涩北气田纤维复合高压充填无筛管防砂技术研究与应用  

APPLICATION AND STUDY OF FINE-SILTY SAND CONTROL TECHNIQUE USING FIBER-COMPLEX HIGH PRESSURE PACK IN SEBEI GAS RESERVOIR

作　　者：周福建[1,2] 杨贤友[3] 熊春明[3] 李海平 宗贻平 孙凌云 汪君臣 

机构地区：[1]石油大学(华东) [2]中国石油勘探开发研究院,北京100083 [3]中国石油勘探开发研究院 [4]中国石油勘探与生产分公司 [5]中国石油青海油田分公司

出　　处：《天然气地球科学》2005年第2期210-213,共4页Natural Gas Geoscience

基　　金：国家"973"项目"低效气藏高效改造与保护的基础研究"(编号 :2 0 0 1CB2 0 910 7)资助

摘　　要：涩北气田是我国第四大气田,其储层为第四系粉砂岩和泥质粉砂岩。这些岩石胶结疏松,出砂严重,气水层间互,防砂难度极大,属世界性难题。研究了纤维复合高压充填无筛管防细粉砂技术系统——储层预处理技术(使用带正电支链的软纤维吸附细粉砂颗粒成颗粒集合体来稳砂)、纤维复合体技术(纤维-树脂砂三维网状复合体挡砂)和高压充填技术(不压开地层充填纤维化合物在水泥环外形成类筛管,达到无筛管防砂目的,并解除近井带损害和增加泄气面积)。该技术可达到防砂和增产双重目的,在涩北气田涩7- 1 - 4井应用取得很好的效果,不出砂产量平均增产到原来的2 .1倍。介绍了纤维复合高压充填无筛管防细粉砂技术的理论、实验。Sebei gas field is the fourth one in China. Its pay-zone is unconsolidation Quaternary fine-silty and dirty sandstones, alternating with gas and water layers, with severe sand production. Grain size of the sand is very fine, so sand control here is very difficult, it is cosmopolitan puzzle. We have succeeded in applying a series of techniques of comprehensive sand control using fiber-complex pack. The technique uses formation pretreatment (soft fiber, its branched chain with electric charge adsorbs on fine siltstones and forms big aggregations of fine siltstones.). special fibers and resin-coated sand complex to stabilize pack. Using high pressure pack to form the fiber complex annularity of well and to increase productivity, It bypasses near well bore damage. This combined rehabilitation technique enables screenless sand control completion. The technique was applied in Se 7-1-4 well; the results are remarkable. After the sand control treatment, sand was not found even the gas production rate is 2 1 times that of before. This paper presents lab study, operation design, well selection principle, field operation and result analysis about the sand control technique.

关 键 词：纤维复合 高压充填 无筛管防砂 储层预处理 涩北气田 油气开采 

分 类 号：TE352[石油与天然气工程—油气田开发工程]