... with millout extensions or blank bottoms. Today, however, packers are being run with seal bore extensions instead of millout extensions. Packers are being manufactured with more exotic materials and high chrome metals. These materials present a milling challenge -- not only do they create longer milling times...

... of leaving plugs in the well for an extended time period was to remove fluids from the formation faster, avoiding time required to complete the coiled tubing millout and also to understand well productivity earlier. It was found that there was more extensive case history of operators leaving a minimal amount...

... resulting in extensive non-productive time or unplanned wellbore remediation. As lateral lengths progressed across shale basins throughout the Lower-48, HCU technology saw increased opportunity to establish itself in the frac plug millout space. Since that time, HCUs have been utilized across multiple...

... of time. On all the pads, the wells completed using uncemented multistage completion systems had lower CAPEX Quicker completions and easier millouts helped contribute to the lower upfront CAPEX. The uncemented multistage wells also flowed back initially at higher rates. This paper compares a new...

..., including high DLS. During the application of this technique, CT interventions are primarily considered in the event of contingencies, such as screenouts (sand cleanout) and plugs prematurely setting (plug millouts). Even though no completion operation is immune to contingencies and associated costs...

... firing head, 26 ft. (7.9m) of pup joints, one-way flow valve with glass disc to protect firing head from debris, packer millout extension, retrievable hydraulic seal bore packer, and anchored seal assembly with production tube. 2. 3. 4. 5. 6. Run bottom hole assembly and production tubing and accessories...

... pressure and temperature guages and redirect flow into the tailpipe higher up. c. The ability to guide the exit from and retrieval into the tubing string of wireline tools. d. The provision of seal bore and millout extensions as necessary. The overall approach to tailpipe assembly design is depicted...

... was brought in to safely and effectively perform plug millouts and well cleanouts after multistage fracturing operations. Initially, 2 inch CT strings with a simple wall taper shape were an effective and reliable option to complete wells in the initial development stage. However, the need for optimized...

... for use in unconventional resource developments where CT is subjected to extreme well lateral lengths. CASE HISTORY 2.375-in CT Engineered Solution for plug millout and cleanout operations in super lateral wells. Well completions diagrams, surveys, operational practices and CT surface equipment...

... Abstract Research and development of hydraulic fracturing plug materials has shifted to materials that degrade upon exposure to wellbore fluids, thus eliminating the typically necessary post-fracturing millout operations. This paper provides an overview of the field trials and initial...

...&P operations, and they bring an extra level of difficulty when it comes to the applicability of the technique. Millouts and cleanouts with coiled tubing (CT) have for many years been the preferred method to remove frac plugs after stimulation when using the P&P technique. The simplicity...

... Packer, size 200-133. 253 N U"1 ,J EIETRIEVABLE HOOKWALL NIRELINE CONVEYED FIRING HEAD l..tttiH-- OUAD TRANSFER BLOCK OUAD 5 PERFORATING SUNS - 20 SC-iL PACKER RIH N/PERFORATIN6 HOOK-UP Fig. 3 SequenuaJ hookup of 1ystem. PERFORATING W/WIRELINE CONVEYED FIRING HEAD 20 SC-iL PACKER ts MILLOUT...

... of deployment and millout of current plug designs that were being used in the field. Thorough research revealed that several design changes could be employed to increase the reliability of composite frac plug deployment and decrease the time needed to remove the plug and put the well on production...

... NU box, 4” Blank Pipe, 7ft 11.6ppf L80 8rd NU, MMS Screens 4” 180micron 20ft 8rd NU, 4” Blank Pipe 20ft & 7ft, MMS Screens 4” 180micron 2 Jts 20ft, 4” Blank Pipe 2Jts 20ft, Crossover, Millout Extension, 9-5/8” × 6.000 SealBore Packer. The BHA was run to depth on 3-1/2” Drill Pipe to bottom...

... Assembly "SC-2PAH" Packer Liner Hanger 7" Liner Figure 6 - PSI SYSTEM After all zones are stimulated, run final production packer with millout extension, tail pipe and L.T.S.A. Land L.T.S.A. in top of hydraulic set retrievable packer and pressure up tubing to set upper most packer. R.I.H. with coiled...

... SEAL PACKER MILLOUT EXTENSION 41 FLOW COUPLING LANDING NIPPLE SOLENOID VALVE COMPLETION FIG. 4 Wireline Retrievable Solenoid Valve and Landing Nipple Lock Landing Nipple Equalizing Sub (optional) Closing Spring Armature Coil Flow tube Seat Flapper SPE 1 4 00 4 FIG. 5 1985. Society of Petroleum...

... OF LARGER DIAMETER 2.625-IN CT ENGINEERED SOLUTION FOR PLUG MILLOUT AND CLEANOUT OPERATIONS IN PERMIAN SUPER-LATERAL WELLS PRE-JOB ANALYSIS To maximize the efficiency of the operations on these super lateral Permian wells, information from the well operator, service company and CT manufacturer...