雷特堵漏钻井液在低承压地层试验  

Test Leite plugging drilling fluid technology in low pressure formation

作　　者：刘建华 杨灿 吴华[2] 刘英 祝小林 LIU Jian-hua;YANG Canl;WU Hua;LIU Ying;ZHU Xiao-lin(No.1 Drilling Engineering Company,BHDC,CNPC,Tianjin 300280,China;Oil Production Technology Institute of Dagang Oilfield,Tianjin 300280,China)

机构地区：[1]中石油渤海钻探工程有限公司第一钻井工程分公司,天津300280 [2]大港油田采油工艺研究院钻井工艺室,天津30080

出　　处：《化学工程师》2018年第11期47-50,共4页Chemical Engineer

基　　金：中国石油集团渤海钻探工程公司工艺研究项目(No.2018Z Y04Y)

摘　　要：低承压地层是由于特殊岩性的形成、压实过程中,未能形成良好的胶结和密闭构造,在后期地质运动中,发生岩变,导致地层承压能力较低,易发生井漏、井塌等风险,还可能造成油气储层的破坏。大港油田官962-17断块位的沙河街组的生物灰岩、玄武岩、中生界安山岩岩体发育地层,为典型低承压地层,钻井中常出现严重漏失;本文针对该区块低承压地层井漏状况和发生井漏的原因进行了分析,依据官962-17断块生物灰岩、玄武岩、安山岩地层特性,在官962-17断利用雷特高承压堵漏剂的现场试验,取得很好的效果。The ability of low pressure formation is due to the special rock in the process of formation, com-paction, not good cemented together and forms a closed structure. In the late geological movement, formation rock changes lead to lower formation pressure, easy occurrence of well leakage, well collapse and other risks, and may also destroy oil and gas reservoirs.Dagang oil field Guan 962-17 faultblock belongs to the structural reservoir, the Shahejie formation containing biological limestone, containing basalt, Mesozoic andesite, is a typical low pressure formation, and even serious leakage accidents. This paper analyzes the situation and causes of well leakage in low pressure formation in this block. The formation characteristics of limestones, basalt and andesite are analyzed. Field test of Leite high pressure plugging agent has been carried out and good results have been achieved.

关 键 词：低承压 官962-17断块 漏失 特殊岩性 承压堵漏 

分 类 号：TE249[石油与天然气工程—油气井工程]