Tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method
The invention provides a tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method. The tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method comprises the following steps that S1, pad acid is selected to pre...
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| creator | LI SHUSHENG ZHOU CHANGJING ZHU LI'AN MOU CHUNGUO HE MINGFANG ZHANG YANMING GU YONGHONG MA XINXING ZHAO QIANYUN MA XU |
| description | The invention provides a tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method. The tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method comprises the following steps that S1, pad acid is selected to pretreat a reservoir to remove pore filling blockage; S2, capacity-increasing transformation is conducted on the reservoir by adopting slickwater; and S3, fracturing transformation construction is conducted by adopting relatively large construction displacement. According to the tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method, the pad acid is used for pretreatment, filling damage in pores is relieved, pore connectivity and permeability of the reservoir are improved, small-displacement injection of a low-damage slickwater system is adopted for reservoir compatibilization, the stratum pressure coefficient is increased, certain tensile fatigueis formed for rock, tensi |
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The tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method comprises the following steps that S1, pad acid is selected to pretreat a reservoir to remove pore filling blockage; S2, capacity-increasing transformation is conducted on the reservoir by adopting slickwater; and S3, fracturing transformation construction is conducted by adopting relatively large construction displacement. 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The tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method comprises the following steps that S1, pad acid is selected to pretreat a reservoir to remove pore filling blockage; S2, capacity-increasing transformation is conducted on the reservoir by adopting slickwater; and S3, fracturing transformation construction is conducted by adopting relatively large construction displacement. According to the tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method, the pad acid is used for pretreatment, filling damage in pores is relieved, pore connectivity and permeability of the reservoir are improved, small-displacement injection of a low-damage slickwater system is adopted for reservoir compatibilization, the stratum pressure coefficient is increased, certain tensile fatigueis formed for rock, tensi</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CALCULATING CHEMISTRY COMPUTING COUNTING DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRIC DIGITAL DATA PROCESSING FIXED CONSTRUCTIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS PHYSICS POLISHES |
| title | Tight sandstone reservoir pretreatment blockage-removing capacity-increasing fracturing design method |
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