Based on analysis of geophysical data such as core observation, rock slices identification, physical property, scanning electron microscope, X-ray diffraction, logging data etc., 16 factors of sedimentation, diagenesi...Based on analysis of geophysical data such as core observation, rock slices identification, physical property, scanning electron microscope, X-ray diffraction, logging data etc., 16 factors of sedimentation, diagenesis, fluid pressure, and their relationships with reservoir physical property were analyzed, and the results indicate sedimentation is the internal factor controlling the reservoir property, diagenesis is the external and final decisive factor and abnormal fluid pressure is an important factor preserving the deep reservoir property. Quantitative characterization of diagenesis indicates that compaction and dissolution are more important than cementation and they respectively cause porosity change of-23.6% and 7.7% and -6.2%. Through optimizing 11 main controlling factors and constructing reservoir evaluation index （REI） according to the hierarchical cluster and principal component analysis, reservoir classification standard was established and reservoirs were divided into four classes. The studies show that Es~ SQ4 consists mainly of class I and II, while Es~ SQ6 is mainly of class III and II; the favorable zone is the north and south slope of Qibei sub-sag and the Liujianfang fault-nose. The successful application of the quantitative and comprehensive evaluation in the Qibei area verifies the advanced, practicable method of less artificial factor is suitable for the low porosity and permeability reservoir.展开更多
Objective： To explore the short and long-term efficacy of combining electroacupuncture（EA） and Qibei mixture in the treatment of irritable bowel syndrome（IBSD）.Methods： Six hundred and forty-four patients with c...Objective： To explore the short and long-term efficacy of combining electroacupuncture（EA） and Qibei mixture in the treatment of irritable bowel syndrome（IBSD）.Methods： Six hundred and forty-four patients with confirmed IBSD from the Department of Gastroenterology, the First Affiliated Hospital of Xinxiang Medical University in China, recruited from July 2012 to June 2016, were randomly divided into four groups, the EA group, Qibei mixture group, combination group and medication group with 161 patients in each group. The patients in the EA group were treated with EA at zúsānlǐ（足三里ST36）. Gān shù（肝俞BL18）, Pǐshù（脾俞BL20）. Tàichōng（太冲LR36） and Qízhōngsìbiān（脐中四边）once daily for 4 weeks, while the patients in the Qibei mixture group were treated with 50 mL of Qibei mixture twice daily, the combination group with the above-mentioned EA and Qibei mixture, and the medication group with 1 tablet compound diphenoxylate twice, 3 g montmorillonite powder three times and 25 mg amitriptyline twice daily. The defecation frequencies, stool properties, accompanying symptom score, life quality score and adverse reactions were recorded pre-treatment,at the end of treatment and 6 weeks post-treatment for the four groups.Results： Compared with pre-treatment, the defecation frequencies, stool property score and accompanying symptom score were all decreased significantly at the end of treatment in each group（all P〈0.01）,while the scores of nine dimensions of quality of life were all increased significantly（all P〈0.01）. The above-mentioned indices were better in the combination group than in the other groups（all P〈0.05）.Compared with the end of treatment, no significant recurrences of the above-mentioned indices had occurred in the combination group or the EA group at 6 weeks post-treatment（both P〉0.05）, but these indices all recurred significantly in the group given Qibei mixture and the medication group（P〈0.05）.The short-and long-term total effective rates in the combination group both showed significant differences from those in the other groups（P〈0.05, P〈0.01）. No serious adverse reactions occurred in the four groups.Conclusion： EA and Qibei mixture can decrease defecation frequencies, improve stool properties, and alleviate accompanying symptoms to increase life quality, but the therapeutic effect of combination therapy is greater, with better reliability and long-term efficacy.展开更多
There are few 3-D seismic profiles and drillings in the middle part of the Qibei depression in the Dagang oilfield, and more than 70% of the 2-D seismic profiles were completed before the 1980s. Meanwhile, changes in ...There are few 3-D seismic profiles and drillings in the middle part of the Qibei depression in the Dagang oilfield, and more than 70% of the 2-D seismic profiles were completed before the 1980s. Meanwhile, changes in the terrestrial formations in this region have been large and complex. These factors have made it difficult to predict reservoirs in this area. The purpose of this paper is to establish a methodology for predicting potential gas and oil reservoirs. Our research combines sequence stratigraphy, well-logs, and seismic analysis to elucidate the prediction of flagstone reservoirs in the S1 (Sha-I) Member in the middle of the Qibei depression. Previous research indicates that these rocks were deposited in an environment that had a semiarid, northern subtropical, and warm, humid climate. The objective strata currently consist mainly of lake fades, deeper lake facies, and shore-shallow lake facies. The study reveals that the lower section of the S1 Member is an important objective region for exploration.展开更多
