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川东北高含硫气藏钻井液抗硫工艺优化与应用

肖金裕,  周华安,  暴丹,  冯学荣,  卢浩,  杨兰平,  汪伟

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文章导航 > 钻井液与完井液  > 2023 >  40(6): 718-724
肖金裕，周华安，暴丹，等. 川东北高含硫气藏钻井液抗硫工艺优化与应用[J]. 钻井液与完井液，2023，40（6）：718-724 doi: 10.12358/j.issn.1001-5620.2023.06.004
引用本文: 肖金裕，周华安，暴丹，等. 川东北高含硫气藏钻井液抗硫工艺优化与应用[J]. 钻井液与完井液，2023，40（6）：718-724 doi: 10.12358/j.issn.1001-5620.2023.06.004
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XIAO Jinyu, ZHOU Huaan, BAO Dan, et al.Optimization of sulfur-resistant drilling fluid techniques and its application in drilling high sulfur content reservoirs in northeast Sichuan[J]. Drilling Fluid & Completion Fluid，2023, 40（6）：718-724 doi: 10.12358/j.issn.1001-5620.2023.06.004
Citation: XIAO Jinyu, ZHOU Huaan, BAO Dan, et al.Optimization of sulfur-resistant drilling fluid techniques and its application in drilling high sulfur content reservoirs in northeast Sichuan[J]. Drilling Fluid & Completion Fluid，2023, 40（6）：718-724 doi: 10.12358/j.issn.1001-5620.2023.06.004
shu

川东北高含硫气藏钻井液抗硫工艺优化与应用

doi: 10.12358/j.issn.1001-5620.2023.06.004
  • 1.

    川庆钻探钻井液技术服务公司, 重庆400021

  • 2.

    川庆钻探钻井液技术服务公司, 成都610056

  • 3.

    重庆科技学院化学化工学院, 重庆401331

基金项目: 川庆钻探工程有限公司科技攻关项目“川东北高含硫气藏钻井液抗硫及承压堵漏关键技术深化研究与试验”（CQ2021B-46-Z2-3）。
详细信息
    作者简介:

    肖金裕，高级工程师，1969年生，毕业于石油大学（华东）开发系泥浆专业，现在主要从事现场钻井液技术应用研究工作。E-mail：xiaojy_sc@cnpc.com.cn

  • 中图分类号: TE254.3

Optimization of Sulfur-Resistant Drilling Fluid Techniques and Its Application in Drilling High Sulfur Content Reservoirs in Northeast Sichuan

  • 1.

    Drilling Fluid Technology Service Company of Chuanqing Drilling Engineering Company, Chongqing 400021

  • 2.

    Drilling Fluid Technology Service Company of Chuanqing Drilling Engineering Company, Chendu, Sichuan 610056

  • 3.

    School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331

    摘要
  • 摘要: 川东北地区铁山坡、罗家寨、渡口河、七里峡、正坝和菩萨殿气田飞仙关组气藏属于高含硫气藏～特高含硫气藏。针对川东北高含硫气藏地质特点和钻井液技术难点分析，提出钻井液抗硫工艺优化对策，并通过室内实验优选出抗硫钻井液体系配方，进行了钻井液黏度、pH值、碱度、油水比对吸收H2S效果的评价。研究结果表明，水基钻井液和油基钻井液优化抗硫工艺后具有较强的抗硫除硫能力。该抗硫钻井液体系在坡002-H4井和罗家24井现场试用非常成功，钻井周期大幅缩短、机械钻速明显提高，平均井眼扩大率降低，抗硫除硫效果明显，能够满足高含硫井钻进的要求，在下川东高含硫地层钻井方面有着广阔的应用前景。

     

