适于高矿化度地层水地层的稳油控水绒囊流体

朱立国; 黄波; 陈维余; 孙亮; 廖迪; 姜梦奇; 冯丽娟

doi:10.13639/j.odpt.2016.02.017

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适于高矿化度地层水地层的稳油控水绒囊流体

朱立国, 黄波, 陈维余, 孙亮, 廖迪, 姜梦奇, 冯丽娟

文章导航 > 石油钻采工艺 > 2016 > 38(2): 216-220

朱立国, 黄波, 陈维余, 孙亮, 廖迪, 姜梦奇, 冯丽娟. 适于高矿化度地层水地层的稳油控水绒囊流体[J]. 石油钻采工艺, 2016, 38(2): 216-220. doi: 10.13639/j.odpt.2016.02.017

引用本文:

ZHU Liguo, HUANG Bo, CHEN Weiyu, SUN Liang, LIAO Di, . Fuzzy-ball fluid for stabilizing oil production and water control in formations with high-salinity water[J]. Oil Drilling & Production Technology, 2016, 38(2): 216-220. doi: 10.13639/j.odpt.2016.02.017

Citation:

ZHU Liguo, HUANG Bo, CHEN Weiyu, SUN Liang, LIAO Di, . Fuzzy-ball fluid for stabilizing oil production and water control in formations with high-salinity water[J]. Oil Drilling & Production Technology, 2016, 38(2): 216-220. doi: 10.13639/j.odpt.2016.02.017

适于高矿化度地层水地层的稳油控水绒囊流体

doi: 10.13639/j.odpt.2016.02.017

1.
中海油能源发展股份有限公司工程技术分公司
2.
北京华油科隆开发公司3. 中国石油大学华东
3.
华北油田分公司勘探开发研究院

详细信息

中图分类号: TE358

Fuzzy-ball fluid for stabilizing oil production and water control in formations with high-salinity water

1.
CNOOC EnerTech-Drilling &
2.
Production Co., Tianjin 300452, China
3.
Beijing Huayou KelongDevelopment Corp., Beijing 100028, China

摘要: 为验证绒囊流体在含高矿化度地层水地层中稳油控水效用，在温度120 ℃、围压15 MPa、回压1.5 MPa 条件下，采用恒流速法测定绒囊流体封堵前后，含不同矿化度盐水和煤油的人造砂岩柱塞稳定流动渗透率和注入压力变化。实验结果表明，0.1 mL/min 恒定流速下，绒囊流体封堵前后，含Fe2++Ca2++Mg2+ 矿化度分别为1×104 mg/L、10×104 mg/L、20×104 mg/ L 盐水岩心驱替压力由0.46~0.63 MPa 升至1.39~2.23 MPa，封堵能力提高205.83%~262.64%；渗透率140.82~193.30 mD 降至66.96~109.85 mD，损失率43.15%~52.53%。以煤油模拟地层原油，相同条件下测定封堵前后效果，驱替压力0.48~0.52 MPa 升至0.51~0.55 MPa，增幅5.83%~8.08%；渗透率232.05~272.52 mD 降至211.09~249.25 mD，损失率2.26%~4.51%。在地层水矿化度8×104 mg/L、4×104 mg/L 的Y 井和Z 井实施绒囊流体稳油控水，通过提高泵次、深抽等工艺，油井产水量分别降低46.38%、15.99%，产油量提高6 200%、180%。研究和应用表明，绒囊流体抗高矿化度堵水体系能够实现稳油控水。
- 堵水 /
- 绒囊流体 /
- 高矿化度地层水 /
- 稳油控水 /
- 室内实验 /
- 现场应用
Abstract: To clarify the performance of fuzzy-ball fluid in stabilizing oil production and water control in formations with high-salinity water, the constant flow velocity was used under temperature of 120 ℃, confining pressure of 15 MPa and backpressure of 1.5 MPa to determine changes in permeability and injection pressures of steady flow in man-made sandstone columns with kerosene and salt water of various salinities before and after plugging by fuzzy-ball fluids. Test results show that, under constant flow rate of 0.1 mL/ min, displacement pressures of formation water containing Fe2+, Ca2+ and Mg2+ with salinity of 1×104 mg/L, 10×104 mg/L, 20×104 mg/L, respectively, increased from 0.46-0.63 MPa to 1.39-2.23 MPa, plugging capabilities increased by 205.83%-262.64%, and permeability decreased from 140.82-193.30 mD to 66.96-109.85 mD with a losing rate of 43.15%-52.53% after plugging by the fuzzy-ball fluid. In addition, kerosene was used to simulate formation oil to determine plugging performances under identical conditions. The results show that displacement pressures increased by 5.83%-8.08%, from 0.48-0.52 MPa to 0.51-0.55 MPa, and permeability decreased from 232.05- 272.52 mD to 211.09-249.25 mD with losing rate of 2.26%-4.51%. Fuzzy-ball fluids were applied in Well Y and Well Z with formation water salinity of 8×104 mg/L and 4×104 mg/L for stabilizing oil production and water control. By promoting pumping frequency and deeper pumping, water production in these wells decreased by 46.38% and 15.99%, whereas oil production increased by 6 200% and 180% respectively. These research results and application performances suggest that the fuzzy-ball fluids with resistance to high-salinity formation water can be deployed for stabilizing oil production and water control.
- water plugging /
- fuzzy-ball fluid /
- high-salinity formation water /
- stabilizing oil production and water control /
- laboratory test /
- field application

