高酸镍催化剂在Boca De Jaruco油藏蒸汽循环增产中的工业应用

A. Vakhin, I. Mukhamatdinov, F. Aliev, Dmitriy F. Feoktistov, S. Sitnov, M. Gafurov, I. Minkhanov, M. Varfolomeev, D. Nurgaliev, I. Simakov, Azat A. Latypov, O. Petrashov, Aleksey V. Solovev, Georgiy Sansiev
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引用次数: 3

摘要

合成了一种镍基催化剂前驱体,用于重质原油原位提质,能够提高蒸汽增产技术的效率。前驱体活化是由于高酸镍在水热条件下的分解。本研究的目的是分析Boca de Jaruco油藏重油原位催化提质从实验室规模实验到现场规模实施的效率。提出的稠油和天然沥青储层化学转化催化组合物为油溶性镍化合物和有机氢供体溶剂。在实验室规模的水热条件下,在300°С和90 bar条件下,镍基催化组合物表现出良好的性能;沥青质含量由22%降至7%。原油粘度也降低了三分之一。设计了催化剂前驱体的工业化生产工艺,实现了第一批12吨的中试生产。为了将催化成分输送到Boca de Jaruco油藏(古巴)的产层,对“循环蒸汽增产”技术进行了改进。催化剂前驱体的活性形式是纳米分散的镍的混合氧化物和硫化物。在Boca de Jaruco油藏M碳酸沥青地层中进行了催化剂注入中试。迄今为止,与上一个周期(不使用催化剂)相比,催化组合物的应用使累计产油量和产油量增加了170%(效果仍在继续)。注入催化剂后,对200多口生产井样品进行了实验室分析。根据所研究样品的物理化学性质,并考虑到其优异的采收率系数,决定在给定油藏中扩大催化剂的工业应用。该项目计划于2021年第四季度启动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Industrial Application of Nickel Tallate Catalyst During Cyclic Steam Stimulation in Boca De Jaruco Reservoir
A nickel-based catalyst precursor has been synthesized for in-situ upgrading of heavy crude oil that is capable of increasing the efficiency of steam stimulation techniques. The precursor activation occurs due to the decomposition of nickel tallate under hydrothermal conditions. The aim of this study is to analyze the efficiency of in-situ catalytic upgrading of heavy oil from laboratory scale experiments to the field-scale implementation in Boca de Jaruco reservoir. The proposed catalytic composition for in-reservoir chemical transformation of heavy oil and natural bitumen is composed of oil-soluble nickel compound and organic hydrogen donor solvent. The nickel-based catalytic composition in laboratory-scale hydrothermal conditions at 300°С and 90 bars demonstrated a high performance; the content of asphaltenes was reduced from 22% to 7 wt.%. The viscosity of crude oil was also reduced by three times. The technology for industrial-scale production of catalyst precursor was designed and the first pilot batch with a mass of 12 ton was achieved. A «Cyclic steam stimulation» technology was modified in order to deliver the catalytic composition to the pay zones of Boca de Jaruco reservoir (Cuba). The active forms of catalyst precursors are nanodispersed mixed oxides and sulfides of nickel. The pilot test of catalyst injection was carried out in bituminous carbonate formation M, in Boca de Jaruco reservoir (Cuba). The application of catalytic composition provided increase in cumulative oil production and incremental oil recovery in contrast to the previous cycle (without catalyst) is 170% up to date (the effect is in progress). After injection of catalysts, more than 200 samples from production well were analyzed in laboratory. Based on the physical and chemical properties of investigated samples and considering the excellent oil recovery coefficient it is decided to expand the industrial application of catalysts in the given reservoir. The project is scheduled on the fourth quarter of 2021.
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