Abstract

Formation damage is caused by invasion of the external reactive solid or liquid fluid into the reservoir which reduces the productivity of pay zone. This study investigates the efficiency of a biodegradable product which is stem peels powder of Grewia optiva tree as noninvasive fluid additive (NIFA) in the water-based drilling fluids. All the equipment were periodically calibrated with API (American Petroleum Institute) standard procedures in order to yield accurate and authentic results. The experimental outcomes showed that after hot rolling at 100 °C for 18 hours SPPGO additive reduced formation invasion of drilling fluid by 56.3% as compared to base mud under 500 psi pressure while existing noninvasive fluid additive (NIFA) reduced invasion by 52.7% in water-based drilling fluid.

摘要

地层损害是由于外部反应性固体或液体流体侵入储层而引起的，这降低了产层的生产率。这项研究调查了一种可生物降解产品的效率，该产品是黄连木的茎皮粉末作为水基钻井液中的非侵入性流体添加剂（NIFA）。所有设备均定期按照API（美国石油协会）标准程序进行校准，以产生准确，可靠的结果。实验结果表明，与在500 psi压力下的基础泥浆相比，在100°C进行热轧18小时后，SPPGO添加剂将钻井液的地层侵入降低了56.3％，而现有的非侵入性流体添加剂（NIFA）将其在水中的侵入降低了52.7％。钻井液。