天然气工业
天然氣工業
천연기공업
NATURAL GASINDUSTRY
2009年
10期
83-85
,共3页
吴革生%刘双全%张振红%师尊禄
吳革生%劉雙全%張振紅%師尊祿
오혁생%류쌍전%장진홍%사존록
靖边气田%气井%压力%喷射%引流%增压%开采%参数
靖邊氣田%氣井%壓力%噴射%引流%增壓%開採%參數
정변기전%기정%압력%분사%인류%증압%개채%삼수
Jingbian Gasfield%gas well%pressure%ejection%conduction%pressure increase%recovery%parameter
天然气喷射引流技术是靖边气田低压气井开采、实现稳定生产、取得较好开采效果的主要技术,如何选择合适的喷射装置设计参数和运行过程中工作制度,对于装置的长期有效运行非常关键.通过现场试验,研究了高低压气流量和引射率随压力的变化规律,掌握了喷射装置的变工况性能:低压气流量与高压气压力为非单调关系,随着高压气压力增加,低压气流量先增加后减小.现场应用中,需要根据工况性能选择合适的高压气工作压力,引射率变化规律与低压气流量变化规律一致,引射率与低压气压力为近似直线关系,且随着高压气压力的减小,斜率就增大.设计过程中,要充分考虑现场应用井的稳压能力,设计合理的工作压力和流量,以延长喷射装置的应用时间.喷射引流装置变工况性能与装置本身结构参数有关,对于不同的喷射装置需要进行变工况性能分析,并做出相应图版来指导现场生产.
天然氣噴射引流技術是靖邊氣田低壓氣井開採、實現穩定生產、取得較好開採效果的主要技術,如何選擇閤適的噴射裝置設計參數和運行過程中工作製度,對于裝置的長期有效運行非常關鍵.通過現場試驗,研究瞭高低壓氣流量和引射率隨壓力的變化規律,掌握瞭噴射裝置的變工況性能:低壓氣流量與高壓氣壓力為非單調關繫,隨著高壓氣壓力增加,低壓氣流量先增加後減小.現場應用中,需要根據工況性能選擇閤適的高壓氣工作壓力,引射率變化規律與低壓氣流量變化規律一緻,引射率與低壓氣壓力為近似直線關繫,且隨著高壓氣壓力的減小,斜率就增大.設計過程中,要充分攷慮現場應用井的穩壓能力,設計閤理的工作壓力和流量,以延長噴射裝置的應用時間.噴射引流裝置變工況性能與裝置本身結構參數有關,對于不同的噴射裝置需要進行變工況性能分析,併做齣相應圖版來指導現場生產.
천연기분사인류기술시정변기전저압기정개채、실현은정생산、취득교호개채효과적주요기술,여하선택합괄적분사장치설계삼수화운행과정중공작제도,대우장치적장기유효운행비상관건.통과현장시험,연구료고저압기류량화인사솔수압력적변화규률,장악료분사장치적변공황성능:저압기류량여고압기압력위비단조관계,수착고압기압력증가,저압기류량선증가후감소.현장응용중,수요근거공황성능선택합괄적고압기공작압력,인사솔변화규률여저압기류량변화규률일치,인사솔여저압기압력위근사직선관계,차수착고압기압력적감소,사솔취증대.설계과정중,요충분고필현장응용정적은압능력,설계합리적공작압력화류량,이연장분사장치적응용시간.분사인류장치변공황성능여장치본신결구삼수유관,대우불동적분사장치수요진행변공황성능분석,병주출상응도판래지도현장생산.
The gas ejector technique is used as a major technique for gas recovery in low pressure gas wells in the Jingbian gas field with stable production and excellent recovering effect. A reasonable work system and proper design parameters are crucial to maintain long-term and effective operation for the gas ejector system. Field experiments were carried out to study on the change laws for high and low pressure gas flow rate and the induction rate upon the change of pressure, and obtained behavior-variation performance for the gas ejector: a nonmonotonic relation was proved between low pressure gas flow rate and high pressure force; with the increase of the high pressure gas force, the low pressure gas flow rate increases firstly and then decreases. In field application, proper high pressure gas force should be selected according to behavior performance, while the change law of the induction rate should be coherent with that of the low pressure gas flow rate, and the induction rate is in approximately linear relation with the lower pressure gas force, with the line slope increasing upon the decrease of the high pressure gas force. During the design process, the pressure stabilizing capability for field wells should be fully considered so as to design reasonable operation pressure and flow rate to prolong the working life of the ejector. The behavior-variation performance of the ejector is related to structural parameters thereof, and the behavior-variation analysis should be carried out according to different ejectors to draw up relevant charts for field production direction.
