Short-time pressure response during the start-up of a constant-rate production of a high pressure gas well

Jin, Yan; Chen, Kang Ping; Chen, Mian; Grapsas, N.; Zhang, F.X.

doi:10.1063/1.3571494

Cited by 11 publications

(4 citation statements)

References 15 publications

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“…During exploitation of high-temperature, high-pressure and high-production gas wells, fluid flow rate in tubing string is high. In addition to well opening and shut-in conditions (Han et al, 2012;Jin et al, 2011), the different geological conditions of different regions will affect the production of gas well (Zhang et al, 2020a). If the fluid flow rate in tubing string changes significantly for certain factors and results in momentum conversion in these conditions, violent pressure fluctuations will be caused in tubing string (Li et al, 2013).…”

Section: Symbol Annotationsmentioning

confidence: 99%

Research on the influence of production fluctuation of high-production gas well on service security of tubing string

Zhi

Wang

Li³

et al. 2021

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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The production of high temperature and high pressure gas wells fluctuates with time, which makes the pressure in the string fluctuate obviously and affects the service security of tubing string. In this paper, a pressure fluctuation model of the complete production process (including well opening, production and shut-in) is established, which is suitable for the multiphase flow of gas well. The pressure fluctuation in the tubing string is simulated. Influence of different well depth and average production on the fluctuating pressure of gas well are analyzed. According to the research results, if the well opening time top is 50 s, a transient pressure fluctuation is generated at wellhead and drops gradually. After the production starts, a pressure fluctuation will occur at wellhead 10~15 s after top, which is small and attenuates quickly. Pressure increases quickly in the shut-in moment and reaches the peak at tsh. Although pressure increases gradually with the well depth, fluctuation flattens out. The hysteresis phenomenon in appearance of pressure wave becomes more and more obvious with the well depth. The greater the production of gas well, the greater the pressure fluctuation in tubing string during well opening and production, but the value may not be very high. During well shut-in, the greater the production, the greater the pressure fluctuation and the value. Amplitude, angular frequency and value of phase are in direct proportion to pressure fluctuation degree and valve radix is in inverse proportion to pressure, which means that the greater the valve radix, the smaller the pressure.

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Section: Symbol Annotationsmentioning

confidence: 99%

Research on the influence of production fluctuation of high-production gas well on service security of tubing string

Zhi

Wang

Li³

et al. 2021

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…They are tensile failure and shearing failure. The tensile failure was mainly caused by the drag force caused by the radius flow [9,10]. The higher the flow rate, the greater the drag force it will cause.…”

Section: Analysis Modelmentioning

confidence: 99%

An Analysis on Wellbore Collapse of Open Hole Completion in Carbonate Formation

Yang

Liu

Zhang

et al. 2012

AMM

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In TK oilfield, there is a large content of carbonatite in cambrian-ordovician, with great depth 4500m-6300m, high temperature 120oC -140oC, anisotropy, developed fracture system and complexity in geological structure. This paper is concerned about wellbore collapse in open hole completion of well R1 and other wells in the collepse well area, and trying to solve this problem through statistics of collapsed wells, and calculate with the mechanics model coupled with temperature field, fluid flow field and rock-mud physicochemical reactions. The result show that the development of hydration stress in planes of weakness, occurrence of nature fractures and technic stress are the most influential factors on wellbore stability. A wellbore in a formation with nature fractures around the wellbore has a testing pressure difference window of 21-28MPa.

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“…Choking was shown to occur also in twodimensional flows when the acceleration effect is important. In a high-pressure gas well, Jin et al (2011aJin et al ( , 2012a showed that gas acceleration was important in the near-wellbore region and provided the critical bottom hole flowing pressure for the occurrence of a choked flow. So far, no one has studied the effect of acceleration on the gas production rate in a well intersected by a propped hydraulic fracture.…”

Section: Introductionmentioning

confidence: 98%

Analytical modeling of acceleration-induced conductivity damage in a propped hydraulic fracture of a high-pressure gas well

Jiang

Chen

Jin

et al. 2015

Journal of Natural Gas Science and Engineering

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Short-time pressure response during the start-up of a constant-rate production of a high pressure gas well

Cited by 11 publications

References 15 publications

Research on the influence of production fluctuation of high-production gas well on service security of tubing string

Research on the influence of production fluctuation of high-production gas well on service security of tubing string

An Analysis on Wellbore Collapse of Open Hole Completion in Carbonate Formation

Analytical modeling of acceleration-induced conductivity damage in a propped hydraulic fracture of a high-pressure gas well

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