Development of Thin Oil Columns Under Water Drive: Serang Field Examples

Vo, D.T.; Sukerim,; Widjaja, Danang R.; Partono, Yoseph; Clark, R. T.

doi:10.2118/54312-ms

Cited by 11 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If crude oil enters gas cap, large amount of oil will be wasted and oil recovery will be influenced. Vo [9], [10] and Kabir [11] pointed out that the key concern is therefore obtaining economic and optimal operations despite the gas and water coning effects that could confine production below commercial rates and hinder recovery. Therefore, coordinated development of gas cap and oil ring has been an ideal way to recover resources in gas-cap reservoirs, Kuppe [12] have confirmed it by considering concurrent gas and oil production from the Virginia Hills Belloy field.…”

Section: Introductionmentioning

confidence: 99%

Study on the Reasonable Development Method of Gas Cap Reservoir

Liu¹,

Cheng²,

Shi-jun³

et al. 2014

IJESD

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Study on the Reasonable Development Method of Gas Cap Reservoir

Liu¹,

Cheng²,

Shi-jun³

et al. 2014

IJESD

View full text Add to dashboard Cite

Effect of Gas Cap and Aquifer Strength on Optimal Well Location for Thin-Oil Rim Reservoirs

Iyare¹,

Silva²

2012

All Days

View full text Add to dashboard Cite

Many hydrocarbon reservoirs have an oil bearing zone, sandwiched between gas and water bearing zones. For these reservoirs, considerable studies are conducted to optimize the location of wells in the oil rim so as to maximize oil recovery. Few studies however have investigated the conditions under which wells could be located in either the gas cap or the water leg so as to also maximize oil recovery. This study investigates the effect of gas cap and aquifer sizes on oil recovery from a reservoir with a thin oil rim using a single well numerical reservoir simulator model. Sensitivity studies were conducted by varying gas cap size, aquifer size and well location, and analyzing their effect on oil recovery. The results indicated that for a reservoir with a large gas cap, it may be more favorable to place the horizontal well below the water-oil contact; for a reservoir with a small gas cap and large aquifer, it may be advantageous to place the horizontal well above the gas-oil contact. This study is significant since thin oil rims are especially prominent in the prolific gas province offshore the east coast of Trinidad, and maximizing oil recovery, the more valuable resource, has positive financial implications.

show abstract

Application of Multivariate Methods to Optimize Development of Thin Oil Zones in a Mature Carbonate Reservoir

et al. 2012

View full text Add to dashboard Cite

Exploitation of thin oil zones in a mature field with complex carbonate geology under strong water drive offers many challenges. The primary objective is effective oil recovery from the thin oil zones without excessive water production. The initial development phase targeting thin remaining oil zones in a giant, mature carbonate field in Saudi Arabia has been guided by reservoir simulation results, with performance generally exceeding expectations. However, performance of individual horizontal wells has varied greatly. Multivariate statistical methods have been applied across the gamut of reservoir parameters for these wells to gain further insights into critical success factors and mechanisms. Response variables were established (producing time to reach various watercut thresholds) to gauge well performance. Principal component, factor, and multiple regression analyses were applied to independent reservoir parameters for a population of 20 horizontal wells placed in the target zone. These parameters included zone thickness, standoff from fluid contacts, vertical permeability contrast, thickness of low-permeability interval, reservoir contact, net/gross ratio, completion design, extent of fracturing, zone porosity, proximity to injectors, and trajectory orientation. Multivariate analysis conclusively demonstrated that the principal factor governing well performance in the early period (up to three years) was the vertical permeability contrast or in other words, the extent to which a permeability baffle exists between the thin low-permeability zone and the underlying thick high-permeability zone. Other parameters may contribute to well performance beyond the 30% watercut threshold and will be addressed in a future paper. The findings from this study have been translated into Best Practices for exploiting thin oil zones and have been applied in further developing the thin oil zone in the subject field.

show abstract

Development of Thin Oil Columns Under Water Drive: Serang Field Examples

Cited by 11 publications

References 5 publications

Study on the Reasonable Development Method of Gas Cap Reservoir

Study on the Reasonable Development Method of Gas Cap Reservoir

Effect of Gas Cap and Aquifer Strength on Optimal Well Location for Thin-Oil Rim Reservoirs

Application of Multivariate Methods to Optimize Development of Thin Oil Zones in a Mature Carbonate Reservoir

Contact Info

Product

Resources

About