商741火成岩裂缝性油藏屏蔽暂堵技术研究  

TEMPORARILY PLUGGING AND SHEILDING AGENT FOR DRILLING IN IGEOUS FRACTURED RESERVOIR ZONES OF SHANG 741 AND ITS EVALUATING TECHNIQUE

作　　者：任占春[1] 张光焰[1] 邱正松[2] 王富华[2] 丁锐[2] 

机构地区：[1]胜利石油管理局采油工艺研究院,山东东营257000 [2]石油大学(华东)石油工程系,山东东营257062

出　　处：《油田化学》1999年第4期306-307,309,共3页Oilfield Chemistry

摘　　要：针对商７４１ 火成岩裂缝性油藏的储层特点，提出了裂缝类油藏屏蔽暂堵的室内评价方法，并研制了一种广谱型屏蔽暂堵液配方。该暂堵液的暂堵率和解堵率均为１００ ％ ，适用于所有的裂缝性油藏。The presented laboratory evaluating installation is of core flow type. 1-4 axial fractures of wideness 0.05-0.5 mm are made on the outer surfaces of cylinderical cores, natural or artificial, following the principle of Brazilian test of rock. With these fractured cores, a series of temporarily plugging and sheilding compositions are investigated to determine their plugging rate D for aqueous phase and permeability recovery H for oil phase. It is shown that the combination of a particulated oil soluble resin, TR 5, and fibrious material, HPS, in a standard brine with dispersant and wetting agent added is effective in temporarily plugging and sheilding of the fractured core samples and can be used in igeous (as in Block Shang 741) and other fractured reservoirs.

关 键 词：暂堵剂 火成岩油藏 裂缝性油藏 油层保护 

分 类 号：TE254.4[石油与天然气工程—油气井工程] TE358.3