Sensitivity study of horizontal length, offset from water oil contact and withdrawal rate of horizontal well in bottom water drive reservoir

Kumar, Manish; Sharma, Pushpa; Gupta, Dharmendra K.

doi:10.1007/s13202-017-0348-9

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…Even though horizontal well technology is one of the water coning attenuation methods, prediction of water coning (cresting) phenomenon in horizontal wells is a necessity to achieve maximum oil production and/or recovery from the reservoir. To evaluate the potentials of these water coning correlations' predictions in horizontal wells, the basic reservoir and fluid properties data were extracted from the work of Khalili [22] and Kumar et al [25]. These extracted data as presented in Table 1 were used to evaluate the various water coning correlations presented in Tables A1through A3.…”

Section: Horizontal Well Correlations Evaluationmentioning

confidence: 99%

Water Coning Prediction: An Evaluation of Horizontal Well Correlations

Okon¹

2018

EAS

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Oil production from bottom-water drive reservoirs is characterized by water production related problem -water coning. Most times, horizontal wells are used to attenuate this production challenge. That notwithstanding, overtime, depending on the production rate, water coning is also experienced with horizontal wells. Therefore, several correlations have been developed to predict the critical rate, breakthrough time and water-cut performance after breakthrough in horizontal wells. However, limited studies have evaluated the predictions of these developed water coning correlations. Therefore, an evaluation has been made to predict the various water coning correlations in horizontal wells. The obtained results show that the critical rate directly depends on the stand-off to drainage width and horizontal well length to drainage width ratios. Also, it is shown that the breakthrough time directly depends on the horizontal well length to drainage width ratio. Furthermore, the correlations developed from water-cut data for the prediction of post-water behaviour (i.e., water-cut performance) after breakthrough indicate more proficient water-cut profile than the correlations developed from water-oil ratio. Therefore, to prolong the occurrence of water coning in horizontal wells, the ratios of stand-off to drainage width and horizontal well length to drainage width should be considered to achieve maximum critical oil rate and breakthrough time in bottom-water reservoirs.

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Section: Horizontal Well Correlations Evaluationmentioning

confidence: 99%

Water Coning Prediction: An Evaluation of Horizontal Well Correlations

Okon¹

2018

EAS

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“…Therefore, proper prediction and planning of this production rate-sensitive phenomenon must be projected and captured in the production scheme to achieve maximum oil production and/or recovery from the reservoir. To evaluate the potentials of the various water coning correlations' prediction in vertical wells, the basic reservoir and fluid properties data were extracted from the work of Khalili [32] and Kumar et al [34]. These extracted data as presented in Table 1 were used to evaluate the various water coning correlations presented in Tables A1 through A3.…”

Section: Water Coning Correlations Evaluationmentioning

confidence: 99%

A Critical Evaluation of Water Coning Correlations in Vertical Wells

Okon¹

2018

AJSET

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In oil and gas production, developing bottom-water reservoirs with active aquifer requires production strategy that can handle production-rate-sensitive phenomenon -water coning. The coned water that moves into the completion interval results in production related problems: excessive water production, surface water handling, low oil productivity, among others. To this end, several correlations: critical rate, breakthrough time and water-cut performance after breakthrough have been developed based on analytical, empirical and numerical approach to evaluate water coning tendencies in petroleum reservoirs. Some of the developed correlations have gained field application. However, limited literatures are available that have evaluated the prediction of these water coning correlations. Thus, the various water coning correlations for vertical well were evaluated and the obtained results show that most correlations have the same prediction profile. Conversely, these correlations predicted different coning parameters' value. Further analysis of the results depicts that critical production rate and breakthrough time in vertical wells are indirectly dependent on fractional well penetration. In addition, the correlations developed from water-cut data for the prediction of water-cut performance after breakthrough indicate more realistic predictions in the water-cut profile than the correlations developed from water-oil ratio. Therefore, to delay water coning tendency in bottom-water reservoirs, fractional well penetration is a consideration in vertical wells to establish optimum critical oil rate and breakthrough time during oil and gas production.

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“…In addition, this flow regime comprises both radial and linear flow. The simple assumptions applied in vertical wells (e.g., single permeability or radial symmetry) may not apply to a horizontal well [ 16 , 17 ]. This makes it difficult to estimate the PI of horizontal wells using the model for vertical wells.…”

Section: Introductionmentioning

confidence: 99%

“…As the reservoir energy drives the fluids toward the well, the radial flow comes from all directions within the formation's thickness [ 1 , 10 ]. There might be an edge [ 5 ] or bottom water [ 17 ] in the aquifer. The linear flow comes from the movement of fluids through a non-changing cross-section, with both ends open to the flow and no fluids crossing the lateral or vertical sides [ 1 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

A novel model for predicting the productivity index of horizontal/vertical wells based on Darcy's law, drainage radius, and flow convergence

Nwonodi

2024

Heliyon

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Sensitivity study of horizontal length, offset from water oil contact and withdrawal rate of horizontal well in bottom water drive reservoir

Cited by 7 publications

References 8 publications

Water Coning Prediction: An Evaluation of Horizontal Well Correlations

Water Coning Prediction: An Evaluation of Horizontal Well Correlations

A Critical Evaluation of Water Coning Correlations in Vertical Wells

A novel model for predicting the productivity index of horizontal/vertical wells based on Darcy's law, drainage radius, and flow convergence

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