Performance Evaluation for High Temperature Blocking Agent of Tannin Foam System

2012 ◽  
Vol 524-527 ◽  
pp. 1518-1525
Author(s):  
Song Yan Li ◽  
Zhao Min Li
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Blocking Agent ◽  
Control Agent ◽  
Interference Phenomenon ◽  
Cyclic Steam Stimulation ◽  
Profile Control ◽  
New Type ◽  
System Selection ◽  
Steam Stimulation

Cyclic steam stimulation is a kind of recover method for heavy oil. Along with steam stimulation cycles increased, steam channeling interference phenomenon will appear. To solve the problem, one of the most effective methods is high temperature profile control technology. In this paper, a new type of high temperature plugging agent of tannin foam system was researched, and the influencing factors on it were analyzed. Through foam system selection and static evaluation high temperature profile control agent of tannin foam system has been selected. The formula is: foaming agent DHG-1 for 0.5%, tannin for 7.5%, formaldehyde for 4.0%, phenol for 1.0%, CaCl2 for 1000ppm. The tannin foam system can be used in steam stimulation well.

MFR High Temperature Profile Control Agent Experimental Evaluation

2012 ◽  
Vol 602-604 ◽  
pp. 1250-1254
Author(s):  
Zhen Zhong Fan ◽  
Li Feng Zhang ◽  
Qing Wang Liu
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Gelation Time ◽  
Salt Resistance ◽  
Control Agent ◽  
Heating Time ◽  
The Core ◽  
Profile Control ◽  
Stable Performance ◽  
Breakthrough Pressure

MFR high temperature profile control agent consisted of 6.5% wood Fortunately sulfonic acid calcium (Ca-LS) and 6.5% crosslinker modified furfural resin (MFR),and the gel solution formed a stable performance gel in the 150~300°C.The higher the temperature, the shorter the gelation time; and the longer the heating time, the higher the gel strength. The gel is very stable at 300°C, and is well in acid and salt resistance. The core experiments showed that the blocking agent's blockage ratio is more than 99% ; the units of the breakthrough pressure was greater than 100 kPa / cm,which the gel solution is a good performance of high-temperature profile control agent.

scholarly journals Development and Performance Evaluation of Steam Channeling Plugging Agent of Thermal Oil Recovery

2015 ◽  
Vol 8 (1) ◽  
pp. 58-63
Author(s):  
Wang Chunsheng ◽  
Sun Yingfan ◽  
He Chenglin ◽  
Zhang Haipeng ◽  
Du Qiuying
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Oil Recovery ◽  
Ph Value ◽  
Control Agent ◽  
Formation Condition ◽  
Cross Linking ◽  
Profile Control ◽  
High Efficient ◽  
And Performance

Under the constraints of high temperature and heterogeneity, the common profile control agent can not effectively plug the steam channeling. To address this issue, it is necessary to develop the high temperature resistance steam channeling plugging agent to improve the steam suction profile in the heavy oil reservoir. This paper used Simple Variable Method to optimize the content of the components of the high temperature resistant plugging agent. Static performances evaluation aims to study the influence rules of the formation condition (temperature, salinity and pH value). Dynamic evaluation is used to study its performance (plugging ratio, residual resistance factor, scouring resistance and thermal stability) in the sand-filled pipe to testify its applicability. The ratio of the component and the injection sequence are shown as follows: 0.03% coagulant +2.2% cross-linking agent I + 1.2% cross-linking II + 6% high efficient main agent. The evaluation experiment results show that the gel can resist at least 280ºC, the plugging ratio is above 93.1%. The plugging ratio only have a 8.43% reduction after scoured by 15 PV steam (280ºC). After a 10-day thermal stability experiment (280 ºC), the plugging ratio is still above 80%. The result indicated that the plugging agent is suitable for the improvement of steam suction profile. The suggested way of injection is also provided.

