US 11,933,170 B2
Well testing under full field production
Jon Sigurd Berntsen, Porsgrunn (NO); Asle Jostein Hovda, Jakobsli (NO); and Idar Olav Grytdal, Ranheim (NO)
Assigned to Seabed Separation AS, Trondheim (NO)
Appl. No. 17/421,881
Filed by Seabed Separation AS, Trondheim (NO)
PCT Filed Jan. 28, 2020, PCT No. PCT/NO2020/050015
§ 371(c)(1), (2) Date Jul. 9, 2021,
PCT Pub. No. WO2020/159377, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 20190101 (NO), filed on Jan. 28, 2019.
Prior Publication US 2022/0106877 A1, Apr. 7, 2022
Int. Cl. E21B 49/08 (2006.01); B01D 17/02 (2006.01); B01D 17/12 (2006.01); B01D 19/00 (2006.01); E21B 43/34 (2006.01); G01N 33/28 (2006.01)
CPC E21B 49/087 (2013.01) [B01D 17/0214 (2013.01); B01D 17/12 (2013.01); B01D 19/0063 (2013.01); E21B 43/35 (2020.05); G01N 33/2823 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for well testing under full field production, wherein well flow from multiple wells (200a-200d) is run through a production system during full field production, the production system comprising a production slug suppression and gas removal unit (100) and a separator system (10) comprising multiple interconnected inclined tubular separators (11a-11e) for separating gas, oil and water from the well flow, comprising the steps of:
(a) isolating well flow from one of the multiple wells (200a-200d) to define an isolated well and isolating at least one of the inclined tubular separators (11a-11e) from the multiple interconnected inclined tubular separators (11a-11e) and dedicating the at least one isolated inclined tubular separator (11a-11e) for testing,
(b) running the well flow from the isolated well (200a-200d) through a dedicated test slug suppression and gas removal unit (310) and the at least one isolated and dedicated inclined tubular separator (11a-11e) to initiate a test period,
(c) running well flow from non-isolated wells (200a-200d) through the production slug suppression and gas removal unit (100) and non-isolated inclined tubular separators (11a-11e),
(d) measuring volumes of gas, oil and water produced for the isolated well (220a-200d),
(e) adding the respective gas, oil and water produced for the isolated well (220a-200d) from the dedicated test slug suppression and gas removal unit (310) and the at least one isolated and dedicated inclined tubular separator (11a-11e) to the respective gas, oil and water produced for the non-isolated wells (200a-200d) from the production slug suppression and gas removal unit (100) and the non-isolated inclined tubular separators (11a-11e), and
(f) removing the isolation of the isolated well (200a-200d) and at least one isolated and dedicated inclined tubular separator (11a-11e) to end the test period.