西南石油大学学报（自然科学版）
西南石油大學學報（自然科學版）
서남석유대학학보（자연과학판）
JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SEIENCE & TECHNOLOGY EDITION)
2015年
1期
51-56
,共6页
腰英台油田%青山口组%裂缝特征%储集层%测井
腰英檯油田%青山口組%裂縫特徵%儲集層%測井
요영태유전%청산구조%렬봉특정%저집층%측정
Yaoyingtai Oilfield%Qingshankou Formation%fracture characteristics%reservoir%logging
腰英台油田位于松辽盆地南部中央拗陷区，其中的1号区块～301号区块的上白垩统青山口组砂岩为裂缝性低渗储集层，裂缝较为发育。通过对岩芯的系统观测、薄片裂缝观察、测井资料解释、碳氧同位素测试等手段对裂缝进行了系统研究，结果表明：腰英台油田青山口组裂缝发育，其中发育程度最高的为青山口组一段II砂组；裂缝长度的主要分布在5～15 cm，宽度主要分布在0.1～1.0 mm，密度平均0.41条/米，大部分裂缝都被全充填，充填物以方解石为主，裂缝倾角主要分布于75?～90?，裂缝方位主要共有4组，分别是NWW（280?）向、NNW（345?）向、NNE（18?）向和NEE（76?）向；微裂缝以宽度小于0.5 mm为主，被方解石或者有机质充填或者半充填，裂缝性质以剪切缝为主，部分发育张性缝；裂缝发育期次主要分为两期，分别为嫩江末期和明水末期。
腰英檯油田位于鬆遼盆地南部中央拗陷區，其中的1號區塊～301號區塊的上白堊統青山口組砂巖為裂縫性低滲儲集層，裂縫較為髮育。通過對巖芯的繫統觀測、薄片裂縫觀察、測井資料解釋、碳氧同位素測試等手段對裂縫進行瞭繫統研究，結果錶明：腰英檯油田青山口組裂縫髮育，其中髮育程度最高的為青山口組一段II砂組；裂縫長度的主要分佈在5～15 cm，寬度主要分佈在0.1～1.0 mm，密度平均0.41條/米，大部分裂縫都被全充填，充填物以方解石為主，裂縫傾角主要分佈于75?～90?，裂縫方位主要共有4組，分彆是NWW（280?）嚮、NNW（345?）嚮、NNE（18?）嚮和NEE（76?）嚮；微裂縫以寬度小于0.5 mm為主，被方解石或者有機質充填或者半充填，裂縫性質以剪切縫為主，部分髮育張性縫；裂縫髮育期次主要分為兩期，分彆為嫩江末期和明水末期。
요영태유전위우송료분지남부중앙요함구，기중적1호구괴～301호구괴적상백성통청산구조사암위렬봉성저삼저집층，렬봉교위발육。통과대암심적계통관측、박편렬봉관찰、측정자료해석、탄양동위소측시등수단대렬봉진행료계통연구，결과표명：요영태유전청산구조렬봉발육，기중발육정도최고적위청산구조일단II사조；렬봉장도적주요분포재5～15 cm，관도주요분포재0.1～1.0 mm，밀도평균0.41조/미，대부분렬봉도피전충전，충전물이방해석위주，렬봉경각주요분포우75?～90?，렬봉방위주요공유4조，분별시NWW（280?）향、NNW（345?）향、NNE（18?）향화NEE（76?）향；미렬봉이관도소우0.5 mm위주，피방해석혹자유궤질충전혹자반충전，렬봉성질이전절봉위주，부분발육장성봉；렬봉발육기차주요분위량기，분별위눈강말기화명수말기。
Yaoyingtai Oilfield is located in the central depression of Shongliao Basin,and the reservoir of Upper Cretaceous in Qingshankou Formation in the 1～301 blocks of Yaoyingtai Oilfield is fractured low-permeability reservoir and develop fracture quite. This paper carries out systematical research about fractures through core observation,slices analysis,the imaging logging data and carbon and oxygen isotope analysis. The study shows that the fracture developed in Qingshankou Formation of Yaoyingtai Oilfield,and the highest degree of development in Qingshankou Formation is II sand set in No.1 section of Qingshankou Formation. Other findings include that the length of fracture distributes between 5～15 cm and the width distributes between 0.1 1mm and the average density is 0.41 strips per meter. Most of fractures are full filled and the majority of fillings is calcite with fracture dip between 75?～90?,the orientation of fracture has mainly 4 groups which includes NWW(280?), NNW(345?),NNE(18?),NEE(76?). While the width of micro-fracture rests under 0.5 mm and filled or half-filled by calcite and organics. The main fracture properties is shear fractures and other part of fracture properties is tension fracture. The fractures has two develop stages,one is formed in the late tectonic movement of the nenjiang formation,and another is formed in the late tectonic movement of MingShui formation.
