The First Implementation of Elongated Proppant for Hydraulic Fracturing in Russia

Kayumov, Rifat; Konchenko, Andrey; Nevvonen, Olga; Firsov, Vladislav; Kuznetsov, Maxim; Titov, Ivan Viktorovich; Kaluder, Zdenko

doi:10.2118/160242-ms

Cited by 10 publications

(1 citation statement)

References 13 publications

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“…McDaniel et al 32 reported the first field implementation, proving the possibility of using elongated particles as proppant. The channel fracturing technology with rod‐shaped proppant has been conducted and achieved good performance in a lot of field tests around the world 33‐35 . Jia et al 36 established a mathematical model and concluded that compared with spherical proppants, rod‐shaped proppants have less embedment ratio and greater conductivity.…”

Section: Introductionmentioning

confidence: 99%

Refracturing field tests for enhanced coalbed methane production with gas wettability alteration

Lin

Zhao

et al. 2021

Int J Energy Res

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Summary Gas wettability alteration (GWA) technology has been used for better methane drainage underground. Our previous field tests of underground fracturing demonstrated a large increase in coalbed methane (CBM) production compared with those in the boreholes fractured without GWA treatments. However, the general drainage rate of each fracturing borehole with GWA treatment is not high enough because no proppant was used in the underground fracturing. To this end, field tests of surface refracturing in two CBM wells (Wells A‐2 and 4) were conducted with an innovative fracturing measure with GWA treatments and elongated coal‐like proppants in XJ coal mine, Yangquan, China. The water and CBM production with the novel and the conventional fracturing technologies were compared and analyzed. The field test results showed that the CBM production with the novel refracturing technologies (29 697 and 26 844 m3 for Wells XJ‐2 and 4) is greater than those with conventional refracturing (22 746 m3 for Well XJ‐6) and initial‐fracturing (25 297.4 and 2847.2 m3 for Wells XJ‐2 and 4). The significant increase in CBM production demonstrates that the novel fracturing technology could be applied for enhanced CBM production.

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Section: Introductionmentioning

confidence: 99%

Refracturing field tests for enhanced coalbed methane production with gas wettability alteration

Lin

Zhao

et al. 2021

Int J Energy Res

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Hydraulic Fracturing Optimization Restores Development Prospectives in the Challenging Environment of Rostashinskoe Oilfield, Orenburg Region

et al. 2014

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Orenburg region is a part of the Volga-Urals basin and, because of geological complexity, it poses problems for field development and reservoir stimulation. The Rostashinskoe field is one of the fields of the Pervomaysky group, and it has been under development since 1980. The main producing horizons of the field are Devonian: Afoninsky (DV), Vorobievsky (DIV), and Ardatovsky (DIII) formations. The Pervomaysky reservoir is unique in having very light oil.Oil traps in the Pervomaysky fields are formed by faulting. The entire area of these oilfields is now covered by 3D seismic surveys, which indicate that traps are related to a series of regional faults scattered from east to the west. Apart from the main regional faults, Pervomaisky fields have a large number of smaller low-amplitude faults, both conductive and sealed. The presence of these faults has significantly affected the field development strategy. The DIII formation of Rostashinskoe field is represented by two sandstone sublayers, DIII-1 and DIII-2. Large numbers of faults and pinchout zones have imparted a high degree of formation heterogeneity both vertically and laterally across the field. As a consequence of heterogeneity, Rostashinskoe presents difficulties with proper waterflood and fracturing modelling in the field development cycle. As a result, reserves are being recovered unequally across the field.The first trials of hydraulic fracturing in 2004 were unsuccessful because of high fracturing-treatment pressure, a large number of screenouts, and difficulties with fracture fluid flowback and well kickoff. To investigate flowback problems and fast production decline, detailed core analysis has been performed, including mineralogical composition and core flow testing with fracturing fluid to determine the fluid's influence on core permeability. It was determined that Rostashinskoe cores have clay migration problems and changes in wettability. Based on core analysis data, a new clay stabilizer and surfactant were recommended for fracturing fluid. Optimization of the fracturing fluid has led to significant improvement in final productivity results after fracturing and basically has proven the efficiency of hydraulic fracturing treatments in the Rostashinskoe field. From 2010 to 2013, over 60 fracturing jobs were performed in the Rostashinskoe oilfield. Proper candidate selection, optimized fracturing design, and best practice led to additional oil recovery from the DIII formation.Success of the modified fracturing design has rejuvenated the infill drilling program in the Rostashinskoe oilfield to achieve increased production, reduced decline rate, and better reserves recovery.

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The First Experience of Rod-Shaped Proppant Implementation in Western Siberia Oil Fields

et al. 2015

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The most efficient way of production enhancement is the hydraulic fracturing which has proven efficient in majority of the fields in Western Siberia and over the world. Despite wide stimulation experience in the Siberian region there are still some unresolved issues. One is the proppant flowback, a root cause of well equipment damage and also reduction in conductivity of the fracture itself. One of the ways to prevent the problem is the usage of resin-coated proppant (RCP). However there is a disadvantage of this method - agglomeration of polymeric material reduces fracture conductivity in the near-wellbore area. Since 2013 a pilot campaign with the usage of rod-shaped proppant has started in a region. This unique product has two main advantages over a classical spherical proppant: enhanced conductivity of a proppant pack and inherited proppant flow back prevention. Due to the rod-shaped form of the particles, pack has improved stability. Comparison of conductivity tests for different proppants shows that rod-shaped proppant outperforms conventional ones typically used in the region. This also leads to better fluid and polymer recovery and results in increased effective fracture length, hence in substantial production enhancement. There are 9 oil fields near Langepas a city in Khanty-Mansiysk district. These oil fields are at the latest stage of development: decreasing production rates and recovery of the most part of resources. Drilling has shifted to edge zones of the reservoirs and wells start-up is challenging due to low production rates (small net pays and low values of permeability and porosity). At the moment rod-shaped proppant has been successfully implemented in 4 wells on Jurassic and Achimov formation and the first positive results have been obtained - no proppant flow-backs detected and wells productivity enhanced by 20%. Detailed results of the first project with rod-shaped proppant application in Western Siberia (Russia), including a comprehensive analysis of well production performance, are covered in this paper.

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The First Implementation of Elongated Proppant for Hydraulic Fracturing in Russia

Cited by 10 publications

References 13 publications

Refracturing field tests for enhanced coalbed methane production with gas wettability alteration

Refracturing field tests for enhanced coalbed methane production with gas wettability alteration

Hydraulic Fracturing Optimization Restores Development Prospectives in the Challenging Environment of Rostashinskoe Oilfield, Orenburg Region

The First Experience of Rod-Shaped Proppant Implementation in Western Siberia Oil Fields

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