二氧化碳吞吐试验中油层堵塞的原因

doi:10.11743/ogg20010310

Oil & Gas Geology ›› 2001, Vol. 22 ›› Issue (3): 238-239,244.doi: 10.11743/ogg20010310

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THE REASON OF RESERVOIR BLOCKAGE IN CO₂ SWALLOWING-SPITTING TEST

Qian Siping¹, Du Peimin¹, Qiao Baolin¹, Zhou Xuhuang¹, Zhang Xiuqiong¹, You Xiaomiao², Mo Bing¹

1. Research Institute of Exploration and Development, Zhongyuan Oilfield Company, Puyang, Henan;
2. Department of Science and Technology, Zhongyuan Oilfield Company, Puyang, Henan

Received:2001-04-15 Online:2001-09-25 Published:2012-01-16

Abstract

Abstract:

In the test of CO₂ swallowing spitting made in Zhongyuan Oilfields,a new problem of reservoir blockage near wellbore area has arisen.The test result of Wen 65-84 Well in Zhongyuan Oilfields suggests that unknown mud like matter and inorgamic matter CaCO₃ could not cause the reservoir blockage,the dialysis of heavy organic materials (paraffin,bitumen)caused by CO₂ injection and the drop dwon of temperature is the real reason of the reservoir blockage.

Key words: CO₂, swallowing spitting test, heavy organic matter, oil reservoir blockage,Zhongyuan Oilfields

CLC Number:

TE357.6

Qian Siping, Du Peimin, Qiao Baolin, Zhou Xuhuang, Zhang Xiuqiong, You Xiaomiao, Mo Bing. THE REASON OF RESERVOIR BLOCKAGE IN CO₂ SWALLOWING-SPITTING TEST[J]. Oil & Gas Geology, 2001, 22(3): 238-239,244.

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THE REASON OF RESERVOIR BLOCKAGE IN CO₂ SWALLOWING-SPITTING TEST

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THE REASON OF RESERVOIR BLOCKAGE IN CO₂ SWALLOWING-SPITTING TEST