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2007•Journal of Southwest Petroleum UniversityRequires access

STEAM-DISTRIBUTED MATHEMATIC MODEL IN WELLBORE DURING STEAM INJECTION OF HEAVY OIL RESERVOIR

Tongjing Liu

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Abstract

Aimed at the characteristics of the steam injection stage of thermal recovery and based on the existed achievements, a relatively correct steam-distributed mathematic model is built in the paper. In this model, such factors as phase transition of fluids in wellbore and uneven inhibition of steam in formation are taken into account. Based on this research above mentioned, this model is verified by using actual testing data of several wells. It′s indicated that there exists a perfect match between the calculated values and testing data, which hints that the steam inhibition of the wells can be described with the steam distribution model established in this paper and the dynamic coupling law between the wellbore and formation can be reflected. The result of this research has guidance significance in the description of steam injection performance during thermal recovery of heavy oil.

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What this paper is about

Aimed at the characteristics of the steam injection stage of thermal recovery and based on the existed achievements, a relatively correct steam-distributed mathematic model is built in the paper. In this model, such factors as phase transition of fluids in wellbore and uneven inhibition of steam in formation are taken into account. Based on this research above mentioned, this model is verified by using actual testing data of several wells. It′s indicated that there exists a perfect match between the calculated values and testing data, which hints that the steam inhibition of the wells can be described with the steam distribution model established in this paper and the dynamic coupling law between the wellbore and formation can be reflected. The result of this research has guidance significance in the description of steam injection performance during thermal recovery of heavy oil.

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Available abstract

Aimed at the characteristics of the steam injection stage of thermal recovery and based on the existed achievements, a relatively correct steam-distributed mathematic model is built in the paper. In this model, such factors as phase transition of fluids in wellbore and uneven inhibition of steam in formation are taken into account. Based on this research above mentioned, this model is verified by using actual testing data of several wells. It′s indicated that there exists a perfect match between the calculated values and testing data, which hints that the steam inhibition of the wells can be described with the steam distribution model established in this paper and the dynamic coupling law between the wellbore and formation can be reflected. The result of this research has guidance significance in the description of steam injection performance during thermal recovery of heavy oil.

Key concepts: Wellbore, Steam injection, Petroleum engineering, Thermal, Phase change, Vapor quality, Engineering, Thermodynamics

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STEAM-DISTRIBUTED MATHEMATIC MODEL IN WELLBORE DURING STEAM INJECTION OF HEAVY OIL RESERVOIR — Research Paper | ScholarLens