A New Biopolymer for High-Temperature Profile Control: Part II-Field Results

1989 ◽  
Author(s):  
K. Sampath ◽  
L.G. Jones ◽  
E.T. Strom ◽  
C.H. Phelps ◽  
C.S. Chiou
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Profile Control ◽  
Control Part

Water Shutoff and Profile Control with the Combination of Single Fluid and Double Fluids

2014 ◽  
Vol 962-965 ◽  
pp. 741-745
Author(s):  
Hao Wang
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Field Tests ◽  
Economic Benefits ◽  
Thermal Recovery ◽  
Working Fluids ◽  
Water Shutoff ◽  
Profile Control ◽  
Utilization Ratio ◽  
Chemical Water

Both the single fluid and double-fluid method for water shutoff and profile control have their limitations. If the two kinds of working fluids are used in combination for water shutoff and profile control, each of them exhibits its own plugging capability while they can form plugging materials when they contact and react with each other. This method can be used as a plugging system in the formations, eliminating the low utilization ratio and huge waste of the single or double-fluid chemicals. It can enhance the plugging capability and improve the water shutoff and profile control results. The single and double fluid (SAD) system has been proved satisfactory in the field tests of conventional chemical water shutoff and profile control, high temperature chemical water shutoff and high temperature profile control and channeling-plugging in thermal recovery wells. The economic benefits are remarkable from the field tests of 14 wells.

Development and Evaluation of Salt-Resisting Polymer Gel Profile Control Agent

2013 ◽  
Vol 781-784 ◽  
pp. 426-430 ◽  
Author(s):  
Guang Yang ◽  
Jian Zhang ◽  
Xin Sheng Xue ◽  
Ying Xian Cui ◽  
Wen Sen Zhao
Keyword(s):  
High Temperature ◽  
Storage Modulus ◽  
Water Erosion ◽  
Control Agent ◽  
Polymer Gel ◽  
Laboratory Findings ◽  
Water Shutoff ◽  
Profile Control ◽  
Weak Gel

Be aimed at the characteristics of high temperature-salinity and severe heterogeneity of Bohai oilfield. This paper studies three different strength kinds of polymer gel profile control agents. Use storage modulus evaluates strength of polymer gel. the result indicate that the storage modulus of weak gel is between0.1 Pa and 1.0 Pa, the storage modulus of moderate gel is between1.0 Pa and 3.1 Pa, the maximal value of powerful gels storage modulus is11.9 Pa during 90 days. Core laboratory findings indicate that these different strength kinds of polymer gel have well formation sealing quality and endure washing out quality,40PV by water erosion , the formation sealing rate is up 90%.the experiment result of water shutoff and flooding oil indicate that the EOR is13.44% in heterogeneity core.

The New Development of Amphiphilic Polymer Profile Control Agent in High Temperature and High Salinity Reservoirs

2019 ◽  
Author(s):  
Hongbin Yang ◽  
Wanli Kang ◽  
Hongwen Zhang ◽  
Bobo Zhou ◽  
Xinxin Li ◽  
...  
Keyword(s):  
High Temperature ◽  
High Salinity ◽  
Control Agent ◽  
Amphiphilic Polymer ◽  
Profile Control ◽  
New Development

scholarly journals Performance Evaluation of a New Type of Polymer Profile Control Agent

2015 ◽  
Vol 06 (05) ◽  
pp. 348-352 ◽  
Author(s):  
Qingwang Liu ◽  
Zhe Zhang ◽  
Zhenzhong Fan ◽  
Zhenzhong Fan ◽  
Jigang Wang
Keyword(s):  
Performance Evaluation ◽  
Control Agent ◽  
Profile Control ◽  
New Type

scholarly journals Development and Performance Evaluation of a High-Temperature Profile Control System

ACS Omega ◽  
2020 ◽  
Vol 5 (28) ◽  
pp. 17828-17838
Author(s):  
Chunsheng Wang ◽  
Lei Zhang ◽  
Guoshuai Ju ◽  
Qiji Sun
Keyword(s):  
Performance Evaluation ◽  
Control System ◽  
High Temperature ◽  
Temperature Profile ◽  
Profile Control ◽  
And Performance
Sign in / Sign up

Export Citation Format

Share Document