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高石梯-磨溪區(qū)塊高壓氣井尾管固井技術(shù)

文檔作者：宋有勝鄒建龍趙寶輝劉愛(ài)萍文檔來(lái)源：中國(guó)石油集團(tuán)海洋工程有限公司渤星公司中國(guó)石油集團(tuán)鉆井工程重點(diǎn)實(shí)驗(yàn)室固井技術(shù)研究室??油氣鉆井技術(shù)國(guó)家工程實(shí)驗(yàn)室固井技術(shù)研究室		點(diǎn) 擊數(shù)：	更新時(shí)間： 2023年10月04日
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第34 卷 第2 期
2017 年3 月
Vol. 34 No. 2
Mar. 2017
鉆 井 液 與 完 井 液
DRILLING FLUID &amp;amp; COMPLETION FLUID
doi: 10.3969/j.issn.1001-5620.2017.02.020
高石梯- 磨溪區(qū)塊高壓氣井尾管固井技術(shù)
宋有勝，　鄒建龍，　趙寶輝，　劉愛(ài)萍
（中國(guó)石油集團(tuán)海洋工程有限公司渤星公司??中國(guó)石油集團(tuán)鉆井工程重點(diǎn)實(shí)驗(yàn)室固井技術(shù)研究室??油氣鉆井技術(shù)國(guó)家工程實(shí)驗(yàn)室
固井技術(shù)研究室，天津 300451）
宋有勝，鄒建龍，趙寶輝，等. 高石梯- 磨溪區(qū)塊高壓氣井尾管固井技術(shù)[J]. 鉆井液與完井液，2017，34（2）：111-116.
SONG Yousheng，ZOU Jianlong，ZHAO Baohui，et al.Cementing the φ177.8 mm Liner in the Block Gaoshiti-Moxi[J].
Drilling Fluid &amp;amp; Completion Fluid，2017，34（2）：112-116.
摘要　針對(duì)西南油氣田高石梯- 磨溪區(qū)塊高壓氣井φ177.8 mm 尾管固井遇到的氣層活躍、安全密度窗口窄、流體相容
性差及高溫大溫差等問(wèn)題，制定了相應(yīng)的固井技術(shù)措施。開(kāi)發(fā)了適合高溫大溫差固井的自愈合防竄高密度水泥漿體系，并
進(jìn)行了室內(nèi)研究。結(jié)果表明：該體系密度為2.0～2.8 g/cm3，現(xiàn)場(chǎng)一次混配可達(dá)2.6 g/cm3 以上；適應(yīng)溫度為常溫～180 ℃ ；
漿體的上下密度差不大于0.05 g/cm3 ；失水量不大于50 mL ；稠化時(shí)間與緩凝劑摻量具有良好的線性關(guān)系，稠化過(guò)渡時(shí)間不
大于10 min ；靜膠凝強(qiáng)度過(guò)渡時(shí)間不大于20 min ；24 h 抗壓強(qiáng)度大于10 MPa，水泥石頂部48 h 抗壓強(qiáng)度大于3.5 MPa，低
溫下強(qiáng)度發(fā)展快，形成的水泥石體積穩(wěn)定不收縮，具有類(lèi)似韌性水泥的力學(xué)性能；遇油氣產(chǎn)生體積膨脹，保證了界面膠結(jié)
質(zhì)量和密封完整性，降低了固井后發(fā)生氣竄的風(fēng)險(xiǎn)。該固井技術(shù)在高石X 井和高石Y 井中進(jìn)行了應(yīng)用，固井優(yōu)質(zhì)率和合格
率得到較大幅度提高，水泥環(huán)后期不帶壓，獲得良好應(yīng)用效果。
關(guān)鍵詞　天然氣井；固井；自愈合防竄高密度水泥漿；氣竄；漏失；大溫差；安岳氣田
中圖分類(lèi)號(hào)：TE256.3　　　　文獻(xiàn)標(biāo)識(shí)碼：A　　　　文章編號(hào)：1001-5620（2017）02-0111-06
Liner Cementing the high pressure gas wells in the Block Gaoshiti-Moxi
SONG Yousheng, ZOU Jianlong, ZHAO Baohui, LIU Aiping
(Boxing Subsediary of CNPC Offshore Engineering Company Limited??Research Center of Well Cementing Technology,
CNPC Key Laboratory of Drilling Engineering??Research Center of Well Cementing Technology, National Engineering
Laboratory of Oil &amp;amp; Gas Drilling Technology, Tianjin 300451)
Abstract In cementing the φ177.8 mm liner string in high pressure gas wells in the Block Gaoshiti-Moxi of southwest oilfield,
problems such as active gas zones, narrow drilling windows, poor compatibility of fluids and large temperature difference at high
temperatures, were encountered. Technical measures were prepared to deal with these problems, and a self-healing anti-channeling
high density cement slurry was developed for cementing wells with large temperature difference at high temperatures. Laboratory study
of the cement slurry showed that the cement slurry had density between 2.0 g/cm3 and 2.8 g/cm3, and in field application, the cement
slurry can be prepared to have a density of 2.6 g/cm3 in one mixing circulation. This cement slurry functioned at temperatures between
room temperature and 180 ℃. Differences between the density of the top and bottom of cement slurry column was less than or equal to
0.05 g/cm3. The fluid loss of the cement slurry was less than or equal to 50 mL. The thickening time had good linear relationship with
the concentration of retarders, and the transit time for the thickening of the cement slurry was not longer than 10 min. The maximum
transit time of the gel strengths of the cement slurry was 20 min. The 24-hour compressive strength of the set cement was greater than
10 MPa, and the 48-hour compressive strength of the cement top was greater than 3.5 MPa. The strength of the cement slurry developed
fast at low temperatures. The set cement formed had stable non-shrinking volume, possessing a mechanical performance that is similar
to that of tough cement. The cement slurry expanded when in contact with oil and gas, ensuring the quality of bonding between
基金項(xiàng)目：國(guó)家科技重大專(zhuān)項(xiàng)課題“深井超深井優(yōu)質(zhì)鉆井液與固井完井技術(shù)研究”（2016ZX05020-004）和中國(guó)石油天
然氣集團(tuán)公司課題“復(fù)雜工況條件下固井密封力學(xué)機(jī)理及控制技術(shù)研究”（2016A-3904）。
第一作者簡(jiǎn)介：宋有勝，高級(jí)工程師，1966 年生，畢業(yè)于天津大學(xué)應(yīng)用化學(xué)系，現(xiàn)在從事固井技術(shù)研究和應(yīng)用工作。
電話（ 022）66310307/13920263721;E-mail：songys@cnpc.com.cn。

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