Open AccessResearch and Application of Fracturing Fluid Preparation with Produced water in Erlian Oilfield
Author(s) -
Bin Zhang,
Meisi Wang,
Ning Li,
Dejun Zhang,
Peng Wang,
Guopeng Weng,
Zhang Yifei,
Changjun Long,
Zhiguo Zeng,
Man Ning
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/446/5/052080
Subject(s) - fracturing fluid , petroleum engineering , guar gum , economic shortage , mixing (physics) , water injection (oil production) , environmental science , chemical engineering , geology , chemistry , engineering , biochemistry , linguistics , philosophy , physics , quantum mechanics , government (linguistics)
Aiming at the problem of shortage of clean water resources and mixing fracturing fluid in winter in Erlian oilfield, the technology of producing water to prepare fracturing fluid was studied. Horizontal comparison of water samples from four combined oil and gas treatment stations shows that oil, surfactant and bacteria are the main factors that affect the indigestion of hydroxypropyl guar gum in oilfield produced water. Through the indoor research developed a new type of multi-functional cosolvent and explored the oilfield produced water confecting fracturing fluid formulation system: 0.3-0.5% hydroxypropyl guar gum +X% multifunctional cosolvent + 0.2% flow-back agent + 0.4-0.6% crosslinking agent. This technology simplifies the mixing process and reduces the amount of additives. The liquid still has a high viscosity after being placed for more than 3 to 4 days in summer. In winter, using the produced water for mixing can reduce the influence of environmental temperature and ensure the smooth construction. After field application in well h5-19, the effect is outstanding, which provides important technical support for follow-up fracturing construction in Erlian oilfield.