scholarly journals The Synthesize and Property Evaluation of High Temperature Resistant Phenolic Resin-Type Profile Control Agent

2014 ◽  
Vol 04 (03) ◽  
pp. 173-176 ◽  
Author(s):  
Qingwang Liu ◽  
Hongwei Mu ◽  
Jigang Wang ◽  
Zhenzhong Fan
Keyword(s):  
High Temperature ◽  
Phenolic Resin ◽  
Control Agent ◽  
Property Evaluation ◽  
Profile Control

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.

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.

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

Experimental Study of High Temperature Profile Control Agent for Oily Sludge

2012 ◽  
Vol 550-553 ◽  
pp. 603-606
Author(s):  
Jin Sheng Zhao ◽  
Zi Qiang Xu ◽  
Li Na Shen
Keyword(s):  
Control Agent ◽  
Field Application ◽  
Solid Content ◽  
Good Effect ◽  
Oily Sludge ◽  
Production Well ◽  
Shengli Oilfield ◽  
Property Evaluation ◽  
Profile Control ◽  
Long Time

Oily sludge mainly comes from well site and precipitation tank in gathering point. It is very harmful to oilfield environment and has been a problem of oilfields for a long time. On the base of analyses of the composition solid content of oily sludge in Shengli oilfield, a profile control agent has been developed. Plugging property evaluation experiment showed that this kind of profile control agent possessed core plugging ratio above 99 percent and breakthrough pressure above 10 MPa. So it has higher plugging strength. Parallel core experiment showed that most of the profile control agent is injected into the high permeability zone, for the reservoir whose permeability contrast is above 7, and the harm of profile control agent to low permeability zone is below 15 percent. This oily sludge profile control agent can be used in profile controlling of waterflood input well and steam blocking of thermal production well, this technology will have a good effect in field application.

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.

Manufacturability Study for Etching High-Density BST/Pt Capacitors

2000 ◽  
Vol 655 ◽  
Author(s):  
Jay Hwang
Keyword(s):  
High Temperature ◽  
Etch Rate ◽  
Control Process ◽  
High Density ◽  
Wafer Surface ◽  
Plasma Chamber ◽  
Reactive Plasma ◽  
Pt Electrodes ◽  
Profile Control

AbstractProfile control, process repeatability and productivity concerns in etching Pt electrodes are reviewed specifically for application in fabricating high-density BST/Pt capacitors. The approach of using a high temperature cathode in a high-density reactive plasma chamber has produced a repeatable >85° Pt profile, stable etch rate and low particle results over a 500-wafer marathon test. A “corrosion-like” BST defect can be prevented by adding a post etch treatment to remove any corrosive residue from the wafer surface. A feasible manufacturing solution for etching BST/Pt capacitors for future high-density DRAM application is demonstrated.

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