耐高温高压超高密度水泥浆体系的室内研究

宋鹤; 杨威; 唐俊峰; 刘翠微; 王敬朋; 林志伟

doi:10.3969/j.issn.1001-5620.2021.01.019

耐高温高压超高密度水泥浆体系的室内研究

doi: 10.3969/j.issn.1001-5620.2021.01.019

1. 中国石油集团工程技术研究有限公司, 天津 300450;
2. 新疆油田公司工程技术研究院, 新疆克拉玛依 834000

基金项目:

中国石油天然气集团有限公司重大技术现场试验“准噶尔南缘和玛湖等重点地区优快钻完井技术集成与试验”（2019F-33）

详细信息

作者简介:
宋鹤,工程师,1986年生,毕业于中国石油大学(北京)应用化学专业,现在主要从事固井相关工作。电话 18202692274,E-mail:songhe@cnpc.com.cn

中图分类号: TE256.6
计量
- 文章访问数: 451
- HTML全文浏览量: 170
- PDF下载量: 45
- 被引次数: 0
出版历程
- 收稿日期: 2020-09-21
- 网络出版日期: 2021-08-16

Laboratory Study on an HTHP Ultra-High Density Cement Slurry

1. CNPC Engineering Technology Research Co., Ltd, Tianjin, 300450;
2. Engineering Technology Research Institute of Xinjiang Oilfield, Karamay, Xinjiang, 834000

摘要

摘要: 天湾1井是位于准噶尔盆地中部的一口超深预探井，井深为7500 m，井底压力为170 MPa，井底温度为160℃，针对该井高温高压的问题，以及目前超高密度水泥浆存在的流动性和沉降稳定性差、动态失水量较大、以及大温差下顶部水泥石强度出现过缓凝等问题，室内成功研制出耐高温高压超高密度水泥浆体系，水泥浆密度可达2.55 g/cm³，该体系主要由新型加重剂、微硅、高温稳定剂、600目硅石粉（粒径为0.025 mm）、新型微锰矿粉、悬浮剂、高温缓凝剂、高温降失水剂、高温减阻剂等组成。实验结果表明，该体系水泥浆流动度达到32 cm，同时具有较好的沉降稳定性能，顶部水泥石强度较高，防气窜能力强，在160℃、170 MPa下，稠化时间线性可调，动态失水量为40 mL，该水泥浆体系应用范围广泛，可通过调整外加剂掺量来满足天湾1井不同井深温度下的固井施工要求。
- 超高密度水泥浆 /
- 大温差 /
- 耐高温高压 /
- 天湾1井 /
- 超深预探井
Abstract: The well Tianwan-1 is an ultra-deep exploration well located in the middle of the Junggar Basin, with depth of 7,500 m, bottom hole pressure of 170 MPa and bottom hole temperature of 160 ℃. A high temperature high pressure ultra-high density cement slurry was developed in laboratory to overcome the high temperature and high pressure, as well as the other problems related to ultrahigh density cement slurries, such as poor fluidity, poor settling stability, high dynamic fluid loss, and over-retarding of the strength of the top set cement under big temperature differences, etc. The highest density of the cement slurry was 2.55 g/cm³. The cement slurry was developed with a new weighting agent, micronized silica, a high temperature stabilizer, powdered silica passing through 600-mesh screen, a new micronized manganese powder, a suspending agent, a high temperature retarder, a high temperature filter loss reducer and a high temperature friction reducer. Laboratory experimental results showed that the cement slurry had fluidity of 32 cm, good settling stability, high strength of top set cement and strong capacity of anti-channeling. The thickening time of the cement slurry is linearly adjustable at 160 ℃ and 170 MPa. Dynamic filter loss of the cement slurry was 40 mL. The cement slurry can be used in a wide range of downhole conditions; by changing the concentrations of the different additives, the cement slurry can satisfy the needs of cementing operation at different downhole temperatures (hence different depths) in the well Tianwan-1.
- Ultra-high density cement slurry /
- Big temperature difference /
- High temperature and high pressure resistant /
- Well Tianwan-1 /
- Ultra-deep exploration well

HTML全文

参考文献(11)

[1]	黄柏宗,谢承斌,蔡久能. 深井固井的若干问题[J]. 钻井液与完井液,2003,20(5):48-51. HUANG Bozong,XIE Chengbin,CAI Jiuneng. Some problems in deep well cementing[J]. Drilling Fluid & Completion Fluid,2003,20(5):48-51.
[2]	刘崇建,黄柏宗,徐同台,等. 油气井注水泥理论与应用[M]. 石油工业出版社,2001. LIU Chongjian,HUANG Bozong,XU Tongtai,et al. Theory and application of cementing in oil and gas well[M]. Petroleum Industry Press,2001.
[3]	徐壁华,刘汝国. 超高密度水泥浆加重剂粒径和加量优化模型[J]. 西南石油学报,2008,30(6):131-134. XU Bihua,LIU Ruguo. The optimal method and weight agent granular size of super high density cement slurry[J]. Journal of Southwest Petroleum University,2008,30(6):131-134.
[4]	李丰收. 最新石油固井关键技术应用手册[M]. 石油工业出版社,2007. LI Fengshou. The latest application manual of oil cementing technology[M]. Petroleum Industry Press,2007.
[5]	黄柏宗,李宝贵. 模拟井下温度压力条件的水泥浆沉降稳定性研究[J]. 钻井液与完井液,2000,17(2):1-7. HUANG Bozong,LI Baogui. Study on settlement stability of cement slurry under simulated downhole temperature and pressure conditions[J]. Drilling Fluid & Completion Fluid,2000,17(2):1-7.
[6]	段德松,黄瑞珍,王荷波. 漂珠水泥浆体系稳定性研究[J]. 石油钻探技术,1995,23(S1):57-60. DUAN Desong,HUANG Ruizhen,WANG Hebo. Study on stability of floating bead cement slurry[J]. Petroleum Drilling Techniques,1995,23(S1):57-60.
[7]	BERGS,NOORS,BARNETTN, et al. Cementing high pressure formations in the Kingdom of Saudi Arabia[R]. SPE 120802,2008.
[8]	WANG C,WANG R,LI H,et al. Design and performance evaluation of a unique deepwater cementslurry[J]. SPE Drilling & Completion,2011,26(2):220-226.
[9]	于永金,刘硕琼,袁进平,等. 高温条件下水泥浆沉降稳定性的评价方法[J]. 钻井液与完井液,2011,28(6):52-54. YU Yongjin,LIU Shuoqiong,YUAN Jinping,et al. Evaluation method of settlement stability of cement slurry at high temperature[J]. Drilling Fluid & Completion Fluid 2011,28(6):52-54.
[10]	杨勇,戴建文,林荣壮,等. 高温水泥浆沉降稳定性[J]. 钻井液与完井液,2010,27(6):55-57. YANG Yong, DAI Jianwen, LIN Rongzhuang, et al. Study on settlement stability of cement slurry in high temperature[J]. Drilling Fluid & Completion Fluid, 2010, 27(6):55-57.
[11]	屈建省, 安耀彬, 刘翠微, 等. GB/T 19139-2012油井水泥试验方法[S]. 北京:中国标准出版社,2012. QU Jiansheng, AN Yaobin, LIU Cuiwei,et al.GB/T 19139-2012Testing of well cement[S].Beijing:China Standard Press,2012.