    Abstract: Reservoirs in the Tieshanpo formation, the Luojiazhai formation, the Dukouhe formation, the Qilixia formation, the Zhengba formation and the Feixianguan formation in the Pushadan gas field in northeastern Sichuan are those with high or extra-high sulfur content gas reservoirs. This paper discusses the optimization of sulfur-resistant drilling fluid techniques for the drilling of these high sulfur content reservoirs based on the analyses of the reservoir formation geology and of the difficulties in drilling fluid operation. A drilling fluid with sulfur resistance was formulated through laboratory experiment. Laboratory evaluation of the effects of mud viscosity, pH value, alkalinity and oil/water ratio on the absorption of H2S has shown that the optimized water-based drilling fluid and the oil-based drilling fluid have good sulfur resistance. The sulfur-resistant drilling fluid formulated has been very successfully used on the well Po-002-H4 and the well Luojia-24; the drilling time was greatly shortened, the rate of penetration obviously increased, the average hole enlargement reduced, and the drilling fluid showed good sulfur-resistance and sulfur-removal during drilling. This drilling fluid has satisfied the requirements of drilling wells with high sulfur content, and has broad development and application prospects in drilling the high sulfur content formations in the lower east Sichuan area.

     

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  • 图  1  水基钻井液黏度对吸收H2S效果的影响

    下载: 全尺寸图片 幻灯片

    图  2  水基钻井液pH值对吸收H2S效果的影响

    下载: 全尺寸图片 幻灯片

    图  3  钻井液黏度对吸收H2S效果的影响

    下载: 全尺寸图片 幻灯片

    图  4  碱度对油基钻井液吸收H2S效果的影响

    下载: 全尺寸图片 幻灯片

    图  5  油水比对吸收H2S效果的影响

    下载: 全尺寸图片 幻灯片

    表  1  抗硫水基钻井液体系配方优选实验

    配方老化条件ρ/
    g·cm−3    		FLAPI/
    mL    		Gel/
    Pa/Pa    		pHHTHPφ600/φ300φ200/φ100φ6/φ3备注
    FL/mLk/mm
    1#130 ℃、8 h1.623.21.5/8.09.511.04.590/5338/223/2杯底无沉淀，玻棒直接到
    底，有清脆撞击声
    2#130 ℃、8 h1.623.22.5/12.59.510.85.0120/7051/314/3开罐比1#稠，杯底无沉淀，
    玻棒到底，有清脆撞击声
    3#130 ℃、8 h1.603.60.5/4.09.511.25.558/3121/122/1玻棒不能到底，杯底有5 mm
    沉淀，搅拌1 min后即散
    4#130 ℃、8 h1.593.40.5/4.0109.83.548/2619/122/1玻棒直接到底，有清脆撞击声，
    静置后无沉淀
    5#130 ℃、8 h1.603.00/0.251010.87.034/1913/91/1玻棒不能到底，杯底有3 mm沉
    淀，搅拌即散，静置后有沉淀
    下载: 导出CSV

    表  2  抗硫油基钻井液体系配方优选实验

    序号配方实验
    条件    		PV/
    mPa·s    		YP/
    Pa    		Gel/
    Pa/Pa    		碱
    度    		FLHTHP/
    mL    		φ600/
    φ300    		φ200/
    φ100    		φ6/
    φ3
    6#白油+3%有机土+5%三合一乳化剂HFMO+5%降滤失剂HFLO+5%CaO+3%RF-9+5%超细钙+5%超微重晶石+35%CaCl2盐水（90∶10）+重晶石粉65 ℃191.01/33.51240/2115/82/1
    老化后201.51.5/33.51243/2317/102/1
    7#白油+3%有机土+6%HFMO+5%HFLO+3%CaO+
    3%RF-9+5%超细钙+5%超微重晶石+
    35%CaCl2盐水（85∶15）+重晶石粉    		65 ℃191.01.5/33.51440/2115/92/1
    老化后213.01.5/33.51448/2719/112/1
    8#白油+7%有机土+6%HFMO+7%HFLO+3%CaO+5%
    RF-9+6%超细钙+5%超微重晶石+3%除硫剂
    JD-2+40%CaCl2盐水（85∶15）+重晶石粉    		65 ℃4314.56/93.51.2115/7256/3814/12
    9#白油+7%有机土+6%HFMO+7%HFLO+3%CaO+5%
    RF-9+6%超细钙+5%超微重晶石+3%JD-2+30%CaCl2
    盐水（85∶15）+重晶石粉    		65 ℃478.06/83.01.0110/6353/3613/12
    10#白油+6%有机土+6%HFMO+7%HFLO+5%CaO+5%
    RF-9+6%超细钙+5%超微重晶石+3%JD-2+30%CaCl2
    盐水（85∶15）+重晶石粉    		65 ℃309.03/63.51.678/4838/258/7
    老化后257.53/53.51.665/4030/207/6
    　　注：钻井液密度为1.22～1.25 g/cm3；老化条件为120 ℃、24 h；10#配方老化前和老化后的破乳电压分别为891、980 V。
    下载: 导出CSV

