Study and Pilot Test of Activator Flooding for Heavy Oil

2018 ◽  
Author(s):  
Jian Zhang ◽  
Shanshan Wang ◽  
Yuejun Zhu ◽  
Guang Yang ◽  
Xiaodong Kang ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Pilot Test

Application and Exploration of Early In-Situ Combustion Huff-and-Puff Technology in a Deep Undisturbed Reservoir with Extra Heavy Oil

2021 ◽  
pp. 1-13
Author(s):  
Wang Xiaoyan ◽  
Zhao Jian ◽  
Yin Qingguo ◽  
Cao Bao ◽  
Zhang Yang ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Heavy Oil ◽  
Gas Injection ◽  
Thermal Recovery ◽  
Oil Field ◽  
Pilot Test ◽  
In Situ Combustion ◽  
Coiled Tubing

Summary Achieving effective results using conventional thermal recovery technology is challenging in the deep undisturbed reservoir with extra-heavy oil in the LKQ oil field. Therefore, in this study, a novel approach based on in-situ combustion huff-and-puff technology is proposed. Through physical and numerical simulations of the reservoir, the oil recovery mechanism and key injection and production parameters of early-stage ultraheavy oil were investigated, and a series of key engineering supporting technologies were developed that were confirmed to be feasible via a pilot test. The results revealed that the ultraheavy oil in the LKQ oil field could achieve oxidation combustion under a high ignition temperature of greater than 450°C, where in-situ cracking and upgrading could occur, leading to greatly decreased viscosity of ultraheavy oil and significantly improved mobility. Moreover, it could achieve higher extra-heavy-oil production combined with the energy supplement of flue gas injection. The reasonable cycles of in-situ combustion huff and puff were five cycles, with the first cycle of gas injection of 300 000 m3 and the gas injection volume per cycle increasing in turn. It was predicted that the incremental oil production of a single well would be 500 t in one cycle. In addition, the supporting technologies were developed, such as a coiled-tubing electric ignition system, an integrated temperature and pressure monitoring system in coiled tubing, anticorrosion cementing and completion technology with high-temperature and high-pressure thermal recovery, and anticorrosion injection-production integrated lifting technology. The proposed method was applied to a pilot test in the YS3 well in the LKQ oil field. The high-pressure ignition was achieved in the 2200-m-deep well using the coiled-tubing electric igniter. The maximum temperature tolerance of the integrated monitoring system in coiled tubing reached up to 1200°C, which provided the functions of distributed temperature and multipoint pressure measurement in the entire wellbore. The combination of 13Cr-P110 casing and titanium alloy tubing effectively reduced the high-temperature and high-pressure oxygen corrosion of the wellbore. The successful field test of the comprehensive supporting engineering technologies presents a new approach for effective production in deep extra-heavy-oil reservoirs.

Field Application of Polymer Microspheres Flooding: A Pilot Test in Offshore Heavy Oil Reservoir

2012 ◽  
Author(s):  
Chao Liu ◽  
Xinwu Liao ◽  
Yunlai Zhang ◽  
Ming-Ming Chang ◽  
Chunrong Mu ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Field Application ◽  
Oil Reservoir ◽  
Polymer Microspheres ◽  
Pilot Test ◽  
Heavy Oil Reservoir

Optimization of Carbonate Heavy Oil Reservoir Development Using Surfactant Flooding: from Laboratory Screening to Pilot Test (Russian)

2020 ◽  
Author(s):  
Mikhail Alexeevich Varfolomeev ◽  
Rustam Anverovich Ziniukov ◽  
Chengdong Yuan ◽  
Ruslan Kamilevich Khairtdinov ◽  
Sergey Andreevich Sitnov ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oil Reservoir ◽  
Pilot Test ◽  
Surfactant Flooding ◽  
Reservoir Development ◽  
Laboratory Screening ◽  
Heavy Oil Reservoir

Feasibility Study of Gas-EOR Using CO2 and N2 Mixture in a Heavy Oil Reservoir: Experiments and Pilot Test

2019 ◽  
Author(s):  
Hongda Hao ◽  
Jirui Hou ◽  
Fenglan Zhao ◽  
Handong Huang ◽  
Zhixing Wang ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Heavy Oil ◽  
Oil Reservoir ◽  
Pilot Test ◽  
Heavy Oil Reservoir

Comprehensive EOR Screening and Pilot Test for Thar Jath Heavy Oil Field, Sudan

2011 ◽  
Author(s):  
Abdalla Elhaj Suliman ◽  
Ab Wahab Bin Ngah ◽  
Ashraf Elfadil Basbar ◽  
Nor Aidil Anua ◽  
Salaheldin Tawfig Hashim
Keyword(s):  
Heavy Oil ◽  
Oil Field ◽  
Pilot Test

Application of Bacillus spp. in Pilot Test of Microbial Huff and Puff to Improve Heavy Oil Recovery

2017 ◽  
Vol 31 (12) ◽  
pp. 13724-13732 ◽  
Author(s):  
Shanshan Sun ◽  
Yijing Luo ◽  
You Zhou ◽  
Meng Xiao ◽  
Zhiyong Zhang ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Pilot Test ◽  
Heavy Oil Recovery ◽  
Bacillus Spp

Study and Application of EOR on Conventional Heavy Oil Reservoir

2011 ◽  
Vol 236-238 ◽  
pp. 825-828
Author(s):  
Chuan Min Xiao
Keyword(s):  
Heavy Oil ◽  
Oil Reservoirs ◽  
Water Flooding ◽  
Oil Reservoir ◽  
Pilot Test ◽  
Gel Time ◽  
Heavy Oil Reservoirs ◽  
Output Ratio ◽  
Heavy Oil Reservoir ◽  
Displacement Adjustment Method

According to the characters of conventional heavy oil reservoir, liquid and exploitation progress, displacement adjustment method was applied to reduce degression and enhance recovery. The experiment results showed the gel time could be controlled and the strength could be adjusted. The flooding oil rate was more 14.3％ than water flooding in the lab. The pilot test showed that the test effect of moveable gel flooding was significantly good, the accumulated incremental oil production of 6 well groups is 54756t, input-output ratio is 1: 4.1, which shows satisfactory effects in improving the water flooding effect in this conventional heavy oil reservoirs.

Sign in / Sign up

Export Citation Format

Share Document