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Keywords: stimulation
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Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 22–25, 2021
Paper Number: SPE-204412-MS
... plug failure frequency, mechanisms of failure, and the resulting impact to stimulation efficiency. These acoustic tools helped to uncover the causes and explore possible solutions to failing plugs. This paper presents aggregate data encompassing casing wall loss at over 2700 plug locations and presents...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199819-MS
... conventional stimulation trials were carried out with no sustained success. The well was selected for an advanced acid stimulation technique to improve the dumping rate by using the concept of Oscillating Fluid Injection. This process achieves deeper treatment penetration and more uniform fluid distribution...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199789-MS
... lowered the operator's operation costs by USD 100,000 and operations time by 36 hr on average. Completion Installation and Operations Coiled tubing operations Upstream Oil & Gas stimulation millout simultaneous service diagnostic service fiber diagnostic service reduce operational cost...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199851-MS
... matrix stimulation. Both MFIV shifting and matrix stimulation are performed on the same CT run. A mechanical collapsible shifting tool and CT tractor are utilized together. The MFIV mechanically controlled isolation valve is a bi-directional barrier valve that isolates reservoir fluids in the lower...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199853-MS
... Abstract Some exploration well testing operations are executed by performing multiple runs in hole using slick line and Coiled Tubing (CT). A new technology has been developed that combines many of these operations, including contingency stimulation activities into one run. The Electrical...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199807-MS
... current and subsequent completions, since this will have a significant impact on the future life of the entire field. A thorough analysis should include understanding zonal isolation before and after acid stimulation, fluid distribution inside the compartments during the treatment, and confirmation of...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199871-MS
... On the first well 2" CT was chosen. An accessibility run was performed to determine the percentage of Open Hole (OH) reached prior to preparing stimulation fluids. CT initially locked up at 11,861 ft MD. Next, the CT was Pulled-Out-of-Hole, POOH, to 11,547 ft MD and the tractor was...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199818-MS
... Coiled tubing operations investment stimulation conventional ct owha riser reeler consideration hydraulic access hydraulic intervention Scenario production enhancement Efficiency assessment application open-water hydraulic access Upstream Oil & Gas intervention drilling equipment...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199812-MS
... with the polymer deposition taking place in the wellbore particularly Mangala (undergoing full-field polymer flooding), leading to challenging wellbore cleanup operations. Several methods have been used in the past, both mechanical and chemical to improve the treatment fluids during stimulation. In...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194239-MS
... improves operational safety, efficiency and reliability, whereas downhole measurements help to obtain maximum well productivity by providing real-time downhole wellbore pressure, transient dynamic underbalance and/or overbalance for perforation cleanup and/or well stimulation. The new perforating system...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194263-MS
... to surge into and out of the formation. The extent and duration of these pulses has been observed in surface tests. Case histories of well cleaning and stimulation applications are described. Best practices for operation include squeezing treatment fluids into the formation followed by flow...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194259-MS
... cause complete blockage in the wellbore and need to be treated prior to the matrix stimulation. Therefore, an additional cleanout run was implemented to reduce the friction in the tubing to the end of liner shoe section. This additional run with a high-pressure jetting nozzle (HPJN) combined with the...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194300-MS
...) is critical for achieving field development goals. With well cleanouts and stimulation as the primary scope of work, a CT string was custom-engineered to maximize reach capabilities and injection rates, in well trajectories of up to 4.5:1 MD/TVD ratios that extend up to ~20,000-ft laterals through...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 27–28, 2018
Paper Number: SPE-189906-MS
... CT and WL all the way to target depth. The objective of this article is to evaluate most of the well tractor technology used in logging and stimulation operations. Moreover, the development of a new slim tractor with improved gripping and pulling force with ability to pass through restrictions in...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 21–22, 2017
Paper Number: SPE-184809-MS
... challenges can be addressed by optimizing real-time fluid placement or by manipulating the choke size, among other parameters. A chemical plug can be pumped to isolate the reservoir before commencing descaling interventions, but this process may require stimulation or re-perforation of the reservoir system...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 21–22, 2017
Paper Number: SPE-184760-MS
... monitoring of downhole conditions. Figure 4 Example of profiling results obtained using the CT downhole flow measurement tool during a water injection test performed prior to acid stimulation. Figure 5 Planned acidizing design. Figure 6 Comparison of pre- and post-stimulation...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 21–22, 2017
Paper Number: SPE-184787-MS
... construction and completion prior to switching to a field development stage. One of the prospective options is to implement hydraulic fracturing in low-permeability areas of the Chayandinskoye. A multistage stimulation campaign was executed to test the efficiency of hydraulic fracturing in subhorizontal...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 21–22, 2017
Paper Number: SPE-184753-MS
... three after the second stage of acid treatment, which was bullheaded around the CT by production tubing annulus for increased rates. The lack of a flowmeter installed between the stimulation vessel and the entrance to the well tubing prevented gathering of exact acid invasion volumes. Figure 5...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 21–22, 2017
Paper Number: SPE-184770-MS
... horizontal wells grows, and matrix stimulation of these wells is key for maintaining production levels and improving the draw-down from producing formations. In the subject field, many wells are drilled as mega-reach with measured total depths up to 33,000 ft. The mega-reach represents a significant...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 22–23, 2016
Paper Number: SPE-179099-MS
.... Nitrified 20% HCl 25 gal/ft 3. Foamed Diverter 3 gal/ft 4. Post-flush 5 gal/ft Figure 8 Tractor function test in the well Figure 10 Abrasive cutter drop ball activation Figure 9 Lockup and CT tractoring to TD Figure 11 CT stimulation stages acquisition plot...

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