Field Development and Optimization Plan for Compartmentalized Oil Rim Reservoir

Gazar, Ashraf Lotfy El; Alklih, Mohamad Yousef; Sumaidaa, Saleh A. Bin; Shabibi, Tariq Ali Al

doi:10.2118/177659-ms

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…In the formations that include oil in the uniform porous media continuously cover a large area, major volume of aquifer (especially salty water) surrounded this formation. Increasing and maintaining the reservoir pressure is a common method to increase reservoir oil recovery and it happens in different ways by injecting a miscible or immiscible fluid [6][7][8][9][10][11][12][13][14][15][16]. Selection of this injected fluid is usually depends on availability, price (economy) and geological reservoir characteristics.…”

Section: Introductionmentioning

confidence: 99%

A Feasible Experimental Evaluation of Surfactant Polymer Coupled with Direct Foam Flooding on the Oil Recovery Factor<strong> </strong>

Davarpanah¹

2018

Preprint

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Optimum selectivity of enhanced oil recovery techniques would play a substantial role in the economic prosperity of petroleum industries which might be virtually eliminated unnecessary expenditures. In this paper, the simultaneous utilization of foaming agent, surfactant polymer (SP), and supercritical carbon dioxide were taken into the investigation under the miscible condition to evaluate the efficiency of each scenario on the cumulative recovery factor, water cut and pressure drop. According to the results of this experimental evaluation, SP-foam flooding had witnessed the highest blockage which is caused to have the maximum recovery factor due to the mobilization of more oil volume in the low permeable pores and cracks. Furthermore, the utilization of surfactant with supercritical carbon dioxide had experienced the least recovery factor regarding the insufficient foam generation which is led to less mobilization of oil phase in the pore throats.   

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Section: Introductionmentioning

confidence: 99%

A Feasible Experimental Evaluation of Surfactant Polymer Coupled with Direct Foam Flooding on the Oil Recovery Factor<strong> </strong>

Davarpanah¹

2018

Preprint

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Adapting Field Development Plan of Compartmentalized Oil Rim Reservoir with Significant Gas Cap and Water Aquifer - Case Study

Gazar

Shabibi

Loredo

et al. 2016

Day 1 Mon, November 07, 2016

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The paper is continuation of SPE-177659, This work illustrates adapted field development plan and optimization studies conducted on a Middle-Eastern compartmenlized complex carbonate oil rim reservoir with significant gas cap and water aquifer. The need to expedite the field development was realized based on increasing gas demand for the country as well as fast pace of urbanization in area which can potentially complicate the field development in future with regard to availability and accessibility of drilling sites. The surrounding fields have seen ranges of H2S concentartion in compositionhence, public safety is a major concern. PVT studies indicate a wide range of compositions which further complicates the development plan considering the surrounding sensitive environment. The reservoir exhibits relatively fair to poor reservoir characteristics, variable contacts and composition variation across the reservoir due to faulting- suggesting the presence of multiple reservoir compartments. To exploit the sweet spots of a thin oil rim in highly faulted reservoir is a major challenge considering limitation on drilling location and horizontal reach. The scenarios of field development and economics were created for developing the reservoir as oil as well as gas development. A total of 10 wells had penetrated the reservoir out of which 8 wells tested oil and suggested a significant initial gas cap while 2 others penetrated water leg. Six years of early production scheme (EPS, 4 producers, 1993 to 1998) data in addition to production testing, core (2 wells), MDT (3 wells), PVT (4 wells) data were gathered in order to identify the main uncertainties and test the feasibility of the full field development. EPS indicated production decline coupled with severe increase in GOR and water cut in some wells, after which the producing wells and facilities were P&A due to safety concerns and low productivity. A number of parameters were addressed and optimized as a part of full field development plan. The dynamic modeling suggests that an ultimate recovery of 70% can be achieved by the different injection scenarios. However, considering the complexity of the surrounding environment and the size of the prize, it is recommended that the field development should be consideredfor a period of 10 years under natural depletion considering economically viability, provided the most effective development strategy in terms of number, location, orientation and horizontal reach is adopted. Initially it was planned to develop the field as oil rim development however the development strategy was adopted to develop the gas cap instead of the oil rim considering urgency of development, low oil price forecast in short term, better economics and the country gas demand. This work discusses the influence of different parameters including the human landscape on decision making.

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Challenges of Developing Marginal Fields in the Current Climate of Oil and Gas Industry

Danmadami

Iyalla

Oluyemi

et al. 2021

Day 3 Wed, August 04, 2021

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Marginal field development has gained relevance in oil producing countries because of the huge potential economic benefits it offers. The Federal Government of Nigeria commenced a Marginal Fields program in 2001 as part of her policy to improve the nation’s strategic oil and gas reserves and promote indigenous participation in the upstream sector. Twenty years after the award of marginal fields to indigenous companies to develop, 50% have developed and in production, 13% have made some progress with their acquisition while 37% remain undeveloped. The poor performance of the marginal field operators is due to certain challenges which have impeded their progress. A review of challenges of developing marginal fields in the current industry climate was conducted on marginal fields in Nigeria to identify keys issues. These were identified as: funding, technical, and public policy. Considering the complex, competitive and dynamic environment in which these oil and gas companies operate, with competition from renewables, pressure to reduce carbon footprint, low oil price and investors expectation of a good return, companies must maintain tight financial plan, minimize emissions from their operations and focus on efficiency through innovation. The study identifies the need for a decision-making approach that takes into consideration multi criteria such as cost, regulation, quality, technology, security, stakeholders, safety and environment, as important criteria based on which to evaluate the selection of appropriate development option for marginal fields.

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Field Development and Optimization Plan for Compartmentalized Oil Rim Reservoir

Cited by 3 publications

References 6 publications

A Feasible Experimental Evaluation of Surfactant Polymer Coupled with Direct Foam Flooding on the Oil Recovery Factor<strong> </strong>

A Feasible Experimental Evaluation of Surfactant Polymer Coupled with Direct Foam Flooding on the Oil Recovery Factor<strong> </strong>

Adapting Field Development Plan of Compartmentalized Oil Rim Reservoir with Significant Gas Cap and Water Aquifer - Case Study

Challenges of Developing Marginal Fields in the Current Climate of Oil and Gas Industry

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