环境温度对社鼠能量需求和食物同化的影响

Niviventer confucianus is a common species of rodent in South China. We designed an experimental protocol to determine the influence of temperature on energy requirement and food assimilation of the N. confucianus . In our feeding trials, four experimental temperatures were applied: 17℃,22℃,27℃ and 32℃. The energy requirements of N. confucianus under different temperature were:107 43±6 44 KJ/animal/day (17℃),94 76±4 46 KJ/animal/day (22℃),73 96±5 65 KJ/animal/day(27℃),and 62 80±5 15 KJ/animal/day(32℃),respectively. Moreover, the energy intake, digested and assimilated energy of N. confucianus decreased with temperature increase. However, no significant differences on digestibility and assimilation rate of N. confucianus were found among four experimental temperatures. It indicated that, during a range of particular temperatures, N. confucianus might maintain relatively high digestibility by change of digest tract morphology.

气井清防盐垢工艺技术探讨

中原油田文23气田生产过程中有不同程度的结盐垢现象,个别井结垢相当严重,堵塞射孔通道,并由此引起盐卡、盐堵现象,严重影响了气井产量。针对本区块盐垢的成分进行化学分析,对常规的洗盐工艺应用效果进行跟踪调查,提出应用复合防垢剂清除盐垢的新方法,并对复合防垢剂除垢效果进行了室内评价。评价结果表明,应用复合防垢剂能彻底清除井下盐垢。

加蓬盆地盐下断裂构造样式及展布特征

裂谷时期形成的加蓬海岸盆地位于西非被动大陆边缘,地处非洲西海岸,是阿普特时期形成的众多盐盆之一,大体位于北纬1°和南纬4°之间。加蓬盆地中阿普第阶盐构造对后裂谷的沉积物的变形起着重要的作用,在后期逐渐形成了盐下和盐上两种不同的构造样式。由于裂谷内盐下复合盐构造、伴随快速相变的盐上速度场等地震资料问题使得地震资料的地质解释有一定难度,从而造成盐底、盐下构造落实遇到问题。通过对加蓬盐下地层系统的分析和研究,建立了加蓬盆地盐下断裂复杂构造样式及展布特征,为今后的油气勘探提供了有利的参考。