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适于高矿化度地层水地层的稳油控水绒囊流体

doi: 10.13639/j.odpt.2016.02.017

1. 中海油能源发展股份有限公司工程技术分公司

2. 北京华油科隆开发公司3. 中国石油大学华东

3. 华北油田分公司勘探开发研究院

收稿日期: 2019-05-22
修回日期: 2019-05-22
刊出日期: 2016-05-11

中图分类号: TE358

关键词:

堵水 /

摘要: 为验证绒囊流体在含高矿化度地层水地层中稳油控水效用，在温度120 ℃、围压15 MPa、回压1.5 MPa 条件下，采用恒流速法测定绒囊流体封堵前后，含不同矿化度盐水和煤油的人造砂岩柱塞稳定流动渗透率和注入压力变化。实验结果表明，0.1 mL/min 恒定流速下，绒囊流体封堵前后，含Fe2++Ca2++Mg2+ 矿化度分别为1×104 mg/L、10×104 mg/L、20×104 mg/ L 盐水岩心驱替压力由0.46~0.63 MPa 升至1.39~2.23 MPa，封堵能力提高205.83%~262.64%；渗透率140.82~193.30 mD 降至66.96~109.85 mD，损失率43.15%~52.53%。以煤油模拟地层原油，相同条件下测定封堵前后效果，驱替压力0.48~0.52 MPa 升至0.51~0.55 MPa，增幅5.83%~8.08%；渗透率232.05~272.52 mD 降至211.09~249.25 mD，损失率2.26%~4.51%。在地层水矿化度8×104 mg/L、4×104 mg/L 的Y 井和Z 井实施绒囊流体稳油控水，通过提高泵次、深抽等工艺，油井产水量分别降低46.38%、15.99%，产油量提高6 200%、180%。研究和应用表明，绒囊流体抗高矿化度堵水体系能够实现稳油控水。

English Abstract

Fuzzy-ball fluid for stabilizing oil production and water control in formations with high-salinity water

1. CNOOC EnerTech-Drilling &

2. Production Co., Tianjin 300452, China

3. Beijing Huayou KelongDevelopment Corp., Beijing 100028, China

Received Date: 2019-05-22
Rev Recd Date: 2019-05-22
Publish Date: 2016-05-11

Keywords:

water plugging /
fuzzy-ball fluid /
high-salinity formation water /
stabilizing oil production and water control /
laboratory test /
field application

Abstract: To clarify the performance of fuzzy-ball fluid in stabilizing oil production and water control in formations with high-salinity water, the constant flow velocity was used under temperature of 120 ℃, confining pressure of 15 MPa and backpressure of 1.5 MPa to determine changes in permeability and injection pressures of steady flow in man-made sandstone columns with kerosene and salt water of various salinities before and after plugging by fuzzy-ball fluids. Test results show that, under constant flow rate of 0.1 mL/ min, displacement pressures of formation water containing Fe2+, Ca2+ and Mg2+ with salinity of 1×104 mg/L, 10×104 mg/L, 20×104 mg/L, respectively, increased from 0.46-0.63 MPa to 1.39-2.23 MPa, plugging capabilities increased by 205.83%-262.64%, and permeability decreased from 140.82-193.30 mD to 66.96-109.85 mD with a losing rate of 43.15%-52.53% after plugging by the fuzzy-ball fluid. In addition, kerosene was used to simulate formation oil to determine plugging performances under identical conditions. The results show that displacement pressures increased by 5.83%-8.08%, from 0.48-0.52 MPa to 0.51-0.55 MPa, and permeability decreased from 232.05- 272.52 mD to 211.09-249.25 mD with losing rate of 2.26%-4.51%. Fuzzy-ball fluids were applied in Well Y and Well Z with formation water salinity of 8×104 mg/L and 4×104 mg/L for stabilizing oil production and water control. By promoting pumping frequency and deeper pumping, water production in these wells decreased by 46.38% and 15.99%, whereas oil production increased by 6 200% and 180% respectively. These research results and application performances suggest that the fuzzy-ball fluids with resistance to high-salinity formation water can be deployed for stabilizing oil production and water control.

引用本文: