Simulation logging experiment and interpretation model of array production logging measurements in a horizontal well
Song Hong-Wei♦1,2, Guo Hai-Min 2, Shi Xin-Lei 3, and Shi Hang-Yu 2
1. Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education,Wuhan 430100, China.
2. School of Geophysics and Oil Resources, Yangtze University, Wuhan 430100, China.
3. CNOOC China Limited, Tianjin Branch, Tianjin 300459, China.
Abstract：
The distributions of local velocity and local phase holdup along the radial direction of pipes are complicated because of gravity differentiation, and the distribution of fluid velocity fi eld changes along the gravity direction in horizontal wells. Therefore, measuring the mixture flow and water holdup is difficult, resulting in poor interpretation accuracy of the production logging output profile. In this paper, oil–water two-phase flow dynamic simulation logging experiments in horizontal oil–water two-phase flow simulation wells were conducted using the Multiple Array Production Suite, which comprises a capacitance array tool (CAT) and a spinner array tool (SAT), and then the response characteristics of SAT and CAT in different flow rates and water cut production conditions were studied. According to the response characteristics of CAT in different water holdup ranges, interpolation imaging along the wellbore section determines the water holdup distribution, and then, the oil–water twophase velocity fi eld in the flow section was reconstructed on the basis of the flow section water holdup distribution and the logging value of SAT and combined with the rheological equation of viscous fluid, and the calculation method of the oil–water partial phase flow rate in the flow section was proposed. This new approach was applied in the experiment data calculations, and the results are basically consistent with the experimental data. The total flow rate and water holdup from the calculation are in agreement with the set values in the experiment, suggesting that the method has high accuracy.
. Simulation logging experiment and interpretation model of array production logging measurements in a horizontal well[J]. APPLIED GEOPHYSICS, 2021, 18(2): 171-184.
2021, Vol. 18 
