地层水矿化度对补偿中子测井影响的自动校正方法研究

李鹏举, 李勇勇, 徐茂河, 付勇路, 田甜

A study of automatic correction method for the influence of formation water salinity on compensating neutron logging

Peng-Ju LI, Yong-Yong LI, Mao-He XU, Yong-Lu FU, Tian TIAN

表1 不同矿化度、孔隙度地层的近远探测器计数率比值

Table 1 Near-to-far detector counting ratio for different salinity and porosity formations

K 103 mg/L R ?=5% R ?=10% R ?=15% R ?=20% R ?=25% R ?=30% R ?=35% R ?=40% 2 5.5358 7.3936 9.2141 11.6282 14.1128 17.0609 18.9479 21.6945 4 5.5444 7.4277 9.2462 11.6992 14.2696 17.1051 19.0131 21.9471 6 5.5572 7.4825 9.3373 11.7815 14.3485 17.2619 19.0914 22.1562 8 5.5731 7.5638 9.3841 11.9180 14.3956 17.4312 19.2609 22.3781 10 5.5901 7.5894 9.4568 12.0523 14.5766 17.6433 19.4910 22.3431 20 5.6567 7.7037 9.7060 12.5078 14.9819 18.0859 20.3406 22.7827 40 5.8027 8.0302 10.1818 13.3278 15.9587 19.0758 21.2311 23.7184 60 5.8788 8.2548 10.6310 14.0790 16.5734 19.9398 22.2737 24.8705 80 5.9763 8.5090 10.9372 14.5618 17.0692 20.9989 23.0968 25.8535 100 6.0386 8.7159 11.3617 14.8231 17.7682 21.5449 23.8259 26.0628 120 6.2177 8.9431 11.8504 15.3939 18.1720 21.3842 24.1710 26.2046 140 6.3345 9.1501 12.1744 15.8193 18.4743 22.1051 23.8934 26.5727 160 6.4960 9.3850 12.5665 16.2511 18.8303 22.3568 24.3982 26.9084 180 6.6368 9.5602 12.7814 16.7247 19.1785 21.9225 24.2472 26.7856 200 6.7386 9.8133 12.9987 16.7941 19.3919 22.4329 24.9869 27.5232