Horizontal well in poorly consolidated reservoir as an important element to increase the oil production of the mature Handil Field

2018 ◽  
Author(s):  
H. Yusuf
Keyword(s):  
Horizontal Well ◽  
Oil Production

Parameters Optimization of Fractures with One for Injection and Two Others for Production of Horizontal Wells Fracturing on Offshore Oilfields

2014 ◽  
Vol 962-965 ◽  
pp. 489-493
Author(s):  
Zhi Qiang Li ◽  
Yong Quan Hu ◽  
Wen Jiang Xu ◽  
Jin Zhou Zhao ◽  
Jian Zhong Liu ◽  
...  
Keyword(s):  
Horizontal Well ◽  
Oil Production ◽  
Horizontal Wells ◽  
Simulation Method ◽  
Parameters Optimization ◽  
Development Mode ◽  
Fracture Conductivity ◽  
Fracture Length ◽  
Fractured Horizontal Well ◽  
Production Research

This article presents a new exploitation method based on the same fractured horizontal well with fractures for injection or production on offshore low permeability oilfields for the purpose of adapting to their practical situations and characteristics, which means fractures close to the toe of horizontal well used for injecting water and fractures near the heel of horizontal well used for producing oil. According to proposed development mode of fracturing, relevant physical model is established, Then reservoir numerical simulation method has been applied to study the effect of arrangement pattern of injection and production fractures, fracture conductivity, fracture length on oil production. Research indicates cumulative oil production is much higher by employing the middle fracture for injecting water compared with using the remote one, suggesting that the middle fracture adopted for injecting water, and hydraulic fracture length and conductivity have been optimized. The proposed development pattern of a staged fracturing for horizontal wells with some fractures applied for injecting water and others for production based on the same horizontal well provides new thoughts for offshore oilfields exploitation.

scholarly journals A steam rising model of steam-assisted gravity drainage production for heavy oil reservoirs

2019 ◽  
Vol 38 (4) ◽  
pp. 801-818
Author(s):  
Ren-Shi Nie ◽  
Yi-Min Wang ◽  
Yi-Li Kang ◽  
Yong-Lu Jia
Keyword(s):  
Production Rate ◽  
Horizontal Well ◽  
Oil Production ◽  
Steam Injection ◽  
Injection Rate ◽  
Gravity Drainage ◽  
Model Parameters ◽  
Steam Quality ◽  
Steam Chamber ◽  
Steam Assisted Gravity Drainage

The steam chamber rising process is an essential feature of steam-assisted gravity drainage. The development of a steam chamber and its production capabilities have been the focus of various studies. In this paper, a new analytical model is proposed that mimics the steam chamber development and predicts the oil production rate during the steam chamber rising stage. The steam chamber was assumed to have a circular geometry relative to a plane. The model includes determining the relation between the steam chamber development and the production capability. The daily oil production, steam oil ratio, and rising height of the steam chamber curves influenced by different model parameters were drawn. In addition, the curve sensitivities to different model parameters were thoroughly considered. The findings are as follows: The daily oil production increases with the steam injection rate, the steam quality, and the degree of utilization of a horizontal well. In addition, the steam oil ratio decreases with the steam quality and the degree of utilization of a horizontal well. Finally, the rising height of the steam chamber increases with the steam injection rate and steam quality, but decreases with the horizontal well length. The steam chamber rising rate, the location of the steam chamber interface, the rising time, and the daily oil production at a certain steam injection rate were also predicted. An example application showed that the proposed model is able to predict the oil production rate and describe the steam chamber development during the steam chamber rising stage.

Enhance Heavy Oil Production of Horizontal Well by Distributed Downhole Electrical Heating

2013 ◽  
Author(s):  
Jun Lin ◽  
Cheng Jiang ◽  
Fugang Lu ◽  
Yong Zhang ◽  
Yongheng Chen ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Horizontal Well ◽  
Oil Production ◽  
Electrical Heating

Inflow Performance of a Cyclic-Steam-Stimulated Horizontal Well Under the Influence of Gravity Drainage

