水平井大规模连续压裂施工技术研究

发布时间：2018-01-29 04:57

  本文关键词： 压裂 大规模 连续 水平井　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：吉林油田在“十二五”期间规划了“681”发展目标以及“1356”发展思路,预计在2015年完成突破油气产量千万吨的目标。吉林油田在“十二五”期间为实现保证千万吨目标的完成,将在英台断陷、王府及德惠断陷、长岭断陷、孤店断陷和双辽断陷等地,探明天然气地质储量3000亿方,发现石油储量2亿吨,动用石油储量2.448亿吨,新建产能686万吨,生产原油3240万吨,天然气生产能力达到50亿方。由于“十二五”期间勘探开发目标以非常规致密油气藏为主,火山岩等特殊储层类型油气藏所占比例逐年加大,产能建设区难采储量比例越来越大,储量有效动用及开发难度不断加大,压裂技术面临新的挑战,油气资源转化、储量升级和经济开发,关键在于非常规致密油气藏压裂改造技术的提升与应用。因此,“水平井钻井+完井+分段压裂一体化”这种压裂模式逐渐成为低渗透油气储量合理动用的重要手段。根据吉林油田探区施工过程中储层的特点,发现在压裂改造过程中存在压力大、施工的时间过长(单层/段施工时间2-3h)、加砂困难、冬季温度较低(零下25℃)导致施工难度加大等施工难点,研究“水平井大规模连续压裂施工技术”成为满足吉林探区开发的重中之重。
[Abstract]:Jilin Oilfield has planned "681" development target and "1356" development idea during the 12th Five-Year Plan period. In 2015, the target of ten million tons of oil and gas production is expected to be achieved. In order to ensure the completion of the ten million tons target during the 12th Five-Year Plan period, Jilin Oilfield will be in Yingtai fault depression, Wangfu and Dehui fault depression, Changling fault depression. Gutian fault depression and Shuangliao fault depression and other places proved the geological reserves of natural gas 300 billion square, found 200 million tons of oil reserves, oil reserves of 244.8 million tons, new production capacity of 6.86 million tons. 32.4 million tons of crude oil is produced, and the natural gas production capacity reaches 5 billion square side. The exploration and development targets during the 12th Five-Year Plan period are mainly unconventional tight reservoirs. The proportion of oil and gas reservoirs of volcanic rocks and other special reservoir types is increasing year by year, the proportion of hard-to-recover reserves in productivity construction areas is increasing, the effective production and development of reserves is becoming more and more difficult, and fracturing technology is facing new challenges. The key to oil and gas resource conversion, reserve upgrading and economic development lies in the promotion and application of fracturing technology in unconventional tight reservoirs. The fracturing model of "horizontal well drilling and completion fracturing integration" has gradually become an important means of rational production of low permeability oil and gas reserves. According to the characteristics of reservoir in the exploration area of Jilin Oilfield. It is found that there are some difficulties in fracturing process, such as high pressure, too long construction time (single layer / segment construction time 2-3 h), difficult sand addition, low winter temperature (minus 25 鈩，

本文编号：1472588