新疆油田车67区块注水井降压增注工艺优化设计  

Process optimization of pressure release and augmented injection of block Che 67 in Xinjiang oilfield

作　　者：邓庄[1] 杨兆中[1] 梁爱国[2] 姚团军[2] 何睿[1] 黄玲[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中国石油新疆油田分公司采油一厂,新疆克拉玛依834000

出　　处：《油气藏评价与开发》2015年第6期46-50,共5页Petroleum Reservoir Evaluation and Development

基　　金：国家自然科学基金项目(51204138)

摘　　要：车67区块于2002年注水开发至今,注水井堵塞严重,日注水量低于配注量,且注水压力高,需进行降压增注。在对该区块进行注水现状分析、注水井伤害机理分析和以往改造措施分析的基础上,提出了交联酸加砂压裂工艺技术,优选了配套的工作液体系及支撑剂,并进行工艺参数优化设计。研究认为,注水井堵塞的主要原因是注入水结垢与固相颗粒超标,在多重介质—复杂岩性储层改造中,交联酸加砂压裂工艺与常规水基压裂工艺相比优势明显。Since 2002, waterflood has been developing in block Che 67. Due to the serious plugging of injection wells, daily water in- jection rate lower than injection allocation rate and high water injection pressure, it needs pressure release and augmented injection. Based on the analysis of water injection situation, damage mechanism of injection wells and previous reform measures in this block, this paper proposes crosslinked acid sand adding fracturing technology, selects matching working fluid system and proppant, and carries out process parameter optimization design. Researches show that, due to injected water scaling and solid particle exceeding, the injection wells plug. During the transformation of multiple media--complex lithologic reservoir, compared with conventional wa- ter base fracturing technology, crosslinked acid sand adding fracturing technology has obvious advantages.

关 键 词：新疆油田 优化设计 交联酸 压裂液 支撑剂 

分 类 号：TE323[石油与天然气工程—油气田开发工程]