... Abstract During plug and perf completion, perforation pressure drop is used to encourage a uniform distribution of flow between clusters by overcoming stress shadowing, stress variability, and nonuniform breakdown pressure. However, proppant inertia, gravitational settling, and perforation...

... government coefficient scalogram coefficient normalized cwt scalogram coefficient case 3 perforation united states government reservoir characterization cwt scalogram continuous wavelet transform fracture propagation application continuous wavelet transform scalogram figure 9 Introduction...

... a prescribed perforation friction based on performance drivers like stage length, horsepower available on location, casing specs, etc. A problem arises when designing in this manner – the industry changes its mind constantly as we learn. When a design change occurs, it may be prudent to confirm how systems...

... is sensitive to the sound induced by fluid flow through perforations and can be used to estimate fluid distribution through each cluster of a multiple stage fracture treatment. As perforations erode during fracture pumping, the acoustic signals decay rapidly, and the DAS waterfall plot used in the field may...

... of treated and untreated perforations. Well and treatment design parameters selected for scrutiny included cluster perforation density and the circumferential phase angle of entry holes with respect to elevation. Perforation erosional analysis was performed on each frac stage of the diagnostic wells...

... paraffin remediation particulate successful acid fracturing treatment drillstem testing oilfield chemistry scale remediation stimulation wellbore aop geological subdiscipline fracture asphaltene deposition perforation kuwait Field Description The Greater Burgan oil field is located...

... as cluster efficiency . And given this new challenge, operators began to turn to other completion design parameters such as perforation diameter, the number of perforations in a cluster or stage, perforation friction, etc so as to maximize cluster efficiency. Hereafter the authors of this paper will refer...

... dfit geological subdiscipline longitudinal fracture fiber tortuosity signature pressure transient analysis transverse fracture perforation recharge pipe reservoir characterization injection observation injector closure fracturing technology conference relaxation cement paper...

... hanger, identifies potential fracture-driven interaction (FDI) between neighboring wellbores through casing and liner deformation analysis, and conducts perforation erosion analysis for the initial stimulation proppant placement. This equips operators with insights to tailor the refracture program...

... Abstract Among the efforts to optimize hydraulic fracturing treatments in multi-stage horizontal wells, extreme limited entry (XLE) perforating has evolved as a technique to increase the stage length and reduce the total stage count with no compromise to the well productivity. The frictional...

... of this work are injection fluid intake and fracture propagation extent of each perforation cluster in fractured wells. The spatial resolution of the injection profiling and fracture growth can reach the sub-meter scale (same as the distributed temperature sensing spatial resolution). Compared...

... on the perforations. The bullhead refrac treatment consisted of 52 sand ramps with planned diverter drops after each ramp. Active acoustic pulses were taken at the end of every sand ramp to identify if fluid point of entry was changing along the wellbore as a result of the diverter material. The acoustic pulses...

... Abstract Downhole imaging technology has been widely utilized in recent years to help diagnose proppant distribution during hydraulic fracturing operations. Abrasion leading to entry hole enlargement provides strong evidence of proppant placement into individual perforations, and treatment...

... Abstract The performance and completion efficiency of horizontal multistage hydraulically fractured wells stimulated using the plug-and-perf technique are affected by the uniformity of the multiple perforation cluster treatment. Depending on reservoir heterogeneity, perforation design...

... Abstract Hydraulic fracturing in limited entry (LE) completion designs relies on maintaining a high bottom hole treating pressure (BHTP). LE requires high perforation friction in order to maintain an even distribution of the hydraulic fracturing slurry. As sand exits the perforations...

... Abstract Studies have shown that achieving a consistent perforation hole size in casing (i.e., entry hole) and zero-phase perforation gun orientation led to improved treatment distribution among multiple perforation clusters in plug-and-perf limited entry treatments. In addition to reducing...

..., Colorado. Short sections of casing patches were deployed in 4.5′, 13.5# casing. These sections included unanchored and anchored patch components. One type of each section (anchored and unanchored) was then perforated with a full-size perforating gun, 4 shot each section, 90° phasing. The perforating took...

..., fluid viscosity, proppant size and density, fluid leakoff, fracture height growth, perforation orientation and size, multiple fractures near wellbore, and pre-existing dunes, etc. Field-scale CFD model results show that proppant with wider size distribution provided more favorable placement, as larger...

... Abstract Our goal in this paper is to quantify the impact of proppant settling in the wellbore on the efficiency and distribution of proppant into perforation clusters. This phenomenon has been experimentally studied on the lab scale in the past but no field-scale simulations have been...

... for improvement if "best practices" are applied. These include Extreme Limited Entry (XLE), zero-degree top perforations per cluster, larger diameter expandable liners, and microproppant in the prepad. In our data set, the typical Haynesville refrac completion has very low pressure drops (520 psi pre-erosion...