Topic
Petroleum reservoir
About: Petroleum reservoir is a research topic. Over the lifetime, 5403 publications have been published within this topic receiving 83535 citations. The topic is also known as: petroleum deposit.
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TL;DR: In this paper, the perturbed-chain statistical associating fluid theory (PC-SAFT) was applied to a high-asphaltene, high-resin crude oil produced from a deepwater reservoir.
Abstract: Thermodynamic modeling is conducted for a high-asphaltene, high-resin crude oil produced from a deepwater reservoir using the perturbed-chain statistical associating fluid theory (PC-SAFT). The asp...
24 citations
TL;DR: In this paper, two major lithofacies types (lithofacies 1 - sandy debrite and turbidite) were identified and their origin relating to deep-lacustrine gravity flows have been addressed.
24 citations
TL;DR: The Upper Jurassic (Oxfordian) Smackover Formation is a prolific oil and gas reservoir in the northern Gulf of Mexico, including the Mississippi Interior Salt Basin area as mentioned in this paper, which is categorized as a giant petroleum system and ranks fourth among recognized Upper Jurassic petroleum systems.
Abstract: The Upper Jurassic (Oxfordian) Smackover Formation is a prolific oil and gas reservoir in the northern Gulf of Mexico, including the Mississippi Interior Salt Basin area. The Smackover petroleum system is categorized as a giant petroleum system and ranks fourth among recognized Upper Jurassic petroleum systems. In the Mississippi Interior Salt Basin area, the components of the Smackover petroleum system include pre rift, syn rift and post rift siliciclastic, evaporite, and carbonate underburden and overburden rocks, Smackover subtidal lime mudstone source rocks, uppermost Smackover anhydrite and Buckner Anhydrite Member subaqueous saltern and sabkha seal rocks, and upper Smackover shoal complex and tidal flat complex packstone, grainstone, boundstone and dolostone reservoir rocks. The critical events include the initiation of the generation of crude oil, the commencement of hydrocarbon expulsion, the initiation of hydrocarbon migration, and the entrapment of hydrocarbons during the Early to Late Cretaceous. The critical moment for the Smackover petroleum system is the time of peak hydrocarbon expulsion in the mid to late Early Cretaceous in basin center areas and mid to latest late Cretaceous in areas along the northern basin margin. *** DIRECT SUPPORT *** A00QA034 00003
24 citations
TL;DR: In this article, an integrated reservoir characterization of the Seminole San Andres Unit was conducted using outcrop and subsurface data, where the high frequency cycles and rock-fabric facies were identified on outcrops and cores were used to correlate wireline logs.
Abstract: An integrated reservoir characterization of Seminole San Andres Unit was conducted using outcrop and subsurface data. The high frequency cycles and rock-fabric facies identified on outcrop and cores were used to correlate wireline logs. Reservoir and simulation models of the outcrop and a two-section area of the Seminole San Andres field were constructed using rock-fabric units within high-frequency cycles (HFC`s) as a geologic framework. Simulations were performed using these models to investigate critical factors affecting recovery. High-frequency cycles and rock-fabric units are the two critical scales for modeling shallow-water carbonate ramp reservoirs. Descriptions of rock-fabric facies stacked within high-frequency cycles provide the most accurate framework for constructing geologic and reservoir models because discrete petrophysical functions can be fit to rock fabrics and fluid flow can be approximated by the k{sub vh} ratios among rock-fabric flow units. Permeability is calculated using rock-fabric-specific transforms between interparticle porosity and permeability. Core analysis data showed that separate-vug porosity has a very strong effect on relative permeability and capillary pressure measurements. The stratigraphic features of carbonates can be observed in stochastic realizations only when they are constrained by rock-fabric flow units. Simulation results from these realizations are similar in recovery but different in production andmore » injection rates. Scale-up of permeability in the vertical direction was investigated in terms of the ratio of vertical permeability to horizontal permeability (k{sub vh}). This ratio decreases exponentially with the vertical grid-block size up to the average cycle size of 20 ft (6.1 m) and remains at a value of 0.06 for a grid-block size of more than 20 ft (>6.1 m), which is the average thickness of high-frequency cycles.« less
24 citations
Book•
01 May 1982
TL;DR: In this article, the authors address one of the problems in the Basin-porosity in many of the producing formations comes and goes rapidly, and present a model for stratigraphic traps.
Abstract: The Williston Basin contains incredible hydrocarbon-producing formations, but with its subtle structures, identifying potential reservoirs is problematic. This publication addresses one of the problems in the Basin–porosity in many of the producing formations comes and goes rapidly. Chapters addressing this include basic information on stratigraphic traps, both in general and in the Williston in specific; interpretation of carbonate lighology from logs, basic omposition of carbonate rocks; types of porosity in carbonates; major nearsurface diagenetic environments; subsurface diagenesis; dolomite and dolomitazation; and major models for stratigraphic traps.
24 citations