Paper: New Tools And Concepts Provide Greater Flexibility In Completing Gas Wells

The TUBING CONVEYED Perforating and Well Completion Technique*, which was first introduced by Vann Tool Company in October 1970, has become an accepted and highly desirable method of perforating in southeastern New Mexico and is now being used in wells in West Texas, Oklahoma, Colorado, and Wyoming. Since its inception, many modifications and improvements have been made in the components and mechanics of the system. In this paper, specific attention is devoted to the following: 1. Accurate and exact depth control for inzone Perforating 2. The packer-actuated vent assembly* 3. The mechanical tubing release sub* 4. Safe and effective differential perforating using conventional perforating techniques 5. Communication detection markers for determining the existence of communication between zones.