Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant plugging layer sealing agent for formation leakage oil well, preparation method of high-temperature-resistant plugging layer sealing agent and plugging method
The invention belongs to the field of oilfield chemistry, and discloses a high-temperature-resistant plugging and sealing agent for a stratum leakage oil well, a preparation method of the high-temperature-resistant plugging and sealing agent and a plugging method, the high-temperature-resistant plugging and sealing agent is composed of two slugs, the first slug is a plugging agent, the second slug is a high-temperature-resistant sealing agent, the plugging agent is formed by mixing G-grade oil well cement, quick lime and plant fiber particles according to the weight ratio of 7: 1: 2, and the high-temperature-resistant sealing agent is a high-temperature-resistant sealing agent. According to the high-temperature-resistant sealing agent, an accelerant and a curing agent are added into phenolic resin, the high-temperature-resistant plugging layer sealing agent is adopted for plugging and layer sealing in site construction, a leakage well section is plugged in a secondary squeezing and replacing mode, and after the squeezed plugging agent is in an initial set state and pressure diffusion is completed, a lower pipe column is adopted for flushing to a reserved ash surface position; and the position of the grey surface is accurately controlled. According to the primary plugging and secondary plugging technology, effective plugging of a target layer can be achieved, the construction effect is guaranteed, the position of a reserved ash surface can be accurately controlled, it is guaranteed that construction is safe and reliable, and geological requirements are met.
本发明属于油田化学领域，公开了一种地层漏失油井耐高温堵漏封层剂及其配制方法与封堵方法，耐高温堵漏封层剂由2个段塞组成，第1段是堵漏剂，第2段是耐高温封口剂，堵漏剂由G级油井水泥、生石灰和植物纤维颗粒按重量配比7:1:2混合而成，耐高温封口剂是在酚醛树脂中加入促进剂及固化剂，现场施工采用耐高温堵漏封层剂进行堵漏封层，以二次挤注顶替的方式进行漏失井段封堵，待挤入的堵漏剂在初凝状态下，压力扩散完毕后，采取下管住冲洗至预留灰面位置的方式，精准控制灰面的位置。本发明一次堵漏，二次封堵工艺可以实现目的层的有效封堵，保证施工效果，可以精准控制预留灰面的位置，保证施工安全可靠，满足地质要求。
High-temperature-resistant plugging layer sealing agent for formation leakage oil well, preparation method of high-temperature-resistant plugging layer sealing agent and plugging method
The invention belongs to the field of oilfield chemistry, and discloses a high-temperature-resistant plugging and sealing agent for a stratum leakage oil well, a preparation method of the high-temperature-resistant plugging and sealing agent and a plugging method, the high-temperature-resistant plugging and sealing agent is composed of two slugs, the first slug is a plugging agent, the second slug is a high-temperature-resistant sealing agent, the plugging agent is formed by mixing G-grade oil well cement, quick lime and plant fiber particles according to the weight ratio of 7: 1: 2, and the high-temperature-resistant sealing agent is a high-temperature-resistant sealing agent. According to the high-temperature-resistant sealing agent, an accelerant and a curing agent are added into phenolic resin, the high-temperature-resistant plugging layer sealing agent is adopted for plugging and layer sealing in site construction, a leakage well section is plugged in a secondary squeezing and replacing mode, and after the squeezed plugging agent is in an initial set state and pressure diffusion is completed, a lower pipe column is adopted for flushing to a reserved ash surface position; and the position of the grey surface is accurately controlled. According to the primary plugging and secondary plugging technology, effective plugging of a target layer can be achieved, the construction effect is guaranteed, the position of a reserved ash surface can be accurately controlled, it is guaranteed that construction is safe and reliable, and geological requirements are met.
本发明属于油田化学领域，公开了一种地层漏失油井耐高温堵漏封层剂及其配制方法与封堵方法，耐高温堵漏封层剂由2个段塞组成，第1段是堵漏剂，第2段是耐高温封口剂，堵漏剂由G级油井水泥、生石灰和植物纤维颗粒按重量配比7:1:2混合而成，耐高温封口剂是在酚醛树脂中加入促进剂及固化剂，现场施工采用耐高温堵漏封层剂进行堵漏封层，以二次挤注顶替的方式进行漏失井段封堵，待挤入的堵漏剂在初凝状态下，压力扩散完毕后，采取下管住冲洗至预留灰面位置的方式，精准控制灰面的位置。本发明一次堵漏，二次封堵工艺可以实现目的层的有效封堵，保证施工效果，可以精准控制预留灰面的位置，保证施工安全可靠，满足地质要求。
High-temperature-resistant plugging layer sealing agent for formation leakage oil well, preparation method of high-temperature-resistant plugging layer sealing agent and plugging method
一种地层漏失油井耐高温堵漏封层剂及其配制方法与封堵方法
WANG JIFENG (Autor:in) / ZHAO RISHENG (Autor:in) / LIU JIANGLING (Autor:in) / XIANG ZHENG (Autor:in) / LIU DAIZONG (Autor:in) / JIAO MINGMING (Autor:in) / QI QINGPENG (Autor:in) / ZHOU QILONG (Autor:in) / LIU YU (Autor:in) / ZHANG AIXIN (Autor:in)
19.12.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2021
Oilfield temperature-resistant plugging agent and preparation method thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2021