气井分层测压及调控技术

ZONAL PRESSURE TESTING AND REGULATING-CONTROLLING TECHNOLOGIES FOR GAS WELLS

采用笼统生产和笼统测试工艺制度不能充分发挥气田不同储层的潜能，而且对于一些出砂、产水的气井无法进行有效控制；测试工艺仅局限于笼统的测试方法，无法测得分层资料。气井分层测压及调控技术可实现气井的分层开采和分层测试。应用该技术可准确测得3—4个层段的分层压力资料，通过分析所测得的测试资料和调控井下气嘴大小，能有效控制气井的出水、出砂，减少层间干扰，增加气层的动用程度，提高气井的产气量和最终采收率。

Commingled production and testing technologies applied in gasfields can1 completely tap the potentials of different layers and even worse can ＇ t effectively control the inflows of both sand and water; the testing technology is limited in commingled testing method and has no way to obtain zonal data. Zonal pressure testing and regulatingcontrolling technologies for these gas wells can realize the zonal production and test. With the help of the technique, the zonal pressure data of 3 to 4 layers can be accurately measured. Through analyzing the tested data and regulating or controlling the size of gas nipple, the productions of both sand and water can be perfectly controlled the interlayer interferences can be reduced, so the developed degree of the gas reservoirs can be increased and furthermore both the gas production and ultimate recovery can be enhanced in the end.