NRPs
Results: Immediate torque reduction upon installation of WWT NRPs.
Torque Reduced By 28% After Installing WWT NRPs In Build Section
Location: Delaware Basin (New Mexico)
Well Type: 2 Mile Horizontal
Objective: Torque Reduction
Solution: WWT SS3-500 NRPs
Results: Immediate 28% Torque Reduction
WWT FlexShoe helps 16” Casing Get to Bottom in Deepwater GOM
Location: Gulf of Mexico
Well Type: Deepwater
Objective: Run 16” Casing in High Inclination Wellbore
Solution: WWT FlexShoe
Results: Casing run to bottom.
WWT Coiled Tubing Tractor Sets Record in Extended Reach Well
Kingdom of Saudi Arabia
Well Depth: 28,257 feet
Problem: Lock-up of the 2" coiled tubing occured at 21,980 feet, 6,277 feet short of TD
Solution: The WWT CT Tractor successfully delivered the MPLT tool string to 28,000 feet after navigting 5,780 feet of open hole.
Challenging Horizontal Well with Expected High Torque – Middle East
Location: Middle East
Well Type: Horizontal
Objective: Torque Reduction
Solution: WWT NRPs
Results: Torque Reduced by 38% when WWT NRPs reached recommended area.
Challenging Horizontal Well with Expected Casing Wear
Location: Middle East
Well Type: Horizontal
Objective: Casing Protection
Solution: WWT NRPs
Results: 7” liner protected from KOP to liner shoe throughout bit run.
WWT NRPs Reduce Torque 34% with in a Long Horizontal Well
Location: Middle East
Well Type: Horizontal
Objective: Torque Reduction
Solution: WWT SS3-550 NRPs
Results: 34% Torque Reduction
North Dakota Operator Eliminates Tieback Strings on Pad Wells
Location: North Dakota
Well Type: Horizontal Pad Wells
Objective: Casing Protection Solution: WWT NRPs
Results: USIT Log Proves Minimal Casing Wear with NRPs Installed
WWT Non-Rotating Protectors Prevented Additional Casing Wear
Location: North America
Well Type: Horizontal
Objective: Casing Protection
Solution: WWT NRPs
Results: Recovered Metal Significantly Reduced
WWT Non-Rotating Protectors Reduce Torque in Challenging Well
Location: North America
Well Type: Horizontal
Objective: Torque Reduction
Solution: WWT NRPs
Results: Reduced torque more than 25% @ TD
WWT Non-Rotating Protectors Reduce Torque in Directional Well
Location: North America
Well Type: Directional
Objective: Torque Reduction
Solution: WWT NRPs
Results: Immediate 32% torque reduction upon installation of WWT NRPs
Latin American Operator Protects Casing in Low-ROP Drilling
Location: Latin America
Well Type: S-shaped
Objective: Casing Protection in Low
ROP Drilling
Solution: WWT NRPs
Results: USIT Log Results Indicate
Minimal Casing Wear at NRPs
Latin American Operator Protects Casing in Re-Entry Wells
Location: Latin America
Well Type: Build-and-Hold Re-Entry Sidetrack
Objective: Casing Protection
Solution: WWT NRPs
Results: Minimal Casing Wear at Sidetrack Point
Increased Casing Protection Measurably Reduces Metal Collected
Location: Latin America
Well Type: Directional
Objective: Casing Protection
Solution: NRPs
Benefit: Reduced Metal Collection
WWT FlexShoe with JetGuide Helps 4-1/2in Liner Run Through Window in Oman
Location: Oman
Well Type: Land, Directional Well
Objective: Run 4-1/2in liner though window.
Solution: WWT FlexShoe
Results: Smooth casing run to bottom.
