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Keywords: productivity
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Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174171-MS
... data from some of the initial wells identified channel sands, tighter than expected, yet containing significant GIIP. Wells 7 and 8 of the first phase of drilling were completed using hydraulic fracturing to evaluate the potential for improvement in productivity and drainage from the lower permeability...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174172-MS
...: The operation was successfull, and showed a 330% increase in fluid production and a 415% increase in oil production (as shown in the graph below): Dynamic underbalance is a high-quality method for real-time perforation cleanup. The operation demonstrates that the method can be employed...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174207-MS
... . Modification of the crushed zone radius r c : Abstract In case of hydrocarbon production optimization it is essential to know the relationship between the inflow rate and the performance of a perforated production well. It describes the flow rate at the bottom of the well in function of the applied...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174236-MS
... and 4D. The overriding objective is accurate prediction of well productivity and injectivity which will enable thorough well and completion designs to focus on real production barriers rather than speculation and heresay 2 . In order to simulate flow in to horizontal wells with varying degrees of...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174217-MS
... Abstract Valemon, operated by Statoil, is a HPHT gas/condensate field on the Norwegian Continental Shelf. Production started at the end of 2014 from a development consisting initially of cased & perforated wells. However, during early field development the orginal concept had been for stand...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174276-MS
... There are various techniques currently being used to minimize sand in production fluids that can be generally classified as operational, mechanical, chemical, or a combination of any two [ 1 ] ( Fig. 1 ). The operational method of sand control include limiting well flow to rates and pressure...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174237-MS
... filter element (about 1 cm in depth) in most situations in formations of average permeability & porosity. Normal perforation charges will generally penetrate damage of this type. However, if open-hole completions (horizontal wells) are contemplated, much more significant productivity reductions can...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174213-MS
... present perforating on wireline with dynamic underbalance (DUB) to simultaneously maximize productivity and minimize gunshock. We focus on perforating on wireline with DUB because, when compared with other approaches, perforating with DUB is probably the best method to deliver lower tunnel plugging and...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174272-MS
... campaign for discussion. Field#G is situated in southern part of Cambay Basin and produces from 12 different sand bodies. Sand#3 of this field is tight and fracturing can significantly enhance production from this sand. There was other sand bodies such as Sand#1, Sand#4, Sand#8 & Sand#12 that could...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165082-MS
... al. (2002) quantified fracture-face skin in terms of a proppant number related to the reduced conductivity of the fracture as the result of a dimensionless fracture-face skin, which may vary along the length of the fracture. The resulting dimensionless productivity index of the fracture is...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165088-MS
... had to be deployed in order to achieve sustained productivity. After performing more than 200 fracture treatments in 10 multi-frac horizontals plus 50 vertical wells, several key lessons were capitalized in the field of; Fracture design, including proppant selection and the application of ultra...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165144-MS
... The physical properties of the infill adjustment target beds are usually unfavorable with for production, among them, the tertiary infill adjustment properties are more unfavorable than that of the secondary ones, the dominant permeability of the tertiary infill adjustment target beds is lower...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165123-MS
... Abstract The productivity of highly permeable and unconsolidated sandstone reservoirs is expected to be high; however, the production seldom meets expectation as these reservoirs are more sensitive to the formation damage from the drilling and completion of the well. There are extensive...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165113-MS
... algebraic equations are then solved numerically to render the solution field. The modeling process includes the following basic phases: This phase comprises the following steps: Abstract Gyda is a mature oil development in the Norwegian sector of the North Sea. The first production wells...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165169-MS
... following the decline of their productivity index. The impact was 20,000 bpd production shortfall. This paper describes the investigation process that was conducted to identify the cause of the decline. The process included pressure transient analysis, geochemical analysis, core flooding tests and scale...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165185-MS
... pressure - simulation of CVD experiment. The liquid drop out showed a maximum at a reservoir pressure below 2,000 psia (138 bara). The condensation of liquid hydrocarbons is significantly higher for the well C1 than for the well C3. This is in congruency with the observed productivity decline. The...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165187-MS
... of carbonate layers with thicker (5 to 15 meters) but poorer quality siltstones. Various attempts to enhance productivity on existing wells were unsuccessfully carried out since initial production, including selective or extensive perforation, acid treatments on the carbonate layers, and, in recent...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165152-MS
... sand control Reservoir Characterization Directional Drilling drilling operation flow in porous media interaction force damage rate productivity migration productivity prediction deposition model Fluid Dynamics viscosity gravel layer Modeling & Simulation Upstream Oil & Gas...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-143304-MS
... Shale gas has become an increasingly important source of natural gas in several regions of the world over the past decade. An analyst expects shale gas to supply as much as half the natural gas production in North America by 2020 ( Polczer, 2009 ). Because shales ordinarily have insufficient...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-143997-MS
... model, this is exactly what users of the authors' productivity model do currently, albeit manually. However, some very superficial observations cast significant doubt over this conventional model. Figure 2 shows two perforated Berea sandstone cores (permeability~110mD). Both shots were identical...

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