[1]李軍龍  李德旗  朱炬輝  石孝志  張劍  焦亞軍.復雜頁巖氣井無限級砂塞分段壓裂先導性試驗[J].石油鉆采工藝,2017,39(5):633-637.[doi:10.13639/j.odpt.2017.05.018]
 LI Junlong,LI Deqi,ZHU Juhui,et al.Pilot test on infinite-order sand plug staged fracturing of complex shale gas wells[J].Oil Drilling & Production Technology,2017,39(5):633-637.[doi:10.13639/j.odpt.2017.05.018]
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復雜頁巖氣井無限級砂塞分段壓裂先導性試驗
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《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
39卷
期數:
2017年5期
頁碼:
633-637
欄目:
油氣開采
出版日期:
2017-09-20

文章信息/Info

Title:
Pilot test on infinite-order sand plug staged fracturing of complex shale gas wells
文章編號:
1000 – 7393( 2017 )05 – 0633 – 05
作者:
李軍龍1  李德旗2  朱炬輝1  石孝志1  張劍1  焦亞軍2
1. 中國石油集團川慶鉆探工程有限公司井下作業公司;2. 中國石油天然氣股份有限公司浙江油田公司
Author(s):
LI Junlong1 LI Deqi2 ZHU Juhui1 SHI Xiaozhi1 ZHANG Jian1 JIAO Yajun2
1. Downhole Operation Company, CNPC Chuanqing Drilling Engineering Company Limited, Chengdu 610052, Sichuan, China; 2. PetroChina Zhenjiang Oilfield Company, Hangzhou 310023, Zhenjiang, China
關鍵詞:
頁巖氣分段壓裂連續油管砂塞暫堵套管變形
Keywords:
shale gas staged fracturing coiled tubing sand plug for temporary plugging casing deformation
分類號:
TE357
DOI:
10.13639/j.odpt.2017.05.018
文獻標志碼:
A
摘要:
滇黔北昭通頁巖氣示范區YSA 井鉆遇斷層且存在3 個水平井眼,考慮到壓裂過程中可能產生套管變形等復雜問題, 不宜采用常規的橋塞分段工藝,因此開展了連續油管無限級砂塞分段工藝進行分段壓裂。該工藝分段數不受井筒條件限制,分段方式以砂塞封隔分段代替了常規的橋塞分段,配套的新型工具只需起下1 次連續油管就能完成單段的沖砂、填砂和多簇噴砂射孔作業,整個施工過程中井筒全通徑,能有效應對頁巖氣井套管變形對壓裂施工的影響。YSA 井在發生套管變形的情況下完成了13 級分段壓裂,解決了由于套管變形而無法使用橋塞分段的難題,壓后測試產量達11.3×104 m3/d,增產效果顯著。該工藝的成功應用為我國頁巖氣井提供了一種新的分段改造手段。
Abstract:
Well YSA in Zhaotong Shale gas Demonstration Region in North Yunnan-Guizhou Area encounters faults and it has three horizontal holes. The conventional bridge plug staged fracturing is not capable of dealing with the possible complicated problems in the process of fracturing, e.g. casing deformation, so a new type of infinite-order sand plug staged fracturing is carried out. By virtue of this technology, the number of stages is beyond the limitation of hole conditions, and the conventional bridge plug staging is replaced with the sand plug packing off and staging. Its support tools can finish sand washing, sand packing and multi-cluster sand blasting and perforation only by one trip of coiled tubing. In the whole process of fracturing, the borehole is fully open to diminish the effect of casing deformation of shale gas wells on the fracturing effect effectively. When this technology is actually used in Well YSA, the 13-order staged fracturing is carried out in the case of casing deformation in the process of fracturing. And thus, its technical difficulty that bridge plug staged fracturing is unsuitable due to casing deformation is settled down. The stimulation effect is remarkable, with production rate of 11.3×104 m3/d after the fracturing. The successful application of this technology provides a new staged stimulation method for domestic shale gas wells.

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更新日期/Last Update: 2017-11-24
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