文摘Based on analysis of geophysical data such as core observation, rock slices identification, physical property, scanning electron microscope, X-ray diffraction, logging data etc., 16 factors of sedimentation, diagenesis, fluid pressure, and their relationships with reservoir physical property were analyzed, and the results indicate sedimentation is the internal factor controlling the reservoir property, diagenesis is the external and final decisive factor and abnormal fluid pressure is an important factor preserving the deep reservoir property. Quantitative characterization of diagenesis indicates that compaction and dissolution are more important than cementation and they respectively cause porosity change of-23.6% and 7.7% and -6.2%. Through optimizing 11 main controlling factors and constructing reservoir evaluation index （REI） according to the hierarchical cluster and principal component analysis, reservoir classification standard was established and reservoirs were divided into four classes. The studies show that Es~ SQ4 consists mainly of class I and II, while Es~ SQ6 is mainly of class III and II; the favorable zone is the north and south slope of Qibei sub-sag and the Liujianfang fault-nose. The successful application of the quantitative and comprehensive evaluation in the Qibei area verifies the advanced, practicable method of less artificial factor is suitable for the low porosity and permeability reservoir.
文摘Objective： To explore the short and long-term efficacy of combining electroacupuncture（EA） and Qibei mixture in the treatment of irritable bowel syndrome（IBSD）.Methods： Six hundred and forty-four patients with confirmed IBSD from the Department of Gastroenterology, the First Affiliated Hospital of Xinxiang Medical University in China, recruited from July 2012 to June 2016, were randomly divided into four groups, the EA group, Qibei mixture group, combination group and medication group with 161 patients in each group. The patients in the EA group were treated with EA at zúsānlǐ（足三里ST36）. Gān shù（肝俞BL18）, Pǐshù（脾俞BL20）. Tàichōng（太冲LR36） and Qízhōngsìbiān（脐中四边）once daily for 4 weeks, while the patients in the Qibei mixture group were treated with 50 mL of Qibei mixture twice daily, the combination group with the above-mentioned EA and Qibei mixture, and the medication group with 1 tablet compound diphenoxylate twice, 3 g montmorillonite powder three times and 25 mg amitriptyline twice daily. The defecation frequencies, stool properties, accompanying symptom score, life quality score and adverse reactions were recorded pre-treatment,at the end of treatment and 6 weeks post-treatment for the four groups.Results： Compared with pre-treatment, the defecation frequencies, stool property score and accompanying symptom score were all decreased significantly at the end of treatment in each group（all P〈0.01）,while the scores of nine dimensions of quality of life were all increased significantly（all P〈0.01）. The above-mentioned indices were better in the combination group than in the other groups（all P〈0.05）.Compared with the end of treatment, no significant recurrences of the above-mentioned indices had occurred in the combination group or the EA group at 6 weeks post-treatment（both P〉0.05）, but these indices all recurred significantly in the group given Qibei mixture and the medication group（P〈0.05）.The short-and long-term total effective rates in the combination group both showed significant differences from those in the other groups（P〈0.05, P〈0.01）. No serious adverse reactions occurred in the four groups.Conclusion： EA and Qibei mixture can decrease defecation frequencies, improve stool properties, and alleviate accompanying symptoms to increase life quality, but the therapeutic effect of combination therapy is greater, with better reliability and long-term efficacy.
文摘There are few 3-D seismic profiles and drillings in the middle part of the Qibei depression in the Dagang oilfield, and more than 70% of the 2-D seismic profiles were completed before the 1980s. Meanwhile, changes in the terrestrial formations in this region have been large and complex. These factors have made it difficult to predict reservoirs in this area. The purpose of this paper is to establish a methodology for predicting potential gas and oil reservoirs. Our research combines sequence stratigraphy, well-logs, and seismic analysis to elucidate the prediction of flagstone reservoirs in the S1 (Sha-I) Member in the middle of the Qibei depression. Previous research indicates that these rocks were deposited in an environment that had a semiarid, northern subtropical, and warm, humid climate. The objective strata currently consist mainly of lake fades, deeper lake facies, and shore-shallow lake facies. The study reveals that the lower section of the S1 Member is an important objective region for exploration.
