CAJ | 학술논문

依据气体循环钻井的工艺特点研究了循环钻井井筒及地面压力分布,在压力分布基础上结合最小动能法深入研究了封闭循环钻井关键点的选择,并研究了不同关键点对循环钻井注气量的影响.由于循环钻井为闭环钻井,利用循环钻进压力分布计算理论、气体P- V-T(压力-体积-温度)理论、最小动能携岩标准,研究了井口压力对注气量的影响.研究成果为循环钻井提供了理论基础,对循环钻井的现场应用具有积极的指导作用.
의거기체순배찬정적공예특점연구료순배찬정정통급지면압력분포,재압력분포기출상결합최소동능법심입연구료봉폐순배찬정관건점적선택,병연구료불동관건점대순배찬정주기량적영향.유우순배찬정위폐배찬정,이용순배찬진압력분포계산이론、기체P- V-T(압력-체적-온도)이론、최소동능휴암표준,연구료정구압력대주기량적영향.연구성과위순배찬정제공료이론기출,대순배찬정적현장응용구유적겁적지도작용.
Based onthe technical characteristics of gas-cycling drilling, the wellbore and surface pressure distributions of the gas-cycling drilling were studied, and on the basis of the pressure distributional study and in combination with the method of minimum dynamic energy, the selection of key point of closed cycling drilling and effect of different key points on gas injectingvolume were studied. Because it was a closed well drilling, the theory of pressure distribution for cycling drilling, the theory of gas pressure-volume-temperature, the rock carrying standard of minimum dynamic energy were used to study the effect of wellhead pressure on gas injection volume. The result shows that it provides a theoretical basis for cycling drilling and provides a guidance of field application of gas-cycling drilling.