CN101698579B - 耐高温油井水泥缓凝剂 - Google Patents

耐高温油井水泥缓凝剂 Download PDF

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Publication number
CN101698579B
CN101698579B CN2009102292713A CN200910229271A CN101698579B CN 101698579 B CN101698579 B CN 101698579B CN 2009102292713 A CN2009102292713 A CN 2009102292713A CN 200910229271 A CN200910229271 A CN 200910229271A CN 101698579 B CN101698579 B CN 101698579B
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oil well
well cement
high temperature
cement retarder
water
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CN101698579A (zh
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秦怀侠
蔡涛
卢燚
裴金存
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Shandong Shengyou Petroleum Engineering Co ltd
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SHANDONG SHENGYOU CEMENTING ENGINEERING TECHNOLOGY Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/20—Retarders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/80—Optical properties, e.g. transparency or reflexibility

Abstract

一种耐高温油井水泥缓凝剂，是一种有机物和无机物的共混物，由羟基乙叉二磷酸、柠檬酸、氯化钠和水组成，其质量份数比为羟基乙叉二磷酸∶柠檬酸∶氯化钠∶水＝2-4∶0.5-1∶0.5-1.5∶3-5，将氯化钠、柠檬酸和水按重量份数比混合于搅拌器或合成釜中，搅拌5-8分钟，使氯化钠和柠檬酸充分溶解在水中，再按质量份数比加进羟基乙叉二磷酸，搅拌15-20分钟即制成无色或淡黄色液体的耐高温油井水泥缓凝剂，利用水泥浆体系中分子间形成的氢键进行分子间络合反应提高油井水泥缓凝剂的耐高温性。

Description

耐高温油井水泥缓凝剂
一、技术领域
本发明涉及一种油田固井所用的耐高温油井水泥缓凝剂。
二、背景技术
目前钻井固井用的缓凝剂无法应用于深井高温环境下固井作业要求，稠化时间无法满足固井施工要求的安全时间，采用国外缓凝剂存在外加剂无法配套及价格太高的问题，没有技术效益和经济效益。降低固井效果和套管的使用寿命，目前在生产的油水井套管出现串槽就是其中的主要原因，套管穿槽后会引起油、气、水、层互串导致采油方案或注水方案无法实施，给油田造成极大的经济损失。
三、发明内容
本发明的目的是提供一种耐高温油井水泥缓凝剂，解决上述已有技术存在的油井水泥缓凝剂不适应深井高温环境的问题。
本发明的技术方案是通过以下方式实现的：
本发明为有机物和无机物的共混物，由羟基乙叉二磷酸、柠檬酸、氯化钠和水组成，其质量份数比为羟基乙叉二磷酸∶柠檬酸∶氯化钠∶水＝2-4∶0.5-1∶0.5-1.5∶3-5，将其混合物搅拌制成耐高温油井水泥缓凝剂。
先将氯化钠、柠檬酸和水按重量份数比混合于搅拌器或合成釜中，搅拌5-8分钟，使氯化钠和柠檬酸充分溶解在水中，再按质量份数比加进羟基乙叉二磷酸，搅拌15-20分钟即制成无色或淡黄色液体的耐高温油井水泥缓凝剂，利用水泥浆体系中分子间形成的氢键进行分子间络合反应提高油井水泥缓凝剂的耐高温性。
本发明适用于与API标准的各级水泥配伍，在泥浆体系中加质量份0.8％-1.5％时，耐高温210℃。稠化时间可调性强，固井顶部稠化时间48小时，温度在110℃时固井强度高于14Mpa。
四、附图说明
无附图
五、具体实施方式
为进一步公开本发明的技术方案，下面通过实施例作详细说明：本发明为有机物和无机物的共混物，由羟基乙叉二磷酸、柠檬酸、氯化钠和水组成，其质量份数比为羟基乙叉二磷酸∶柠檬酸∶氯化钠∶水＝3∶0.8∶0.7∶4，将其混合物搅拌制成耐高温油井水泥缓凝剂。先将氯化钠、柠檬酸和水按重量份数比混合于搅拌器或合成釜中，搅拌5-8分钟，使氯化钠和柠檬酸充分溶解在水中，再按质量份数比加进羟基乙叉二磷酸，搅拌15-20分钟即制成无色或淡黄色液体的耐高温油井水泥缓凝剂，利用水泥浆体系中分子间形成的氢键进行分子间络合反应提高油井水泥缓凝剂的耐高温性。
胜科1井是我国东部油田开发迄今为止最深的一口井，井温达到210℃，因为井底下岩石氯离子的存在，因此固井设计进对水泥浆中盐的含量做了重点要求-含量必须达到18％.根据技术参数要求，使质量份数比羟基乙叉二磷酸∶柠檬酸∶氯化钠∶水＝3∶0.8∶0.7∶4制成的耐高温油井水泥缓凝剂，加入用18％饱和盐水配制成的水泥浆中，温度在210℃，稠化时间＞240min；顶部110℃、48h强度＞14Mpa。固井过程施工顺利，经测井数据验证。固井质量良好。

Claims (2)

1.一种耐高温油井水泥缓凝剂，是一种有机物和无机物的共混物，由羟基乙叉二磷酸、柠檬酸、氯化钠和水组成，其质量份数比为羟基乙叉二磷酸∶柠檬酸∶氯化钠∶水＝2-4∶0.5-1∶0.5-1.5∶3-5，将其混合搅拌制成耐高温油井水泥缓凝剂。
2.根据权利要求1所述的耐高温油井水泥缓凝剂，其特征在于先将氯化钠、柠檬酸和水按质量份数比混合于搅拌器或合成釜中，搅拌5-8分钟，使氯化钠和柠檬酸充分溶解在水中，再按质量份数比加进羟基乙叉二磷酸，搅拌15-20分钟即制成无色或淡黄色液体的耐高温油井水泥缓凝剂，利用水泥浆体系中分子间形成的氢键进行分子间络合反应提高油井水泥缓凝剂的耐高温性。
CN2009102292713A 2009-10-21 2009-10-21 耐高温油井水泥缓凝剂 Active CN101698579B (zh)

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Publication number Priority date Publication date Assignee Title
CN102381857B (zh) * 2010-09-06 2016-02-17 丁俊 超缓凝水泥料配方及缓凝剂
CN113493322B (zh) * 2021-07-16 2023-07-25 河南省恒信阳光实业有限公司 一种油井水泥缓凝剂制备用混合机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1669972A (zh) * 2005-02-23 2005-09-21 刘茂平 快硬硫铝酸盐水泥复合缓凝剂
CN101451061A (zh) * 2008-12-30 2009-06-10 山东大学 一种油泥砂固砂堵水调剖剂

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CN1669972A (zh) * 2005-02-23 2005-09-21 刘茂平 快硬硫铝酸盐水泥复合缓凝剂
CN101451061A (zh) * 2008-12-30 2009-06-10 山东大学 一种油泥砂固砂堵水调剖剂

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