Recovery of an Oil Producer Severely Damaged by OBM Using an Advanced Barite Dissolver System

Davies, Christopher Jeffrey; Twynam, Allan; Bulgachev, Roman Vladimirovich; Harrington, Ray

doi:10.2118/120762-ms

Cited by 9 publications

(3 citation statements)

References 1 publication

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“…The reservoirs are extremely sensitive to working fluids such as drilling fluids, completion fluids, stimulation fluids, and so on. Therefore, the fines invasion into reservoirs can result in pore throat blockage, and thus create severe formation damage and produce impairment (Davies et al, 2009). As a result, novel workover fluids should be developed to repair the damaged reservoirs.…”

Section: Nanoscale Workover Fluidsmentioning

confidence: 99%

Vital Role of Nanotechnology and Nanomaterials in the Field of Oilfield Chemistry

Yuan

Sun

et al. 2013

All Days

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Nanotechnology has the potential to introduce revolutionary change in the energy industries such as exploration, development and production. Nanotechnology can revolutionalise the additive properties by tuning particle characteristics to meet certain environmental, operational and technical requirements. Nanotechnology produces nanomaterials that are ultra fines in nature, usually smaller than ordinary micro particles and thus has very high specific surface area with enormous area of interactions.Recent research has indicated that nanomaterials have unique properties for a broad range of applications in the field of oilfield chemistry, where fluid loss control, borehole stability, cementing quality of a well, remediation of damaged reservoirs, hydrocarbon recovery efficiency, oilfield wastewater treatment are of interest. This paper presents an extensive literature review of assessing the applications of nanotechnology and nanomaterials in the field of oilfield chemistry, investigating the existing problems in the application of nanomaterials in oilfield chemistry, and evaluating the potential technical and economic benefits that nanotechnology and nanomaterials might provide to petroleum development and production. TX 75083-3836, U.S.A., fax +1-972-952-9435

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Section: Nanoscale Workover Fluidsmentioning

confidence: 99%

Vital Role of Nanotechnology and Nanomaterials in the Field of Oilfield Chemistry

Yuan

Sun

et al. 2013

All Days

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“…The wells are operated with low drawdown (typically less than 20 psi) to minimize water and gas coning. It was possible to achieve this and still produce at high rates because of the high productivity of the wells, which was often between 500 and 1,200 B/D/psi (Davies et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Integrated Surveillance Enhancing Quality of Decisions and Reservoir Description in the Harding Field

Zett¹,

Webster²,

Davies³

et al. 2010

SPE Reservoir Evaluation &Amp; Engineering

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A key factor in managing mature fields is to establish adequate surveillance in each phase of their life. The complexity increases when the field is developed with horizontal wells. Differences in data quality and resolution should be taken into consideration when planning such surveillance. Current uncertainties in Harding field relate to unreliable well conformance data using conventional production logs (PL) and assumptions in the reservoir description, which are subseismic resolution. We describe the learning from a horizontal well in Harding, where appropriate surveillance enhanced reservoir understanding and quality of decision making.Based on the initial understanding from the reservoir model, an insert string well work option was proposed to reduce water cut. Historically in this field, conventional PLs provided unreliable well conformance data in horizontal multiphase flow. To improve the characterization at the well scale, an array PL was deployed for the first time on this field.The flowing results revealed that the insert string solution was inappropriate and would result in lost oil production. The shut-in data identified crossflow between two zones separated by a shale section. In the initial model, this shale was mapped only at local level. Post surveillance, it was remapped on seismic as an extensive baffle having an impact on an area with more mobile oil to recover. There is a potential upside with a new infill target being identified toward the toe of this well.Most of the initial decisions about the insert string were based on seismic and modeling work. The new array PL data brought additional information into the model, increasing confidence in the results. Data resolution at the well level matters and this highlights the need to take more PL measurements to calibrate the seismic response and improve the reservoir model.

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“…The wells are operated with low drawdown's (typically less than 20 psi) to minimize water and gas coning. It was possible to achieve this and still produce at high rates due to the very high productivity of the wells, which was often between 500 and 1,200 blpd/psi [Davies et al, 2009].…”

Section: Introductionmentioning

confidence: 99%

Integrated Surveillance Enhancing Quality of Decisions and Reservoir Description in Harding

Zett¹,

Webster²,

Davies

et al. 2009

All Days

View full text Add to dashboard Cite

A key factor in managing mature fields is to identify adequate surveillance in each phase of its life. The complexity increases when the field is developed with horizontal wells. Differences in data quality and resolution should be taken into consideration when planning such surveillance. Current uncertainties in Harding relate to unreliable well conformance data using conventional production logs and assumptions in the reservoir description which are sub seismic resolution. We describe the learning from a horizontal well in the Harding Field, where appropriate surveillance enhanced reservoir understanding and quality of decision making.Based on the initial understanding from the reservoir model, an insert string well work option was proposed to reduce water cut. Historically in this field, conventional production logging provided unreliable well conformance data in horizontal multiphase flow. To improve the characterization at the well scale, an array production log was deployed for the first time on this field.The flowing results revealed that the insert string solution was inappropriate and would result in lost oil production. The shut in data identified cross flow between two zones separated by a shale section. In the initial model this shale was mapped only at local level. Post surveillance it was remapped on seismic as an extensive baffle having an impact on an area with more mobile oil to recover. There is potential upside with a new infill target being identified towards the toe of this well. Most of the initial decisions about the insert string were based on seismic and modeling work. The new array production log data brought additional information into the model increasing confidence in the results. Data resolution at the well level matters and this highlights the need to take more production log measurements to calibrate the seismic response and improve the reservoir model.

show abstract

Recovery of an Oil Producer Severely Damaged by OBM Using an Advanced Barite Dissolver System

Cited by 9 publications

References 1 publication

Vital Role of Nanotechnology and Nanomaterials in the Field of Oilfield Chemistry

Vital Role of Nanotechnology and Nanomaterials in the Field of Oilfield Chemistry

Integrated Surveillance Enhancing Quality of Decisions and Reservoir Description in the Harding Field

Integrated Surveillance Enhancing Quality of Decisions and Reservoir Description in Harding

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