General
It has been necessary and/or desirable at times to place a specific volume of fluid at a precise location in a wellbore. This is easily accomplished using wireline because the wireline bailer contains a specific volume which can be located at a precise depth. However, problems exist in wells with high angles, horizontal sections, corkscrewed tubing, and when larger fluid volumes make wireline deployment impractical. Additionally, small cement volumes placed by multiple runs in larger diameters create a series of short individual cement plugs stacked atop one another rather than a single homogenous plug.

The TTS Series 5200 Controlled Volume Displacement System (CVDS) offers a remedy to these problems. The CVDS utilizes a series of polished I.D. tubulars (existing reeled tubing strings and IF threaded pipe strings are also suitable) to deploy a specific volume of fluid. The CVDS design and operating procedures allow for placement of a precise volume of fluid (e.g., cement, plastic, acid) at a specific location in the well without over displacement.

Application

• Installation of a single homogenous cement plug
• Spotting of a controlled volume in a precise interval
• Deployment of large volumes in a single trip
• Deployment of fluid in horizontal or high angle wells
• Deployment in wells with limited wireline deployment options
  

Features/Benefits

• Controlled displacement prevents over displacement, insuring fluids are
  located at the proper interval. They can perform their desired function and not cause irreparable damage in other intervals.
• A single homogenous cement plug eliminates the contamination zones that
  occur atop each dump interval when using multiple wireline bailer runs,
  therefore, yielding a higher integrity plug.
• Specific volume allows specialized pumping operations of expensive treating agents.

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Series 5200 Controlled Volume
Displacement System (CVDS)*
(Patent Pending)

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THRU-TUBING SYSTEMS, INC.
4102 Hwy 90 West, New Iberia LA, 70560
Phone: 337.606.0032 | Fax:337.606.0039
E-Mail: tts@thrutubingsystems.com

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