论文部分内容阅读
阳高寺气田阳43井裂缝系统具有原始地质储量3.69亿m～3,自1974年4月投产至1988年8月底,已采出天然气3.48亿m～3,采出程度达94.3％。该井曾于1983年7月水淹致死,经修井后,又于1986年3月复活,但到1988年9月至1989年4、5月间,生产出现异常,井口压力接近输压,濒临水淹。为此,对阳43井生产现状进行了分析,认为阳43井采出程度虽然高,但地层压力还有6.595MPa,还具有一定的生产能力,如果再借助于新工艺排水采气,则还有潜力可挖。为此,确定了把月平均产气量由42万m～3提高到65万m～3。
The Yanggao Si gas field Yang 43 well fractured system has a primitive geological reserve of 369 million m 3. Since it was put into operation from April 1974 to the end of August 1988, 348 million m 3 of natural gas have been recovered and the recovery rate has reached 94.3%. The well was flooded in July 1983 and after its workover, it was revived in March 1986. However, between September 1988 and April-May 1989, production was abnormal and the pressure at the wellhead was close to the pressure loss. On the verge of flooding. Therefore, the production status of Yang 43 well was analyzed and it was considered that although the production level of Yang 43 well was high, the formation pressure was still 6.595 MPa, and it also had certain productive capacity. If the new process was used to drain the gas, Potential to dig. To this end, it was determined that the monthly average gas production increased from 420,000 m 3 to 650,000 m 3.