In view of the current situation that there is no related standards of unified integrity management effectiveness evaluation at home and abroad, an effectiveness evaluation index system for gathering and transportation pipeline based on the regional characteristics of oilfields is proposed in the paper. Under this index system, the five pilot schemes are with the quantitatively effectiveness evaluation and analysis by analytic hierarchy process (AHP) and data envelopment analysis (DEA). The current situation of integrity management effectiveness for pipeline in the oilfield area can be scientifically and objectively reflected based on the result-oriented effectiveness evaluation system as well as the targeted suggestions are put forward to improve the quality of pipeline management. The results show that DEA focuses on the objective and quantitative effectiveness evaluation of indicators, while AHP focuses more on the subjective and qualitative effectiveness evaluation of indicators. It is of great significance to select appropriate effectiveness evaluation method based on the value of index for pipeline management and hint of production efficiency of oil and gas field.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |