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Keywords: wellbore
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Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174189-MS
...Abstract Abstract Formation Damage caused during drilling can have a significant impact on the near wellbore and the ability for a well to deliver to design. The reduction in near wellbore permeability is generally interpreted as a negative and the damage is normally minimised through careful...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174196-MS
... Based on the previous observation, choke management strategies should be aimed towards minimizing the near-wellbore pressure gradients induced by the applied overall drawdown. This notion has also been adopted by Geilikman et al. (2005) who studied the effect of bean-up procedures on fines...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174191-MS
... wellbore area; especially for wells with formation waters containing a high concentration of barium ions. Different ion monitoring and analysis methods are traditionally used to calculate the percentage of seawater breakthrough, with varying levels of accuracy and reliability. This presents a significant...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174177-MS
...Abstract Abstract Formation damages caused by the invasion of drilling and workover fluids into the near wellbore area can become a major threat for production. Over the last decades, several techniques have been developed to mitigate this issue in terms of mud cake removal and wellbore...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174188-MS
... should be to a more accurate description and prediction of well performance. Skin Factor Parameters Geometric Skin This term describes a number of parameters related to the geometry of the wellbore and the completion and their relationship to the geometry of the reservoir. Geometric skin...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174173-MS
... (estimated to be 4 to 6 hours from surface), there will be sufficient time to position the guns at depth before detonation, and sufficient time to retrieve the gun string from the wellbore in the event of a misfire. All perforation flow lab tests in the APFL were run at Hejre pressures, with overburden...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174236-MS
... Reservoir fluids PVT properties Routine core analysis (RCA) and relative permeability data Estimated Wellbore drainage radius Estimated Reservoir Pressure Estimated Pwf or drawdown Natural fracture system definition or range of uncertainty The estimated effective fracture width and range...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174217-MS
... term contact of formate and the near wellbore, CFD modelling was performed to assess the effect of gravity sinkage versus formate contact with the near wellbore. Based on this a coreflooding study was initiated to identify any specific formation damage mechanisms resulting from long term exposure...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174237-MS
... Phase trapping happens when water or oil -based drilling mud filtrates enter into the near-wellbore region because of leakoff during overbalanced drilling operations or due to spontaneous imbibition in some situations during underbalanced drilling. Phase trapping can result in permanent...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174270-MS
... that the dominant wormholes are expected to grow symmetrically, and that the region dominated by each wormhole is approximately 90° around the wellbore. To simulate squeeze treatments in an acid stimulated well with a corresponding wormhole pattern, as described above, a reservoir simulator is used. The reservoir...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174244-MS
... ➢ Incompressible single-phase fluid is considered ➢ Steady state ➢ Laminar flow ➢ Cylindrical formation ➢ Neglect gravity effects Abstract Abstract Perforated completions have become a standard process of well completions, where the wellbore is connected...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174246-MS
.... Unlike cement, the SPCS slurry left inside the wellbore does not have to be drilled out or milled out, but can be easily jetted out with CT or jointed pipe. Last but not least, the SPCS formulation can be tailored and optimized to wellbore completion (i.e., casedhole and perforated, openhole, openhole...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174278-MS
... the stipulated test period. A high skin damage factor with an abnormally-high storage coefficient (e.g., 1 to 3 bbl/psi, which is one or two orders of magnitude larger than the typical values in regular wellbores) have to be introduced to the well test models to match the pressure behavior from these wells...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174221-MS
... The pressure transient periods are routinely used by reservoir engineers to perform pressure transient analysis (PTA) to derive reservoir properties such as permeability, reservoir boundaries, dual porosity characteristics, hydraulic fracture effective length etc. In PTA the wellbore storage...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165090-MS
... will be dictated by reservoir and wellbore conditions, such as reservoir depth, length of the interval to be treated, bottomhole temperature (BHT), injection rate, and shut-in time program, among others. The PFS system is insensitive to formation fluids, lithology, and/or heavy metals. Another advantage of the PFS...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165091-MS
... of reservoirs, wellbore completions, and water production mechanisms, among others. In addition to water control, the application of this HRPM system has been extended to hydraulic fracturing, acid stimulation, and overbalanced workover interventions. Case histories are examined. Often, RPM treatments...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165097-MS
... wells were selected in the same area and geologic setting. The first was completed using standard processes for this asset. A dipole sonic log was run in the horizontal wellbore before beginning the completion. Results from the sonic log were compared to the fracture treatments after the fact...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165121-MS
... Installation and Operations drilling operation horizontal section correspond stimulation treatment Exhibition complex reservoir Upstream Oil & Gas intervention preflush fluid placement placement wellbore evolution Directional Drilling carbonate reservoir Effectiveness Foect coiled tubing...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165174-MS
... intervals when deemed necessary without wellbore restrictions. Flowback of formation solid particulates during well production often results in the following: Plugging, choking, or erosion of sand-control screens. Damage to downhole equipment. Frequent workovers. Loss of production...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-143595-MS
... unconventional reservoir jim bray directional drilling completion three-dimensional shear data brittleness dipole sonic society of petroleum engineers extension fracture treatment reservoir rock mechanical property unconventional reservoir perforation wellbore Introduction Unconventional...

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