高密度无固相低伤害压井液体系的构建及性能研究

黄知娟, 潘丽娟, 龙武, 霍锦华

doi:10.16577/j.issn.1001-1560.2022.0312

材料保护 >

2022 , Vol. 55 >Issue 11: 83 - 89

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0312

工艺探讨

高密度无固相低伤害压井液体系的构建及性能研究

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¹中国石油化工集团公司碳酸盐岩缝洞型油藏提高采收率重点实验室； ²中国石油化工股份有限公司西北油田分公司； ³西安工程大学环境与化学工程学院

霍锦华(1992-)，工学博士，副教授，研究方向为油田化学，电话：18328078183，E - mail: 18328078183m@sina.cn

收稿日期: 2022-05-25

修回日期: 2022-06-28

录用日期: 2022-07-20

网络出版日期: 2023-12-26

基金资助

顺北一区5号断裂带提质提速钻完井技术研究(编号：P20002)资助

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Construction and Performance Research of High Density Solid Free and Low Damage Well Killing Fluid Systems

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(1. Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured - Vuggy Reservoirs, CNPC, Urumchi 830011, China;2. Sinopec Northwest Company of China Petroleum and Chemical Corporation, Urumchi 830011, China;3. School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China)

Received date: 2022-05-25

Revised date: 2022-06-28

Accepted date: 2022-07-20

Online published: 2023-12-26

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摘要

压井作业是油气勘探开发过程中的重要环节之一，高性能压井液对于压井作业成败十分关键。为提高无固相、低伤害压井液体系的密度，以无机盐类加重剂JZJ - 1和有机盐类加重剂JZJ - 2复合型加重剂为基础，辅以合成降滤失剂PT - 1、增溶剂、阻垢剂及除氧剂制备密度为1.60，1.70，1.80 g/cm3的高密度无固相低伤害压井液体系SWJ - 1、SWJ - 2和SWJ - 3。高密度无固相低伤害压井液体系外观澄清透明，体系pH值在10～12之间，具有优异的耐温性能、流变性能、滤失性能及体系相容性，同时，宏观及微观分析显示其具有低腐蚀特性，具备一定的推广应用前景。

关键词： 油气勘探开发; 降滤失剂; 压井液体系; 腐蚀性能

本文引用格式

黄知娟, 潘丽娟, 龙武, 霍锦华 . 高密度无固相低伤害压井液体系的构建及性能研究[J]. 材料保护, 2022 , 55(11) : 83 -89 . DOI: 10.16577/j.issn.1001-1560.2022.0312

Abstract

Well killing is an important work in oil and gas exploration and development, and high - performance well killing fluids are critical to the success of this work. In order to increase the density of solid free and low damage well killing fluid system, environmental friendly high density solid free and low damage well killing fluid systems SWJ - 1, SWJ - 2 and SWJ - 3 with a density of 1.60, 1.70 and 1.80 g/cm3 respectively were prepared by means of adding synthesized filtrate reducer PT - 1, solvent increasing agent, scale inhibitor and deoxidizer into a compound weighting agent which was comprised of inorganic salt weighting agent JZJ - 1 and organic salt weighting agent JZJ - 2. The systems had a clear and transparent appearance, a pH value in the range of 10 ～ 12, and excellent temperature resistance, rheological properties, filtration performance and system compatibility. In addition, the macro and micro analyses showed that the systems possessed the characteristic of low corrosion, presenting a certain application prospect.

Key words： oil and gas exploration and development; filtrate reducer; well killing fluid system; corrosion performance

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