Reduced Torque and Rig Cost due to Non-Rotating Protectors
Location: Permian
Well Type: Horizontal
Objective: Torque Reduction
Solution: WWT SS3‐500 NRPs
Results: Torque and Cost reductions
Torque Reduced By 20% As WWT NRPs Moved Through Build Section
Location: Permian
Well Type: 1 Mile Horizontal
Objective: Drill String Torque Reduction
Solution: WWT SS3-500 NRPs
Results: Immediate 20% Torque Reduction
WWT Non-Rotating Protectors Reduce Torque 34% in Delaware Basin
Location: Delaware Basin (New Mexico)
Well Type: 2 Mile Horizontal
Objective: Torque Reduction
Solution: WWT SS3 NRPs
Results: 34% Torque Reduction
Casing Protection and Heat Checking Prevention due to Non-Rotating Protectors
Location: Gulf of Mexico
Well Type: Deepwater
Objective: Reduce Casing Wear and Heat Checking
Solution: WWT SS-658 NRPs
Results: Mitigated Casing Wear Shown in Log Results
Complete Riser Protection without POOH on a Series of Offshore Wells– Africa
Location: Africa
Well Type: Directional
Objective: Riser protection without POOH
Solution: WWT NRPs in open hole
Results: Riser protected throughout each well in one bit run to TD
WWT NRPs Consistently Provide 25-35% Torque Benefit and Casing Protection on 25+ Wells in SE Asia
Location: Asia
Well Type: Directional
Objective: Torque Reduction and Casing Protection
Solution: WWT NRPs
Results: Lower Torque and Metal Debris using WWT NRPs
S4 Non-Rotating Protector High Temperature Performance
Location: California
Well Type: Geothermal
Objective: Casing Protection
Solution: S4 NRPs
Results: Durability in high temperatures and open hole
S4 NRP Performance in High-Temperature Open Hole
Location: East Texas
Well Type: Vertical
Objective: Long Duration Casing Protection
Solution: S4 NRPs
Results: Reduced casing wear
No Casing Wear Detected After More than 9 Months of Drilling in a HP/HT Well
Location: Latin America
Well Type: Vertical
Objective: Casing Protection
Solution: WWT NRPs
Results: Casing Integrity
WWT Slider-Clamp Low-Friction Cable Protector
Location: California, USA
Well Type: Land, ERD Well
Objective: Run ESP to target depth
Solution: WWT Slider-Clamp
Results: Successful run with no signs of buckling
Extended reach Well Cleanout with WWT 350 Tractor and CT Services Custom String
Region: UAE
Product: WWT ERG 350 Tractor
Well Type: Oil Producer
Service: Wellbore Cleanout
Acid Stimulation with Slim WWT 212 Tractor and CT Services Fiber Optic DTS
Region: KSA
Product: WWT 212 ELG Tractor
Well Type: Oil Producer
Service: Logging and Stimulation in ERD well
No Casing Wear Detected After More than 9 Months of Drilling in a HP/HT Well
Region: Latin America
Product: WWT NRPs
Well Type: Vertical
Objective: Casing Protection
Benefit: Casing Integrity
Fiber Optics CT Logging with WWT 350 ERG Tractor in Mega Extended Reach Well
Region: UAE
Product: WWT 212 ELG Tractor/ CT services Fiber Optic
Objective: RIH Fiber Optic CT to target depth and perform CT Logging
Solutions: WWT 350 ERG Tractor/ Custom String with Fiber Optic PS
Results: CT Fiber was successfully conveyed to TD
Extended Reach Well Cleanout with WWT Extreme Expansion Gripper 350 Tractor
Region: UAE
Product: WWT 350 EEG Tractor with Custom Engineered CT
Well Type: Oil Producer
Objective: Wellbore Cleanout
Results: Open Hole effectively stimulated and well production increased
Extended reach Well Cleanout with WWT 350 Tractor and CT Services Custom String
Region: UAE
Product: WWT 350 EEG Tractor with Custom Engineered CT
Well Type: Oil Producer
Objective: Wellbore Cleanout
Results: Production Liner effectively Cleaned out and Production improvement
Acid Stimulation with Slim WWT 212 Tractor and CT Services Fiber Optic DTS
Region: KSA
Product: WWT 212 ELG Tractor/ CT services Fiber Optic
Well Type: Oil Producer Well
Objective: Logging and Stimulation in ERD well
Results: Open Hole effectively Cleaned out and Acid Stimulated at TD.
