Comprehensive Evaluation of Fracability of Tight Sandstone Reservoirs Based

doi:10.3969/J. ISSN.1006-768X.2021.01.13

Drilling & Production Technology ›› 2021, Vol. 44 ›› Issue (1): 61-64.DOI: 10.3969/J. ISSN.1006-768X.2021.01.13

• PRODUCTION TECHNOLOGY • Previous Articles Next Articles

Comprehensive Evaluation of Fracability of Tight Sandstone Reservoirs Based

ZHANG Chong^1,2, XIA Fuguo³, XIA Yuqing⁴, ZHOU Xiaolin¹

1. Petroleum Engineering Environmental Technology Research Institute, SINOPEC Northeast Oil & Gas Branch, Changchun, Jilin 130062, China; 2. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 3. Development Division of PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan 610021, China; 4. Second Gas Recovery Plant, PetroChina Changqing Oilfield Company, Yulin, Shaanxi 719000, China

Online:2021-01-25 Published:2021-01-25

基于层次分析法的致密砂岩储层可压性综合评价

张冲^1,2,夏富国³,夏玉琴⁴,周小林¹

1中国石油化工股份有限公司东北油气分公司石油工程环保技术研究院 2油气藏地质及开发工程国家重点实验室·西南石油大学 3中石油西南油气田分公司开发事业部 4中石油长庆油田分公司第二采气厂

通讯作者: 周小林
作者简介:张冲（1983-），硕士，副研究员，主要从事储层改造相关科研及管理工作。电话：18643069680，E-mail: zhangchong. dbsj@ sinopec. com。
基金资助:
中石化科技部项目“重点地区致密储层特征与改造技术研究”（编号：P15118）。

Abstract

Abstract:

Fracability is an important index to evaluate the feasibility of volume fracturing in shale reservoirs. Tight sandstone reservoirs are similar to shale reservoirs, and the fracability evaluation index is used to determine the difficulty of volume fracturing of tight sandstone reservoirs. However, there is a problem that the evaluation effect is not ideal for the evaluation of tight sandstone reservoir stimulation based on the existing evaluation indexes. There are many parameters for the evaluation of reservoir fracability. Conventional single-factor evaluation results often show that some parameters meet the requirements of volume fracturing, while other parameters do not, so it is difficult to complete the final evaluation of the fracability. In this paper, the analytic hierarchy process of fuzzy mathematics is used. Many factors such as rock mechanics brittleness, mineral brittleness, natural fracture, horizontal principal stress difference, fracture toughness and barrier shielding effect are fully considered. Equivalent matrix is constructed to determine the weight of each factor, and the fracability index formed after parameter standardization is used to comprehensively evaluate the fracability of volume fracturing in tight sandstone reservoirs. Compared with the traditional evaluation method, the analytic hierarchy process is more conducive to guide the selection of wells and layers, and evaluate the gas bearing potential and easy stimulation potential by integrating the geological and engineering factors, which has reference value for the optimal design and operation of tight sandstone reservoir fracturing.

Key words: tight sandstone, volume fracturing, fracability, analytic hierarchy process

摘要： 可压性是评价页岩储层体积压裂可行性的重要指标。致密砂岩储层与页岩储层具有相似性，可借助可压性评价指标判断致密砂岩储层体积压裂的难易程度。但通过现有可压性评价指标判断致密砂岩储层改造存在评价效果不理想的问题，评价储层可压性的参数众多，常规单因素评价结果经常出现部分参数满足体积压裂要求，而另一些参数却不满足，难以完成最终的可压性评价。对此提出采用模糊数学中的层次分析法，充分考虑岩石力学脆性、矿物脆性、天然裂缝、水平主应力差异、断裂韧性以及隔层遮挡效应等多个因素，构造等价矩阵确定各因素权重，利用参数标准化后形成的可压指数，对致密砂岩储层体积压裂可压性进行综合评价。与传统评价方法相比，层次分析法更有利于指导选井选层，综合地质工程双甜点因素，评价其含气潜力和易改造潜力，对致密砂岩储层压裂优化设计和施工具有参考价值。

关键词: 致密砂岩, 体积压裂, 可压性, 层次分析法

ZHANG Chong, XIA Fuguo, XIA Yuqing, ZHOU Xiaolin . Comprehensive Evaluation of Fracability of Tight Sandstone Reservoirs Based[J]. Drilling & Production Technology, 2021, 44(1): 61-64.

张冲, 夏富国, 夏玉琴, 周小林. 基于层次分析法的致密砂岩储层可压性综合评价[J]. 钻采工艺, 2021, 44(1): 61-64.

