准噶尔盆地东南缘煤层气勘探目标优选  

Selection of CBM Exploration Targets in Southeastern Margin of Junggar Basin

作　　者：许婷[1] 伏海蛟[1] 马英哲 陈宝利[1] 浮昀 Xu Ting Fu Haijiao Ma Yingzhe Chen BaoliI Fu Yun(China University of Geosciences （ Beijittg ） , Beijing 100083, China China National Oil and Gas Exploration and Development Corporation, Beijing 102235, China PetroChina Changqing Oilfield Company, Xi ＇ an, Shanxi 710000, China)

机构地区：[1]中国地质大学(北京),北京100083 [2]中国石油海外勘探开发公司,北京102235 [3]中国石油长庆油田分公司,陕西西安710000

出　　处：《特种油气藏》2017年第2期18-23,共6页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项"准噶尔盆地南缘中低煤阶煤层气赋存机制及资源可采性"(2016ZX0543001-004);中国地质调查局战略选区项目"准东地区低煤阶煤层气成藏条件与控制因素研究"(1211302108025-2-3)

摘　　要：为提高"十三五"新疆煤层气的勘探效率,系统收集了准噶尔盆地东南缘(准南煤田与准东煤田)煤层气相关地质资料,从煤层厚度、含气性、顶板岩性及水文地质等条件出发,讨论了研究区煤层气富集成藏条件,并得出该区已具备形成大型煤层气藏的初步结论。此外,从资源条件、储层条件与保存条件出发,优选煤层含气量、煤层厚度、镜质组含量、煤化作用程度以及兰氏体积等12个三级评价指数,建立了适用于该区煤层气选区评价的数学模型,优选出阜康、硫磺沟、齐古等7个煤层气勘探有利区,并对其煤层气勘探潜力进行排序,为准噶尔盆地东南缘煤层气下一步勘探部署提供地质依据。To improve the exploration efficiency of coalbed methane （CBM} in Xinjiang in the period of the thir- teenth ＂Five-Year Plan＂, the geologic data related with CBM in southeastern margin of Junggar Basin （South Junggar Coal Field and East Junggar Coal Field） were collected systematically. Then, CBM accumulation and en- richment eonditions in the study area were discussed from the aspects of coal bed thickness, gas bearing property, roof lithology and hydrologic geology. And it is preliminarily coneluded that this area has the conditions for the for- mation of large CBM reservoirs. 12 third-level evaluation indicators were selected from the aspects of resource con- ditions, reservoir conditions and preservation conditions, such as gas content of coal bed, coal bed thickness, vit- finite content, eoalification degree and Langmuir volume. The mathematical model applicable to CBM area selection and evaluation was built, 7 favorable CBM exploration areas were selected, including Fukang, Liuhuanggou and Qigu, and they were ranked in terms of CBM exploration potential. The research results provide the geological basis for the following CBM exploration arrangement in the southeastern margin of Junggar Basin.

关 键 词：煤层气 成藏条件 选区评价 西山窑组 准噶尔盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探]