目的：分析良性阵发性位置性眩晕（ BPPV）患者变位试验中反转相眼震的参数特征，探讨其临床意义和产生机制。方法 BPPV患者183例，其中后半规管管石症（ posterior semicircular canalithasis， PSC-Can）108例（59.0％），水平半规管管石症（horizontal semicircular canalithasis， HSC-Can）55例（30.1％），水平和后半规管的壶腹嵴顶结石症（semicircular canal cupulolithiasis， SC-Cup）15例（8.2％），上半规管管石症（anterior semicircular canalithasis ，ASC-Can）5例（2.7％）。应用视频眼震图仪记录变位试验诱发的眼震，分析比较Dix-Hallpike试验各头位的垂直眼震以及滚转试验各头位水平眼震的方向、强度、时间等参数特点。结果15例SC-Cup和5例ASC-Can患者均未见反转相眼震；108例PSC-Can患者在Dix-Hallpike试验患侧悬头位诱发向上的垂直眼震（第一相眼震）消失之后，其中54例（50.0％）出现向下的垂直眼震（反转相眼震），其第一相眼震与反转相眼震的潜伏期、持续时间、眼震强度分别为[（2.00±1.10） s，（3.54±1.42） s]、[（16.27±4.95） s，（61.65±33.69） s]、[（51.80±25.25）°/s，（10.65±6.29）°/s]；55例HSC-Can患者在滚转试验患侧转头位诱发与转头方向相同的水平眼震（第一相眼震）消失之后，其中43例（78.2％）出现与转头方向相反的水平眼震（反转相眼震），其第一相眼震与反转相眼震的潜伏期、持续时间、眼震强度分别为[（1.67±1.07）s，（3.57±1.89） s]、[（25.19±9.74） s，（70.48±40.26） s]、[（68.47±30.18）°/s，（11.22±8.78）°/s]。通过配对t检验分别比较PSC-Can及HSC-Can患者第一相眼震与反转相眼震的潜伏期、眼震强度及持续时间，其差异均具有统计学意义（ P值均＜0.05）。通过独立样本t检验比较这两组管石症患者中有反转相眼震者与无反转相眼震者第一相眼震的参数，其中眼震强度的差异有统计学意义（P值均＜0.05

Objective To investigate the clinical significances and formation mechanism by analyzing the characteristics of the reverse phase nystagmus parameters from benign paroxysmal positional vertigo ( BPPV ) positioning test.Methods There were 183 cases with BPPV , including 108 cases (59.0%) of posterior semicircular canal canalthasis , 55 cases ( 30.1%) of horizontal semicircular canal canalthasis, and 15 cases(8.2%) of horizontal and posterior semicircular canal cupulolithiasis and 5 cases (2.7%) of anterior semicircular canalithasis .The video-nystagmograph was utilized in positioning tests to induce nystagmus.The direction , intensity , time parameters characteristic of vertical nystagmus inDix-Hallpike test and horizontal nystagmus in roll test were analyzed and compared.Results There were no reversal phase nystagmus in 15 cases of semicircular canal cupulolithiasis and 5 cases of anterior semicircular canalithasis .After the disappearance of vertical nystagmus which induced by hanging

目的：探讨变位眼震试验阴性的良性阵发性位置性眩晕的诊断与治疗方法，研究其变位眼震试验阴性的影响因素。方法：2012年1月-2014年11月收治良性阵发性位置性眩晕患者4例，仅有典型的临床症状，而变位眼震试验阴性，给予相应的Epley管石复位法或Barbecue翻滚复位法治疗。结果：Dix-Hallpike诱发试验时出现短暂性眩晕感但无明显特征性眼震的2例患者经Epley管石复位法治疗后，1例患者症状完全缓解，1例症状明显好转。平卧侧头试验时出现短暂性眩晕感但无明显特征性眼震的2例患者经Barbecue翻滚复位治疗后1例症状完全缓解，1例症状明显改善。结论：Epley法及Barbecue翻滚法治疗变位眼震试验阴性的良性阵发性位置性眩晕效果良好。

Objective:To explore the diagnosis and treatment of benign paroxysmal positional vertigo with negative deflection of nystagmus test and the effect factors of negative deflection of nystagmus test.Methods:4 cases with benign paroxysmal positional vertigo from January 2012 to November 2014 only with the typical clinical symptoms and negative deflection of nystagmus test were treated with Epley stone restoration method or Barbecue roll reduction method.Results:2 cases with brief vertigo feeling but no obvious characteristic of nystagmus in Dix-Hallpike induced experiment were treated with Epley stone restoration method,1 case had complete remission and 1 case had improved significantly.2 cases with brief vertigo feeling but no obvious characteristic of nystagmus in Recumbent lateral head test were treated with Barbecue roll reduction method,1 case had complete remission and 1 case had improved significantly.Conclusion:Epley stone restoration method and Barbecue roll reduction me

