玛湖凹陷复杂岩性低渗储层压裂改造技术  

Fracturing technology of low permeability reservoir with complex lithology in Mahu depression

作　　者：曾东初 陈超峰 李轶 贾海正 

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]新疆油田公司勘探事业部,新疆克拉玛依834000 [3]新疆油田公司工程技术研究院,新疆克拉玛依834000

出　　处：《化学工程师》2017年第9期56-60,共5页Chemical Engineer

基　　金：中石油股份公司重点工程技术攻关项目"准噶尔盆地复杂岩性低渗储层试油(含储层改造)配套技术研究"

摘　　要：针对玛湖凹陷百口泉组低孔低渗储层厚度大,且油气显示主要在顶部,下部砂层无高应力遮挡层,压裂改造中裂缝易向下延伸,支撑剂沉降于储层下部等特点。近几年,对于较厚储层的有效动用开展了从二次加砂,到可溶纤维悬砂,以及组合工艺控底铺砂技术。通过不断的完善储层改造工艺技术,实现了优质储层的有效动用。现场研究结果表明,采用组合工艺控底铺砂技术和可溶纤维悬砂技术比二次加砂技术对储层改造的效果更加明显,其中D13井采用组合工艺控底铺砂技术最高日产油40.55m^3·d^(-1),日产气3.07×10^(-3)m^3,试油165d,累计产油2083.11m^3,实现了储层的有效改造。In Mahu depression of Baikouquan formation with low porosity and low permeability reservoir thick- ness, oil and gas shows at the top. There are lithology and stress shielding layer in the underpart of the reservoir, and the fracture tends to extend downward in the fracturing, the proppant is easy deposits in the lower part of the reservoir. In recent years, for the effective use of thick reservoirs, the technology of secondary sand fracturing and soluble fiber suspension and combination of bottom laying sand control is carried out. Through the continuous im- provement of reservoir reconstruction technology, the effective use of high quality reservoirs has been realized. It shows that the bottom sand laying technology of combined process and soluble fiber suspension sand technology is better than that of the secondary sand fracturing. D13 well adopts combination technology to control bottom sand laying technology, the highest daily production oil is 40.55 cubic meters per day, Nissan gas is 3070m3, that pro- ductivity test is 165 days, accumulated oil production 2083.11m3. It has realized the effective transformation of reservoir.

关 键 词：低渗储层 储层改造 二次加砂 纤维悬砂 组合工艺控底铺砂 压裂 

分 类 号：TE348[石油与天然气工程—油气田开发工程]