Extreme Multistage Fracturing Improves Vertical Coverage and Well
Performance in the Lost Hills Field

Hejl, Kieth; Madding, Angela M.; Morea, Micheal; Glatz, Carl; Luna, José D.; Minner, William; Stanley, Gregory A.; Singh, Tony

doi:10.2523/101840-ms

Cited by 19 publications

(8 citation statements)

References 6 publications

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“…A detailed discussion of the initial application of this technology in the Cooper Basin is contained in a paper by Gilbert and Greenstreet 4 . Similar experience has been observed in other areas [5][6] , in which PPF technology has improved fracture coverage and field performance. By controlling the initiation point, the fracture height and length can be better predicted.…”

Section: Figure 3 -Example Of a Blanket Fracturingsupporting

confidence: 80%

Pin-Point Fracturing (PPF) in Challenging Formations

Beatty¹,

McGowen²,

Gilbert³

2007

Proceedings of SPE Hydraulic Fracturing Technology Conference

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Section: Figure 3 -Example Of a Blanket Fracturingsupporting

confidence: 80%

Pin-Point Fracturing (PPF) in Challenging Formations

Beatty¹,

McGowen²,

Gilbert³

2007

Proceedings of SPE Hydraulic Fracturing Technology Conference

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“…2 below, originally presented by Hejl et al 2006. That paper does not present this concept as their analysis.…”

Section: How Important Is "Flow Convergence"mentioning

confidence: 95%

“…In most wells drilled with the knowledge that fracture stimulation will be required, this pressure requirement will not be a problem because fluid pumping friction down the annulus being used will usually be a small additive factor. Hejl et al (2006) presented one of the most complete "Process A versus Process B" papers to be found in recent years, where an operator in the Beldridge Field near Bakersfield, CA implemented the HPAF method (with sand plugs) and nine to 12+ frac stages. Because of significantly lower cost per BOE produced, this method mostly replaced the previously preferred perf-and-plug approach (with three to six frac stages) for the remainder of that drilling project.…”

Section: Bringing Hydrajetting To Vertical Wells In a New Waymentioning

confidence: 99%

Hydrajetting Applications in Horizontal Completions to Improve Hydraulic Fracturing Stimulations and Improve ROI

McDaniel

Surjaatmadja

2009

SPE Eastern Regional Meeting

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This paper reviews applications of hydrajet perforating during the past 6+ years specifically as they apply to horizontal and highly deviated completions for both oil and gas reservoirs. Many benefits to hydraulic fracturing through hydrajetted perfs instead of shape charge perforations will often exist. Also, a key feature to more economic applications has been coupling this process with a method that includes multi-stage fracturing operations. This feature can shorten the completion time needed to achieve multistage frac treatments. During this decade, horizontal wells that need fracture stimulation are being drilled deeper and, especially, with longer lateral sections requiring larger numbers of fracturing stages. This has increasingly challenged the limits of conventional jetting systems and methods, while requiring higher pressure limits for the wellhead, treatment tubing, and pumping equipment.Three primary methods for using hydrajet perforating have been part of the surge of horizontal well applications. Listed in the order of their emergence of significant application during the present decade, they are: hydrajet fracturing (HJF), hydrajet perforating, annulus path fracturing (HPAP), and standalone use of hydrajetted perforating (SHJP) followed by conventional wellbore stimulation and isolation applications.

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“…2), has been used effectively for vertical-well completions and is especially applicable for multi-interval completions (Surjaatmadja et al 2005, Hejl et al 2006). This process is fracture stimulation using coiled-tubing (CT) deployed hydrajetting followed by annular-path pumping of the fracturing treatment, then the use of high-concentration proppant slugs to create proppant plugs for diversion to perform the next stage of hydrajet perforating and fracture stimulation.This method was introduced to overcome the deliverability problem (extensive operational time delays) with the perf and plug pinpoint treatment.…”

Section: Novel Approachmentioning

confidence: 99%

Implementation of PinPoint Fracturing Technique in the Western Egypt Desert

Mohsen¹,

Mohamed²,

Samiee³

et al. 2010

All Days

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In the western desert region of Egypt, previous propped multiple-fracture treatments were performed using conventional methods (i.e., perforate, frac, set mechanical/zone isolation, and repeat cycle). Although the resulting treatment efficiency was satisfactory, other methods were being considered to help reduce cost and improve production performance. Also, it was desired to decrease total operational time, which would further impact economics (rig time, production delay, etc).In an attempt to improve production response, fracturing designs in the El Fadl field in the western desert went from a standard three-stage design up to as much as a six-stage design to more effectively stimulate the pay zones. A careful review of the field and operations suggested possible benefits from implementing the pinpoint method for hydraulic-fracturing treatments. It was, however, not a simple case of just applying a hydraulic-fracturing treatment to every potential zone, but required proper well screening, thorough log analysis, calculating and validating mechanical rock properties, and enhanced 3D fracture modeling to achieve a successful campaign.A pinpoint method for stimulation was implemented to perform multistage jobs at reduced costs. As the stage count per well was increased, production response and economics were improved. Both treatment design and staging design with this fracturing technique continue to be further refined as performance and statistical analysis of previous design changes are completed.This paper discusses a pinpoint method for frac treatment and the methodology applied on a recent well. Differences in job execution that will be discussed include: using a hydrajet perforating mechanism instead of conventional casing-gun perforation, time-consumption reduction, analysis of vertical-fracture coverage per potential zone, and cumulative production response from the different designs tested. This could serve as guidelines for other operators who might be facing similar challenges in the North Africa region and elsewhere.

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Extreme Multistage Fracturing Improves Vertical Coverage and Well Performance in the Lost Hills Field

Abstract: TX 75083-3836, U.S.A., fax 01-972-952-9435.

Cited by 19 publications

References 6 publications

Pin-Point Fracturing (PPF) in Challenging Formations

Pin-Point Fracturing (PPF) in Challenging Formations

Hydrajetting Applications in Horizontal Completions to Improve Hydraulic Fracturing Stimulations and Improve ROI

Implementation of PinPoint Fracturing Technique in the Western Egypt Desert

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