References

[1]周长静，张燕明，周少伟，等.苏里格致密砂岩气藏水平井体积压裂技术研究与试验[J].钻采工艺，2015，38(1) : 44-47.
[2]唐颖，邢云，李乐忠，等.页岩储层可压裂性影响因素及评价方法[J].地学前缘，2012，19(5) : 356-363.
[3] MULLEN M J, ENDERLIN M N. Fracability index-more than rock properties [C]. SPE Annual Technical Conference and Exhibition, 2012-01-09.
[4]金衍，陈勉，张旭东.利用测井资料预测深部地层岩石断裂韧性[J].岩石力学与工程学报，2001，20(4) : 454-456.
[5]袁俊亮，邓金根，张定宇，等.页岩气储层可压裂性评价技术[J].石油学报，2013，34(3) : 523- 527.
[6] RICKMAN R, MULLEN M J, PETRE J E, et al. A practical use of shale petrophysics for stimulation design optimization: all shale plays are not clones of the barnett shale[C]. SPE Annual Technical Conference and Exhibition, 2008 - 01 - 01.
[7] BRITT L K, SCHOEFFLER J. The geomechanics of a shale play: what makes a shale prospective [C]. SPE Eastern Regional Meeting, 2009 - 01 - 01.
[8]SAATY Thomas L.层次分析法———在资源分配、管理和冲突分析中的应用[M].北京：煤炭工业出版社，1988 : 45-49.
[9]秦吉，张翼鹏.现代统计信息分析技术在安全工程方面的应用———层次分析法原理[J].工业安全与防尘，1999(5) : 44-48.
[10]王汉青，陈军斌，张杰，等.基于权重分配的页岩气储层可压性评价新方法[J].石油钻探技术，2016，44(3) : 88-94.
[11]侯冰，陈勉，王凯，等.页岩储层可压性评价关键指标体系[J].石油化工高等学校学报，2014，27(6) : 42-49.
[12]赵金洲，许文俊，李勇明，等.页岩气储层可行性评价新方法[J].天然气地球科学，2015，26(6) : 1165-1172.

[1]	FAN Yu. Progress and Development Direction for Key Well Engineering Technology in Tight Sandstone in Shaximiao Famation, Sichuan Basin [J]. Drilling & Production Technology, 2022, 45(6): 48-52.
[2]	CHENG Yuhong , LI Xin , CAO Pengliang , ZHANG Lin , DENG Baokang. Research and Application of Polymer Drag Reducer in Deep Tight Sandstone Reservoir [J]. Drilling & Production Technology, 2022, 45(5): 134-138.
[3]	RONG Zhun , DENG Xu, ZHANG Qi , CHEN Pengju, YAO Jianlin, ZHANG Yang , YAN Shuang. Personalized Design of Efficient PDC Bit for Highly Abrasive Sandstone Formation in Northeast Sichuan Basin: A Case Study of Shaximiao Formation in Wubaochang Block [J]. Drilling & Production Technology, 2022, 45(4): 32-37.
[4]	WANG Qiaozhi , JIANG An , SU Yanhui , ZHANG Tongyao , GAO Bo , QI Yumin, . Stress Sensitivity Analysis for Tight Sandstone Reservoir by CT Scanning Technology [J]. Drilling & Production Technology, 2022, 45(4): 56-60.
[5]	GUO Jianchun, ZHOU Hangyu, TANG Tang, ZHANG Tao, . Advances of Experiment and Numerical Simulation Researches on Proppant Transport for Unconventional Reservoir Fracturing [J]. Drilling & Production Technology, 2022, 45(3): 48-54.
[6]	WANG Jian, ZHANG Jingchen, WANG Bo, LIU Hao, KONG Hui, LI Heng. Optimization of Well Pattern Volume Fracturing Parameters for Carboniferous Long Vertical Intervals in Junggar Basin [J]. Drilling & Production Technology, 2022, 45(1): 70-74.
[7]	WANG Wen, LIU Jiayi, CHEN Jie, HUANG Bin . ROP Increasing Method for Tight Sandstone in Shaximiao Formation of Jinhua-Qiulin Block [J]. Drilling & Production Technology, 2021, 44(5): 34-38.
[8]	LIU Xugang, ZHOU Yongyi, ZHANG Junqiang, XIAO Wenlian. Experimental Study on Properties of Wastewater Reinjection of Tight Sandstones in Daniudi Gas Field [J]. Drilling & Production Technology, 2020, 43(6): 100-102.
[9]	LI Zijie, ZHAO Hongshan, FENG Guangtong, HE Linhu, JIANG Wei, PENG Ye. Experimental, Optimization of Diamond Parameters for the Impregnated Diamond Bits Used in Tight Sandstone Formation [J]. Drilling & Production Technology, 2020, 43(5): 12-15.
[10]	WU Shunlin, LIU Hanbing, LI Xianwen, TANG Meirong, ZHANG Xiang, BAI Xiaohu, LI Xiaoyan. Test and Application of Subdivision Fracture Control Fracturing for tight oil horizontal Wells in Ordos Basin [J]. Drilling & Production Technology, 2020, 43(3): 53-55.
[11]	CHEN Shidong, HUI Fang, WEI Wen, LI Kaikai, WEI Jianbing, PANG Maoyuan, LIANG Zihan. Experimental Research on Oil Displacement of Clean Fracturing Flow-back Fluid in Tight Sandstone Reservoir [J]. Drilling & Production Technology, 2020, 43(3): 100-103.
[12]	. Experimental study on proppant settlement regularity in fractures during volume fracturing [J]. Drilling & Production Technology, 2019, 42(5): 39-42.
[13]	. Practice of full bore staged fracturing stimulation for horizontal wells in tight sandstone gas reservoirs and knowledge obtained [J]. Drilling & Production Technology, 2019, 42(5): 62-65.

Comprehensive Evaluation of Fracability of Tight Sandstone Reservoirs Based

基于层次分析法的致密砂岩储层可压性综合评价

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 13

Recommended Articles

Metrics

Comments