Study on Development Well Pattern of Combined Steam Drive and Gravity Drainage in a Reservoir with Interbeds and its Application: A Case Study

2018 ◽  
Author(s):  
Changhao Hu ◽  
Tiantian Zhang ◽  
Zhongyuan Wang ◽  
Bing Han ◽  
Guangxing Zhou ◽  
...  
Keyword(s):  
Gravity Drainage ◽  
Steam Drive ◽  
Well Pattern

Steam Drive Small "Back" Glyph Pattern Injection-Production Parameters Optimization Research

2013 ◽  
Vol 868 ◽  
pp. 629-632
Author(s):  
Gui Man Liu
Keyword(s):  
History Matching ◽  
Field Work ◽  
Simulation Software ◽  
Oil Field ◽  
Parameters Optimization ◽  
Production Parameters ◽  
Theoretical Support ◽  
Steam Drive ◽  
Well Pattern ◽  
Injection Ratio

Jin 45 block of Liaohe oil field work with inverted nine-spot which has a low production-injection ratio of 3:1, but now it has a phenomenon of energy spillover. On the basis of that, design a small "back" glyph injection-production well pattern, this pattern has a higher production-injection ratio of 9:1. Petrel software makes geologic model, through the CMG numerical simulation software for steam huff and puff history matching, on the small back glyph pattern injection-production parameters optimization makes the 7.5 years of steam drive prediction. The results of the study show that: the little back glyph pattern in variable speed gas injection has the advantage of the high gas oil ratio and low production speed , more suitable for heavy oil steam drive development. It provides theoretical support for the steam drive of Jin 45 block of Liaohe oil field's expanding.

THE ANALYSIS OF THERMAL FIELDS AT THE PRIMARY STAGE OF THE STEAM-ASSISTED GRAVITY DRAINAGE PROCESS

2021 ◽  
Vol 7 (2) ◽  
pp. 27-42
Author(s):  
Alexander Ya. GILMANOV ◽  
Konstantin M. FEDOROV ◽  
Alexander P. SHEVELEV
Keyword(s):  
Temperature Distribution ◽  
Gravity Drainage ◽  
Stage Duration ◽  
Minimum Duration ◽  
Primary Stage ◽  
Steam Assisted Gravity Drainage ◽  
Thermal Fields ◽  
Unbounded Medium ◽  
Well Pattern ◽  
First Time

This article analyzes the temperature distribution in a producer well at the primary stage of the steam-assisted gravity drainage process. The increase in share of hard-to-recover reserves requires using steam-assisted gravity drainage (SAGD). Its successful application, in turn, depends on warming up the inter-well zone, which demands steam circulation in both wells at the primary stage of the process. The duration of this stage affects the transition to oil production and the profitability of the process, which emphasizes the importance of analyzing thermal fields at this stage to assess its duration. The existing research does not allow estimating the temperature in the producer, using the correct formulation of the problem. This paper presents the temperature distribution in a producer for SAGD for classical and chess well patterns for the first time. The aim of the work is to choose a development system for the minimum duration of primary stage of SAGD. For this purpose, the fundamental solution of the non-stationary heat equation for a continuous stationary point source in an unbounded medium is used. The estimation of temperature, at which oil becomes mobile, allows determining the primary stage duration. The authors compare the classical and chess well patterns. In addition, they have obtained the temperature distribution in producer. The results show that classical well pattern provides faster heating of inter-well zone. It is determined that the closest injection well has the greatest influence on the temperature in the producing well.

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