超长跨距多点起爆负压射孔技术在海上油田的应用

曾春珉; 韦龙贵; 黄亮; 冯雪松; 简成

doi:10.13639/j.odpt.2016.02.010

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超长跨距多点起爆负压射孔技术在海上油田的应用

曾春珉, 韦龙贵, 黄亮, 冯雪松, 简成

文章导航 > 石油钻采工艺 > 2016 > 38(2): 181-185

曾春珉, 韦龙贵, 黄亮, 冯雪松, 简成. 超长跨距多点起爆负压射孔技术在海上油田的应用[J]. 石油钻采工艺, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010

引用本文:

曾春珉, 韦龙贵, 黄亮, 冯雪松, 简成. 超长跨距多点起爆负压射孔技术在海上油田的应用[J]. 石油钻采工艺, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010

ZENG Chunmin, WEI Longgui, HUANG Liang, FENG Xuesong, JIAN Chen. Application of negative-pressure perforation technique with multiple igniters over super-long span in offshore oilfields[J]. Oil Drilling & Production Technology, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010

Citation:

ZENG Chunmin, WEI Longgui, HUANG Liang, FENG Xuesong, JIAN Chen. Application of negative-pressure perforation technique with multiple igniters over super-long span in offshore oilfields[J]. Oil Drilling & Production Technology, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010

超长跨距多点起爆负压射孔技术在海上油田的应用

doi: 10.13639/j.odpt.2016.02.010

1.
中海石油中国有限公司湛江分公司
2.
中海油能源发展股份有限公司工程技术湛江分公司

详细信息

中图分类号: TE257+.1

Application of negative-pressure perforation technique with multiple igniters over super-long span in offshore oilfields

1.
Zhanjiang Branch of CNOOC Ltd., Zhanjiang, Guangdong 524057, China
2.
Zhanjiang Branch of CNOOC Energy Tech-Drilling &

摘要: 现有多级射孔技术管柱结构复杂、传爆效率和可靠性较低、成本较高、难以实现负压射孔等问题限制了其在海上油田的推广应用，为此，对常规单级开孔装置进行改进，研制出了多级开孔装置，与旁通接头、液压延时点火头、RTTS 封隔器等工具配合，形成了超长跨距多点起爆负压射孔技术。多级开孔装置可通过内置滑套实现各级点火头引爆后再制造负压，具备一趟管柱负压射开所有层段的功能，满足多射孔层段、大层间距（可超过500 m）的射孔要求，并且工艺原理简单、安全可靠。该技术在南海西部涠洲A 油田6 口井进行了成功应用，与常规负压射孔作业相比，作业时效提高了51.3%，成本降低了17.68%。
- 超长距离 /
- 长夹层段 /
- 多层段 /
- 负压射孔 /
- 海上油田
Abstract: Pipe strings for existing multi-stage perforation techniques are characterized by complicated structures, low detonation efficiencies, poor reliability, high operation costs and difficulties in their application in negative-pressure perforation. Consequently, applicability of such pipe-strings in offshore oilfields is limited. In this regard, conventional single-stage perforation devices were modified to develop multi-stage perforation devices. Combined with bypassing joints, hydraulic delayed igniter, RTTS packer and other tools, the negative-pressure perforation technique with multiple igniters over super-long span was developed. Through the integral slid sleeve, the multi-stage perforation device can generate negative pressures after detonation of multiple igniters. In this way, all target intervals can be perforated in one single trip under negative pressure to satisfy demands related to perforation in multiple intervals with significant interval distances (above 500 m). The newly developed device is characterized by simplified structures, safety, reliability. The device has been successfully deployed in 6 wells in Weizhou A Oilfield in western part of South China Sea. These operating time increased by 51.3% and costs decreased by 17.68%.
- super-long span /
- long interbedded interval /
- multiple intervals /
- negative-pressure perforation /
- offshore oilfields

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超长跨距多点起爆负压射孔技术在海上油田的应用

doi: 10.13639/j.odpt.2016.02.010

1. 中海石油中国有限公司湛江分公司

2. 中海油能源发展股份有限公司工程技术湛江分公司

收稿日期: 2019-05-18
修回日期: 2019-05-18
刊出日期: 2016-05-10

中图分类号: TE257+.1

关键词:

多层段 /

摘要: 现有多级射孔技术管柱结构复杂、传爆效率和可靠性较低、成本较高、难以实现负压射孔等问题限制了其在海上油田的推广应用，为此，对常规单级开孔装置进行改进，研制出了多级开孔装置，与旁通接头、液压延时点火头、RTTS 封隔器等工具配合，形成了超长跨距多点起爆负压射孔技术。多级开孔装置可通过内置滑套实现各级点火头引爆后再制造负压，具备一趟管柱负压射开所有层段的功能，满足多射孔层段、大层间距（可超过500 m）的射孔要求，并且工艺原理简单、安全可靠。该技术在南海西部涠洲A 油田6 口井进行了成功应用，与常规负压射孔作业相比，作业时效提高了51.3%，成本降低了17.68%。

English Abstract

Application of negative-pressure perforation technique with multiple igniters over super-long span in offshore oilfields

1. Zhanjiang Branch of CNOOC Ltd., Zhanjiang, Guangdong 524057, China

2. Zhanjiang Branch of CNOOC Energy Tech-Drilling &

Received Date: 2019-05-18
Rev Recd Date: 2019-05-18
Publish Date: 2016-05-10

Keywords:

Abstract: Pipe strings for existing multi-stage perforation techniques are characterized by complicated structures, low detonation efficiencies, poor reliability, high operation costs and difficulties in their application in negative-pressure perforation. Consequently, applicability of such pipe-strings in offshore oilfields is limited. In this regard, conventional single-stage perforation devices were modified to develop multi-stage perforation devices. Combined with bypassing joints, hydraulic delayed igniter, RTTS packer and other tools, the negative-pressure perforation technique with multiple igniters over super-long span was developed. Through the integral slid sleeve, the multi-stage perforation device can generate negative pressures after detonation of multiple igniters. In this way, all target intervals can be perforated in one single trip under negative pressure to satisfy demands related to perforation in multiple intervals with significant interval distances (above 500 m). The newly developed device is characterized by simplified structures, safety, reliability. The device has been successfully deployed in 6 wells in Weizhou A Oilfield in western part of South China Sea. These operating time increased by 51.3% and costs decreased by 17.68%.

曾春珉, 韦龙贵, 黄亮, 冯雪松, 简成. 超长跨距多点起爆负压射孔技术在海上油田的应用[J]. 石油钻采工艺, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010

引用本文:

曾春珉, 韦龙贵, 黄亮, 冯雪松, 简成. 超长跨距多点起爆负压射孔技术在海上油田的应用[J]. 石油钻采工艺, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010

Citation:

ZENG Chunmin, WEI Longgui, HUANG Liang, FENG Xuesong, JIAN Chen. Application of negative-pressure perforation technique with multiple igniters over super-long span in offshore oilfields[J]. Oil Drilling & Production Technology, 2016, 38(2): 181-185. doi: 10.13639/j.odpt.2016.02.010