RU2007107257A

RU2007107257A - METHOD FOR CONTINUOUS DISCRETE SAMPLING OF THE SUBSTANCE OF THE LABEL OF THE GAS WELL AND THE DEVICE FOR ITS IMPLEMENTATION

Info

Publication number: RU2007107257A
Application number: RU2007107257/03A
Authority: RU
Inventors: Олег Евгеньевич Аксютин (RU); Олег Евгеньевич Аксютин; Игорь Васильевич Зиновьев (RU); Игорь Васильевич Зиновьев; Алексей Васильевич Завгороднев (RU); Алексей Васильевич Завгороднев; Сергей Васильевич Беленко (RU); Сергей Васильевич Беленко; гов Сергей Анатольевич Вар (RU); Сергей Анатольевич Варягов; Виктор Алексеевич Машков (RU); Виктор Алексеевич Машков
Original assignee: Общество с ограниченной ответственностью "Кавказтрансгаз" открытого акционерного общества "Газпром"(RU); Общество с ограниченной ответственностью "Кавказтрансгаз" Открытого акционерного общества "Газпром"
Priority date: 2007-02-26
Filing date: 2007-02-26
Publication date: 2008-09-10
Also published as: RU2354826C2

Claims

1. The method of continuous discrete sampling of the substance of the label-indicator from a gas well, including the introduction into the reservoir through different injection wells of indicators in a gas carrier in the form of gas-filled microspheres with a degree of dispersion of 0.5-0.6 μm, sampling from production wells, characterized the fact that the sampling of indicators is carried out by passing gas through a sampling pipe with control of the time of gas passing and flow rate of the well, and the gas flow rate through the sampling pipe is determined from the ratio:

where d _vn.pr - internal diameter of the sampling tube casing, m;

Q _gpr - gas flow through the sampling tube, m ³ / s;

ρ ₂ - gas density, kg / m ³ ,

and the content of indicator microspheres is determined from the ratio:

C _i = K _i · (Q _g.p.i · t _i ) ^-1 ,

where K _i is the number of indicator microparticles on the surface of the filter-membrane, pcs;

Q _g.pr.i - medium flow of gas through the sampling tube during an interval of time passes (filtering) of the gas (s), ³ m / s.

2. A device for continuous discrete sampling of the label substance from a gas well, including a detachable housing with a sampling tube for supplying and introducing gas, a pressure gauge, a flow regulator, characterized in that it is equipped with a double filter consisting of a filter membrane and a ceramic filter with different permeability, and the filter membrane is coated on the side of the gas stream with a layer of glue, the specific gravity of which is determined from the ratio:

where M _beats.cl - the specific gravity of the adhesive, kg / m ² ;

d _frequent - the diameter of the indicator microparticles, m;

ρ _cells - the density of the adhesive, kg / m ³ ,

and the diameter of the sampling tube is determined from the ratio:

d _mp. = d _int.nct · (Q _gpr / Q _well ) ^0.5

where d _vn.kt - the inner diameter of the pipes of the elevator column (tubing), m;

Q _SLE - well flow rate, m ³ / s.

3. The device according to claims 1 and 2, characterized in that the sampling tube for sampling gas from the annulus is made in the form of a half ring, the diameter of which is determined from the ratio:

where d _vn.kol - the inner diameter of the production casing, m;

d _nar.nkt - the outer diameter of the pipes of the elevator column, m