WWT Silencer Helps Reduce Vibration and Improve Bit Life
Region: Permian
Product: WWT Silencer
Well Type: Lateral
Objective: Reduce Bit Failures
Benefit: Reduce Vibration, Improve Bit Life
WWT Silencer Helps Reduce Vibration, Resulting in Improved ROP and Reduced Bit Wear while Drilling 2 Mile Lateral
Region: Permian
Product: WWT Silencer
Well Type: Lateral
Objective: Reduce Bit Wear
Benefit: Reduce Vibration, Improve ROP
Extended Reach Well Cleanout with WWT Extreme Expansion Gripper 350 Tractor
Region: UAE
Product: WWT EEG 350 Tractor
Well Type: Oil Producer
Service: Wellbore Cleanout
Fiber Optics CT Logging with WWT 350 ERG Tractor in Mega Extended Reach Well
Region: UAE
Product: WWT ERG 350 Tractor
Well Type: Oil Producer
Service: RIH Fiber Optic CT to target depth and perform CT Logging
Reduced Drill Pipe Wear with WWT Non-Rotating Protectors in Lateral Wells
Region: Permian
Product: NRP
Well Type: Lateral
Service: Reduce Drill Pipe Wear
Complete Riser Protection without POOH on a Series of Offshore Wells - Non-Rotating Protector Provides Greater Than 25% Torque Reduction
Location: Africa
Well Type: Offshore Directional
Solution: Non-Rotating Protector
Results: Reduce Torque
WWT Non-Rotating Protectors
Well Type: Directional
Solution: WWT NRP
Results: Provides Greater Than 25% Torque Reduction
WWT Slider-Clamp Low-Friction Cable Protector
Location: California, USA
Well Type: Land, ERD Well
Objective: Run ESP to target depth
Solution: WWT Slider-Clamp
Results: Successful run with no signs of buckling
Torque Reduction and Casing Protection of S-Shaped Well with Shallow Sidetrack
Location: Middle East
Well Type: S-Shaped
Objective: Torque Reduction & Casing Protection
Solution: WWT HT-550 NRPs
Results: 21% Torque Reduction
S4 NRP Provides Casing Protection in High-Temperature Well
Location: East Texas
Well Type: Vertical
Objective: Casing Protection
Solution: S4 NRPs
Results: Reduced metal returns
S4 NRP Reduces Torque of High-Temperature ERD Well
Location: Middle East
Well Type: Horizontal ERD
Objective: Torque Reduction
Solution: S4-500 & SS3-500 NRPs
Results: 29% Torque Reduction
18% Torque Reduction after Installing WWT Non-Rotating Protectors
Location: Middle East
Well Type: Build-and-Hold Directional
Objective: Torque Reduction
Solution: WWT SS3-500 NRPs
Results: 18% Torque Reduction
Increased Casing Protection Measurably Reduces Metal Collected
Location: Latin America
Well Type: Directional
Objective: Casing Protection
Solution: NRPs
Results: Reduced Metal Collection
NRPs Provide 15% Torque Reduction in 7,000m S-Shaped Well
Location: Latin America
Well Type: S-Shaped
Objective: Torque Reduction & Casing Protection
Solution: WWT NRPs
Results: 15% Torque Reduction and Maintained Casing Integrity
Immediate Torque Reduction of 23% After Installing WWT NRPs in S-Shaped Well
Location: Wyoming
Well Type: S - Shaped
Objective: Torque Reduction
Solution: WWT SS-500 NRPs
Results: Immediate 23% Torque Reduction
Torque Reduced By 14% After Installing WWT NRPs In Lateral Section
Location: Permian
Well Type: 2 Mile Horizontal
Objective: Torque Reduction
Solution: WWT SS3-500 NRPs
Results: Immediate 14% Torque Reduction
Torque Reduced By 20% after Installing WWT NRPs in Open Hole
Location: North America
Well Type: Horizontal
Objective: Torque Reduction
Solution: WWT SS3‐500 NRPs
Results: 20% Torque Reduction
Torque Reduced By 22% After Installing WWT NRPs In Build Section
