Practice of 10 stage fracturing with open hole packer in horizontal well in Well Su75-70-6H
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摘要: 苏里格气田具有低渗、低压、低丰度、低产特性,压裂改造成为苏75区块建产必要手段。对苏里格气田苏75区块第1口水平井——苏75-70-6H井提出了裸眼封隔器分段压裂工艺的整体方案,并首次应用低伤害羧甲基压裂液成功进行了10段压裂施工作业,累计加砂406 m3。目前该井放喷返排顺畅,测试无阻流量高达316.51×104 m3/d,压裂效果显著,标志着华北油田在水平井开发技术上的成功突破,并为各项新技术的进一步推广应用积累了宝贵的经验。Abstract: The “four low” characteristics-low permeability, low pressure, low abundance and low productivity , has made the fracturing as a necessary way of high productivity in Block Su75 in Sulige gas field. Aimed at the first horizontal well-Well Su75-70-6H in Block 75 in Huabei Oilfield, staged fracturing with open hole packer technology was proposed and 10 stage fracturing treatment with 406 cube meters sand using a low damage carboxymethyl fracture fluid were operated successful which made many technical indexes rank first in the whole country. At present, this well choke and back flow smoothly and the primary test of open-flow potential is 1.53 million cube meters per day, which all illustrate the great effect of fracturing. This case marks the breakthrough of horizontal well production technology, and accumulates precise experiences for following deep application of various new technologies.
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Key words:
- staged fracturing /
- Sulige gas field /
- horizontal well /
- open hole packer /
- carboxymethyl fracture fluid
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GUO Jianchun, ZHAO Zhihong, ZHAO Jinzhou, et al. Horizontal well ball staged fracturing technique and field application[J].Oil Drilling & Production Technology, 2009, 31(6): 86-88, 95.
[6]蒋建方,陆红军.新型羧甲基压裂液的研究与应用[J].石油钻采工艺,2009,31(5):65-68.
JIANG Jianfang, LU Hongjun. Research and application of new carboxymethyl fracture fluid[J]. Oil Drilling & Production Technology, 2009, 31(5): 65-68. [1]李兆敏,蔡文斌,张琪,等.水平井压裂裂缝起裂及裂缝延伸规律研究[J].西安石油大学学报,2008,23(5):47-48.
LI Zhaomin, CAI Wenbing, ZHANG Qi, et al. Study on the initiation and propagation laws of the fractures in horizontal well fracturing[J]. Journal of Xi’an Shiyou University, 2008, 23(5): 47-48.
[2]许建国,王峰,刘长宇,等.水平井滑套分压工艺技术及现场应用[J].钻采工艺,2008,31(S0):54-56.
XU Jianguo, WANG Feng, LIU Changyu, et al. Study and application of horizontal fracturing technology with sliding sleeve[J]. Drilling & Production Technology 31(S0): 54-56.
[3]梁凌云,赖海涛,黄建宁.苏里格气田降低压裂伤害工艺技术研究[J].石油化工应用,2009,28(9):50-53.
LIANG Lingyun, LAI Haitao, HUANG Jianning. The study on technology to reduce fracture injury in sulige gasfield[J]. Petrochemical Industry Application, 2009, 28(9): 50-53.
[4]赵振峰,马旭,凌云,等.苏里格气田较大规模压裂改造技术研究[J].新疆石油天然气,2008,4(8):120-125.
ZHAO Zhenfeng, MA Xu, LING Yun, et al. Study on large scale fracturing technology in sulige gasfield[J]. Xinjiang Oil & Gas, 2008, 4(8): 120-125.
[5]郭建春,赵志红,赵金洲,等.水平井投球分段压裂技术及现场应用[J].石油钻采工艺,2009,31(6):86-88,95.
GUO Jianchun, ZHAO Zhihong, ZHAO Jinzhou, et al. Horizontal well ball staged fracturing technique and field application[J].Oil Drilling & Production Technology, 2009, 31(6): 86-88, 95.
[6]蒋建方,陆红军.新型羧甲基压裂液的研究与应用[J].石油钻采工艺,2009,31(5):65-68.
JIANG Jianfang, LU Hongjun. Research and application of new carboxymethyl fracture fluid[J]. Oil Drilling & Production Technology, 2009, 31(5): 65-68. -

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