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Keywords: perforation friction
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Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, February 6–8, 2024
Paper Number: SPE-217824-MS
... estimate downhole EHD accurately? Various recent papers ( Horton 2021 , Watson et al. 2022 , Cramer et al. 2023 ) indicate this may not be the case which would ultimately results in uncertain downhole EHD and thus uncertain designed, initial uneroded perforation frictions based on Eq. 1 ( P perf ~ D...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 31–February 2, 2023
Paper Number: SPE-212366-MS
..., or perforation friction, to be negligibly different for each perforation in the fracturing treatment. Since each perforation experiences essentially the same perforation friction, the result is an even fluid distribution ( Lagrone and Rasmussen 1963 ). The BHTP is comprised of the fracture pressure, tortuosity...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 31–February 2, 2023
Paper Number: SPE-212337-MS
... depends on the volumetric flow rate, Q , through the well ( Moody, 1944 ): The method presented here permits quantification of pipe friction and perforation friction pressure losses, thereby allowing one to determine pressure at the mouth of hydraulic fractures from measurements of pressure...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 31–February 2, 2023
Paper Number: SPE-212345-MS
... informed decisions toward frac design and full field development. Primarily relying on industry-standard pre-fracture Step-Down Tests (SDT) to estimate number of perforation holes open, a variety of strategies and technologies were tested by altering perforation friction, orientation, entry hole diameter...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 31–February 2, 2023
Paper Number: SPE-212329-MS
..., commonly used to estimate the perforation friction loss, contains a dimensionless kinetic energy correction factor, the coefficient of discharge ( C d ). C d is used to correct the ideal rate of discharge ( Q i ) obtained by solving Bernoulli's equation, to the actual rate ( Q ) due to the non-ideal...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, May 4–6, 2021
Paper Number: SPE-204208-MS
... fracturing fluid gamma ray near-wellbore coverage ball sealer proppant tracer fracture proppant distribution fluid distribution standard deviation completion installation and operations upstream oil & gas diagnostic summary perforation efficiency perforation perforation friction rockmse...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, May 4–6, 2021
Paper Number: SPE-204203-MS
... in casing to achieve significant perforation friction pressure during a hydraulic fracturing treatment. Perforation friction establishes a backpressure in the wellbore that helps to allocate flow among multiple perforation intervals or clusters that have differing fracture propagation pressures. Differences...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, May 4–6, 2021
Paper Number: SPE-204178-MS
... During hydraulic fracturing operations, the surface treating pressure (ΔP S ) has several factors including: formation closure pressure (ΔP c ), fluid friction on the casing walls (ΔP µ ), hydrostatic pressure (ΔP h ), perforation friction pressure loss plus pressure loss due to tortuosity (ΔP pf...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, May 4–6, 2021
Paper Number: SPE-204177-MS
..., it does provide a cost-effective and more accurate alternative to estimating cluster efficiency when compared to traditional methods. The result on perforation friction of smaller holes eroding faster than larger holes ( Figure 15 ) suggests that Limited Entry designs with smaller holes will see...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, February 4–6, 2020
Paper Number: SPE-199712-MS
... friction, is calculated using Bernoulli's theorem displayed in Equation 1 below. (1) Perforation Friction (psi) = P p f = Δ P p = 0.237 Q 2 ρ N p 2 D p 4 c d 2        Equation 1 – Bernoulli's Theorem for Pressure Drop across an Orifice P pf...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, February 5–7, 2019
Paper Number: SPE-194360-MS
... the Displacement Discontinuity Method (DDM) and was found to play a smaller role than perforation friction and proppant inertia in most cases. An automated process is developed to optimize plug-and-perf completion design with multiple decision variables using a Genetic Algorithm. Thirteen parameters are optimized...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, February 5–7, 2019
Paper Number: SPE-194334-MS
... reducing treatment cost. One way to control the allocation is to use limited entry perforating. Limited entry is the process of either limiting the number of perforations or reducing the size of the perforation entry-hole to achieve significant perforation friction pressure during a hydraulic fracturing...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, February 5–7, 2019
Paper Number: SPE-194336-MS
...Heel Cluster Bias Limited Entry and Perforation Friction Perforation friction is a main factor in any kind of limited entry design. The main purpose behind limited entry is to increase the pressure differential at the perforations to help overcome any variance in fracture initiation...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 23–25, 2018
Paper Number: SPE-189851-MS
... geometries and deliver a concise report of their dimensions. We discuss the relationship between measured results and stimulation treatments, and how these can be optimised to ultimately improve well productivity and long-term recovery. Wellbore back pressure, or ‘perforation friction’, plays a critical...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 23–25, 2018
Paper Number: SPE-189880-MS
... through the perforations, several authors have documented the recommendation to increase the pump rate during the job to maintain as much perforation friction as is operationally practical ( Lagrone and Rasmussen 1963 , Cramer 1987 , Eberhard and Schlosser 1995 , Somanchi et al. 2016 ). Lagrone...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 24–26, 2017
Paper Number: SPE-184813-MS
... coefficient selection horizontal well perforation friction aj slot perforation perforator nozzle Introduction High Well Head Treating Pressures (WHTP) that occurred during the fracture stimulation of the Middle Barik formation, in the first two horizontal wells (Well H1 and Well H2), was found...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 24–26, 2017
Paper Number: SPE-184834-MS
... The other major change was in treatment execution. Standard Operating Procedure (SOP) was to ramp up and maintain treatment rate at design rate ( Figure 5 ). This results in a declining treatment pressure which is ineffective at maximizing perforation friction. The SOP was changed for the XLE...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, January 24–26, 2017
Paper Number: SPE-184878-MS
... EHD conventional system configuration Completion Installation and Operations penetration perforation friction society of petroleum engineers clearance diameter open perforation conventional charge Introduction Perforating is the most common technique used to provide a flow path...

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