From 100 ft in 4 Days to 4,560 ft in 3 Hours with Extreme Pulse Technology (ExP)
Location: Haynesville, East Texas
Problem: 100 feet of progress in four days of drilling due to 10 lb dehydrated (solidified) drilling mud mixed with debris in the wellbore
Objective: Utilize 2 7/8″ WO string with 2 7/8″ ExP Power Sub with 3 5/8″ rock bit to drill and remove mud and debris from inside the casing utilizing produced water
Procedure: The ExP Power Sub was deployed via 2 7/8″ third-party workover string. An initial pump rate of 0.75 bbls/min was pumped with circulation pressure
When the Solidified mud was encountered at 5,750 ft, the fluid rate was increased to 3 bbls/min which increased the hammer effect of the fluid passing through the exit ports of the bit. After 2 minutes, the rock bit broke through the harden bridge. The WO string was pushed to TD at an average of 25 ft/min. Once the flow-back returns showed less than trace amounts of solids, the operation was complete.
Total Time from RIH to TD: 6 hours 30 minutes
|Result||Mud and debris removed|
|Pre-ExP Power Sub||100 ft in 4 days|
|Post ExP Power Sub||4,560 ft in 3 hours|
|Well TD||10,310 ft|
|ExP Sub||2 7/8″|
|WO Speed||5 to 20 ft/min|
|Circulation PSI||500 to 3,000|
|Fluid Flow Rate||0.75 bbls to 3.5 bbls/min|
Extreme Pulse Technology (ExP) implements multi-flow conditioning patterns through a series of resonating chambers, which create dynamic high and low pressure events during workover (cleanout) operations.
The ExP surge clean out tool can be utilized in oil, gas and water wells for optimal cleaning of the wellbore and near wellbore regions. When utilized for surge clean out of injection, wastewater and disposal wells the ExP will help improve injectivity by breaking and removing debris within the near region. Read more about ExP
Coil Tubing Technology, Inc. (CTT) supplies a full line of enterprise-class, proprietary coiled tubing tools. The core business of the Company is worldwide development and marketing of specialty tools and related innovative technical solutions used with coiled tubing and jointed pipe in the bottomhole assembly for the exploration and production of hydrocarbons.
Since its formation in 1998, CTT has specialized in the design of proprietary tools for the coil tubing industry, concentrating on four categories of tubing application: thru tubing fishing; thru tubing workover and intervention; pipeline clean out; and coil tubing lateral drillout operations.