SPE Journal ◽  
2011 ◽  
Vol 16 (03) ◽  
pp. 494-502 ◽  
Author(s):  
Z.. Wu ◽  
S.. Vasantharajan ◽  
M.. El-Mandouh ◽  
P.V.. V. Suryanarayana
Keyword(s):  
Heavy Oil ◽  
Horizontal Well ◽  
Oil Production ◽  
Steam Injection ◽  
Oil Field ◽  
Gravity Drainage ◽  
Attractive Alternative ◽  
Underlying Assumption ◽  
Heated Oil ◽  
Condensed Water

Summary In this paper, we present a new, semianalytical gravity-drainage model to predict the oil production of a cyclic-steam-stimulated horizontal well. The underlying assumption is that the cyclic steam injection creates a cylindrical steam chamber in the upper area of the well. Condensed water and heated oil in the chamber are driven by gravity and pressure drawdown toward the well. The heat loss during the soak period and during oil production is estimated under the assumption of vertical and radial conduction. The average temperature change in the chamber during the cycle is calculated using a semianalytical expression. Nonlinear, second-order ordinary differential equations are derived to describe the pressure distribution caused by the two-phase flow in the wellbore. A simple iteration scheme is proposed to solve these equations. The influx of heated oil and condensed water into the horizontal wellbore is calculated under the assumption of steady-state radial flow. The solution from the semianalytical formulation is compared against the results from a commercial thermal simulator for an example problem. It is shown that the model results are in good agreement with those obtained from reservoir simulation. Sensitivity studies for optimization of wellbore length, gravity drainage, bottomhole pressure, and steam-injection rate are conducted with the model. Results indicate that the proposed model can be used in the optimization of individual-well performance in cyclic-steam-injection heavy-oil development. The semianalytical thermal model presented in this work can offer an attractive alternative to numerical simulation for planning heavy-oil field development.

scholarly journals Análisis comparativo técnico - económico de producción de crudos pesados en pozos horizontales y direccionales, arena “m-1” formación napo, bloque 16, oriente ecuatoriano

2016 ◽  
Vol 3 (3) ◽  
pp. 165-171
Author(s):  
Carlos Portilla ◽  
Alamir Alvarez ◽  
Romel Erazo
Keyword(s):  
Comparative Analysis ◽  
Horizontal Well ◽  
Technical Information ◽  
Oil Production ◽  
Oil Field ◽  
Well Drilling ◽  
Horizontal Drilling ◽  
Technical Evaluation ◽  
Economic Comparison ◽  
Made In

Los tipos de perforación ejecutados en el campo Amo son: perforación vertical, direccional y horizontal. El objetivo de este trabajo es analizar qué tipo de perforación conviene hacer en el campo Amo. La selección del pozo a perforar, es mediante un análisis comparativo técnico-económico entre un pozo horizontal y un pozo direccional. Para este análisis es necesario disponer de la información técnica de los pozos seleccionados que se obtuvo a través de la operadora del Bloque 16. La formación Napo (arenisca M-1) son areniscas delgadas permeables. La completación de cada pozo está diseñada para extraer grandes cantidades de fluidos; la parte más elemental de este trabajo se basa en la comparación técnico-económica de los dos pozos seleccionados. En la evaluación técnica, se puede decir que el pozo horizontal Tigre 1, tiene una mayor producción de petróleo y agua, lo cual tiene un mejor rendimiento de ganancias. Finalmente, la perforación de los pozos, horizontal como direccional, ayuda a disminuir considerablemente la deforestación. Se concluye que la perforación de un pozo horizontal, comparado con un direccional, es más conveniente tanto técnica como económicamente, para los intereses de la empresa operadora de un campo.  Abstract The types of drilling well executed in the Amo oilfield are vertical, directional and horizontal. The main objective of this paper is to analyze the best drilling way should be made in the Amo oilfield. The drilling well selection is by a techno-economical comparative analysis of a horizontal well and a directional well. For to make this analysis was necessary the use technical information of the selected wells, the data was obtained through the operator-company of Block 16 (Amo Oil field). The Napo (sandstone M-1) sandstones are thin and permeable. The completion of each well is designed to extract large quantities of fluids. The most important part of this work is based on technical and economic comparison of the two selected wells. In the technical evaluation, we can say that the Tiger (horizontal well) has increased production of oil and water, which performs better profit.  The horizontal and directional well drilling would help to significantly reduce deforestation on the oilfield and increase the oil production. And, the horizontal drilling is more convenient than directional well according techno-economical aspects.

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