Location: Permian
Well Type: 2 Mile Horizontal
Objective: Torque Reduction
Solution: WWT SS3-500 NRPs
Results: Immediate 22% Torque Reduction
Non-Rotating Protectors Allow Drilling Ahead with High Riser Deflection
Location: North America
Well Type: Deepwater
Objective: Riser Protection
Solution: WWT SS‐658‐SC NRPs
Results: 43 hours saved while drilling
WWT JetReam Succeeds in the Permian
Location: Texas, USA
Well Type: Land, Horizontal
Well Objective: Run 9-5/8in casing through difficult formations
Solution: WWT JetReam
Results: Successful casing runs
Torque Reduced By 23% After Installing WWT NRPs
Location: Latin America
Well Type: S- Shaped
Objective: Torque Reduction
Solution: WWT SS3-578
Results: 23% Torque Reduction
WWT FlexShoe helps 4 ½” Casing Get to Bottom
Location: Permian Basin (Texas)
Well Type: Horizontal
Objective: Run 4-1/2in casing in through severe dog-legs.
Solution: WWT FlexShoe
Results: Casing run to bottom.
Conveyance of Coiled Tubing Tool Strings
Sakhalin Island, Russia
Job: 0401
Well Depth: 9,300 meters + TMD
2,600 meters + TVD
Problem: The conveyance of tool stings carrying perforating guns and production logging instruments to TMD beyond that of the coiled tubing helical lock-up point.
Solution: The WWT International Inc. Intervention Tractor, developing 8,500 lbs. of force and installed at the end of the coiled tubing, was able to deliver tool strings to the desired location on 5 runs into the well, accumulating over 4,300 meters of walking distance at up to 17 ft. per minute.
GOM Operator Preserves Casing in Deepwater Development Wells
Location: USA Gulf of Mexico
Well Type: Deepwater directional
Objective: Casing Protection and torque reduction
Solution: WWT SS NRPs across KOP
Results: Casing protection, 25% torque Reduction, and additional side tracks
West Texas Operator Experiences Numerous NRP Benefits
Location: West Texas
Well Type: Horizontal
Objective: Reduced torque and casing wear
Solution: WWT SS3 installed across contact-force spike
Results: Significant immediate reduction in metal recovery, torque, and drag
Torque Reduced 25% after Installing SS and SS3 WWT NRPs
Location: Wyoming
Well Type: S – Shaped
Objective: Torque Reduction
Solution: WWT SS-450 & SS3-450 NRPs
Results: 25% Torque Reduction
WWT FlexShoe Guides 5-1/2in Liner Through Open Hole Sidetrack in Wyoming
Location: Wyoming, USA
Well Type: Land, Horizontal Well
Objective: Run 5-1/2in casing into open hole sidetrack on the first attempt.
Solution: WWT FlexShoe ST
Results: Smooth, efficient casing run.
WWT FlexShoe with JetGuide Helps 5-1/2in Casing Quickly Reach Target Depth in Queensland Australia
Location: Queensland, Australia
Well Type: Land, ‘S’ Shape
Objective: Run production casing
though difficult formations.
Solution: WWT FlexShoe w/ JetGuide
Results: Casing run to bottom quickly.
WWT International Inc. 3-3/8-Inch Coiled Tubing Tractor Facilitates Well Cleanout and Bridge Plug Removal
Problem: Operator tried unsuccessfully with competing tractors to perform well cleanout and remove composite bridge plugs to achieve target depth.
Solution: The WWT International CT Tractor was used successfully to convey the coiled tubing beyond lock-up, perform a balldrop and open up a circulation port at TD, and enable milling of composite bridge plugs left over from fracing operations.
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