苏里格气田石千峰组和石盒子组泥岩地层易发生严重井壁垮塌,井塌划眼、卡钻、填眼侧钻等复杂情况频繁发生。针对苏里格气田的地层岩性特点,开展了低含量KCl钻井液研究,通过保持聚磺钻井液中0.8%~1.0%的KCl含量,提高体系的抑制防塌性能。2口井的现场应用表明,该体系抑制性强,砂样清晰,无垮塌现象,起下钻通井无阻卡;封堵造壁和流变性能良好,滤饼光滑致密,性能稳定,钻井液无排放,较好地满足了井下施工需要,为安全高效开发苏里格气田积累了经验。

Severe borehole collapse occur easily in mudstone formations of Shiqianfeng Formation and Shihezi Formation of Sulige Gas Field, and troubles like hole collapse reaming, sticking, filling the hole and sidetracking often occur also. In view of the formation rock properties and characteristics of Sulige Gas Field, study was conducted on low content KCl drilling fluid; the inhibition and anti-collapse performance of the drilling fluid system is improved by maintaining 0.8%-1.0% of KCl in polysulfonate drilling fluid. Its appli-cation in two wells shows that this system has generated strong inhibition and clear sand specimen with no collapse and no obstructions in wiper trips; it has favorable performance in plugging and side-wall building and rheological property; the filter cake is smooth and tight and has stable performance; there is no discharge of drilling fluid; all of these properties satisfactorily meet the downhole service requirements and provide experiences for safe and efficien

针对涪陵焦石坝区块地质条件复杂、各向异性大,易导致发生井下故障、钻速慢、钻井周期长及成本居高不下的问题,在分析该区块页岩气钻井完井技术难点的基础上,进行了页岩气水平井钻井工程技术适应性评价,通过对丛式井布井方案、井身结构、井眼轨道设计、优快钻井技术、钻井液技术及页岩气层长水平段固井技术等进行优选及进一步优化,提出了涪陵焦石坝区块页岩气水平井钻井完井技术方案。该技术方案在焦页1-2HF井等17口井进行了现场实践及应用,初步形成了涪陵焦石坝区块页岩气水平井钻井完井技术。应用表明,该技术可显著提高机械钻速、缩短钻井周期,可为涪陵焦石坝区块页岩气规模开发提供技术支持。

In view of the problems of frequent downhole accidents in shale gas well drilling in Jiashiba Block of Fuling Area ,slow penetration rate ,long drilling cycle ,and high cost caused due to complex geological conditions and strong anisotropy ,the adaptability of drilling technologies used in Jiaoshiba Block was evaluated based on the a-nalysis on the difficulties of shale gas well drilling .The technical drilling scheme for Jiaoshiba Block shale gas hori-zontal wells in Fuling Area was then proposed through evaluation ,selection and optimization of cluster well place-ment ,casing program ,well trajectory ,fast drilling techniques ,drilling fluid ,and cementing techniques for the long horizontal section .The technical scheme has been applied in 17 wells including Well Jiaoye 1 2HF resulting in sig-nificant increase in penetration rate and drilling cycle reduction .The research provides sound technical support for shale gas’commercial development in Jiaoshiba Block of Fuling Area .

为解决石壕煤矿区供水难题,克服地面勘探效果欠佳的问题,决定采用井下瞬变电磁勘探进行水源井定位。通过分析该矿的水文地质资料,发现在硖石逆断层附近奥灰岩裂隙相对发育,有利于地下水径流及形成富水区,且南大巷底板存在局部少量渗水现象。为此对14采区南大巷进行了井下瞬变电磁勘探,并发现了一处低阻异常区。解释该异常区为受构造影响的奥灰溶裂隙发育形成的富水区,有供水意义。在低阻区凿打2眼水井,涌水量分别为200m^3/h、120 m^3/h,两井涌水情况与勘探成果基本吻合。

To settle the hard nut of water supply in the Shihao coalmine, overcome the poor effect of surface prospecting, the under-ground TEM water well positioning has been decided. Through the coalmine hydrogeological data analysis has found relatively well de-veloped Ordovician limestone fissures near the Xiashi reversed fault, thus in favor of groundwater runoff and formation of water-rich zone, moreover, in south main roadway floor exists little seepage locally. For this reason, underground TEM prospecting has been car-ried out in No.14 winning district south main roadway, and a conductive abnormal area found. The abnormal area is interpreted as a wa-ter-rich zone formed by structural impacted Ordovician limestone karst fissure development with water supply consequence. Two water wells have been drilled in the conductive area with outflow rates of 200m3/h and 120m3/h respectively, thus basically tally with pros-pecting results.