Downhole Mixing Fracturing Method Using Coiled Tubing Efficiently: Executed in the Eagle Ford Shale

Lindsay, Sharlene Dawn; Flores, Deborah; Ables, Colt

doi:10.2118/153312-ms

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…• "Far-field complexity" and "slug and sweep" can be achieved (Lindsay et al 2012;McNeil and Harbolt 2012). • In the case of unexpected zone abandonment, the next interval can be planned within the vicinity.…”

Section: Hydrajetting Pinpoint Stimulation With Dm Benefitsmentioning

confidence: 99%

“…Hydrajet perforating Pinpoint stimulation technology and its benefits are diverse and known (Lindsay et al 2012). It is all about managing two flow paths in the wellbore, opposed to traditional single flow path bullhead fracturing.…”

Section: Introductionmentioning

confidence: 99%

“…This method involves pumping concentrated sand slurry down the tubing to mix downhole with a high rate clean fluid pumped down the annulus. This creates uniform slurry within 1 ft of the mixing tool (Lindsay et al 2012). The concentration of sand slurry can be manipulated in real-time by adjusting either (or both) of the flow rates.…”

Section: Introductionmentioning

confidence: 99%

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Benefits of Remote Activation and New Downhole Tool for Pinpoint Coiled Tubing Stimulation Technology

Pawar

Hriscu

Brand

2015

Day 2 Wed, March 25, 2015

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The global demand for energy has led to an industry focused on increasing process efficiency with respect to innovative techniques for hydraulic fracturing stimulation. One such innovative process is coiled tubing (CT) deployed pinpoint stimulation. Pinpoint multistage fracturing with hydrajetting perforation technique is a solution that enables fracture placement in virtually an unlimited number of fracturing stages in long lateral sections, with a single trip into the wellbore. The evolution of pinpoint stimulation technology and its benefits have been recognized in many papers published along the years.In some variations of the pinpoint stimulation technique, the bottomhole assembly (BHA) is activated by ball drop and reverse circulation of the ball. This process has been improved with a new generation design of the BHA, which renders the operation capable of being entirely controlled remotely from the surface using movement of the CT string. The ball drop activation is eliminated. This allows real-time, on-demand control of the tool setting. Based on traditional proven pinpoint solutions and adopting this new way of well stimulation, the pinpoint multistage fracturing method has become more efficient. This improved BHA, in conjunction with a proprietary pinpoint stimulation process, can help reduce water consumption on location and horsepower requirements, reduce idle time between fracturing treatments, reduce pump time per stage, and help prevent ball drop difficulties, all without having to make changes to the fracturing spread, equipment, and CT on location.The improved BHA enables hydrajet perforation, hydraulic fracturing using real-time downhole proppant concentration control, and proppant plugs to be set for zonal isolation. Additionally, multicycle sequences can be repeated in long lateral and vertical wells. It also helps assist centralization of the BHA during perforating operations to help maintain appropriate jet standoff distance. This paper presents the development approach of the aforementioned improved BHA, and a means to manipulate it from the surface. Validation during field testing is also outlined.

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Section: Hydrajetting Pinpoint Stimulation With Dm Benefitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Benefits of Remote Activation and New Downhole Tool for Pinpoint Coiled Tubing Stimulation Technology

Pawar

Hriscu

Brand

2015

Day 2 Wed, March 25, 2015

View full text Add to dashboard Cite

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Flow Isolation Tube for Milling and Sand Jet Perforating

Dotson¹,

Farr²,

Tucker³

2012

SPE Eastern Regional Meeting

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Sand jet perforating (SJP) is currently gaining acceptance in unconventional resource plays where horizontal development has shown the need for methods to perforate these formations. This paper examines a new design for a tool assembly that allows fluid to flow through the sand jet perforator while operating a PDM (Positive Displacement Motor) with a mill or cutting tool. In multi-stage fracturing operations where through tubing mills are often used for cleanout runs prior to perforating, the flow isolation tube assembly can be added to the tool string to achieve cleanout in conjunction with perforating in one trip. The design allows an operator to isolate the SJP tool, which is resident in the work string and perforate casing and formation, then restore flow to the PDM to continue operations such as milling or further well cleanoutall in a single trip.Discussion of the assembly design process and laboratory testing results are included as a part of the paper and will analyze the effectiveness of the technology and tools as well as the economic impact of this type of program. Economics includes process costs as well as cost savings from support equipment that is gained by the combination of operations. The program's translation to other shale plays like the Marcellus, Bakken, and Haynesville are also discussed.Shale plays dominate domestic drilling as well as production today and being able to combine completion operations to save both time and money is of interest to all producers. Using the flow isolation tube assembly will save cost and wear for coil tubing units as well as costs for other surface support equipment. Finally, safety is increased and the quality of the perforations is improved with SJP; giving a better perforating job for a lower cost.

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Multipay Well Completion in Argentina: A Versatile Pinpoint Completion Technology Applied through Several Conventional, Tight, and Shale Reservoirs

Bonapace

Kovalenko

Sorenson³

et al. 2017

SPE Latin America and Caribbean Petroleum Engineering Conference

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Many fields in Argentina have multilayer reservoirs that require various stimulation techniques, primarily hydraulic fracturing. A variety of formations and types of reservoirs, such as conventional (mature fields) and unconventional (tight gas and shale), are the main focus in the Golfo San Jorge and Neuquén basin. The hydraulic fractures created in these basins present a variety of conditions and challenges related to depth, well architecture design, bottomhole temperature (BHT), reservoir pressure, and formation permeability. In 2006, a pinpoint completion technique was introduced to help achieve greater efficiency and reduce time and costs associated with completions. This paper presents experiences gained using this technology and proving such versatility in different types of reservoirs. The pinpoint technique, called hydrajet perforating annular-path treatment placement and proppant plugs for diversion (HPAP-PPD), was applied in new wells at different reservoir conditions. The history and evolution of this technique in Argentina was initiated in conventional oil reservoirs (mature fields in Golfo San Jorge) and then was introduced in the Neuquén basin in gas well completions. Throughout the last seven years, this technique has been tested and implemented in tight gas wells. More recently, it was used to improve a completion technique in a shale oil well. This completion method allowed operators to focus treatments in desired zones using specific treatment designs based on reservoir characteristics. Several case histories are presented for different basins, formations, and reservoirs types, highlighting lessons learned and reduced completion time.

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Downhole Mixing Fracturing Method Using Coiled Tubing Efficiently: Executed in the Eagle Ford Shale

Cited by 3 publications

References 3 publications

Benefits of Remote Activation and New Downhole Tool for Pinpoint Coiled Tubing Stimulation Technology

Benefits of Remote Activation and New Downhole Tool for Pinpoint Coiled Tubing Stimulation Technology

Flow Isolation Tube for Milling and Sand Jet Perforating

Multipay Well Completion in Argentina: A Versatile Pinpoint Completion Technology Applied through Several Conventional, Tight, and Shale Reservoirs

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