高压含气原油凝点测量新方法  

A new method for gel point measurement of crude oil with dissolved gas under high pressure

作　　者：孙仁远[1] 耿宏章[2] 孙志峰[2] 

机构地区：[1]中国石油大学(华东)石油工程学院 [2]中国石油大学(华东)物理科学与技术学院,山东东营257061

出　　处：《化工学报》2008年第3期756-760,共5页CIESC Journal

基　　金：国家重点基础研究发展计划项目(2006CB705804);国家留学基金项目~~

摘　　要：The gel point of crude oil is one of the important parameters for oil and gas field development, oil and gas storage and transportation.The conventional method can only measure the gel point of the crude oil free of gas under atmospheric pressure.A new method for measuring the crude oil with dissolved gas under high pressure based on a new measurement principle was proposed.A new instrument of gel point measurement for crude oil with dissolved gas under high pressure was designed.The result measured by the new instrument was compared with that measured by the conventional method.The effect of pressure and solution gas-oil ratio on the gel point of crude oil was studied.Experiments showed that the results measured by the new instrument coincided with that by the conventional method for crude oil free of gas under atmospheric pressure.Under the same solution gas-oil ratio, the gel point of crude oil with dissolved gas increased with pressure, the gel point increased by 0.7℃ with 2.0 MPa pressure increment in the experimental conditions.The gel point of crude oil with dissolved gas decreased with solution gas-oil ratio under the same pressure, the gel point decreased by 1.0℃ with 10.0 m3·m-3 solution gas-oil ratio increment in the experimental conditions.The result is of importance to the management of waxy oil production and the design for oil and gas storage and transportation.The gel point of crude oil is one of the important parameters for oil and gas field development, oil and gas storage and transportation. The conventional method can only measure the gel point of the crude oil free of gas under atmospheric pressure. A new method for measuring the crude oil with dissolved gas under high pressure based on a new measurement principle was proposed. A new instrument of gel point measurement for crude oil with dissolved gas under high pressure was designed. The result measured by the new instrument was compared with that measured by the conventional method. The effect of pressure and solution gas-oil ratio on the gel point of crude oil was studied. Experiments showed that the results measured by the new instrument coincided with that by the conventional method for crude oil free of gas under atmospheric pressure. Under the same solution gas-oil ratio, the gel point of crude oil with dissolved gas increased with pressure, the gel point increased by 0. 7℃ with 2. 0 MPa pressure increment in the experimental conditions. The gel point of crude oil with dissolved gas decreased with solution gas-oil ratio under the same pressure, the gel point decreased by 1.0℃ with 10.0 ms ·m^-3 solution gas-oil ratio increment in the experimental conditions. The result is of importance to the management of waxy oil production and the design for oil and gas storage and transportation.

关 键 词：原油 凝点 测量方法 溶解气 高压 

分 类 号：TE81[石油与天然气工程—油气储运工程]