油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2013年
1期
75-78
,共4页
页岩气%清水压裂%体积压裂%脆性指数%小型压裂%返排优化
頁巖氣%清水壓裂%體積壓裂%脆性指數%小型壓裂%返排優化
혈암기%청수압렬%체적압렬%취성지수%소형압렬%반배우화
shale gas%water-fracs%SRV%brittleness index%mini-fracturing%flowback optimization
湘页1井是位于湖南境内的一口页岩气勘探重点井，页岩层段气测显示良好，孔隙度和渗透率低，需要大规模压裂释放页岩气。根据岩石特征研究，湘页1井页岩脆性矿物含量高、主应力差异小、天然裂缝发育，体积压裂适应性强。该井目的层埋藏浅，施工摩阻低，采用清水代替滑溜水进行压裂，施工用液1520 m3，累计加砂82 m3，压后最高产气量2700 m3/d，为今后页岩气井压裂施工起到一定的借鉴作用。
湘頁1井是位于湖南境內的一口頁巖氣勘探重點井，頁巖層段氣測顯示良好，孔隙度和滲透率低，需要大規模壓裂釋放頁巖氣。根據巖石特徵研究，湘頁1井頁巖脆性礦物含量高、主應力差異小、天然裂縫髮育，體積壓裂適應性彊。該井目的層埋藏淺，施工摩阻低，採用清水代替滑霤水進行壓裂，施工用液1520 m3，纍計加砂82 m3，壓後最高產氣量2700 m3/d，為今後頁巖氣井壓裂施工起到一定的藉鑒作用。
상혈1정시위우호남경내적일구혈암기감탐중점정，혈암층단기측현시량호，공극도화삼투솔저，수요대규모압렬석방혈암기。근거암석특정연구，상혈1정혈암취성광물함량고、주응력차이소、천연렬봉발육，체적압렬괄응성강。해정목적층매장천，시공마조저，채용청수대체활류수진행압렬，시공용액1520 m3，루계가사82 m3，압후최고산기량2700 m3/d，위금후혈암기정압렬시공기도일정적차감작용。
Well Xiangye-1 is one of the key exploration shale gas wells within Hunan, which has high maturity and total organic con-tent, but low porosity and permeability. It needs large scale fracturing to release shale gas. According to rock characteristics, well Xiangye-1 has high brittle mineral content and small differences of principal stress, and is suitable for SRV. For the reason of shal-low buried target layer and low fluid friction, water was used instead of slick-water. The total water volume is 1 520 m3, the proppant is 82 m3, and post-fractured gas production is 2 700 m3/d. It has certain references for the future stimulation of shale gas well.
