海上低孔低渗气田抗高温完井产能释放液的研究

张崇; 任冠龙; 靳书凯; 董钊; 孟文波

doi:10.3969/j.issn.1001-5620.2018.06.023

海上低孔低渗气田抗高温完井产能释放液的研究

doi: 10.3969/j.issn.1001-5620.2018.06.023

中海石油(中国)有限公司湛江分公司, 广东湛江 524057

基金项目:

“十三五”国家科技重大专项“南海西部海域低渗油藏勘探开发关键技术”（2016ZX05024）部分研究成果。

详细信息

作者简介:
张崇,现在主要从事海上钻完井工艺、深水油气测试方面的研究工作。电话18688372662;E-mail:zhangchong3@cnooc.com.cn

中图分类号: TE357.2
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- 文章访问数: 718
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出版历程
- 收稿日期: 2018-08-17
- 刊出日期: 2018-11-30

Study on High Temperature Completion Stimulation Fluid for Offshore Low Porosity Low Permeability Gas Field

Zhanjiang Branch Company, CNOOC, Zhanjiang, Guangdong 524057

摘要

摘要: 低孔低渗气田的主要产能释放措施是酸化和压裂，而海上油气田受完井方式、作业成本、安全要求等因素制约，储层改造措施技术有限。为解决文昌低孔低渗高温气田产能释放问题，通过对酸化以及储层保护等多方面研究，分别构建了具有酸化、破胶、扩孔和防水锁等功效的适合文昌气田定向井和水平井的新型完井产能释放液体系，体系酸溶率7.70%~12.99%，深部酸化能力强，可有效降低毛管压力和增加助排性，系列流体污染后渗透率恢复值大于90%，且二次污染后渗透率恢复值仍保持稳定，具有良好的储层改造和保护效果。完井产能释放液体系在文昌气田应用后，各井清井测试产能平均达到配产产量的1.7倍，充分释放了低孔低渗高温气田的产能需求，为类似海上低渗气田的开发提供了借鉴。
- 低渗 /
- 高温 /
- 产能释放 /
- 酸溶率 /
- 储层保护
Abstract: Reservoir acidization and fracturing are two common stimulation measures used to enhance the productivity of low porosity low permeability wells. Offshore gas fields have less reservoir stimulation measures because of limitations in well completion method, job cost and safety. To improve the productivity of the high temperature low porosity low permeability gas field in Wenchang, a new completion stimulation fluid suitable for directional well and horizontal well has been developed. This stimulation fluid has the abilities of acidization, gel breaking, porosity improvement and anti-water blocking. Percent acid solubility of the stimulation fluid for formation solids is between 7.70% and 12.99%. This stimulation fluid is capable of in-depth acidizing and effectively reducing capillary pressure and enhancing cleanup of acidizing residues. Laboratory experimental results showed that the permeability of a rock sample contaminated by the stimulation fluid was resumed by more than 90%, and the permeability recovery of the rock sample was steady after second contamination by the stimulation fluid. Application of the stimulation fluid in Wenchang gas field gave birth to a production rate that is 1.7 times of the allocated production rate of each well, substantially releasing the productivity of the high temperature low porosity low permeability wells and providing a clue for the development of similar low permeability offshore gas fields.
- Low porosity /
- High temperature /
- Productivity releasing /
- Acid solubility /
- Reservoir protection

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参考文献(9)

[1]	舒勇,鄢捷年,李志勇,等. 低孔低渗高压砂岩储层损害机理及保护技术研究[J]. 钻井液与完井液,2008, 25(6):17-19. SHU Yong,YAN Jienian,LI Zhiyong,et al.Studies of the damaging mechanism and protection techniques of low porosity low permeability and high pressure reservoirs[J]. Drilling Fluid & Completion Fluid,2008,25(6):17-19.
[2]	武恒志. 低渗油气田高效开发钻井技术研究与实践[J]. 石油钻探技术,2012,40(3):1-6. WU Hengzhi. Drilling technology for highly efficient development of low permeability oil & gas fields[J]. Petroleum drilling techniques,2012,40(3):1-6.
[3]	郭少儒,张晓丹,蔡华等.东海低渗气田高效开发面临的挑战及其对策[J].中国海上油气,2013,25(2):46-48. GUO Shaoru,ZHANG Xiaodan,CAI Hua,et al. The challenges to efficient development of the low permeability gas fields and their countermeasures in the East China Sea[J].China Offshore Oil and Gas,2013, 25(2):46-48.
[4]	BENNION D B,THOMAS F B, MA T.Formation damage processes reducing productivity of low permeability gas reservoirs[J].SPE 60325,2000.
[5]	罗刚,任坤峰,邢希金,等. 低孔低渗储层完井改造一体化工作液的研究与应用[J]. 钻井液与完井液, 2017,34(3):117-121. LUO Gang,REN Kunfeng,XING Xijin,et al.Study and application of a composite well completion and stimulation fluid for low porosity and low permeability reservoirs[J].Drilling Fluid & Completion Fluid,2017, 34(3):117-121.
[6]	彭科翔,李亭,彭安钰. 超低渗深井新型射孔液研究[J]. 当代化工,2016,45(10):2343-2346. PENG Kexiang,LI Ting,PENG Anyu.Research on new perforating fluid of ultra-low permeability reservoirs[J]. Contemporar y Chemical Industr y,2016,45(10):2343-2346.
[7]	蒋官澄,王乐,张朔等. 低渗特低渗油藏钻井液储层保护技术[J]. 特种油气藏,2014,21(1):113-116. JIANG Guancheng,WANG Le,ZHANG Shuo,et al. Drilling fluid technology to protect the formation in low/ultra-low permeability reservoirs[J].Special Oil & Gas Reservoirs,2014,21(1):113-116.
[8]	王昌军,王正良,罗觉生.南海西部油田低渗透储层防水锁技术研究[J].石油天然气学报,2011,33(9):113-115. WANG Changjun,WANG Zhengliang,LUO Juesheng. Technical study on anti-water lock in low permeability reservoirs of oilfield in the west of south china sea[J]. Journal of Oil and Gas Technology,2011,33(9):113-115.
[9]	贾虎,王瑞英,杨洪波,等.低渗砂岩储层正压射孔中水锁损害试验研究[J].石油钻探技术,2010,38(2):76-79. JIA Hu,WANG Ruiying,YANG Hongbo,et al. Experimental study of water-block from overbalance perforation in low-permeable sandstone[J].Petroleum Drilling Techniques,2010,38(2):76-79.

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海上低孔低渗气田抗高温完井产能释放液的研究

doi: 10.3969/j.issn.1001-5620.2018.06.023

作者简介:
张崇,现在主要从事海上钻完井工艺、深水油气测试方面的研究工作。电话18688372662;E-mail:zhangchong3@cnooc.com.cn

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Study on High Temperature Completion Stimulation Fluid for Offshore Low Porosity Low Permeability Gas Field

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海上低孔低渗气田抗高温完井产能释放液的研究

doi: 10.3969/j.issn.1001-5620.2018.06.023

作者简介: 张崇,现在主要从事海上钻完井工艺、深水油气测试方面的研究工作。电话18688372662;E-mail:zhangchong3@cnooc.com.cn

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出版历程

Study on High Temperature Completion Stimulation Fluid for Offshore Low Porosity Low Permeability Gas Field

计量

出版历程

目录

作者简介:
张崇,现在主要从事海上钻完井工艺、深水油气测试方面的研究工作。电话18688372662;E-mail:zhangchong3@cnooc.com.cn