    表  3  改变10#配方钻井液中有机土　　加量后不同体系的流变性能

    体系AV/
    mPa·s    		PV/
    mPa·s    		YP/
    Pa
    10＇#3.02.50.5
    10＂# 8.57.01.5
    10#17.510.07.5
    下载: 导出CSV

    表  4  坡002-H4井应用井段抗硫水基钻井液的性能

    井深/mρ/（g·cm−3）FV/sFLAPI/mLPV/mPa·sYP/PaYP/PV/（Pa/mPa·s）pH
    2367～26561.4345～493.4～4.024～274.0～5.00.015～0.20810.0～10.5
    2656～38841.43～1.7345～532.8～3.619～403.5～9.00.023～0.19410.5
    39511.76502.8357.00.20010.5
    下载: 导出CSV

    表  5  坡002-H4井应用井段抗硫油基钻井液的性能

    开次井深/mρ/（g·cm−3）FV/sFLHTHP/mLPV/mPa·sYP/PaYP/PV/（Pa/mPa·s）碱度ES/V
    导眼井3958～44351.00～1.0557～592.0～2.815～193.8～4.80.220～0.2502.7～3.8416～578
    水平井3966～40901.2055～582.2～2.420～224.3～5.20.196～0.2643.6～3.9540～640
    4123～42381.03～1.05572.2～2.420～223.8～4.30.170～0.2103.0～4.0410～505
    4238～50561.08～1.0956～571.6～2.019～213.8～5.20.200～0.2706.2～7.0590～1020
    下载: 导出CSV

    表  6  罗家24井应用井段抗硫水基钻井液性能

    井深
    m    		ρ/
    g·cm−3    		FV/
    s    		FLAPI/
    mL    		PV/
    mPa·s    		YP/
    Pa    		YP/PV/
    Pa/mPa·s    		pH
    23571.19474.0214.00.19010.0
    25001.18452.8173.00.17610.0
    2620～
    2829    		1.1845～
    50    		2.6～
    3.0    		15～
    20    		3.0～
    6.5    		0.19～
    0.32    		10.0
    29441.20453.2164.50.28110.5
    下载: 导出CSV

    表  7  罗家24井应用井段抗硫油基钻井液性能

    开次井深mρ/(g·cm−3)FV/sFLHTHP/mLPV/mPa·sYP/PaGel/(Pa/Pa)碱度ES/V油水比
    四开29841.20662.2338.03/43.051080∶20
    32551.23652.0297.04/64.552080∶20
    34061.25632.0298.03/54.561080∶20
    3615～40161.24592.0266.0～8.52.5～3/3.5～45.0585～68580∶20
    五开4019～48081.1056～581.4～2.021～276.0～8.02.5～3/3～54.0～5.0580～63880∶20
    4944～52501.11～1.1256～571.624～296.5～8.03/45.0627～75380∶20
    下载: 导出CSV
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  • 收稿日期:  2023-05-14
  • 修回日期:  2023-06-11
  • 刊出日期:  2023-12-30

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