川西深层致密砂岩水平井钻井提速技术

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中图分类号：TE254 文献标识码：A DOI：10.12473/CPM.202404060

Tang Tao，He Long，Ou Biao，et al.ROP Improving technologyfor horizontal well driling in deep tight sandstone inWestern Sichuan basin［J]. China Petroleum Machinery，2025，53（5）：30-38.

ROP Improving Technology for Horizontal Well Drilling in Deep Tight Sandstone in Western Sichuan Basin

Tang Tao 1，2 He Long³Ou Biao1Yan Yancheng1Huang Hechun’Zhang Shengjun1Wang Pingquan² （1.PetroleumEngineering TechnologyResearch Instute，Sinopec SouthwestOil&GasCompany；2.StateKeyLaboratoryofOil& Gas Reservoir Geology and Exploitation，Southwest Petroleum University；3.Sinopec Southwest Oil & Gas Company）

Abstract：The Xujiahe Formation in western Sichuan Basin has abundant resources and is the main batlefield for increasing reserves and production，but the degree of reserve utilization is low.In this gas reservoir with complex geologicalconditions，horizontal welldrilling faces several challenges such as low build-up efficiencyof largesized wellbore，low rate of penetration（ROP），diffcult prevention ofcollsion and interwell interference in long vertical well section，wellbore stability，lost circulation and wellbore cleaning.Through researches on key technologiesincludinganti-incination，anti-colisionandanti-collision whilefastdrillingoflarge-sized wellbore ineasily inclined formations basedon pre-bending dynamics，ROP improvement in dificult-to-drillformations，real-time optimization of drilling parameters based on ROP sensitivityanalysis，geology-engineering integrated precise control of wellbore trajectory，driling fluidand lostcirculation control，and wellbore cleaning basedon theevaluationof friction during actual drilling，a ROP improving technology for horizontal well driling in tightsandstoneswas formed.This technology was successfully applied in two horizontal wells，with the drilling cycle reduced by （204号 65.7% ， the average ROP improved by 194% ，and a horizontal length up to 1 021m . The research results providetechnical support for the exploration and development of tight gas resources，and also provide reference for efficient and fast drilling of horizontal wells in tight sandstones in China.

Keywords： Xujiahe； tight sandstone；horizontal well；ROP improvement；driling parameter optimization; drilling fluid

0引言

须家河组气藏分布广，川西地区主要分布在新场、合兴场-高庙子-丰谷、大邑、孝泉、洛带、鸭子河、罗江等区块[]。（剩余15792字）